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  1. #1
    Join Date
    Jun 2011
    Location
    Long Island, NY
    Posts
    59

    Testing a relay on a PTAC

    What is the proper procedure for testing a 5 pole relay?

  2. #2
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,326
    If you are an HVAC technician, this should be in the Tech To Tech forum.

    While the question involves electricity, the Electrical forum is more about conforming electrical installations to professional standards. Since your question involves testing a part INSIDE a unit, tech to tech is more appropriate.

    You can click the black triangle in the lower left hand corner of your post, and ask a moderator to move your post. Thanks.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,603
    Moved to Tech to Tech Commercial forum.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    Jun 2009
    Location
    Ontario, Canada
    Posts
    1,038
    with a meter... duh. single throw or double throw?
    Parts Changer Extraordinaire
    ------------------------------------------------------
    Have tools and gauges, will travel.

    RIDGID|YELLOW JACKET|UEI|TESTO|STANLEY|CPS|VETO| KLEIN|MILWAUKEE|MASTERCRAFT|

  5. #5
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,326
    I look for a voltage drop across the closed contacts.

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