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  1. #1
    Join Date
    Jan 2016
    Posts
    1
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    York YCAS discharge superheat

    Hello, anyone out there run across the old r-22 YCAS chillers with the discharge superheat in the 50-75* range?

  2. #2
    Join Date
    Mar 2005
    Posts
    801
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    whats suction SH?
    Keep it simple to keep it cool!

  3. #3
    Join Date
    Dec 2014
    Location
    New Mexico
    Posts
    456
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    Verify the sensors. Do you have enough load to keep gas flow up.

  4. #4
    Join Date
    Feb 2012
    Location
    EVERYWHERE
    Posts
    236
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    Yes is This a issue to you?

    Quote Originally Posted by Mr.York2088 View Post
    Hello, anyone out there run across the old r-22 YCAS chillers with the discharge superheat in the 50-75* range?

  5. #5
    Join Date
    Feb 2015
    Posts
    4
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    My experience with these units is if the discharge superheat falls anywhere between 50-80 is good. I have a whole fleet of these bad boys. Great Machines! Do you have the 100 or 200 ton version?

  6. #6
    Join Date
    Oct 2010
    Posts
    232
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    Where do your evaporator liquid sightglass
    Levels normally operate at on these machines 50% ?
    I've found that the levels can fluctuate greatly depending on load
    If you can shed some insight on this I'd appreciate it

  7. #7
    Join Date
    Feb 2015
    Posts
    4
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    Quote Originally Posted by Dilp172 View Post
    Where do your evaporator liquid sightglass
    Levels normally operate at on these machines 50% ?
    I've found that the levels can fluctuate greatly depending on load
    If you can shed some insight on this I'd appreciate it
    Not really sure what you are referring to as the evaporator sight glass. These machines have DX barrels. The refrigerant runs through tubes in the barrel. Let me have a little more detail. These machines have oil separators with sight glasses and liquid line sight glasses...

  8. #8
    Join Date
    Dec 2014
    Location
    New Mexico
    Posts
    456
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    He is asking about the YVAA chillers VSD driven screws with R-134. There is a sight glass on the side of the evap. exchanger , runs a flooded state like a water cooled cent. chiller.


    Sent from my iPhone using Tapatalk

  9. #9
    Join Date
    Oct 2010
    Posts
    232
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    My mistake , I thought it was a water cooled flooded screw machine

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