User Guide

SETTING THE DESIRED HUMIDITY LEVEL
ON/OFF
SWITCH
ON
OFF
FIGURE 4 – On/off Switch
FIGURE 5
FIGURE 6
90-1908
90-1853
90-1853
1. Plug in dehumidifier and turn on/off switch ON. See Figure 4.
2. Press the ON/OFF button to turn the dehumidifier control ON. The display will show the
current setting, and the dehumidifier blower will turn on to start sampling the air.
3. The UP and DOWN arrow buttons allow the humidity level to be set from 40% to 80%
relative humidity. Use the ON/OFF button to turn the dehumidifier ON or OFF.
Set the control at 55%RH when first installed. Allow the dehumidifier to run until it
reaches the setting before deciding if you want to change the setting. See Figure 5.
• If you prefer the air to be more dry, decrease the humidity setting.
• If you prefer the air to be less dry, increase the humidity setting.
4. After three (3) minutes of sampling, the measured humidity will be compared to the
setting:
a. If the humidity is above the setting, the dehumidifier compressor turns on and “AIR
SAMPLING” will be replaced by “DEHUMIDIFYING”. The compressor remains on until
the measured humidity falls 3% RH below the setting. See Figure 6.
b. If the measured humidity is below the setting, the blowers turn off and the display
returns to showing the RH setting.
5. The dehumidifier will sample again every 60 minutes, or at any time if the humidity
setting is lowered.
Your comfort is the best measure of how to adjust your setting. When first installed, your
dehumidifier has to remove all the moisture that is initially in your home. The home acts like
a sponge so the moisture in the materials of your home is at the same level as the air. After
drying the air, the materials of the home will release moisture back into the air until they are
again at the same level. As a result, it is not uncommon for the dehumidifier to operate for
an extended period when first installed.
Your dehumidifier is equipped with two features that protect against unwanted energy
consumption. Defrost is a normal operating mode that helps to prevent significant
ice formation on the refrigeration system coil. The dehumidifier display will show
“DEFROSTING” when operating in this mode. This mode can occur when there is not
enough air moving through the dehumidifier or if the temperature and/or humidity of the
incoming air is too low. The second protection feature is the E8 code. E8 on the dehumidifier
display indicates that the air entering the dehumidifier is below 50°F or above 104°F, or
the dew point of the incoming air is below 40°F. There would be a significant reduction in
dehumidifier efficiency if the dehumidifier operated outside of these conditions. Low dew
point conditions can be seen in some basements or crawl spaces and usually occur in the
Winter and Spring months. The dehumidifier continues to monitor the incoming air and
when the conditions are within the operating range, E8 will be removed from the display
and dehumidification will begin as needed.
ENERGY SAVINGS TIPS
Energy Savings Tip #1: Adjust the humidity setting to be as high as is comfortable to
reduce dehumidifier run time. If it feels clammy or “smells musty”, lower the humidity
setting. To save energy, turn the dehumidifier to OFF when you open your windows, just
as you would with air conditioning.
Energy Savings Tip #2: If vacating your home for an extended period in the summer,
set the RH at 55% and set your thermostat as high as you are comfortable setting it
to in the cooling mode. Consult with appropriate professionals regarding the highest
temperature that is safe for your pets or possessions. This will keep the humidity at a
controlled level while minimizing the amount of cooling energy used.
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