7. oPeraTion
7.1 Fan Control
“UNIT OFF” means no power is supplied to
the unit. It will not operate.
“Fan runs all the time to circulate air”
means fan runs always,
compressor runs only as required to maintain humidity set point.
This function is desirable if the unit is used for air circulation or
filtration.
“Fan only runs when dehumidifier is on”
(Recommended
setting) means the fan and compressor run together as required
to maintain humidity set point. Once humidity set point is reached
the whole unit will shut off until the relative humidity rises and
further dehumidification is needed.
7.2 Humidity Control adjustment
The humidity control
allows the humidity setting to be adjusted to obtain the required
humidity level. The humidity control tells the dehumidifier when
to dehumidify. Dehumidification will take place when the relative
humidity (RH) of the air in which the dehumidifier is located rises
5% RH above the dial set point. Dehumidification will stop when
the RH drops 5% below the set point.
approximate Humidity levels Per setting
“drier”
35% to 45% Relative Humidity
“normal”
45% to 55% Relative Humidity(Recommended for most
applications)
“Humid”
55% to 65% Relative Humidity
The dehumidifier will run continuously until the relative humidity
(RH) is reduced to the humidity control dial setting. There is
no benefit to setting the humidity control to “drier” in rooms
under 65°F; doing so will result in long periods of ineffective
dehumidifier run time.
Once the dial has been set to the desired level of humidity control,
the unit will maintain the same percentage of relative humidity
regardless of room temperature within 3-5% RH.
To turn the unit off, you can set the “Fan Control” to “UNIT OFF”,
or you can position the humidity control to the far left and set fan
control to “Fan only runs when dehumidifier is on”.
CAUTION!
When the compressor stops running for any reason it will not
restart for 3 minutes. When it starts, it will run for a minimum
of 5 minutes regardless of the % rH setting.
8 deFrosT CyCle
An automatic defrost temperature sensor is attached to the
refrigerant tubes inside the unit. It will automatically shut the
compressor off if excessive frost forms on the evaporator coil.
The blower will continue to run, causing air to flow through the
evaporator coil and melt the ice. When the ice has melted, the
evaporator temperature will rise and the defrost temperature
sensor will automatically restart the compressor. During the
defrost cycle process, the compressor will not be running and cool
air may be coming out of the unit.
9. MainTenanCe
CAUTION!
noTe: do not operate the unit without the proper filter or
with a less effective filter. The heat exchange coils inside the
unit could become clogged, resulting in premature failure
of refrigeration components, a loss of effectiveness and/or
efficiency, which may require total disassembly to clean.
9.1 air Filter
The SaniDry CX ships with a standard MERV-11
65% 1” pleated fabric filter and a 1/4” aluminum framed pre-filter
installed. Operating the unit with a dirty or obstructed filter will
reduce dehumidifier capacity and efficiency and may cause the
compressor to cycle on and off unnecessarily.
9.2 Filter Cleaning & replaCement
Check filters every
six months or more frequently depending on room conditions.
Clean and/or replace when filters are visibly dirty. See cleaning
instructions below. For replacement filters, call your local
Basement Systems dealer.
Figure 11:
Pre-filter
rinsed in Water, mesh
side up
The 1/4” washable
pre-filter should not be
discarded.
Inspect the pre-filter for
debris, dirt, or other obstructions at the same time the 1” pleated
fabric filter is checked. Wash the 1/4” pre-filter every time the
1” pleated fabric filter is replaced. To clean the 1/4” pre-filter,
remove filter from the unit, ref. section 9.3, rinse the 1/4”pre-
filter in water with the water flowing through the aluminum
support mesh side. Refer to Figure 11. Allow the pre-filter to
dry completely before reinstalling. Reinstall the filters per the
instructions in section 9.4 Installing Filters.
CAUTION!
noTe: Failure to follow filter installation instructions may
result in improper function of the dehumidifier and cause
premature component failure.
SaniDry CX INSTALLER'S AND OWNER'S MANUAL
5
SaniDry CX Installer’s & Owner’s Manual
Figure 9:
dial shown in recommended position
