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  1. #1
    Join Date
    Oct 2008
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    Hanging low-temp evap from unistrut?

    I've seen this done before on coolers, but before I personally do it I wanted to check with others.

    I have a WIF that needs a new Evap, and drilling new holes through the ceiling would be difficult because that's right where the condensing unit sits. (On a giant steel base)

    I was going to use shallow unistrut and tie into the existing fasteners if possible, and then hang my new evaporator.
    Because this is low temp, will there be any issues because of the 1" air gap above the evaporator? (Defrosts, hot moist air rising to the ceiling, etc)

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  3. #2
    Join Date
    Aug 2002
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    3/4" Polystyrene prevents that!
    or
    sandwich the mounts above the uni-strut!

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  5. #3
    Join Date
    Jan 2016
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    Good thinking pecmsg.

    I’ve seen low temp evap coils hung from unistrut many times but I haven’t noticed any extra problems.

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  7. #4
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    Aug 2002
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    I've used 3/8" X 1/2" sheet metal screws.

    Risky but put extras in thru the top of the housing into the ceiling!

    At least i dont think they fell!

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  9. #5
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    Quote Originally Posted by pecmsg View Post
    I've used 3/8" X 1/2" sheet metal screws.

    Risky but put extras in thru the top of the housing into the ceiling!

    At least i dont think they fell!
    And use liquid nail.

  10. #6
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    Quote Originally Posted by lytning View Post
    And use liquid nail.
    Never thought of that!

  11. #7
    Join Date
    Dec 2015
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    Craig, CO
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    Use the strut. Should not create any issues. Would not recommend the above recommendation with sheetmetal screws and liquid nails if avoidable.

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  13. #8
    Join Date
    Jan 2010
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    Quote Originally Posted by pecmsg View Post
    Never thought of that!
    You'll need an air chisel when it's time to replace it. If your lucky and the new one is exactly the same I suppose you could leave the top though.

  14. #9
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    Oct 2008
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    Thread Starter
    Thanks guys, I'll skip the liquid nails and sheet metal screws for now.

  15. #10
    Join Date
    Apr 2003
    Location
    Maple Grove, MN
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    I would skip pecmsg's foam sheet above the evap idea too. I'm thinking that has be a health code violation of some type. Unless you're using NSF food grade polystyrene.

    The thin strut with a small gap between the ceiling and the coil shouldn't hurt anything. Sometimes you gotta do what you gotta do.
    If at First You Don't Succeed, Skydiving Is Not for You.

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  17. #11
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    Quote Originally Posted by VTP99 View Post
    You'll need an air chisel when it's time to replace it. If your lucky and the new one is exactly the same I suppose you could leave the top though.
    I'll call Mr. Skills!

  18. #12
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    Mar 2015
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    Hamersville, Ohio
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    Quote Originally Posted by lytning View Post
    And use liquid nail.
    Lytning, Liquid nail worked? Were You able to see the results, say after a year of operation?

  19. #13
    Join Date
    Jan 2010
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    Quote Originally Posted by Jared Fetter View Post
    Thanks guys, I'll skip the liquid nails and sheet metal screws for now.
    Out of curiosity, how much/ different is the new footprint ?

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