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SETUP & TESTINGSETUP & TESTING
The following tables contain the Indoor Air Quality system settings and their details. Default settings are shown in
bold. Some settings are only present dependent upon the value of other settings.
The use of an outdoor temperature sensor (recommended) enables additional Indoor Air Quality functionality. If the
will be presented prior to entering the Indoor Air Quality system settings.
Please refer to the Model 8910 Owner’s Manual for further information about Home Comfort Control features.
Air Cleaning System Settings Table
System setting Description
Factory default setting (bold)
and setting range
Air Cleaner Installed
air cleaning settings will be available.)
No
Yes
Change Air Filter Reminder
Off
Humidifier System Settings Table
System setting Description
Factory default setting (bold)
and setting range
Humidifier Installed
humidifier settings will be available.)
No
Yes
Humidity Setpoint
Deadband
Select the minimum difference between the humidifier and
dehumidifier setpoints. (Only available if both a humidifier
and dehumidifier are installed. Available in both set-ups.)
10 Percent RH
10 to 20 Percent RH
Humidifier Mode Selects auto or manual mode. Auto mode controls humidity
based on the humidity setting and outdoor temperature.
Manual mode controls humidity based on the %RH setpoint.
(Auto mode is only available if outdoor sensor is set to yes.)
Auto
Manual
Humidifier Operation Selects when humidification is allowed to occur relative to
heating and fan operation.
Heat Only
Heat or Fan
Forces Fan
Change Water Panel
Reminder
displayed.
Off
1 Per Season
2 Per Season
300 Hours
600 Hours
Reminder Month (Change
Water Panel Reminder set
to 1 per Season)
First Reminder Month
(Change Water Panel
Reminder set to 2 per
Season)
Change Water Panel Reminder set to 1 per Season:
is displayed.
Change Water Panel Reminder set to 2 per Season:
message is displayed.
October
December
January
February
March
April
May
June
July
August
September
Second Reminder Start
Month
message is displayed. (Only available when Change Water
Panel Reminder set to 2 per Season.)
October
December
January
February
March
April
May
June
July
August
September
INDOOR AIR QUALITY SYSTEM SETTINGS TABLES
Dehumidifier System Settings Table
System setting Description
Factory default setting (bold)
and setting range
Dehumidifier Control
other dehumidifier settings will be available.)
None (no dehumidification installed)
Whole Home
Air Conditioner
Humidity Setpoint Deadband Select the minimum difference between the humidifier
and dehumidifier setpoints. (Only available if both a
humidifier and dehumidifier are installed. Available in
both set-ups.)
10 Percent RH
10 to 20 Percent RH
Lockout Dehumidifier During
Cooling
Selects if dehumidification is disabled during a cooling
call.
Yes
Dehumidifier Forces Fan Select if dehumidification can turn on the fan.
Yes
Dehumidifier Service
Reminder
The period for displaying the “Dehum Service
Off
Dehumidifier Overcooling
Limit
Selects the amount of overcooling that can occur for
dehumidification. (Only available if dehum control is
set to air conditioner.)
3°F (1.5°C)
1°F to 3°F (0.5°C to 1.5°C)
Dehumidify in Vacation
Mode
Selects if dehumidification with the air conditioner
is done in Vacation Mode. (Only available if dehum
control is set to air conditioner.
No
Yes
Vacation Dehumidifier Low
Temp Limit
Sets the lowest temperature the air conditioner will
cool to meet RH setpoint in Vacation Mode. (Only
available if dehum control is set to air conditioner.)
75°F (24°C)
70°F to 85°F (21°C to 29°C)
Note:
installation and operation.
Ventilation System Settings Table
System setting Description
Factory default setting (bold)
and setting range
Fresh Air Vent Installed Selects if ventilation is installed.
No
Yes
Fresh Air Forces Fan Selects if ventilation forces the fan on.
Yes
Fresh Air Setup Selects if ventilation is configured through the ASHRAE setup
time will be calculated using the ASHRAE recommendations.
determined based on the Fresh Air Time value.
Timed
ASHRAE
Fresh Air Time Selects how many minutes per hour that ventilation will be
active. (Only available if fresh air setup is set to timed.)
30 MIN/HR
High Limit Outdoor
Temp
Selects if ventilation is disabled if the outdoor temperature
is set to timed and an outdoor temperature sensor is installed.)
No
Yes
Outdoor High Limit Sets the high temperature limit for ventilation. (Only available if
high limit outdoor temp set to yes.)
100°F (38°C)
90°F to 100°F (32°C to 44°C)
Low Limit Outdoor Temp Selects if ventilation is disabled if the outdoor temperature
is set to timed and an outdoor temperature sensor is installed.)
No
Yes
Outdoor Low Limit Sets the low temperature limit for ventilation. (Only available if
low limit outdoor temp set to yes.)
10°F (-7°C)
-10°F to 30°F (-29°C to -1°C)
High Limit Indoor RH
the indoor RH limit. (Only available if fresh air setup is set to
timed.)
No
Yes
Indoor RH Limit Sets the high indoor RH limit for ventilation. (Only available if
high limit indoor RH is set to yes.)
60%
50% to 70%
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