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  1. #1
    Join Date
    Jun 2012
    Posts
    9

    Trane XL 16i 5 Ton installed yesterday

    I just had a Trane XL 16i 5 Ton installed yesterday, and I don't think my installer used the right vapor line size. The installation manual says to use 1-1/8 vapor line and I have what I think is a 3/4 inch line. Will this make any difference in performance, efficiency?

    Should I ask him to use the correct vapor line size?

    Thanks for your reply

  2. #2
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    1- 1/8 for what length of run..... 10 feet different than 60 ...
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  3. #3
    Join Date
    Jun 2012
    Posts
    9
    I think it is probably somewhere between 10-15 feet.

    Thanks for your help

  4. #4
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    I would of installed 7/8 ..you will be fine in my opinion
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  5. #5
    Join Date
    Jun 2012
    Posts
    9
    ok. Thank you. Do you think the smaller line would compromise my new systems ability to cool the house? I paid more $ for a 16 SEER and want to be sure I get what I paid for.

    Also, do you know what temperature the air coming into my house should be (about)?

    Thanks - you have been very helpful.

  6. #6
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    your suction line is fine.... you should have between 15 and 18 degrees difference from return to supply.....
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  7. #7
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,060
    Quote Originally Posted by Wabey View Post
    I just had a Trane XL 16i 5 Ton installed yesterday, and I don't think my installer used the right vapor line size. The installation manual says to use 1-1/8 vapor line and I have what I think is a 3/4 inch line. Will this make any difference in performance, efficiency?

    Should I ask him to use the correct vapor line size?

    Thanks for your reply
    Your line size should be 7/8th and 3/8th

    with a maximum length of 80 feet and a max vertical lift of 25 feet.

    What is the document # that you read 1/1/8th for the suction?

  8. #8
    Join Date
    Jun 2012
    Posts
    9
    Its in the Installer's guide (Trane) 18-AC86D1-4 for Condensing units 4TTx6.

    Ok. A dumb question...how can I easily measure vapor line diameter (for a newbie)?

    THanks

  9. #9
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    measure the o.d. of the pipe .... callipers come to mind
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  10. #10
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,320
    Wabey, Made this its own thread. Your not allowed to post in other peoples threads in the AOP forums.
    Contractor locator map

    How-to-apply-for-Professional

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

  11. #11
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    to answer the op question
    you will lose btu output of the unit i tend to think about 3 to 4 thou but
    you eff will be the same for the most part

    i would recomend you have them increase the size of the lines to 1 1/8 / 3/8
    so you will get the most of your unit when all of its output is needed

  12. #12
    Join Date
    Jun 2012
    Posts
    9
    beenthere!

    My apologies. I could not find how to post new thread....but everyone has been very helpful! Very

  13. #13
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    oh man ...... 7/8 is plenty ....where you pulling this info from..... cause it is wrong
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

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