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Thread: R438a

  1. 17-04-2012, 01:38 PM #1
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    Pipelini
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    R438a



    Can 438A be used in a R22 pumped circulation system (-28 degC)? If so what are the implications?


  2. 17-04-2012, 11:33 PM #2
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    Brian_UK
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    Re: R438a

    Maybe not, see the second from last paragraph on page 2....
    http://www2.dupont.com/ISCEON/en_US/...guidelines.pdf

    Read the lot anyway.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015
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