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Is it required to change expansion valve and other components for CFC 12 system while retrofit with R-134a?

April 26, 2017CFC components expansion R-134a Retrofit system valve

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Is it required to change expansion valve and other components for CFC 12 system while retrofit with R-134a?

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In thermal evacuation systems, the expansion valve has to be changed or reset to adjust to the higher pressure ratio. Other components like filter drier, compressor oil, capillary length etc also have to be changed.