Furnace Blower Fan Wiring Diagram

8 refer to the blower chart for cfm requirements.

Furnace blower fan wiring diagram.

A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit. Place a jumper connecting y and o. This diagram is to be used as reference for the low voltage control wiring of your heating and ac system. Video demonstrating the standard wiring for the primary blower motor found in most furnaces and air handlers in residential hvac.

The fan or furnace blower motor is controlled by the two left connections green dots. It shows the parts of the circuit as streamlined shapes and the power as well as signal connections in between the devices. The furnace limit switch which will turnoff the burner if the temperature limit is reached is controlled by the two right connections red dots. 3 speed furnace blower motor wiring diagram wiring diagram is a simplified enjoyable pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the skill and signal links amid the devices.

Some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire. Hope this helps a few folks. Variety of furnace fan motor wiring diagram. Jump if needed to achieve correct cfm.

The left illustration shows normal wiring for this set up.