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  1. #1
    Join Date
    Mar 2010
    Chapel Hill, NC
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    2 stage and high head pressure

    So I don't have a lot of experience with 2 stage acs and hps, but I have been doing PMs on some and am noticing that a lot of them have higher than normal head pressure in stage 1. The suction will look fine or a little lower PSI than is recommended on the door chart. Is this normal?

  2. #2
    Join Date
    Mar 2011
    Galveston Texas
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    most systems you have to check/charge in high stage, they don't reccommend low stage checking/charging

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