4
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 Heat Pump system should begin to oper
-
ate. However, if the
Flame icon ( ) and Snowflake icon ( )
are flashing, the compressor lockout feature is operating.
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 temperature setting below room tem-
perature. 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.
INSTALLER/CONFIGURATION MENU
Cooling System
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
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.
1. Move SYSTEM switch to
COOL
position.
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.
THERMOSTAT QUICK REFERENCE
2
1
3
4
5
8
10
6
9
5
8
7
Figure 5. Thermostat display, buttons, and switches
SU
MALF
EMER
PM
SA
FILTER
AM
FAN
OFF HEAT
ON AUTO
COOL
EMER
Before you begin using your thermostat, you should be familiar
with its features and with the display and the location and op-
eration of the thermostat buttons. Your thermostat consists of
two parts: the
thermostat cover
and the
base
. To remove the
cover, pull it straight out from the base. To replace the cover,
line up the cover with the base and press until the cover snaps
onto the base.
THE THERMOSTAT BUTTONS AND SWITCHES
(see fig. 5)
1
Raises temperature setting.
2 Lowers temperature setting.
3 FAN switch (ON
,
AUTO).
4 SYSTEM switch (
COOL
,
OFF
,
HEAT
,
EMER).
THE DISPLAY
5
Flame icon ( ) is displayed when the SYSTEM switch is
in the HEAT position.
Flame icon ( ) is displayed flashing
when 2nd-stage heat (Aux or Emergency) is energized.
Snowflake icon ( ) is displayed (non-flashing) when the
SYSTEM switch is in the COOL position.
Snowflake
and
Flame are displayed (flashing) if the thermostat is in lockout
mode to prevent the compressor from cycling too quickly.
6
Indicates a malfunction with the system.
7
Displays current temperature.
8
EMER
is displayed flashing when the system switch is in
EMER position.
9 Displays current set temperature (this is blank when SYS
-
TEM switch is in the OFF position).
10
Displays
FILTER
when the system has run for the programmed
filter time period as a reminder to change or clean.
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.
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