The left illustration shows normal wiring for this set up.
Furnace blower fan wiring diagram.
Some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.
A wiring diagram is a simplified traditional pictorial representation of an electrical circuit.
A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit.
This diagram is to be used as reference for the low voltage control wiring of your heating and ac system.
Hope this helps a few folks.
Jump if needed to achieve correct cfm.
It shows the parts of the circuit as streamlined shapes and the power as well as signal connections in between the devices.
Place a jumper connecting y and o.
8 refer to the blower chart for cfm requirements.
The fan or furnace blower motor is controlled by the two left connections green dots.
Assortment of furnace blower motor wiring diagram.
Variety of furnace fan motor wiring diagram.
The furnace limit switch which will turnoff the burner if the temperature limit is reached is controlled by the two right connections red dots.