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Sanden AC Compressor Converting to R134A Part 3



      How to convert an AC system from R-12 to R-134 system continued. To charge the new R134 system in general 5% less Freon will be used as the proper charge. Sometimes in cases of extreme cooling a larger displacement condenser can be used or a cooling fan may need to be added. The above chart can be used to determine the amount of oil needed for a orifice tube or expansion device based system.


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