Fan Ac Relay Wiring Diagram

I go over how to read the ratings for time how to read the resistance where to connect the 24v how to read the wiring diagram how to test the component how to know what contacts are normally.

Fan ac relay wiring diagram. Suggested electric fan wiring diagrams converting a 12 volt switch into a ground switch these diagrams show the use of relays on off sensors on off switches and on off fan controllers. A wiring diagram is a streamlined conventional photographic depiction of an electric circuit. Wellborn variety of hvac fan relay wiring diagram. However they can be a little puzzling to test.

The cooling fan wiring diagram below is what we ve found to be the simplest and most reliable method. It reveals the parts of the circuit as streamlined shapes and the power as well as signal connections between the devices. From the second a c relay connect yellow and orange wires to ground. See multiple fan wiring diagram on reverse page air conditioning relay.

Air handler fan relay wiring diagram a novice s guide to circuit diagrams. It reveals the components of the circuit as streamlined shapes as well as the power and also signal links between the tools. The gray wire from the aic relay goes to the 12 volt of the ajc. This is based on the draw from the fans if the fans are larger and draw more than 15 amps each it s recommended to install a second relay kit as shown below.

An initial take a look at a circuit layout might be complicated yet if you could check out a subway map you can review schematics. May 15 2020 by larry a. From the a c relay connect the yellow and orange wires to ground. With dual cooling fans there are two methods for wiring up the relay kit.

It uses a 40 amp electric relay and electric fan sensor. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay tab 87. Connect the red wire to the temperature switch wire gray on the frh ho harness. Chrysler cooling fans are a common fault.

Connect the red wire to the sending unit wire of the original fan relay harness. Collection of air handler fan relay wiring diagram. Review the electrical diagram before you begin and this should help you diagnose the system. Optional ac relay overrides temp switch and turns on fans when a c is turned on adjustable fan switch thermostat with radiator probe 12v switching non.

The fan will turn on when the a c compressor activates.