Before uninstalling the old thermostat take a picture of the wiring with your cell phone before removing the wires. Always refer to your instructions when wiring up a system to ensure you are wiring to the manufactures requirements.

Basic Heat Pump Wiring Diagram Wiring Diagrams
Basic heat pump wiring 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. Goodman heat pump package unit wiring diagram gallery goodman heat pump package unit wiring diagram new lennox thermostat. These two connections will ensure that there is power to the thermostat that you are operating. C is known as the common terminal. The color of wire r is usually red and c is black. 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.
This video is intended to help you understand how basic heat pump systems are. Heat pump thermostat wiring chart diagram. This way you have a reference. To review a wiring diagram initially you need to understand exactly what basic elements are included in a wiring diagram as well as which photographic signs are used to represent them. Heat pump thermostat wiring a typical wire color and terminal diagram. The basic heat pump wiring for a heat pump thermostat is illustrated here.
The typical aspects in a. It corresponds to the chart below to explain the thermostat terminal functions. 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.