Install Instructions
12 13
System setting Description
Factory default setting (bold)
and setting range
21. Auto Changeover Time Minimum time between heating and cooling
calls.
4 minutes
1 to 5 minutes
22. First Stage Differential First stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
23. Second Stage Differential Second stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
24. Third Stage Differential Third stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
25. Fourth Stage Differential Fourth stage differential. 1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
26. Away Enables the Away feature. The Away feature
allows the user to set the thermostat to a
predefined setpoint(s) using a single button
press in the Aprilaire mobile and web apps. The
predefined setpoint(s) is set by the user in the app.
The thermostat will hold the setpoint(s) until Away
is canceled with the app or at the thermostat.
Disable
Enable
Disable
Enable
3°F (1.5°C)
3°F to 5°F (1.5°C to 2.5°C)
37. Stage Rate Accumulation of equipment run time in
equipment staging determination.
1 = more rapid staging of equipment (comfort).
5 = slower staging of equipment (economy).
2
run time.
38. Progressive Recovery Enable or disable progressive recovery. Disable
Enable
Outdoor temperature low balance point.
Note: This option is only available if the outdoor
sensor is enabled.
20°F or -8°C
0°F to 60°F (-18°C to 12°C) or OFF to
Outdoor temperature high balance point.
Note: This option is only available if the outdoor
sensor is enabled.
65°F or 14.5°C
0°F to 80°F (-18°C to 22°C) or OFF to
41. Program Format Enables the 7 day program. 7-Day
42. Reset Service Reminders Clears the Change Air Filter and HVAC and
Dehumidifier Service reminders if they are active
and resets the start date to the current date.
Clears the Change Water Panel reminder if it is
will be reset.
No
43. HVAC Service Reminder The period for displaying the “HVAC Service
Off
24VAC is present.
Disable
Enable
Set the active backlight intensity.
Note: The minimum setting is 40% when
100 Percent
0 to 100 Percent
SETUP & TESTINGSETUP & TESTING
HVAC INSTALLER SYSTEM SETTINGS TABLE (CONTINUED)
The following table contains the system settings and their details. Default settings are shown in bold. Some settings
are only available dependent upon the value of other settings.
HVAC INSTALLER SYSTEM SETTINGS TABLE
System setting Description
Factory default setting (bold)
and setting range
01. Equipment Type Equipment type set by SW1.
Heat/Cool
Heat Pump
02. Temperature Scale Set the thermostat to Fahrenheit or Celsius
mode.
Fahrenheit
Celsius
04. Control Setup
Note: Only available if Equipment Type is set to
Heat/Cool.
Heat and Cool
Heat Only
Cool Only
05. Heat/Cool: Cooling Stages
Heat Pump: Compressor
Stages
One
Two
Three (only available in Heat/Cool)
06. Heat/Cool: Heating Stages
Stages
One
Two
Three (only available in Heat/Cool)
07. Heat/Cool: Fan Control
in Heating
Equipment Type
Heat/Cool: Determines if the thermostat or
equipment controls the fan in heating.
Gas/Oil Heat (equipment controls fan)
Electric Heat (thermostat controls fan)
Disable
Disable
10. Temperature Sensor Offset Field adjustment of controlling temperature
sensor(s).
0° (no offset applied)
-4°F to +4°F (-2°C to +2°C)
11. Humidity Offset Field adjustment of internal RH sensor. 0 (no offset applied)
-5% to +5%
12. Auto Changeover Enable or disable auto changeover mode.
Disable
Enable
13. Deadband Auto Changeover mode deadband.
3°F (1.5°C)
2°F to 9°F (1°C to 4.5°C)
14. Remote Sensor
with the built-in sensor. If the remote sensor is
the primary control it can be configured to use
the built-in sensor as a back-up sensor.
Not installed
Control no backup
Control with built-in backup
Average with thermostat built-in sensor
15. Outdoor Sensor Select if outdoor sensor is attached or not.
Not installed
Installed
17. Return Sensor Select if return sensor is attached or not.
No
18. Compressor Min Off Time Minimum off time for compressor protection.
5 minutes
1 to 5 minutes
19. Heating Min Off Time Minimum off time for heating.
2 minutes
1 to 5 minutes
20. Equipment Min On Time Minimum on time for heating and cooling.
2 minutes
1 to 5 minutes