One is for cool and the other is for heat hence the abbreviation rh and rc.
Heater thermostat wiring.
Unlike the low voltage thermostats that control central heating and air conditioning systems electric baseboard heaters use line voltage thermostats that are installed as part of the full voltage circuit powering the heater.
Thermostat wire comes in various weights.
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.
Two wire thermostats typically have a red and a white wire.
The common wire sometimes referred to as the c wire is what s responsible for delivering constant power to your thermostat.
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.
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.
These run from the thermostat to the furnace and control the heat in a home.
Black color is neutral while red is phase or line and the yellow green wire is used for ground earth.
Always turn off the power before starting work.
Orange this wire connects to your heat pump if you have one.
To wire a thermostat of this kind basic electrical skills tools and safety techniques are required.
Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams.
Yellow the yellow wire connects to your compressor.
To wire an installed wall thermostat to a cadet in wall fan heater.
Red now there can be two separate wires for this.
The water heater element is connected to the thermostat via t 2 as hot and l 4 as neutral.
The thermostat can be mounted directly on the heater itself or it can be mounted on the wall so that the circuit wiring passes through the thermostat first on the way to.
The line is connected to the l 1 terminal while neutral or second line is connected to the l 3 terminal.
Remove a knockout in the wall can and attach the supply wire to wall can with a strain relief connector leaving a 6 inch wire lead for later use.
If you have heat and ac you ll need 18 5.
Green the green wire connects to the fan.
Route supply wire from wall thermostat to wall can.
R the r terminal is the power.
Thermostat wire is just a big spool of bundled color coded wires.
Color of wire and termination.
The 18 refers to the gauge and the 5 refers to how many individual wires are inside the cable.
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.