HVAC blower motors

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Joe Scharle

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Joe
I gave up trying to find the original thread to which I thought I gave a minimal answer, so I will put this info here. Might be a good idea to cut and paste this if you plan to use one of those blowers in the future.

The industry standard color code is:
Black …High Speed
Blue…. Med Speed
Red … Low Speed
Brown.. Capacitor
Brown with White stripe.. Capacitor Common (Connect to the identified connector on the capacitor.)
White or yellow.. Line 2 or motor common

The two brown wires on your motor are connected to the run capacitor.

You motor may have two more wires, a brown wire and a purple wire. Check the motor data plate carefully. If your motor is reversible, one of those two wires is common for clockwise rotation and the other is common for counter-clockwise rotation. When you determine which rotation you need you then connect that wire to L2 in the unit. The other rotation wire is capped and not used.

 
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