Goodman furnace thermostat wiring diagram collections of goodman wiring diagram gas furnace thermostat trend truck in heat. Connect the white wire to the w terminal on the furnace and thermostat.
Remove the cover of the furnace or air handler.
You can find out more Diagram below
Thermostat wiring for gas furnace. It will consist of three to eight wires of different colors including red white green yellow orange blue black etc. You should be aware that this may have changed especially if the person who wired the thermostat didnt use conventional color coding. The entire bundle might be wrapped with a housing.
They connect to a two wire thermostat generally a mechanical thermostat with a mercury filled ball connected to a coiled bi metal strip. 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. Locate where the wire bundle from the thermostat enters the furnace.
For example if the red wire is connected to w on the thermostat the furnace should turn on. The 18 refers to the gauge and the 5 refers to how many individual wires are inside the cable. If your system doesnt have a c wire youll need to run a new cable from your furnace to your thermostat to install most of the modern smart thermostat models.
Strip the red and white wires back about 14 inch at both the thermostat and the furnace ends. Gas furnace thermostat wiring diagram collection. A large majority of homes today have an hvac system containing a furnace oil gas or electric and an ac unit.
The thermostat wiring on these systems can have very similar wiring properties. When the red wire is disconnected from w the furnace should turn off. Goodman furnace thermostat wiring diagram chromatex.
The most basic of systems such as an older heat only forced air gas furnace with a standing pilot light only need two wires for control. The thermostat should automatically complete these connections when a set temperature is reached. This wire should go directly to the heating source whether it be a gas or oil furnace electric furnace or boiler or auxiliary heating for a heat pump.
White wire for w terminal. This one is on the low voltage terminal board used to connect the furnace to the thermostat. Most two wire thermostats wire have a red and white wire encased in a brown insulated coating.
This video is part of the heating and cooling series of training videos made to accompany my websites. To wire a thermostat you must first be aware of the type of system that you have in your home. Wiring diagram goodman gas furnace best goodman furnace thermostat.
Thermostat wire is just a big spool of bundled color coded wires.
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