Aprilaire 8620 Thermostat User Manual


 
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SETUP & TESTING
Ventilation System Settings Table (continued)
System setting Description
Factory default setting (bold)
and setting range
Number of Bedrooms Selects the number of bedrooms to be used for the ASHRAE
calculation. (Only available if fresh air setup is set to ASHRAE.)
3 Bedrooms
1 to 6 Bedrooms
Number of Occupants Selects the number of occupants to be used for the ASHRAE
calculation. (Only available if fresh air setup is set to ASHRAE.)
4 Occupants
1 to 10 Occupants
Home Size Selects the home size to be used for the ASHRAE calculation.
(Only available if fresh air setup is set to ASHRAE.)
2500 SQ FT
1000 to 5000 SQ FT
Fresh Air CFM Selects the ventilation CFM to be used for the ASHRAE
calculation. (Only available if fresh air setup is set to ASHRAE.)
60 CFM
30 to 200 CFM
Select Climate Selects the climate to be used for the ASHRAE calculation.
(Only available if fresh air setup is set to ASHRAE.) To
determine what region you are in, refer to the map below.
Normal
Very Hot/Humid
Very Cold
ASHRAE Cycle Time Displays the Fresh Air Time calculated by the ASHRAE
standard. (Only displayed if fresh air setup is set to ASHRAE.)
Minutes/Hour
Note: In ASHRAE set-up temperature and humidity limits are disabled.
Note: Refer to manuals for humidifier, dehumidifier, air cleaner and ventilation products for recommended
installation and operation.
CLIMATE MAP FOR ASHRAE FRESH AIR SETUP
VERY HOT/HUMID
VERY COLD
SETUP & TESTING
REMOVAL OF INDOOR AIR QUALITY CONTROL BUTTONS
Step 1: Verify the specific Indoor Air
Quality control feature is not
installed in the installer set-up
(see pages 10-12).
Step 2: From the home screen (see
page 17), press and hold the
IAQ button for 7 seconds.
Step 3: The message center will
display REMOVE BUTTON and
the options of NO and YES
(NO will be flashing).
Step 4: Press
or to select YES.
Step 5: Press [DONE].
Step 6: The button is now removed.
Note: Once the button is removed it can be brought back by installing the corresponding Indoor Air Quality feature
(see pages 10-12).
If any of the Indoor Air Quality control features are not installed, the corresponding button can be removed using the
following procedure:
INDOOR
AIR QUALITY
CONTROL
BUTTONS
SYSTEM TEST MENU
The system test menu is used to test a system after installation. The outputs of the thermostat can be manually
activated to test their function. The instructions below show how to enter the test mode and turn outputs on and off.
SYSTEM TEST STEPS
Heating equipment test
Cooling equipment test
Fan equipment test
Humidification equipment test
Dehumidification equipment test
Ventilation equipment test
HOW TO ENTER THE SYSTEM TEST MENU:
Press [MODE] to set system to off.
Press and hold [FAN] and [MODE] for three seconds
to enter system test mode.
The first screen of the installer test displays the
equipment configuration.
Press [NEXT] to enter the first installation test or
[CANCEL] to exit.
TEMPERATURE
HUMIDITY
OUTDOOR
TEMPERATURE
EQUIPMENT
CONFIGURATION