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CAUTION
!
CHECK THERMOSTAT OPERATION
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NOTE
To prevent static discharge problems, touch side of ther-
mostat to release static build-up before touching any keys.
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.
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 back-up
heat only.
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.
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).
4
SYSTEM key (HEAT ( ), EMER*, OFF, COOL ( ),
AUTO (
).
* EMER is available when H.P. is selected in the configuration
menu.
The Display
5
Indicates a malfunction with the system.
6
Flame icon ( ) is displayed when the SYSTEM mode is in
HEAT. Flame icon ( ) is displayed flashing when 2nd-stage
heat (Aux or Emergency) is energized. Snowflake icon (
)
is displayed (non-flashing) when the SYSTEM mode is in
COOL. Snowflake and Flame icons are displayed when the
SYSTEM mode is in AUTO. Snowflake and Flame icons
are displayed (flashing) if the thermostat is in lockout mode
to prevent the compressor from cycling too quickly.
7
EMER is displayed flashing when the system switch is in
EMER position.
8
Displays current temperature.
5
CAUTION
!
6
FAN
ON
MODE
SYSTEM
AUTO
STG1+2
EMER