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The IO HVAC CONTROLS CD-2812 is a rectangular zone damper designed for use in zoned forced-air HVAC systems. It ships with a Belimo 3-wire actuator, providing reliable open-close control in residential and light commercial zoning applications. The damper measures 28 inches wide by 12 inches tall and weighs 12 pounds. Licensed HVAC technicians install this unit as part of a multi-zone ducted system, where precise airflow control to individual zones improves comfort and system efficiency. The Belimo actuator delivers consistent torque and long service life, making this a dependable choice for new installations and retrofit work alike.
The CD-2812 is built for rectangular duct installations in forced-air zoning systems. Its 28-by-12-inch face size suits common residential trunk or branch duct configurations. The included Belimo 3-wire actuator is compatible with standard zone control boards that output a 3-wire (open-close-common) signal, making integration into existing or new zoning systems straightforward. This damper is suited for Carrier and Bryant duct systems where a rectangular zone damper of this size is required.
Designed for use with Carrier and Bryant rectangular duct zoning systems requiring a 28-inch by 12-inch zone damper with a Belimo 3-wire actuator.
Installation should be performed by a licensed HVAC technician. De-energize the air handler and zone control panel before beginning work. The damper is typically mounted in-line within the supply duct and secured per the duct system manufacturer guidelines. Low-voltage wiring to the Belimo actuator should be routed and connected according to the zone control board manufacturer wiring diagram.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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