Page 1 of 2 12 LastLast
Results 1 to 13 of 16

Thread: york ycch

  1. #1
    Join Date
    Feb 2012
    Location
    utah
    Posts
    106

    york ycch

    I have a call I need to go look into on a ycch233s. the cust, says that the slidevalve is getting stuck and won't unload. from what he is telling me it sounds like the solonoid is the problem more then the valve. I did a search on this and found zip so I am hoping that some of you have some experiance or advice. also if anybody has any bulletins on this machine that would be great. Also what other machines (M#) would have the same compressor so that I can reseach that. thanks

  2. #2
    Join Date
    Feb 2009
    Location
    good old Europe
    Posts
    160
    Could be the potentiometer as well. The chiller the YCCH usually belongs to is YS.
    "Quality exists, when the price is long forgotten."

    Henry Royce

  3. #3
    Join Date
    Jan 2011
    Posts
    1,211
    nique, IMO you need to apply for Pro status. I won't go into the details of possible solutions for this compressor on the "open" forum.

    Quote Originally Posted by Entropie
    Could be the potentiometer as well.
    Unlikely. Potentiometer wouldn't prevent it from unloading.

  4. #4
    Join Date
    Feb 2012
    Location
    utah
    Posts
    106
    ya prob right, I have just never taken the time to do so.

  5. #5
    Join Date
    Jan 2011
    Posts
    1,211
    Here's a link to the IOM manual on JCI's site.

  6. #6
    Join Date
    Feb 2009
    Location
    good old Europe
    Posts
    160
    Quote Originally Posted by KnewYork View Post
    nique, IMO you need to apply for Pro status. I won't go into the details of possible solutions for this compressor on the "open" forum.

    Unlikely. Potentiometer wouldn't prevent it from unloading.
    You are right, but customers usually refer to the slide valve position only as indication. The corresponding motor current will tell you the truth. We don`t know if the compressor is still running, in ice storage mode, prevented from starting, tripping on low LWT, etc.
    "Quality exists, when the price is long forgotten."

    Henry Royce

  7. #7
    Join Date
    Feb 2012
    Location
    utah
    Posts
    106
    thanks for the manual. I believe this machine uses the big spring to unload so that may be a problem. from my conversation with the cust, the unit will load and unload below 50% but once it goes over 50% it shoots all the way to 100% and then won't unload, it just stays there. so obviosly the slide valve is not stuck. He did not know if the potentiometer had ever been messed with or if the brass rod had been changed. another company has been working on this unit for some time with no luck so he asked me to come and have a look. so just trying to get some ideas before I head out.

  8. #8
    Join Date
    Jan 2011
    Posts
    1,211
    Quote Originally Posted by nique
    I believe this machine uses the big spring to unload so that may be a problem.
    You might want to read pages 44-45 of the manual before you go check it out.

  9. #9
    Join Date
    Dec 2010
    Location
    Down by the river
    Posts
    1,672
    Quote Originally Posted by KnewYork View Post
    You might want to read pages 44-45 of the manual before you go check it out.
    Is this the page that says may cause severe injury or death??

  10. #10
    Join Date
    Jan 2011
    Posts
    1,211
    Quote Originally Posted by SouthernMech
    Is this the page that says may cause severe injury or death??
    No, but that certainly should be taken into consideration! The pages I referenced describe the operation of the slide valve.

  11. #11
    Join Date
    Feb 2012
    Location
    utah
    Posts
    106
    I had a look at the unit today and found the following:
    During the first few minutes of operation the unit will unload and load both normal and manual.
    After a few minutes the slide valve will only load even if the unload valve is manually actuated.
    If all the wires are removed it holds stable, until I try to unload it either electrically or manual in which case it only loads.
    Luckily this has a sister chiller so I swapped the solenoid assembly and discovered no change still loading with no unload.

  12. #12
    Join Date
    Feb 2012
    Location
    utah
    Posts
    106
    Sorry its a York YS EC EB S4CRA Chiller

  13. #13
    Join Date
    Nov 2006
    Location
    Cleveland,TN.
    Posts
    143
    have you fixed this thing yet?

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event