Ac Thermostat Wiring A Condenser

Both are connected to the same contactor relay located inside the condensing unit. When a service professional has installed a new condenser and completed the refrigerant piping connections hookup of the electrical wiring will go something like this. 18 gauge standard single stage heat thermostat standard a c condenser ac contactor 4 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system.

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Ac thermostat wiring a condenser. Check the area behind the thermostat to see if a c wire was tucked into the wall by your electrician or the installer. If you have one that s your c wire and you re ready for general installation. If you don t have a c wire. Look for a wire connected to a terminal labeled with a c on the thermostat.

Today the terminal with the abcd wires connected in the furnace has 2 sets of wir read more. Typically the yellow wire will be run to the air handler where at the air handler this wire is usually connected to another wire typically by a wire nut. Always refer to your thermostat or equipment installation guides to verify proper wiring. Always refer to your thermostat or equipment installation guides to verify proper wiring.

Furthermore it will be one of the few control wires thermostat wires that will terminate at the condenser in a split system air conditioner and heating system. The installer or electrician must install two sets of wires when connecting the condenser. 18 gauge standard single stage heat thermostat standard a c condenser ac contactor 4 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system. Stage backup heat control wiring standard air handler wire size.

I have a gas furnace and an ac condenser. Stage backup heat control wiring standard air handler wire size.