Ac Furnace Wiring Diagram. The color of wire r is usually red and c is black. The company founded in 1975 and based in houston texas manufactures residential heating and cooling systems.
Show threads show posts. Then look up the old thermostats wiring diagram on the internet and see if you can find out what 12 3 are controlling on your old thermostat. See wiring diagram for.
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Item 53 burner assembly 30209. If you can not find out any information on your old thermostat then i really have no recommendations other than disconnecting the 3 red wires from the thermostat. Manual control can be mounted in return duct or on wall in living space. Atwood furnace 8940 iii dc tune up kit.