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Old Oct 11, 2014 | 12:36 PM
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Default air conditioner charge

If an airconditoner is completely empty of R-12...how many cans does it take to completly recharge it (fill it)....?? Lets say 12 oz cans...
probably a dumb question...but curious...?
Thanks
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Old Oct 11, 2014 | 12:40 PM
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Depending on the year, probably around 40 ounces of R12 for a C3. GM shop manual for your year will tell you exactly.
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Old Oct 11, 2014 | 12:42 PM
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It is a 1978...thanks
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Old Oct 11, 2014 | 12:46 PM
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An '80 takes 3 lbs. or 48 ounces.
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Old Oct 11, 2014 | 01:35 PM
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First fix the problem. A/C systems are a closed system you have to have a leak somewhere
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Old Oct 12, 2014 | 11:11 AM
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Where are you finding R12? It's supposed to be against the law to sell it.

Take the car to any competent automotive AC shop. R12 remains available to licensed AC technicians. They can troubleshoot and charge your AC.
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Old Oct 12, 2014 | 11:46 AM
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Originally Posted by Easy Mike
Where are you finding R12? It's supposed to be against the law to sell it.

Take the car to any competent automotive AC shop. R12 remains available to licensed AC technicians. They can troubleshoot and charge your AC.
I buy R12 all the time. I own an auto shop and have three technicians that have the section 609 certification. All you have to have is that certification.
Cost is $20 for the test. If you pass it you can buy all the R12 you want.

Bubba can't pass it because you really need to know A/C systems.

Go here:
http://www.macsw.org/imis15/MACS/Sec...d-27fd9b9153f6

Dave

Last edited by Roozstr; Oct 12, 2014 at 11:49 AM.
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Old Oct 12, 2014 | 02:54 PM
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It's not illegal to sell R12. Ebay has all you'd want at around $30/can, but you generally need to either have the above mentioned license or sign a statement indicating you are purchasing the refrigerant for resale to a licensed individual. I've sold some there myself but now I'm down to just 14 cans which I may need some day.

Last edited by Jud Chapin; Oct 12, 2014 at 02:58 PM.
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Old Oct 12, 2014 | 03:58 PM
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If the system is completely discharged, I would first convert to R134. Lots of info on how to do it is available. Better in the long run!
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Old Oct 16, 2014 | 04:14 PM
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I agree, it would be more cost effective to convert to R-134a than to try and repair and upkeep a non working R-12 system. But then again, there's a new refrigerant that will be coming onto the market soon. 1234-YF is still in the testing phase, and will be the replacement for R-134a. Different chemical makeup/different operating pressures.

I'm finishing my climate control class (tomorrow) at UTI-Orlando, and will be receiving my 609 certification in the mail soon.
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