Thermostat Wiring Diagram

So before starting with the installation process you should be.

Thermostat wiring diagram. The thermostat uses 1 wire to control each of your hvac system s primary functions such as heating cooling fan etc. The green wire connects to the fan. White rodgers shows a slightly different type of wiring diagram that mirrors a ladder logic. Red now there can be two separate wires for this.

White the white wire is what connects to the auxiliary heat on your system. R the r terminal is the power. Thermostat wire and electrical. Thermostat wiring diagrams for hvacs heating ventilation and air conditioners different installation processes and methods are followed for different types of hvac systems.

Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable. S indoor and outdoor wired sensors. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above. Thermostat wiring and wire color chart thermostat wiring colors code.

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. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system. The basic heat a c system thermostat typically utilizes only 5 terminals. Orange this wire connects to your heat pump if you have one.

Green the green wire connects to the fan. The white wire connects to your heat. The rh wire connects to the heating system. Heating only thermostat wiring diagrams if you only have a furnace such as a gas.

This wire connects to your heat pump if applicable. The rc wire connects to the cooling system. Thermostat wiring diagrams thermostat wiring colors and terminals. Installing thermostats for air conditioners are way different from installing thermostats for heat pumps.

Color of wire and termination. See the diagram below for what each wire controls on your system. Yellow the yellow wire connects to your compressor. Here is the industry standard thermostat wire color code used for most systems.