Heating Thermostat Wiring

Some thermostats are as simple as a two wire system.

Heating thermostat wiring.

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. It terminates in your outdoor condenser for reversing valve operation from hot to cold. The orange wire connects to terminal o on your thermostat. Orange this wire connects to your heat pump if you have one.

Red now there can be two separate wires for this. Only air source heat pumps connect to your outdoor condenser. 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. R the r terminal is the power.

Thermostat wiring and wire color chart thermostat wiring colors code. My paperback and e book. Depending on the severity of the winters in your area you could realize a savings of up to 180 on your yearly energy bills. The orange wire only applies to homeowners with an air source heat pump.

If you have empty ports or connections don t worry. The common wire sometimes referred to as the c wire is what s responsible for delivering constant power to your thermostat. You ll probably see a thermostat jumper wire connecting the rc and rh terminals. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system.

It is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams. For programmable thermostats and smart thermostats c wires are essential for setting a schedule or having your heat or air conditioner turn on at a desired temperature while some units can run without a c wire even brands like nest recommend having one for optimal. Replacing your old unprogrammable model with a new programmable or wi fi thermostat can make a big difference during the changing seasons.

If you re at all in doubt contact a heating and cooling company. Your thermostat is most likely fine. It s there so you can supply power to the heating and cooling switches with a single wire which is usually red. Your new thermostat should have the same corresponding code on the back unless otherwise noted in the instructions.

The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. The orange thermostat wire links to your heat pump if you have one. There are few home improvement projects that offer yearly savings like a new thermostat installation. One is for cool and the other is for heat hence the abbreviation rh and rc.