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The IO HVAC CONTROLS MD-1412 is a rectangular 2-position zone damper designed for HVAC zoning applications in ducted forced-air systems. It ships with a Belimo 3-wire actuator that drives the blade between fully open and fully closed positions, giving zone controllers precise airflow authority over individual zones. At 14 inches wide by 12 inches tall, this damper fits standard rectangular duct openings of that size. The unit weighs 7 pounds and is built for straightforward inline duct installation. HVAC technicians working on residential or light commercial zoning systems are the primary installers of this damper.
This damper is suited for residential and light commercial forced-air zoning systems where individual zone control is required. It is installed inline in rectangular supply or return ductwork to regulate airflow to a specific zone. The included Belimo 3-wire actuator connects to a zone control board or thermostat panel, allowing the damper to open or close on demand. Systems requiring reliable 2-position control in rectangular duct runs benefit from this configuration.
Designed as an OEM-style replacement or new-installation zone damper for rectangular ducted forced-air HVAC zoning systems requiring a 14-inch by 12-inch opening with a 3-wire Belimo-style actuator interface.
Installation should be performed by a licensed HVAC technician. Shut down the air handler and de-energize the zone control panel before mounting the damper or connecting actuator wiring. The damper is installed inline in the rectangular duct run and fastened per standard sheet metal practices. Actuator wiring should be run and connected to the zone control board following the control board manufacturer's low-voltage wiring guidelines.
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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