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Connecting replacement fan motor in HP condenser

I am replacing a fan motor on the condenser unit of a Carrier heat pump. The motor I am replacing is a GE P612S, 1/12 HP. The new motor is a Dayton 4M261J, 1/6 HP. Other than that the specs are about the same. The capacitor and wiring set-up of the motors is different and my problem is I don't know how to connect the new motor/capacitor. The old motor had three wires and the new has four wires. On the old motor, the Brown and Yellow wires went to different terminals of a three-terminal capacitor, and the black wire (marked line) clipped into a circuit board. I bought a capacitor for the new motor, and it has two terminals which are unmarked. The new motor has 2 wires marked for the capacitor, a brown and a brown-white pair. It's black wire is marked for line 2 and it has a purple marked common-line 1. So, I have some ideas on how to wire the new motor into the existing set-up, but I really don't know the right way. With electrical components, there is often only one chance to do it right. I will appreciate it if somebody can enlighten me on how to tie in the new motor.

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  • Chip Walsh
    Chip Walsh Nov 29, 2013

    I am replacing the fan motor, not the compressor motor. I have only removed the three wires that were connected to the fan, so wiring for the compressor has not been disturbed.



    Burzerko, where is the fan motor in that diagram? And the thing with three terminals at bottom right is labeled "compressor," right? The diagram doesn't seem to show the three-terminal capacitor. The item on the left side with an arrow to the red dot, is it the run capacitor? With the label in the middle like that, I can't tell what's what. Sorry, I am a duffus when it comes to reading electrical diagrams. I did see this diagram on another thread about capacitors, but it is unclear how it relates to my issue.

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  • Carrier Master
  • 15,478 Answers

What is the model number of the heat pump? What is the voltage that you are dealing with?

Posted on Nov 27, 2013

  • 7 more comments 
  • Chip Walsh
    Chip Walsh Nov 27, 2013

    The model number is 38YC024310 and the motors are marked 208-230v.

  • Brad Brown Nov 28, 2013

    That new motor should have a diagram on it. The wiring for the heat pump ishttp://www.docs.hvacpartners.com/idc/gro...

  • Brad Brown Nov 28, 2013

    you should look at the first example

  • Chip Walsh
    Chip Walsh Nov 29, 2013

    Brad, having the wiring diagram doesn't help me that much since I need to add a capacitor that is not in the wiring diagram.

  • Chip Walsh
    Chip Walsh Nov 29, 2013

    Berzerko, thanks for the wiring schematic, but I can't ID a three terminal capacitor or a fan motor in the diagram.

  • Chip Walsh
    Chip Walsh Nov 29, 2013

    B Carson, I haven't monkeyed with the compressor wiring so I'm not sure how your solution helps me wire the fan motor.

  • Brad Brown Nov 29, 2013

    Chip,

  • Brad Brown Nov 29, 2013

    Add a Comment What was the link to the diagram that berzerko listed, I dont see those comments.

  • Chip Walsh
    Chip Walsh Nov 30, 2013

    Crazy, but I don't see it either. I did see the same diagram in another thread here, and the fellas name is birzerko. Sorry for the confusion.

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Sincerely,
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seth

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