Results 1 to 4 of 4
  1. #1
    Join Date
    Jun 2011
    Location
    Detroit, MI
    Posts
    67

    York YR constantly loads

    Hi guys. I've got a York YRWDWAT2-46A that is having some issues with loading up. What happens is this- the chiller starts up and runs, starts to pull down, and once it starts to get a handle on the load and after the pulldown timer expires it starts to load up to 90% as it should. The problem comes in as it sits at 90% (it's programmed current limit) it will creep up to 105% then backs its self down by unloading, due to hitting the 105%, back down to 90% then it repeats. I was watching the compressor screen (Optiview) and the sofware isn't calling for it to load beyond 90%, so I thought it may be the capacity control leaking. I attempted to stop it by closing off the load side valve and it continued to load. Tried closing off the common port and still the same thing. For certinty I disconnected the load coil and saw the same result. I am thinking that there is in internal issue with the comp and that perhaps the slide valve piston seal is leaking or the slide valve shaft seal. What do you guys think? Is there anything else that I may be missing or could try? If it is the slide valve seals, is this something repair parts can be aquired? Thanks for the help.

  2. #2
    Join Date
    Sep 2011
    Location
    Northwest Louisiana
    Posts
    290
    Replace Gyld rings, then make sure condenser water temperature stays fairly constant so the slide valve doesnt hunt and wear out glyd rings again. YRs got a bad rep, but the ones we take care of have been reliable once some issues were resolved with condenser water temp and ref. level controller.
    A LITTLE BIT OF STUPID GOES A LONG WAY!

  3. #3
    Join Date
    Jun 2011
    Location
    Detroit, MI
    Posts
    67
    Thanks for the info Sgt York. I read a post from Klove i think it was that noted there being a service buliten for the yr compressors anyone have this? Also, is there any manuals availible that show disassembly instructions for the T2 comp? York's site seems limited with the info. I have a york works cd that has plenty of stuff on the yr's, but I've noticed that there isn't much on York's site for anything that ends with -M1. Tried calling them looking for 160.47-M2 and couldn't even buy it because baltimore parts couldn't find it. They don't make it easy.

  4. #4
    Join Date
    Jun 2011
    Location
    Detroit, MI
    Posts
    67
    I found SB0041. this applies to t0 and t1 compressors, does anyone know if this also applies to a t2 compressor? I'm mostly concerned with the tear down and assebly aspect of the service bulliten.

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