Re: my 134a conversion begins...

["jtrealtywebspannet" <jtrealty@xxxx>]

There are now several "drop in" replacements for R-12. Check with 
either a large A/C wholesaler or a shop that specializes in A/C work. 
They will be familiar with what is working well. Try not to convert to 
R-134. The system was not desiegned for the operating pressures that 
R-134 requires so it will loose approx 20% of cooling capacity. Also 
it is incompatable with the lubricant used for R-12 so unless the 
system is COMPLETLY dissasembled and cleaned of all of the old oils it 
will cause trouble in the future. The origional "O" rings must all be 
replaced or they will leak because they are not compatable with the 
lubricants for R-134. The bottom line is R-134 although cheaper isn't 
worth the trouble. The easiest answer is to fix all of the leaks and 
refill with R-12. Although expensive it is still obtainable. The next 
best alternative is one of the new "drop in" replacements.


--- In dmcnews@xxxx, "dmcman82" <dmcman73@xxxx> wrote:
> 1. Check the price on R20 (or is it 22?), it's the freon used in 
> home A/C's, I believe it is cheaper than R134a...if so use this to 

> > [Non-text portions of this message have been removed]