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  1. #1
    Join Date
    May 2008
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    carrier 30gx chiller EXV problem



    Dear all.
    we have a carrier 30gx chiller its expansion valve is not opening,we try through test its opening .but in normal condition its not working please help me to fix this



  2. #2
    Join Date
    Oct 2009
    Location
    Norway
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    Re: carrier 30gx chiller EXV problem

    Have you checked if the low pressure transducer and superheat probe is showing correct values?

  3. #3
    Join Date
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    Re: carrier 30gx chiller EXV problem

    suction pressure and superheat are showing actual values

  4. #4
    Join Date
    Dec 2007
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    australia
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    Re: carrier 30gx chiller EXV problem


  5. #5
    Join Date
    Oct 2009
    Location
    Norway
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    Re: carrier 30gx chiller EXV problem

    How did you test the exv?
    the water inlet/outlet probes are also showing correct values?
    Is there a seperate fuse for the exv?
    Have you checked the sub menu that the exv is requesting opening and measured the signal given to the exv?

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