Check Thermostat Operation, Fan Operation

INSTALLER/CONFIGURATION MENU

5)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.

6)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.

7)Select F° or C° Readout - Changes the display readout to Celsius or Fahrenheit as required.

8)Select Fast Second Stage ON or OFF - (Heat Pump Only) In the HEAT mode, with the Fast Heat feature enabled (FH Heat On), if the temperature is manually raised by 3°F (2°C)

or more above the actual temperature using the , the second stage will energize immediately. With FH OFF, the thermostat will determine the optimum time (approximately 0 to 30 minutes) to use Auxiliary/Second stage heat in addition to the Heat Pump.

9)Select Filter Replacement Reminder and Set Run Time Select the “Change Filter” reminder On or OFF. If selected

On, press and 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 and 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 Flame icon () will begin to flash and the Heat Pump system should begin to operate. However, if the setpoint temperature is flashing, the compressor lockout feature is operating (see Configuration menu, item 6).

3.Adjust temperature setting to 4o above room temperature. The auxiliary heat system should begin to operate and the Aux icon will be flashing.

4.Press to adjust temperature setting below room temperature. The heating system should stop operating.

Emergency System

EMER bypasses the Heat Pump to use the heat source wired to terminal W2 on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer back-up heat only.

1.Move SYSTEM switch to EMER position, EMER will flash on the display.

2.Press to adjust the thermostat above room temperature. The Aux heating system will begin to operate. The Flame icon () will display flashing to indicate that the Aux system is operating.

3.Press to adjust the thermostat below room temperature. The Aux 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.

3.Press to adjust temperature setting above room temperature. The cooling system should stop operating.