Installation Manual

OPERATION
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
16
Humidity Control
The humidity control is an adjustable switch that closes
when the relave humidity of the air in which it is located
rises to the screen set point. The DV090 dehumidier is
equipped with an automac defrost mechanism. If the
dehumidier operates in condions that develop frost
on the evaporator, it will sense the frost build-up and
automacally defrost the evaporator. The dehumidier
may not appear to be operang correctly during the
defrost sequence, but once the defrost sequence is
completed, the unit will resume dehumidifying.
Programmable Ventilation Timer –
DVP-4034748 / DVP-4034753
The venlaon mer controls the impeller fan and the
motorized fresh air damper. When the venlaon mer
is acvated, the dehumidier will circulate the indoor
air, and bring in fresh air from outside. The venlaon
mer should be set for the required venlaon of the
residence. The home should be venlated with fresh air
as suggested by applicable codes and standards.If the
dehumidier fails to venlate as expected, check that the
me on the mer is correct. Also check the programs on
the mer to be sure that the mer is calling for venla-
on at the correct mes
Motorized Ventilation Damper
The motorized venlaon damper is controlled by a eld-
supplied venlaon mer, such as the Clean Comfort
DVP-4034748 control. The damper will open when the
venlaon mer is acvated to allow fresh air into the
home through the 6" diameter fresh air inlet supply duct.
The motorized venlaon damper will remain closed when
the venlaon mer is not acvated to prevent over-venlang
the home when the unit is dehumidifying or recirculang
the indoor air. The motorized venlaon damper operates
on 24VAC from the control circuit.
I
CAUTION!
DO NOT connect high voltage to the damper motor or
damage to the motor may 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 direcon only. The damper rotates very
slowly; allow sucient me for the damper to cycle.
The damper opens in one direcon only. It rotates very
slowly; be sure to allow sucient me for the damper to
cycle. The damper will take approximately one minute to
cycle from closed to open or from open to closed.
If the motorized venlaon damper fails to operate:
1. Check that the wiring is correct and that voltage is
present at the damper motor.
2. Check for any obstrucon inside the damper. If the
motorized venlaon damper fails to operate aer
performing these checks, it must be replaced.