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  1. #1
    Join Date
    Jun 2003
    Location
    norwood,nj
    Posts
    5

    Question

    any thing you guys know about retro from 12 to 409a, besides the oil, I should know about for a walk in box,can use the same lpc and a 12 drier , right? any other little things I should expect? all info would be appriciated.My first retro so hope all goes well. thanks.

  2. #2

    Lightbulb

    Try Hotshot instead. I believe it is 414B. Don't even have to mess with changing over from mineral to POE. Call a trusted wholesaler.

  3. #3
    Join Date
    Dec 2000
    Location
    flourtown pa.
    Posts
    57
    Make sure you put it in as a liquid,no gas.Oil and all controls should be ok.
    Did a few changes with 409A.
    Recover all R-12, pull vac.
    See if there is a weigh in charge on the nameplate.

  4. #4
    Join Date
    Jun 2004
    Posts
    420
    409a works fine with mineral oil for medium temp. It will have oil return problems at lower temps. 409a is probably not the best choice for low temp applications anyway

  5. #5
    Join Date
    Aug 2003
    Posts
    242
    Hot Shot works alot better.

    I would post this in the refrigeration and ice making section.

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