6.Wiring
1. If you are replacing a thermostat. take
note of the terminal connections, the
wiring connections may not be color
coded. For example, the Green wire
may not be connected to the G terminal.
2. Loosen the terminal block screws. insert
wires then retighten terminal block screws.
3. Place nonflammable insulation into wall
opening to prevent drafts.
7. Wiring Diagrams
Power supply.
Factory-installed jumper. Remove only when installing on 2- transformer systems.
In heat pump mode, please check the reversing valve to see whether it is in
O
or
B
position, and
enter the system to set reversing valve to the position required.
The system is in the electric mode as default setting. If the system is gas or oil, enter the setting
interface in the gas mode.
For 24 VAC common connection when thermostat is used with battery power mode.
Do not over tighten terminal block
screws, as this can damage
terminal block. Keep the thermostat
correctly fitted to the base to avoid
operation issues.
Heat pump changeover valve
energized for cooling
Heat pump changeover valve
energized for heating
Use shielded or non-shielded 18-22 gauge thermostat wire.
