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  1. #1
    Join Date
    Aug 2012
    Location
    Palmyra, Missouri, United States
    Posts
    224

    Subcooling bouncing between 6 degrees and 15 degrees??

    Installed new compressor in a burnout situation on a walk-in beer cooler condensing unit. New HH suction line drier, l.l drier. My superheat was also bouncing between 15 degrees and 20 degrees. R-22. I made sure the bulb on the txv was tight and insulated properly. Will be doing a follow up on this unit tomorrow, but was just curious if the case being 50 degrees and a boat load of warm beer would cause this hunting.http://hvac-talk.com/vbb/images/smilies/cheers2.gif

  2. #2
    Join Date
    Feb 2001
    Location
    Anaheim, CA
    Posts
    67
    Your SH should fluctuate 8-12; 15-20 is telling me the TXV needs to be opened or just replace it to play it safe.

  3. #3
    Join Date
    Jul 2012
    Location
    Western KY
    Posts
    1,221
    Where is the bulb in reference to evap outlet?

  4. #4
    Join Date
    Aug 2012
    Location
    Palmyra, Missouri, United States
    Posts
    224
    Header on outlet vertical mount

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