Need advice on installing 4-wire condenser motor

Problems related to residential installations.

Need advice on installing 4-wire condenser motor

Postby Jack32 » Fri Sep 14, 2012 2:22 pm

My old condenser motor had 3 wires(black, orange and purple). My new Emerson 1859 has 4 wires(black,white,brown, brown with white stripe).
I know for a fact that the Emerson 1859 is a direct replacement for my motor. It says so on the nameplate of the old motor

How to you connect this motor? My old motor has purple going to the capacitor, black going to the defrost board and the orange goint to the contactor.

The heat pump is a Lennox 3-ton unit 10HPB36-5P circa 1999

Thanks for any assistance.
Jack32
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