Aprilaire 8820 Owner's Manual page 7

INDOOR AIR QUALITY FUNCTIONS
EVENT-BASED ™ AIR CLEANING
(CONTINUED)
Air Cleaning Screen
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INDOOR AIR QUALITY FUNCTIONS
HUMIDITY CONTROL
Press [HUMIDITY CONTROL] on the Home screen to
enter the Humidity Control screen .
AIR CLEANING MODE
SELECTION
AIR CLEANING MODE
ADJUSTMENT
The Humidity Control screen is used to access control for
both humidification and dehumidification .
If humidification is installed it can be controlled in two
modes, automatic or manual .
CANCEL BUTTON
Automatic or manual mode is configured by the installer .
(EXIT AIR CLEANING)
To determine which mode the thermostat is set to, see
the diagrams on pages 14 and 16 .
DONE BUTTON (SAVE MODE
AND EXIT AIR CLEANING)
In automatic mode you will receive the optimum
amount of humidity so that your home and its
furnishings are protected from the damaging effects
of excess condensation or low humidity during
heating season . The thermostat automatically adjusts
your home's Relative Humidity based on the outdoor
temperature .
The humidity setting needs to be set initially to
meet your home's conditions. Please follow these
steps when adjusting your thermostat .
1 . Adjust the humidity setting to "3" which is within
normal range . During the next 24-48 hours it may
be necessary to adjust the setting for more or less
humidity, depending on your personal comfort and
home's requirements .
2 . During the coldest portion of the first heating
season, minor adjustments may be necessary . This is
dependent upon your home's construction .
The relative humidity in your home will now be
accurately controlled to meet your needs and should not
need further adjustment during future heating seasons .
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