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    Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST



    Kindly advise me about the following operating parameters of subject chiller at 100% load.Micro Tech II c plus controller is available with the chiller

    1 Evaporator pressure/suction pressure
    2 Evaporating Temperature
    3 condensing pressure/Discharge pressure
    4 condensing Temperature
    5 Discharge Temperature
    6 Discharge Super heat
    7 oil pressure
    8 Evaporator inlet pressure
    9 Evaporator outlet pressure

    An early reply will be highly appreciated



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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    I am a new guy in A/C field. I need advice of my fellow members regarding the above mail. Kindly help me by replying to my above mail.

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Without knowing the refrigerant or design conditions your question is impossible to answer.

    Check with the manufacturer of the equipment or take running readings of the machine.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    The Refrigerant is R-134A. Ambient temperature is 40 degree centigerade.

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Would someone help me by providing the information about operating parameters of McEnergy 143.2 HA-ST Air-Cooled Screw Chiller (McQuay) at 100% load as McQuay is not responding to my query in this regard. The refrigerant is R134-A and Ambient Temperature is 40 deg.cent.

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Hi whats your water temp on and off

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Entering water Temperature(EWT) = 10.7 DEG C
    Leaving water Temperature(LWT) = 8.00 DEG C

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Hi from my experiance i would say 3bar suction pressure.10c temp. Discharge about 14bar. Suction superheat 5 to 6 c.evaporater water pressure 2bar. Hp 300psi. Lp 15 psi ccompressor running 150 to 200 amps depends on motor size. fans about 2 amps

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    We have R-134a Refrigerant in our MC-Energy 143.2 HA-ST Air cooled Mcquay Screw chiller. kindly advise whether the operating parameters mentioned in above reply of Mr Ghaz dated 8March 6.04 pm are for Air cooled screw chiller with R-134a Refrigerant.whether HP 310 PSI and L.P 15PSI are the High&low pressure cut-outs for Aircooled screw chiller with R-134a

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Yes they are cut out safety

  11. #11
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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Have McPower 300.2
    Anyone have manuals for McQuay one screw compressor?

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    Re: Operating parameters of McQuay Air Cooled Chiller McEnergy 143.2 HAST

    Dear Ishtiaq, Problem is solved or your are still facing issue please write me your cell contact. Might be i could help you out.
    Regards,
    Ramzan.

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