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System setting Description
Factory default setting (bold)
and setting range
19. Fourth Stage Differential 4th stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
20. Heat Blast Enables the Heat Blast feature.
Disable
Enable
21. Blast Offset Amount of heating when Heat Blast is initiated.
3°F (2°C)
3°F to 5°F (2°C to 3°C)
22. Screen Lockout Screen lockout level. (Override lockout by holding
[MENU] for 7 seconds.)
Off
Part
Full
23. Partial Lockout Type Select lockout type. (Only available when screen
lockout is set to partial.)
Fan/Mode/Setpt
Fan/Setpoints
Setpoints Only
24. Max Temp Setpoint
Change In Lockout
Select temperature setpoint limits. (Only available
when screen lockout is set to partial.)
3 degrees
0 to 20 degrees
41. Max Dehum Setpoint
Change In Lockout
Select dehumidification setpoint limits. (Only
available when screen lockout is set to partial.)
5 Percent RH
0 to 15 Percent RH
25. 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
1 to 5 or “OFF” to ignore accumulated
run time.
27. Progressive Recovery Enable or disable progressive recovery. Disable
Enable
28. Low Balance Point Outdoor temperature low balance point. (This
option is only displayed if the outdoor sensor is
enabled.)
20°F (-6°C)
10°F to 50°F (-12°C to 9°C) or OFF to
ignore
29. High Balance Point Outdoor temperature high balance point. (This
option is only displayed if the outdoor sensor is
enabled.)
65°F (18°C)
40°F to 85°F(3°C to 18°C) or OFF to
ignore
30. Program Format Select weekly program format. 7-Day (Mon, Tue, Wed, Thu, Fri, Sat, Sun)
5/1/1 (weekdays, Saturday and Sunday)
5/2 Weekdays (weekdays and weekends)
Non-Prog
32. Events Per Day Number of program events per day.
Four
Two
33. 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
active. If the reminder is set to timed, the clock
will be reset.
No
Yes
37. HVAC Service Reminder The period for displaying the “HVAC Service
Reminder” message.
Off
1 to 12 months or “Off” to disable
38. Constant Backlight Enable constant, low intensity backlight when
24VAC is present.
Disable
Enable
39. Backlight Intensity Backlight intensity as a percentage of full on. 100 Percent
0 to 100 Percent
40. Auto Daylight Savings Enable or disable auto daylight savings. Off
March (second Sunday in March to the
first Sunday in November)
April (first Sunday in April to the last
Sunday in October)
SETUP & TESTING
HVAC INSTALLER SYSTEM SETTINGS TABLE (CONTINUED)
SETUP & TESTING
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
00. Equipment Type Equipment type set by SW1.
Heat /Cool
Heat Pump
31. Reversing Valve Selects O or B operation. O – On in cooling
B – On in heating
01. Control Setup Used to lockout heating or cooling outputs. (Only
available in Heat/Cool mode.)
Heat and Cool
Heat Only
Cool Only
02. Number of Stages Number of equipment stages.
One
Two
03. Aux Heat Stages Number of auxiliary heat equipment stages.
One
Two
04. Temperature Scale Set the thermostat to Fahrenheit or Celsius mode.
Fahrenheit
Celsius
05. Heat/Cool: Fan Control
in Heating
Heat Pump: Auxiliary
Equipment Type
Heat/Cool: Determines if the thermostat or
equipment controls the fan in heating.
Heat Pump: Auxiliary Equipment type.
Gas/Oil Heat (equipment controls fan)
Electric Heat (thermostat controls fan)
06. Extended Fan – Heat Extends fan operation after heat call ends.
Disable
Enable (90 second extension)
07. Extended Fan – Cool Extends fan operation after cool call ends.
Disable
Enable (90 second extension)
08. Internal Temp Sensor
Offset
Field adjustment of internal temperature sensor. 0° (no offset applied)
-4°F to +4°F (-2°C to +2°C)
35. Internal RH Sensor Offset Field adjustment of internal RH sensor. 0 (no offset applied)
-5% to +5%
09. Auto Changeover Enable or disable auto changeover mode.
Disable
Enable
26. Deadband Auto Changeover mode deadband.
3°F (2°C)
2°F to 9°F (1°C to 5°C)
10. Remote Sensor Select if remote sensor is attached.
No
Yes
11. Outdoor Sensor Select if outdoor sensor is attached or not.
No
Yes
12. Compressor Min Off Time Minimum off time for compressor protection.
5 minutes
1 to 5 minutes
13. Heating Min Off Time Minimum off time for heating.
2 minutes
1 to 5 minutes
14. Equipment Min On Time Minimum on time for heating and cooling.
2 minutes
1 to 5 minutes
15. Auto Changeover Time Minimum time between heating and cooling calls.
4 minutes
1 to 5 minutes
16. First Stage Differential 1st stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
17. Second Stage Differential 2nd stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
18. Third Stage Differential 3rd stage differential.
1°F (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)