5 CHECK THERMOSTAT OPERATION
NOTE
To prevent static discharge problems, touch side of ther- mostat to release static
If at any time during testing your system does not operate properly, contact a qualified serviceperson.
Fan Operation
If your system does not have a G terminal connection, skip to Heating System.
1.Turn on power to the system.
2.Move fan switch to ON position. The blower should begin to operate.
3.Move fan switch to AUTO position. The blower should stop immediately.
!CAUTION
Do not allow the compressor to run unless the compres- sor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes.
Heating System
1.Press SYSTEM key to select the Flame icon (
). 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 heat pump system should begin to operate. However, if the Flame icon (
) and Snowflake icon (
) are flashing, the compressor lockout feature is operating (see Configuration menu, item 3.)
3.Adjust temperature setting to 4° above room temperature. The auxiliary heat system should begin to operate and the Flame icon (
) will be flashing.
4.Press 
to adjust thermostat setting below room tempera- ture. The heating system should stop operating.
Emergency System
EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat. EMER is typically used when compressor operation is not desired, or you prefer
1.Press SYSTEM key to select EMER. EMER will flash on the display.
2.Press 
to adjust thermostat setting above room tempera- ture. 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.
!CAUTION
To prevent compressor and/or property damage, if the outdoor temperature is below 50°F, DO NOT operate the cooling system
Cooling System
1.Press SYSTEM key to select the Snowflake icon (
).
2.Press 
to adjust thermostat setting below room tempera- ture. The blower should come on immediately on high speed, followed by cold air circulation.
3.Press 
to adjust temperature setting above room tem- perature. The cooling system should stop operating.
Before you begin configuring your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base.
The Thermostat Buttons and Switches
1(Up arrow) Raises temperature setting.
2(Down arrow) Lowers temperature setting.
3 FAN switch (ON, AUTO).
4SYSTEM key (HEAT (
), EMER*, OFF, COOL (
), AUTO (
).
*EMER is available when H.P. is selected in the configuration menu.
The Display
5Indicates a malfunction with the system.
6Flame icon (
) is displayed when the SYSTEM mode is in HEAT. Flame icon (
) is displayed flashing when 
) is displayed
7EMER is displayed flashing when the system switch is in EMER position.
8Displays current temperature.
SYSTEMFAN
MODE | ON AUTO |
EMER
STG1+2
6
