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.


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    Title :

    The development of a retrofitting procedure for CFC-12 automotive A/C systems to HFC-134a and P.A.G. lubricant


    Additional title:

    Entwicklung des Nachrüstungsverfahrens für CFC-12-Fahrzeugklimaanlagen mit dem HFC-134a-Kältemittel und Polyalkylenglykolschmiermittel


    Contributors:
    Ax, H. (author) / Jingu, N. (author) / Komatsu, S. (author)

    Published in:

    Publication date :

    1993


    Size :

    10 Seiten, 3 Bilder, 9 Tabellen, 9 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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