{"title":"Motorized Dampers","description":"\u003cp\u003eHoyme has designed and built motorized dampers in Camrose, Alberta since 1984. Every damper here is a complete assembly: body, blade and actuator, ready to wire. Choose by what the air is for, then by duct size and voltage.\u003c\/p\u003e\n\u003ch2\u003eMotorized dampers by application\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh air, make-up air and HRV\/ERV ducts:\u003c\/strong\u003e the \u003ca href=\"\/collections\/fresh-air-dampers\"\u003eHAC inline series\u003c\/a\u003e, 2 to 9 in., 24 Vac, CSA certified. Use the HAC-12 where only 120 Vac is available at the damper.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion air for furnaces, boilers and water heaters:\u003c\/strong\u003e the \u003ca href=\"\/collections\/combustion-air-dampers\"\u003eHOM combustion air damper\u003c\/a\u003e, 4 to 9 in., CSA certified. The appliance cannot fire until the damper proves open.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlue and vent:\u003c\/strong\u003e the \u003ca href=\"\/collections\/flue-dampers\"\u003eHAC-F motorized flue damper\u003c\/a\u003e, which springs open on power loss. CSA certified up to 12 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZone control:\u003c\/strong\u003e \u003ca href=\"\/collections\/zone-control-dampers\"\u003eHAC-H zone dampers\u003c\/a\u003e with a 10% heat bypass blade to prevent high-limit trips on single-speed furnaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior wall terminations:\u003c\/strong\u003e the MAC and MOH \u003ca href=\"\/collections\/hoods-terminations\"\u003emotorized hoods\u003c\/a\u003e combine the damper and the wall hood in one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge duct and commercial:\u003c\/strong\u003e \u003ca href=\"\/collections\/large-diameter-dampers\"\u003elarge diameter dampers\u003c\/a\u003e from 6 to 30 in. with quarter-turn and Belimo actuators, and \u003ca href=\"\/collections\/rectangular-square-dampers\"\u003ecustom rectangular dampers\u003c\/a\u003e built to your dimensions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAS and DDC control:\u003c\/strong\u003e \u003ca href=\"\/collections\/modulating-ddc-dampers\"\u003emodulating and floating point dampers\u003c\/a\u003e with Belimo actuators, 2 to 10 VDC or 3-wire.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePower open or power close\u003c\/h2\u003e\n\u003cp\u003eEvery spring return damper is either power open (PO), which springs closed on power loss, or power close (PC), which springs open. Fresh air and HRV ducts are almost always power open. Flue and combustion air applications fail open. See the \u003ca href=\"\/blogs\/news\/motorized-fresh-air-damper-power-open-vs-power-close-which-one-do-you-need\"\u003epower open vs power close guide\u003c\/a\u003e before you order.\u003c\/p\u003e\n\u003ch2\u003eInterlocks and wiring\u003c\/h2\u003e\n\u003cp\u003eWhere a damper has to interlock with an exhaust fan, the furnace fan, a gas dryer or a non-24 Vac safety circuit, pair it with an \u003ca href=\"\/pages\/adp-product-page\"\u003eADP relay adaptor\u003c\/a\u003e. Colour wiring diagrams for every configuration are in the \u003ca href=\"\/pages\/technical-library\"\u003eTechnical Library\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which damper fits the job? Call technical support at 1-800-661-7382, free for contractors and installers. Hoyme dampers are stocked at HVAC wholesalers across Canada, or order direct here.\u003c\/p\u003e","products":[{"product_id":"hom-combustion-air-damper-24vac","title":"HOM Motorized Combustion Air Damper, CSA Certified, 24 Vac, 4\"–9\", SF1 and SF2","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hom-desc *{box-sizing:border-box;margin:0;padding:0;}.hom-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hom-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hom-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hom-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hom-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hom-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hom-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hom-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hom-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hom-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hom-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hom-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hom-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hom-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hom-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hom-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hom-desc__spec--highlight .hom-desc__spec-label{color:rgba(255,255,255,0.5);}.hom-desc__spec--highlight .hom-desc__spec-value{color:#FFFFFF;}.hom-desc__variants{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hom-desc__variant{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hom-desc__variant-code{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#C8102E;margin-bottom:3px;}.hom-desc__variant-name{font-family:'Montserrat',sans-serif;font-size:11.5px;font-weight:700;color:#001F3F;margin-bottom:4px;}.hom-desc__variant-desc{font-size:12px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hom-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hom-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hom-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hom-desc__variants{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hom-desc\"\u003e\n\u003cp class=\"hom-desc__intro\"\u003eCanada\/USA CSA certified motorized combustion air damper for furnaces, boilers, fireplaces and water heaters. It keeps the combustion air intake closed while the appliance is off and opens before the appliance fires. The built-in end switch is wired into the appliance safety circuit, so the appliance cannot fire until the damper has opened. 24 Vac, 4\" to 9\".\u003c\/p\u003e\n\u003cdiv class=\"hom-desc__bullets\"\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003ePower closed, opens by gravity\u003c\/strong\u003e: the motor holds the damper closed while the appliance is off. On a call for heat, power to the motor is cut and the damper drops open. A power failure or motor failure leaves the combustion air path open\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e combustion air damper, 24 Vac\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003eBuilt-in end switch\u003c\/strong\u003e: wired in series with the thermostat wire to \"W\", so the call for heat reaches the appliance only after the blade has opened\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003eTest\/Run switch\u003c\/strong\u003e: leave it up (RUN) for normal operation; down holds the damper open and bypasses the interlock for troubleshooting\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003eMounts in the appliance area\u003c\/strong\u003e: fastens to the terminating end of the fresh air inlet duct beside the appliance, with the bracket bottom within one foot above burner level\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__bullet\"\u003e\n\u003cspan class=\"hom-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hom-desc__bullet-text\"\u003e\u003cstrong\u003eNot suitable for dryer ventilation\u003c\/strong\u003e: lint accumulation in the motor assembly causes premature failure; use the BDH Back Draft Hood for dryer exhaust\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variants\"\u003e\n\u003cdiv class=\"hom-desc__variant\"\u003e\n\u003cdiv class=\"hom-desc__variant-code\"\u003eSF1\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variant-name\"\u003eSingle-furnace, one appliance\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variant-desc\"\u003eControls and interlocks one furnace, boiler, or appliance. Standard configuration for most residential installations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variant\"\u003e\n\u003cdiv class=\"hom-desc__variant-code\"\u003eSF2\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variant-name\"\u003eDual-furnace, two appliances\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__variant-desc\"\u003eOne damper interlocks with two appliances. Either appliance calling for heat opens the damper; neither can fire until it proves open. Install the SF2 on, or nearest to, the largest appliance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__warning\"\u003e\n\u003cstrong\u003eSF1 vs. SF2: confirm before ordering.\u003c\/strong\u003e SF1 is for installations with one appliance sharing the combustion air duct. SF2 is for installations where two appliances share the same combustion air duct and either may call for heat independently. For commercial applications with appliances rated over 400,000 BTU, slave dampers can be added to the SF1 or SF2. Contact the factory.\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__specs\"\u003e\n\u003cdiv class=\"hom-desc__spec hom-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eInterlock\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003eAppliance cannot fire until damper proves open\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003ePower close, gravity open\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eRelay Adaptor\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003eNone on 24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec\"\u003e\n\u003cdiv class=\"hom-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__note\"\u003e\n\u003cstrong\u003eNeed an ADP relay adaptor?\u003c\/strong\u003e Not on a 24 Vac appliance. The HOM wires directly into the 24 Vac thermostat or aquastat circuit. Use ADP-0MV2-S5A for millivolt (standing pilot) systems or ADP-1102-S5A for 120 Vac safety controls. If the existing safety circuit is not fused, install an in-line fuse between the thermostat wire and HOM wire #1.\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hom-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hom-desc__warranty-sub\"\u003eMade in Canada · 40+ years field-proven in Canadian climates\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ SF1","offer_id":43079070384171,"sku":"HOM-0411-SF1","price":354.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ SF2","offer_id":43079070416939,"sku":"HOM-0412-SF2","price":439.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ SF1","offer_id":43079070515243,"sku":"HOM-0511-SF1","price":359.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ SF2","offer_id":43079070548011,"sku":"HOM-0512-SF2","price":441.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ SF1","offer_id":43079070646315,"sku":"HOM-0611-SF1","price":363.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ SF2","offer_id":43079070679083,"sku":"HOM-0612-SF2","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ SF1","offer_id":43079070777387,"sku":"HOM-0711-SF1","price":369.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ SF2","offer_id":43079070810155,"sku":"HOM-0712-SF2","price":452.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ SF1","offer_id":43079070908459,"sku":"HOM-0811-SF1","price":372.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ SF2","offer_id":43079070941227,"sku":"HOM-0812-SF2","price":460.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ SF1","offer_id":43079071039531,"sku":"HOM-0911-SF1","price":383.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ SF2","offer_id":43079071072299,"sku":"HOM-0912-SF2","price":465.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_92_7e73faad-192c-40b7-bd14-e45db1c8d48b.png?v=1775771670"},{"product_id":"mac-terminating-end-fresh-air-damper-24vac","title":"MAC Motorized Fresh Air Damper, CSA Certified, Terminating End, 24 Vac, 4\"–9\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.mac-desc *{box-sizing:border-box;margin:0;padding:0;}.mac-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.mac-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.mac-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.mac-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.mac-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.mac-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.mac-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.mac-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.mac-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.mac-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.mac-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.mac-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.mac-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.mac-desc__compare-card--red{border-top:3px solid #C8102E;}.mac-desc__compare-card--navy{border-top:3px solid #001F3F;}.mac-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:700;color:#001F3F;margin-bottom:8px;}.mac-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.mac-desc__compare-item:last-child{margin-bottom:0;}.mac-desc__compare-dot{font-size:13px;font-weight:700;flex-shrink:0;line-height:1.5;}.mac-desc__compare-dot--red{color:#C8102E;}.mac-desc__compare-dot--navy{color:#001F3F;}.mac-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.mac-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.mac-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.mac-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.mac-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.mac-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.mac-desc__spec--highlight .mac-desc__spec-label{color:rgba(255,255,255,0.5);}.mac-desc__spec--highlight .mac-desc__spec-value{color:#FFFFFF;}.mac-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.mac-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.mac-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.mac-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"mac-desc\"\u003e\n\u003cp class=\"mac-desc__intro\"\u003eCSA-certified motorized fresh air damper that installs at the exterior wall penetration: hood and damper combined in one unit. No separate exterior hood required. One wall opening, one CSA-certified assembly, one control point. 24 Vac spring return, 4\"–9\", PO or PC action.\u003c\/p\u003e\n\u003cdiv class=\"mac-desc__bullets\"\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003eSeals at the building wall\u003c\/strong\u003e: no passive hood opening exposed to outdoor air between ventilation cycles; no cold air column sitting in the duct run\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003eOne unit replaces two\u003c\/strong\u003e: eliminates the separate exterior hood and inline damper that a standard HAC + OOH installation requires\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003eSame stall-protected Hoyme spring motor drive\u003c\/strong\u003e: nylon bearings, engineered for freeze-thaw cycling and outdoor temperature exposure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch and relay available\u003c\/strong\u003e: all factory-installed; confirm the action at order, although it can be converted in the field using the Hoyme conversion procedure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__bullet\"\u003e\n\u003cspan class=\"mac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"mac-desc__bullet-text\"\u003e\u003cstrong\u003eMAC-L available\u003c\/strong\u003e: factory-insulated body for cold climate installs where condensation on the damper body is a concern; specify at order\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is set at the factory. It can be converted in the field using the Hoyme conversion procedure, but ordering the right action saves a service call. Power Open (PO) is correct for the vast majority of fresh air intake and make-up air applications: the duct seals when the system is off. Power Close (PC) is used only when fail-open on power loss is required by the system design.\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare\"\u003e\n\u003cdiv class=\"mac-desc__compare-card mac-desc__compare-card--red\"\u003e\n\u003cdiv class=\"mac-desc__compare-title\"\u003eChoose MAC when…\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eDamper at the exterior wall penetration is preferred\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eSingle unit covers both termination and control\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eTightest possible exterior air seal is a priority\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eRetrofit where adding a second interior unit is impractical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-card mac-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"mac-desc__compare-title\"\u003eChoose HAC + OOH when…\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eDamper needs to be in the duct run, accessible indoors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eSeparate exterior hood already part of the design\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eSizes above 9\" required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__compare-item\"\u003e\n\u003cspan class=\"mac-desc__compare-dot mac-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"mac-desc__compare-text\"\u003eInterior control point preferred for new construction\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__specs\"\u003e\n\u003cdiv class=\"mac-desc__spec mac-desc__spec--highlight\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eKey Advantage\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003eSeals at the wall, no open hood between cycles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec\"\u003e\n\u003cdiv class=\"mac-desc__spec-label\"\u003eInsulated version\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__spec-value\"\u003eMAC-L: specify at order\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__note\"\u003e\n\u003cstrong\u003eNeed an ADP relay adaptor?\u003c\/strong\u003e To interlock the MAC with the furnace fan, use the ADP-0241-05A (24 Vac ventilation switch) or ADP-1101-05A (120 Vac exhaust fan switch). Both open the damper and start the furnace fan together, with no end switch required. Where an exhaust fan must wait until the damper proves open, use a TPX proving adaptor and order the SPO or SPC variant.\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"mac-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"mac-desc__warranty-sub\"\u003eMade in Canada  ·  40+ years field-proven in Canadian climates\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079204765739,"sku":"MAC-0410-OPO","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079204798507,"sku":"MAC-0410-SPO","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079208796203,"sku":"MAC-0411-OPO","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079208828971,"sku":"MAC-0411-SPO","price":298.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079204831275,"sku":"MAC-0410-OPC","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079204864043,"sku":"MAC-0410-SPC","price":257.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079208861739,"sku":"MAC-0411-OPC","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079208894507,"sku":"MAC-0411-SPC","price":298.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079204896811,"sku":"MAC-0510-OPO","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079204929579,"sku":"MAC-0510-SPO","price":261.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079208927275,"sku":"MAC-0511-OPO","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079208960043,"sku":"MAC-0511-SPO","price":300.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079204962347,"sku":"MAC-0510-OPC","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079204995115,"sku":"MAC-0510-SPC","price":261.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079208992811,"sku":"MAC-0511-OPC","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079209025579,"sku":"MAC-0511-SPC","price":300.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205027883,"sku":"MAC-0610-OPO","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079205060651,"sku":"MAC-0610-SPO","price":265.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079209058347,"sku":"MAC-0611-OPO","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079209091115,"sku":"MAC-0611-SPO","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205093419,"sku":"MAC-0610-OPC","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079205126187,"sku":"MAC-0610-SPC","price":265.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079209123883,"sku":"MAC-0611-OPC","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079209156651,"sku":"MAC-0611-SPC","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205158955,"sku":"MAC-0710-OPO","price":234.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079205191723,"sku":"MAC-0710-SPO","price":270.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079209189419,"sku":"MAC-0711-OPO","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079209222187,"sku":"MAC-0711-SPO","price":311.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205224491,"sku":"MAC-0710-OPC","price":234.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079205257259,"sku":"MAC-0710-SPC","price":270.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079209254955,"sku":"MAC-0711-OPC","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079209287723,"sku":"MAC-0711-SPC","price":311.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205290027,"sku":"MAC-0810-OPO","price":242.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079205322795,"sku":"MAC-0810-SPO","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079209320491,"sku":"MAC-0811-OPO","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079209353259,"sku":"MAC-0811-SPO","price":319.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205355563,"sku":"MAC-0810-OPC","price":242.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079205388331,"sku":"MAC-0810-SPC","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079209386027,"sku":"MAC-0811-OPC","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079209418795,"sku":"MAC-0811-SPC","price":319.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205421099,"sku":"MAC-0910-OPO","price":248.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079205453867,"sku":"MAC-0910-SPO","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079209451563,"sku":"MAC-0911-OPO","price":298.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43079209484331,"sku":"MAC-0911-SPO","price":325.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079205486635,"sku":"MAC-0910-OPC","price":248.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079205519403,"sku":"MAC-0910-SPC","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079209517099,"sku":"MAC-0911-OPC","price":298.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43079209549867,"sku":"MAC-0911-SPC","price":325.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_92.png?v=1775771567"},{"product_id":"hac-inline-motorized-air-damper-24vac","title":"HAC Motorized Inline Air Damper, CSA Certified, 24 Vac, 2\"–9\", Spring Return","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hac-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n\n  .hac-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hac-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n\n  .hac-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\u003c\/style\u003e\n\u003cdiv class=\"hac-desc\"\u003e\n\u003cp class=\"hac-desc__intro\"\u003eThe HAC is a 24 Vac motorized inline damper for fresh air intake, make-up air, HRV\/ERV duct control and zone control, and the most specified damper in the Hoyme lineup. Canada\/USA CSA certified, spring return, in round duct sizes from 2\" to 9\". Installed on ventilation code compliance jobs across Canada and the US.\u003c\/p\u003e\n\u003cdiv class=\"hac-desc__bullets\"\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003eStall-protected motor\u003c\/strong\u003e: holds against ice and elevated static pressure without tripping or leaving the blade in an unknown position\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e, 2\" to 9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action\u003c\/strong\u003e: confirm before ordering. The action can be converted in the field using the Hoyme conversion procedure, but getting it right at order saves a service call\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch\u003c\/strong\u003e: confirms blade position; required for proving ADP adaptors (TPX models) and gas dryer RADPs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003eRelay\u003c\/strong\u003e: switched output when damper opens; use to trigger furnace fan or secondary device (not available on 2\" and 3\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__bullet\"\u003e\n\u003cspan class=\"hac-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac-desc__bullet-text\"\u003e\u003cstrong\u003eReplacement parts stocked\u003c\/strong\u003e: motor kits, microswitch kits, spring return kits at your wholesaler; a motor failure does not mean a full damper replacement\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is set at the factory. If it needs to change, the HAC can be converted in the field by removing the motor, reversing the spring plate and remounting the drive, following the Hoyme conversion procedure. PO (power open) is correct for the vast majority of fresh air intake and make-up air applications, because the duct seals when the system is off. PC (power close) is used only when the system design requires the damper to fail open on power loss.\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__specs\"\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003e2\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eDrive\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003eStall-protected Hoyme spring motor\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec\"\u003e\n\u003cdiv class=\"hac-desc__spec-label\"\u003eRelay available\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__spec-value\"\u003e4\"–9\" only\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__note\"\u003e\n\u003cstrong\u003eInterlocking with the furnace fan?\u003c\/strong\u003e Use the ADP-0241-05A (24 Vac ventilation switch) or ADP-1101-05A (120 Vac exhaust fan switch) with an OPO or OPC variant; both open the damper and start the furnace fan together. Where an exhaust fan must wait until the damper proves open, use a TPX proving adaptor with the SPO or SPC variant. See the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP series\u003c\/a\u003e for the correct model for your application.\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__warranty\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"flex-shrink: 0;\"\u003e\n      \u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n      \u003cpath d=\"M9 12l2 2 4-4\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac-desc__warranty-sub\"\u003eMade in Canada · 40+ years field-proven in Canadian climates\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Hoyme Manufacturing","offers":[{"title":"2\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079378468907,"sku":"HAC-0210-OPO","price":196.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079378501675,"sku":"HAC-0210-SPO","price":222.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079378599979,"sku":"HAC-0210-OPC","price":196.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079378632747,"sku":"HAC-0210-SPC","price":222.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079378731051,"sku":"HAC-0310-OPO","price":196.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Open (PO) 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Switch","offer_id":43079380271147,"sku":"HAC-0811-SPC","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43079380303915,"sku":"HAC-0910-OPO","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43079380336683,"sku":"HAC-0910-SPO","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43079380369451,"sku":"HAC-0911-OPO","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Realy + End Switch","offer_id":43079380402219,"sku":"HAC-0911-SPO","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43079380434987,"sku":"HAC-0910-OPC","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43079380467755,"sku":"HAC-0910-SPC","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43079380500523,"sku":"HAC-0911-OPC","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Realy + End Switch","offer_id":43079380533291,"sku":"HAC-0911-SPC","price":278.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_90.png?v=1775771249"},{"product_id":"hac-12l-insulated-inline-damper-120vac","title":"HAC-L Insulated Inline Fresh Air Damper, CSA Certified, 24 Vac, 2\"–9\", Factory-Insulated Body","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hacl-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hacl-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hacl-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hacl-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hacl-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hacl-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hacl-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hacl-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hacl-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hacl-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hacl-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hacl-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n\n  .hacl-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hacl-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hacl-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hacl-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hacl-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hacl-desc__spec--highlight .hacl-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hacl-desc__spec--highlight .hacl-desc__spec-value { color: #FFFFFF; }\n\n  .hacl-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hacl-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hacl-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\u003c\/style\u003e\n\u003cdiv class=\"hacl-desc\"\u003e\n\u003cp class=\"hacl-desc__intro\"\u003eFactory-insulated motorized inline fresh air damper for cold climate installations: unconditioned spaces, crawlspaces, or any location where the damper body is exposed to temperatures that cause condensation. Same stall-protected Hoyme drive as the standard HAC. CSA certified. Sizes 2\"–9\".\u003c\/p\u003e\n\u003cdiv class=\"hacl-desc__bullets\"\u003e\n\u003cdiv class=\"hacl-desc__bullet\"\u003e\n\u003cspan class=\"hacl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacl-desc__bullet-text\"\u003e\u003cstrong\u003eFactory insulation: applied before assembly\u003c\/strong\u003e. Covers the actuator housing, motor lead exits, and collar joint where field-wrapping fails first\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__bullet\"\u003e\n\u003cspan class=\"hacl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacl-desc__bullet-text\"\u003e\u003cstrong\u003eSame drive as standard HAC\u003c\/strong\u003e: Hoyme 24 Vac spring return, stall-protected, nylon bearings, Canada\/USA CSA certified\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__bullet\"\u003e\n\u003cspan class=\"hacl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacl-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action\u003c\/strong\u003e: confirm before ordering; the action can be converted in the field using the Hoyme conversion procedure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__bullet\"\u003e\n\u003cspan class=\"hacl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacl-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and relay available\u003c\/strong\u003e: same options as standard HAC; relay not available on 2\" and 3\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__bullet\"\u003e\n\u003cspan class=\"hacl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacl-desc__bullet-text\"\u003e\u003cstrong\u003eReplacement parts stocked\u003c\/strong\u003e: motor kits, microswitch kits, spring return kits at your wholesaler\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__warning\"\u003e\n\u003cstrong\u003eThe HAC-L insulates the damper body only.\u003c\/strong\u003e The duct run from the exterior penetration to the HAC-L still requires insulation per code. If the damper is in conditioned mechanical space with no condensation risk, the standard HAC is sufficient and less expensive.\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__specs\"\u003e\n\u003cdiv class=\"hacl-desc__spec hacl-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003eInsulation\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003eFactory, not field-wrapped\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003e2\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec\"\u003e\n\u003cdiv class=\"hacl-desc__spec-label\"\u003e120 Vac version\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__spec-value\"\u003eSee HAC-12L\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__note\"\u003e\n\u003cstrong\u003eInterlocking with the furnace fan?\u003c\/strong\u003e Use the ADP-0241-05A (24 Vac ventilation switch) or ADP-1101-05A (120 Vac exhaust fan switch) with an OPO or OPC variant; both open the damper and start the furnace fan together. Where an exhaust fan must wait until the damper proves open, use a TPX proving adaptor with the SPO or SPC variant. See the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP series\u003c\/a\u003e for the correct model for your application.\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hacl-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hacl-desc__warranty-sub\"\u003eMade in Canada · Built for Canadian winters\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Hoyme Manufacturing","offers":[{"title":"2\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43080244559915,"sku":"HAC-0210-OPO-L","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43080244592683,"sku":"HAC-0210-SPO-L","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43080244690987,"sku":"HAC-0210-OPC-L","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43080244723755,"sku":"HAC-0210-SPC-L","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43080244822059,"sku":"HAC-0310-OPO-L","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power 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Relay)","offer_id":43080246165547,"sku":"HAC-0810-SPO-L","price":233.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43080246198315,"sku":"HAC-0811-OPO-L","price":255.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43080246231083,"sku":"HAC-0811-SPO-L","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43080246263851,"sku":"HAC-0810-OPC-L","price":206.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43080246296619,"sku":"HAC-0810-SPC-L","price":233.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43080246329387,"sku":"HAC-0811-OPC-L","price":255.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43080246362155,"sku":"HAC-0811-SPC-L","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43080246394923,"sku":"HAC-0910-OPO-L","price":209.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43080246427691,"sku":"HAC-0910-SPO-L","price":237.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43080246460459,"sku":"HAC-0911-OPO-L","price":258.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43080246493227,"sku":"HAC-0911-SPO-L","price":287.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43080246525995,"sku":"HAC-0910-OPC-L","price":209.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43080246558763,"sku":"HAC-0910-SPC-L","price":237.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43080246591531,"sku":"HAC-0911-OPC-L","price":258.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43080246624299,"sku":"HAC-0911-SPC-L","price":287.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Hoyme-HAC-insulated.jpg?v=1771138872"},{"product_id":"hac-h-heat-bypass-inline-damper-24vac","title":"HAC-H Heat Bypass Inline Damper, CSA Certified, 24 Vac, 2\"–9\", 10% Bypass","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hach-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hach-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hach-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hach-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hach-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hach-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hach-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hach-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hach-desc__critical { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hach-desc__critical strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hach-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hach-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hach-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hach-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n\n  .hach-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hach-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hach-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hach-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hach-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 700; color: #001F3F; margin-bottom: 8px; }\n  .hach-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hach-desc__compare-item:last-child { margin-bottom: 0; }\n  .hach-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hach-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hach-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hach-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hach-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hach-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hach-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hach-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hach-desc__spec--red .hach-desc__spec-label { color: #C8102E; }\n  .hach-desc__spec--red .hach-desc__spec-value { color: #C8102E; }\n  .hach-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hach-desc__spec--highlight .hach-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hach-desc__spec--highlight .hach-desc__spec-value { color: #FFFFFF; }\n\n  .hach-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hach-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hach-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\n  @media (max-width: 480px) {\n    .hach-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"hach-desc\"\u003e\n\u003cp class=\"hach-desc__intro\"\u003eCSA-certified motorized inline zone damper for hot air supply duct control where full shutoff causes heat buildup, high-limit trips, or thermal stress. A 10% bypass is machined directly into the blade at the factory: permanent, consistent, always present. Same stall-protected Hoyme 24 Vac spring return drive as the standard HAC. Sizes 2\"–9\".\u003c\/p\u003e\n\u003cdiv class=\"hach-desc__critical\"\u003e\n\u003cstrong\u003eNot for fresh air, make-up air, or ventilation applications.\u003c\/strong\u003e The 10% bypass is permanent and cannot be disabled. On a fresh air or outdoor air duct, outdoor air infiltrates the building continuously through the bypass whenever the damper is commanded closed, every hour, every day, every season. If a HAC-H has been installed on a fresh air application in error, it must be replaced with a standard HAC.\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullets\"\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003e10% bypass machined into the blade at the factory\u003c\/strong\u003e: not a field modification, not an adjustable insert, not removable; consistent on every unit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003ePrevents high-limit trips on single-speed furnaces\u003c\/strong\u003e: maintains minimum airflow through closed zones, relieving static pressure and keeping heat exchanger airflow above the trip threshold\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003eSame stall-protected Hoyme spring motor drive\u003c\/strong\u003e: holds against elevated duct static pressure on pressurized zone systems without tripping\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch and relay available\u003c\/strong\u003e: all factory-installed; relay not available on 2\" and 3\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__bullet\"\u003e\n\u003cspan class=\"hach-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hach-desc__bullet-text\"\u003e\u003cstrong\u003eReplacement parts stocked\u003c\/strong\u003e: motor kits, microswitch kits, spring return kits at your wholesaler; drive services in place\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is set at the factory. If it needs to change, it can be converted in the field by removing the motor, reversing the spring plate, and remounting the drive, following the Hoyme conversion procedure. For most hot air zone control applications PO is correct: the zone opens when called and spring-closes when the call ends. PC is used only when the zone must fail open on power loss; confirm with the system designer before specifying PC on a zone damper.\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare\"\u003e\n\u003cdiv class=\"hach-desc__compare-card hach-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hach-desc__compare-title\"\u003eUse HAC-H when…\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eHot air supply duct zone control: single-speed furnace\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eClosing supply zones causes high-limit trips or heat buildup\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eMinimum airflow through all zones required regardless of call status\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eVariable speed furnace: bypass may still be preferred; confirm with system designer\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003e120 Vac site: see HAC-12H\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-card hach-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hach-desc__compare-title\"\u003eUse standard HAC when…\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eFresh air intake, make-up air, or ventilation: full shutoff required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eReturn air zone control: bypass not required on return side\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__compare-item\"\u003e\n\u003cspan class=\"hach-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hach-desc__compare-text\"\u003eHRV \/ ERV duct control: bypass allows reverse infiltration\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__specs\"\u003e\n\u003cdiv class=\"hach-desc__spec hach-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eBypass\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003e10%: factory machined, permanent\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003e2\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec hach-desc__spec--red\"\u003e\n\u003cdiv class=\"hach-desc__spec-label\"\u003eNot Suitable For\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__spec-value\"\u003eFresh air, make-up air, ventilation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__note\"\u003e\n\u003cstrong\u003e120 Vac site?\u003c\/strong\u003e The HAC-12H combines the 120 Vac built-in transformer with the same 10% bypass blade. Use HAC-12H when only 120 Vac is available at the damper location and hot air zone control with bypass is required.\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hach-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hach-desc__warranty-sub\"\u003eMade in Canada · CSA certified for Canadian and US installations\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"2\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081011888171,"sku":"HAC-0210-OPO-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081011920939,"sku":"HAC-0210-SPO-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012019243,"sku":"HAC-0210-OPC-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"2\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081012052011,"sku":"HAC-0210-SPC-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012150315,"sku":"HAC-0310-OPO-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081012183083,"sku":"HAC-0310-SPO-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012281387,"sku":"HAC-0310-OPC-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"3\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081012314155,"sku":"HAC-0310-SPC-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012412459,"sku":"HAC-0410-OPO-H","price":222.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081012445227,"sku":"HAC-0410-SPO-H","price":249.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081012477995,"sku":"HAC-0411-OPO-H","price":272.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ 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Open (PO) \/ End Switch (No Relay)","offer_id":43081012707371,"sku":"HAC-0510-SPO-H","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081012740139,"sku":"HAC-0511-OPO-H","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43081012772907,"sku":"HAC-0511-SPO-H","price":301.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012805675,"sku":"HAC-0510-OPC-H","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081012838443,"sku":"HAC-0510-SPC-H","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43081012871211,"sku":"HAC-0511-OPC-H","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43081012903979,"sku":"HAC-0511-SPC-H","price":301.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081012936747,"sku":"HAC-0610-OPO-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081012969515,"sku":"HAC-0610-SPO-H","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081013002283,"sku":"HAC-0611-OPO-H","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43081013035051,"sku":"HAC-0611-SPO-H","price":304.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013067819,"sku":"HAC-0610-OPC-H","price":228.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081013100587,"sku":"HAC-0610-SPC-H","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43081013133355,"sku":"HAC-0611-OPC-H","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43081013166123,"sku":"HAC-0611-SPC-H","price":304.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013198891,"sku":"HAC-0710-OPO-H","price":229.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081013231659,"sku":"HAC-0710-SPO-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081013264427,"sku":"HAC-0711-OPO-H","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43081013297195,"sku":"HAC-0711-SPO-H","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013329963,"sku":"HAC-0710-OPC-H","price":229.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081013362731,"sku":"HAC-0710-SPC-H","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43081013395499,"sku":"HAC-0711-OPC-H","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43081013428267,"sku":"HAC-0711-SPC-H","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013461035,"sku":"HAC-0810-OPO-H","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081013493803,"sku":"HAC-0810-SPO-H","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081013526571,"sku":"HAC-0811-OPO-H","price":279.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43081013559339,"sku":"HAC-0811-SPO-H","price":306.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013592107,"sku":"HAC-0810-OPC-H","price":231.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081013624875,"sku":"HAC-0810-SPC-H","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43081013657643,"sku":"HAC-0811-OPC-H","price":279.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43081013690411,"sku":"HAC-0811-SPC-H","price":306.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013723179,"sku":"HAC-0910-OPO-H","price":233.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43081013755947,"sku":"HAC-0910-SPO-H","price":262.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43081013788715,"sku":"HAC-0911-OPO-H","price":283.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43081013821483,"sku":"HAC-0911-SPO-H","price":309.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43081013854251,"sku":"HAC-0910-OPC-H","price":233.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43081013887019,"sku":"HAC-0910-SPC-H","price":262.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43081013919787,"sku":"HAC-0911-OPC-H","price":283.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43081013952555,"sku":"HAC-0911-SPC-H","price":309.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_89.png?v=1775771114"},{"product_id":"hac-f-motorized-flue-damper-24vac","title":"HAC-F Motorized Flue Damper, CSA Certified, Power Close \/ Spring Open, 4\"–9\", Relay and End Switch Included","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hacf-desc *{box-sizing:border-box;margin:0;padding:0;}.hacf-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hacf-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hacf-desc__critical{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacf-desc__critical strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hacf-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hacf-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hacf-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hacf-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacf-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hacf-desc__failsafe{background:#001F3F;border-radius:6px;padding:16px 20px;margin-bottom:20px;display:flex;align-items:flex-start;gap:14px;}.hacf-desc__failsafe-icon{flex-shrink:0;margin-top:2px;}.hacf-desc__failsafe-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;margin-bottom:4px;}.hacf-desc__failsafe-body{font-size:12.5px;color:rgba(255,255,255,0.7);font-family:'Open Sans',sans-serif;line-height:1.55;}.hacf-desc__sequence{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hacf-desc__sequence-step{display:flex;align-items:flex-start;gap:12px;background:#F3F6F8;border-radius:5px;padding:10px 14px;}.hacf-desc__sequence-num{min-width:24px;height:24px;background:#C8102E;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Montserrat',sans-serif;font-weight:700;font-size:11px;color:#FFFFFF;flex-shrink:0;}.hacf-desc__sequence-text{font-size:13px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.5;}.hacf-desc__sequence-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hacf-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hacf-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hacf-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hacf-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hacf-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hacf-desc__spec--highlight .hacf-desc__spec-label{color:rgba(255,255,255,0.5);}.hacf-desc__spec--highlight .hacf-desc__spec-value{color:#FFFFFF;}.hacf-desc__spec--green{background:#f0fdf4;border-color:#16a34a;}.hacf-desc__spec--green .hacf-desc__spec-label{color:#16a34a;}.hacf-desc__spec--green .hacf-desc__spec-value{color:#166534;}.hacf-desc__adp{background:#F3F6F8;border-radius:6px;padding:16px 18px;margin-bottom:20px;}.hacf-desc__adp-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#001F3F;margin-bottom:10px;}.hacf-desc__adp-row{display:flex;align-items:flex-start;gap:10px;padding:7px 0;border-bottom:1px solid #e2e8f0;}.hacf-desc__adp-row:last-child{border-bottom:none;}.hacf-desc__adp-appliance{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;flex:1;line-height:1.45;}.hacf-desc__adp-model{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:700;color:#C8102E;white-space:nowrap;flex-shrink:0;}.hacf-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacf-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hacf-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hacf-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hacf-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}\u003c\/style\u003e\n\u003cdiv class=\"hacf-desc\"\u003e\n\u003cp class=\"hacf-desc__intro\"\u003eCSA-certified motorized round flue control damper for fuel-burning appliance vent and flue runs, 4\"–9\". Power Close \/ Spring Open on every unit: closes when powered, springs open on any power loss, keeping the flue clear when the electrical system fails. Relay and end switch included on every unit. Select size only.\u003c\/p\u003e\n\u003cdiv class=\"hacf-desc__critical\"\u003e\n\u003cstrong\u003eDo not substitute a standard HAC on a flue application.\u003c\/strong\u003e A standard HAC with Power Open \/ Spring Close action fails closed on power loss, sealing the flue while the appliance is firing. On a gas or oil appliance, a closed flue during operation creates carbon monoxide accumulation and back-draft risk. The HAC-F SPC-F actuator is selected specifically because it fails open. The flue is always clear on any power interruption.\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__bullets\"\u003e\n\u003cdiv class=\"hacf-desc__bullet\"\u003e\n\u003cspan class=\"hacf-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacf-desc__bullet-text\"\u003e\u003cstrong\u003eSpring Open fail-safe, always\u003c\/strong\u003e. If power is lost while the appliance is firing, the spring opens the damper and the flue is clear; no control system, no signal, no electricity required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__bullet\"\u003e\n\u003cspan class=\"hacf-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacf-desc__bullet-text\"\u003e\u003cstrong\u003eRelay and end switch included on every unit\u003c\/strong\u003e: a flue damper without interlock capability is an incomplete safety installation; relay and end switch are not optional on the HAC-F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__bullet\"\u003e\n\u003cspan class=\"hacf-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacf-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified up to 12\"\u003c\/strong\u003e: the HAC-FS is not an acceptable substitute on code-required applications; AHJ will verify certification\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__bullet\"\u003e\n\u003cspan class=\"hacf-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacf-desc__bullet-text\"\u003e\u003cstrong\u003eSelect size only\u003c\/strong\u003e: 4\" through 9\"; action, relay, and end switch are pre-configured on every unit; no configuration errors possible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__bullet\"\u003e\n\u003cspan class=\"hacf-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacf-desc__bullet-text\"\u003e\u003cstrong\u003eStall-protected Hoyme spring motor drive\u003c\/strong\u003e: nylon bearings; engineered for the mechanical stresses of a flue run application\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__failsafe\"\u003e\n\u003cdiv class=\"hacf-desc__failsafe-icon\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"22\" width=\"22\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hacf-desc__failsafe-title\"\u003eWhy Power Close \/ Spring Open, not Power Open \/ Spring Close\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__failsafe-body\"\u003eThe HAC-F is at rest in the spring-open position (flue clear) when there is no power. Between firing cycles, 24 Vac holds the damper closed to reduce standby heat loss. When the appliance calls to fire, power to the damper is cut and the spring opens it. If power is interrupted at any point, the spring immediately opens the damper. The fail-safe is always in the direction of a clear flue. A Power Open \/ Spring Close damper is the opposite. It fails closed, sealing the flue during a power interruption while the appliance may still be firing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-step\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-num\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-text\"\u003e\n\u003cstrong\u003eAppliance calls to fire\u003c\/strong\u003e: the thermostat calls for heat and the HAC-F relay cuts power to the damper motor\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-step\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-num\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-text\"\u003e\n\u003cstrong\u003eHAC-F de-energizes\u003c\/strong\u003e: spring opens the damper; flue path is clear\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-step\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-num\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-text\"\u003e\n\u003cstrong\u003eEnd switch confirms open position\u003c\/strong\u003e: the end switch, in series with the thermostat wire to W, closes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-step\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-num\"\u003e4\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-text\"\u003e\n\u003cstrong\u003eAppliance fires\u003c\/strong\u003e: if the end switch does not close, the appliance stays off\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-step\"\u003e\n\u003cdiv class=\"hacf-desc__sequence-num\"\u003e5\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__sequence-text\"\u003e\n\u003cstrong\u003eAppliance call ends\u003c\/strong\u003e: 24 Vac powers the HAC-F closed to reduce standby heat loss through the flue\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__specs\"\u003e\n\u003cdiv class=\"hacf-desc__spec hacf-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eFail-Safe Direction\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003eSpring Open: flue always clear on power loss\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003ePower Close \/ Spring Open (SPC-F)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec hacf-desc__spec--green\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eIncluded\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003eRelay + end switch, every unit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec\"\u003e\n\u003cdiv class=\"hacf-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__spec-value\"\u003eCSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__adp\"\u003e\n\u003cdiv class=\"hacf-desc__adp-title\"\u003eRelay adaptor: only if the safety circuit is not 24 Vac\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__adp-row\"\u003e\n\u003cspan class=\"hacf-desc__adp-appliance\"\u003eGas furnace: millivolt \/ standing pilot system (250mVdc–100Vdc)\u003c\/span\u003e \u003cspan class=\"hacf-desc__adp-model\"\u003eADP-0MV2-S5A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__adp-row\"\u003e\n\u003cspan class=\"hacf-desc__adp-appliance\"\u003eGas furnace or boiler, 24 Vac system\u003c\/span\u003e \u003cspan class=\"hacf-desc__adp-model\"\u003eNo adaptor, wires direct\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__adp-row\"\u003e\n\u003cspan class=\"hacf-desc__adp-appliance\"\u003eBoiler or tankless water heater, 110 Vac system\u003c\/span\u003e \u003cspan class=\"hacf-desc__adp-model\"\u003eADP-1102-S5A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__note\"\u003e\n\u003cstrong\u003eNeed sizes 10\"–30\"?\u003c\/strong\u003e See the HAC-F Large Diameter listing: Belimo TFB24 actuator, same SPC-F spring-open fail-safe, for commercial flue applications. For non-permitted applications where CSA certification is genuinely not required by the AHJ, see the HAC-FS. Never substitute HAC-FS on a code-required installation.\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hacf-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hacf-desc__warranty-sub\"\u003eCSA certified · Made in Canada · Interlock required, always\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\"","offer_id":43081036300331,"sku":"HAC-0411-SPC-F","price":318.0,"currency_code":"CAD","in_stock":true},{"title":"5\"","offer_id":43081036333099,"sku":"HAC-0511-SPC-F","price":319.0,"currency_code":"CAD","in_stock":true},{"title":"6\"","offer_id":43081036365867,"sku":"HAC-0611-SPC-F","price":321.0,"currency_code":"CAD","in_stock":true},{"title":"7\"","offer_id":43081036398635,"sku":"HAC-0711-SPC-F","price":322.0,"currency_code":"CAD","in_stock":true},{"title":"8\"","offer_id":43081036431403,"sku":"HAC-0811-SPC-F","price":323.0,"currency_code":"CAD","in_stock":true},{"title":"9\"","offer_id":43081036464171,"sku":"HAC-0911-SPC-F","price":327.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_88.png?v=1775770945"},{"product_id":"hac-f-large-motorized-flue-damper-24vac-10-30in","title":"HAC-F Large Diameter Motorized Flue Damper, Power Close \/ Spring Open, 10\"–30\", Belimo TFB24","description":"\u003cstyle\u003e.hacfl-desc *{box-sizing:border-box;margin:0;padding:0;}.hacfl-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hacfl-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hacfl-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hacfl-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hacfl-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hacfl-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfl-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hacfl-desc__critical{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfl-desc__critical strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hacfl-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfl-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hacfl-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hacfl-desc__table-wrap{overflow-x:auto;margin-bottom:20px;}.hacfl-desc__table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hacfl-desc__table th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hacfl-desc__table td{padding:7px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hacfl-desc__table tr:last-child td{border-bottom:none;}.hacfl-desc__table tr:nth-child(even) td{background:#f8fafc;}.hacfl-desc__table td:first-child{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hacfl-desc__table-note{font-size:11.5px;color:#718096;font-family:'Open Sans',sans-serif;margin-top:6px;font-style:italic;}.hacfl-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hacfl-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hacfl-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hacfl-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hacfl-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hacfl-desc__spec--highlight .hacfl-desc__spec-label{color:rgba(255,255,255,0.5);}.hacfl-desc__spec--highlight .hacfl-desc__spec-value{color:#FFFFFF;}.hacfl-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hacfl-desc__spec--amber .hacfl-desc__spec-label{color:#92400e;}.hacfl-desc__spec--amber .hacfl-desc__spec-value{color:#92400e;}.hacfl-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hacfl-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hacfl-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}\u003c\/style\u003e\n\u003cdiv class=\"hacfl-desc\"\u003e\n\u003cp class=\"hacfl-desc__intro\"\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"hacfl-desc__intro\"\u003eMotorized flue damper for commercial and large residential vent runs from 10\" to 30\". Power Close \/ Spring Open fail-safe: the flue path is always clear on any power interruption. Belimo TFB24 actuator. Relay and end switch included on every unit. Select diameter only.\u003c\/p\u003e\n\u003cdiv class=\"hacfl-desc__critical\"\u003e\n\u003cstrong\u003eAppliance interlock is required on every installation.\u003c\/strong\u003e The appliance must not fire until the end switch confirms the HAC-F is in the spring-open (flue clear) position. Do not operate a motorized flue damper without interlock. This is a safety requirement regardless of appliance size or application type.\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullets\"\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eSpring Open fail-safe\u003c\/strong\u003e: flue path is clear on any power loss; spring operates without electricity, without control signal, without BMS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB24 actuator\u003c\/strong\u003e: rated for the torque demands of 10\"–30\" blade areas under commercial flue static pressure and temperature conditions\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eRelay and end switch included on every unit\u003c\/strong\u003e: no configuration required; relay feeds ADP or BMS, end switch confirms spring-open position before firing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB24 field-replaceable\u003c\/strong\u003e: stocked through Belimo distributors; actuator replaces without removing the damper body from the flue run\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eCSA certified to 12\"\u003c\/strong\u003e: for 14\"–30\", confirm AHJ acceptance before ordering on code-required applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__bullet\"\u003e\n\u003cspan class=\"hacfl-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfl-desc__bullet-text\"\u003e\u003cstrong\u003eNeed 4\"–9\"?\u003c\/strong\u003e Use the standard \u003ca href=\"\/products\/hac-f-motorized-flue-damper-24vac\" style=\"color: #c8102e; text-decoration: none; font-weight: 600;\"\u003eHAC-F with Hoyme drive\u003c\/a\u003e; same SPC-F spring-open fail-safe behavior\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__specs\"\u003e\n\u003cdiv class=\"hacfl-desc__spec hacfl-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003eSpring Open: flue clear on power loss\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003e10\"–30\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003eBelimo TFB24, 24 Vac\/dc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003ePower Close \/ Spring Open\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eIncluded\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003eRelay + end switch on every unit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec hacfl-desc__spec--amber\"\u003e\n\u003cdiv class=\"hacfl-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__spec-value\"\u003eCertified to 12\": confirm AHJ for 14\"–30\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__table-wrap\"\u003e\n\u003ctable class=\"hacfl-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003cth\u003eRelay\u003c\/th\u003e\n\u003cth\u003eEnd Switch\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1041-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1241-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1441-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1641-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1841-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2041-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2241-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2441-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e26\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2641-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2841-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30\"\u003c\/td\u003e\n\u003ctd\u003eHAC-3041-SPC-F\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"hacfl-desc__table-note\"\u003eSelect diameter only: all other options are identical on every unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__note\"\u003e\n\u003cstrong\u003eNeed an ADP relay adaptor?\u003c\/strong\u003e Not on a 24 Vac appliance. The HAC-F end switch wires in series with the thermostat wire to \"W\", so the appliance fires only after the damper has opened. For millivolt safety systems use \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-0MV2-S5A\u003c\/a\u003e. For 120 Vac safety controls, call technical support at 1-800-661-7382 to confirm the adaptor.\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__warranty\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"flex-shrink: 0;\"\u003e\n\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M9 12l2 2 4-4\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hacfl-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hacfl-desc__warranty-sub\"\u003eMade in Canada  ·  Belimo TFB24 field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"10\"","offer_id":43081398517803,"sku":"HAC-1041-SPC-F","price":759.0,"currency_code":"CAD","in_stock":true},{"title":"12\"","offer_id":43081398550571,"sku":"HAC-1241-SPC-F","price":761.0,"currency_code":"CAD","in_stock":true},{"title":"14\"","offer_id":43081398583339,"sku":"HAC-1441-SPC-F","price":813.0,"currency_code":"CAD","in_stock":true},{"title":"16\"","offer_id":43081398616107,"sku":"HAC-1641-SPC-F","price":814.0,"currency_code":"CAD","in_stock":true},{"title":"18\"","offer_id":43081398648875,"sku":"HAC-1841-SPC-F","price":853.0,"currency_code":"CAD","in_stock":true},{"title":"20\"","offer_id":43081398681643,"sku":"HAC-2041-SPC-F","price":888.0,"currency_code":"CAD","in_stock":true},{"title":"22\"","offer_id":43081398714411,"sku":"HAC-2241-SPC-F","price":1168.0,"currency_code":"CAD","in_stock":true},{"title":"24\"","offer_id":43081398747179,"sku":"HAC-2441-SPC-F","price":1551.0,"currency_code":"CAD","in_stock":true},{"title":"26\"","offer_id":43081398779947,"sku":"HAC-2641-SPC-F","price":1942.0,"currency_code":"CAD","in_stock":true},{"title":"28\"","offer_id":43081398812715,"sku":"HAC-2841-SPC-F","price":2332.0,"currency_code":"CAD","in_stock":true},{"title":"30\"","offer_id":43081398845483,"sku":"HAC-3041-SPC-F","price":2606.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_87_5f9e8a2f-d76c-439f-b26a-fd423fa54528.png?v=1775770815"},{"product_id":"hac-fs-flue-special-damper-24vac","title":"HAC-FS Motorized Flue Special Damper, NOT CSA Certified, 14\"–30\", Belimo TFB24","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hacfs-desc *{box-sizing:border-box;margin:0;padding:0;}.hacfs-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hacfs-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hacfs-desc__nocert{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 18px;margin-bottom:20px;}.hacfs-desc__nocert-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#C8102E;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:6px;}.hacfs-desc__nocert-body{font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfs-desc__nocert-body strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hacfs-desc__critical{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfs-desc__critical strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hacfs-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfs-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hacfs-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hacfs-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hacfs-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hacfs-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hacfs-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hacfs-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hacfs-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hacfs-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hacfs-desc__compare-card--navy{border-top:3px solid #001F3F;}.hacfs-desc__compare-card--red{border-top:3px solid #C8102E;}.hacfs-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:700;color:#001F3F;margin-bottom:8px;}.hacfs-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.hacfs-desc__compare-item:last-child{margin-bottom:0;}.hacfs-desc__compare-dot--red{color:#C8102E;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hacfs-desc__compare-dot--navy{color:#001F3F;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hacfs-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hacfs-desc__table-wrap{overflow-x:auto;margin-bottom:20px;}.hacfs-desc__table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hacfs-desc__table th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hacfs-desc__table td{padding:7px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hacfs-desc__table tr:last-child td{border-bottom:none;}.hacfs-desc__table tr:nth-child(even) td{background:#f8fafc;}.hacfs-desc__table td:first-child{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hacfs-desc__table td:nth-child(2){font-family:'Montserrat',sans-serif;font-size:11.5px;font-weight:600;}.hacfs-desc__table-note{font-size:11.5px;color:#718096;font-family:'Open Sans',sans-serif;margin-top:6px;font-style:italic;}.hacfs-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hacfs-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hacfs-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hacfs-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hacfs-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hacfs-desc__spec--red .hacfs-desc__spec-label{color:#C8102E;}.hacfs-desc__spec--red .hacfs-desc__spec-value{color:#C8102E;}.hacfs-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hacfs-desc__spec--highlight .hacfs-desc__spec-label{color:rgba(255,255,255,0.5);}.hacfs-desc__spec--highlight .hacfs-desc__spec-value{color:#FFFFFF;}.hacfs-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hacfs-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hacfs-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hacfs-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hacfs-desc\"\u003e\n\u003cdiv class=\"hacfs-desc__nocert\"\u003e\n\u003cdiv class=\"hacfs-desc__nocert-title\"\u003e⚠ NOT CSA CERTIFIED: Read Before Ordering\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__nocert-body\"\u003eThe HAC-FS is not CSA certified. Hoyme flue dampers are CSA certified up to 12\" only, so no Hoyme flue damper in the 14\" to 30\" range is certified. If your project requires a CSA-certified flue damper, \u003cstrong\u003euse an HAC-F of 12\" or smaller\u003c\/strong\u003e. For larger flues, confirm acceptance with the AHJ in writing before ordering.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"hacfs-desc__intro\"\u003eSame hardware as the HAC-F Large Diameter: Belimo TFB24 actuator, Power Close \/ Spring Open fail-safe, relay and end switch included on every unit. The single difference is CSA certification: the HAC-FS does not carry it. For applications where certification is genuinely not required by the AHJ. Available in even sizes 14\"–30\".\u003c\/p\u003e\n\u003cdiv class=\"hacfs-desc__compare\"\u003e\n\u003cdiv class=\"hacfs-desc__compare-card hacfs-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hacfs-desc__compare-title\"\u003eUse HAC-FS when…\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eAHJ has confirmed no certification requirement, ideally in writing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003ePrivate or industrial facility, no AHJ verification or inspection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eNon-permitted replacement of existing non-certified equipment\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eCertification requirement has been confirmed as not applicable, in writing if possible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-card hacfs-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hacfs-desc__compare-title\"\u003eUse HAC-F (12\" or smaller) when…\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eAHJ requires CSA certification on flue damper\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eBuilding permit or inspection will verify equipment\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eResidential or commercial permitted installation\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__compare-item\"\u003e\n\u003cspan class=\"hacfs-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hacfs-desc__compare-text\"\u003eUnsure whether certification is required: \u003cstrong\u003econfirm with the AHJ in writing\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__critical\"\u003e\n\u003cstrong\u003eAppliance interlock is required regardless of certification status.\u003c\/strong\u003e The appliance must not fire until the end switch confirms the HAC-FS is in the spring-open (flue clear) position. Operating a motorized flue damper without interlock is a safety risk regardless of whether the product carries a certification mark. Relay and end switch are included on every unit. Use them.\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__bullets\"\u003e\n\u003cdiv class=\"hacfs-desc__bullet\"\u003e\n\u003cspan class=\"hacfs-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfs-desc__bullet-text\"\u003e\u003cstrong\u003eSame hardware as HAC-F Large Diameter\u003c\/strong\u003e: Belimo TFB24 actuator, Power Close \/ Spring Open fail-safe, relay and end switch on every unit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__bullet\"\u003e\n\u003cspan class=\"hacfs-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfs-desc__bullet-text\"\u003e\u003cstrong\u003eSpring Open fail-safe\u003c\/strong\u003e: flue path is clear on any power loss; spring operates without electricity, without control signal, without BMS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__bullet\"\u003e\n\u003cspan class=\"hacfs-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfs-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB24 field-replaceable\u003c\/strong\u003e: stocked through Belimo distributors; actuator replaces without removing the damper body\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__bullet\"\u003e\n\u003cspan class=\"hacfs-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfs-desc__bullet-text\"\u003e\u003cstrong\u003eStarts at 14\"\u003c\/strong\u003e: the 10\" and 12\" sizes are only available as the certified HAC-F; HAC-FS covers 14\"–30\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__bullet\"\u003e\n\u003cspan class=\"hacfs-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hacfs-desc__bullet-text\"\u003e\u003cstrong\u003eSelect diameter only\u003c\/strong\u003e: all other options identical on every unit; no configuration required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__specs\"\u003e\n\u003cdiv class=\"hacfs-desc__spec hacfs-desc__spec--red\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003eNOT CSA CERTIFIED\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003e14\"–30\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003eBelimo TFB24, 24 Vac\/dc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec hacfs-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003eSpring Open: flue clear on power loss\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003ePower Close \/ Spring Open\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec\"\u003e\n\u003cdiv class=\"hacfs-desc__spec-label\"\u003eIncluded\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__spec-value\"\u003eRelay + end switch on every unit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__table-wrap\"\u003e\n\u003ctable class=\"hacfs-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eCSA Status\u003c\/th\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003cth\u003eRelay\u003c\/th\u003e\n\u003cth\u003eEnd Switch\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1441-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1641-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1841-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2041-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2241-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2441-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e26\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2641-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28\"\u003c\/td\u003e\n\u003ctd\u003eHAC-2841-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30\"\u003c\/td\u003e\n\u003ctd\u003eHAC-3041-SPCFS\u003c\/td\u003e\n\u003ctd\u003eNOT CERTIFIED\u003c\/td\u003e\n\u003ctd\u003ePC \/ Spring Open\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"hacfs-desc__table-note\"\u003eSelect diameter only: all other options identical on every unit. The 10\" and 12\" sizes are CSA certified and available as the HAC-F Large Diameter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__note\"\u003e\n\u003cstrong\u003eNeed an ADP relay adaptor?\u003c\/strong\u003e Interlock is required regardless of certification status. On a 24 Vac appliance no adaptor is needed: the end switch wires in series with the thermostat wire to \"W\". For millivolt safety systems use \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-0MV2-S5A\u003c\/a\u003e. For 120 Vac safety controls, call technical support at 1-800-661-7382. Need a certified 10\" or 12\"? See \u003ca href=\"\/products\/hac-f-large-motorized-flue-damper-24vac-10-30in\"\u003eHAC-F Large Diameter\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__warranty\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"flex-shrink: 0;\"\u003e\n\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M9 12l2 2 4-4\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hacfs-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hacfs-desc__warranty-sub\"\u003eSame hardware as HAC-F Large Diameter · Belimo TFB24 field-replaceable\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"14\"","offer_id":43082606673963,"sku":"HAC-1441-SPCFS","price":813.0,"currency_code":"CAD","in_stock":true},{"title":"16\"","offer_id":43082606706731,"sku":"HAC-1641-SPCFS","price":814.0,"currency_code":"CAD","in_stock":true},{"title":"18\"","offer_id":43082606739499,"sku":"HAC-1841-SPCFS","price":853.0,"currency_code":"CAD","in_stock":true},{"title":"20\"","offer_id":43082606772267,"sku":"HAC-2041-SPCFS","price":888.0,"currency_code":"CAD","in_stock":true},{"title":"22\"","offer_id":43082606805035,"sku":"HAC-2241-SPCFS","price":1168.0,"currency_code":"CAD","in_stock":true},{"title":"24\"","offer_id":43082606837803,"sku":"HAC-2441-SPCFS","price":1551.0,"currency_code":"CAD","in_stock":true},{"title":"26\"","offer_id":43082606870571,"sku":"HAC-2641-SPCFS","price":1942.0,"currency_code":"CAD","in_stock":true},{"title":"28\"","offer_id":43082606903339,"sku":"HAC-2841-SPCFS","price":2332.0,"currency_code":"CAD","in_stock":true},{"title":"30'","offer_id":43082606936107,"sku":"HAC-3041-SPCFS","price":2606.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Hoyme-hac-f-large-size-1_2fbb3c57-46b6-457e-802f-73f76d9a9bfd.jpg?v=1771257150"},{"product_id":"hac-e-motorized-elbow-damper-24vac","title":"HAC-E Motorized Elbow Damper, 24 Vac, 5\"–9\", Control Built Into the Elbow","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hace-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hace-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hace-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hace-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hace-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hace-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hace-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hace-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hace-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hace-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hace-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hace-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hace-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hace-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hace-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hace-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hace-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hace-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 700; color: #001F3F; margin-bottom: 8px; }\n  .hace-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hace-desc__compare-item:last-child { margin-bottom: 0; }\n  .hace-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hace-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hace-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hace-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hace-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hace-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hace-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hace-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hace-desc__spec--highlight .hace-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hace-desc__spec--highlight .hace-desc__spec-value { color: #FFFFFF; }\n  .hace-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hace-desc__spec--amber .hace-desc__spec-label { color: #92400e; }\n  .hace-desc__spec--amber .hace-desc__spec-value { color: #92400e; }\n\n  .hace-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hace-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hace-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\n  @media (max-width: 480px) {\n    .hace-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"hace-desc\"\u003e\n\u003cp class=\"hace-desc__intro\"\u003eMotorized elbow damper for round duct fresh air and ventilation control where space constraints prevent installing a standard inline damper in the straight duct run. The damper blade is integrated directly into the elbow fitting: 2-position open\/close control at the direction change, no straight duct sections required. Same stall-protected Hoyme 24 Vac spring return drive as the standard HAC. Sizes 5\"–9\".\u003c\/p\u003e\n\u003cdiv class=\"hace-desc__warning\"\u003e\n\u003cstrong\u003eSpecify the HAC-E only when the elbow is your only option.\u003c\/strong\u003e The standard HAC is always the preferred product when straight duct space is available: the actuator has clear service access and servicing is straightforward. On the HAC-E, the actuator is mounted on the elbow body itself and must be accessible after installation. Plan actuator clearance and service access at rough-in, before the space is closed up.\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__bullets\"\u003e\n\u003cdiv class=\"hace-desc__bullet\"\u003e\n\u003cspan class=\"hace-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hace-desc__bullet-text\"\u003e\u003cstrong\u003eControl built into the elbow\u003c\/strong\u003e: no straight duct required upstream or downstream; designed for tight mechanical rooms and constrained duct layouts\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__bullet\"\u003e\n\u003cspan class=\"hace-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hace-desc__bullet-text\"\u003e\u003cstrong\u003eSame stall-protected Hoyme spring motor drive\u003c\/strong\u003e: nylon bearings, 24 Vac, identical to the standard HAC drive\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__bullet\"\u003e\n\u003cspan class=\"hace-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hace-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action\u003c\/strong\u003e: confirm before ordering; the action can be converted in the field using the Hoyme conversion procedure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__bullet\"\u003e\n\u003cspan class=\"hace-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hace-desc__bullet-text\"\u003e\u003cstrong\u003eProving end switch available\u003c\/strong\u003e: confirms the blade has physically reached position; required for proving ADP adaptors (TPX models) and gas dryer RADPs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__bullet\"\u003e\n\u003cspan class=\"hace-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hace-desc__bullet-text\"\u003e\u003cstrong\u003eNo relay option\u003c\/strong\u003e: motor code 10 on all sizes; if a relay output is needed at the elbow location, a relay adaptor in the control circuit is the alternative\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare\"\u003e\n\u003cdiv class=\"hace-desc__compare-card hace-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hace-desc__compare-title\"\u003eUse HAC-E when…\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eNo straight duct available at the control point: elbow is the only option\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eTight mechanical room: adding straight sections before\/after a HAC isn't practical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eRetrofit where existing duct layout only permits control at an elbow\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eHRV\/ERV fresh air connection where the elbow is the only viable control point\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-card hace-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hace-desc__compare-title\"\u003eUse standard HAC when…\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eStraight duct space is available, always the preferred install\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eService access needs to be straightforward: actuator on inline body, clear approach\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003e4\" diameter needed: HAC-E starts at 5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__compare-item\"\u003e\n\u003cspan class=\"hace-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hace-desc__compare-text\"\u003eRelay output required: relay not available on HAC-E\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__specs\"\u003e\n\u003cdiv class=\"hace-desc__spec hace-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eConfiguration\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003eMotorized elbow: blade in fitting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003e5\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eEnd Switch\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003eProving: optional (S prefix)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec hace-desc__spec--amber\"\u003e\n\u003cdiv class=\"hace-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__spec-value\"\u003eNot available on HAC-E\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__note\"\u003e\n\u003cstrong\u003eInterlocking with the furnace fan?\u003c\/strong\u003e Use the ADP-0241-05A (24 Vac ventilation switch) or ADP-1101-05A (120 Vac exhaust fan switch) with an OPO or OPC variant; both open the damper and start the furnace fan together. Where an exhaust fan must wait until the damper proves open, use a TPX proving adaptor with the SPO or SPC variant. See the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP series\u003c\/a\u003e for the correct model for your application.\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__warranty\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"flex-shrink: 0;\"\u003e\n      \u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n      \u003cpath d=\"M9 12l2 2 4-4\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hace-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hace-desc__warranty-sub\"\u003eMade in Canada · Same Hoyme spring motor drive as the standard HAC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"5\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083241422891,"sku":"HAC-0510-OPO-E","price":193.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch (Proving)","offer_id":43083241455659,"sku":"HAC-0510-SPO-E","price":220.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083241488427,"sku":"HAC-0510-OPC-E","price":193.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch (Proving)","offer_id":43083241521195,"sku":"HAC-0510-SPC-E","price":220.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083241553963,"sku":"HAC-0610-OPO-E","price":195.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch (Proving)","offer_id":43083241586731,"sku":"HAC-0610-SPO-E","price":222.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083241619499,"sku":"HAC-0610-OPC-E","price":195.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch (Proving)","offer_id":43083241652267,"sku":"HAC-0610-SPC-E","price":222.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083241685035,"sku":"HAC-0710-OPO-E","price":196.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch (Proving)","offer_id":43083241717803,"sku":"HAC-0710-SPO-E","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083241750571,"sku":"HAC-0710-OPC-E","price":196.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch (Proving)","offer_id":43083241783339,"sku":"HAC-0710-SPC-E","price":223.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083241816107,"sku":"HAC-0810-OPO-E","price":199.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch (Proving)","offer_id":43083241848875,"sku":"HAC-0810-SPO-E","price":224.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083241881643,"sku":"HAC-0810-OPC-E","price":199.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch (Proving)","offer_id":43083241914411,"sku":"HAC-0810-SPC-E","price":224.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083241947179,"sku":"HAC-0910-OPO-E","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (Proving)","offer_id":43083241979947,"sku":"HAC-0910-SPO-E","price":230.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083242012715,"sku":"HAC-0910-OPC-E","price":204.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (Proving)","offer_id":43083242045483,"sku":"HAC-0910-SPC-E","price":230.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_50.png?v=1775754396"},{"product_id":"hac-12-inline-air-damper-120vac","title":"HAC-12 Inline Fresh Air Damper, CSA Certified, 120 Vac, Built-In Transformer, 4\"–9\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hac12-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac12-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac12-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac12-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac12-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac12-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac12-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac12-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac12-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac12-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac12-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hac12-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hac12-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hac12-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hac12-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 700; color: #001F3F; margin-bottom: 8px; }\n  .hac12-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hac12-desc__compare-item:last-child { margin-bottom: 0; }\n  .hac12-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac12-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac12-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hac12-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac12-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac12-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hac12-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac12-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac12-desc__spec--highlight .hac12-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac12-desc__spec--highlight .hac12-desc__spec-value { color: #FFFFFF; }\n  .hac12-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac12-desc__spec--amber .hac12-desc__spec-label { color: #92400e; }\n  .hac12-desc__spec--amber .hac12-desc__spec-value { color: #92400e; }\n\n  .hac12-desc__variants { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac12-desc__variant { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 14px; }\n  .hac12-desc__variant-code { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #C8102E; margin-bottom: 2px; }\n  .hac12-desc__variant-desc { font-size: 12px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.4; }\n\n  .hac12-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac12-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac12-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\n  @media (max-width: 480px) {\n    .hac12-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"hac12-desc\"\u003e\n\u003cp class=\"hac12-desc__intro\"\u003e120 Vac version of the standard HAC inline fresh air damper. A built-in transformer steps 120 Vac down to 24 Vac internally: run a single switched 120 Vac circuit to the damper and it handles the voltage conversion. No separate transformer, no low-voltage wiring run, no additional panel space. Same spring return open\/close operation as the standard HAC. CSA certified. Sizes 4\"–9\".\u003c\/p\u003e\n\u003cdiv class=\"hac12-desc__warning\"\u003e\n\u003cstrong\u003eDo not supply 24 Vac to a HAC-12.\u003c\/strong\u003e The built-in transformer requires 120 Vac input. Supplying 24 Vac to a 120 Vac unit will result in product damage and will not operate the damper. If 24 Vac is available at the damper location, order the standard HAC.\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is set at the factory. If it needs to change, it can be converted in the field by removing the motor, reversing the spring plate, and remounting the drive, following the Hoyme conversion procedure. PO is correct for the vast majority of fresh air intake and make-up air applications. PC is used only when fail-open on power loss is required by the system design.\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullets\"\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003eBuilt-in 120 Vac to 24 Vac transformer\u003c\/strong\u003e: one switched 120 Vac circuit to the damper; no separate transformer to mount, no secondary low-voltage run\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003eSame spring return operation as the standard HAC\u003c\/strong\u003e: Hansen motor with 24 Vac spring return mechanism internally; same PO\/PC fail-safe behavior\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003eRetrofit-ready\u003c\/strong\u003e: ideal when a 120 Vac switched circuit is already at the damper location and running new low-voltage wiring through finished walls is impractical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch available\u003c\/strong\u003e: all factory-installed; relay not available on HAC-12\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__bullet\"\u003e\n\u003cspan class=\"hac12-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac12-desc__bullet-text\"\u003e\u003cstrong\u003e120 Vac variants available\u003c\/strong\u003e: HAC-12H adds 10% heat bypass for zone control; HAC-12L adds factory insulation for cold climate installs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare\"\u003e\n\u003cdiv class=\"hac12-desc__compare-card hac12-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac12-desc__compare-title\"\u003eUse HAC-12 (120 Vac) when…\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eOnly 120 Vac is available at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eDamper controlled from a 120 Vac switch, timer, or line-voltage relay\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eRetrofit where running low-voltage wire is impractical or costly\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eSimple on\/off control, no ADP furnace fan interlock required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-card hac12-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac12-desc__compare-title\"\u003eUse standard HAC (24 Vac) when…\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003e24 Vac control circuit is already at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eADP relay adaptor needed for furnace fan interlock\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eRelay output required from the damper\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__compare-item\"\u003e\n\u003cspan class=\"hac12-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac12-desc__compare-text\"\u003eSizes 2\" or 3\" required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__specs\"\u003e\n\u003cdiv class=\"hac12-desc__spec hac12-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003e120 Vac: built-in transformer\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eEnd Switch\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003eOptional (S prefix)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec hac12-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac12-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__spec-value\"\u003eNot available: use standard HAC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variants\"\u003e\n\u003cdiv class=\"hac12-desc__variant\"\u003e\n\u003cdiv class=\"hac12-desc__variant-code\"\u003eHAC-12\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variant-desc\"\u003eThis product: fresh air intake and make-up air at 120 Vac sites\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variant\"\u003e\n\u003cdiv class=\"hac12-desc__variant-code\"\u003eHAC-12H\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variant-desc\"\u003e120 Vac + 10% heat bypass: hot air duct zone control at 120 Vac sites\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variant\"\u003e\n\u003cdiv class=\"hac12-desc__variant-code\"\u003eHAC-12L\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__variant-desc\"\u003e120 Vac + factory insulation: cold climate installs at 120 Vac sites\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__note\"\u003e\n\u003cstrong\u003eNeed an ADP furnace fan interlock?\u003c\/strong\u003e The ADP relay adaptor series is designed for 24 Vac control circuits and is not directly compatible with the HAC-12's 120 Vac supply. For applications requiring fresh air damper interlock with the furnace fan, use the \u003ca href=\"\/products\/hac-inline-motorized-air-damper-24vac\"\u003estandard 24 Vac HAC\u003c\/a\u003e with the appropriate \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP relay adaptor\u003c\/a\u003e. If only 120 Vac is available and a furnace fan interlock is required, discuss the wiring approach with your controls supplier.\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac12-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac12-desc__warranty-sub\"\u003eCSA certified · Made in Canada\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281825835,"sku":"HAC-0412-OPO","price":242.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch","offer_id":43083283922987,"sku":"HAC-0412-SPO","price":270.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083283955755,"sku":"HAC-0412-OPC","price":242.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ End Switch","offer_id":43083283988523,"sku":"HAC-0412-SPC","price":270.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281858603,"sku":"HAC-0512-OPO","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch","offer_id":43083284021291,"sku":"HAC-0512-SPO","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083284054059,"sku":"HAC-0512-OPC","price":244.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch","offer_id":43083284086827,"sku":"HAC-0512-SPC","price":271.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281891371,"sku":"HAC-0612-OPO","price":246.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch","offer_id":43083284119595,"sku":"HAC-0612-SPO","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083284152363,"sku":"HAC-0612-OPC","price":246.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch","offer_id":43083284185131,"sku":"HAC-0612-SPC","price":273.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281924139,"sku":"HAC-0712-OPO","price":248.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch","offer_id":43083284217899,"sku":"HAC-0712-SPO","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083284250667,"sku":"HAC-0712-OPC","price":248.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch","offer_id":43083284283435,"sku":"HAC-0712-SPC","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281956907,"sku":"HAC-0812-OPO","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch","offer_id":43083284316203,"sku":"HAC-0812-SPO","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083284348971,"sku":"HAC-0812-OPC","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch","offer_id":43083284381739,"sku":"HAC-0812-SPC","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083281989675,"sku":"HAC-0912-OPO","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch","offer_id":43083284414507,"sku":"HAC-0912-SPO","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083284447275,"sku":"HAC-0912-OPC","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch","offer_id":43083284480043,"sku":"HAC-0912-SPC","price":282.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_86.png?v=1775770337"},{"product_id":"hac-12h-heat-bypass-damper-120vac","title":"HAC-12H Heat Bypass Inline Damper, 120 Vac, Built-In Transformer, 10% Bypass, 4\"–9\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hac12h-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac12h-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac12h-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac12h-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac12h-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac12h-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac12h-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12h-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac12h-desc__dual-warning { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }\n  .hac12h-desc__dual-warning-item { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.55; }\n  .hac12h-desc__dual-warning-icon { color: #C8102E; font-weight: 800; font-size: 14px; flex-shrink: 0; line-height: 1.55; }\n  .hac12h-desc__dual-warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac12h-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12h-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac12h-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12h-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac12h-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac12h-desc__table-wrap { overflow-x: auto; margin-bottom: 8px; }\n  .hac12h-desc__table { width: 100%; border-collapse: collapse; font-size: 13px; font-family: 'Open Sans', sans-serif; }\n  .hac12h-desc__table th { background: #001F3F; color: #FFFFFF; font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; padding: 9px 14px; text-align: left; white-space: nowrap; }\n  .hac12h-desc__table td { padding: 8px 14px; border-bottom: 1px solid #e2e8f0; color: #001F3F; vertical-align: top; }\n  .hac12h-desc__table tr:last-child td { border-bottom: none; }\n  .hac12h-desc__table tr:nth-child(even) td { background: #f8fafc; }\n  .hac12h-desc__table td:first-child { font-size: 12.5px; }\n  .hac12h-desc__table td:last-child { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; font-size: 12.5px; white-space: nowrap; }\n  .hac12h-desc__table tr.hac12h-desc__table-highlight td { background: #F3F6F8; }\n  .hac12h-desc__table tr.hac12h-desc__table-highlight td:last-child { color: #001F3F; }\n  .hac12h-desc__table-footer { font-size: 12px; color: #718096; font-family: 'Open Sans', sans-serif; margin-top: 6px; margin-bottom: 20px; font-style: italic; }\n\n  .hac12h-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac12h-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac12h-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hac12h-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac12h-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac12h-desc__spec--highlight .hac12h-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac12h-desc__spec--highlight .hac12h-desc__spec-value { color: #FFFFFF; }\n  .hac12h-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac12h-desc__spec--red .hac12h-desc__spec-label { color: #C8102E; }\n  .hac12h-desc__spec--red .hac12h-desc__spec-value { color: #C8102E; }\n  .hac12h-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac12h-desc__spec--amber .hac12h-desc__spec-label { color: #92400e; }\n  .hac12h-desc__spec--amber .hac12h-desc__spec-value { color: #92400e; }\n\n  .hac12h-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac12h-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac12h-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hac12h-desc\"\u003e\n\n  \u003cp class=\"hac12h-desc__intro\"\u003eThe HAC-12H combines two features in one unit: the 120 Vac built-in transformer of the HAC-12 and the 10% heat bypass blade of the HAC-H. For one specific situation: hot air supply duct zone control on a 120 Vac site. Both conditions must be present to justify this product. If only one applies, one of the single-feature variants is the correct order. CSA certified. Sizes 4\"–9\".\u003c\/p\u003e\n  \u003cdiv class=\"hac12h-desc__dual-warning\"\u003e\n    \u003cdiv class=\"hac12h-desc__dual-warning-item\"\u003e\n      \u003cspan class=\"hac12h-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eDo not supply 24 Vac to a HAC-12H.\u003c\/strong\u003e The built-in transformer requires 120 Vac input. Supplying 24 Vac will result in product damage and will not operate the damper.\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__dual-warning-item\"\u003e\n      \u003cspan class=\"hac12h-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eDo not install on fresh air intake, make-up air, or ventilation applications.\u003c\/strong\u003e The 10% bypass is permanent and cannot be disabled: outdoor air infiltrates continuously through the bypass whenever the damper is commanded closed.\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"hac12h-desc__warning\"\u003e\n    \u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is set at the factory. If it needs to change, it can be converted in the field by removing the motor, reversing the spring plate, and remounting the drive, following the Hoyme conversion procedure. For most hot air zone control applications PO is correct. PC is used only when the zone must fail open on power loss; confirm with the system designer.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac12h-desc__bullets\"\u003e\n\n    \u003cdiv class=\"hac12h-desc__bullet\"\u003e\n      \u003cspan class=\"hac12h-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12h-desc__bullet-text\"\u003e\u003cstrong\u003eBuilt-in 120 Vac to 24 Vac transformer\u003c\/strong\u003e: one switched 120 Vac circuit to the damper; no separate transformer, no low-voltage wiring run required\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12h-desc__bullet\"\u003e\n      \u003cspan class=\"hac12h-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12h-desc__bullet-text\"\u003e\u003cstrong\u003e10% bypass machined into the blade at the factory\u003c\/strong\u003e: permanent, not field-adjustable; maintains minimum flow through closed zones, prevents high-limit trips on single-speed furnaces\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12h-desc__bullet\"\u003e\n      \u003cspan class=\"hac12h-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12h-desc__bullet-text\"\u003e\u003cstrong\u003eSame spring return operation as the standard HAC\u003c\/strong\u003e: Hansen motor with 24 Vac spring return internally; same PO\/PC fail-safe behavior\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12h-desc__bullet\"\u003e\n      \u003cspan class=\"hac12h-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12h-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch available\u003c\/strong\u003e: all factory-installed; relay not available on any 120 Vac motor code variant\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12h-desc__bullet\"\u003e\n      \u003cspan class=\"hac12h-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12h-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n  \u003cdiv class=\"hac12h-desc__table-wrap\"\u003e\n    \u003ctable class=\"hac12h-desc__table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eJob Condition\u003c\/th\u003e\n          \u003cth\u003eRight Product\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hac12h-desc__table-highlight\"\u003e\n          \u003ctd\u003e120 Vac supply + hot air duct zone control (bypass needed)\u003c\/td\u003e\n          \u003ctd\u003eHAC-12H: this product\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e120 Vac supply + fresh air intake or make-up air (full shutoff needed)\u003c\/td\u003e\n          \u003ctd\u003eHAC-12\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e120 Vac supply + cold climate damper location (insulation needed, no bypass)\u003c\/td\u003e\n          \u003ctd\u003eHAC-12L\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e24 Vac supply + hot air duct zone control (bypass needed)\u003c\/td\u003e\n          \u003ctd\u003eHAC-H\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e24 Vac supply + fresh air intake or make-up air\u003c\/td\u003e\n          \u003ctd\u003eHAC (standard)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp class=\"hac12h-desc__table-footer\"\u003eIf more than one condition applies (for example, a 120 Vac site, hot air duct zone control, AND a cold climate location), no standard variant covers all conditions. Contact Hoyme Manufacturing for guidance before ordering.\u003c\/p\u003e\n\n  \u003cdiv class=\"hac12h-desc__specs\"\u003e\n    \u003cdiv class=\"hac12h-desc__spec hac12h-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003e120 Vac: built-in transformer\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__spec hac12h-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eBypass\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003e10%: factory machined, permanent\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__spec\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__spec\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eAction\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__spec hac12h-desc__spec--red\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eNot Suitable For\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003eFresh air, make-up air, ventilation\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12h-desc__spec hac12h-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac12h-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__spec-value\"\u003eNot available: use HAC-H (24 Vac)\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac12h-desc__note\"\u003e\n    \u003cstrong\u003eNeed relay output or an ADP furnace fan interlock?\u003c\/strong\u003e The 120 Vac motor code does not include relay capability. For zone control applications requiring a relay output or furnace fan interlock, use the \u003ca href=\"\/products\/hac-h-heat-bypass-inline-damper-24vac\"\u003eHAC-H (24 Vac)\u003c\/a\u003e with the relay option and ADP relay adaptor. For 120 Vac sites requiring relay output, discuss the control circuit approach with your wholesaler.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac12h-desc__warranty\"\u003e\n    \u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"hac12h-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"hac12h-desc__warranty-sub\"\u003eCSA certified  ·  Made in Canada\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295260715,"sku":"HAC-0412-OPO-H","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch","offer_id":43083295293483,"sku":"HAC-0412-SPO-H","price":300.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295326251,"sku":"HAC-0412-OPC-H","price":274.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ End Switch","offer_id":43083295359019,"sku":"HAC-0412-SPC-H","price":300.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295391787,"sku":"HAC-0512-OPO-H","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch","offer_id":43083295424555,"sku":"HAC-0512-SPO-H","price":301.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295457323,"sku":"HAC-0512-OPC-H","price":276.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch","offer_id":43083295490091,"sku":"HAC-0512-SPC-H","price":301.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295522859,"sku":"HAC-0612-OPO-H","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch","offer_id":43083295555627,"sku":"HAC-0612-SPO-H","price":304.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295588395,"sku":"HAC-0612-OPC-H","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch","offer_id":43083295621163,"sku":"HAC-0612-SPC-H","price":304.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295653931,"sku":"HAC-0712-OPO-H","price":279.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch","offer_id":43083295686699,"sku":"HAC-0712-SPO-H","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295719467,"sku":"HAC-0712-OPC-H","price":279.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch","offer_id":43083295752235,"sku":"HAC-0712-SPC-H","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295785003,"sku":"HAC-0812-OPO-H","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch","offer_id":43083295817771,"sku":"HAC-0812-SPO-H","price":309.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295850539,"sku":"HAC-0812-OPC-H","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch","offer_id":43083295883307,"sku":"HAC-0812-SPC-H","price":309.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43083295916075,"sku":"HAC-0912-OPO-H","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch","offer_id":43083295948843,"sku":"HAC-0912-SPO-H","price":314.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43083295981611,"sku":"HAC-0912-OPC-H","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch","offer_id":43083296014379,"sku":"HAC-0912-SPC-H","price":314.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_85.png?v=1775770127"},{"product_id":"hac50-51-inline-damper-quarter-turn-24vac","title":"HAC-50 \/ HAC-51 Inline Air Control Damper, 24 Vac, 6\"–14\", Quarter-Turn ¼\" Drive","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac50-desc *{box-sizing:border-box;margin:0;padding:0;}.hac50-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac50-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac50-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac50-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac50-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac50-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac50-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac50-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac50-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac50-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac50-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac50-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac50-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hac50-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:14px 16px;}.hac50-desc__compare-card--red{border-top:3px solid #C8102E;}.hac50-desc__compare-card--navy{border-top:3px solid #001F3F;}.hac50-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:14px;font-weight:800;color:#001F3F;margin-bottom:10px;}.hac50-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.hac50-desc__compare-item:last-child{margin-bottom:0;}.hac50-desc__compare-dot--red{color:#C8102E;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac50-desc__compare-dot--navy{color:#001F3F;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac50-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hac50-desc__table-wrap{overflow-x:auto;margin-bottom:20px;}.hac50-desc__table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hac50-desc__table th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hac50-desc__table td{padding:7px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac50-desc__table tr:last-child td{border-bottom:none;}.hac50-desc__table tr:nth-child(even) td{background:#f8fafc;}.hac50-desc__table td:first-child{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac50-desc__table-note{font-size:11.5px;color:#718096;font-family:'Open Sans',sans-serif;margin-top:6px;font-style:italic;}.hac50-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac50-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac50-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac50-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac50-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac50-desc__spec--highlight .hac50-desc__spec-label{color:rgba(255,255,255,0.5);}.hac50-desc__spec--highlight .hac50-desc__spec-value{color:#FFFFFF;}.hac50-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac50-desc__spec--amber .hac50-desc__spec-label{color:#92400e;}.hac50-desc__spec--amber .hac50-desc__spec-value{color:#92400e;}.hac50-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac50-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac50-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac50-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac50-desc\"\u003e\n\u003cp class=\"hac50-desc__intro\"\u003eThe standard HAC option set scaled to 6\"–14\" round duct. Quarter-turn actuator on a ¼\" drive shaft with the same spring return fail-safe, same PO\/PC configuration, same end switch and relay options as the standard HAC, rated for the torque demands of larger blade areas. Not CSA certified; where certification is required up to 9\", use the standard HAC. HAC-50 and HAC-51 are the same product: the only difference is whether the relay is optional (HAC-50) or standard on every unit (HAC-51).\u003c\/p\u003e\n\u003cdiv class=\"hac50-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering.\u003c\/strong\u003e The action is factory-set. PO is correct for fresh air intake and make-up air: the duct seals when the system is off. PC is used only when fail-open on power loss is required. Note: 7\" is not available in this series; use the standard HAC (Hoyme drive, available to 9\") for 7\" applications.\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullets\"\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003eQuarter-turn ¼\" drive shaft actuator\u003c\/strong\u003e: rated for the torque requirements of 6\"–14\" blade areas under duct static pressure conditions where the standard Hoyme drive is not\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003eSame spring return fail-safe as the standard HAC\u003c\/strong\u003e: blade springs to fail-safe position on power loss regardless of duct pressure; PO or PC to suit the application\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003eFull option set available on all sizes\u003c\/strong\u003e: end switch, relay, heat bypass (-H), insulated body (-L); all factory-installed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003e¼\" drive shaft: industry standard interface\u003c\/strong\u003e. Actuator replacement not limited to a single proprietary part\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003eNot CSA certified\u003c\/strong\u003e: where the job requires a CSA certified damper, use the standard HAC (2\" to 9\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__bullet\"\u003e\n\u003cspan class=\"hac50-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac50-desc__bullet-text\"\u003e\u003cstrong\u003eSizes above 14\"?\u003c\/strong\u003e See HAC-40 (Belimo TFB24, 6\"–20\") or the HAC Belimo series for modulating and floating point control\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare\"\u003e\n\u003cdiv class=\"hac50-desc__compare-card hac50-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac50-desc__compare-title\"\u003eHAC-50\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eRelay optional: add when needed on specific units\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eUse when relay is the exception: most units don't need it\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eCleaner ordering when relay-free is the default configuration\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-card hac50-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac50-desc__compare-title\"\u003eHAC-51\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eRelay standard: included on every unit automatically\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eUse when relay is required on all units: simplifies ordering on multi-zone systems\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__compare-item\"\u003e\n\u003cspan class=\"hac50-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac50-desc__compare-text\"\u003eSpecify size, action, end switch: relay is just there\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__table-wrap\"\u003e\n\u003ctable class=\"hac50-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eHAC-50 (relay optional)\u003c\/th\u003e\n\u003cth\u003eHAC-51 (relay standard)\u003c\/th\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\"\u003c\/td\u003e\n\u003ctd\u003eHAC-0650-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-0651-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\"\u003c\/td\u003e\n\u003ctd\u003eHAC-0850-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-0851-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003eHAC-0950-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-0951-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1050-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-1051-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1250-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-1251-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\"\u003c\/td\u003e\n\u003ctd\u003eHAC-1450-xxx\u003c\/td\u003e\n\u003ctd\u003eHAC-1451-xxx\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn, ¼\" drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"hac50-desc__table-note\"\u003e7\" is not available in this series: use the standard HAC (Hoyme drive, available to 9\") for 7\" applications.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__specs\"\u003e\n\u003cdiv class=\"hac50-desc__spec hac50-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003eQuarter-turn: ¼\" drive shaft\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003e6\", 8\", 9\", 10\", 12\", 14\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003e24 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec hac50-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac50-desc__spec-label\"\u003e7\" Available?\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__spec-value\"\u003eNo: use standard HAC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__note\"\u003e\n\u003cstrong\u003eInterlocking with the furnace fan?\u003c\/strong\u003e Use the ADP-0241-05A (24 Vac switch) or ADP-1101-05A (120 Vac exhaust fan switch) with an OPO or OPC variant; both open the damper and start the furnace fan together. Where an exhaust fan must wait until the damper proves open, use a TPX proving adaptor with the SPO or SPC variant. See the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP series\u003c\/a\u003e for the correct model for your application. For sizes above 14\" see \u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40 (Belimo TFB24)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac50-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac50-desc__warranty-sub\"\u003eMade in Canada  ·  ¼\" drive shaft, industry-standard actuator interface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085330546731,"sku":"HAC-0650-OPO","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085330579499,"sku":"HAC-0650-SPO","price":285.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085330612267,"sku":"HAC-0651-OPO","price":308.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085330645035,"sku":"HAC-0651-SPO","price":336.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085330677803,"sku":"HAC-0650-OPC","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085330710571,"sku":"HAC-0650-SPC","price":285.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085330743339,"sku":"HAC-0651-OPC","price":308.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085330776107,"sku":"HAC-0651-SPC","price":336.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085330808875,"sku":"HAC-0850-OPO","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085330841643,"sku":"HAC-0850-SPO","price":287.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085330874411,"sku":"HAC-0851-OPO","price":310.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085330907179,"sku":"HAC-0851-SPO","price":338.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085330939947,"sku":"HAC-0850-OPC","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085330972715,"sku":"HAC-0850-SPC","price":287.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085331005483,"sku":"HAC-0851-OPC","price":310.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085331038251,"sku":"HAC-0851-SPC","price":338.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331071019,"sku":"HAC-0950-OPO","price":353.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085331103787,"sku":"HAC-0950-SPO","price":378.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085331136555,"sku":"HAC-0951-OPO","price":402.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085331169323,"sku":"HAC-0951-SPO","price":431.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331202091,"sku":"HAC-0950-OPC","price":353.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085331234859,"sku":"HAC-0950-SPC","price":378.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085331267627,"sku":"HAC-0951-OPC","price":402.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085331300395,"sku":"HAC-0951-SPC","price":431.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331333163,"sku":"HAC-1050-OPO","price":370.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085331365931,"sku":"HAC-1050-SPO","price":397.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085331398699,"sku":"HAC-1051-OPO","price":422.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085331431467,"sku":"HAC-1051-SPO","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331464235,"sku":"HAC-1050-OPC","price":370.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085331497003,"sku":"HAC-1050-SPC","price":397.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085331529771,"sku":"HAC-1051-OPC","price":422.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085331562539,"sku":"HAC-1051-SPC","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331595307,"sku":"HAC-1250-OPO","price":378.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085331628075,"sku":"HAC-1250-SPO","price":408.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085331660843,"sku":"HAC-1251-OPO","price":431.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085331693611,"sku":"HAC-1251-SPO","price":458.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331726379,"sku":"HAC-1250-OPC","price":378.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085331759147,"sku":"HAC-1250-SPC","price":408.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085331791915,"sku":"HAC-1251-OPC","price":431.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085331824683,"sku":"HAC-1251-SPC","price":458.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331857451,"sku":"HAC-1450-OPO","price":397.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ End Switch (No Relay)","offer_id":43085331890219,"sku":"HAC-1450-SPO","price":425.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Relay (No End Switch)","offer_id":43085331922987,"sku":"HAC-1451-OPO","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Relay + End Switch","offer_id":43085331955755,"sku":"HAC-1451-SPO","price":476.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard (No Relay \/ No End Switch)","offer_id":43085331988523,"sku":"HAC-1450-OPC","price":397.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ End Switch (No Relay)","offer_id":43085332021291,"sku":"HAC-1450-SPC","price":425.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Relay (No End Switch)","offer_id":43085332054059,"sku":"HAC-1451-OPC","price":448.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Relay + End Switch","offer_id":43085332086827,"sku":"HAC-1451-SPC","price":476.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_84.png?v=1775770085"},{"product_id":"hac-belimo-tfb24-inline-damper-24vac","title":"HAC-40 Inline Damper with Belimo TFB24, On\/Off Spring Return, 24 Vac\/dc, 6\"–20\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac40-desc *{box-sizing:border-box;margin:0;padding:0;}.hac40-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac40-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac40-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac40-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac40-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac40-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac40-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac40-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac40-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac40-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac40-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac40-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac40-desc__table-wrap{overflow-x:auto;margin-bottom:20px;}.hac40-desc__table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hac40-desc__table th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hac40-desc__table td{padding:8px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac40-desc__table tr:last-child td{border-bottom:none;}.hac40-desc__table tr.hac40-desc__table-highlight td{background:#F3F6F8;}.hac40-desc__table tr.hac40-desc__table-highlight td:first-child{font-family:'Montserrat',sans-serif;font-weight:800;color:#C8102E;}.hac40-desc__table td:first-child{font-family:'Montserrat',sans-serif;font-weight:700;color:#374151;}.hac40-desc__table td:nth-child(2){font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;font-size:12px;}.hac40-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac40-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac40-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac40-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac40-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac40-desc__spec--highlight .hac40-desc__spec-label{color:rgba(255,255,255,0.5);}.hac40-desc__spec--highlight .hac40-desc__spec-value{color:#FFFFFF;}.hac40-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac40-desc__spec--amber .hac40-desc__spec-label{color:#92400e;}.hac40-desc__spec--amber .hac40-desc__spec-value{color:#92400e;}.hac40-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac40-desc__spec--red .hac40-desc__spec-label{color:#C8102E;}.hac40-desc__spec--red .hac40-desc__spec-value{color:#C8102E;}.hac40-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac40-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac40-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}\u003c\/style\u003e\n\u003cdiv class=\"hac40-desc\"\u003e\n\u003cp class=\"hac40-desc__intro\"\u003eHoyme inline damper body with Belimo TFB24 on\/off spring return actuator: factory-assembled, single SKU, ready to install. The product for projects where the mechanical engineer specifies Belimo, where damper sizes extend beyond 14\", or where 24 Vac\/dc supply flexibility is required. Sizes 6\"–20\" in even-inch increments.\u003c\/p\u003e\n\u003cdiv class=\"hac40-desc__bullets\"\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB24: most specified on\/off spring return actuator in commercial HVAC\u003c\/strong\u003e. Factory-mounted to Hoyme damper body; no field mounting, no compatibility questions, one SKU\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac or 24 Vdc: either polarity on DC\u003c\/strong\u003e. Practical advantage on BAS systems where the control output is DC rather than AC; most on\/off actuators at this price point are AC only\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003e6\"–20\" even-inch sizes\u003c\/strong\u003e: covers the size range where the standard Hoyme quarter-turn drive is not rated; same spring return fail-safe behavior\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003eTFB24 field-replaceable\u003c\/strong\u003e: stocked through Belimo distributors; actuator replaces without disturbing the damper body or duct connections\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and heat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; no relay on TFB24 motor code\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__bullet\"\u003e\n\u003cspan class=\"hac40-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac40-desc__bullet-text\"\u003e\u003cstrong\u003eCSA certified to 12\"\u003c\/strong\u003e: for 14\"–20\", confirm AHJ acceptance before ordering on code-required applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__warning\"\u003e\n\u003cstrong\u003eConfirm PO vs. PC before ordering, and confirm the -H bypass is not on a fresh air application.\u003c\/strong\u003e Action is factory-set. The -H heat bypass is permanent and cannot be disabled: do not specify -H on fresh air intake, make-up air, or ventilation applications. The bypass will allow continuous outdoor air infiltration when the damper is commanded closed.\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__table-wrap\"\u003e\n\u003ctable class=\"hac40-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIf you need…\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hac40-desc__table-highlight\"\u003e\n\u003ctd\u003eOn\/off spring return, 2-position gate, 24 Vac\/dc\u003c\/td\u003e\n\u003ctd\u003eHAC-40\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24: this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/off spring return, 100–240 Vac line voltage\u003c\/td\u003e\n\u003ctd\u003eHAC-44\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulating 2–10 VDC proportional control\u003c\/td\u003e\n\u003ctd\u003eHAC-43\u003c\/td\u003e\n\u003ctd\u003eBelimo TFB24-SR-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-wire floating point DDC open\/stop\/close\u003c\/td\u003e\n\u003ctd\u003eHAC-34\u003c\/td\u003e\n\u003ctd\u003eBelimo CMB24-3-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFire and smoke actuator (not a listed damper)\u003c\/td\u003e\n\u003ctd\u003eHAC-90\u003c\/td\u003e\n\u003ctd\u003eBelimo FSLF24 US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__specs\"\u003e\n\u003cdiv class=\"hac40-desc__spec hac40-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003eBelimo TFB24: factory-mounted\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003e24 Vac or 24 Vdc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec hac40-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003eCertified to 12\": confirm AHJ for 14\"–20\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec hac40-desc__spec--red\"\u003e\n\u003cdiv class=\"hac40-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__spec-value\"\u003eNot available on TFB24\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__note\"\u003e\n\u003cstrong\u003eInterlocking with the furnace fan?\u003c\/strong\u003e Use the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-0241-05A\u003c\/a\u003e with an OPO or OPC variant; it opens the damper and starts the furnace fan together. Use the end switch variant (SPO or SPC) only with a TPX proving adaptor or a BAS that needs position feedback. The TFB24 does not include a relay: if a relay output is needed in the control circuit, use a separate relay adaptor. For modulating control see \u003ca href=\"\/products\/hac-belimo-tfb24-sr-t-modulating-2-10vdc\"\u003eHAC-43 (TFB24-SR-T)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac40-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac40-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo TFB24 field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43085973028907,"sku":"HAC-0640-OPO","price":605.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat","offer_id":43093472706603,"sku":"HAC-0640-OPO-H","price":627.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard","offer_id":43085973094443,"sku":"HAC-0640-OPC","price":605.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Heat","offer_id":43093472739371,"sku":"HAC-0640-OPC-H","price":627.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Standard","offer_id":43093472772139,"sku":"HAC-0640-SPO","price":625.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Heat","offer_id":43093472804907,"sku":"HAC-0640-SPO-H","price":646.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Standard","offer_id":43093472837675,"sku":"HAC-0640-SPC","price":625.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Heat","offer_id":43093472870443,"sku":"HAC-0640-SPC-H","price":646.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard","offer_id":43085973159979,"sku":"HAC-0840-OPO","price":607.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Heat","offer_id":43093472903211,"sku":"HAC-0840-OPO-H","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard","offer_id":43085973225515,"sku":"HAC-0840-OPC","price":607.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Heat","offer_id":43093472935979,"sku":"HAC-0840-OPC-H","price":630.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Standard","offer_id":43093472968747,"sku":"HAC-0840-SPO","price":626.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Heat","offer_id":43093473001515,"sku":"HAC-0840-SPO-H","price":650.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Standard","offer_id":43093473034283,"sku":"HAC-0840-SPC","price":626.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Heat","offer_id":43093473067051,"sku":"HAC-0840-SPC-H","price":650.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard","offer_id":43085973291051,"sku":"HAC-1040-OPO","price":640.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Heat","offer_id":43093473099819,"sku":"HAC-1040-OPO-H","price":662.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard","offer_id":43085973356587,"sku":"HAC-1040-OPC","price":640.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Heat","offer_id":43093473132587,"sku":"HAC-1040-OPC-H","price":662.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Standard","offer_id":43093473165355,"sku":"HAC-1040-SPO","price":660.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Heat","offer_id":43093473198123,"sku":"HAC-1040-SPO-H","price":682.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Standard","offer_id":43093473230891,"sku":"HAC-1040-SPC","price":660.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Heat","offer_id":43093473263659,"sku":"HAC-1040-SPC-H","price":682.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard","offer_id":43085973422123,"sku":"HAC-1240-OPO","price":645.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Heat","offer_id":43093473296427,"sku":"HAC-1240-OPO-H","price":667.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Standard","offer_id":43085973487659,"sku":"HAC-1240-OPC","price":645.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Heat","offer_id":43093473329195,"sku":"HAC-1240-OPC-H","price":667.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Standard","offer_id":43093473361963,"sku":"HAC-1240-SPO","price":664.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Heat","offer_id":43093473394731,"sku":"HAC-1240-SPO-H","price":686.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Standard","offer_id":43093473427499,"sku":"HAC-1240-SPC","price":664.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Heat","offer_id":43093473460267,"sku":"HAC-1240-SPC-H","price":686.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard","offer_id":43085973553195,"sku":"HAC-1440-OPO","price":695.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Heat","offer_id":43093473493035,"sku":"HAC-1440-OPO-H","price":718.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard","offer_id":43085973618731,"sku":"HAC-1440-OPC","price":695.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Heat","offer_id":43093473525803,"sku":"HAC-1440-OPC-H","price":718.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Standard","offer_id":43093473558571,"sku":"HAC-1440-SPO","price":714.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Heat","offer_id":43093473591339,"sku":"HAC-1440-SPO-H","price":736.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Standard","offer_id":43093473624107,"sku":"HAC-1440-SPC","price":714.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Heat","offer_id":43093473656875,"sku":"HAC-1440-SPC-H","price":736.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard","offer_id":43085973684267,"sku":"HAC-1640-OPO","price":696.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Heat","offer_id":43093473689643,"sku":"HAC-1640-OPO-H","price":719.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Standard","offer_id":43085973749803,"sku":"HAC-1640-OPC","price":696.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Heat","offer_id":43093473722411,"sku":"HAC-1640-OPC-H","price":719.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Standard","offer_id":43093473755179,"sku":"HAC-1640-SPO","price":717.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Heat","offer_id":43093473787947,"sku":"HAC-1640-SPO-H","price":737.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close + End Switch \/ Standard","offer_id":43093473820715,"sku":"HAC-1640-SPC","price":717.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close + End Switch \/ Heat","offer_id":43093473853483,"sku":"HAC-1640-SPC-H","price":737.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard","offer_id":43085973815339,"sku":"HAC-1840-OPO","price":737.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Heat","offer_id":43093473886251,"sku":"HAC-1840-OPO-H","price":760.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Standard","offer_id":43085973880875,"sku":"HAC-1840-OPC","price":737.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Heat","offer_id":43093473919019,"sku":"HAC-1840-OPC-H","price":760.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Standard","offer_id":43093473951787,"sku":"HAC-1840-SPO","price":757.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Heat","offer_id":43093473984555,"sku":"HAC-1840-SPO-H","price":778.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Standard","offer_id":43093474017323,"sku":"HAC-1840-SPC","price":757.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Heat","offer_id":43093474050091,"sku":"HAC-1840-SPC-H","price":778.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard","offer_id":43085973946411,"sku":"HAC-2040-OPO","price":771.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Heat","offer_id":43093474082859,"sku":"HAC-2040-OPO-H","price":793.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Standard","offer_id":43085974011947,"sku":"HAC-2040-OPC","price":771.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Heat","offer_id":43093474115627,"sku":"HAC-2040-OPC-H","price":793.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Standard","offer_id":43093474148395,"sku":"HAC-2040-SPO","price":791.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Heat","offer_id":43093474181163,"sku":"HAC-2040-SPO-H","price":814.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Standard","offer_id":43093474213931,"sku":"HAC-2040-SPC","price":791.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Heat","offer_id":43093474246699,"sku":"HAC-2040-SPC-H","price":814.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_81.png?v=1775769862"},{"product_id":"hac-belimo-tfb120-inline-damper-100-240vac","title":"HAC-44 Inline Damper with Belimo TFB120, On\/Off Spring Return, 100–240 Vac, 6\"–20\"","description":"\u003cstyle\u003e.hac44-desc *{box-sizing:border-box;margin:0;padding:0;}.hac44-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac44-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac44-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac44-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac44-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac44-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac44-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac44-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac44-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac44-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac44-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac44-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac44-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hac44-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hac44-desc__compare-card--red{border-top:3px solid #C8102E;}.hac44-desc__compare-card--navy{border-top:3px solid #001F3F;}.hac44-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#001F3F;margin-bottom:10px;}.hac44-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.hac44-desc__compare-item:last-child{margin-bottom:0;}.hac44-desc__compare-dot--red{color:#C8102E;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac44-desc__compare-dot--navy{color:#001F3F;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac44-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hac44-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac44-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac44-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac44-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac44-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac44-desc__spec--highlight .hac44-desc__spec-label{color:rgba(255,255,255,0.5);}.hac44-desc__spec--highlight .hac44-desc__spec-value{color:#FFFFFF;}.hac44-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac44-desc__spec--amber .hac44-desc__spec-label{color:#92400e;}.hac44-desc__spec--amber .hac44-desc__spec-value{color:#92400e;}.hac44-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac44-desc__spec--red .hac44-desc__spec-label{color:#C8102E;}.hac44-desc__spec--red .hac44-desc__spec-value{color:#C8102E;}.hac44-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac44-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac44-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac44-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac44-desc\"\u003e\n\u003cp class=\"hac44-desc__intro\"\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"hac44-desc__intro\"\u003eThe line-voltage companion to the HAC-40. Same Hoyme inline damper body, same on\/off spring return behavior, same PO\/PC configuration, same 6\"–20\" size range. One difference: the Belimo TFB120 accepts 100–240 Vac directly, so no step-down transformer or low-voltage circuit is required. Where line voltage is what's available at the damper location, the TFB120 is the actuator and the HAC-44 is the product.\u003c\/p\u003e\n\u003cdiv class=\"hac44-desc__warning\"\u003e\n\u003cstrong\u003eIf 24 Vac is available at the damper location, use the HAC-40 (TFB24) instead.\u003c\/strong\u003e The HAC-40 has confirmed CSA certification to 12\", accepts 24 Vdc as well as 24 Vac, and the low-voltage wiring is typically already in place on BAS-controlled systems. The HAC-44 is the solution to a specific site condition (line voltage only), not a general upgrade over the HAC-40. The HAC-44 is not CSA certified.\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__bullets\"\u003e\n\u003cdiv class=\"hac44-desc__bullet\"\u003e\n\u003cspan class=\"hac44-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac44-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB120, 100–240 Vac direct\u003c\/strong\u003e. Accepts North American 120 Vac, 208\/240 Vac, and international line voltage across that full range; no transformer, no low-voltage run\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__bullet\"\u003e\n\u003cspan class=\"hac44-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac44-desc__bullet-text\"\u003e\u003cstrong\u003eSame damper body and spring return as HAC-40\u003c\/strong\u003e: identical on\/off fail-safe behavior; PO springs closed on power loss, PC springs open; blade position is always defined on loss of power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__bullet\"\u003e\n\u003cspan class=\"hac44-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac44-desc__bullet-text\"\u003e\u003cstrong\u003e6\"–20\" even-inch sizes\u003c\/strong\u003e: commercial and large residential duct range; same size availability as HAC-40\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__bullet\"\u003e\n\u003cspan class=\"hac44-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac44-desc__bullet-text\"\u003e\u003cstrong\u003eTFB120 field-replaceable\u003c\/strong\u003e: stocked through Belimo distributors; actuator replaces without disturbing the damper body or duct connections\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__bullet\"\u003e\n\u003cspan class=\"hac44-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac44-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and heat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; no relay on TFB120 motor code\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare\"\u003e\n\u003cdiv class=\"hac44-desc__compare-card hac44-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac44-desc__compare-title\"\u003eHAC-44 (TFB120): this product\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eOnly line voltage (100–240 Vac) available at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eRTU control panel or line-voltage contactor is the control source\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eRetrofit where adding low-voltage infrastructure is impractical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eIndustrial or commercial make-up air on line-voltage control\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-card hac44-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac44-desc__compare-title\"\u003eHAC-40 (TFB24): use instead when…\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003e24 Vac or 24 Vdc is already available at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eBAS or DDC control system with 24 Vac\/dc outputs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003eCSA certification up to 12\" is required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__compare-item\"\u003e\n\u003cspan class=\"hac44-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac44-desc__compare-text\"\u003e24 Vdc control output: TFB24 accepts either polarity DC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__specs\"\u003e\n\u003cdiv class=\"hac44-desc__spec hac44-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003eBelimo TFB120, 100–240 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eEnd Switch\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003eOptional (S prefix)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec hac44-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec hac44-desc__spec--red\"\u003e\n\u003cdiv class=\"hac44-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__spec-value\"\u003eNot available on TFB120\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__note\"\u003e\n\u003cstrong\u003eNeed modulating or floating point control at line voltage?\u003c\/strong\u003e The HAC-44 is on\/off only (2-position gate). For 3-wire floating point DDC control at 100–230 Vac see \u003ca href=\"\/products\/hac-belimo-cmb120-3-floating-point-230vac\"\u003eHAC-35 (Belimo CMB120-3)\u003c\/a\u003e. For a Belimo fire and smoke actuator at line voltage see \u003ca href=\"\/products\/hac-belimo-fslf120-fire-smoke-damper-120vac\"\u003eHAC-80 (Belimo FSLF120 US)\u003c\/a\u003e. For 24 Vac\/dc on\/off see \u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40 (TFB24)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac44-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac44-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo TFB120 field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43086469398571,"sku":"HAC-0644-OPO","price":682.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat (H)","offer_id":43086469431339,"sku":"HAC-0644-OPO-H","price":705.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard","offer_id":43086469464107,"sku":"HAC-0644-OPC","price":682.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Heat (H)","offer_id":43086469496875,"sku":"HAC-0644-OPC-H","price":705.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Standard","offer_id":43093573468203,"sku":"HAC-0644-SPO","price":715.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Heat 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(H)","offer_id":43093574221867,"sku":"HAC-1644-SPC-H","price":845.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard","offer_id":43086470185003,"sku":"HAC-1844-OPO","price":814.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Heat (H)","offer_id":43086470217771,"sku":"HAC-1844-OPO-H","price":836.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Standard","offer_id":43086470250539,"sku":"HAC-1844-OPC","price":814.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Heat (H)","offer_id":43086470283307,"sku":"HAC-1844-OPC-H","price":836.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Standard","offer_id":43093574254635,"sku":"HAC-1844-SPO","price":866.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093574287403,"sku":"HAC-1844-SPO-H","price":888.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Standard","offer_id":43093574320171,"sku":"HAC-1844-SPC","price":866.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093574352939,"sku":"HAC-1844-SPC-H","price":888.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard","offer_id":43086470316075,"sku":"HAC-2044-OPO","price":847.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Heat (H)","offer_id":43086470348843,"sku":"HAC-2044-OPO-H","price":870.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Standard","offer_id":43086470381611,"sku":"HAC-2044-OPC","price":847.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Heat (H)","offer_id":43086470414379,"sku":"HAC-2044-OPC-H","price":870.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Standard","offer_id":43093574385707,"sku":"HAC-2044-SPO","price":899.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093574418475,"sku":"HAC-2044-SPO-H","price":921.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Standard","offer_id":43093574451243,"sku":"HAC-2044-SPC","price":899.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093574484011,"sku":"HAC-2044-SPC-H","price":921.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/44.png?v=1775769769"},{"product_id":"hac-belimo-tfb24-sr-t-modulating-2-10vdc","title":"HAC-43 Inline Damper with Belimo TFB24-SR-T, Modulating Spring Return, 2–10 VDC, 24 Vac\/dc, 6\"–20\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac43-desc *{box-sizing:border-box;margin:0;padding:0;}.hac43-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac43-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac43-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac43-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac43-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac43-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac43-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac43-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac43-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac43-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac43-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac43-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac43-desc__table-wrap{overflow-x:auto;margin-bottom:20px;}.hac43-desc__table{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hac43-desc__table th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hac43-desc__table td{padding:7px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac43-desc__table tr:last-child td{border-bottom:none;}.hac43-desc__table tr:nth-child(even) td{background:#f8fafc;}.hac43-desc__table td:first-child{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac43-desc__selector-wrap{overflow-x:auto;margin-bottom:20px;}.hac43-desc__selector{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hac43-desc__selector th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hac43-desc__selector td{padding:8px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac43-desc__selector tr:last-child td{border-bottom:none;}.hac43-desc__selector tr.hac43-desc__selector-highlight td{background:#F3F6F8;}.hac43-desc__selector tr.hac43-desc__selector-highlight td:nth-child(2){font-family:'Montserrat',sans-serif;font-weight:800;color:#C8102E;}.hac43-desc__selector td:first-child{font-size:12.5px;}.hac43-desc__selector td:nth-child(2){font-family:'Montserrat',sans-serif;font-weight:700;color:#374151;font-size:12px;white-space:nowrap;}.hac43-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac43-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac43-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac43-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac43-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac43-desc__spec--highlight .hac43-desc__spec-label{color:rgba(255,255,255,0.5);}.hac43-desc__spec--highlight .hac43-desc__spec-value{color:#FFFFFF;}.hac43-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac43-desc__spec--amber .hac43-desc__spec-label{color:#92400e;}.hac43-desc__spec--amber .hac43-desc__spec-value{color:#92400e;}.hac43-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac43-desc__spec--red .hac43-desc__spec-label{color:#C8102E;}.hac43-desc__spec--red .hac43-desc__spec-value{color:#C8102E;}.hac43-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac43-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac43-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}\u003c\/style\u003e\n\u003cdiv class=\"hac43-desc\"\u003e\n\u003cp class=\"hac43-desc__intro\"\u003eHoyme inline damper body with Belimo TFB24-SR-T spring return modulating actuator. Proportional blade positioning via 2–10 VDC analog signal: the blade tracks the signal continuously from minimum to fully open. Spring return on power loss moves the blade to the fail-safe position. For BAS and DDC analog output control. Sizes 6\"–20\" in even-inch increments.\u003c\/p\u003e\n\u003cdiv class=\"hac43-desc__warning\"\u003e\n\u003cstrong\u003eConfirm action code with the mechanical engineer or DDC controls designer before ordering.\u003c\/strong\u003e The action code determines both the fail-safe direction on power loss and the signal-to-blade relationship: whether increasing voltage opens or closes the blade. The wrong action code means the blade modulates in the reverse direction relative to the control signal.\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullets\"\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003e2–10 VDC proportional blade positioning\u003c\/strong\u003e: blade tracks the analog signal continuously; 2 VDC = minimum position, 10 VDC = fully open, every point in between proportional\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003eSpring return fail-safe\u003c\/strong\u003e: on power loss the blade moves to the action-code position regardless of where it was in the modulating range; defined fail-safe on every power interruption\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo TFB24-SR-T: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors without disturbing duct connections\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac or 24 Vdc supply\u003c\/strong\u003e: either polarity on DC; suitable for BAS systems with 24 Vdc control power\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch available\u003c\/strong\u003e: optional position confirmation signal back to BAS digital input; no relay\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__bullet\"\u003e\n\u003cspan class=\"hac43-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac43-desc__bullet-text\"\u003e\u003cstrong\u003eNeed to hold last position on power loss instead?\u003c\/strong\u003e See \u003ca style=\"color: #c8102e; text-decoration: none; font-weight: 600;\" href=\"\/products\/hac-belimo-lmb24-sr-t-modulating-small-duct\"\u003eHAC-60 (LMB24-SR-T)\u003c\/a\u003e, same 2–10 VDC modulating control, no spring return\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__table-wrap\"\u003e\n\u003ctable class=\"hac43-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSignal (VDC)\u003c\/th\u003e\n\u003cth\u003eApproximate Blade Position\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.0 VDC\u003c\/td\u003e\n\u003ctd\u003eMinimum position: closed or minimum open per action code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.0 VDC\u003c\/td\u003e\n\u003ctd\u003e25% open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.0 VDC\u003c\/td\u003e\n\u003ctd\u003e50% open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8.0 VDC\u003c\/td\u003e\n\u003ctd\u003e75% open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10.0 VDC\u003c\/td\u003e\n\u003ctd\u003eFully open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__selector-wrap\"\u003e\n\u003ctable class=\"hac43-desc__selector\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIf your application needs…\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hac43-desc__selector-highlight\"\u003e\n\u003ctd\u003eProportional 0–100% via 2–10 VDC: spring return fail-safe\u003c\/td\u003e\n\u003ctd\u003eHAC-43\u003c\/td\u003e\n\u003ctd\u003eTFB24-SR-T: this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProportional 0–100% via 2–10 VDC: holds last position on power loss\u003c\/td\u003e\n\u003ctd\u003eHAC-60\u003c\/td\u003e\n\u003ctd\u003eLMB24-SR-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/off spring return gate, 2-position, 24 Vac\/dc\u003c\/td\u003e\n\u003ctd\u003eHAC-40\u003c\/td\u003e\n\u003ctd\u003eTFB24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-wire open\/stop\/close DDC floating point\u003c\/td\u003e\n\u003ctd\u003eHAC-34\u003c\/td\u003e\n\u003ctd\u003eCMB24-3-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/off spring return, 100–240 Vac line voltage\u003c\/td\u003e\n\u003ctd\u003eHAC-44\u003c\/td\u003e\n\u003ctd\u003eTFB120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFire and smoke actuator, 24 Vac (not a listed damper)\u003c\/td\u003e\n\u003ctd\u003eHAC-90\u003c\/td\u003e\n\u003ctd\u003eFSLF24 US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__specs\"\u003e\n\u003cdiv class=\"hac43-desc__spec hac43-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eControl Input\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003e2–10 VDC analog: proportional\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003eBelimo TFB24-SR-T\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003e24 Vac or 24 Vdc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003eSpring return: OPO or OPC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec hac43-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eAction Code\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003eConfirm with engineer before ordering\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eHeat Bypass\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003eAvailable (-H), 10% bypass\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec hac43-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac43-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__spec-value\"\u003eCSA certified up to 12\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__note\"\u003e\n\u003cstrong\u003eOn\/off sufficient for your application?\u003c\/strong\u003e If the damper just needs to be open when ventilation is called and closed when it isn't (no proportional positioning required), use the \u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40 (TFB24 on\/off)\u003c\/a\u003e. It's less expensive, the control circuit is simpler, and the commissioning is straightforward. Modulating control is required only when the application strategy demands proportional blade positioning: demand-controlled ventilation, mixed air temperature control, building pressure management, or VAV fresh air tracking.\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac43-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac43-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada · Belimo TFB24-SR-T field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086508982315,"sku":"HAC-0643-OPO","price":807.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch","offer_id":43086509015083,"sku":"HAC-0643-SPO","price":828.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509047851,"sku":"HAC-0643-OPC","price":807.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch","offer_id":43086509080619,"sku":"HAC-0643-SPC","price":828.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509113387,"sku":"HAC-0843-OPO","price":809.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch","offer_id":43086509146155,"sku":"HAC-0843-SPO","price":831.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509178923,"sku":"HAC-0843-OPC","price":809.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch","offer_id":43086509211691,"sku":"HAC-0843-SPC","price":831.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509244459,"sku":"HAC-1043-OPO","price":846.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ End Switch","offer_id":43086509277227,"sku":"HAC-1043-SPO","price":864.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509309995,"sku":"HAC-1043-OPC","price":846.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ End Switch","offer_id":43086509342763,"sku":"HAC-1043-SPC","price":864.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509375531,"sku":"HAC-1243-OPO","price":850.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ End Switch","offer_id":43086509408299,"sku":"HAC-1243-SPO","price":867.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509441067,"sku":"HAC-1243-OPC","price":850.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ End Switch","offer_id":43086509473835,"sku":"HAC-1243-SPC","price":867.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509506603,"sku":"HAC-1443-OPO","price":903.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ End Switch","offer_id":43086509539371,"sku":"HAC-1443-SPO","price":921.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509572139,"sku":"HAC-1443-OPC","price":903.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ End Switch","offer_id":43086509604907,"sku":"HAC-1443-SPC","price":921.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509637675,"sku":"HAC-1643-OPO","price":905.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ End Switch","offer_id":43086509670443,"sku":"HAC-1643-SPO","price":922.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509703211,"sku":"HAC-1643-OPC","price":905.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ End Switch","offer_id":43086509735979,"sku":"HAC-1643-SPC","price":922.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509768747,"sku":"HAC-1843-OPO","price":945.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ End Switch","offer_id":43086509801515,"sku":"HAC-1843-SPO","price":966.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509834283,"sku":"HAC-1843-OPC","price":945.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ End Switch","offer_id":43086509867051,"sku":"HAC-1843-SPC","price":966.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard (No End Switch)","offer_id":43086509899819,"sku":"HAC-2043-OPO","price":985.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ End Switch","offer_id":43086509932587,"sku":"HAC-2043-SPO","price":1000.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Standard (No End Switch)","offer_id":43086509965355,"sku":"HAC-2043-OPC","price":985.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ End Switch","offer_id":43086509998123,"sku":"HAC-2043-SPC","price":1000.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Hoyme-HAC-Belimo-lmb24-3-t2.jpg?v=1771431219"},{"product_id":"hac-belimo-cmb24-3-t-floating-point-24vac","title":"HAC-34 Inline Damper with Belimo CMB24-3-T, Floating Point, 3-Wire, 24 Vac\/dc, 6\"–20\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac34-desc *{box-sizing:border-box;margin:0;padding:0;}.hac34-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac34-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac34-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac34-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac34-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac34-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac34-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac34-desc__no-sr{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 18px;margin-bottom:20px;}.hac34-desc__no-sr-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#C8102E;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:6px;}.hac34-desc__no-sr-body{font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac34-desc__no-sr-body strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac34-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac34-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac34-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac34-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac34-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac34-desc__selector-wrap{overflow-x:auto;margin-bottom:20px;}.hac34-desc__selector{width:100%;border-collapse:collapse;font-size:12.5px;font-family:'Open Sans',sans-serif;}.hac34-desc__selector th{background:#001F3F;color:#FFFFFF;font-family:'Montserrat',sans-serif;font-weight:700;font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;padding:8px 12px;text-align:left;white-space:nowrap;}.hac34-desc__selector td{padding:8px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac34-desc__selector tr:last-child td{border-bottom:none;}.hac34-desc__selector tr.hac34-desc__selector-highlight td{background:#F3F6F8;}.hac34-desc__selector tr.hac34-desc__selector-highlight td:nth-child(2){font-family:'Montserrat',sans-serif;font-weight:800;color:#C8102E;}.hac34-desc__selector td:first-child{font-size:12.5px;}.hac34-desc__selector td:nth-child(2){font-family:'Montserrat',sans-serif;font-weight:700;color:#374151;font-size:12px;white-space:nowrap;}.hac34-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac34-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac34-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac34-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac34-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac34-desc__spec--highlight .hac34-desc__spec-label{color:rgba(255,255,255,0.5);}.hac34-desc__spec--highlight .hac34-desc__spec-value{color:#FFFFFF;}.hac34-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac34-desc__spec--red .hac34-desc__spec-label{color:#C8102E;}.hac34-desc__spec--red .hac34-desc__spec-value{color:#C8102E;}.hac34-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac34-desc__spec--amber .hac34-desc__spec-label{color:#92400e;}.hac34-desc__spec--amber .hac34-desc__spec-value{color:#92400e;}.hac34-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac34-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac34-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}\u003c\/style\u003e\n\u003cdiv class=\"hac34-desc\"\u003e\n\u003cp class=\"hac34-desc__intro\"\u003eHoyme inline damper body with Belimo CMB24-3-T 3-wire floating point actuator. Three control wires (Open, Stop, Close) give the DDC controller direct incremental blade positioning: energize Open to move the blade toward open, energize Close to move it toward closed, de-energize both to hold position. No spring return. Sizes 6\"–20\" in even-inch increments.\u003c\/p\u003e\n\u003cdiv class=\"hac34-desc__no-sr\"\u003e\n\u003cdiv class=\"hac34-desc__no-sr-title\"\u003e⚠ No Spring Return: Holds Last Position on Power Loss\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__no-sr-body\"\u003eThe CMB24-3-T has no spring return. On power loss, the blade holds wherever it was. It does not move to a defined open or closed fail-safe position. \u003cstrong\u003eIf your application requires the damper to move to a defined position on power loss\u003c\/strong\u003e, whether to seal the duct on power interruption or to guarantee ventilation continues regardless of electrical state, this is not the correct product. Use a spring return actuator: \u003cstrong\u003eHAC-40 (TFB24)\u003c\/strong\u003e for on\/off, or \u003cstrong\u003eHAC-43 (TFB24-SR-T)\u003c\/strong\u003e for modulating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullets\"\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003e3-wire floating point: Open \/ Stop \/ Close\u003c\/strong\u003e. The DDC controller energizes Open or Close to move the blade incrementally; de-energizes both to hold current position; blade stays exactly where the DDC leaves it\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo CMB24-3-T: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors without disturbing duct connections\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac or 24 Vdc supply\u003c\/strong\u003e: either polarity on DC; compatible with BAS control power that outputs DC rather than AC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch available on all sizes\u003c\/strong\u003e: confirms physical blade position back to BAS digital input; useful on floating point systems where the DDC infers position from pulse timing. End switch gives definitive confirmation when the blade reaches its travel limit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003eHeat bypass (-H) available on all sizes\u003c\/strong\u003e: 10% bypass machined into blade at factory for hot air supply duct zone control; do not specify -H on fresh air, make-up air, or ventilation applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__bullet\"\u003e\n\u003cspan class=\"hac34-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac34-desc__bullet-text\"\u003e\u003cstrong\u003eNeed lighter-duty floating point at 24 Vac\/dc?\u003c\/strong\u003e See \u003ca style=\"color: #c8102e; text-decoration: none; font-weight: 600;\" href=\"\/products\/hac-belimo-lmb24-3-t-floating-point-small-duct\"\u003eHAC-30 (LMB24-3-T)\u003c\/a\u003e, same 3-wire architecture, lower torque rating; or \u003ca style=\"color: #c8102e; text-decoration: none; font-weight: 600;\" href=\"\/products\/hac-belimo-cmb120-3-floating-point-230vac\"\u003eHAC-35 (CMB120-3)\u003c\/a\u003e for line voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__warning\"\u003e\n\u003cstrong\u003eConfirm 3-wire terminal assignments with the DDC controls designer before wiring.\u003c\/strong\u003e The CMB24-3-T uses an OPP action code: blade direction is controlled by which wire the DDC energizes, not by a factory PO\/PC setting. Confirm Open, Close, and common terminal wiring against the DDC output card specification before installation.\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__selector-wrap\"\u003e\n\u003ctable class=\"hac34-desc__selector\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIf your application needs…\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hac34-desc__selector-highlight\"\u003e\n\u003ctd\u003e3-wire floating point DDC, 24 Vac\/dc, holds last position\u003c\/td\u003e\n\u003ctd\u003eHAC-34\u003c\/td\u003e\n\u003ctd\u003eCMB24-3-T: this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-wire floating point DDC, 24 Vac\/dc, lighter-duty torque\u003c\/td\u003e\n\u003ctd\u003eHAC-30\u003c\/td\u003e\n\u003ctd\u003eLMB24-3-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-wire floating point DDC, 100–230 Vac line voltage\u003c\/td\u003e\n\u003ctd\u003eHAC-35\u003c\/td\u003e\n\u003ctd\u003eCMB120-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/off 2-wire spring return gate, 24 Vac\/dc\u003c\/td\u003e\n\u003ctd\u003eHAC-40\u003c\/td\u003e\n\u003ctd\u003eTFB24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProportional 2–10 VDC: spring return fail-safe\u003c\/td\u003e\n\u003ctd\u003eHAC-43\u003c\/td\u003e\n\u003ctd\u003eTFB24-SR-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFire and smoke actuator, 24 Vac (not a listed damper)\u003c\/td\u003e\n\u003ctd\u003eHAC-90\u003c\/td\u003e\n\u003ctd\u003eFSLF24 US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__specs\"\u003e\n\u003cdiv class=\"hac34-desc__spec hac34-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eControl Type\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003e3-wire floating point: Open \/ Stop \/ Close\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec hac34-desc__spec--red\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003eHolds last position, no spring return\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003eBelimo CMB24-3-T\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003e24 Vac or 24 Vdc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eEnd Switch\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003eOptional (S prefix)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eHeat Bypass (-H)\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003eAvailable all sizes: hot air zone only\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec hac34-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac34-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__note\"\u003e\n\u003cstrong\u003eOrdering the -H heat bypass variant?\u003c\/strong\u003e The -H suffix indicates the 10% heat bypass blade for hot air supply duct zone control. Do not specify -H on fresh air intake, make-up air, or ventilation applications: the bypass allows continuous outdoor air infiltration when the damper is commanded closed.\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac34-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac34-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo CMB24-3-T field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088072605739,"sku":"HAC-0634-OPP","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088072638507,"sku":"HAC-0634-OPP-H","price":403.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ End Switch \/ Standard Air","offer_id":43088072671275,"sku":"HAC-0634-SPP","price":384.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ End Switch \/ Heat Option (-H)","offer_id":43088072704043,"sku":"HAC-0634-SPP-H","price":408.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088072736811,"sku":"HAC-0834-OPP","price":425.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088072769579,"sku":"HAC-0834-OPP-H","price":407.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ End Switch \/ Standard Air","offer_id":43088072802347,"sku":"HAC-0834-SPP","price":387.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ End Switch \/ Heat Option (-H)","offer_id":43088072835115,"sku":"HAC-0834-SPP-H","price":409.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088072867883,"sku":"HAC-1034-OPP","price":461.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088072900651,"sku":"HAC-1034-OPP-H","price":440.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ End Switch \/ Standard Air","offer_id":43088072933419,"sku":"HAC-1034-SPP","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ End Switch \/ Heat Option (-H)","offer_id":43088072966187,"sku":"HAC-1034-SPP-H","price":442.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088072998955,"sku":"HAC-1234-OPP","price":466.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088073031723,"sku":"HAC-1234-OPP-H","price":443.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ End Switch \/ Standard Air","offer_id":43088073064491,"sku":"HAC-1234-SPP","price":426.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ End Switch \/ Heat Option (-H)","offer_id":43088073097259,"sku":"HAC-1234-SPP-H","price":447.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088073130027,"sku":"HAC-1434-OPP","price":524.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088073162795,"sku":"HAC-1434-OPP-H","price":494.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ End Switch \/ Standard Air","offer_id":43088073195563,"sku":"HAC-1434-SPP","price":477.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ End Switch \/ Heat Option (-H)","offer_id":43088073228331,"sku":"HAC-1434-SPP-H","price":496.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088073261099,"sku":"HAC-1634-OPP","price":524.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088073293867,"sku":"HAC-1634-OPP-H","price":495.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ End Switch \/ Standard Air","offer_id":43088073326635,"sku":"HAC-1634-SPP","price":477.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ End Switch \/ Heat Option (-H)","offer_id":43088073359403,"sku":"HAC-1634-SPP-H","price":498.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088073392171,"sku":"HAC-1834-OPP","price":565.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088073424939,"sku":"HAC-1834-OPP-H","price":535.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ End Switch \/ Standard Air","offer_id":43088073457707,"sku":"HAC-1834-SPP","price":516.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ End Switch \/ Heat Option (-H)","offer_id":43088073490475,"sku":"HAC-1834-SPP-H","price":538.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard (No End Switch) \/ Standard Air","offer_id":43088073523243,"sku":"HAC-2034-OPP","price":607.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard (No End Switch) \/ Heat Option (-H)","offer_id":43088073556011,"sku":"HAC-2034-OPP-H","price":571.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ End Switch \/ Standard Air","offer_id":43088073588779,"sku":"HAC-2034-SPP","price":553.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ End Switch \/ Heat Option (-H)","offer_id":43088073621547,"sku":"HAC-2034-SPP-H","price":573.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Screenshot2026-02-20093721.png?v=1775769469"},{"product_id":"hac-belimo-lmb24-sr-t-modulating-small-duct","title":"HAC-60 Inline Damper with Belimo LMB24-SR-T, Modulating, 2–10 VDC, 24 Vac\/dc, 6\"–20\", Holds Last Position","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac60-desc *{box-sizing:border-box;margin:0;padding:0;}.hac60-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac60-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac60-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac60-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac60-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac60-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac60-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac60-desc__nocert{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 18px;margin-bottom:20px;}.hac60-desc__nocert-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#C8102E;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:6px;}.hac60-desc__nocert-body{font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac60-desc__nocert-body strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac60-desc__nocert-body a{color:#C8102E;text-decoration:none;font-weight:600;}.hac60-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac60-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac60-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac60-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac60-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac60-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hac60-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hac60-desc__compare-card--red{border-top:3px solid #C8102E;}.hac60-desc__compare-card--navy{border-top:3px solid #001F3F;}.hac60-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#001F3F;margin-bottom:10px;}.hac60-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.hac60-desc__compare-item:last-child{margin-bottom:0;}.hac60-desc__compare-dot--red{color:#C8102E;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac60-desc__compare-dot--navy{color:#001F3F;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac60-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hac60-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac60-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac60-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac60-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac60-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac60-desc__spec--red .hac60-desc__spec-label{color:#C8102E;}.hac60-desc__spec--red .hac60-desc__spec-value{color:#C8102E;}.hac60-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac60-desc__spec--highlight .hac60-desc__spec-label{color:rgba(255,255,255,0.5);}.hac60-desc__spec--highlight .hac60-desc__spec-value{color:#FFFFFF;}.hac60-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac60-desc__spec--amber .hac60-desc__spec-label{color:#92400e;}.hac60-desc__spec--amber .hac60-desc__spec-value{color:#92400e;}.hac60-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac60-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac60-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac60-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac60-desc\"\u003e\n\u003cp class=\"hac60-desc__intro\"\u003eHoyme inline damper body with Belimo LMB24-SR-T modulating actuator. Proportional blade positioning via 2–10 VDC analog signal, same control input as the HAC-43 (TFB24-SR-T). One difference: the LMB24-SR-T has no spring return. On power loss, the blade holds its last position rather than moving to a defined fail-safe state. Sizes 6\"–20\" in even-inch increments.\u003c\/p\u003e\n\u003cdiv class=\"hac60-desc__nocert\"\u003e\n\u003cdiv class=\"hac60-desc__nocert-title\"\u003e⚠ No Spring Return: Holds Last Position on Power Loss\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__nocert-body\"\u003eOn power loss, the HAC-60 blade stays at its last position. It does not move to a defined open or closed fail-safe position. \u003cstrong\u003eIf your application requires the damper to move to a defined position on power loss\u003c\/strong\u003e, whether to close and seal the duct or to open and ensure ventilation, use the \u003ca href=\"\/products\/hac-belimo-tfb24-sr-t-modulating-2-10vdc\"\u003eHAC-43 (TFB24-SR-T)\u003c\/a\u003e, which provides the same 2–10 VDC modulating control with spring return fail-safe.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__bullets\"\u003e\n\u003cdiv class=\"hac60-desc__bullet\"\u003e\n\u003cspan class=\"hac60-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac60-desc__bullet-text\"\u003e\u003cstrong\u003e2–10 VDC proportional blade positioning\u003c\/strong\u003e: same control input as HAC-43; blade tracks the analog signal continuously across the full range of travel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__bullet\"\u003e\n\u003cspan class=\"hac60-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac60-desc__bullet-text\"\u003e\u003cstrong\u003eHolds last position on power loss\u003c\/strong\u003e: preferred behavior on most commercial BAS installations; avoids abrupt airflow changes on brief power interruptions while the DDC resumes control\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__bullet\"\u003e\n\u003cspan class=\"hac60-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac60-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo LMB24-SR-T: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__bullet\"\u003e\n\u003cspan class=\"hac60-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac60-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac or 24 Vdc supply\u003c\/strong\u003e: compatible with BAS and DDC analog output cards; same supply flexibility as HAC-43\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__bullet\"\u003e\n\u003cspan class=\"hac60-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n\u003cspan class=\"hac60-desc__bullet-text\"\u003e\u003cstrong\u003eHeat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; for hot air supply duct zone control only; do not specify -H on fresh air or ventilation applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare\"\u003e\n\u003cdiv class=\"hac60-desc__compare-card hac60-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac60-desc__compare-title\"\u003eHAC-60 (LMB24-SR-T): this product\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003e2–10 VDC modulating: holds last position on power loss\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eBAS resumes control after power event, no abrupt airflow change on interruption\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eHolds-last-position is acceptable: DDC manages recovery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eLighter actuator torque class: sufficient for smaller and mid-range sizes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-card hac60-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac60-desc__compare-title\"\u003eHAC-43 (TFB24-SR-T): use instead when…\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eSpring return to defined position required on power loss\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eDuct must seal completely if power is lost\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eVentilation must be guaranteed regardless of power state\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__compare-item\"\u003e\n\u003cspan class=\"hac60-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac60-desc__compare-text\"\u003eHigher torque class needed for larger blade areas\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__warning\"\u003e\n\u003cstrong\u003eConfirm action code (OPP vs. SPP) with the mechanical engineer or DDC controls designer before ordering.\u003c\/strong\u003e The action code determines the signal-to-blade direction relationship: whether increasing VDC opens or closes the blade must match the BAS control sequence. Confirm with Belimo LMB24-SR-T documentation for the specific configuration required.\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__specs\"\u003e\n\u003cdiv class=\"hac60-desc__spec hac60-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eControl Input\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003e2–10 VDC analog: proportional\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec hac60-desc__spec--red\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003eHolds last position, no spring return\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003eBelimo LMB24-SR-T\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003e24 Vac or 24 Vdc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec hac60-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eEnd Switch\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003eNot in standard variants: confirm with Hoyme\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec hac60-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac60-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__note\"\u003e\n\u003cstrong\u003eNeed spring return fail-safe with modulating control?\u003c\/strong\u003e Use \u003ca href=\"\/products\/hac-belimo-tfb24-sr-t-modulating-2-10vdc\"\u003eHAC-43 (TFB24-SR-T)\u003c\/a\u003e, same 2–10 VDC proportional control, spring return to defined fail-safe position on power loss. If on\/off is sufficient for your application, use \u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40 (TFB24)\u003c\/a\u003e, less expensive, simpler wiring, spring return included. For 3-wire floating point DDC control see \u003ca href=\"\/products\/hac-belimo-cmb24-3-t-floating-point-24vac\"\u003eHAC-34 (CMB24-3-T)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac60-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac60-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo LMB24-SR-T field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393282091,"sku":"HAC-0660-OPP","price":558.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395117099,"sku":"HAC-0660-OPP-H","price":582.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394691115,"sku":"HAC-0660-SPP","price":578.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395149867,"sku":"HAC-0660-SPP-H","price":601.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393314859,"sku":"HAC-0860-OPP","price":560.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395182635,"sku":"HAC-0860-OPP-H","price":584.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394723883,"sku":"HAC-0860-SPP","price":580.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395215403,"sku":"HAC-0860-SPP-H","price":603.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393347627,"sku":"HAC-1060-OPP","price":594.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395248171,"sku":"HAC-1060-OPP-H","price":615.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394756651,"sku":"HAC-1060-SPP","price":613.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Heat Option 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(-H)","offer_id":43091395379243,"sku":"HAC-1460-OPP-H","price":670.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394822187,"sku":"HAC-1460-SPP","price":668.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395412011,"sku":"HAC-1460-SPP-H","price":689.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393445931,"sku":"HAC-1660-OPP","price":651.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395444779,"sku":"HAC-1660-OPP-H","price":671.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394854955,"sku":"HAC-1660-SPP","price":669.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395477547,"sku":"HAC-1660-SPP-H","price":690.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393478699,"sku":"HAC-1860-OPP","price":690.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395510315,"sku":"HAC-1860-OPP-H","price":713.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394887723,"sku":"HAC-1860-SPP","price":708.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395543083,"sku":"HAC-1860-SPP-H","price":733.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard Air","offer_id":43091393511467,"sku":"HAC-2060-OPP","price":726.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Heat Option (-H)","offer_id":43091395575851,"sku":"HAC-2060-OPP-H","price":746.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Standard Air","offer_id":43091394920491,"sku":"HAC-2060-SPP","price":744.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Heat Option (-H)","offer_id":43091395608619,"sku":"HAC-2060-SPP-H","price":767.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_70.png?v=1775768069"},{"product_id":"hac-12l-insulated-inline-damper-120vac-4-9-cold-climate","title":"HAC-12L Insulated Inline Fresh Air Damper, 120 Vac, Built-In Transformer, Factory-Insulated Body, 4\"–9\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hac12l-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac12l-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac12l-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac12l-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac12l-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac12l-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac12l-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12l-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac12l-desc__dual-warning { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }\n  .hac12l-desc__dual-warning-item { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.55; }\n  .hac12l-desc__dual-warning-icon { color: #C8102E; font-weight: 800; font-size: 14px; flex-shrink: 0; line-height: 1.55; }\n  .hac12l-desc__dual-warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac12l-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac12l-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac12l-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac12l-desc__table-wrap { overflow-x: auto; margin-bottom: 20px; }\n  .hac12l-desc__table { width: 100%; border-collapse: collapse; font-size: 12.5px; font-family: 'Open Sans', sans-serif; }\n  .hac12l-desc__table th { background: #001F3F; color: #FFFFFF; font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; padding: 9px 14px; text-align: left; white-space: nowrap; }\n  .hac12l-desc__table td { padding: 8px 14px; border-bottom: 1px solid #e2e8f0; color: #001F3F; vertical-align: top; }\n  .hac12l-desc__table tr:last-child td { border-bottom: none; }\n  .hac12l-desc__table tr.hac12l-desc__table-highlight td { background: #F3F6F8; }\n  .hac12l-desc__table tr.hac12l-desc__table-highlight td:last-child { font-family: 'Montserrat', sans-serif; font-weight: 800; color: #C8102E; }\n  .hac12l-desc__table td:last-child { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #374151; font-size: 12px; white-space: nowrap; }\n\n  .hac12l-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac12l-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac12l-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hac12l-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac12l-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac12l-desc__spec--highlight .hac12l-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac12l-desc__spec--highlight .hac12l-desc__spec-value { color: #FFFFFF; }\n  .hac12l-desc__spec--highlight2 { background: #001F3F; border-color: #001F3F; }\n  .hac12l-desc__spec--highlight2 .hac12l-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac12l-desc__spec--highlight2 .hac12l-desc__spec-value { color: #FFFFFF; }\n  .hac12l-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac12l-desc__spec--amber .hac12l-desc__spec-label { color: #92400e; }\n  .hac12l-desc__spec--amber .hac12l-desc__spec-value { color: #92400e; }\n\n  .hac12l-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac12l-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac12l-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hac12l-desc\"\u003e\n\n  \u003cp class=\"hac12l-desc__intro\"\u003eThe HAC-12L combines two features in one unit: the 120 Vac built-in transformer of the HAC-12 and the factory-insulated body of the HAC-L. For one specific situation: a fresh air damper location that is both on a 120 Vac site and in unconditioned or semi-conditioned space where condensation on the damper body is a concern. Both conditions must be present. If only one applies, one of the single-feature variants is the correct order. CSA certified. Sizes 4\"–9\".\u003c\/p\u003e\n\n  \u003cdiv class=\"hac12l-desc__dual-warning\"\u003e\n    \u003cdiv class=\"hac12l-desc__dual-warning-item\"\u003e\n      \u003cspan class=\"hac12l-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eDo not supply 24 Vac to a HAC-12L.\u003c\/strong\u003e The built-in transformer requires 120 Vac input. Supplying 24 Vac will result in product damage and will not operate the damper.\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__dual-warning-item\"\u003e\n      \u003cspan class=\"hac12l-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eThe HAC-12L insulates the damper body only.\u003c\/strong\u003e The duct run from the exterior penetration to the HAC-12L still requires insulation per code: insulate the duct separately.\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac12l-desc__bullets\"\u003e\n\n    \u003cdiv class=\"hac12l-desc__bullet\"\u003e\n      \u003cspan class=\"hac12l-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12l-desc__bullet-text\"\u003e\u003cstrong\u003eBuilt-in 120 Vac to 24 Vac transformer\u003c\/strong\u003e: one switched 120 Vac circuit to the damper; no separate transformer, no low-voltage wiring run required\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12l-desc__bullet\"\u003e\n      \u003cspan class=\"hac12l-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12l-desc__bullet-text\"\u003e\u003cstrong\u003eFactory insulation: applied before assembly\u003c\/strong\u003e. Covers the actuator housing, motor lead exits, and collar joint where field-wrapping fails first; not field-applied foam tape\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12l-desc__bullet\"\u003e\n      \u003cspan class=\"hac12l-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12l-desc__bullet-text\"\u003e\u003cstrong\u003eSame spring return operation as the standard HAC\u003c\/strong\u003e: Hansen motor with 24 Vac spring return internally; same PO\/PC fail-safe behavior\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12l-desc__bullet\"\u003e\n      \u003cspan class=\"hac12l-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12l-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac12l-desc__bullet\"\u003e\n      \u003cspan class=\"hac12l-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac12l-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch available\u003c\/strong\u003e: all factory-installed; relay not available on motor code 12; confirm action before ordering\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac12l-desc__table-wrap\"\u003e\n    \u003ctable class=\"hac12l-desc__table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eJob Condition\u003c\/th\u003e\n          \u003cth\u003eRight Product\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr class=\"hac12l-desc__table-highlight\"\u003e\n          \u003ctd\u003e120 Vac + cold climate \/ unconditioned damper location (insulation needed)\u003c\/td\u003e\n          \u003ctd\u003eHAC-12L: this product\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e120 Vac + fresh air \/ make-up air, conditioned damper location\u003c\/td\u003e\n          \u003ctd\u003eHAC-12\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e120 Vac + hot air duct zone control (bypass needed), conditioned location\u003c\/td\u003e\n          \u003ctd\u003eHAC-12H\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e24 Vac + cold climate \/ unconditioned damper location\u003c\/td\u003e\n          \u003ctd\u003eHAC-L\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e24 Vac + hot air zone control (bypass needed)\u003c\/td\u003e\n          \u003ctd\u003eHAC-H\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e120 Vac + cold climate AND hot air zone control (bypass + insulation)\u003c\/td\u003e\n          \u003ctd\u003eContact Hoyme\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac12l-desc__specs\"\u003e\n    \u003cdiv class=\"hac12l-desc__spec hac12l-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003e120 Vac: built-in transformer\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__spec hac12l-desc__spec--highlight2\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eInsulation\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003eFactory, not field-wrapped\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__spec\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003e4\"–9\"\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__spec\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eAction\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__spec\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac12l-desc__spec hac12l-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac12l-desc__spec-label\"\u003eRelay\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__spec-value\"\u003eNot available on motor code 12\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"hac12l-desc__note\"\u003e\n    \u003cstrong\u003eNeed relay output or an ADP furnace fan interlock?\u003c\/strong\u003e Motor code 12 does not include relay capability on any 120 Vac variant. For cold climate fresh air with relay and ADP interlock, use the \u003ca href=\"\/products\/hac-12l-insulated-inline-damper-120vac\"\u003eHAC-L (24 Vac)\u003c\/a\u003e with the relay option and the appropriate \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP relay adaptor\u003c\/a\u003e. If the site is 120 Vac only, discuss a line-voltage relay approach with your controls supplier.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac12l-desc__warranty\"\u003e\n    \u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"hac12l-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"hac12l-desc__warranty-sub\"\u003eCSA certified  ·  Made in Canada  ·  Built for Canadian winters\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543406123,"sku":"HAC-0412-OPO-L","price":249.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch","offer_id":43092547436587,"sku":"HAC-0412-SPO-L","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547469355,"sku":"HAC-0412-OPC-L","price":249.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ End Switch","offer_id":43092547502123,"sku":"HAC-0412-SPC-L","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543438891,"sku":"HAC-0512-OPO-L","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch","offer_id":43092547534891,"sku":"HAC-0512-SPO-L","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547567659,"sku":"HAC-0512-OPC-L","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch","offer_id":43092547600427,"sku":"HAC-0512-SPC-L","price":278.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543471659,"sku":"HAC-0612-OPO-L","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch","offer_id":43092547633195,"sku":"HAC-0612-SPO-L","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547665963,"sku":"HAC-0612-OPC-L","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch","offer_id":43092547698731,"sku":"HAC-0612-SPC-L","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543504427,"sku":"HAC-0712-OPO-L","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch","offer_id":43092547731499,"sku":"HAC-0712-SPO-L","price":284.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547764267,"sku":"HAC-0712-OPC-L","price":256.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch","offer_id":43092547797035,"sku":"HAC-0712-SPC-L","price":284.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543537195,"sku":"HAC-0812-OPO-L","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch","offer_id":43092547829803,"sku":"HAC-0812-SPO-L","price":285.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547862571,"sku":"HAC-0812-OPC-L","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch","offer_id":43092547895339,"sku":"HAC-0812-SPC-L","price":285.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ No End Switch","offer_id":43092543569963,"sku":"HAC-0912-OPO-L","price":262.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Open (PO) \/ End Switch","offer_id":43092547928107,"sku":"HAC-0912-SPO-L","price":288.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ No End Switch","offer_id":43092547960875,"sku":"HAC-0912-OPC-L","price":262.0,"currency_code":"CAD","in_stock":true},{"title":"9\" \/ Power Close (PC) \/ End Switch","offer_id":43092547993643,"sku":"HAC-0912-SPC-L","price":288.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_72.png?v=1775768341"},{"product_id":"hac-belimo-lmb24-3-t-floating-point-small-duct","title":"HAC-30 Inline Damper with Belimo LMB24-3-T, Floating Point, 3-Wire, 24 Vac\/dc, 6\"–20\", Holds Last Position","description":"\u003cstyle\u003e.hac30-desc *{box-sizing:border-box;margin:0;padding:0;}.hac30-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac30-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac30-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac30-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac30-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac30-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac30-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac30-desc__nocert{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 18px;margin-bottom:20px;}.hac30-desc__nocert-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#C8102E;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:6px;}.hac30-desc__nocert-body{font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac30-desc__nocert-body strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac30-desc__nocert-body a{color:#C8102E;text-decoration:none;font-weight:600;}.hac30-desc__warning{background:#fff3f4;border-left:4px solid #C8102E;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac30-desc__warning strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#C8102E;}.hac30-desc__note{background:#F3F6F8;border-left:4px solid #001F3F;border-radius:0 4px 4px 0;padding:12px 16px;margin-bottom:20px;font-size:13.5px;color:#001F3F;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac30-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac30-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac30-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hac30-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hac30-desc__compare-card--red{border-top:3px solid #C8102E;}.hac30-desc__compare-card--navy{border-top:3px solid #001F3F;}.hac30-desc__compare-title{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:#001F3F;margin-bottom:10px;}.hac30-desc__compare-item{display:flex;align-items:flex-start;gap:7px;margin-bottom:5px;}.hac30-desc__compare-item:last-child{margin-bottom:0;}.hac30-desc__compare-dot--red{color:#C8102E;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac30-desc__compare-dot--navy{color:#001F3F;font-weight:700;font-size:13px;flex-shrink:0;line-height:1.5;}.hac30-desc__compare-text{font-size:12.5px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.45;}.hac30-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac30-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac30-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac30-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac30-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac30-desc__spec--red .hac30-desc__spec-label{color:#C8102E;}.hac30-desc__spec--red .hac30-desc__spec-value{color:#C8102E;}.hac30-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac30-desc__spec--highlight .hac30-desc__spec-label{color:rgba(255,255,255,0.5);}.hac30-desc__spec--highlight .hac30-desc__spec-value{color:#FFFFFF;}.hac30-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac30-desc__spec--amber .hac30-desc__spec-label{color:#92400e;}.hac30-desc__spec--amber .hac30-desc__spec-value{color:#92400e;}.hac30-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac30-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac30-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac30-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac30-desc\"\u003e\n\u003cp class=\"hac30-desc__intro\"\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"hac30-desc__intro\"\u003eHoyme inline damper body with Belimo LMB24-3-T 3-wire floating point actuator: the lighter-duty companion to the HAC-34 (CMB24-3-T). Same Open \/ Stop \/ Close 3-wire control architecture, same holds-last-position behavior on power loss, same 6\"–20\" size range. The practical distinction is torque: the LMB24-3-T suits smaller and mid-range duct sizes where the CMB's higher torque is not required. When the spec names LMB24-3-T, this is the product.\u003c\/p\u003e\n\u003cdiv class=\"hac30-desc__nocert\"\u003e\n\u003cdiv class=\"hac30-desc__nocert-title\"\u003e⚠ No Spring Return: Holds Last Position on Power Loss\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__nocert-body\"\u003eOn power loss, the HAC-30 blade stays at its last position. It does not move to a defined open or closed fail-safe position. \u003cstrong\u003eIf your application requires the damper to move to a defined position on power loss\u003c\/strong\u003e, use a spring return product: \u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40 (TFB24)\u003c\/a\u003e for on\/off or \u003ca href=\"\/products\/hac-belimo-tfb24-sr-t-modulating-2-10vdc\"\u003eHAC-43 (TFB24-SR-T)\u003c\/a\u003e for modulating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__bullets\"\u003e\n\u003cdiv class=\"hac30-desc__bullet\"\u003e\n\u003cspan class=\"hac30-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac30-desc__bullet-text\"\u003e\u003cstrong\u003e3-wire floating point: Open \/ Stop \/ Close\u003c\/strong\u003e. DDC controller pulses the Open or Close wire to position the blade incrementally; neither energized = blade holds position\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__bullet\"\u003e\n\u003cspan class=\"hac30-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac30-desc__bullet-text\"\u003e\u003cstrong\u003eLMB24-3-T: lighter torque class than CMB24-3-T\u003c\/strong\u003e. Appropriate for smaller and mid-range duct sizes at moderate static pressure; if in doubt on torque adequacy, specify HAC-34 (CMB)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__bullet\"\u003e\n\u003cspan class=\"hac30-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac30-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo LMB24-3-T: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__bullet\"\u003e\n\u003cspan class=\"hac30-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac30-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac or 24 Vdc supply\u003c\/strong\u003e: compatible with Johnson Controls, Siemens, Honeywell, Automated Logic, and other BAS platforms with floating point output cards\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__bullet\"\u003e\n\u003cspan class=\"hac30-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac30-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and heat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; end switch provides definitive position confirmation when blade reaches fully open or fully closed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare\"\u003e\n\u003cdiv class=\"hac30-desc__compare-card hac30-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac30-desc__compare-title\"\u003eHAC-30 (LMB24-3-T): this product\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eSpec names LMB24-3-T or is actuator-neutral\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eSmaller and mid-range duct sizes at moderate static pressure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eLower torque class is confirmed adequate for the application\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eSame LMB actuator family as HAC-60: familiar parts chain\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-card hac30-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac30-desc__compare-title\"\u003eHAC-34 (CMB24-3-T): use instead when…\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eSpec names CMB24-3-T specifically\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eLarger duct sizes or higher static pressure applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eTorque adequacy of LMB is uncertain: CMB is the safer choice\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__compare-item\"\u003e\n\u003cspan class=\"hac30-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac30-desc__compare-text\"\u003eOver-torquing causes no harm; under-torquing causes missed blade travel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__warning\"\u003e\n\u003cstrong\u003eDo not specify -H heat bypass on fresh air intake, make-up air, or ventilation applications.\u003c\/strong\u003e The 10% bypass allows continuous outdoor air infiltration when the damper is at minimum position. Specify -H only for hot air supply duct zone control on single-speed furnace systems.\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__specs\"\u003e\n\u003cdiv class=\"hac30-desc__spec hac30-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eControl\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003e3-wire floating point: Open \/ Stop \/ Close\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec hac30-desc__spec--red\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003eHolds last position, no spring return\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003eBelimo LMB24-3-T\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003e24 Vac or 24 Vdc\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec hac30-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eTorque\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003eLower class: confirm for size and pressure\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec hac30-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac30-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__spec-value\"\u003eCSA certified up to 12\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__note\"\u003e\n\u003cstrong\u003eSpec calls for CMB24-3-T, or torque adequacy is uncertain?\u003c\/strong\u003e Use \u003ca href=\"\/products\/hac-belimo-cmb24-3-t-floating-point-24vac\"\u003eHAC-34 (CMB24-3-T)\u003c\/a\u003e, same 3-wire floating point architecture, higher torque class. For line voltage floating point (100–230 Vac) see \u003ca href=\"\/products\/hac-belimo-cmb120-3-floating-point-230vac\"\u003eHAC-35 (CMB120-3)\u003c\/a\u003e. For 2–10 VDC modulating with the LMB actuator family see \u003ca href=\"\/products\/hac-belimo-lmb24-sr-t-modulating-small-duct\"\u003eHAC-60 (LMB24-SR-T)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac30-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac30-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo LMB24-3-T field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Standard \/ No","offer_id":43092559036459,"sku":"HAC-0630-OPP","price":384.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Standard \/ Yes","offer_id":43092559069227,"sku":"HAC-0630-OPP-H","price":408.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ With End Switch \/ No","offer_id":43092559101995,"sku":"HAC-0630-SPP","price":404.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ With End Switch \/ Yes","offer_id":43092559134763,"sku":"HAC-0630-SPP-H","price":427.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard \/ No","offer_id":43092559167531,"sku":"HAC-0830-OPP","price":387.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard \/ Yes","offer_id":43092559200299,"sku":"HAC-0830-OPP-H","price":410.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ With End Switch \/ No","offer_id":43092559233067,"sku":"HAC-0830-SPP","price":406.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ With End Switch \/ Yes","offer_id":43092559265835,"sku":"HAC-0830-SPP-H","price":429.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard \/ No","offer_id":43092559298603,"sku":"HAC-1030-OPP","price":421.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard \/ Yes","offer_id":43092559331371,"sku":"HAC-1030-OPP-H","price":441.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ With End Switch \/ No","offer_id":43092559364139,"sku":"HAC-1030-SPP","price":439.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ With End Switch \/ Yes","offer_id":43092559396907,"sku":"HAC-1030-SPP-H","price":461.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard \/ No","offer_id":43092559429675,"sku":"HAC-1230-OPP","price":425.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard \/ Yes","offer_id":43092559462443,"sku":"HAC-1230-OPP-H","price":444.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ With End Switch \/ No","offer_id":43092559495211,"sku":"HAC-1230-SPP","price":442.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ With End Switch \/ Yes","offer_id":43092559527979,"sku":"HAC-1230-SPP-H","price":465.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard \/ No","offer_id":43092559560747,"sku":"HAC-1430-OPP","price":476.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard \/ Yes","offer_id":43092559593515,"sku":"HAC-1430-OPP-H","price":496.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ With End Switch \/ No","offer_id":43092559626283,"sku":"HAC-1430-SPP","price":494.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ With End Switch \/ Yes","offer_id":43092559659051,"sku":"HAC-1430-SPP-H","price":516.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard \/ No","offer_id":43092559691819,"sku":"HAC-1630-OPP","price":477.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard \/ Yes","offer_id":43092559724587,"sku":"HAC-1630-OPP-H","price":497.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ With End Switch \/ No","offer_id":43092559757355,"sku":"HAC-1630-SPP","price":495.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ With End Switch \/ Yes","offer_id":43092559790123,"sku":"HAC-1630-SPP-H","price":517.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard \/ No","offer_id":43092559822891,"sku":"HAC-1830-OPP","price":517.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard \/ Yes","offer_id":43092559855659,"sku":"HAC-1830-OPP-H","price":539.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ With End Switch \/ No","offer_id":43092559888427,"sku":"HAC-1830-SPP","price":535.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ With End Switch \/ Yes","offer_id":43092559921195,"sku":"HAC-1830-SPP-H","price":559.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard \/ No","offer_id":43092559953963,"sku":"HAC-2030-OPP","price":553.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard \/ Yes","offer_id":43092559986731,"sku":"HAC-2030-OPP-H","price":572.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ With End Switch \/ No","offer_id":43092560019499,"sku":"HAC-2030-SPP","price":570.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ With End Switch \/ Yes","offer_id":43092560052267,"sku":"HAC-2030-SPP-H","price":593.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_70.png?v=1775768069"},{"product_id":"hac-belimo-cmb120-3-floating-point-230vac","title":"HAC-35 Inline Damper with Belimo CMB120-3, Floating Point, 3-Wire, 100–230 Vac, 6\"–20\", Holds Last Position","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac35-desc *{box-sizing:border-box;margin:0;padding:0;}.hac35-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac35-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac35-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac35-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac35-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac35-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac35-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac35-desc__nocert{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 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Sans',sans-serif;line-height:1.6;}.hac35-desc__note strong{font-family:'Montserrat',sans-serif;font-weight:700;}.hac35-desc__note a{color:#C8102E;text-decoration:none;font-weight:600;}.hac35-desc__compare{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px;}.hac35-desc__compare-card{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:12px 14px;}.hac35-desc__compare-card--red{border-top:3px solid #C8102E;}.hac35-desc__compare-card--navy{border-top:3px solid 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12px;text-align:left;white-space:nowrap;}.hac35-desc__table td{padding:8px 12px;border-bottom:1px solid #e2e8f0;color:#001F3F;vertical-align:top;}.hac35-desc__table tr:last-child td{border-bottom:none;}.hac35-desc__table tr.hac35-desc__table-highlight td{background:#F3F6F8;}.hac35-desc__table tr.hac35-desc__table-highlight td:nth-child(4){font-family:'Montserrat',sans-serif;font-weight:800;color:#C8102E;}.hac35-desc__table td:nth-child(4){font-family:'Montserrat',sans-serif;font-weight:700;color:#374151;font-size:12px;white-space:nowrap;}.hac35-desc__specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin-bottom:20px;}.hac35-desc__spec{background:#F3F6F8;border:1px solid #e2e8f0;border-radius:5px;padding:10px 12px;}.hac35-desc__spec-label{font-family:'Montserrat',sans-serif;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.07em;color:#718096;margin-bottom:3px;}.hac35-desc__spec-value{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:#001F3F;line-height:1.35;}.hac35-desc__spec--red{background:#fff3f4;border-color:#C8102E;}.hac35-desc__spec--red .hac35-desc__spec-label{color:#C8102E;}.hac35-desc__spec--red .hac35-desc__spec-value{color:#C8102E;}.hac35-desc__spec--highlight{background:#001F3F;border-color:#001F3F;}.hac35-desc__spec--highlight .hac35-desc__spec-label{color:rgba(255,255,255,0.5);}.hac35-desc__spec--highlight .hac35-desc__spec-value{color:#FFFFFF;}.hac35-desc__spec--amber{background:#fffbeb;border-color:#d97706;}.hac35-desc__spec--amber .hac35-desc__spec-label{color:#92400e;}.hac35-desc__spec--amber .hac35-desc__spec-value{color:#92400e;}.hac35-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac35-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac35-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac35-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac35-desc\"\u003e\n\u003cp class=\"hac35-desc__intro\"\u003eHoyme inline damper body with Belimo CMB120-3 line-voltage floating point actuator. Same 3-wire Open \/ Stop \/ Close control architecture as the HAC-34 (CMB24-3-T). Same holds-last-position behavior on power loss. One difference: the CMB120-3 accepts 100–230 Vac directly, so no step-down transformer or low-voltage circuit is required at the damper location. Sizes 6\"–20\" in even-inch increments.\u003c\/p\u003e\n\u003cdiv class=\"hac35-desc__nocert\"\u003e\n\u003cdiv class=\"hac35-desc__nocert-title\"\u003e⚠ No Spring Return: Holds Last Position on Power Loss\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__nocert-body\"\u003eOn power loss, the HAC-35 blade stays at its last position. It does not move to a defined open or closed fail-safe position. \u003cstrong\u003eIf your application requires the damper to move to a defined position on power loss\u003c\/strong\u003e, use a spring return product: \u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44 (TFB120)\u003c\/a\u003e for line-voltage on\/off with spring return.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__bullets\"\u003e\n\u003cdiv class=\"hac35-desc__bullet\"\u003e\n\u003cspan class=\"hac35-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac35-desc__bullet-text\"\u003e\u003cstrong\u003eCMB120-3, 100–230 Vac direct\u003c\/strong\u003e. Accepts North American 120 Vac, 208\/240 Vac, and international line voltage; no transformer, no low-voltage run to the damper\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__bullet\"\u003e\n\u003cspan class=\"hac35-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac35-desc__bullet-text\"\u003e\u003cstrong\u003eSame 3-wire floating point as HAC-34\u003c\/strong\u003e: Open \/ Stop \/ Close; DDC controller pulses the Open or Close wire to position the blade incrementally; blade holds when neither is active\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__bullet\"\u003e\n\u003cspan class=\"hac35-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac35-desc__bullet-text\"\u003e\u003cstrong\u003eHigher torque class, same as CMB24-3-T\u003c\/strong\u003e. Suited to the same size range as the HAC-34; not the lighter LMB torque class\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__bullet\"\u003e\n\u003cspan class=\"hac35-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac35-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo CMB120-3: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__bullet\"\u003e\n\u003cspan class=\"hac35-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac35-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and heat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; no relay on CMB120-3 motor code\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare\"\u003e\n\u003cdiv class=\"hac35-desc__compare-card hac35-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac35-desc__compare-title\"\u003eHAC-35 (CMB120-3): this product\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eOnly line voltage (100–230 Vac) available at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eDDC floating point output card operates at line voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eAdding a step-down transformer to the damper location is impractical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eSpec names CMB120-3 specifically\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-card hac35-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac35-desc__compare-title\"\u003eHAC-34 (CMB24-3-T): use instead when…\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003e24 Vac is already available at the damper location\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eDDC floating point output card operates at 24 Vac\/dc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eSimpler wiring: low-voltage circuit avoids running line voltage to the actuator\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__compare-item\"\u003e\n\u003cspan class=\"hac35-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac35-desc__compare-text\"\u003eSpec names CMB24-3-T specifically\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__warning\"\u003e\n\u003cstrong\u003eDo not specify -H heat bypass on fresh air intake, make-up air, or ventilation applications.\u003c\/strong\u003e The 10% bypass allows continuous outdoor air infiltration when the damper is at minimum position. Specify -H only for hot air supply duct zone control on single-speed furnace systems.\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__table-wrap\"\u003e\n\u003ctable class=\"hac35-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eActuator\u003c\/th\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMB24-3-T\u003c\/td\u003e\n\u003ctd\u003e24 Vac\/dc\u003c\/td\u003e\n\u003ctd\u003eLower\u003c\/td\u003e\n\u003ctd\u003eHAC-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCMB24-3-T\u003c\/td\u003e\n\u003ctd\u003e24 Vac\/dc\u003c\/td\u003e\n\u003ctd\u003eHigher\u003c\/td\u003e\n\u003ctd\u003eHAC-34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hac35-desc__table-highlight\"\u003e\n\u003ctd\u003eCMB120-3\u003c\/td\u003e\n\u003ctd\u003e100–230 Vac\u003c\/td\u003e\n\u003ctd\u003eHigher\u003c\/td\u003e\n\u003ctd\u003eHAC-35: this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMX120-3\u003c\/td\u003e\n\u003ctd\u003e100–230 Vac (PO only)\u003c\/td\u003e\n\u003ctd\u003eLower\u003c\/td\u003e\n\u003ctd\u003eHAC-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__specs\"\u003e\n\u003cdiv class=\"hac35-desc__spec hac35-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003eBelimo CMB120-3, 100–230 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec hac35-desc__spec--red\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003eHolds last position, no spring return\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eControl\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003e3-wire floating point\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eHeat Bypass (-H)\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003eAvailable all sizes: hot air zone only\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec hac35-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac35-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__note\"\u003e\n\u003cstrong\u003eNeed spring return fail-safe at line voltage?\u003c\/strong\u003e The HAC-35 holds last position on power loss. For line-voltage on\/off with spring return see \u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44 (TFB120)\u003c\/a\u003e. For 24 Vac floating point see \u003ca href=\"\/products\/hac-belimo-cmb24-3-t-floating-point-24vac\"\u003eHAC-34 (CMB24-3-T)\u003c\/a\u003e or \u003ca href=\"\/products\/hac-belimo-lmb24-3-t-floating-point-small-duct\"\u003eHAC-30 (LMB24-3-T)\u003c\/a\u003e. For line-voltage floating point with lighter torque see \u003ca href=\"\/products\/hac-belimo-lmx120-3-floating-point-po-230vac\"\u003eHAC-70 (LMX120-3)\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__warranty\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"flex-shrink: 0;\"\u003e\n\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003cpath d=\"M9 12l2 2 4-4\" stroke=\"#C8102E\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac35-desc__warranty-text\"\u003e2-year electrical · 10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac35-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada · Belimo CMB120-3 field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Standard \/ No","offer_id":43092580859947,"sku":"HAC-0635-OPP","price":551.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Standard \/ Yes","offer_id":43092580892715,"sku":"HAC-0635-OPP-H","price":571.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ With End Switch \/ No","offer_id":43092580925483,"sku":"HAC-0635-SPP","price":586.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ With End Switch \/ Yes","offer_id":43092580958251,"sku":"HAC-0635-SPP-H","price":606.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard \/ No","offer_id":43092580991019,"sku":"HAC-0835-OPP","price":553.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Standard \/ Yes","offer_id":43092581023787,"sku":"HAC-0835-OPP-H","price":575.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ With End Switch \/ No","offer_id":43092581056555,"sku":"HAC-0835-SPP","price":587.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ With End Switch \/ Yes","offer_id":43092581089323,"sku":"HAC-0835-SPP-H","price":608.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard \/ No","offer_id":43092581122091,"sku":"HAC-1035-OPP","price":586.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Standard \/ Yes","offer_id":43092581154859,"sku":"HAC-1035-OPP-H","price":607.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ With End Switch \/ No","offer_id":43092581187627,"sku":"HAC-1035-SPP","price":637.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ With End Switch \/ Yes","offer_id":43092581220395,"sku":"HAC-1035-SPP-H","price":658.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard \/ No","offer_id":43092581253163,"sku":"HAC-1235-OPP","price":590.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Standard \/ Yes","offer_id":43092581285931,"sku":"HAC-1235-OPP-H","price":613.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ With End Switch \/ No","offer_id":43092581318699,"sku":"HAC-1235-SPP","price":640.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ With End Switch \/ Yes","offer_id":43092581351467,"sku":"HAC-1235-SPP-H","price":661.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard \/ No","offer_id":43092581384235,"sku":"HAC-1435-OPP","price":640.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Standard \/ Yes","offer_id":43092581417003,"sku":"HAC-1435-OPP-H","price":663.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ With End Switch \/ No","offer_id":43092581449771,"sku":"HAC-1435-SPP","price":691.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ With End Switch \/ Yes","offer_id":43092581482539,"sku":"HAC-1435-SPP-H","price":713.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard \/ No","offer_id":43092581515307,"sku":"HAC-1635-OPP","price":642.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Standard \/ Yes","offer_id":43092581548075,"sku":"HAC-1635-OPP-H","price":664.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ With End Switch \/ No","offer_id":43092581580843,"sku":"HAC-1635-SPP","price":692.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ With End Switch \/ Yes","offer_id":43092581613611,"sku":"HAC-1635-SPP-H","price":714.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard \/ No","offer_id":43092581646379,"sku":"HAC-1835-OPP","price":683.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Standard \/ Yes","offer_id":43092581679147,"sku":"HAC-1835-OPP-H","price":705.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ With End Switch \/ No","offer_id":43092581711915,"sku":"HAC-1835-SPP","price":733.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ With End Switch \/ Yes","offer_id":43092581744683,"sku":"HAC-1835-SPP-H","price":755.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard \/ No","offer_id":43092581777451,"sku":"HAC-2035-OPP","price":717.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Standard \/ Yes","offer_id":43092581810219,"sku":"HAC-2035-OPP-H","price":738.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ With End Switch \/ No","offer_id":43092581842987,"sku":"HAC-2035-SPP","price":768.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ With End Switch \/ Yes","offer_id":43092581875755,"sku":"HAC-2035-SPP-H","price":790.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Screenshot2026-02-20093721.png?v=1775769469"},{"product_id":"hac-belimo-fslf24-fire-smoke-damper-24vac","title":"HAC Inline Damper with Belimo FSLF24 US Fire \u0026 Smoke Actuator, 24 Vac, 6\"–20\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eHoyme inline damper body fitted with a Belimo FSLF24 US fire and smoke actuator, 24 Vac\/dc, on\/off with spring return. Sizes 6\" to 20\", even inches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot a listed fire, smoke or combination damper.\u003c\/strong\u003e This Hoyme damper assembly is not UL 555 or UL 555S listed and is not CSA certified. Where a code, a specification or the authority having jurisdiction requires a listed fire damper, smoke damper or combination fire\/smoke damper, specify a listed damper assembly. Do not use this product in its place.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator:\u003c\/strong\u003e Belimo FSLF24 US, on\/off, spring return, 24 Vac\/dc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd switch:\u003c\/strong\u003e available on all sizes; specify SPO or SPC at order where position feedback is needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField-replaceable actuator:\u003c\/strong\u003e available through Belimo distributors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 Vac?\u003c\/strong\u003e See \u003ca href=\"\/products\/hac-belimo-fslf120-fire-smoke-damper-120vac\"\u003eHAC-80 (FSLF120 US)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm the action code with the design engineer in writing before ordering.\u003c\/strong\u003e PO or PC decides which position the blade moves to when power is removed.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eActuator\u003c\/td\u003e\n\u003ctd\u003eBelimo FSLF24 US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e24 Vac\/dc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes\u003c\/td\u003e\n\u003ctd\u003e6\" to 20\", even inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL listing\u003c\/td\u003e\n\u003ctd\u003eDamper assembly not listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA status\u003c\/td\u003e\n\u003ctd\u003eNot CSA certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e2-year electrical and 10-year mechanical warranty. Hoyme damper body made in Canada.\u003c\/p\u003e","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43093803040811,"sku":"HAC-0690-OPO","price":1053.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093803073579,"sku":"HAC-0690-OPO-H","price":1076.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard","offer_id":43093803106347,"sku":"HAC-0690-OPC","price":1053.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093803139115,"sku":"HAC-0690-OPC-H","price":1076.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Standard","offer_id":43093803171883,"sku":"HAC-0690-SPO","price":1074.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093803204651,"sku":"HAC-0690-SPO-H","price":1095.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Standard","offer_id":43093803237419,"sku":"HAC-0690-SPC","price":1074.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093803270187,"sku":"HAC-0690-SPC-H","price":1095.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard","offer_id":43093803302955,"sku":"HAC-0890-OPO","price":1055.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093803335723,"sku":"HAC-0890-OPO-H","price":1078.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard","offer_id":43093803368491,"sku":"HAC-0890-OPC","price":1055.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093803401259,"sku":"HAC-0890-OPC-H","price":1078.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Standard","offer_id":43093803434027,"sku":"HAC-0890-SPO","price":1076.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093803466795,"sku":"HAC-0890-SPO-H","price":1098.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Standard","offer_id":43093803499563,"sku":"HAC-0890-SPC","price":1076.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093803532331,"sku":"HAC-0890-SPC-H","price":1098.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard","offer_id":43093803565099,"sku":"HAC-1090-OPO","price":1089.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093803597867,"sku":"HAC-1090-OPO-H","price":1110.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard","offer_id":43093803630635,"sku":"HAC-1090-OPC","price":1089.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093803663403,"sku":"HAC-1090-OPC-H","price":1110.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Standard","offer_id":43093803696171,"sku":"HAC-1090-SPO","price":1108.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093803728939,"sku":"HAC-1090-SPO-H","price":1129.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Standard","offer_id":43093803761707,"sku":"HAC-1090-SPC","price":1108.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093803794475,"sku":"HAC-1090-SPC-H","price":1129.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard","offer_id":43093803827243,"sku":"HAC-1290-OPO","price":1093.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093803860011,"sku":"HAC-1290-OPO-H","price":1115.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Standard","offer_id":43093803892779,"sku":"HAC-1290-OPC","price":1093.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093803925547,"sku":"HAC-1290-OPC-H","price":1115.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Standard","offer_id":43093803958315,"sku":"HAC-1290-SPO","price":1111.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093803991083,"sku":"HAC-1290-SPO-H","price":1135.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Standard","offer_id":43093804023851,"sku":"HAC-1290-SPC","price":1111.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093804056619,"sku":"HAC-1290-SPC-H","price":1135.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard","offer_id":43093804089387,"sku":"HAC-1490-OPO","price":1145.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093804122155,"sku":"HAC-1490-OPO-H","price":1167.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard","offer_id":43093804154923,"sku":"HAC-1490-OPC","price":1145.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093804187691,"sku":"HAC-1490-OPC-H","price":1167.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Standard","offer_id":43093804220459,"sku":"HAC-1490-SPO","price":1163.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093804253227,"sku":"HAC-1490-SPO-H","price":1185.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Standard","offer_id":43093804285995,"sku":"HAC-1490-SPC","price":1163.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093804318763,"sku":"HAC-1490-SPC-H","price":1185.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard","offer_id":43093804351531,"sku":"HAC-1690-OPO","price":1146.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Heat 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(H)","offer_id":43093804974123,"sku":"HAC-2090-OPC-H","price":1242.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Standard","offer_id":43093805006891,"sku":"HAC-2090-SPO","price":1239.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093805039659,"sku":"HAC-2090-SPO-H","price":1262.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Standard","offer_id":43093805072427,"sku":"HAC-2090-SPC","price":1239.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093805105195,"sku":"HAC-2090-SPC-H","price":1262.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/Screenshot2026-02-21150308.png?v=1775767460"},{"product_id":"hac-belimo-fslf120-fire-smoke-damper-120vac","title":"HAC Inline Damper with Belimo FSLF120 US Fire \u0026 Smoke Actuator, 120 Vac, 6\"–20\"","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eHoyme inline damper body fitted with a Belimo FSLF120 US fire and smoke actuator, 120 Vac, on\/off with spring return. Sizes 6\" to 20\", even inches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot a listed fire, smoke or combination damper.\u003c\/strong\u003e This Hoyme damper assembly is not UL 555 or UL 555S listed and is not CSA certified. Where a code, a specification or the authority having jurisdiction requires a listed fire damper, smoke damper or combination fire\/smoke damper, specify a listed damper assembly. Do not use this product in its place.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator:\u003c\/strong\u003e Belimo FSLF120 US, on\/off, spring return, 120 Vac\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd switch:\u003c\/strong\u003e available on all sizes; specify SPO or SPC at order where position feedback is needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField-replaceable actuator:\u003c\/strong\u003e available through Belimo distributors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 Vac?\u003c\/strong\u003e See \u003ca href=\"\/products\/hac-belimo-fslf24-fire-smoke-damper-24vac\"\u003eHAC-90 (FSLF24 US)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm the action code with the design engineer in writing before ordering.\u003c\/strong\u003e PO or PC decides which position the blade moves to when power is removed.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eActuator\u003c\/td\u003e\n\u003ctd\u003eBelimo FSLF120 US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e120 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes\u003c\/td\u003e\n\u003ctd\u003e6\" to 20\", even inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL listing\u003c\/td\u003e\n\u003ctd\u003eDamper assembly not listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA status\u003c\/td\u003e\n\u003ctd\u003eNot CSA certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e2-year electrical and 10-year mechanical warranty. Hoyme damper body made in Canada.\u003c\/p\u003e","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43093825093675,"sku":"HAC-0680-OPO","price":1146.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093825126443,"sku":"HAC-0680-OPO-H","price":1168.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard","offer_id":43093825159211,"sku":"HAC-0680-OPC","price":1146.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093825191979,"sku":"HAC-0680-OPC-H","price":1168.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Standard","offer_id":43093825224747,"sku":"HAC-0680-SPO","price":1180.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Heat 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(H)","offer_id":43093825454123,"sku":"HAC-0880-OPC-H","price":1172.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Standard","offer_id":43093825486891,"sku":"HAC-0880-SPO","price":1181.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093825519659,"sku":"HAC-0880-SPO-H","price":1205.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Standard","offer_id":43093825552427,"sku":"HAC-0880-SPC","price":1181.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093825585195,"sku":"HAC-0880-SPC-H","price":1205.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard","offer_id":43093825617963,"sku":"HAC-1080-OPO","price":1180.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093825650731,"sku":"HAC-1080-OPO-H","price":1203.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Standard","offer_id":43093825683499,"sku":"HAC-1080-OPC","price":1180.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093825716267,"sku":"HAC-1080-OPC-H","price":1203.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Standard","offer_id":43093825749035,"sku":"HAC-1080-SPO","price":1231.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093825781803,"sku":"HAC-1080-SPO-H","price":1253.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Standard","offer_id":43093825814571,"sku":"HAC-1080-SPC","price":1231.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093825847339,"sku":"HAC-1080-SPC-H","price":1253.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard","offer_id":43093825880107,"sku":"HAC-1280-OPO","price":1184.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093825912875,"sku":"HAC-1280-OPO-H","price":1207.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Standard","offer_id":43093825945643,"sku":"HAC-1280-OPC","price":1184.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093825978411,"sku":"HAC-1280-OPC-H","price":1207.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Standard","offer_id":43093826011179,"sku":"HAC-1280-SPO","price":1236.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093826043947,"sku":"HAC-1280-SPO-H","price":1258.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Standard","offer_id":43093826076715,"sku":"HAC-1280-SPC","price":1236.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093826109483,"sku":"HAC-1280-SPC-H","price":1258.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard","offer_id":43093826142251,"sku":"HAC-1480-OPO","price":1236.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093826175019,"sku":"HAC-1480-OPO-H","price":1258.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Standard","offer_id":43093826207787,"sku":"HAC-1480-OPC","price":1236.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093826240555,"sku":"HAC-1480-OPC-H","price":1258.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Standard","offer_id":43093826273323,"sku":"HAC-1480-SPO","price":1286.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093826306091,"sku":"HAC-1480-SPO-H","price":1308.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Standard","offer_id":43093826338859,"sku":"HAC-1480-SPC","price":1286.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093826371627,"sku":"HAC-1480-SPC-H","price":1308.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard","offer_id":43093826404395,"sku":"HAC-1680-OPO","price":1238.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093826437163,"sku":"HAC-1680-OPO-H","price":1260.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Standard","offer_id":43093826469931,"sku":"HAC-1680-OPC","price":1238.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093826502699,"sku":"HAC-1680-OPC-H","price":1260.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Standard","offer_id":43093826535467,"sku":"HAC-1680-SPO","price":1287.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093826568235,"sku":"HAC-1680-SPO-H","price":1309.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close + End Switch \/ Standard","offer_id":43093826601003,"sku":"HAC-1680-SPC","price":1287.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093826633771,"sku":"HAC-1680-SPC-H","price":1309.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard","offer_id":43093826666539,"sku":"HAC-1880-OPO","price":1278.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093826699307,"sku":"HAC-1880-OPO-H","price":1299.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Standard","offer_id":43093826732075,"sku":"HAC-1880-OPC","price":1278.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093826764843,"sku":"HAC-1880-OPC-H","price":1299.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Standard","offer_id":43093826797611,"sku":"HAC-1880-SPO","price":1329.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093826830379,"sku":"HAC-1880-SPO-H","price":1350.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Standard","offer_id":43093826863147,"sku":"HAC-1880-SPC","price":1329.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093826895915,"sku":"HAC-1880-SPC-H","price":1350.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard","offer_id":43093826928683,"sku":"HAC-2080-OPO","price":1313.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093826961451,"sku":"HAC-2080-OPO-H","price":1334.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Standard","offer_id":43093826994219,"sku":"HAC-2080-OPC","price":1313.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close (PC) \/ Heat (H)","offer_id":43093827026987,"sku":"HAC-2080-OPC-H","price":1334.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Standard","offer_id":43093827059755,"sku":"HAC-2080-SPO","price":1244.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093827092523,"sku":"HAC-2080-SPO-H","price":1386.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Standard","offer_id":43093827125291,"sku":"HAC-2080-SPC","price":1244.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093827158059,"sku":"HAC-2080-SPC-H","price":1386.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/image_67.png?v=1775767328"},{"product_id":"hac-belimo-lmx120-3-floating-point-po-230vac","title":"HAC-70 Inline Damper with Belimo LMX120-3, Floating Point, 3-Wire, 100–230 Vac, 6\"–20\", Power Open Only","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e.hac70-desc *{box-sizing:border-box;margin:0;padding:0;}.hac70-desc{font-family:'Open Sans',sans-serif;color:#001F3F;line-height:1.6;font-size:15px;}.hac70-desc__intro{font-size:15px;line-height:1.75;color:#374151;margin-bottom:20px;}.hac70-desc__bullets{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}.hac70-desc__bullet{display:flex;align-items:flex-start;gap:10px;}.hac70-desc__bullet-check{color:#C8102E;font-weight:700;font-size:14px;flex-shrink:0;line-height:1.6;}.hac70-desc__bullet-text{font-size:14px;color:#374151;font-family:'Open Sans',sans-serif;line-height:1.6;}.hac70-desc__bullet-text strong{font-family:'Montserrat',sans-serif;font-weight:700;color:#001F3F;}.hac70-desc__dual-warning{background:#fff3f4;border:2px solid #C8102E;border-radius:5px;padding:14px 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.hac70-desc__spec-value{color:#92400e;}.hac70-desc__warranty{display:flex;align-items:center;gap:10px;background:#001F3F;border-radius:5px;padding:12px 16px;}.hac70-desc__warranty-text{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:#FFFFFF;}.hac70-desc__warranty-sub{font-size:12px;color:rgba(255,255,255,0.6);font-family:'Open Sans',sans-serif;margin-top:2px;}@media (max-width:480px){.hac70-desc__compare{grid-template-columns:1fr;}}\u003c\/style\u003e\n\u003cdiv class=\"hac70-desc\"\u003e\n\u003cp class=\"hac70-desc__intro\"\u003eHoyme inline damper body with Belimo LMX120-3 line-voltage floating point actuator. Same Open \/ Stop \/ Close 3-wire architecture as the rest of the floating point family. Two constraints distinguish it from the HAC-35 (CMB120-3): Power Open configuration only (Power Close is not available on the LMX120-3) and lower torque class. When the spec names LMX120-3 and PO is confirmed, this is the product. Sizes 6\"–20\".\u003c\/p\u003e\n\u003cdiv class=\"hac70-desc__dual-warning\"\u003e\n\u003cdiv class=\"hac70-desc__dual-warning-item\"\u003e\n\u003cspan class=\"hac70-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003ePower Open only.\u003c\/strong\u003e The LMX120-3 is not available in Power Close configuration. If Power Close action is required at line voltage, use \u003ca href=\"\/products\/hac-belimo-cmb120-3-floating-point-230vac\"\u003eHAC-35 (CMB120-3)\u003c\/a\u003e, same line-voltage floating point architecture, PO and PC both available.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__dual-warning-item\"\u003e\n\u003cspan class=\"hac70-desc__dual-warning-icon\"\u003e!\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eNo spring return: holds last position on power loss.\u003c\/strong\u003e The blade stays at its last position if power is lost. If a defined fail-safe position is required on power loss, use \u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44 (TFB120)\u003c\/a\u003e, line-voltage on\/off with spring return.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__bullets\"\u003e\n\u003cdiv class=\"hac70-desc__bullet\"\u003e\n\u003cspan class=\"hac70-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac70-desc__bullet-text\"\u003e\u003cstrong\u003e3-wire floating point at line voltage: Open \/ Stop \/ Close\u003c\/strong\u003e. DDC controller pulses the Open or Close wire to position the blade incrementally at 100–230 Vac; no transformer, no low-voltage run to the damper\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__bullet\"\u003e\n\u003cspan class=\"hac70-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac70-desc__bullet-text\"\u003e\u003cstrong\u003eLMX120-3: lighter torque class than CMB120-3\u003c\/strong\u003e. Suited to smaller and mid-range duct sizes at moderate static pressure; if torque adequacy is uncertain, specify HAC-35 (CMB120-3)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__bullet\"\u003e\n\u003cspan class=\"hac70-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac70-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo LMX120-3: factory-mounted to Hoyme damper body\u003c\/strong\u003e. Single SKU, ready to install; actuator field-replaceable through Belimo distributors\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__bullet\"\u003e\n\u003cspan class=\"hac70-desc__bullet-check\"\u003e✓\u003c\/span\u003e \u003cspan class=\"hac70-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch and heat bypass (-H) available on all sizes\u003c\/strong\u003e: factory-installed; no relay on LMX120-3 motor code\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare\"\u003e\n\u003cdiv class=\"hac70-desc__compare-card hac70-desc__compare-card--red\"\u003e\n\u003cdiv class=\"hac70-desc__compare-title\"\u003eHAC-70 (LMX120-3): this product\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003ePower Open is confirmed: PC is not required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eSpec names LMX120-3 or is actuator-neutral\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eSmaller or mid-range duct sizes at moderate static pressure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eLower torque class confirmed adequate for the application\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-card hac70-desc__compare-card--navy\"\u003e\n\u003cdiv class=\"hac70-desc__compare-title\"\u003eHAC-35 (CMB120-3): use instead when…\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003ePower Close action is required at line voltage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eSpec names CMB120-3 specifically\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eLarger duct sizes or higher static pressure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__compare-item\"\u003e\n\u003cspan class=\"hac70-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac70-desc__compare-text\"\u003eTorque adequacy of LMX is uncertain: CMB is the safer choice\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__warning\"\u003e\n\u003cstrong\u003eDo not specify -H heat bypass on fresh air intake, make-up air, or ventilation applications.\u003c\/strong\u003e The 10% bypass allows continuous outdoor air infiltration when the damper is at minimum position. Specify -H only for hot air supply duct zone control on single-speed furnace systems.\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__table-wrap\"\u003e\n\u003ctable class=\"hac70-desc__table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication at line voltage\u003c\/th\u003e\n\u003cth\u003eControl type\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn\/off, spring return, PO or PC\u003c\/td\u003e\n\u003ctd\u003eOn\/Off spring return\u003c\/td\u003e\n\u003ctd\u003eHAC-44 (TFB120)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"hac70-desc__table-highlight\"\u003e\n\u003ctd\u003eFloating point, PO only, lower torque\u003c\/td\u003e\n\u003ctd\u003eFloating point, PO only\u003c\/td\u003e\n\u003ctd\u003eHAC-70 (LMX120-3): this product\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloating point, PO or PC, higher torque\u003c\/td\u003e\n\u003ctd\u003eFloating point, PO or PC\u003c\/td\u003e\n\u003ctd\u003eHAC-35 (CMB120-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFire and smoke actuator, 120 Vac (not a listed damper)\u003c\/td\u003e\n\u003ctd\u003eSpring return fire\/smoke\u003c\/td\u003e\n\u003ctd\u003eHAC-80 (FSLF120 US)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__specs\"\u003e\n\u003cdiv class=\"hac70-desc__spec hac70-desc__spec--highlight\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003eBelimo LMX120-3, 100–230 Vac\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec hac70-desc__spec--red\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eAction\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003ePower Open only, no PC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec hac70-desc__spec--red\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eFail-Safe\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003eHolds last position, no spring return\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eControl\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003e3-wire floating point\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec hac70-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eTorque\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003eLower class: confirm for size and pressure\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec hac70-desc__spec--amber\"\u003e\n\u003cdiv class=\"hac70-desc__spec-label\"\u003eCSA Status\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__spec-value\"\u003eNot CSA certified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__note\"\u003e\n\u003cstrong\u003eNeed Power Close at line voltage?\u003c\/strong\u003e Use \u003ca href=\"\/products\/hac-belimo-cmb120-3-floating-point-230vac\"\u003eHAC-35 (CMB120-3)\u003c\/a\u003e, same line-voltage floating point architecture, PO and PC both available, higher torque class. For line-voltage on\/off with spring return see \u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44 (TFB120)\u003c\/a\u003e. For 24 Vac floating point see \u003ca href=\"\/products\/hac-belimo-cmb24-3-t-floating-point-24vac\"\u003eHAC-34\u003c\/a\u003e or \u003ca href=\"\/products\/hac-belimo-lmb24-3-t-floating-point-small-duct\"\u003eHAC-30\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__warranty\"\u003e\n\u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n\u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"hac70-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n\u003cdiv class=\"hac70-desc__warranty-sub\"\u003eHoyme damper body: Made in Canada  ·  Belimo LMX120-3 field-replaceable through Belimo distributors\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43093843279915,"sku":"HAC-0670-OPP","price":507.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843312683,"sku":"HAC-0670-OPP-H","price":527.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Standard","offer_id":43093843345451,"sku":"HAC-0670-SPP","price":539.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093843378219,"sku":"HAC-0670-SPP-H","price":562.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard","offer_id":43093843410987,"sku":"HAC-0870-OPP","price":508.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843443755,"sku":"HAC-0870-OPP-H","price":529.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Standard","offer_id":43093843476523,"sku":"HAC-0870-SPP","price":541.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093843509291,"sku":"HAC-0870-SPP-H","price":563.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Standard","offer_id":43093843542059,"sku":"HAC-1070-OPP","price":540.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843574827,"sku":"HAC-1070-OPP-H","price":562.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Standard","offer_id":43093843607595,"sku":"HAC-1070-SPP","price":590.0,"currency_code":"CAD","in_stock":true},{"title":"10\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093843640363,"sku":"HAC-1070-SPP-H","price":613.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Standard","offer_id":43093843673131,"sku":"HAC-1270-OPP","price":545.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843705899,"sku":"HAC-1270-OPP-H","price":565.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Standard","offer_id":43093843738667,"sku":"HAC-1270-SPP","price":595.0,"currency_code":"CAD","in_stock":true},{"title":"12\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093843771435,"sku":"HAC-1270-SPP-H","price":616.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Standard","offer_id":43093843804203,"sku":"HAC-1470-OPP","price":595.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843836971,"sku":"HAC-1470-OPP-H","price":616.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Standard","offer_id":43093843869739,"sku":"HAC-1470-SPP","price":645.0,"currency_code":"CAD","in_stock":true},{"title":"14\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093843902507,"sku":"HAC-1470-SPP-H","price":667.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Standard","offer_id":43093843935275,"sku":"HAC-1670-OPP","price":596.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093843968043,"sku":"HAC-1670-OPP-H","price":617.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Standard","offer_id":43093844000811,"sku":"HAC-1670-SPP","price":646.0,"currency_code":"CAD","in_stock":true},{"title":"16\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093844033579,"sku":"HAC-1670-SPP-H","price":669.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Standard","offer_id":43093844066347,"sku":"HAC-1870-OPP","price":638.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093844099115,"sku":"HAC-1870-OPP-H","price":659.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Standard","offer_id":43093844131883,"sku":"HAC-1870-SPP","price":686.0,"currency_code":"CAD","in_stock":true},{"title":"18\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093844164651,"sku":"HAC-1870-SPP-H","price":710.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Standard","offer_id":43093844197419,"sku":"HAC-2070-OPP","price":671.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093844230187,"sku":"HAC-2070-OPP-H","price":694.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Standard","offer_id":43093844262955,"sku":"HAC-2070-SPP","price":722.0,"currency_code":"CAD","in_stock":true},{"title":"20\" \/ Power Open + End Switch \/ Heat (H)","offer_id":43093844295723,"sku":"HAC-2070-SPP-H","price":744.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/44.png?v=1775769769"},{"product_id":"moh-motorized-all-weather-hood-24vac","title":"MOH Motorized All-Weather Hood Damper, CSA Certified, 24 Vac, 4\"–8\", Spring Return","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .moh-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .moh-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .moh-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .moh-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .moh-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .moh-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .moh-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .moh-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .moh-desc__warning { background: #fff3f4; border-left: 4px solid #C8102E; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .moh-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .moh-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .moh-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .moh-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .moh-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .moh-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .moh-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .moh-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .moh-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 800; color: #001F3F; margin-bottom: 8px; }\n  .moh-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .moh-desc__compare-item:last-child { margin-bottom: 0; }\n  .moh-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .moh-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .moh-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .moh-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .moh-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .moh-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .moh-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .moh-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .moh-desc__spec--highlight .moh-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .moh-desc__spec--highlight .moh-desc__spec-value { color: #FFFFFF; }\n  .moh-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .moh-desc__spec--red .moh-desc__spec-label { color: #C8102E; }\n  .moh-desc__spec--red .moh-desc__spec-value { color: #C8102E; }\n  .moh-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .moh-desc__spec--amber .moh-desc__spec-label { color: #92400e; }\n  .moh-desc__spec--amber .moh-desc__spec-value { color: #92400e; }\n\n  .moh-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .moh-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .moh-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\n  @media (max-width: 480px) {\n    .moh-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"moh-desc\"\u003e\n\n  \u003cp class=\"moh-desc__intro\"\u003eMotorized all-weather hood damper that mounts at the wall penetration: hood, damper, and flashing in one unit. Seals at the building exterior when the system is off. Same stall-protected Hoyme 24 Vac spring return drive as the HAC and HOM lineup. CSA certified. Sizes 4\"–8\".\u003c\/p\u003e\n\n  \u003cdiv class=\"moh-desc__bullets\"\u003e\n\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003eSeals at the wall, not in the duct\u003c\/strong\u003e. When the MOH closes, the air path is sealed at the building exterior; no cold air column sitting in the duct between the damper and outside between ventilation cycles\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003eOne unit replaces two\u003c\/strong\u003e: eliminates the separate all-weather hood and inline damper that a standard HAC + OOH installation requires at two different points in the system\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003eSame stall-protected Hoyme spring motor drive\u003c\/strong\u003e: Synchron motor, nylon bearings; holds against ice load without tripping, clears the obstruction when conditions change\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003eBase \"L\" dimension 7½\": extension sleeve available for deeper walls\u003c\/strong\u003e. Standard unit fits typical 2×4 wall assemblies (7½\"); optional extension sleeve extends reach up to 14\" for 2×6, stucco, and thicker wall assemblies; specify at order; flashing included\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003eCanada\/USA CSA certified\u003c\/strong\u003e\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"moh-desc__bullet\"\u003e\n      \u003cspan class=\"moh-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"moh-desc__bullet-text\"\u003e\u003cstrong\u003ePO or PC action, end switch available\u003c\/strong\u003e: all factory-set; confirm PO vs. PC before ordering (it can be converted in the field using the Hoyme conversion procedure); end switch required for combustion air appliance interlock\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n  \u003cdiv class=\"moh-desc__warning\"\u003e\n    \u003cstrong\u003eNot for dryer ventilation.\u003c\/strong\u003e The dryer exhaust environment (high humidity, lint, elevated temperature) is outside the MOH's listed application. Use the \u003ca style=\"color: #c8102e; text-decoration: none; font-weight: 600;\" href=\"\/products\/bdh-back-draft-hood-spring-gravity-4-12in\"\u003eBDH Back Draft Hood\u003c\/a\u003e for dryer exhaust termination. Also confirm wall depth at the installation point: the standard \"L\" dimension is 7½\". If wall depth exceeds 7½\", specify the extension sleeve at order. It extends reach to 14\". Walls exceeding 14\" require factory confirmation.\u003c\/div\u003e\n\n  \u003cdiv class=\"moh-desc__compare\"\u003e\n    \u003cdiv class=\"moh-desc__compare-card moh-desc__compare-card--red\"\u003e\n      \u003cdiv class=\"moh-desc__compare-title\"\u003eUse MOH when…\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eWall penetration is the natural control point\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eSealing at the building exterior is the priority\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eOne unit instead of separate hood + inline damper\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eRetrofit where replacing the existing hood is the cleaner solution\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__compare-card moh-desc__compare-card--navy\"\u003e\n      \u003cdiv class=\"moh-desc__compare-title\"\u003eUse HAC + OOH when…\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eDamper needs to be in the duct run, not at the wall\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eExisting all-weather hood already in place\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eInsulated damper body needed: see HAC-L\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__compare-item\"\u003e\n        \u003cspan class=\"moh-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"moh-desc__compare-text\"\u003eHeat bypass needed for zone control: see HAC-H\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"moh-desc__specs\"\u003e\n    \u003cdiv class=\"moh-desc__spec moh-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eSeals at\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003eBuilding exterior, not in duct\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003e4\"–8\"\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003e24 Vac, 5W\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eAction\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003ePO or PC\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eWall Depth (\"L\")\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003e7½\" standard; 14\" with optional extension sleeve\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eCertification\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003eCanada\/USA CSA\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec moh-desc__spec--red\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eNot Suitable For\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003eDryer ventilation: use BDH\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"moh-desc__spec moh-desc__spec--amber\"\u003e\n      \u003cdiv class=\"moh-desc__spec-label\"\u003eConfirm Before Ordering\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__spec-value\"\u003eWall depth; extension sleeve if wall \u0026gt; 7½\"\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"moh-desc__note\"\u003e\n    \u003cstrong\u003eCombustion air interlock?\u003c\/strong\u003e Order the MOH with end switch (SPO or SPC variant). The end switch proves the blade has physically reached the open position before the appliance fires. Select the correct ADP adaptor by appliance type: \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-0MV2-S5A\u003c\/a\u003e (millivolt), \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-1102-S5A\u003c\/a\u003e (110 Vac boiler\/tankless), or call technical support at 1-800-661-7382 to confirm the MOH interlock wiring for 24 Vac furnaces. See the \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP series\u003c\/a\u003e.\u003c\/div\u003e\n\n  \u003cdiv class=\"moh-desc__warranty\"\u003e\n    \u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"moh-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"moh-desc__warranty-sub\"\u003eMade in Canada  ·  Same Hoyme spring motor drive as HAC and HOM lineup\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\" \/ Power Open (PO) \/ Standard","offer_id":43336326021163,"sku":"MOH-0410-OPO","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Open (PO) \/ End Switch","offer_id":43336326053931,"sku":"MOH-0410-SPO","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ Standard","offer_id":43336326086699,"sku":"MOH-0410-OPC","price":251.0,"currency_code":"CAD","in_stock":true},{"title":"4\" \/ Power Close (PC) \/ End Switch","offer_id":43336326119467,"sku":"MOH-0410-SPC","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ Standard","offer_id":43336326152235,"sku":"MOH-0510-OPO","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Open (PO) \/ End Switch","offer_id":43336326185003,"sku":"MOH-0510-SPO","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ Standard","offer_id":43336326217771,"sku":"MOH-0510-OPC","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"5\" \/ Power Close (PC) \/ End Switch","offer_id":43336326250539,"sku":"MOH-0510-SPC","price":282.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ Standard","offer_id":43336326283307,"sku":"MOH-0610-OPO","price":260.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Open (PO) \/ End Switch","offer_id":43336326316075,"sku":"MOH-0610-SPO","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ Standard","offer_id":43336326348843,"sku":"MOH-0610-OPC","price":260.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close (PC) \/ End Switch","offer_id":43336326381611,"sku":"MOH-0610-SPC","price":286.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ Standard","offer_id":43336326414379,"sku":"MOH-0710-OPO","price":264.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Open (PO) \/ End Switch","offer_id":43336326447147,"sku":"MOH-0710-SPO","price":290.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ Standard","offer_id":43336326479915,"sku":"MOH-0710-OPC","price":264.0,"currency_code":"CAD","in_stock":true},{"title":"7\" \/ Power Close (PC) \/ End Switch","offer_id":43336326512683,"sku":"MOH-0710-SPC","price":290.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard","offer_id":43336326545451,"sku":"MOH-0810-OPO","price":268.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ End Switch","offer_id":43336326578219,"sku":"MOH-0810-SPO","price":296.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard","offer_id":43336326610987,"sku":"MOH-0810-OPC","price":268.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ End Switch","offer_id":43336326643755,"sku":"MOH-0810-SPC","price":296.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/moh.png?v=1775765988"},{"product_id":"hcr-hsi-custom-rectangular-damper-24vac","title":"HCR \/ HSI Rectangular and Square Motorized Dampers, Custom Made, 24 Vac, 6\"–36\" Width","description":"\u003cp\u003e\u003cem\u003eProduct image is representative only. Actual product may differ in appearance depending on size, configuration, and options selected at order.\u003c\/em\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .hcrhsi-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hcrhsi-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hcrhsi-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hcrhsi-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hcrhsi-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hcrhsi-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hcrhsi-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hcrhsi-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hcrhsi-desc__nocert { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; }\n  .hcrhsi-desc__nocert-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #C8102E; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }\n  .hcrhsi-desc__nocert-body { font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hcrhsi-desc__nocert-body strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n\n  .hcrhsi-desc__note { background: #F3F6F8; border-left: 4px solid #001F3F; border-radius: 0 4px 4px 0; padding: 12px 16px; margin-bottom: 20px; font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hcrhsi-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hcrhsi-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hcrhsi-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hcrhsi-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hcrhsi-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hcrhsi-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hcrhsi-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #001F3F; margin-bottom: 8px; }\n  .hcrhsi-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hcrhsi-desc__compare-item:last-child { margin-bottom: 0; }\n  .hcrhsi-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hcrhsi-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hcrhsi-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hcrhsi-desc__checklist { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }\n  .hcrhsi-desc__check { display: flex; align-items: flex-start; gap: 10px; padding: 10px 14px; background: #F3F6F8; border-radius: 5px; border-left: 3px solid #001F3F; }\n  .hcrhsi-desc__check-num { font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 800; color: #C8102E; flex-shrink: 0; line-height: 1.55; min-width: 18px; }\n  .hcrhsi-desc__check-text { font-size: 13px; line-height: 1.55; color: #374151; font-family: 'Open Sans', sans-serif; }\n  .hcrhsi-desc__check-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hcrhsi-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hcrhsi-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hcrhsi-desc__spec-label { font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #718096; margin-bottom: 3px; }\n  .hcrhsi-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hcrhsi-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hcrhsi-desc__spec--highlight .hcrhsi-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hcrhsi-desc__spec--highlight .hcrhsi-desc__spec-value { color: #FFFFFF; }\n  .hcrhsi-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hcrhsi-desc__spec--red .hcrhsi-desc__spec-label { color: #C8102E; }\n  .hcrhsi-desc__spec--red .hcrhsi-desc__spec-value { color: #C8102E; }\n  .hcrhsi-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hcrhsi-desc__spec--amber .hcrhsi-desc__spec-label { color: #92400e; }\n  .hcrhsi-desc__spec--amber .hcrhsi-desc__spec-value { color: #92400e; }\n\n  .hcrhsi-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hcrhsi-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hcrhsi-desc__warranty-sub { font-size: 12px; color: rgba(255,255,255,0.6); font-family: 'Open Sans', sans-serif; margin-top: 2px; }\n\n  @media (max-width: 480px) {\n    .hcrhsi-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hcrhsi-desc\"\u003e\n\n  \u003cp class=\"hcrhsi-desc__intro\"\u003eCustom-manufactured motorized dampers for square and rectangular duct systems: built to your exact dimensions. HCR connects inline to two open duct ends (new construction). HSI slips into existing ductwork through a partial cut on one side only (retrofit). 24 Vac standard, 120 Vac available. Hoyme spring drive or Belimo actuator. Widths 6\"–36\".\u003c\/p\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__nocert\"\u003e\n    \u003cdiv class=\"hcrhsi-desc__nocert-title\"\u003e⚠ Non-Returnable Custom Products\u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__nocert-body\"\u003eHCR and HSI dampers are manufactured to your exact specifications. \u003cstrong\u003eDimensions, actuator, action code, voltage, and motor location cannot be changed after manufacture and units cannot be returned once built.\u003c\/strong\u003e Verify every item on the ordering checklist against the job drawings before submitting. If you have any doubt about dimensions, contact the factory before ordering, not after.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__bullets\"\u003e\n\n    \u003cdiv class=\"hcrhsi-desc__bullet\"\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-text\"\u003e\u003cstrong\u003eBuilt to your exact dimensions\u003c\/strong\u003e: width, height, actuator, action, voltage, steel gauge, and motor location all specified at order; 26 ga. galvanized steel standard, other gauges available\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hcrhsi-desc__bullet\"\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-text\"\u003e\u003cstrong\u003eHSI slip-in for retrofit: one cut, one side only\u003c\/strong\u003e. Built 1\/8\" smaller than ordered dimension to slide inside existing ductwork; 1\" flange seats against the duct exterior; no need to cut all four sides or remove a duct section\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hcrhsi-desc__bullet\"\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-text\"\u003e\u003cstrong\u003eHoyme spring drive or Belimo actuator\u003c\/strong\u003e: Hoyme drive for standard on\/off PO\/PC; specify any Belimo model (TFB24, TFB120, TFB24-SR-T, CMB24-3-T, CMB120-3) for BAS\/DDC applications requiring modulating or floating point control\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__bullet\"\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-text\"\u003e\u003cstrong\u003eCompatible with ADP-0241-05A interlock\u003c\/strong\u003e: the ADP opens the damper and starts the furnace fan together; no end switch needed. For an exhaust fan that must wait until the damper proves open, order the end switch and use a TPX proving adaptor\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hcrhsi-desc__bullet\"\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hcrhsi-desc__bullet-text\"\u003e\u003cstrong\u003eMotor mounts on shortest side by default\u003c\/strong\u003e: specify alternate motor location at order if installation clearance requires it; cannot be changed after manufacture\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__compare\"\u003e\n    \u003cdiv class=\"hcrhsi-desc__compare-card hcrhsi-desc__compare-card--red\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-title\"\u003eHCR: New Construction\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eConnects inline to two open duct ends: standard duct connection\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eNew construction, remodel with open duct runs, duct runs being modified\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eBuilt to exact ordered dimensions\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__compare-card hcrhsi-desc__compare-card--navy\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-title\"\u003eHSI: Retrofit\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eSlips inside existing duct through a partial cut: one side only\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eExisting duct run in place; minimal duct modification; tight access\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__compare-item\"\u003e\n        \u003cspan class=\"hcrhsi-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hcrhsi-desc__compare-text\"\u003eBuilt 1\/8\" smaller than ordered: order the interior duct dimension\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__checklist\"\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e1\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eWidth and height\u003c\/strong\u003e: exact interior duct dimensions in inches; measure the duct opening, not the exterior; for HSI, order the interior dimension. The 1\/8\" undersize is built in at manufacture\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e2\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: HCR (inline, new construction) or HSI (slip-in, retrofit)\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e3\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eActuator\u003c\/strong\u003e: Hoyme spring drive (standard) or complete Belimo model number; factory confirms torque compatibility\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e4\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eAction\u003c\/strong\u003e: PO (Power Open \/ Spring Close) or PC (Power Close \/ Spring Open); confirm with controls designer for Belimo modulating or floating point actuators\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e5\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 24 Vac (standard) or 120 Vac\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e6\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eSteel gauge\u003c\/strong\u003e: 26 ga. galvanized standard; specify alternate gauge if required\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__check\"\u003e\n      \u003cspan class=\"hcrhsi-desc__check-num\"\u003e7\u003c\/span\u003e\n      \u003cdiv class=\"hcrhsi-desc__check-text\"\u003e\n\u003cstrong\u003eMotor location\u003c\/strong\u003e: shortest side (default); specify alternate side if clearance at the installation location requires it\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__specs\"\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec hcrhsi-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eBuilt to\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003eYour exact dimensions\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eWidth Range\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003e6\"–36\" custom\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eVoltage\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003e24 Vac standard \/ 120 Vac available\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eConstruction\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003e26 ga. galvanized: other gauges available\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec hcrhsi-desc__spec--red\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eReturns\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003eNon-returnable: custom manufactured\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec hcrhsi-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eHSI Undersize\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003e1\/8\" per face: built in; order interior dimension\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hcrhsi-desc__spec\"\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-label\"\u003eWarranty\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__spec-value\"\u003e2-yr electrical \/ 10-yr mechanical\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"hcrhsi-desc__note\"\u003e\n    \u003cstrong\u003eRound duct application?\u003c\/strong\u003e The standard \u003ca href=\"\/products\/hac-inline-motorized-air-damper-24vac\"\u003eHAC inline damper series\u003c\/a\u003e covers 2\"–20\" round duct in standard stocked configurations without custom ordering: faster lead time, no custom specification required. For fresh air interlock with the furnace fan use \u003ca href=\"\/products\/adp-damper-interlock-relay-adaptor\"\u003eADP-0241-05A\u003c\/a\u003e; order the end switch only with a TPX proving adaptor.\u003c\/div\u003e\n\n  \u003cdiv class=\"hcrhsi-desc__warranty\"\u003e\n    \u003csvg style=\"flex-shrink: 0;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\n      \u003cpath stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"1.8\" stroke=\"#C8102E\" d=\"M9 12l2 2 4-4\"\u003e\u003c\/path\u003e\n    \u003c\/svg\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"hcrhsi-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"hcrhsi-desc__warranty-sub\"\u003eCustom manufactured in Canada  ·  Non-returnable. Verify all specs before ordering\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n","brand":"Hoyme Manufacturing","offers":[{"title":"4\"x6\" \/ Power Open (PO) \/ Standard","offer_id":43336272543787,"sku":"HCR\/HSI-0406-OPO","price":290.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Open (PO) \/ End Switch","offer_id":43336295317547,"sku":"HCR\/HSI-0406-SPO","price":311.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Open (PO) \/ Relay","offer_id":43336295350315,"sku":"HCR\/HSI-0406-OPO-R","price":328.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336295383083,"sku":"HCR\/HSI-0406-SPO-R","price":345.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Closed (PC) \/ Standard","offer_id":43336295415851,"sku":"HCR\/HSI-0406-OPC","price":290.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Closed (PC) \/ End Switch","offer_id":43336295448619,"sku":"HCR\/HSI-0406-SPC","price":311.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Closed (PC) \/ Relay","offer_id":43336295481387,"sku":"HCR\/HSI-0406-OPC-R","price":328.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x6\" \/ Power Closed (PC) \/ End Switch + Relay","offer_id":43336295514155,"sku":"HCR\/HSI-0406-SPC-R","price":345.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Open (PO) \/ Standard","offer_id":43336272576555,"sku":"HCR\/HSI-0408-OPO","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Open (PO) \/ End Switch","offer_id":43336295546923,"sku":"HCR\/HSI-0408-SPO","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Open (PO) \/ Relay","offer_id":43336295579691,"sku":"HCR\/HSI-0408-OPO-R","price":329.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336295612459,"sku":"HCR\/HSI-0408-SPO-R","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Closed (PC) \/ Standard","offer_id":43336295645227,"sku":"HCR\/HSI-0408-OPC","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Closed (PC) \/ End Switch","offer_id":43336295677995,"sku":"HCR\/HSI-0408-SPC","price":312.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Closed (PC) \/ Relay","offer_id":43336295710763,"sku":"HCR\/HSI-0408-OPC-R","price":329.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x8\" \/ Power Closed (PC) \/ End Switch + Relay","offer_id":43336295743531,"sku":"HCR\/HSI-0408-SPC-R","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Open (PO) \/ Standard","offer_id":43336272609323,"sku":"HCR\/HSI-0410-OPO","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Open (PO) \/ End Switch","offer_id":43336295776299,"sku":"HCR\/HSI-0410-SPO","price":314.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Open (PO) \/ Relay","offer_id":43336295809067,"sku":"HCR\/HSI-0410-OPO-R","price":329.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336295841835,"sku":"HCR\/HSI-0410-SPO-R","price":348.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Closed (PC) \/ Standard","offer_id":43336295874603,"sku":"HCR\/HSI-0410-OPC","price":293.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Closed (PC) \/ End Switch","offer_id":43336295907371,"sku":"HCR\/HSI-0410-SPC","price":314.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Closed (PC) \/ Relay","offer_id":43336295940139,"sku":"HCR\/HSI-0410-OPC-R","price":329.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x10\" \/ Power Closed (PC) \/ End Switch + Relay","offer_id":43336295972907,"sku":"HCR\/HSI-0410-SPC-R","price":348.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Open (PO) \/ Standard","offer_id":43336272642091,"sku":"HCR\/HSI-0412-OPO","price":295.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Open (PO) \/ End Switch","offer_id":43336296005675,"sku":"HCR\/HSI-0412-SPO","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Open (PO) \/ Relay","offer_id":43336296038443,"sku":"HCR\/HSI-0412-OPO-R","price":336.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336296071211,"sku":"HCR\/HSI-0412-SPO-R","price":350.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Closed (PC) \/ Standard","offer_id":43336296103979,"sku":"HCR\/HSI-0412-OPC","price":295.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Closed (PC) \/ End Switch","offer_id":43336296136747,"sku":"HCR\/HSI-0412-SPC","price":315.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Closed (PC) \/ Relay","offer_id":43336296169515,"sku":"HCR\/HSI-0412-OPC-R","price":336.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x12\" \/ Power Closed (PC) \/ End Switch + Relay","offer_id":43336296202283,"sku":"HCR\/HSI-0412-SPC-R","price":350.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Open (PO) \/ Standard","offer_id":43336272674859,"sku":"HCR\/HSI-0414-OPO","price":307.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Open (PO) \/ End Switch","offer_id":43336296235051,"sku":"HCR\/HSI-0414-SPO","price":337.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Open (PO) \/ Relay","offer_id":43336296267819,"sku":"HCR\/HSI-0414-OPO-R","price":352.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336296300587,"sku":"HCR\/HSI-0414-SPO-R","price":380.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Closed (PC) \/ Standard","offer_id":43336296333355,"sku":"HCR\/HSI-0414-OPC","price":307.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Closed (PC) \/ End Switch","offer_id":43336296366123,"sku":"HCR\/HSI-0414-SPC","price":337.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Closed (PC) \/ Relay","offer_id":43336296398891,"sku":"HCR\/HSI-0414-OPC-R","price":352.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x14\" \/ Power Closed (PC) \/ End Switch + Relay","offer_id":43336296431659,"sku":"HCR\/HSI-0414-SPC-R","price":380.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Open (PO) \/ Standard","offer_id":43336272707627,"sku":"HCR\/HSI-0416-OPO","price":314.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Open (PO) \/ End Switch","offer_id":43336296464427,"sku":"HCR\/HSI-0416-SPO","price":343.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Open (PO) \/ Relay","offer_id":43336296497195,"sku":"HCR\/HSI-0416-OPO-R","price":360.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Open (PO) \/ End Switch + Relay","offer_id":43336296529963,"sku":"HCR\/HSI-0416-SPO-R","price":387.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Closed (PC) \/ Standard","offer_id":43336296562731,"sku":"HCR\/HSI-0416-OPC","price":314.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Closed (PC) \/ End Switch","offer_id":43336296595499,"sku":"HCR\/HSI-0416-SPC","price":343.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Closed (PC) \/ Relay","offer_id":43336296628267,"sku":"HCR\/HSI-0416-OPC-R","price":360.0,"currency_code":"CAD","in_stock":true},{"title":"4\"x16\" \/ Power Closed (PC) \/ End Switch + 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Use the HCR for new ductwork (it connects inline to open duct ends) or the HSI slip-in model for existing ductwork. Specify HCR or HSI in your quote request.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBelimo TFB120, on\/off spring return, 100 to 240 Vac\u003c\/li\u003e\n\u003cli\u003ePower open or power close (choose on this page), with or without end switch\u003c\/li\u003e\n\u003cli\u003e58 sizes from 6\" x 34\" to 18\" x 36\"\u003c\/li\u003e\n\u003cli\u003eCustom built and non-returnable, so we confirm every specification before building\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFreight quote required.\u003c\/strong\u003e Add the damper to your cart and send a quote request from the cart. We confirm final pricing and freight by email before anything is ordered. No payment is taken online. Prices shown are list prices.\u003c\/p\u003e\u003cp\u003eContractors: order through your HVAC wholesaler for your account pricing. \u003ca href=\"\/pages\/contractor-distributors\"\u003eFind a wholesaler\u003c\/a\u003e. Questions on sizing or wiring? 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Use the HCR for new ductwork (it connects inline to open duct ends) or the HSI slip-in model for existing ductwork. Specify HCR or HSI in your quote request.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBelimo TFB24-SR, spring return modulating, 24 Vac\/dc\u003c\/li\u003e\n\u003cli\u003eBelimo LMB24-SR-T, modulating, 24 Vac\/dc\u003c\/li\u003e\n\u003cli\u003eStandard or with end switch\u003c\/li\u003e\n\u003cli\u003e58 sizes from 6\" x 34\" to 18\" x 36\"\u003c\/li\u003e\n\u003cli\u003eCustom built and non-returnable, so we confirm every specification before building\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFreight quote required.\u003c\/strong\u003e Add the damper to your cart and send a quote request from the cart. We confirm final pricing and freight by email before anything is ordered. No payment is taken online. Prices shown are list prices.\u003c\/p\u003e\u003cp\u003eContractors: order through your HVAC wholesaler for your account pricing. \u003ca href=\"\/pages\/contractor-distributors\"\u003eFind a wholesaler\u003c\/a\u003e. Questions on sizing or wiring? Call 1-800-661-7382.\u003c\/p\u003e","brand":"Hoyme Manufacturing","offers":[{"title":"6\"x34\" \/ TFB24-SR, 24 Vac\/dc \/ Standard","offer_id":67584839909419,"sku":"HCR\/HSI-0634-OPP-J","price":1052.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ TFB24-SR, 24 Vac\/dc \/ End Switch","offer_id":67584839942187,"sku":"HCR\/HSI-0634-SPP-J","price":1062.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ LMB24-SR-T, 24 Vac\/dc \/ Standard","offer_id":67584839974955,"sku":"HCR\/HSI-0634-OPP-M","price":799.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ LMB24-SR-T, 24 Vac\/dc \/ End Switch","offer_id":67584840007723,"sku":"HCR\/HSI-0634-SPP-M","price":818.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ TFB24-SR, 24 Vac\/dc \/ Standard","offer_id":67584840040491,"sku":"HCR\/HSI-0636-OPP-J","price":1053.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ TFB24-SR, 24 Vac\/dc \/ End 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Fire \u0026 Smoke Actuator","description":"\u003cp\u003eCustom square and rectangular motorized damper built to your duct dimensions and factory-fitted with a Belimo FSLF fire and smoke actuator. The Hoyme damper assembly is not UL 555 or UL 555S listed and is not CSA certified, so it is not a substitute where a listed fire, smoke or combination damper is required. Confirm the application with the fire protection engineer before ordering. Use the HCR for new ductwork (it connects inline to open duct ends) or the HSI slip-in model for existing ductwork. Specify HCR or HSI in your quote request.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBelimo FSLF24 US, on\/off spring return, 24 Vac\/dc\u003c\/li\u003e\n\u003cli\u003eBelimo FSLF120 US, on\/off spring return, 120 Vac\u003c\/li\u003e\n\u003cli\u003ePower open or power close (choose on this page), with or without end switch\u003c\/li\u003e\n\u003cli\u003e58 sizes from 6\" x 34\" to 18\" x 36\"\u003c\/li\u003e\n\u003cli\u003eCustom built and non-returnable, so we confirm every specification before building\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFreight quote required.\u003c\/strong\u003e Add the damper to your cart and send a quote request from the cart. We confirm final pricing and freight by email before anything is ordered. No payment is taken online. Prices shown are list prices.\u003c\/p\u003e\u003cp\u003eContractors: order through your HVAC wholesaler for your account pricing. \u003ca href=\"\/pages\/contractor-distributors\"\u003eFind a wholesaler\u003c\/a\u003e. Questions on sizing or wiring? Call 1-800-661-7382.\u003c\/p\u003e","brand":"Hoyme Manufacturing","offers":[{"title":"6\"x34\" \/ FSLF24 US, 24 Vac\/dc \/ Standard","offer_id":67584852918315,"sku":"HCR\/HSI-0634-OPO\/OPC-V","price":1099.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ FSLF24 US, 24 Vac\/dc \/ End Switch","offer_id":67584852951083,"sku":"HCR\/HSI-0634-SPO\/SPC-V","price":1118.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ FSLF120 US, 120 Vac \/ Standard","offer_id":67584852983851,"sku":"HCR\/HSI-0634-OPO\/OPC-W","price":1169.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ FSLF120 US, 120 Vac \/ End Switch","offer_id":67584853016619,"sku":"HCR\/HSI-0634-SPO\/SPC-W","price":1206.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ FSLF24 US, 24 Vac\/dc \/ Standard","offer_id":67584853049387,"sku":"HCR\/HSI-0636-OPO\/OPC-V","price":1100.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ FSLF24 US, 24 Vac\/dc \/ End 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FSLF120 US, 120 Vac \/ End Switch","offer_id":67584860487723,"sku":"HCR\/HSI-1836-SPO\/SPC-W","price":1217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3459\/3067\/files\/hcr.png?v=1775232398"},{"product_id":"hcr-hsi-rectangular-damper-belimo-floating-point","title":"HCR\/HSI Rectangular Damper with Belimo Floating Point Actuator","description":"\u003cp\u003eCustom square and rectangular motorized damper built to your duct dimensions and factory-fitted with a Belimo 3-wire floating point actuator for BAS and DDC control. Floating point actuators hold their last position and have no spring return. Use the HCR for new ductwork (it connects inline to open duct ends) or the HSI slip-in model for existing ductwork. Specify HCR or HSI in your quote request.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBelimo LMB24-3-T or CMB24-3-T, 24 Vac\/dc\u003c\/li\u003e\n\u003cli\u003eBelimo CMB120-3 or LMX120-3, 100 to 230 Vac\u003c\/li\u003e\n\u003cli\u003eStandard or with end switch\u003c\/li\u003e\n\u003cli\u003e58 sizes from 6\" x 34\" to 18\" x 36\"\u003c\/li\u003e\n\u003cli\u003eCustom built and non-returnable, so we confirm every specification before building\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFreight quote required.\u003c\/strong\u003e Add the damper to your cart and send a quote request from the cart. We confirm final pricing and freight by email before anything is ordered. No payment is taken online. Prices shown are list prices.\u003c\/p\u003e\u003cp\u003eContractors: order through your HVAC wholesaler for your account pricing. \u003ca href=\"\/pages\/contractor-distributors\"\u003eFind a wholesaler\u003c\/a\u003e. Questions on sizing or wiring? Call 1-800-661-7382.\u003c\/p\u003e","brand":"Hoyme Manufacturing","offers":[{"title":"6\"x34\" \/ LMB24-3-T, 24 Vac\/dc \/ Standard","offer_id":67584863273003,"sku":"HCR\/HSI-0634-OPP-B","price":693.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ LMB24-3-T, 24 Vac\/dc \/ End Switch","offer_id":67584863305771,"sku":"HCR\/HSI-0634-SPP-B","price":713.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ CMB24-3-T, 24 Vac\/dc \/ Standard","offer_id":67584863338539,"sku":"HCR\/HSI-0634-OPP-C","price":631.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x34\" \/ CMB24-3-T, 24 Vac\/dc \/ End Switch","offer_id":67584863371307,"sku":"HCR\/HSI-0634-SPP-C","price":651.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ LMB24-3-T, 24 Vac\/dc \/ Standard","offer_id":67584863404075,"sku":"HCR\/HSI-0636-OPP-B","price":694.0,"currency_code":"CAD","in_stock":true},{"title":"6\"x36\" \/ LMB24-3-T, 24 Vac\/dc \/ End 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