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  1. #14
    Join Date
    May 2009
    Location
    In the Hudson Valley of New York
    Posts
    1,945
    So I stopped in again after the 12 PM defrost, coil was totally clear, spoke to the owner and recommended the curtains and he is all for it. So where can I get these from?

  2. #15
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,723
    Quote Originally Posted by EugeneTheJeep View Post
    So I stopped in again after the 12 PM defrost, coil was totally clear, spoke to the owner and recommended the curtains and he is all for it. So where can I get these from?
    What curtains?

  3. #16
    Join Date
    Aug 2010
    Location
    Garland, TX
    Posts
    39
    I don't know whay brand your cas is. Look online, i have seen them on structural concepts cases and many other brands. I will look as well to see what i can find. The usually call the "night curtains". Almost like a window shade but they usually have a slight perferation to them.

  4. #17
    Join Date
    May 2009
    Location
    In the Hudson Valley of New York
    Posts
    1,945

  5. #18
    Join Date
    Aug 2010
    Location
    Garland, TX
    Posts
    39
    sorry for my typos, was using a smart phone and it was late.

  6. #19
    Join Date
    Aug 2010
    Location
    Garland, TX
    Posts
    39
    Quote Originally Posted by EugeneTheJeep View Post
    Thats the ones I have seen and used, thanks for the link. These are perfect, I have seem some mylar style as well. But this site looks great!

  7. #20
    Join Date
    Mar 2004
    Location
    Las Vegas, Nevada
    Posts
    1,647
    Open air cases will sometimes ice up at irregular intervals, based on when nearby HVAC Supply Air Ducts are 'washing out' the case air curtain. Especially when the HVAC is Calling for Heating. It's possible you don't have a Refrigeration problem.
    The views and opinions posted here are my own. They do not reflect the corporate policies of my employer and will most likely get me fired at some point.

  8. #21
    Join Date
    May 2009
    Location
    In the Hudson Valley of New York
    Posts
    1,945
    Quote Originally Posted by engineerdave View Post
    Open air cases will sometimes ice up at irregular intervals, based on when nearby HVAC Supply Air Ducts are 'washing out' the case air curtain. Especially when the HVAC is Calling for Heating. It's possible you don't have a Refrigeration problem.
    Right, no sense in over analyzing this, it is a one time thing, and the coil defrosts just fine. Of course when you question was the door open the day of the freeze up, you just get a big NO? The customer is a great guy to work with, and he is all cool with it may be a fluke, and may happen again. Plus I get the sale of the night curtains on a 48', 12', and 36' case. So that will be some good money$$$$$$$$$$

  9. #22
    Check insulation on your suction line

  10. #23
    Join Date
    Feb 2004
    Location
    British Columbia, Canada
    Posts
    527
    [QUOTE=EugeneTheJeep;14760341
    Drains run clear, verified by hot water defrost.[/QUOTE]

    Did you confirm the P-trap is full of water and not allowing the influx of moisture laden air into the bottom of the case?
    I have seen cracked P-traps leak out into the transit or underneath the case not visible unless you look behind the kickplate. Defrost water fills trap, trap leaks out in 30 minutes, reverse airflow from drain water venting pulls moisture into case
    Some traps have a drainplug/cap on the bottom for cleanout. They can also leak there if not tight.


    Just something extra to check...

  11. #24
    Join Date
    Dec 2000
    Location
    Auburn, New York
    Posts
    241
    If there is no problem with the refrigeration I.e. leak, bad heaters etc. I would try a ke2 controller. Much better defrost. http://www.ke2therm.com/
    once you think you know everything, you'll never learn another thing!

  12. #25
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,191
    This more than likely has a head master .... are you familiar with charging this kind of setup in winter ?

    If someone worked on this unit during summer, and charged it by " sight glass " it would run fine all summer , but they didnt charge it properly for winter.

  13. #26
    Join Date
    May 2009
    Location
    In the Hudson Valley of New York
    Posts
    1,945
    Quote Originally Posted by koolkahuna View Post
    Did you confirm the P-trap is full of water and not allowing the influx of moisture laden air into the bottom of the case?
    I have seen cracked P-traps leak out into the transit or underneath the case not visible unless you look behind the kickplate. Defrost water fills trap, trap leaks out in 30 minutes, reverse airflow from drain water venting pulls moisture into case
    Some traps have a drainplug/cap on the bottom for cleanout. They can also leak there if not tight.


    Just something extra to check...
    That sounds like a good idea, however the case still is running fine. But it is something I will check next time. It only froze up that one balmy fall couple of days where it rained heavy?


    Quote Originally Posted by Snapperhead View Post
    This more than likely has a head master .... are you familiar with charging this kind of setup in winter ?

    If someone worked on this unit during summer, and charged it by " sight glass " it would run fine all summer , but they didnt charge it properly for winter.
    Been working in cold climate for 30 years, so it is not my first. The unit is charged to receiver capacity.

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