Heat Pump Reversing Valve Wiring Diagram

How a reversing valve works.

Heat pump reversing valve wiring diagram. With reversing valve and unit operating in the cooling phase. What i want to happen is for the heat pump to be the primary stage 1 stage and the oil fired boiler this ahu has a hot water coil to be the second stage. Heat pump thermostat wiring a typical wire color and terminal diagram. Heat pumps use a reversing valve to change the direction of flow of heat through your heat pump system.

This particular system is a goodman condenser with a first company air handler and a honeywell focus pro 6000 thermostat. These two connections will ensure that there is power to the thermostat that you are operating. Different heat pump models label the auxiliary heat terminal differently than shown. The basic heat pump wiring for a heat pump thermostat is illustrated here.

This way you have a reference. It corresponds to the chart below to explain the thermostat terminal functions. It is generally soldered to the pipes or copper tubing which are typically going in and out the device towards the other parts of the heat pump. Ac heat pump with standard air handler and single stage electric backup heat standard heat pump thermostat heat pump condenser 24 volt fan only operation common air conditioning heat pump reversing valve electric backup heat low voltage connection some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.

The color of wire r is usually red and c is black. Lets begin by trying to gain an understanding of the reversing valve and its function. L only connected if heat pump has a fault terminal. Heat pump thermostat wiring chart diagram.

C is known as the common terminal. If lockout of aux heat on high outdoor temperature is required wire c7089u1006 to the two s terminals. 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. Telling about heat strip is white wire reversing valve is orange wire yellow wire is for compressor blue wire is common.

Effective troubleshooting on heat pumps requires a thorough understanding of the heat pump system. Because of this its important to know what wires go where for your heat pump. How to wire a heat pump for control there may be a time when you will want to change your old heat pump thermostat with a new heat pump thermostat. Some heat pumps use b rather than o for reversing valve.

Consult heat pump wiring guide. Heat pump thermostat wiring for heat pump. We have other articles here that will help you with thermostat wiringthese other articles help you with thermostat wiring colors and thermostat wiring diagramsin this article we will provide specific information for wiring a heat pump for control. I am a heat pump rookie so need a little help lol.