[DML] Re: A/C gas types

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

R-12 is not flammable but it does break down in the presence of flame
into toxic gases. It is NOT illegal, at least not yet. However you DO
need a license to handle it.

I am not familiar with R-24 so I can't comment on it.

R-134 will give approx 10% less cooling capacity. Head pressures are
higher. You have to remove all traces of the origional refrigernt oil
and replace the dryer with a different type. All of the seals should
also be replaced and the hoses with "barrier" type.

The bottom line is if you can still find a place that can service your
car with R-12 it is still the best choice although it may seem
expensive. Your second choice would be one of the available "drop-in"
replacements like R-414a. It is a blended refrigerent with operating
charactoristics very close to R-12. The shop you pick should leak-test
and vacuum thourouly, sweep charge and retest, evacuate again and then
fill with the specified amount of refrigerent. Finally they should
performance test the system and give you some kind of guarantee. You
should try to find the best shop in your area by word-of-mouth and
reputation, not the biggest ad in the Yeloow Pages.
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "Chris Hawes" <chris@xxxx> wrote:
> I am nearing the end of rebuilding my aircon system (evaporator
blew) and 
> wondering what gas would be best.
> 
> From what I understand:-
> 
> vin 5255








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