5
To Install Thermostat (continued)
10. Use supplied screws to mount thermostat base to wall.
11. Insert stripped, labeled wires in matching wire terminals. See “Wiring Diagrams” section of this
manual (Pages 6-7).
CAUTION!
: Be sure exposed portion of wires does not touch other wires.
12. Tighten screws on terminal block. Gently tug wire to be sure of proper connection. Double check that
each wire is connected to the proper terminal.
13. Seal hole for wires behind thermostat with non-flammable insulation or putty.
14. Set the fan switch to Electric or Gas/Oil
14. Set the temperature scale jumper to Fahrenheit or Celsius.
15. Insert two fresh “AA” alkaline batteries into thermostat, oriented in the direction shown on the battery
compartment.
16. Replace cover on thermostat by snapping it in place.
17. Turn on power to the system at the main service panel.
If your LCD is blank or displaying LO BAT, the batteries are not installed or need to be changed. We
suggest you change the batteries at least once a year, or whenever the LO BAT warning displays.
Note: After installing new batteries, you have to reset the room temperature setting and the
differential setting.
1. Move the Off/Heat switch into the Off position.
2. Move the Fan Auto/On switch into Auto position.
3. Remove the cover, and install the two “AA” alkaline batteries. Proper battery installation is important!
Make sure the positive ends of the batteries match the positive terminals in the battery compartment.
If the display is on, the batteries are installed properly.
Installing and Changing Batteries