Hvac Control Panel Wiring

In standard thermostat wiring the blue wire connects to the common terminal on the thermostat making it the c wire.

Hvac control panel wiring.

How to wire an hvac ac unit. 2 how to get the electrical wiring for air conditioning systems. Air conditioning ac contactor control board 1 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system. It has varied applications in many industry sectors being used for wiring electrical cabinets.

Origin is the control transformer and then the r terminal. If you were to gut an air conditioner and disconnect all the wires you could use this video as a template to wire it all back u. Always refer to your thermostat or equipment installation guides to verify proper wiring. The panel wire is flexible with a single core and one layer of heat resistant pvc insulation.

My paperback and e book. In this configuration the blue wire acts as the return wire between the 24v transformer in the heating cooling system control panel and the thermostat. Internal power and control wiring is neatly routed adequately anchored and all wires identified with cable markers as per standards applicable to hvac industry. It reveals the components of the circuit as simplified shapes and also the power and also signal connections between the gadgets.

The red wire is hot. Red wire for air conditioner control power hot 1 the r terminal is the 24 volt hot feed from the control step down transformer. That will power the relay contactor or complete the circuit in the circuit board. The control panel design is equivalent to nema 4 ip55 with hinged door for easy access ensuring dust and weatherproof construction.

A wiring diagram is a simplified conventional photographic depiction of an electrical circuit. Note some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.