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  1. #1
    Join Date
    May 2003
    Location
    Charleston SC
    Posts
    123

    York YCAS0150 problem

    I have a York screw chiller where circuit 1 compressor locks out on high discharge temp-runs 20 min to 1 hour. Have checked charge, subcooling superheat etc. all fans operational. History log shows that the capacity control is at or near the highest step 73 to 75 but the current is only 57 to 60% of full load. I suspect the slide valve is stuck and not opening fully.
    Does anyone know the checkout procedure for this slide mechanism, solenoid valve etc.

    Thanks Coolairman

  2. #2
    Join Date
    Oct 2009
    Location
    God's country - Shenandoah Valley, VA
    Posts
    355
    Have you confirmed the accuracy of the sensor?

  3. #3
    Join Date
    Dec 2002
    Location
    Titusville Florida
    Posts
    337
    check your high pressure transducer and cable, Had same problem. trans ducer would not bring fans on all of the time.

  4. #4
    Join Date
    Dec 2002
    Location
    Titusville Florida
    Posts
    337
    Here's your manual
    Attached Files Attached Files

  5. #5
    Join Date
    May 2003
    Location
    Charleston SC
    Posts
    123
    Thanks Sabre

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