"When you change from R-12 to R-134a (or any other type), you will
probably need to change the oil in the compressor to a different type
as well. Why not consider holding plates while you are changing things
around? I have two holding plate fridges and one low temp holding
plate freezer. They work well with about 3 hours of generator time per
day. A large inverter with suitable battery recharge capability could
replace the generator time, as could an engine driven compressor which
is even more efficient. "

Spam Alert:

I have a complete dual (very recent 110VAC and original Techumseh
engine drive) dual (2 of them) cold plate system available after my
refit/rebuild, for only $500. That announcement has appeared here in
the past; if you're interested, drop me a line and I'll send you the
info - but to see it, go to http://tinyurl.com/cqf38 and click on
Refrigeration. You can also see the post in rec.boats.marketplace, of
9-26-05. An hour or less of running the compressor will completely
charge the cold plates; connected to shore power at the dock, the AC
unit takes over and cycles via thermostat.

L8R

Skip, rehabbing the arm so I can refit the boat and cut the cord

Morgan 461 #2
SV Flying Pig
http://tinyurl.com/384p2

"Twenty years from now you will be more disappointed by the things you
didn't do than by the ones you did do. So throw off the bowlines. Sail
away from the safe harbor. Catch the trade winds in your sails.
Explore.
Dream. Discover." - Mark Twain