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Thread: YORK YK CHILLER

  1. #1
    Join Date
    Aug 2012
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    YORK YK CHILLER

    Hi all,
    i m currently facing a problem on this YKDFDFP65CKF YORK CENTRIFUGAL CHILLER,
    when the chiller hit the setpoint 6.5c it cannot unload smoothly. it giving fluctuate reading on the display ( %FULL LOAD AMPS ) and continuous surging sound . The reading for chilled liquid temp- leaving at 6.5c, return at 11.6c, condenser liquid temp- leaving at 34.9c,return at 29.6c.Is there anyone here can give me some advice what going on and what must do. thank :anyone

  2. #2
    Join Date
    Jan 2011
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    1,171
    What are the design conditions? Your conditions indicate it's a 10*F machine. Incidentally, since this is a USA based forum many will pass up questions that require they convert temperatures to fahrenheit. It would help if you converted them before you ask your question.

    If you go to the sales order screen it should tell you what the design conditions are. Generally speaking, when a machine starts surging the actual head has exceeded the design head. The other piece of information that may help is the small difference (approach) in the condenser and the evaporator. On the York Optiview they are reported as "small difference" on the evaporator and condenser screens.

  3. #3
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    Quote Originally Posted by KnewYork View Post
    Incidentally, since this is a USA based forum many will pass up questions that require they convert temperatures to fahrenheit.
    Yeah, KnewYork's right, I'm one of those lazy ones...

  4. #4
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    Aug 2012
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    My apologies. I'm situated in Singapore and all chillers' readings are in degrees celsius. Rather than explaining the issues in words, may i send you a video clip so that you can advice me appropriately? Chilled water leaving at 44F return at 53F, Condenser water leaving at 95F return at 85F!

  5. #5
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    I know what it's doing. It's surging. I've seen it countless times. I'm trying to figure out why. Take a picture of the sales order screen, the evaporator and condenser screens and post them here. That may be enough. By the way, I had done the conversions...I knew what was happening from that standpoint. Now I'm trying to find out what the chiller was designed to do and see if you may have a problem in the either of the shells. Where in the condenser sight glass is the liquid level being maintained?

    Also if you could go into the setpoints>setup screen and change the units from Celcius to Fahrenheit before you take the picture I, for one, would greatly appreciate it.

  6. #6
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    Jan 2011
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    Quote Originally Posted by KnewYork View Post
    Also if you could go into the setpoints>setup screen and change the units from Celcius to Fahrenheit before you take the picture I, for one, would greatly appreciate it.
    Actually, after logging in, go to setpoints>setup>user. Change the data display mode to English and the language to English (if it isn't already). That would help those of us who only speak English to help you.

  7. #7
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    Hi knewyork advice taken! Thank! I will post you ASAP!

  8. #8
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    There are a lot of things that could be going on post all the operating data so we can all look at it please and thank you.
    Arguing with your Boss is like wrestling with a pig in
    mud.
    After a while you realize that while you are getting
    dirty, the pig is actually enjoying it.

    It is not exactly cheating, I prefer to consider it
    creative problem solving.

    25 years ago we had Bob Hope , Steve Jobs , and Johnny Cash today we have no Hope no Jobs and no Cash !
    I can fix broke but i can't fix stupid !

  9. #9
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    http://www.youtube.com/watch?v=c6BWp9TemoA

    Hi all it a short video clips just check it out!!!

  10. #10
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    http://www.youtube.com/watch?v=M6n20f5ZmTw


    Hi all annoy the first video clip

  11. #11
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    Like I said a number of posts ago...I've heard many machines surge and filming the home screen doesn't do any of us any good in trying to determine what might be to blame for the surge. In addition, you didn't change the display units to English so we can see things in F instead of C. Incidentally, the surge is no where close to the worst I've heard. Actually, it's quite mild. Still can't help to find a solution until you provide operating DATA.

  12. #12
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    this is an interesting way to diagnose chiller problems...i hope that it doesn't catch on...i watch too much computer as it is.
    When I am late for work, I usually make up for it by leaving early.

  13. #13
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    Quote Originally Posted by jayguy View Post
    this is an interesting way to diagnose chiller problems...i hope that it doesn't catch on...i watch too much computer as it is.
    Pretty pictures nice sounds dosen't help much I guess we will be asking Siri whats wrong with my Chiller next !
    Arguing with your Boss is like wrestling with a pig in
    mud.
    After a while you realize that while you are getting
    dirty, the pig is actually enjoying it.

    It is not exactly cheating, I prefer to consider it
    creative problem solving.

    25 years ago we had Bob Hope , Steve Jobs , and Johnny Cash today we have no Hope no Jobs and no Cash !
    I can fix broke but i can't fix stupid !

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