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  1. #1
    dmccoy1's Avatar
    dmccoy1 Guest

    Ice Freezer Conversion



    I am working to replace an R-12 condensing unit on an old (30+ years) chest ice cream chest freezer, size 8ft L X 2ft D X 2ft W.
    My dilema is what refrigerant to use for the new condensing unit. R134a is not very efficient at the minus 10degree F that I want to maintain, I believe R404a is too high pressure for the existing evaporator and tubing. I am thinking about going with 401a unless I can get some other suggestions.

    Any ideas



  2. #2
    honestdan's Avatar
    honestdan Guest

    Re: Ice Freezer Conversion

    By the sound of it, I would be going with R409 because it is a direct drop-in replacement for R12 with similar pressure/temp relationship without the need to flush systems or change oils. Having said that, I have been out of the commercial refrigeration game for a few years and might be out of the loop a bit now.

    Good Luck

    Dan

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