GE PROGRAMMABLE THERMOSTAT Installation Instructions Manual page 4

Installation Instructions (continue)
11. Fasten sub-base to wall using supplied #6 screws into wall
anchors.
12. Refer to wiring diagrams and wire thermostat sub-base to the
attached HVAC equipment.
13. To prevent electrical shorts and potential damage to the
thermostat, ensure all of the sub-base wire connections are
secure and are not touching any other terminal. Push any
excess wire back into wall cavity and insulate wire opening
with suitable material.
14. On thermostat body, locate switch SW1 on thermostat circuit
board.
15. Set switch SW1-2 to HP for heat pump system or STD for
conventional (or Standard) system.
For heat pump system, set switch SW1-1 to E/B for heat
changeover valve or G/O for cool changeover valve. For
conventional (or Standard) system, set switch SW1-1 to E/B for
Electric or G/O for Gas.
ON
1 2
Gas
Heat-Cool
16. Attach front body of thermostat to sub-base of thermostat,
being careful to align the terminal pins on the front body with
the terminal block on the sub-base.
17. Restore system power and continue to Test the thermostat.
ON
1 2
Electric
Heat-Cool
4
ON
1 2
Heat
Pump O
ON
1 2
Heat
Pump B