Check all the manuals you want. Just remember that the FILTER DRYER must be changed! The desiccant used in a r12 system is not compatible. ( They say it is but it only works for a little while.)Eventualy it will clog up and die.
I don't know of that term, all I know is what I was taught whne I took the refrigeration class. My text book says between the compressor oil and the 134a it will clog up the filter dryer. 134 conversions are a temporary fix. If you can get r12 stay with it.It works better!