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Thread: FREEZE 12

  1. #1
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    Confused FREEZE 12

    I bought a 1979 f 100 someone has converted it to 134a it aint gettin it if you know what I mean, anybody ever heard of this stuff called FREEZE 12 I know the condenser is not big enough thats a given, its either a cocktail or an electric fan to keep the head pressure down .

  2. #2
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    Quote Originally Posted by Mars65 View Post
    I bought a 1979 f 100 someone has converted it to 134a it aint gettin it if you know what I mean, anybody ever heard of this stuff called FREEZE 12 I know the condenser is not big enough thats a given, its either a cocktail or an electric fan to keep the head pressure down .
    R-409.

  3. #3
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    Thread Starter
    Too hi on the head again . I had old timers refrigeration guys tell me about mixing a tiny bit of 12in a 502 freezer one time ��

  4. #4
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    R414B. It used to be my go to for low temp R12 equipment. Runs fairly low head pressure.
    Can’t say I’ve ever tried it with auto ac.
    I havent failed. Ive just found 10,000 ways that wont work. - Thomas Edison

    Its not whether you get knocked down, its whether you get up. - Vince Lombardi

    "In this house we obey the laws of thermodynamics" - Homer Simpson

    Local 486

  5. #5
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    Hot Shot was very popular for auto A/C conversions. So much so it had DuPont screaming patent infringement.

  6. #6
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    134 works great in vehicles with radiator type condensers

    If that old beast has tube type coil , it cant reject enough heat

    Get yourself a radiator type from newer truck and ghetto rig it

    If you really like that truck , theres a place makes custom parallel flow condensers with hoses too

  7. #7
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    Thread Starter
    That great info no body has ever told me about that I will google that info

  8. #8
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    Big Hayden electric fans are helpful as well.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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