Wiring a Window AC fan

Discussion in 'The Projects Forum' started by John M, Jun 10, 2013.

  1. John M

    Thread Starter New Member

    Jun 10, 2013
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    0
    I am looking for some help with wiring, I am trying to build an exhaust fan for my shop using a fan and capacitor from a old 220v window unit. Unfortunatly my friend scrapped the unit before i could look at how it was wired. My main question is that this is a three speed motor (motor wiring diagram is in ledgible shape) when i wire this i want to run high speed only. Do i just use the BLK-Hi speed wire or all three? Also the capacitor is a Digital-Tech with four sets of terminals, two sets are marked FAN and the other two are marked HERM. There is no terminal marked COMMON which is what i am used to seeing.
    Can someone give me some guidance on how to wire this so i don't smoke the motor?:confused:
     
    Last edited by a moderator: Jun 10, 2013
  2. Shagas

    Active Member

    May 13, 2013
    802
    74
    Post pics of the wiring
    Also , you named your thread 'John M.' :))
     
  3. John M

    Thread Starter New Member

    Jun 10, 2013
    4
    0
    Thank you for your quick relpy, as you can tell i am new to this. I have attached a photo of the motor wiring diagram and of the capacitor.
    Any help will be greatly appreciated.


    Thank you,
    John M.
     
  4. Shagas

    Active Member

    May 13, 2013
    802
    74
    Hmm i've never seen this kind so I can't give you a reliable answer . Better wait for someone abit more experienced to give an input on this
     
    John M likes this.
  5. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,026
    3,789
    Are you seriously asking for wiring advice on 370vac system from anonymous people over the Internet?

    I would hope my kids are smart enough to hire an electrician if they weren't trained to handle this. I hope you will hire an electrician too.
     
  6. John M

    Thread Starter New Member

    Jun 10, 2013
    4
    0
    Thank you, I joined this forum to ask for help from friendly and Knowledgeable people. Apparently you are neither! But thank you for your reply anyway.
     
  7. John M

    Thread Starter New Member

    Jun 10, 2013
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    0
    Shagas, Thank you for taking your time to look at this. I appreciate your courteous and honest reply. Again Thank you, John
     
  8. strantor

    AAC Fanatic!

    Oct 3, 2010
    4,302
    1,988

    @John - I'm pretty confident that you would want to wire only the black wire. Even if I'm wrong, I'm pretty sure doing it this way, you run less risk by not shorting windings together.

    Anything I say here should be verified by our resident appliance McGuyver.
     
    John M likes this.
  9. trader007

    Active Member

    Feb 27, 2010
    222
    19
    Use only the black and orange wire. If you think the capacitor is OK, you can use the yellow wire instead of the orange. Someone confirm me on this, but I'm pretty sure that's how it is.
     
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