Results 1 to 9 of 9
  1. #1

    AGZ 160 Mcquay chiller

    Discharge line breaking at hot gas tee
    anyone seen this before??

  2. #2
    Join Date
    Feb 2003
    Location
    Wichita Ks
    Posts
    1,457
    yep

  3. #3
    Quote Originally Posted by freonrick View Post
    yep
    Was any reason determined for the cause of the breakage?

  4. #4
    Join Date
    Jul 2013
    Location
    Illinois
    Posts
    33
    Vibration ???????

  5. #5
    Join Date
    Oct 2001
    Posts
    6,945
    moving it away from the compressor might solve the problem just before it goes into the condenser.Trane RTAAs had a discharge relief valve brazed into the discharge elbow right off the service valve and they all cracked from heat and vibration over the years.any taps made on a discharge line near the compressors with most units will leak from the heating during factory installs
    "when in doubt...jump it out" http://www.youtube.com/watch?v=U1qEZHhJubY

  6. #6
    Join Date
    Jul 2013
    Location
    Illinois
    Posts
    33
    York ycas had same issues with factory weld cracking after 6-12 months, vibration on screws is bad enough, replaced fittings and added more piping vibration clamps. Never been to big of a fan of simply installing vibration eliminators, if the vibration is not addressed then that also becomes a future leak.

  7. #7
    Join Date
    Feb 2003
    Location
    Wichita Ks
    Posts
    1,457
    the ones I have found always had a bad compressor, excessive vibration. those tee's and related piping were all from Copeland.

  8. #8
    Join Date
    Jul 2013
    Location
    Illinois
    Posts
    33
    Yes you are right, I think my mind is somewhere else, it was scrolls. And yes it did have a connection to failed compressor, both before and after..

  9. #9

    Thanks for everyone's input

    Quote Originally Posted by maxster View Post
    moving it away from the compressor might solve the problem just before it goes into the condenser.Trane RTAAs had a discharge relief valve brazed into the discharge elbow right off the service valve and they all cracked from heat and vibration over the years.any taps made on a discharge line near the compressors with most units will leak from the heating during factory installs
    Thanks for everyone's input it is on Copeland scroll compressors manifolded, I will try moving the tee away from the compressors and closer to the condenser.
    All compressor test fine, but unable to test vibration due to nothing to compare to.

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