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  1. #1
    Join Date
    Feb 2004
    Location
    Brooksville, FL
    Posts
    27

    Plenum loose close to wall

    I have a 7.5 ton Trane air handler in a janitor closet. The tape joint at the plenum is flapping in the breeze on the back side of the air handler. There is only about 2-3" clearance between the A/H and the wall.

    Looking for advice on how to retape/seal that joint. I can only reach about 6" on either side of the A/H and with it leaking the tape is not wanting to restick. Thanks.

  2. #2
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,078
    Shut the unit off and retape it.


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  3. #3
    Join Date
    Feb 2004
    Location
    Brooksville, FL
    Posts
    27
    The question is more directed at how do I get tape across the 4' width of the plenum, and get it to stick well, when it is so close to the wall.

  4. #4
    Join Date
    Apr 2006
    Location
    Barrie Ontario
    Posts
    318
    3/8 copper or something similar maybe drive cleet unroll tape to desired length stick to one end, fish behind the unit well keeping it tight to the wall stick to plenum, line up the other side and stick it

  5. #5
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,078
    Quote Originally Posted by thelmuth View Post
    The question is more directed at how do I get tape across the 4' width of the plenum, and get it to stick well, when it is so close to the wall.
    That is where you have to get inventive.


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  6. #6
    Join Date
    Feb 2006
    Location
    FL
    Posts
    565
    like turkey said. what i do is also double up the tape so its about 3 or 4 inches wide so its more stable when you stretch it out.

  7. #7
    Join Date
    May 2013
    Posts
    49
    Get a piece of patch metal maybe 24x24 cut a nice hole in the center of the front side of the plenum crawl in and repair/seal from the inside use duct seal not tape. Then your leak is right in front of you and easy to deal with.

  8. #8
    Join Date
    Jul 2011
    Location
    East coast USA
    Posts
    954
    Quote Originally Posted by northeastnewbie View Post
    Get a piece of patch metal maybe 24x24 cut a nice hole in the center of the front side of the plenum crawl in and repair/seal from the inside use duct seal not tape. Then your leak is right in front of you and easy to deal with.
    Thats thinking inside the duct!

  9. #9
    Join Date
    Sep 2006
    Location
    Ohio
    Posts
    456
    Get a piece of duct wrap and slide it between the wall and the duct. Then wrap it around the duct with the seam in the front. If you go over the existing insulation, I think it will keep it from getting wet.

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