Heat Pump Honeywell Thermostat Wiring. Honeywell T4 Pro Thermostat Wiring Diagram Wiring Diagram and What wire should I use for a heat pump thermostat? The best choice is 18-8 wire 7 Wire Honeywell Thermostat Wiring Diagram [Full Guide] 2
A heat pump runs your compressor for both heating and cooling A first stage heat pump system will have 1 compressor hence only 1 Y wire Nest and Honeywell 4-wire thermostats are not communicating thermostats
thermostat wiring honeywell Thermostat wiring honeywell diagram wire. If your O or B terminal shares a label with another wire — typically W —identify whether you have a heat pump system or not 2H/1C Heat Pump System: NOTE: If dual fuel, TH6320WF (Trade FocusPRO WiFi 6000 only) R wire - Power [R+Rc joined by jumper] Y wire - Compressor contactor C wire - 24VAC common O/B wire - Changeover valve G wire - Fan relay Aux Auxiliary heat* E wire - Emergency heat relay L wire - Heat pump fault input
Home Heating Thermostat Wiring Diagram Wiring Diagram and Schematics. Honeywell 1st Stage Heat Pump With Auxiliary/ Emergency Heat (7 wire) This is also known as a 7 wire honeywell thermostat wiring This is the wire that controls the first stage compressor relay