Extensive vehicle fleet testing, followed by laboratory analysis of various vital parts of the air-conditioning systems, have been performed in order to develop a procedure for retrofitting existing CFC-12 automotive air-conditioning systems to HFC-134a.Testing shows that a compressor in good condition that has previously been used with CFC-12, can be re-used with HFC-134a provided that the appropriate oil, desiccant and elastomer is used. Testing has also shown that flushing the system is not necessary.The procedure in this paper was developed as a result of testing and proposes a procedure that will maintain an “acceptable” life of the compressor at a reasonable cost.
The Development of a Retrofitting Procedure for CFC-12 Automotive A/C Systems to HFC-134a and P.A.G. Lubricant
Sae Technical Papers
Passenger Car Conference & Exposition ; 1993
1993-10-01
Aufsatz (Konferenz)
Englisch
Development of a Lubricant for Retrofitting Automotive Air Conditioners for Use with HFC-134a
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