Furnace Wiring Diagram To Thermostat. One is red the other is white. Most thermostat systems have two wires.
Always refer to your thermostat or equipment installation guides to verify proper wiring. One is red the other is white. How your gas furnace operates and how to maintain it so you can.
However it doesnt mean link between the wires.
S indoor and outdoor wired sensors. The thermostat uses 1 wire to control each of your hvac systems primary functions such as heating cooling fan etc. A wiring diagram is a simplified standard pictorial representation of an electrical circuit. Always refer to your thermostat or equipment installation guides to verify proper wiring.