Thermostat wiring and wire color chart thermostat wiring colors code. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system.
Suburban Furnace Thermostat Wiring Diagram
Furnace thermostat wiring diagram. Heating only thermostat wiring diagrams if you only have a furnace such as a gas furnace oil furnace electric furnace or a boiler. 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. Therefore you will use the following color code for simple thermostat wiring. For example if the red wire is connected to w on the thermostat the furnace should turn on. Terminal r or terminal rh for the red wire. Notesome ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.
Truck tool rental. It reveals the parts of the circuit as simplified shapes and also the power as well as signal links between the tools. This diagram is to be used as reference for the low voltage control wiring of your heating and ac system. This originates from the transformer. The basic heat ac system thermostat typically utilizes only 5 terminals. Variety of goodman furnace thermostat wiring diagram.
Goodman furnace thermostat wiring diagram. A wiring diagram is a simplified standard pictorial representation of an electrical circuit. Color of wire and termination. R the r terminal is the power. Add one to your home and do it in one day with this handy diy guide on wiring a thermostat from the home depot. When the red wire is disconnected from w the furnace should turn off.
Programmable and smart thermostats are must have home items today. Thermostat wiring diagrams furnaces. 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. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac. Furnace thermostat wiring diagram terminal letters on a thermostat and what they control the hot wire 24 volts usually red from the transformer is the main power wire to turn on or off a furnace components. The thermostat should automatically complete these connections when a set temperature is reached.
Always refer to your thermostat or equipment installation guides to verify proper wiring. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above.
















