The MD624 motorized damper mounts inline with the ducting to either the Air King QFAM or FAS units. The lead wires from the motorized damper connect to the included transformer that easily plugs into the receptacle inside the QFAM/FAS unit. The single blade damper with an internal gasket tightly closes off ducting to minimize air leakage. When the QFAM/FAS is energized, the damper automatically opens, then closes when the main unit shuts off.
Models | MD624 |
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Specification Sheet Download | MD624 |
Construction | Galvanized Steel |
Damper | Single blade with internal gasket |
Lead Wires | 22 AWG, 12 inches |
Connections | 24 volt transformer |
Use With | QFAM, FAS |
Power | 24VAC, 60hz, 6 watts |
Dimensions | ![]() |
Motorized Damper with internal gasket
24 volt transformer
User manual
QMDB Motorized Damper Relay Box
Allows the MD624 to be plugged into an Air King QFAM
Includes required wire harness
Download Instructions