WWW.CLEANCOMFORT.COM
16
OPERATION
IO-DV070
IO-DV070
i
WARNING!
ELECTRICAL SHOCK HAZARD: Electrical power must be
present to perform some tests. These tests should be
performed by a qualified service person.
Remote Controls
The DV070 dehumidifier is controlled by digital controls
that are remote from the unit. You may or may not have
the devices listed below depending on the model of the
control you purchased. If the dehumidifier fails to oper-
ate as desired, always check the settings of the controls
to insure that they are correct. Check that the controls
are receiving 24VAC from the dehumidifier. Check the
connections between the dehumidifier, the control,
and the field control wiring.
Humidity Control
The humidity control is an adjustable switch that closes
when the relative humidity of the air in which it is
located rises to the screen set point. The Clean Comfort
DV Series dehumidifier is equipped with an automatic
defrost mechanism. If the dehumidifier operates in
conditions that develop frost on the evaporator, it will
sense the frost build-up and automatically defrost the
evaporator. The dehumidifier may not appear to be
operating 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 ventilation timer controls the impeller fan and the
motorized fresh air damper. When the ventilation timer
is activated, the dehumidifier will circulate the indoor
air, and bring in fresh air from outside. The ventilation
timer should be set for the required ventilation of the
residence. The home should be ventilated with fresh air
as suggested by applicable codes and standards. If the
dehumidifier fails to ventilate as expected, check that the
time on the timer is correct. Also check the programs on
the timer to be sure that the timer is calling for ventila-
tion at the correct times.
i
WARNING!
ELECTRICAL SHOCK HAZARD: Electrical power must be
present to perform some tests. These tests should be
performed by a qualified service person.
Unit Test to Determine Problem:
1. Detach field control wiring connections from
main unit.
2. Connect the 24V and fan terminals from the main unit
together; only the fan should run. Disconnect
the terminals.
3. Connect the 24V and DEHU terminals from the main
unit together or turn the built-in dehumidistat all
the way clockwise to the "ON" position; the
compressor and fan should run.
4. If these tests work, the main unit is working properly.
You should check the digital control panel and field
control wiring for problems next.
5. Remove the digital control panel from the mounting
box and detach it from the field installed control
wiring. Connect the blue, yellow, and green wires
from the control panel directly to the corresponding
DEHU, 24V, and fan terminals on the main unit. Leave
the COM and DMPR terminals disconnected!
6. Engage the fan switch on the control; the fan
should run. Turn off the fan switch.
7. Engage the dehumidistat of the control; the
compressor and fan should run.
8. If these tests work, the problem is most likely in
the field control wiring.
NOTE: Refrigeration systems should ONLY
be serviced by a qualified service technician.
If you need additional information, consult
Technical Support at 1-855-239-2665.
Refrigerant Charging
If the refrigerant charge is lost due to service or a leak,
a new charge must be accurately weighed in. If any
of the old charge is left in the system, it must be
recovered before weighing in the new charge. Refer to
the unit nameplate for the correct charge weight and
refrigerant type.