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  1. #1
    Join Date
    Sep 2005
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    parallel scroll compressors - oil level?



    looking to swap out a dead compressor

    a scroll would be quieter which would be better

    two 7hp Copeland Scroll 7 ZB50KCE-TFD-551 would be a good match for the condenser/evaporator (and have been found locally, good used, cheap)

    haven't setup parallel compressors before, according to Copeland datasheet as long as both compressors are running at the same time (all the time) I can just parallel them with a length of pipe to the oil level port?

    ZB50KCE.jpg


    worried oil will migrate from one to the other... with suction/discharge/oil ports all run in parallel, and compressors wired to run together it shouldn't be a problem?

    I'll probably add a 5 second time delay to one compressor start up, so both aren't starting up at the some time putting high load on electrical supply

    any ideas/input before I bite the bullet and buy the compressors?



  2. #2
    Join Date
    Sep 2009
    Location
    Iran
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    Re: parallel scroll compressors - oil level?

    Hi
    The best way to adjust oil levels;
    conect oil ports in 2 compressors and run both of them
    With 10 seconds delay
    Both compressor should have own circuit controls

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