Thermostat Wiring Color Diagram. G fan green r 24 vacrcrrh red y compressor air conditioner yellow w heat white at this point you are going to play the match game. Heat pump thermostat wiring diagram heat pump thermostat wiring a typical wire color and terminal diagram 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.
Generally 24vac white w heat signal yellow y cooling or air conditioning signal green g fan or ventilation system blue or black c common or ground for the circuit. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable g green wire controls fan on auto the diagram shows how the wiring works. Its meant to aid all of the average user in creating a suitable method.
Well explained tutorial on wire color codes.
It enables the thermostat to control the air conditioning unit. Red r power for the thermostat. T pro1 technologies inc. Well explained tutorial on wire color codes.