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  1. #1
    Join Date
    Apr 2003
    Location
    New York
    Posts
    700

    Confused 5 dr i/c high temp

    arrived on site system single compressor,juice hp80,encore computer controlled no pump down,did not see any head master on system,hussmann case mod#rfa5lu s/n9904-3790.checked tev screen (good). Temp. of fixture @-.5 when arrived put gauges on notice unit pumping down and cutting out on low pressure.solid sight glass,began adding gas to unit .condensor on fan cycleling control which was out of calibration had the fan comeing at 260# and off at 160 #.At this point unit staying on case temp at -15 after the fan cycle i start losing suction psi and temp unit goes off low psi before it reaches temp(-21).Also checked filter drop across filters (no drop).This unit was in a pent house with lovers open i closed the lovers to penthouse and put a covered up 1/2 the condensor ambiant temp -10 with wind chill factor put in follow up to change the fan cycleing control dark out .What am i missing.

  2. #2
    Join Date
    Feb 2007
    Location
    Northern NJ
    Posts
    648
    fan cycling stinks. i don't think you are missing anything but a headmaster, which would give you a nice, steady head pressure and a consistent suction.

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