Connect the reversing valve wire to B or O, just as the previous thermostat. Do NOT connect wires to both B and O; if you had both on your old thermostat O goes to O, but your B wire will go to our C terminal). Leave the jumper connecting RH to RC (in some thermostats, this option will be a wire jumper across the terminal connections, while in other thermostats this will be a RH-RC shorting cap on the circuit board). Install a jumper connecting Y or Y1 to the W1 terminal (there will NOT be a wire from your system connecting to our W1 terminal). Connect the compressor wire to Y1 and the fan wire to G.
How do I wire my thermostat for a 4-wire single-stage heat pump system (without auxiliary heat or emergency heat)
Modified on: Mon, 17 Sep, 2018 at 4:45 PM
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