Air Conditioning

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Jan 13, 2008 | 08:56 PM

billd56

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Joined: Feb 2007

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From: Grimsby ON

Air Conditioning

Hi,
Does anyone know if any changes/upgrades are necessary to use freon gas for the air conditioning. I'm just getting ready to fix up some questionable work on my 81.

Any help is appreciated!

Jan 13, 2008 | 10:10 PM

Jud Chapin

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From: Wellington, FL

St. Jude Donor '11 thru '25

Are you converting from R12 to something else?

Jan 14, 2008 | 06:45 PM

billd56

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From: Grimsby ON

Yeah, its hard to find someone who will use R12 anymore, so i'm looking to switch to freon.

Jan 14, 2008 | 11:21 PM

Jud Chapin

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From: Wellington, FL

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R12 is freon as is R134a . R134a is what most switch to. Auto parts stores sell kits that contain the minimum necessary parts required for the change. In all cases, a flushing of the system is required to rid it of all R12 compatible oil and then replacing it with R134a compatible oil. All o-rings are also generally suggested to be replaced. Some go as far as replacing hoses and the condenser. The dryer/accumulator should always be replaced whenever an a/c system is opened. There are tons of info on the subject which can be found by Googleing the subject.

Jan 15, 2008 | 04:06 PM

WRC7732

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From: Acworth, GA

I posted a pretty in depth post on this a while back. Try a search, and try the archives if you don't find anything.

Jan 15, 2008 | 07:14 PM

Derby98

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Quote:

Originally Posted by Jud Chapin

Jud is right. Do it right or don't do it at all.

Jan 15, 2008 | 07:16 PM

I'm Batman

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From: Springfield MO

St. Jude Donor '07

Freon was actually a trade name for R12. R134a is the standard conversion coolant these days.

Jan 16, 2008 | 07:51 AM

Jud Chapin

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From: Wellington, FL

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Quote:

Originally Posted by I'm Batman

Freon was actually a trade name for R12. R134a is the standard conversion coolant these days.

You are correct Batman, as Freon is the trade name used by Dupont when introduced back in the '30's. But over time, most call these refrigerants freon. It is sort of like Kleenex, I guess, which was/is a brand name for tissues, yet most people refer to all tissues sometimes as Kleenex. Thanks for pointing this out.