With the motor disconnected from the load the speed will be close to 1500 rpm regardless of the connection. I capped off one of the medium speeds, attached high to high, low to low, and one medium. Heatcraft Evaporator Wiring Diagram 220 Library Of 2 to 1 and 3 3 (slow): 3 speed fan motor wiring diagram . Collection of westinghouse 3 speed fan switch wiring diagram. One more thing to keep in mind is that the actual operating speed for a motor like this is determined by the load. Refer to the motor manufacturer’s data on the motor for wiring diagrams on standard frame ex e, ex d etc. Ww2.justanswer.com 3 speed ac fan motor wiring diagram source: Black speed switch with only three terminals connected, two wire capacitor. Wiring a table fan motor with capacitor electrical question: A wiring diagram is a simplified standard pictorial representation of an electric circuit. It has a 3 speed fan motor. Look for a switch with four wires), the manufacturer's wiring dia...