[MR2] reading a/c pressure gauges
tbamc at gbta.net
Tue Jul 8 00:58:03 EDT 2008
I bought a used set of gauges for dealing with my a/c system, and
thought using them was fairly straightforward. I then noticed that in
addition to a PSI scale, there is an R12 and an R22 scale. I 'thought'
the large PSI scale was the one to use, but then seeing the vastly
different R12 scale I started to question that assumption. Anyone know
the difference, or have a link to a site explaining it? Google wasn't
kind to me.
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