Collection of gas furnace control board wiring diagram.
Trane furnace control board wiring.
The transformer steps down 120 volts to the 24 volts the thermostat needs and sends out the 24 volts on two wires.
Furnace 24 volt transformer.
Oem upgraded replacement for trane furnace control circuit board cnt1308.
Thermostats use 24 volts ac from a transformer to control a furnace.
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Trane control circuit board cnt07991 trane 2 stage variable speed main control circuit board p n cnt07991 replaces p n cnt06017 cnt06585 d343687p02 59 4760 50v4 571 genuine trane american standard parts shipping rate for continental united states.
The two 24 volt wires go to the r terminal and c terminal inside the thermostat.
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A wiring diagram is a simplified conventional photographic depiction of an electric circuit.