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17
IO-DV070
IO-DV070
OPERATION
Motorized Ventilation Damper
The motorized ventilation damper is controlled by a
field-supplied ventilation timer, such as the Clean
Comfort DVP-4034748 control. The damper will open
when the ventilation timer is activated to allow fresh air
into the home through the 6" diameter fresh air inlet
return duct. The motorized ventilation damper
will remain closed when the ventilation timer is not
activated to prevent over-ventilating the home when
the unit is dehumidifying or recirculating the indoor air.
The motorized ventilation damper operates on 24VAC
from the control circuit.
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CAUTION!
DO NOT connect high voltage to the damper motor or
damage to the motor will result.
i
CAUTION!
DO NOT force the blade of the damper by hand or
damage to the damper motor may result. The damper
opens in one direction only. The damper rotates very
slowly; allow sufficient time for the damper to cycle.
The damper opens in one direction only. It rotates very
slowly; be sure to allow sufficient time for the damper to
cycle. The damper will take approximately one minute to
cycle from the closed to open or from open to closed.
If the electric ventilation damper fails to operate:
1. Check that the wiring is correct and that voltage is
present at the damper motor.
2. Check for any obstruction inside the damper. If the
electric ventilation damper fails to operate after
performing these checks, it must be replaced.