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  1. #1
    Join Date
    Jul 2011
    Location
    Lehigh Valley, PA
    Posts
    430

    Additional coiled vapor & liquid lines rolled up on rooftop

    I found this very recently installed equipment on a rooftop today at my employers site. Two condensing units for walk in's both tubed the same way. Why wouldn't the installing tech cut back the extra tubing? Only one unit showing in this picture but there were two. Both walk-in's are in service and working good for the moment. And he left his trash up there too. And yes, the roof is collecting water, this is an additional issue.

    Is this a new method? Is this even acceptable? What issues might this create in the coming months & years?
    Attached Images Attached Images  

  2. #2
    Join Date
    Sep 2011
    Location
    Fayetteville, NC
    Posts
    130
    I'll keep on preaching. It only a sec to cut the excess off, swag, rebraze and vacuum and a quick blast of refer to break the vac before you make the connections.. Keep the copper to up the profit for your truck and/or scrap it. Depending on how high the condensor is above the evap I would say that poor oil return may cause premature compressor failure.

  3. #3
    Join Date
    Sep 2011
    Location
    Fayetteville, NC
    Posts
    130
    and in my opinion it looks sloppy. And the next tech that comes behind you that cares about his work is gonna think the same think.

    Imagine if you got a new shingle roof and the roofer didn't trim the edges so they were all the same. He could say that it will still perform as it was designed to and your roof is fine.. Another roofer that takes pride in his work says, "That looks like s*it.

    And yes I know that some manufacters say that the coil can be put below the condensor is a lazy downward spiral. Manitowoc for instance. It still looks like poop.

  4. #4
    Join Date
    Apr 2001
    Location
    Over Here
    Posts
    1,105
    Those are pre-charged linesets with special fittings on either end that connect up to each unit. Cutting them would result in having to solder and break out the torches, nitrogen, and vacuum pump. That's too much work hauling that stuff up there and would mess up a slam-bam install. Beer-thirty starts when cold air is a' blowin!

    Kind of obvious here, isn't it? Don't get too down about this.... There are still craftsmen out there who take pride in their trade. One of them just posted a reply in your thread, lol.

  5. #5
    Join Date
    Jun 2005
    Location
    Las Vegas NV
    Posts
    1,152
    After a few years the liquid line will leak due to it rubbing together. I repaired quite a few of these in the 80's in Atlanta.

  6. #6
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    I seen this recently & even posted in the w.o.s. ... I don't get it & the majority will agree about cutting back the lines. Some people just don't care about anything but getting in, out & paid.

    Sent from my HTC Sensation 4G using Tapatalk 2

  7. #7
    Join Date
    Dec 2000
    Location
    Flat Rock, NC
    Posts
    463
    I to cut the lines, but I think it is crap that they do not have access fittings and you "lose" the charge on the line. Then you have to install fittings to evac and pre-charge. Last install netted me 200' of line sets.

  8. #8
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,587
    At least they laid them flat. I've seen them laid upright in ceilings. Where did all the oil go?
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  9. #9
    Join Date
    Jul 2010
    Location
    So-Cal
    Posts
    579
    Well at least they zip tied them togather! That should hold.

  10. #10
    Join Date
    Aug 2010
    Posts
    2,669
    I don't see what the big deal is. What difference does it make from functional stand point compared to that unit being away by however many feet of coiled tubing and the tubing is laid out flat under the roof?

    You can't not have refrigeration while roof is getting worked on and if the unit is where until the intended spot is clear to use, I don't know why its a big deal.

  11. #11
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    Just looks like sh!t i.m.o

    Sent from my SCH-I800 using Tapatalk

  12. #12
    Join Date
    Aug 2010
    Posts
    2,669
    Quote Originally Posted by hvac wiz 79 View Post
    Just looks like sh!t i.m.o

    Sent from my SCH-I800 using Tapatalk
    Who are you trying to impress? If there is no technical or safety issues, let it be.
    If there was a plan for future relocation, what they did was a brilliant idea.

  13. #13
    Join Date
    Aug 2012
    Location
    Palmyra, Missouri, United States
    Posts
    224
    We are professionals. We expect professional pay so we shall give professional work. Tired of laziness. If they were smart they should move the unit to a dry location.

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