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  1. #1
    Trane makes 3 hard start kits which comprise of a cap and a potential relay..
    BAYKSKT257,258,259,260
    My scroll compressor unit calls for a 260 but the supplier gave me a 257. Claims this will work but I'm not so sure about this one. I believe the cap is OK but wouldnt the potential relay have a different voltage setting (pickup and dropout) for a scroll compressor? Any help would be appreciated.

  2. #2
    Join Date
    Aug 2006
    Posts
    26
    hard start on a scroll? i thought you only use them on recip's with a TXV

  3. #3
    Join Date
    Mar 2006
    Location
    OK
    Posts
    2,144
    The 60 is used for scrolls when you get light dimming on startup. That is the primary reason for using a hard start kit on scrolls. I haven't heard of using the 57 on them but scrolls so seldom need a start kit that we've had a 60 when needed.
    Never knock on Death's door. Ring the bell and run, he hates that.

    Views expressed here are my own and not neccessarily those of any company I am affiliated with.

  4. #4
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Some mfgs call for them in larger tonnage when loading is an issue.

  5. #5
    Specifications for the models you referenced:

    BAYKSKT257: 135mfd x 330 cap, relay 35amp coil, 239volt pick up, 135volt dropout on relay

    BAYKSKT258: same cap, 35amp coil, 223v pick up, 152v dropout on relay

    BAYKSKT259: same cap, 35amp coil, 204v pick up, 150v dropout on relay

    BAYKSKT260: same cap, 50amp coil, 153v pick up, 115v dropout on relay

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