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Thread: Slow Recovery

  1. #1

    Cool Slow Recovery

    This is just a tech tip.

    We have 103 degrees temps, trying to recover a 100 pound system. It just isnt pulling. Shut off the fans on a four stage, two compressor r-22 McQuay DX system.

    Pressures on the guages are fine... looking at recovery,,,50 in,,, 450 and climbing tripping out.... what the?!

    I can barely crack the hoses on either side and same scenario...shut down recovery unit....

    Checked hoses,,,all purge fine.... finally changed out hose set to the recovery unit and BADOW! could open up both full bore with no problem.

    Hose restriction causing a huge delay and now I am going to buy me a new set of hoses. Yea me!

    Remember that one in the back of your heads and save ya some time.

    -----------------
    Fix it like it was the last A/C unit on earth.

  2. #2
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    I like packing the recovery cylinder with ice, we have a giant ice machine at the shop and plenty of man power to get it where it needs to go. Good catch though.

  3. #3
    Join Date
    Jan 2007
    Location
    Charm City--the city that bleeds
    Posts
    2,790
    saw a product in the supply house that looks like a bubba keg made of 3/8" copper coiled, which when hooked (hoses) between the recovery outlet and the cylinder is designed to reduce the pressure. It had some snake oil name, like molecular hydoofinator, or some such slovo.
    The instructions recommended placing the bubba keg in ice. Why not just place one's recovery cylinder in ice and skip the hydoofinator?
    Just sayin'
    It's great to be alive and pumping oxygen!

  4. #4
    Join Date
    Jul 2012
    Location
    portland
    Posts
    4
    i made a subcooler using 3/8 soft drawn copper. rolled it around an oxy bottle throw it in a 5 gallon bucket with ice water. wah la

  5. #5
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,725
    Quote Originally Posted by The Doctor View Post
    saw a product in the supply house that looks like a bubba keg made of 3/8" copper coiled, which when hooked (hoses) between the recovery outlet and the cylinder is designed to reduce the pressure. It had some snake oil name, like molecular hydoofinator, or some such slovo.
    The instructions recommended placing the bubba keg in ice. Why not just place one's recovery cylinder in ice and skip the hydoofinator?
    Just sayin'
    I remember at my last job we had a orange cooler that was special made to accept a 50 lbs recovery tank. You would throw some ice in there and the drum stays cool. I haven't seen them since.
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

  6. #6
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,957
    Quote Originally Posted by The Doctor View Post
    saw a product in the supply house that looks like a bubba keg made of 3/8" copper coiled, which when hooked (hoses) between the recovery outlet and the cylinder is designed to reduce the pressure. It had some snake oil name, like molecular hydoofinator, or some such slovo.
    The instructions recommended placing the bubba keg in ice. Why not just place one's recovery cylinder in ice and skip the hydoofinator?
    Just sayin'
    Because then, they couldn't charge you an arm and a leg for a hydoofinator...


  7. #7
    Join Date
    Oct 2003
    Location
    Florida's space coast
    Posts
    2,538
    Here is the one that I built, works like a charm.
    Attached Images Attached Images   
    We've been doing so much,for so long,with so little, that now we can do almost anything, with nothing at all.

  8. #8
    Join Date
    Jan 2008
    Location
    Dallas ,Texas
    Posts
    3,725
    Quote Originally Posted by a\c don View Post
    Here is the one that I built, works like a charm.
    This is what I built.
    Attached Images Attached Images  
    UA 100

    It takes three people to do anything around here. Two do the work, one explains to the crowd of people who showed up when they seen smoke and flames.

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