Io Hvac Controls MD-1206-BM Rectangular Zone Damper 12x6 in

Product Description

The IO HVAC CONTROLS MD-1206-BM is a rectangular 2-position zone damper sized at 12 inches by 6 inches, designed for residential and light commercial HVAC zoning systems. It ships with a Belimo 3-wire actuator mounted on the bottom of the damper body. The 2-position design drives the blade fully open or fully closed based on a 24-volt zone control signal, making it a straightforward fit for standard zone control boards. At 6 pounds, the assembly is manageable for single-technician installation in tight duct runs.

This damper is used in forced-air duct systems where a zone controller divides a structure into independently conditioned areas. The bottom-mount actuator configuration is suited for horizontal duct sections where side or top mounting is obstructed by joists, equipment, or adjacent ductwork. The 12-inch by 6-inch rectangular opening fits common trunk and branch duct sizes used in residential construction and light commercial retrofits. A licensed HVAC technician typically handles installation as part of a complete zoning system upgrade or new installation.

Key Features

• 12-inch by 6-inch rectangular damper body fits standard residential and light commercial duct openings
• 2-position operation drives blade fully open or fully closed - no modulating signal required
• Belimo 3-wire actuator included and factory-mounted for reduced field labor
• Bottom-mount actuator position accommodates restricted horizontal duct installations
• Lightweight at 6 pounds for single-technician handling in attics, crawlspaces, and mechanical rooms

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential and light commercial forced-air zoning systems using 24-volt, 2-position zone control boards compatible with Belimo 3-wire actuators.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut down the air handling unit and de-energize the zone control panel before cutting into ductwork or connecting low-voltage wiring. The actuator wiring must be routed to a compatible 24-volt zone control board; consult the zone controller manufacturer wiring diagram for terminal assignments. Seal all duct connections per local mechanical code after the damper is secured in the duct opening.