Impressive Heat Pump Wire Colors

Brown often connects to c or common or to w2 2nd stage backup heat.

Heat pump wire colors. Dark blue heat pump connect to b may use orange to o instead pink purple. It s important to note that in some cases the color of the wire does not necessarily mean it connects to that came color one the board. Red or rc wires.

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. This thermostat wire color code will help homeowners understand the anatomy of their thermostat. 16 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system.

Stand alone boiler the colors would be red and white but if you are trying to integrate all three appliances together that would be something a professional technician would have to look at as it would require either special wiring or a special thermostat that will stage up the heat pump the oil furnace and the boiler. Other heat pump control terminals and wiring designations y wire terminal designation this color is usually a yellow wire and goes to the y terminal. The thermostat wire is color coded so the technician can identity which wire goes to which port on each board.

Blue or c wires. Heat pump connect to o. Heat pump thermostat wiring a typical wire color and terminal diagram.

Ac heat pump with variable speed air handler and two stage electrical backup heat control wiring some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire. There are several factors to be considered such as what is the desired primary heat source that you want and what is the most economical way to control everything among a. It energizes the compressor contactor in the condenser.

This could happen if the wires are swapped on both ends or if there s a spice in the wire somewhere that was not matched up to the correct color. Industry standard for geothermal heat pumps. C is known as the common terminal.