The RRD is a round damper that is easily inserted into rigid round ducts for retrofit zoning in forced air heating and cooling systems. This power open, power closed damper actuator is available in four sizes for 5 in, 6 in, 7 in and 8 in ducts.
Honeywell Dampers
Commercial/Residential
Retro Round Dampers
Easily inserted into rigid round ducts
For retrofit zoning in forced air heating and cooling systems.
Used with Honeywell HZ221, HZ311, HZ322, HZ432 and similar zone control systems.
The power open, power closed actuator draws 2 VA allowing multiple dampers per zone
Honeywell Home Retrofit Damper, Series: RRD, 6 in Dia, Round, 24 VAC, 90 deg Rotation, 90 s Timing, Power Open, Power Closed Motor, 3 Wire, 41 to 122 deg F, Steel, Galvanized