Two Speed Blower Motor Wiring

Check the diagram on the old motor to figure out which wires are which.

Two speed blower motor wiring.

4 position rotory switch. Using the wiring diagram for the unit that holds the blower motor it will be possible to identify the fan relay as well as the various speed terminals and terminal locations if the motor is multi speed. Proper wiring to switch is a must and also be sure proper switch is installed. Http amzn to 2ep7g5p here is a video on how to.

By connecting the proper wires to the high and low speed terminals on the motor and switch you can control how fast or slow it turns once powered up. Two speed motors with 2 separate windings dual winding high speed red leads red leads black leads black leads m 3 single speed only 3ø wiring diagrams u1 red v1 yellow w1 blue thermal contacts tb white l1 l2 l3 n e codes. According to the new motor white l1 neutral black high speed blue medium speed red low speed. If you are working on two speed motor wiring you will need an ac power supply the two speed motor and a double pole double throw switch.

Diagram dd4 low speed low speed u1 u1 v1 v1 w1 w1 u2 u2 v2 v2 w2 w2 l1 l1 l2 l2 l3 l3 e e high. Two separate windings designed to rotate the motor at two different speeds or inbuilt resistors which alter the voltage supplied to windings. One terminal is the ground another common. Black high speed yellow medium high orange medium low red low speed.

Two speed electric motors operate in one of two ways. However the wiring to the motor is the same. We will go over which speed each wire color is an. What speed on the switch are you running.

Later models had a 3 speed. Inst maint wiring 5 qxd 20 11 2015 11 37 am page 6. The other wire should go to blower switch terminal 2. From what i can see looks like on the old motor.

These diagrams are current at the time of publication check the wiring diagram supplied with the motor. Tester101 nov 1 15 at 3 43. You should have a 2 speed switch. Http amzn to 2eybrx1 emergency stop switch.

If the blower is using a multi speed motor the settings will be labeled as high medium and low.