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  1. #1
    Join Date
    Nov 2008
    Posts
    7
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    Mcquay AGS maintenance information

    Morning all, I'm looking for any information on the proper procedure for changing the oil filter, oil, and slide valve position senseor on a Mcquay AGS chiller. The compressor has a 45 psid across the oil filter and the slide valve will load up properly, but it will not unload. Or at least the slide valve position sensor does not "track" with the slide valve. The amp draw on the compressor doesn't unload fully also. the controller is giving me a slide valve position fault. I've calibrated the sensor already. Any help would be appreciated! Have a great day!!!

  2. #2
    Join Date
    Feb 2003
    Location
    Wichita Ks
    Posts
    1,574
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    what vintage of machine is it?

  3. #3
    Join Date
    Nov 2008
    Posts
    7
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    Chiller Model# AGS170CS27-ER10.

    Compressor Model# HSA197QY11YB-A.

    Thanks for asking!!

  4. #4
    Join Date
    Feb 2003
    Location
    Wichita Ks
    Posts
    1,574
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    just isolate the compressor to remove the oil filter and drain oil. send me your email and I can send you info on slide valve

  5. #5
    Join Date
    May 2000
    Location
    Houston, TX, USA
    Posts
    361
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    Quote Originally Posted by freonrick View Post
    just isolate the compressor to remove the oil filter and drain oil. send me your email and I can send you info on slide valve
    Can I get a copy of info also?

  6. #6
    Join Date
    Sep 2008
    Location
    dania,fl
    Posts
    69
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    Send me the info too

  7. #7
    Join Date
    Dec 2013
    Location
    Russia
    Posts
    107
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    Can I get a copy of info too?)

  8. #8
    Join Date
    Feb 2003
    Location
    Wichita Ks
    Posts
    1,574
    Post Likes
    sent

  9. #9
    Join Date
    Dec 2013
    Location
    Russia
    Posts
    107
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    thx

  10. #10
    Join Date
    Dec 2013
    Location
    Russia
    Posts
    107
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    I need service manual for Frame 3100 McQuay and for 4200. Anyone got it?

  11. #11
    Join Date
    Aug 2016
    Posts
    1
    Post Likes
    I know its old but I am serching for the slide valve calibration procedures, anyone still have it please

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