Jack, I agree that there are numerous HVAC contractors listed in the phone book, but from what I have observed, there are few of them that I want working on my Corvette. I do not know of any commercial application of HC-12 or any of the other "odd-ball" replacements for R-12. You cannot reclaim/recycle just any refrigerant in just any machine. Cross contamination of freons renders them useless and also nesessitates the replacement of the filtration in the equipment.
Why use "off the wall" refrigerant that causes problems for technicians when R-12 is still available and R-134a is the accepted replacement.
I do not know of a competent A/C technician that does not replace the receiver/drier when either the system has been open for a period of time or a catastropic failure has occured in the system. It has two functions; 1. It contains a deisacant which traps moisture and 2. It filters out contaminants and large particles which would otherwise clog valves. For replacement compressor waranty to be valid, the drier must be replaced.
Yes it is possible to recycle driers but on everyday cars is it worth the effort.
For further information on changeovers go to http://www.macsw.org/questions.html
Why use "off the wall" refrigerant that causes problems for technicians when R-12 is still available and R-134a is the accepted replacement.
I do not know of a competent A/C technician that does not replace the receiver/drier when either the system has been open for a period of time or a catastropic failure has occured in the system. It has two functions; 1. It contains a deisacant which traps moisture and 2. It filters out contaminants and large particles which would otherwise clog valves. For replacement compressor waranty to be valid, the drier must be replaced.
Yes it is possible to recycle driers but on everyday cars is it worth the effort.
For further information on changeovers go to http://www.macsw.org/questions.html
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