6. After pressing SET for the 4th event, the day of the week along the top will switch
to SAT SUN and AM1 will be displayed. Repeat steps
weekend settings.
7.With the weekend settings programmed, place the
CUSTOMIZING THE THERMOSTAT
Settings
System
Cool: The thermostat controls the cooling.
Off: The heating and cooling systems are off.
Heat: The thermostat controls the heat.
Emer: The thermostat controls the second stage emergency heat. Use only when the primary stage of heat is not functioning or requires service. The display will show CHECK HP
when the heat pump requires service.
Fan
Auto: Equipment controls the fan.
On: The fan operates continuously.
Temperature Differential
The temperature differential for 1st stage is factory set at 1.0°F (.5°C). This
means that whenever the room temperature changes by one degree Fahrenheit from the temperature setting, the system will turn on. If the sys- tem turns on too often, increase the temperature differential.
NOTE: The temperature differential for 2nd stage is factory set at
2.0°F (1.0°C)
Changing Fahrenheit (°F) to Celsius (°C), Clock Setting, Temperature Differential, and Filter Monitor
1.The thermostat is preset to display the temperature in degrees Fahrenheit (US
models) or degrees Celsius (Canadian models). The temperature display can be changed. Press and hold both the
SELECT and SET buttons for three seconds. The display will flash either an F or C. Release buttons. Press the 
or 
button to switch the display.
2. Press SET. The display will switch to the clock setting.
3. The display will read CLOC. Use the 
or 
button to toggle between 12 or 24 for the clock setting.
4. Press SET. The display will switch to the differential setting for 1st stage heating and cooling.
5. The display will read diFF.
Press the 
or 
button to adjust the differential up or down.
8
