On Sat, 14 May 2005 16:22:30 GMT, "Vaughn"
wrote:
"Chuck Sherwood" wrote in message
...

Or salvage a small AC compressor from an old window unit or water
cooler. You will need the run capacitor. Mount it on some type of base and
insulate everything so it is safe.

But don't they need oil which is usually lost when you cut the lines?

There is enough oil left in the sump for lots of operation, and I suppose
you could add some once in a while if you really wanted. I have had mine for
about 6 or 8 years of occasional operation without a problem. If it ever goes
bad on me, I will simply scrounge another.

If you know which soldered off tubes go into the sump and the ullage
space, you can install a simple vinyl-tubing sight glass gauge to
monitor the oil level in the hermetic can - the problem being to
determine the proper oil level to begin with.

I suppose if you call the manufacturer with the compressor model
number from the data plate, they can tell you how many fluid ounces of
oil, and what weight and type - mineral, POE or PAG synthetic. Do NOT
mix or change the oil, the oil seals inside are different to be
compatible with the oil. And you can drain and fill it to make the
initial 'full' level mark.

Oh, and put an oil separation filter on the compressed air output to
trap the excess oil - in refrigeration they don't care about a little
bit of oil entrainment in the output, because it's a sealed system and
the oil will be back soon...

-- Bruce --

--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
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