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Jump starting the A/C compressor

Discussion in 'Mondial' started by bigeasy, Sep 28, 2017.

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  1. bigeasy

    bigeasy Formula Junior

    Dec 31, 2012
    368
    #1 bigeasy, Sep 28, 2017
    Can anyone tell me how to "jump" the A/C compressor? did a total evac. on the system and it stopped taking Freon, r 12 after the first 12 OZ's.Its a new compressor and worked fine before the evac.

    Thanks!
     
  2. bigeasy

    bigeasy Formula Junior

    Dec 31, 2012
    368
    #2 bigeasy, Sep 28, 2017
    1984 Mondial QV cab R 12
     
  3. bigeasy

    bigeasy Formula Junior

    Dec 31, 2012
    368
    #3 bigeasy, Sep 28, 2017
    another question, has anyone on this Forum filled their a/c system from empty? the manual states it takes approx. 42 oz. to fill the system, and at what number of Oz's does it take to get the pressures to a point where the a/c compressor turns on? approx. I just added 12 oz's and have not had the compressor turn on, do I need to add more r-12? low side pressure and high side or now at 80 each with the engine off.
     
  4. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #4 mike32, Sep 29, 2017
    Look in the front compartment and you will see the freon filter drier, screwed into the top of it is a low pressure switch ( looks like hex nut) - you need to either short the 2 wires together or just pull one off- cant remember which. Assuming you have engine running and AC selected the elect clutch on the compressor should engage. Failing that just conne t a 12 volt supply to the power cable on the compressor clutch
    You are adding this freon with the compressor not running, be carefull you dont get the compressor full of liquid and then start it, they compress gas, not liquid
     
    Karsya Eins likes this.
  5. Karsya Eins

    Karsya Eins Karting

    Jun 17, 2014
    94
    Albany, NY
    Full Name:
    Demostene Romanucci
    #5 Karsya Eins, Sep 30, 2017
    and remember to fill (with gas) from the low pressure side.
     

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