The two freons aren't interchangable. They use much
different pressures, and flow rates.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"Richard J Kinch" wrote in message
. ..


My suggestion was conditional on this being an R-134a unit,
not R-22, which
would allow repeated filling and venting instead of
vacuuming, obviating
the need for all that equipment.

You're correct that it would be illegal these days with R-22
and less
likely to succeed with R-22 pressures.