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Thread: Re-gasing Old Original Air-Conditioning Units HJ HX

  1. #1
    P Plater Beast Master's Avatar
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    Re-gasing Old Original Air-Conditioning Units HJ HX

    Has anybody re-gased old original aircon unit{HJ,HX} with new gas and do you need to upgrade anything to make it work or comply.

  2. #2
    Banned
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    Feb 2010
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    Central West NSW
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    They say the hoses are too porous for the new gas but they will work. I converted our old 12r gas AC systems on our tractors over to 134a gas and they didn't change anything. My wb runs on as well but I got it re-gases with that propane mix stuff and it promptly froze up and wrecked the compressor.

  3. #3
    P Plater cheesygrinner's Avatar
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    Brisbane, Queensland, Australia.
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    I too thought the hoses had to be changed. Mine was done about 15 years ago from R12 to 134a.

  4. #4
    It's a rockin' agr071's Avatar
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    Macksville area
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    Can still use original hoses.
    Drain the oil from the compressor and put a PAG oil in it.
    Change receiver drier and charge fittings.
    Regas on R134a and away you go.
    I put 550g in mine and it's just right. Head pressures are good as well.

    BUT BEWARE.... as of July 1 A/C regassing WILL be going up. There is a new type of gas on the market and buying prices will increase by 300 to 400%. R134a WILL be getting phased out.
    BO6 = Rarer then a Sandman

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