Trane XR103 Non-Programmable Thermostat
Pub. No. 18HD55D1-1C-EN 09/2020
Part No. 37-7790003
9
6. OPERATING FEATURES
NOTE
To prevent static discharge problems, touch side of
thermostat 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.
6.1 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 compressor
oil heaters have been operational for 6 hours and the system
has not been operational for at least 5 minutes.
6.2 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 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
temperature. The heating system should stop operating.
6.3 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.
Move SYSTEM switch to EMER position. EMER will flash on
the display.
2.
Press
to adjust thermostat setting 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.
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 55°F, DO NOT operate the
cooling system
6.4 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.
6.5 Configuration Menu
The configuration menu allows you to set certain thermostat
operating characteristics to your system or personal requirements.
To enter the configuration menu, with SYSTEM switch in OFF
position, hold
and
for at least two seconds. To exit the
configuration menu, move the SYSTEM switch from the OFF
position.
1
Step
Press Button(s)
Displayed
Press or
(Factory Default)
to select:
2
OFF
4
Configuration Menu
3
CL
(ON)
3 LO TO
3 HI
Set SYSTEM
switch to OFF
6
Move SYSTEM
switch from OFF
FA
(ON)
and
for at least 2 seconds
and
momentarily
and
momentarily
OFF
0 HI
(0)
5*
OFF
and
momentarily
dL
(ON)
* Not available on earlier models
Return to normal operation
2.
In the run mode, if the setpoint temperature is manually
raised by 3°F (2°C) or more above the actual temperature
with the
TEMPERATURE UP
key, and the fast second stage
feature is enabled, FA on, the second stage will energize
immediately. With FA off, second stage will not energize
until the setpoint temperature is 1°F or more above actual
temperature for more than ten minutes.
3. Select Compressor Lockout CL OFF or ON
– Selecting CL
ON will cause the thermostat to wait 5 minutes before turning
on the compressor if the heating and cooling system loses
power. It will also wait 5 minutes minimum between cooling
and heating cycles. This is intended to help protect the
compressor from short cycling. Some newer compressors
already have a time delay built in and do not require this
feature. Your compressor manufacturer can tell you if the
lockout feature is already present in their system. When the
thermostat compressor time delay occurs it will flash the
Snowflake
and
Flame Icons
for about five minutes.
4. Select Temperature Display Adjustment 3 LO to 3 HI
–
Allows you to adjust the room temperature display up to 3°
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 left side
of the display.
5. Select Backlit Display
– (Not available on earlier models)
The display backlight improves display contrast in low lighting
conditions. Selecting backlight ON will keep the light on
continuously. Selecting Backlight OFF will keep the light off.
