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T8411R ELECTRONIC HEAT PUMP THERMOSTAT
4. Press the ▲ key again to display °C or °F. 1. Slide the SYSTEM switch to Heat and the FAN
switch to Auto.
2. Press and hold the ▲ key to raise the temperature
setting several degrees above the room tempera-
ture. After approximately five minutes, the heating
equipment should start.
3. Press the ▼ key to lower the temperature setting
below the room temperature. Heating equipment
should stop.
Cooling
CAUTION
Do not operate cooling if outdoor temperature is
below 50°F (10°C). Refer to equipment manu-
facturer instructions.
To avoid possible compressor damage, allow
the compressor to remain off for five minutes
before restarting.
1. Slide the SYSTEM switch to Cool and the FAN
switch to Auto.
2. Press the ▼ key to lower the temperature setting
several degrees below the room temperature. After
approximately five minutes, the cooling equipment
and fan should start.
3. Press the ▲ key to raise the temperature setting
above the room temperature. Cooling system should
shut down.
Fan
1. Slide the SYSTEM switch to Off and the FAN switch
to On. The fan should run continuously.
2. Slide the FAN switch to Auto. The system turns the
fan on or off with the equipment.
Make certain all equipment responds properly to the
thermostat.
M11260
M11261
M11259
5. Press the ▼ key to change the °C or °F indication.
NOTE: Stage one heat and cool cycle rates are fixed at
3 cph. Only stage two heat cycle rates are
selectable.
6. Press the ▲ key to display the heat cycle rate of 3,
6, or 9. If the desired cycle is displayed, press the ▲
key to exit the installer setup mode. To change the
heat cycle rate, press the ▼ key to scroll between 3,
6, and 9. Stop scrolling when the desired rate is
displayed.
7. Press the ▲ key to save all changes, exit installer
setup mode and return to normal control.
NOTE: After exiting installer setup mode, change the
setpoint to the desired room temperature.
CHECKOUT
Heating
CAUTION
To avoid possible compressor damage, allow the
compressor to remain off for five minutes before
restarting.
