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Question:
R-134a is the most common replacement for which of the following refrigerants?
A
R-12
explanation
R-134a (HFC) is a possible replacement for R-12 (CFC) in new household refrigerators. R-134a pressure-temperature characteristics are similar to R-12. However, some modifications to lubrication, thermal expansion valve, compressor & filter dryer must be made.
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