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  1. #1
    Join Date
    Sep 2012
    Location
    New York
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    174

    Continental Call Back Box of the year

    Working on a refrigerator 2 door continental with the condiment top, R-134 A. A fellow tech replaced a compressor, captube and drier and blew the lines out or so he says. A week later went back and replaced the drier he, found it restricted. I followed up to work on the box unit running warm low on gas, pressurize with nitrogen no leak found cut back on cap tube 1.5 inch, replace drier(CLEAN DIRTY CONDENSOR!!!) Did a triple evac after finding no leaks on my joints. Pulled around 300 microns on this system. A week later another tech went back and found a restricted drier. He called up continental and they told him to drill a hole in the receiver, isolate the evap and blow it out often oil gets trapped in there and its a good process to do after a burnout. He added a pigtail fitting to evap did as they told him and box is working fine now. Has anyone ever encountered this? The tech also stated when 134 gets extremely hot say from a really dirty condensor coil it often turns into oil due to high temp? if this is true why?

  2. #2
    Join Date
    Mar 2013
    Location
    swan valley idaho
    Posts
    727
    Hopefully you mean accumulator. Cap tubes can't have a receiver and work properly.
    The Poe oil is what needed flushed from overheating. 404 will do the same thing, it's the old oil.

  3. #3
    Join Date
    Sep 2012
    Location
    New York
    Posts
    174
    yes i do, haha thats what happens when I wake up too early and jump on the forum. So the oil just breaks down?

  4. #4
    Join Date
    Jan 2008
    Location
    In the work truck
    Posts
    2,999
    What I have learned is the oil actually turns into a wax like consistency.. I usually install an oversized drier in and stay away from the copper spun driers. Sporlan has a drier to help with this situation I believe.

    Next time I would take that accumulator out and tip it over to see if there is a lot of oil in there..

    How bad was that condensor when you went back? I wonder IF the head was high enough to screw up the oil with the new compressor..
    Gotta have the right tool for the job!

    Where is all the stuff MADE IN THE USA?

    "Thats what we do Troy. Incredible, Invisible, Imbelivable things. We are an Unseen, Unknown, Unvincible fraternity of craftsman.."

  5. #5
    Join Date
    Sep 2012
    Location
    New York
    Posts
    174
    Yeah I wish I was the tech who went back to see if the accumulator had a lot of oil in it. Lets just say the tech before me who weighed in charge immediately ran in a vaccum after I cleaned the condenser, it very well could have been... That's crazy a wax consistency, yeah you could oversize the drier but then you'd just need to compensate and add more charge. I had a 0-32 cap tube sporlan drier on it. How big have you gone on a small system like that?

  6. #6
    Join Date
    Jan 2008
    Location
    In the work truck
    Posts
    2,999
    Quote Originally Posted by AllStateTech View Post
    Yeah I wish I was the tech who went back to see if the accumulator had a lot of oil in it. Lets just say the tech before me who weighed in charge immediately ran in a vaccum after I cleaned the condenser, it very well could have been... That's crazy a wax consistency, yeah you could oversize the drier but then you'd just need to compensate and add more charge. I had a 0-32 cap tube sporlan drier on it. How big have you gone on a small system like that?
    The Driers with HH on them have charcoal which will help remove that wax..

    This is what you want..http://sporlanonline.com/literature/40/40-337.pdf

    This is a mechanic in the fields letter...
    http://sporlanonline.com/literature/40/40-169.pdf
    Gotta have the right tool for the job!

    Where is all the stuff MADE IN THE USA?

    "Thats what we do Troy. Incredible, Invisible, Imbelivable things. We are an Unseen, Unknown, Unvincible fraternity of craftsman.."

  7. #7
    Join Date
    Mar 2013
    Location
    swan valley idaho
    Posts
    727
    the c032 cap-t is perfect. best bet is to make sure oil is flushed out well,then new drier and cap tube. yes- if it gets to hot it breaks down, leading to repeat failure if not cleaned up well

  8. #8
    Join Date
    Sep 2012
    Location
    New York
    Posts
    174
    Thanks for the info pascone! Yeah besides nitro is there any flush agent that is worthwhile in reefer systems ?

  9. #9
    Join Date
    Mar 2013
    Location
    swan valley idaho
    Posts
    727
    there are a few available at rsd, johnstone, etc.... add a little flush based on system size, then purge well with nitro to clear out flush.
    good after bad burn outs that nitro alone won't clean up also.Or for conversions to POE oil

  10. #10
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    488
    Quote Originally Posted by AllStateTech View Post
    Working on a refrigerator 2 door continental with the condiment top, R-134 A. A fellow tech replaced a compressor, captube and drier and blew the lines out or so he says. A week later went back and replaced the drier he, found it restricted. I followed up to work on the box unit running warm low on gas, pressurize with nitrogen no leak found cut back on cap tube 1.5 inch, replace drier(CLEAN DIRTY CONDENSOR!!!) Did a triple evac after finding no leaks on my joints. Pulled around 300 microns on this system. A week later another tech went back and found a restricted drier. He called up continental and they told him to drill a hole in the receiver, isolate the evap and blow it out often oil gets trapped in there and its a good process to do after a burnout. He added a pigtail fitting to evap did as they told him and box is working fine now. Has anyone ever encountered this? The tech also stated when 134 gets extremely hot say from a really dirty condensor coil it often turns into oil due to high temp? if this is true why?
    how many hours labor is on this unit for repairs?

    you have a model and serial number?

  11. #11
    Join Date
    Sep 2012
    Location
    New York
    Posts
    174
    I don't even want to know lol... Nope unfortunately it was a while back why have you had issues with continentals?

  12. #12
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    488
    Quote Originally Posted by AllStateTech View Post
    I don't even want to know lol... Nope unfortunately it was a while back why have you had issues with continentals?
    I'm reluctant to offer repairs to units of this style and cost as usually the repair costs are not justified when comparing the cost of a new unit.

    I've been burned by these in the past.

    good luck.

  13. #13
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,373
    Quote Originally Posted by indy2000 View Post
    I'm reluctant to offer repairs to units of this style and cost as usually the repair costs are not justified when comparing the cost of a new unit.

    I've been burned by these in the past.

    good luck.

    I know of a well-known casual dining restaurant whose name is reminiscient of a 1960's Rolling Stones hit. They have a warehouse full of old, used equipment that they deliver to new stores to cut costs.

    Then, they have no maintenance.

    Then, they want you to repair the old junk, and then they complain about how much it costs.

    Penny smart, pound foolish.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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