Best Thermostat Wiring Diagram Heat Pump

In case you need to change one of those wires out.

Thermostat wiring diagram heat pump. E emergency heat. O b reversing valve for heat pump systems. L a a input for heat pump fault.

Y compressor stage 1 cooling y2 compressor stage 2 cooling g fan. U humidifier dehumidifier or ventilator control. The basic heat pump wiring for a heat pump thermostat is illustrated here.

The thermostat uses 1 wire to control each of your hvac system s primary functions such as heating cooling fan etc. Your system likely only has one transformer as most typical residential systems only use a single transformer for control. At the minimum draw a picture of it referencing the wires wire color and what terminal the wire is attached to what terminal.

Ph ph heat pump must use thermostat and sub base as stated in pre sale. S indoor and outdoor wired sensors. This way you have a reference.

Heat pump thermostat wiring chart diagram. That is a basic honeywell thermostat wiring diagram for a single stage heat pump. The color of wire r is usually red and c is black.

So if you are an 18 6 wire and you are going to have an additional wire to be safe for the future. If you have a two stage heat pump then you will also utilize terminal y2 for the second stage. The photo and the.