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Thread: 407c??

  1. #1
    Join Date
    Apr 2017
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    Green tech guy.
    Supply company telling me you can add this on top of r-22, but most techs say it's a retrofit, any suggestions?

    Sent from my iPhone using Tapatalk

  2. #2
    Join Date
    Apr 2005
    Australia : Queensland
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    Can be added with no TXV adjustment.

    Here is another post that looks into this further.
    The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.

  3. Likes Jettinvr6sc, weezer81 liked this post.
  4. #3
    Join Date
    Nov 2006
    Athens, Ohio
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    Positively not! You seem to be saying that you will mix the refrigerants.
    The old refrigerant must be recovered and replaced with the new refrigerant.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator:

    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  5. Likes Gunslinger, weezer81 liked this post.

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