Air dryers refrigerate the air, knock out the moisture, then heat exchange
the outgoing air with the incoming air to precool it and minimise the energy
needed to run it. Outgoing air should be cooler than incoming air but not
COLD as this would indicate that the heat exchanger was probably fouled with
old oil from a previous compressor. It might be able to clean it with hot
water and detergent if this is a problem..


Tom
"Proctologically Violated©®" wrote in message
...
True air drying reqs an air-conditioning type compressor, I believe.
246 watts seems kind of low, but is possible. Might not use a compressor.
Cold outgoing air may not be a sure-fire test, what with the joule effect
of
expanding gases'n'****....

Proly the unit should be rated ito cfm at some psi..

The real test is if any condensate is produced.
----------------------------
Mr. P.V.'d
formerly Droll Troll
"Lloyd E. Sponenburgh" wrote in
message
news

"Ignoramus25888" wrote in message
...
I bought a used compressed air dryer for $10 last weekend. Tried it
and found that it was working, since the outgoing air was cold and the
release valve was functioning. My question is about capacity. This
dryer uses about 264 watts of power, according to my wattmeter
(kill-a-watt). Is that enough for a 3 honest HP compressor. Thanks.

i

1 HP/hour == 745.7 watt/hour

But, um... how many watts does it take to dry air?? I dunno.

LLoyd