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Thread: Why Am I seeing theses pressure
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28-02-2014, 09:50 PM #1
Why Am I seeing theses pressure
Working on a subzero res refrigerator and getting 240 psi highside and -(neg) 3.5 to 0 psi on suctionside. When using vaccum pump heard a loud thump from compresser never heard that before also switched out filter drier as I couldnt get system to equilze with nitrogen thinking there might be a restiction , main concern is why on this r-12 unit would I see these pressure after charging. I never seen 0 psi with highside as high as psi was. Also can get comp over 2.6 amps when correct amps is 7.0 amps