For shops, R-1234yf means several new procedures, a certification and new equipment in order to properly handle these new systems. Why the difference in handling and servicing R-1234yf systems versus R-134a? Flammability.
Don’t be alarmed, because R-1234yf isn’t extremely flammable by any stretch, but its mild flammability carries more risks and requires additional safe-handling procedures.
Many diagnostic procedures are the same as before, but there are additional steps that have been tacked on to account for the proper handling of the mildly flammable R-1234yf.
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