HCR/HSI Rectangular Damper with Belimo Floating Point Actuator

Custom square and rectangular motorized damper built to your duct dimensions and factory-fitted with a Belimo 3-wire floating point actuator for BAS and DDC control. Floating point actuators hold their last position and have no spring return. Use the HCR for new ductwork (it connects inline to open duct ends) or the HSI slip-in model for existing ductwork. Specify HCR or HSI in your quote request.

• Belimo LMB24-3-T or CMB24-3-T, 24 Vac/dc
• Belimo CMB120-3 or LMX120-3, 100 to 230 Vac
• Standard or with end switch
• 58 sizes from 6" x 34" to 18" x 36"
• Custom built and non-returnable, so we confirm every specification before building

How floating point control works

Floating point actuators use 3-wire control. One signal drives the blade open, the other drives it closed, and with no signal the actuator holds its last position. There is no spring return, so the damper stays where it was if power is lost.

• 24 Vac/dc: LMB24-3-T or CMB24-3-T
• 100 to 230 Vac: CMB120-3 or LMX120-3

The factory confirms actuator torque against the damper size before building. If the damper needs a known position on power loss, see the modulating or TFB120 versions.

HCR or HSI: which one do you need?

The HCR connects inline between two open duct ends, for new construction, remodels and any duct run being modified. The HSI slips into existing ductwork through a partial cut on one side only, so there is no need to remove a duct section or cut all four sides. The HSI is built slightly undersize so it slides inside the duct, and a 1" flange seats against the duct exterior. Order the interior duct dimension for either type, and call the factory if you are unsure how to measure.

Before you request a quote

1. Width and height: exact interior duct dimensions, in inches.
2. Type: HCR (inline) or HSI (slip-in).
3. Actuator: choose it on this page.
4. Control signal: confirm 3-wire floating point with the controls designer.
5. Configuration: standard or with end switch.
6. Steel gauge: 26 ga. galvanized standard; specify another gauge if the job calls for it.
7. Motor location: shortest side by default; specify another side if clearance requires it.

Dimensions, actuator, action, voltage and motor location cannot be changed after manufacture, and custom dampers cannot be returned. If any dimension is in doubt, call 1-800-661-7382 before ordering.

Specifications

Related products

Hoyme spring drive version (24 Vac on/off): HCR/HSI Custom Rectangular Dampers. Round duct: HAC inline damper series. Replacing a competitor part number: cross-reference tool.

Freight quote required. Add the damper to your cart and send a quote request from the cart. We confirm final pricing and freight by email before anything is ordered. No payment is taken online. Prices shown are list prices.

Contractors: order through your HVAC wholesaler for your account pricing. Find a wholesaler. Questions on sizing or wiring? Call 1-800-661-7382.