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Thread: Trane unit size

  1. #1
    Join Date
    Sep 2011
    Location
    Tempe, AZ
    Posts
    18

    Trane unit size

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    I have a 24 year old Trane roof top that I can not find any info as to the size. Building owner wants a quote for repair and replacement of the unit. Plate is long gone, only numbers could get was from the compressor. Called Trane and asked a few other old timers and no luck so far. Compressor model # is 21CT72HN3A. Serial B0353239. I believe it is a 7.5 ton, but not sure. Any help would be great!

  2. #2
    Join Date
    Aug 2008
    Posts
    91
    If you could post a picture of it maybe someone might recognize it and go from there. If your going to replace it doesn't matter what it is. Also a newer unit is probably going to be a lot more efficient then the old one due to advances made in technology.

  3. #3
    Join Date
    Sep 2011
    Location
    Tempe, AZ
    Posts
    18
    No picture, sorry. I was just wnating the tonnage of the existing unit so I could work up a replacement quote for the compressor. The building owner has to have both options (repair/replace) as part of the sale of the building so the new owner and him can work out what they are going to do. 24 year old rust bucket rooftop is a no brainer, but have to fulfill the request.

  4. #4
    Join Date
    Jul 2001
    Location
    maryland
    Posts
    1,353
    are you sure that's the correct serial #?
    Saving the world...one service call at a time.

  5. #5
    Join Date
    Sep 2011
    Location
    Tempe, AZ
    Posts
    18
    Quote Originally Posted by mallron View Post
    are you sure that's the correct serial #?
    Yes, it is an old Weathertron unit. Serial # is off the compressor.

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