The MD624 motorized damper mounts in line with the ducting to either the QFDC or MQF Fresh Air units. The lead wires from the motorized damper connect to the included transformer that easily plugs into the receptacle inside the Fresh Air unit. The single blade damper with an internal gasket tightly closes off ducting to minimize air leakage. When the unit is energized, the damper automatically opens, then closes when the main unit shuts off.
- Automatically opens when the QFDC or MQF is operating
- Tight sealing damper minimizes any air leakage
- Transformer and lead wire included