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  1. #1

    Trying to get a professional answer on this question Thanks

    R22 was added to a unit that has 422d. This unit was r22 has been changed to 422d and r22 was added to the unit about 1/2 pound before knowing it was 422d and not r22 will this affect the unit or should it be evacuated and recharged with 422d ? Trying to get away from r22 just to expensive. Thanks

  2. #2
    Join Date
    May 2000
    Indianapolis, IN, USA
    This is the 5th thread you've started on the same topic. 1 is enough! Look at the replies you've gotten there!

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