"dpb" wrote in message ...
Bill wrote:
Actually I had a condenser years ago which sprayed water on the coils.

Nothing but trouble and rust! (Water lines get things growing in them
and
clog, needs frequent maintenance, etc.) It would stop working about 3
times
a year due to these problems. Had to clean it out.

...

Probably get much of the benefit w/ far fewer of the problem if simply
misted in the air ahead of the intake...


I put an old swamp cooler on top of my central air for a while. (Tucson)
Removed the condenser fan and just sat the cooler on top of the box. Hooked
the cooler's motor to the fan wiring and away it went. The cooler was old
when I put it there and it finally rusted out and I put the original fan
back on. Thought it would reduce the load on the compressor. Can't really
tell if it did.

They sell a "mister" style unit to cool the condenser coils.
http://www.acmister.com/products/

Al