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  1. 10-07-2001, 05:37 AM #1
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    luciom
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    automating a chilled brine refrigeration system using ammonia refrigerant

    Subj. system uses two stage "grasso" type reciprocating compressors but requires following manual operations during start-up to avoid liquid stroke :
    a) start compressor
    b) operator checks by sound for automatic loading of one
    cylinder
    b) immediately upon loading of the said cylinder the 2nd stage
    suction valve is gradually opened taking care liquid does not
    enter compressor
    c) next the 1st stage suction valve is gradually opened again
    taking care liquid does not enter compressor
    Any ideas ?
    Last edited by luciom; 10-07-2001 at 05:39 AM.
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