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EXTERNAL CONTROL OPTIONS
Your Aprilaire dehumidifier can be controlled with an optional external control that is conveniently located in the living space. The Aprilaire
Model 76, 8620, and 8910 are recommended controls. The Model 76 is a dedicated dehumidifier control and the 8620 and 8910 integrate
dehumidification control as part of the thermostat minimizing the number of controls on the wall.
The Model 76 can also act as a remote control if the dehumidifier is located in a crawl space. Install the Model 76 in your living space and make
changes to the dehumidifier setting or find out what the humidity level is in the crawl space from the comfort and convenience of the living space.
If one of these controls or any other external control is installed, please refer to their owner’s manuals for operating instructions. Aprilaire owner’s
manuals are available at www.aprilaire.com.
If you are interested in having an external control installed, please consult your installing contractor.
HOW DOES THE OPTIONAL VENTILATION WORK?
If you had your contractor install the optional ventilation feature, they calculated how much fresh air was needed based on various factors
(i.e. home size, number of occupants, local building codes, etc.). Knowing how much is needed and the rate at which fresh air will be brought
into your home, the contractor set up the dehumidifier control to operate ventilation a certain amount of time per hour to provide the needed
fresh air. When ventilation operates, a damper in a duct that brings air in from the outside opens, and
your heating and cooling system blower will run to distribute the fresh air.
If you need to change the amount of time to operate ventilation, press the MODE button twice to
display the ventilation time setting. Use the UP or DOWN button to adjust the number of minutes
per hour (0–60, set to zero to turn it off) that ventilation is to run. The control will return to the
dehumidifier setting display automatically.
For additional information, go to www.aprilaire.com to find out more about the benefits of home ventilation.
Model 76 Control Model8620ThermostatorModel8910*HomeComfortControl
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8620MainDisplayScreen 8620HumidityControlScreen
* Model 8910 consists of the 8620 thermostat
and equipment control module to accommodate
the installation of various components.
MAINTENANCE
CLEAN OR REPLACE THE AIR FILTER
After initial installation the air filter should be checked and
cleaned every 6 months. The CLEAN FILTER service reminder
will display on the on-board control screen every 6 months.
To clear the service message, press the UP and DOWN
arrows simultaneously for 3 seconds.
Filter Cleaning Procedure
1. Turn the ON/OFF switch OFF.
2. Remove the filter access door from either side of the dehumidifier.
3. Slide the filter out of the dehumidifier.
4. Flush the filter with warm water and a mild detergent solution.
5. Shake off the excess water from the filter.
6. Replace the filter, making sure the filter is secured in both the top and
bottom filter rails.
7. Replace the filter access door.
8. Turn the ON/OFF switch ON.
9. Press the UP and DOWN buttons simultaneously for 3 seconds to clear
the service message.
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