{"title":"Belimo Series - Floating Point \u0026 Fire\/Smoke","description":"\u003cp\u003eBe\u003c\/p\u003e","products":[{"product_id":"hac-belimo-cmb24-3-t-floating-point-24vac","title":"HAC 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\n  .hac34-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac34-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac34-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac34-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac34-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac34-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac34-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac34-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac34-desc__no-sr { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; }\n  .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; }\n  .hac34-desc__no-sr-body { font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac34-desc__no-sr-body strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n\n  .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; }\n  .hac34-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .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; 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font-weight: 800; color: #C8102E; }\n  .hac34-desc__selector td:first-child { font-size: 12.5px; }\n  .hac34-desc__selector td:nth-child(2) { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #374151; font-size: 12px; white-space: nowrap; }\n\n  .hac34-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac34-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .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; }\n  .hac34-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac34-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac34-desc__spec--highlight .hac34-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac34-desc__spec--highlight .hac34-desc__spec-value { color: #FFFFFF; }\n  .hac34-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac34-desc__spec--red .hac34-desc__spec-label { color: #C8102E; }\n  .hac34-desc__spec--red .hac34-desc__spec-value { color: #C8102E; }\n  .hac34-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac34-desc__spec--amber .hac34-desc__spec-label { color: #92400e; }\n  .hac34-desc__spec--amber .hac34-desc__spec-value { color: #92400e; }\n\n  .hac34-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac34-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac34-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=\"hac34-desc\"\u003e\n\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\n  \u003c!-- NO SPRING RETURN — mandatory prominent callout for all no-SR Belimo products --\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 — 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\n  \u003cdiv class=\"hac34-desc__bullets\"\u003e\n\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\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\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\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\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\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\n  \u003c\/div\u003e\n\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\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\u003eUL 555S fire and smoke rated, 24 Vac\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\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 hac34-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac34-desc__spec-label\"\u003eHeat Bypass (-H)\u003c\/div\u003e\n      \u003cdiv class=\"hac34-desc__spec-value\"\u003eAvailable — confirm pricing with wholesaler\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\"\u003eConfirm with Hoyme before ordering\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac34-desc__note\"\u003e\n    \u003cstrong\u003eOrdering the -H heat bypass variant?\u003c\/strong\u003e In the variant selector, -H variants are priced lower than the standard (non-bypass) variants at several sizes — which is unusual for an add-on option. Confirm the correct variant and pricing with your wholesaler or Hoyme directly before ordering. 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\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\n\u003c\/div\u003e","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":495.0,"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":498.0,"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-lmb24-3-t-floating-point-small-duct","title":"HAC Inline Damper with Belimo LMB24-3-T — Floating Point, 3-Wire, 24 Vac\/dc, 6\"–20\", Holds Last Position","description":"\u003cstyle\u003e\n  .hac30-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac30-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac30-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac30-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac30-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac30-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac30-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac30-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  \/* No spring return — primary critical callout *\/\n  .hac30-desc__nocert { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; }\n  .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; }\n  .hac30-desc__nocert-body { font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac30-desc__nocert-body strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac30-desc__nocert-body a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .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; }\n  .hac30-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .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; }\n  .hac30-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac30-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  \/* HAC-30 vs HAC-34 compare *\/\n  .hac30-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hac30-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hac30-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hac30-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hac30-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #001F3F; margin-bottom: 10px; }\n  .hac30-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hac30-desc__compare-item:last-child { margin-bottom: 0; }\n  .hac30-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac30-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac30-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  \/* Specs *\/\n  .hac30-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac30-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .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; }\n  .hac30-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac30-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac30-desc__spec--red .hac30-desc__spec-label { color: #C8102E; }\n  .hac30-desc__spec--red .hac30-desc__spec-value { color: #C8102E; }\n  .hac30-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac30-desc__spec--highlight .hac30-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac30-desc__spec--highlight .hac30-desc__spec-value { color: #FFFFFF; }\n  .hac30-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac30-desc__spec--amber .hac30-desc__spec-label { color: #92400e; }\n  .hac30-desc__spec--amber .hac30-desc__spec-value { color: #92400e; }\n\n  .hac30-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac30-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac30-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    .hac30-desc__compare { grid-template-columns: 1fr; }\n  }\n\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\u003c!-- No spring return — primary constraint --\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\u003c!-- HAC-30 vs HAC-34 --\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\"\u003eConfirm with Hoyme before ordering\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","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 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\n  .hac35-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac35-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac35-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac35-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac35-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac35-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac35-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac35-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac35-desc__nocert { background: #fff3f4; 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}\n  .hac35-desc__spec--red .hac35-desc__spec-value { color: #C8102E; }\n  .hac35-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac35-desc__spec--highlight .hac35-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac35-desc__spec--highlight .hac35-desc__spec-value { color: #FFFFFF; }\n  .hac35-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac35-desc__spec--amber .hac35-desc__spec-label { color: #92400e; }\n  .hac35-desc__spec--amber .hac35-desc__spec-value { color: #92400e; }\n\n  .hac35-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac35-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac35-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    .hac35-desc__compare { grid-template-columns: 1fr; }\n  }\n\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 — no step-down transformer, no low-voltage circuit 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\u003c!-- -H bypass warning retained — confirmed from source --\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\u003c!-- CORRECTION: The pricing anomaly warning box and amber spec card have been removed.\n       The description and source document both claimed that SPP-H is priced lower than SPP\n       at 6\" and 8\". The 2026 price list contradicts this:\n         HAC-0635-SPP: $586 vs HAC-0635-SPP-H: $606 — H is $20 MORE expensive (normal)\n         HAC-0835-SPP: $587 vs HAC-0835-SPP-H: $608 — H is $21 MORE expensive (normal)\n       The anomaly exists on HAC-34 (confirmed) but does NOT exist on HAC-35 in the 2026\n       price list. Publishing the warning would mislead contractors into unnecessarily\n       confirming pricing that is already normal. Amber spec card replaced with standard\n       -H availability card. --\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\"\u003eConfirm with Hoyme before ordering\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","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":553.0,"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":575.0,"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":587.0,"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":611.0,"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":660.0,"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 — UL 555S Listed 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\u003cstyle\u003e\n  .hac90-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac90-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac90-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac90-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac90-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac90-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac90-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac90-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac90-desc__nocert { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; }\n  .hac90-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  .hac90-desc__nocert-body { font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac90-desc__nocert-body strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac90-desc__nocert-body a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac90-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  .hac90-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac90-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  .hac90-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac90-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac90-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hac90-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hac90-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hac90-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hac90-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #001F3F; margin-bottom: 10px; }\n  .hac90-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hac90-desc__compare-item:last-child { margin-bottom: 0; }\n  .hac90-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac90-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac90-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hac90-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac90-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac90-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  .hac90-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac90-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac90-desc__spec--highlight .hac90-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac90-desc__spec--highlight .hac90-desc__spec-value { color: #FFFFFF; }\n  .hac90-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac90-desc__spec--red .hac90-desc__spec-label { color: #C8102E; }\n  .hac90-desc__spec--red .hac90-desc__spec-value { color: #C8102E; }\n  .hac90-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac90-desc__spec--amber .hac90-desc__spec-label { color: #92400e; }\n  .hac90-desc__spec--amber .hac90-desc__spec-value { color: #92400e; }\n\n  .hac90-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac90-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac90-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    .hac90-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hac90-desc\"\u003e\n\n  \u003cp class=\"hac90-desc__intro\"\u003eHoyme inline damper body with Belimo FSLF24 US — a UL 555S listed fire and smoke actuator for smoke damper applications at 24 Vac. The FSLF designation is not a marketing label. It means the actuator has been tested and listed to UL Standard 555S — covering minimum torque, maximum actuation time to fail-safe, elevated temperature performance, and construction for smoke-laden air. Sizes 6\"–20\".\u003c\/p\u003e\n\n  \u003cdiv class=\"hac90-desc__nocert\"\u003e\n    \u003cdiv class=\"hac90-desc__nocert-title\"\u003e⚠ Do Not Substitute HAC-40 (TFB24) on Smoke Damper Applications\u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__nocert-body\"\u003eThe standard Belimo TFB24 (\u003ca href=\"\/products\/hac-belimo-tfb24-inline-damper-24vac\"\u003eHAC-40\u003c\/a\u003e) is \u003cstrong\u003eNOT UL 555S listed\u003c\/strong\u003e and does not meet the torque, actuation speed, elevated temperature, or construction requirements for smoke damper service. Substituting HAC-40 for HAC-90 on a code-required smoke damper application will not pass inspection, creates liability exposure for the installing contractor and building owner, and may affect the certificate of occupancy. The cost of replacement after a failed inspection exceeds the price premium of specifying HAC-90 correctly the first time.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-desc__bullets\"\u003e\n\n    \u003cdiv class=\"hac90-desc__bullet\"\u003e\n      \u003cspan class=\"hac90-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac90-desc__bullet-text\"\u003e\u003cstrong\u003eUL 555S listed — FSLF24 US\u003c\/strong\u003e — tested to the UL standard for smoke damper actuators: minimum torque, maximum time-to-fail-safe, elevated temperature performance, smoke-laden air construction\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac90-desc__bullet\"\u003e\n      \u003cspan class=\"hac90-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac90-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac\/dc supply\u003c\/strong\u003e — receives fail-safe signal from smoke control panel; coordinates with fire alarm system and smoke control commissioning sequence\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- CORRECTION: Original said \"End switch on every size\" — this reads as included\n         standard on every unit. The price list shows OPO (no end switch) and SPO\/SPC\n         (with end switch) as separate variants at different prices. End switch is optional,\n         not standard. Source document says \"End switch available on all sizes.\"\n         Changed to match source language: \"available on all sizes\" — the end switch\n         must be selected by specifying SPO or SPC at order. --\u003e\n    \u003cdiv class=\"hac90-desc__bullet\"\u003e\n      \u003cspan class=\"hac90-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac90-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch available on all sizes\u003c\/strong\u003e — provides position feedback to the fire alarm or smoke control system; wiring requirements specified by smoke control system design, not HVAC contractor preference\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac90-desc__bullet\"\u003e\n      \u003cspan class=\"hac90-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac90-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo FSLF24 US field-replaceable\u003c\/strong\u003e — available through Belimo distributors; after replacement, smoke damper system must be re-commissioned and replacement documented per maintenance requirements\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac90-desc__bullet\"\u003e\n      \u003cspan class=\"hac90-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac90-desc__bullet-text\"\u003e\u003cstrong\u003e120 Vac smoke damper application?\u003c\/strong\u003e — see \u003ca href=\"\/products\/hac-belimo-fslf120-fire-smoke-damper-120vac\" style=\"color: #c8102e; text-decoration: none; font-weight: 600;\"\u003eHAC-80 (FSLF120 US)\u003c\/a\u003e — same UL 555S listing, line voltage supply\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-desc__warning\"\u003e\n    \u003cstrong\u003eAction code must be confirmed by the fire protection engineer in writing before ordering.\u003c\/strong\u003e PO or PC on a smoke damper is a life-safety decision that determines which position the blade moves to during a fire event. Different locations in the same smoke control system may require different action codes. Do not assume, do not default — get the action code from the fire protection engineer before placing the order.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-desc__compare\"\u003e\n    \u003cdiv class=\"hac90-desc__compare-card hac90-desc__compare-card--red\"\u003e\n      \u003cdiv class=\"hac90-desc__compare-title\"\u003eHAC-90 (FSLF24 US) — smoke damper\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eUL 555S listed — smoke damper actuator standard\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eElevated temperature performance — tested for fire event conditions\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eMaximum actuation time to fail-safe — meets UL 555S timing requirement\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eRequired on smoke dampers — code, specification, or AHJ mandates UL 555S\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__compare-card hac90-desc__compare-card--navy\"\u003e\n      \u003cdiv class=\"hac90-desc__compare-title\"\u003eHAC-40 (TFB24) — standard HVAC only\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eNot UL 555S listed — not acceptable for smoke damper applications\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eStandard HVAC temperature range only\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eFresh air, ventilation, zone control — no listing requirement\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__compare-item\"\u003e\n        \u003cspan class=\"hac90-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac90-desc__compare-text\"\u003eLower cost — correct choice when UL 555S is not required\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-desc__specs\"\u003e\n    \u003cdiv class=\"hac90-desc__spec hac90-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eListing\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003eUL 555S — smoke damper actuator\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__spec\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003eBelimo FSLF24 US\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__spec\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003e24 Vac\/dc\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__spec\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__spec hac90-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eAction Code\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003eFire protection engineer — in writing\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac90-desc__spec hac90-desc__spec--red\"\u003e\n      \u003cdiv class=\"hac90-desc__spec-label\"\u003eTFB24 Substitute?\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__spec-value\"\u003eNever — not listed for smoke service\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-desc__note\"\u003e\n    \u003cstrong\u003eSmoke control system coordination required.\u003c\/strong\u003e The HAC-90 does not operate independently. The FSLF24 US receives its fail-safe signal from the smoke control panel — not from a standard HVAC controller or BAS. Coordinate with the fire protection engineer and fire alarm system installer on control wiring, fail-safe signal source, and the verification sequence required by the smoke control commissioning plan. End switch wiring requirements are specified by the smoke control system design. For 120 Vac smoke damper applications see \u003ca href=\"\/products\/hac-belimo-fslf120-fire-smoke-damper-120vac\"\u003eHAC-80 (FSLF120 US)\u003c\/a\u003e.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac90-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=\"hac90-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"hac90-desc__warranty-sub\"\u003eHoyme damper body — Made in Canada  ·  Belimo FSLF24 US field-replaceable through Belimo distributors\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\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 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(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 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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 — UL 555S Listed 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\u003cstyle\u003e\n  .hac80-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac80-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac80-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac80-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac80-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac80-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac80-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac80-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  .hac80-desc__nocert { background: #fff3f4; border: 2px solid #C8102E; border-radius: 5px; padding: 14px 18px; margin-bottom: 20px; }\n  .hac80-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  .hac80-desc__nocert-body { font-size: 13.5px; color: #001F3F; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac80-desc__nocert-body strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac80-desc__nocert-body a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac80-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  .hac80-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac80-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  .hac80-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac80-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac80-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hac80-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hac80-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hac80-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hac80-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #001F3F; margin-bottom: 10px; }\n  .hac80-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; }\n  .hac80-desc__compare-item:last-child { margin-bottom: 0; }\n  .hac80-desc__compare-dot--red { color: #C8102E; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac80-desc__compare-dot--navy { color: #001F3F; font-weight: 700; font-size: 13px; flex-shrink: 0; line-height: 1.5; }\n  .hac80-desc__compare-text { font-size: 12.5px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.45; }\n\n  .hac80-desc__specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 20px; }\n  .hac80-desc__spec { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 10px 12px; }\n  .hac80-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  .hac80-desc__spec-value { font-family: 'Montserrat', sans-serif; font-size: 12.5px; font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac80-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac80-desc__spec--highlight .hac80-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac80-desc__spec--highlight .hac80-desc__spec-value { color: #FFFFFF; }\n  .hac80-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac80-desc__spec--red .hac80-desc__spec-label { color: #C8102E; }\n  .hac80-desc__spec--red .hac80-desc__spec-value { color: #C8102E; }\n  .hac80-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac80-desc__spec--amber .hac80-desc__spec-label { color: #92400e; }\n  .hac80-desc__spec--amber .hac80-desc__spec-value { color: #92400e; }\n\n  .hac80-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac80-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac80-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    .hac80-desc__compare { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hac80-desc\"\u003e\n\n  \u003cp class=\"hac80-desc__intro\"\u003eHoyme inline damper body with Belimo FSLF120 US — the 120 Vac version of the UL 555S listed fire and smoke actuator series. Same listing, same smoke damper application requirements, same elevated temperature construction as the FSLF24 US used in the HAC-90. One difference: the FSLF120 US accepts 120 Vac directly — no step-down transformer, no low-voltage control circuit required at the damper location. Sizes 6\"–20\".\u003c\/p\u003e\n\n  \u003cdiv class=\"hac80-desc__nocert\"\u003e\n    \u003cdiv class=\"hac80-desc__nocert-title\"\u003e⚠ Do Not Substitute HAC-44 (TFB120) on Smoke Damper Applications\u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__nocert-body\"\u003eThe standard Belimo TFB120 (\u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44\u003c\/a\u003e) is \u003cstrong\u003eNOT UL 555S listed\u003c\/strong\u003e and does not meet the torque, actuation speed, elevated temperature performance, or construction requirements for smoke damper service. Substituting HAC-44 for HAC-80 on a code-required smoke damper application will not pass inspection, creates liability exposure for the installing contractor and building owner, and affects the certificate of occupancy. Specify HAC-80 correctly the first time.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac80-desc__bullets\"\u003e\n\n    \u003cdiv class=\"hac80-desc__bullet\"\u003e\n      \u003cspan class=\"hac80-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac80-desc__bullet-text\"\u003e\u003cstrong\u003eUL 555S listed — FSLF120 US\u003c\/strong\u003e — same listing as the FSLF24 US; same minimum torque, maximum time-to-fail-safe, elevated temperature performance, and smoke-laden air construction requirements\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac80-desc__bullet\"\u003e\n      \u003cspan class=\"hac80-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac80-desc__bullet-text\"\u003e\u003cstrong\u003e120 Vac direct\u003c\/strong\u003e — no step-down transformer; run the switched 120 Vac smoke control circuit directly to the actuator when line voltage is all that's available at the damper location\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- CORRECTION: Original said \"End switch on every size\" — same issue as HAC-90.\n         Price list shows OPO (no end switch) and SPO\/SPC (with end switch) as separate\n         variants at different prices — end switch is optional and must be selected.\n         Source document says \"End switch available on all sizes.\" Changed to match. --\u003e\n    \u003cdiv class=\"hac80-desc__bullet\"\u003e\n      \u003cspan class=\"hac80-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac80-desc__bullet-text\"\u003e\u003cstrong\u003eEnd switch available on all sizes\u003c\/strong\u003e — provides position feedback to the fire alarm or smoke control system; wiring requirements specified by smoke control system design, not HVAC contractor preference\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac80-desc__bullet\"\u003e\n      \u003cspan class=\"hac80-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac80-desc__bullet-text\"\u003e\u003cstrong\u003eBelimo FSLF120 US field-replaceable\u003c\/strong\u003e — available through Belimo distributors; after replacement the smoke damper system must be re-commissioned and the replacement documented per maintenance requirements and applicable code\u003c\/span\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"hac80-desc__bullet\"\u003e\n      \u003cspan class=\"hac80-desc__bullet-check\"\u003e✓\u003c\/span\u003e\n      \u003cspan class=\"hac80-desc__bullet-text\"\u003e\u003cstrong\u003e24 Vac available at the damper location?\u003c\/strong\u003e — use \u003ca style=\"color: #c8102e; text-decoration: none; font-weight: 600;\" href=\"\/products\/hac-belimo-fslf24-fire-smoke-damper-24vac\"\u003eHAC-90 (FSLF24 US)\u003c\/a\u003e instead — simpler integration into BAS and fire alarm systems that typically operate on low voltage\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac80-desc__warning\"\u003e\n    \u003cstrong\u003eAction code must be confirmed by the fire protection engineer in writing before ordering.\u003c\/strong\u003e PO or PC on a smoke damper is a life-safety decision — the fail-safe direction determines where the blade moves during a fire event. Different locations in the same smoke control system may require different action codes. Do not assume, do not default — get the action code from the fire protection engineer before placing the order.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac80-desc__compare\"\u003e\n    \u003cdiv class=\"hac80-desc__compare-card hac80-desc__compare-card--red\"\u003e\n      \u003cdiv class=\"hac80-desc__compare-title\"\u003eHAC-80 (FSLF120 US) — this product\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eUL 555S listed — smoke damper actuator\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eOnly 120 Vac available at the damper location\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eSmoke control infrastructure operates at line voltage\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--red\"\u003e✓\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eAdding a step-down transformer is impractical or not permitted\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__compare-card hac80-desc__compare-card--navy\"\u003e\n      \u003cdiv class=\"hac80-desc__compare-title\"\u003eHAC-90 (FSLF24 US) — use instead when…\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003e24 Vac is available at the damper location\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eBAS or fire alarm system operates on low voltage\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eSimpler wiring — 24 Vac control is standard on most smoke control infrastructure\u003c\/span\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__compare-item\"\u003e\n        \u003cspan class=\"hac80-desc__compare-dot--navy\"\u003e→\u003c\/span\u003e\u003cspan class=\"hac80-desc__compare-text\"\u003eSame UL 555S listing — preferred when voltage allows\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- CORRECTION 2: Amber spec card previously said \"18\" \/ 20\" Pricing — Anomaly.\"\n       2026 price list:\n         18\": OPO=$1,278, OPC=$1,278, SPO=$1,329, SPC=$1,329 — NORMAL (end switch costs more)\n         20\": OPO=$1,313, OPC=$1,313, SPO=$1,244, SPC=$1,244 — ANOMALY (end switch is $69 CHEAPER)\n       The 18\" anomaly noted in the source document does not appear in the 2026 price list.\n       Card updated to reference 20\" only. --\u003e\n  \u003cdiv class=\"hac80-desc__specs\"\u003e\n    \u003cdiv class=\"hac80-desc__spec hac80-desc__spec--highlight\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eListing\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003eUL 555S — smoke damper actuator\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eActuator\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003eBelimo FSLF120 US\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eSupply Voltage\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003e120 Vac\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eSizes\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003e6\"–20\" even inches\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec hac80-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eAction Code\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003eFire protection engineer — in writing\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec hac80-desc__spec--red\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003eTFB120 Substitute?\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003eNever — not listed for smoke service\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"hac80-desc__spec hac80-desc__spec--amber\"\u003e\n      \u003cdiv class=\"hac80-desc__spec-label\"\u003e20\" Pricing\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__spec-value\"\u003eAnomaly — confirm with wholesaler\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hac80-desc__note\"\u003e\n    \u003cstrong\u003eSmoke control system coordination required.\u003c\/strong\u003e The HAC-80 receives its fail-safe signal from the smoke control panel or fire alarm system — not from a standard HVAC controller. Coordinate with the fire protection engineer and fire alarm system installer on control wiring, fail-safe signal source, and commissioning verification. End switch wiring is defined by the smoke control system design. For 24 Vac smoke damper applications see \u003ca href=\"\/products\/hac-belimo-fslf24-fire-smoke-damper-24vac\"\u003eHAC-90 (FSLF24 US)\u003c\/a\u003e. For line-voltage on\/off without smoke listing see \u003ca href=\"\/products\/hac-belimo-tfb120-inline-damper-100-240vac\"\u003eHAC-44 (TFB120)\u003c\/a\u003e.\u003c\/div\u003e\n\n  \u003cdiv class=\"hac80-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=\"hac80-desc__warranty-text\"\u003e2-year electrical  ·  10-year mechanical warranty\u003c\/div\u003e\n      \u003cdiv class=\"hac80-desc__warranty-sub\"\u003eHoyme damper body — Made in Canada  ·  Belimo FSLF120 US field-replaceable through Belimo distributors\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\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 (H)","offer_id":43093825257515,"sku":"HAC-0680-SPO-H","price":1202.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Standard","offer_id":43093825290283,"sku":"HAC-0680-SPC","price":1180.0,"currency_code":"CAD","in_stock":true},{"title":"6\" \/ Power Close + End Switch \/ Heat (H)","offer_id":43093825323051,"sku":"HAC-0680-SPC-H","price":1202.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Standard","offer_id":43093825355819,"sku":"HAC-0880-OPO","price":1148.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Open (PO) \/ Heat (H)","offer_id":43093825388587,"sku":"HAC-0880-OPO-H","price":1172.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Standard","offer_id":43093825421355,"sku":"HAC-0880-OPC","price":1148.0,"currency_code":"CAD","in_stock":true},{"title":"8\" \/ Power Close (PC) \/ Heat 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Power Open Only, 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   .hac70-desc * { box-sizing: border-box; margin: 0; padding: 0; }\n  .hac70-desc { font-family: 'Open Sans', sans-serif; color: #001F3F; line-height: 1.6; font-size: 15px; }\n\n  .hac70-desc__intro { font-size: 15px; line-height: 1.75; color: #374151; margin-bottom: 20px; }\n\n  .hac70-desc__bullets { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }\n  .hac70-desc__bullet { display: flex; align-items: flex-start; gap: 10px; }\n  .hac70-desc__bullet-check { color: #C8102E; font-weight: 700; font-size: 14px; flex-shrink: 0; line-height: 1.6; }\n  .hac70-desc__bullet-text { font-size: 14px; color: #374151; font-family: 'Open Sans', sans-serif; line-height: 1.6; }\n  .hac70-desc__bullet-text strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #001F3F; }\n\n  \/* Dual constraint — no spring return + PO only *\/\n  .hac70-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  .hac70-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  .hac70-desc__dual-warning-icon { color: #C8102E; font-weight: 800; font-size: 14px; flex-shrink: 0; line-height: 1.55; }\n  .hac70-desc__dual-warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n  .hac70-desc__dual-warning a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  .hac70-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  .hac70-desc__warning strong { font-family: 'Montserrat', sans-serif; font-weight: 700; color: #C8102E; }\n\n  .hac70-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  .hac70-desc__note strong { font-family: 'Montserrat', sans-serif; font-weight: 700; }\n  .hac70-desc__note a { color: #C8102E; text-decoration: none; font-weight: 600; }\n\n  \/* HAC-70 vs HAC-35 compare *\/\n  .hac70-desc__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }\n  .hac70-desc__compare-card { background: #F3F6F8; border: 1px solid #e2e8f0; border-radius: 5px; padding: 12px 14px; }\n  .hac70-desc__compare-card--red { border-top: 3px solid #C8102E; }\n  .hac70-desc__compare-card--navy { border-top: 3px solid #001F3F; }\n  .hac70-desc__compare-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 800; color: #001F3F; margin-bottom: 10px; }\n  .hac70-desc__compare-item { display: flex; align-items: flex-start; gap: 7px; margin-bottom: 5px; 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font-weight: 700; color: #001F3F; line-height: 1.35; }\n  .hac70-desc__spec--red { background: #fff3f4; border-color: #C8102E; }\n  .hac70-desc__spec--red .hac70-desc__spec-label { color: #C8102E; }\n  .hac70-desc__spec--red .hac70-desc__spec-value { color: #C8102E; }\n  .hac70-desc__spec--highlight { background: #001F3F; border-color: #001F3F; }\n  .hac70-desc__spec--highlight .hac70-desc__spec-label { color: rgba(255,255,255,0.5); }\n  .hac70-desc__spec--highlight .hac70-desc__spec-value { color: #FFFFFF; }\n  .hac70-desc__spec--amber { background: #fffbeb; border-color: #d97706; }\n  .hac70-desc__spec--amber .hac70-desc__spec-label { color: #92400e; }\n  .hac70-desc__spec--amber .hac70-desc__spec-value { color: #92400e; }\n\n  .hac70-desc__warranty { display: flex; align-items: center; gap: 10px; background: #001F3F; border-radius: 5px; padding: 12px 16px; }\n  .hac70-desc__warranty-text { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: #FFFFFF; }\n  .hac70-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    .hac70-desc__compare { grid-template-columns: 1fr; }\n  }\n\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\u003c!-- Dual constraint — PO only + no spring return --\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\u003c!-- HAC-70 vs HAC-35 --\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\u003c!-- Line-voltage HAC routing table --\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 UL 555S, 120 Vac\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\"\u003eConfirm with Hoyme before ordering\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","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"}],"url":"https:\/\/www.hoyme.com\/collections\/belimo-series-floating-point-fire-smoke.oembed","provider":"Hoyme Manufacturing","version":"1.0","type":"link"}