SETUP & TESTING
SETUP & 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
outdoor temperature sensor was not enabled in the HVAC system settings, HVAC system setting 15, Outdoor Sensor,
will be presented prior to entering the Indoor Air Quality system settings .
Please refer to the Model 8910W Owner’s Manual for further information about thermostat features .
Air Cleaning System Settings Table
System setting
Description
Factory default setting (bold)
and setting range
Air Cleaner Installed
Selects if an air cleaner is installed . (If set to No, no other
air cleaning settings will be available .)
No
Yes
Change Air Filter Reminder
The period for displaying the “Change Air Filter” message .
Off
1 to 12 months or “Off” to disable
Humidifier System Settings Table
System setting
Description
Factory default setting (bold)
and setting range
Humidifier Installed
Selects if a humidifier is installed .
Yes/On HVAC
is used
for applications where the humidifier is installed on the
HVAC duct .
Yes/Standalone
is used for application where
the humidifier is independent of the HVAC system . (If set to
no, no other humidifier settings will be available .)
No
Yes/On HVAC
Yes/Standalone
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
Installed .)
Auto
Manual
Humidity Setpoint
Deadband
Selects the minimum difference between the humidifier
and dehumidifier setpoints . (Only available if a humidifier is
installed and dehumidifier control is set to air conditioner .
Available in both set-ups .)
10 Percent RH
10 to 20 Percent RH
Humidifier Operation
Selects when humidification is allowed to occur relative
to heating and fan operation . Without Fan allows
humidification to occur without the HVAC fan . This option
should only be used when the humidifier is independent
of the HVAC system . Note:
Without Fan
is only available
when
Humidifier Installed
is set to
Yes/Standalone
.
Heat Only
Heat or Fan
Forces Fan
Without Fan
CAUTION:
When
Humidifier Operation
is set to
Without Fan
the thermostat will turn on humidification
without energizing the HVAC fan . Do not select this option when the humidifier is installed on the HVAC duct .
Without airflow moisture can accumulate in the duct resulting in significant damage .
Change Water Panel
Reminder
Selects the when the “Change Water Panel” message is
displayed .
Off
1 Per Season
2 Per Season
300 Hours
600 Hours
INDOOR AIR QUALITY SYSTEM SETTINGS TABLES
Dehumidifier System Settings Table
System setting
Description
Factory default setting (bold)
and setting range
Dehumidifier Control
Selects method of dehumidification . (If set to None, no
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 .
No
Yes
Dehumidifier Forces Fan
Select if dehumidification can turn on the fan .
No
Yes
Dehumidifier Service
Reminder
The period for displaying the “Dehum Service
Reminder” message .
Off
1 to 12 months or “Off” to disable
Dehumidifier Overcooling
Limit
Selects the amount of overcooling that can occur
for dehumidification . (Only available if Dehumidifier
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 Dehumidifier
Control is set to Air Conditioner .)
No
Yes
Vacation Dehumidifier Low
Temp Limit
Sets the lowest temperature the air conditioner
will cool to, to meet RH setpoint in Vacation Mode .
(Only available if Dehumidifier Control is set to Air
Conditioner .)
75°F (23.5°C)
70°F to 85°F (21°C to 28 .5°C)
Note:
Refer to manuals for humidifier, dehumidifier, air cleaner, and ventilation products for recommended
installation and operation .
System setting
Description
Factory default setting (bold)
and setting range
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:
Determines the month the “Change Water Panel” message
is displayed .
Change Water Panel Reminder set to 2 Per Season:
Determines the first month the “Change Water Panel”
message is displayed .
October
November
December
January
February
March
April
May
June
July
August
September
Second Reminder Start
Month
Determines the second month the “Change Water Panel”
message is displayed . (Only available when Change Water
Panel Reminder set to 2 Per Season .)
October
November
December
January
February
March
April
May
June
July
August
September
English
15
14
English
