Heating And Cooling Thermostat Wiring Diagram

It reveals the components of the circuit as streamlined shapes as well as the power as well as signal connections in between the devices.

Heating and cooling thermostat wiring diagram. Instead c wires help deliver power from the system to the thermostat in case the other wires can t provide enough power. Furthermore it should be noted that a jumper can be installed between rc and rh for a heating and cooling system equipped with a single transformer. Y compressor stage 1 cooling y2 compressor stage 2 cooling g fan. S indoor and outdoor wired sensors.

Always refer to your thermostat or equipment installation guides to verify proper wiring. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams. Air conditioning ac contactor control board 1 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system. By the use of an adjustable set point the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home and to turn off the system when the desired temperature is achieved.

Note some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire. Red wire for rc terminal. See the diagram below for what each wire controls on your system. My paperback and e book.

Collection of heating and cooling thermostat wiring diagram. Not all systems have a c wire installed but nest thermostats were engineered to use as little power as possible for their display and internal circuitry so in the. A transformer for cooling and a transformer for heating. The thermostat uses 1 wire to control each of your hvac system s primary functions such as heating cooling fan etc.

This wire connects to your heat pump if applicable. The blue wire on the thermostat is the common or c wire. In this case the power from the transformer in the air conditioning system would go to the thermostat terminal. A wiring diagram is a streamlined traditional pictorial representation of an electric circuit.

The rh wire connects to the heating system. This wire may be red without an h attached in some cases. The rc wire connects to the cooling system. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system.

Heat pumps are different than air conditioners because a heat pump uses the process of refrigeration to heat and cool while an air conditioner uses the process of refrigeration to only cool the central air conditioner will usually be paired with a gas furnace an electric furnace or some other method of heating.