Reversing Valve Heat Pump Thermostat Wiring Diagram. Thermostat wiring and wire color chart thermostat wiring colors code this wire goes to outside heat pump condenser where the reversing valve is located. Air handler ac separated from furnace rc and r jumper removed.
These two connections will ensure that there is power to the thermostat that you are operating. After the setup is completed and also honeywell heat pump nest thermostat wiring diagram doesnt bring you problem the next step will be placing the thermostat. Lets begin by trying to gain an understanding of the reversing valve and its function.
Air handler heat pump electric resistance.
Additional articles on this site concerning thermostats and wiring can help you solve your problem or correctly wire a new thermostat. Thermostat wiring for heat pump auxiliary heat nest wiring diagram heat pump wiring diagram schemas. As shown in the diagram you will need to power up the thermostat and the 24v ac power is connected to the r and c terminals. Low voltage is the voltage that is used to control the unit from a thermostat or other single phase will be two power wires and a ground three phase will be the thermostat.