Honeywell RTH7600D Owner's Manual - Page 25
Wiring-heat pump
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SETUP WIRING Wiring-heat pump RTH7600 Alternate wiring (for heat pumps only) Leave metal jumper in place, connecting R & Rc terminals. If your old thermostat had both V and VR wires, stop now and contact a qualified contractor for help. If your old thermostat had separate O and B wires, attach the B wire to the C terminal. If another wire is attached to the C terminal, stop now and contact a qualified contractor for help. If your old thermostat had Y1, W1 and W2 wires, stop now and contact a qualified contractor for help. If L terminal is used, C terminal wire must be 5 connected (contact a contractor if there is no C wire). If E and Aux terminals do not each have a wire 6 connected, use a small piece of wire to connect them to each other. 2 3 ASSISTANCE TROUBLESHOOTING 35 5 6 46 M28077 23 69-2206EF-01