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