INSTALLER/CONFIGURATION MENU
lockout feature is already present in their system. When the thermostat compressor time delay occurs, it will flash the setpoint for up to five minutes.
7)Select Backlight Display - The display backlight improves display contrast in low lighting conditions. When the “C” terminal is connected, selecting backlight CdL On will keep the light on continuously. Select backlight OFF will turn the light on momentarily when any key is pressed. When the “C” terminal is not connected, regardless of the backlight selection, the light will be on momentarily when any key is pressed.
8)Select Temperature Display Adjustment 4 LO to 4 HI -
Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat. The current or adjusted room temperature will be displayed on the display.
9)Select F° or C° Readout - Changes the display readout to Celsius or Fahrenheit as required.
10)Select Filter Replacement Reminder and Set Run Time
Select the “Change Filter” reminder On or OFF. If selected
On, press RUN/HOLD to select the time period from 25 to 1975 hours in 25 hour increments. In a typical application, 200 hours (default) of run time is approximately 30 days.
After the selected time of blower operation, the thermostat will display “Change Filter” as a reminder to change or clean your air filter. When “Change Filter” is displayed, press the RUN/HOLD button to clear the display and restart the time to the next filter change. A selection of OFF will cancel this feature.
OPERATION
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate properly, contact a qualified service person.
Turn on power to the system.
Fan Operation
If your system does not have a G terminal connection, skip to Heating System.
1.Move fan switch to ON position. The blower should begin to operate.
2.Move fan switch to AUTO position. The blower should stop immediately.
Heating System
1.Move SYSTEM switch to HEAT position. If the auxiliary heating system has a standing pilot, be sure to light it.
2.Press 
to adjust thermostat setting to 1° above room temperature. The system should begin to operate.
3.Press 
to adjust temperature setting below room temperature. The heating system should stop operating.
Cooling System
!CAUTION
To prevent compressor and/or property damage, if the outdoor temperature is below 50oF, DO NOT operate the cooling system.
1.Move SYSTEM switch to COOL position.
2.Press 
to adjust thermostat setting below room temperature. The blower should come on immediately on high speed, followed by cold air circulation. However, if the setpoint temperature is flashing, the compressor lockout feature is operating (see Configuration menu, item 6).
3.Press 
to adjust temperature setting above room temperature. The cooling system should stop operating.
!CAUTION
Do not allow the compressor to run unless the compressor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes.
MANUAL OPERATION
•HOLD TEMPERATURE — With the SYSTEM switch set to HEAT or COOL, momentarily press RUN/HOLD button.
HOLD will be displayed. Use 
or 
to adjust the temperature.The thermostat will hold the room temperature at the selected setting until you press RUN/HOLD button to start program operation again.
•TEMPERATURE OVERRIDE (TEMPORARY HOLD) — Press
or 
until the temperature you want is displayed. The thermostat will override current programming and keep the room temperature at the selected temperature for 2 hours or until the next program period begins. Then the thermostat will automatically revert to the program.
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