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  1. #14
    Join Date
    Sep 2012
    Location
    Central Florida
    Posts
    880
    Seen A split like that on a r22 coil that was piped in to a 410a system. Blew out at around 390 psi when I went to test the high pressure limit switch.

  2. #15
    Join Date
    Jan 2011
    Posts
    593
    Keep going, theres some close ideas.

    No pressure switch. There was 3 of these splits in various places in the bottom 2 tubes.

    They said they thought it quit in the fall....

  3. #16
    Join Date
    Jun 2004
    Location
    Eugene, Oregon
    Posts
    1,018
    Defiantly the result of some internal pressure. A hydraulic force of some sort. Possibly liquid refrigerant pressure built up due to some sort of restriction in the outdoor coil.
    "The bitterness of poor quality remains long after the sweetness of low price is forgotten". --Benjamin Franklin
    "Don't argue with an idiot, they will drag you down to their level and beat you with experience". --Mark Twain
    http://www.campbellmechanical.com

  4. #17
    Join Date
    Jul 2002
    Location
    Centerville, Iowa
    Posts
    383
    OK I'll try, suction side leak lost all the refrigerant, vacuum on low side on compressor startup sucked in air, non condensable air in high side drove head pressure sky high, boom.

    I wouldn't think it would have taken out more than 1 spot though.

  5. #18
    Join Date
    Mar 2008
    Location
    20141
    Posts
    1,152
    It definitely looks like it happened from the inside out. Pressure is the only thing I can think of that would cause a clean slit like that. It's just a matter of what caused the excessive pressure. Is it electrically related?
    I am the Stig

  6. #19
    Join Date
    May 2013
    Location
    De Pere, Wisconsin, United States
    Posts
    33
    The suspense is killing me...

  7. #20
    Join Date
    Nov 2001
    Location
    Seattle, WA
    Posts
    7,756
    I saw an episode of an old This Old House program where a 1/2" water tube failed just like that. The guy cut the hard drawn burst piece out then cut the tube in half. Then he put it under a microscope where draw lines or groves were seen that were created and caused by the velocity of the water passing through the copper hard drawn lines. And this was just water.

    I'm betting the same thing happened here. And if it happened on that line the rest are soon to follow.
    "The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
    - Alexis de Toqueville, 1835

  8. #21
    Join Date
    Feb 2011
    Location
    Peoria, IL
    Posts
    2,149
    Quote Originally Posted by DeltaT View Post
    I saw an episode of an old This Old House program where a 1/2" water tube failed just like that. The guy cut the hard drawn burst piece out then cut the tube in half. Then he put it under a microscope where draw lines or groves were seen that were created and caused by the velocity of the water passing through the copper hard drawn lines. And this was just water.

    I'm betting the same thing happened here. And if it happened on that line the rest are soon to follow.
    If it looked like that on a water line it was a freeze split on this old house (ice push's out, i does not care if its easier sideways, every freeze up on a water line i have ever fixed looks the same (Tons) now in this coil i dont know, but its identical to a freeze split, and being all at the bottom of the coil where water would collect when unit is off since it was fall

  9. #22
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,874
    My guess the condensor fan motor failed and the thin copper gave out before the compressor's pressure relief opened. Or maybe it failed to open?

  10. #23
    Join Date
    Jan 2011
    Posts
    593
    Here is my guess... The cap tube that broke off inside was the start of the problem. The coil doesn't drain well at all. Sits right down on the floor and the drain runs horizontal for a ways.

    Figure the cap tube broke, lost all the gas.
    Compressor continued to run with the cap tube still broke off.
    Sucked in a ton of water.
    Pulled the water outside.
    Compressor finally gave up the ghost. Capacitor literally exploded.
    water settled in the bottom 2 tubes of the condenser coil.
    Winter got here and burst the tube in 3 places.

    Thats my best theory.

  11. #24
    Join Date
    Jan 2013
    Location
    Frederick, MD
    Posts
    52
    Do you really think the compressor would live long enough pumping water to accumulate that much water in the coil. For it to get in the condenser coil it would have to go through the compressor. Given the age I'm sure it's a reciprocating compressor and I have never seen one pump that much water that long.

  12. #25
    Join Date
    Jan 2011
    Posts
    593
    How else would you explain the water in the coil? Would have taken water to blow it out like that in 3 spots. Just the refrigerant pressure would have escaped from the first blow out, not 3 separate ones.

  13. #26
    Join Date
    Dec 2008
    Location
    Ontario Canada
    Posts
    543
    Massively over charged?

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