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Thread: new refrig.

  1. #1
    Join Date
    Aug 2004
    Location
    Des Moines, IA
    Posts
    76

    Hmm

    Cap tubes plugged from new refrigs, 404a, 134a, 409a. Generally after High discharge episode.

  2. #2
    Join Date
    Feb 2004
    Posts
    126
    and your point would be what? if you keep the condensor clean you wont have many problems.....you bake the oil and then it clogs the tubes. whats new?

  3. #3
    Join Date
    Sep 2001
    Location
    East Stroudsburg, PA
    Posts
    13,215

    Hmm

    Is there a question in here somehere????

  4. #4
    Join Date
    Jul 2001
    Location
    Gold Coast of Connecticut
    Posts
    4,545
    Tadaa..........maintain it and it works?

  5. #5
    Join Date
    Feb 2004
    Location
    Medford Oregon
    Posts
    807
    from what I have heard, it is the POE lubricant not the gas

    at high temps polymer drops out from POE, the stuff is too fine for driers to pick up. It drops out of suspension at pressure drops (TXV, cap tubes, etc.)

    a more refined POE has been developed that eliminates this problem, but many months before available.

    Many guys are replacing the POE with Alkabenzyne and claim it solves the problem (high temp 134a only)

    I have gotten the preceding comments from highly reliable sources, but I have no firm undisputed examples. I am not Dan Rather. I do know 2 large resturant equipt suppliers that routinely drain POE and replace with Alkabenzeyne and Shrieve Chem (makers of Zerol A/B) claim it works well in high temp 134a systems.

  6. #6
    Join Date
    Sep 2001
    Location
    East Stroudsburg, PA
    Posts
    13,215
    Synthetic alkylates, and even MOs will work with HFCs on most small, close soupled systems. I've done it a few times, with no adverse effects.

    I wouldn't do it on anything with a long piping run, nor would I even consider it on a compressor that has an oil pump, though.

  7. #7
    FYI,
    I've also been told that manufactures are having problems with the POE oils off the lines. They are getting moisture in the systems right on the production lines so it is possible to have plugged cap tubes on new systems!!

  8. #8
    ahc&r's comment about plugged cap tubes, jogged my memory about something I had read in the NEWS. I went thru my big stack and found the comment in the Nov 4, 2002 edition on page 16. The guy that wrote in to the NEWS talks of having wide spread problems with cap tubes plugging, and quote-"we began using Sporlan C-052S driers. This almost eliminated the problem". Anyway, I thought I would mention this as this problem has been around for a while now and this contractor had good results with this drier.

  9. #9
    Join Date
    Mar 2004
    Location
    NJ
    Posts
    1,214
    westcoast refer man-"...jogged my memory about something I had read in the NEWS. I went thru my big stack and found the comment in the Nov 4, 2002 edition on page 16."

    With memory like that you should be on jeopardy. That's scary.
    thehumid1-------I live in NJ, a state where it's free to come in but you have to pay to leave!

  10. #10
    Usually on the cap tube systems they use a loose-fill copper-spun drier. These do an inadequate job of keeping the system clean. I would recommend using a Sporlan
    C-032-CAP-T to prevent this from happening and to clean up an existing system.

  11. #11
    I need some west coast reefer........man!!!!!!!
    Hey cockroach, don't bug me!

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  12. #12
    My new fridge has only like 3 oz of 134 in it??Weird, and no condenser to clean??
    Hey cockroach, don't bug me!

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  13. #13
    Join Date
    Feb 2004
    Posts
    126
    Diceman has to bring a household refrigerator in the picture.......we dont mess with them....only commercial refrigeration here.

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