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Thread: RTAA-300 LEAK

  1. #1
    Join Date
    Jul 2009
    Posts
    31

    RTAA-300 LEAK

    Hey guys just wanted to throw this one out there. I put lip seal by passes on a & b compressors,on circuit 1. I started to fill with nitrogen for a 3 time evacuation but kept losing pressure , looked and looked with soap bubbles, honestly I was getting ready to punt, finally found the leak, my question to you all (where was it?) Hint: It was not in any fittings . Tim

  2. #2
    Join Date
    Aug 2000
    Location
    USA
    Posts
    4,995
    Tube sheet? Compressor casting?
    Your poor planning does not constitute an emergency on my part!!!!

  3. #3
    Join Date
    Nov 2007
    Location
    I am unsure myself
    Posts
    1,116
    My guess on your guages

  4. #4
    Join Date
    Aug 2009
    Location
    Seattle Area
    Posts
    58
    The most frustrated I've been yet with a leak repair was an EXV on an RTAA leaking at the electrical connections.............at the terminal board midway on the machine!!

  5. #5
    Join Date
    Jul 2009
    Posts
    31

    answer

    At the electrical terminal on the motor, 6 studs coming out of motor, all where loose,tightened ,problem leak gone. I think I also age a few years in the process. Tim

  6. #6
    Join Date
    Mar 2005
    Location
    Indiana
    Posts
    159
    That is the most common and first place to look on a RTAA. You don't want to just tighten them you want to rework them with the new insulator and o-ring design. If you megged the motor it would probably meg low due to rust under those original insulators.

  7. #7
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,100
    If the insulators are square then you should replace with the new style rounded ones . They shed the condensation better and prevent the corrosion between the insulator and the terminal plate and the leaks that go with that corrosion.
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    Best Austin Healey In Show twice in 2013 .....All those hrs paid off .

  8. #8
    Join Date
    Jul 2009
    Posts
    31

    Humbled

    Thanks , I very much wecolme the input. These units are only 11 years old ,do all the chillers you guys work on have as many problems and need as much updating as these rtaa-300 and what is your honest opinion of them ? And Who makes the best chiller ? Thanks Tim

  9. #9
    Join Date
    Jul 2009
    Posts
    31

    Long year

    Well it looks like I will be back at it.

  10. #10
    Join Date
    Apr 2004
    Location
    Lombard, IL
    Posts
    29
    Trane still makes the best chiller Tim. We have outstanding products. Any rotary compressor is going to have the same issues whether it is made by trane or not. Its mechanical and things break. Yes it is hard to stop a trane. Not impossible.

  11. #11
    Join Date
    Jan 2009
    Location
    Not in Iran
    Posts
    1,107
    i enjoy working on the rtaa., and espscially on the cvhe and f.,
    also ., i just bought a digital megger., is anyone famuliar with these., of course is made in china.,
    any input

  12. #12
    Join Date
    Feb 2010
    Location
    MEXICO
    Posts
    475
    TUBING ECONOMIZER

  13. #13
    Join Date
    Aug 2006
    Location
    Mixing oil and fire with a big spoon.
    Posts
    4,493
    Quote Originally Posted by servicetrane View Post
    TUBING ECONOMIZER
    what?
    "If you pull one more stunt like you just pulled with Tommy, you won't have to get on a plane because I will personally kick your ass from here to Korea!" - Best of the Best

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