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Old 06-05-2012, 10:29 AM   #1
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5 Wire to 3 Wire HVAC Fan Motor


Original RUUD a/c unit fan motor was 3 wire model from 1997. The replacement motor has 5 wires and this conversion diagram was on the side of the motor.

I'm going from 5 wire to 3 wire (second diagram).

1. I need to connect the Brown and Yellow wires together.
2. Not sure what I need to do on the Orange and Purple wires. Is it just connecting them together as well? Not sure what that round thing means in the diagram.

The 3 wire motor has Orange, Brown and Black wires.

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Old 06-05-2012, 01:21 PM   #2
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5 Wire to 3 Wire HVAC Fan Motor


208/230 orange and purple to the capacitor(round thing) wire nut brown and yellow together out of the motor.then wire in 2 hot wires ONE to black and other onto capoacitor where orange is...verify your rotation the motor can be reversed changing the capacitor wires

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Old 01-19-2013, 02:59 PM   #3
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5 Wire to 3 Wire HVAC Fan Motor


I am sorry to bump such an old thread, but I am having this exact same issue. I replaced my RHEEM OEM Motor with a Protech Motor and there is 3 Wires (brown, orange are going to the capacitor) (black going to the contactor)...as opposed to the new motor that has 5 wires (black, orange, brown, yello, purple)

I sort of understand the diagram above, but then there would be only two conections made one to the capacitor (orange&purple) and one to the contactor(black), instead of two to the capacitor and one to the contactor. Any help on this?

I don't fully understand how I should wire TWO hot wires one to black and one to capacitor where orange should be... this has me confused. Thanks.
Thanks.
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Old 01-20-2013, 08:26 AM   #4
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5 Wire to 3 Wire HVAC Fan Motor


Orange and Purple are 2 connections to the capacitor. They are put on opposite terminals. The black to the contactor. And then another wire from the contactors other pole to the capacitor.
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