10
Frost Control
Occasionally, frost will accumulate on the coil in
the unit. This is not abnormal and may result from
prolonged operation or if the conditioned space is
relatively cool. If allowed to go unchecked, ice will
eventually cover the coil, blocking air flow and
interrupting proper operation of the unit. To
prevent frost build-up beyond an acceptable level,
a sensor mounted on the coil will stop com-
pressor operation if the coil becomes unaccept-
ably cold and remains there for at least 10
minutes. The fan will continue to operate to melt
any accumulated ice. Once the ice has melted
and the coil is warm, the compressor will restart
and the dehumidification process will resume.
INITIAL SET UP
FILTER
The dehumidifier unit is equipped with a
permanent nylon mesh air filter. This filter is
washable and should be cleaned regularly, along
with the air conditioner filter replacement. If it
appears that the filter has become excessively
dirty when cleaned at this interval, it may be
necessary to adjust the cleaning schedule to
more frequent cleaning. Excess dirt on the filter
will reduce the air that can flow through it and
reduce the overall effectiveness of the
dehumidifier.
The unit Wiring Diagram is shown on page 11
and the Troubleshooting Guide is on page 12.
Insure that power to the dehumidifier unit is
turned on. For unit control, adjust the set point
knob to approximately 60% RH. For wall control,
adjust the unit mounted control to its minimum
(lowest RH) setting and set the wall mounted
dehumidistat to a desired level. It is
recommended that it be set at approximately 60%
at first and then adjusted no sooner than 24 hours
later to a higher or lower set point as desired. It is
recommended that all adjustments be made in no
more than 3% increments at no less than 24 hour
intervals.
Depending upon the conditions, the dehumidifier
may operate for extended periods, especially
when first started or after having been off. This is
not abnormal and something for which the
dehumidifier is designed.
MAINTENANCE
H
Filter Replacement
