I cool(ed) the house with two 12,000 BTU split system air conditioners
made by Sanyo. After 14 years, they have developed leaks in the
evaporators (same place, same time) making them useless. I am
considering replacing them with Fredrich units, that have better specs
and are a little cheaper. Does anyone have any experience with these
units? Forgive the OT, but this bunch generally knows its' stuff.
Let me go back to a problem another guy had in his shop with wiring
MANY air conditioner evaporators fail because of corrosion between the
swaged copper "U" connectors and the standing pipes in the radiator. They
don't fail because of dissimilar metals corrosion -- they fail because of
hydrogen sulfide gas in the air.
If you have sulfur water, or any other type of H2S source in your home (some
domestic cooking/heating gasses have some H2S in them), then you can be
assured that your evaporator coil won't last the full warantee life.
If you do have sulfur water, get an aerator system, and de-sulfur it far
enough away from the house so that fumes don't get in.
I originally had a 1 ton Carrier heat/cool window style unit in my shop that
lasted 10 years with several repairs. When It finally died, I replaced it
with a Friedrich. It is 5 years old and has never missed a beat. The
design and apparent quality of construction is way above what the Carrier
was. Friedrich has always had a good reputation in the deep South where I
> I cool(ed) the house with two 12,000 BTU split system air conditioners
> made by Sanyo. After 14 years, they have developed leaks in the
> evaporators (same place, same time) making them useless. I am
> considering replacing them with Fredrich units, that have better specs
> and are a little cheaper. Does anyone have any experience with these
> units? Forgive the OT, but this bunch generally knows its' stuff. >
> Kevin Gallimore
Well, this info is so old as to be meaningless, but I have 2 Bryant
systems, built with conventional outside compressor/condensor units, and
fan/evaporator units inside that look like they were made for industrial
service. Bizzarely, there are no air filters on them, and they use the
space above the suspended (false) ceiling as the return plenum. I've
seen these evaporator units called "unit coolers" in some buildings.
Anyway, a small, multi-speed, double-ended motor with two squirrel
cage blowers and a short, wide core. I've never seen this type
evaporator used in residential service before.
But, this system was installed in the fall of 1975, when our house was
built. I had a corroded terminal burn off one of the compressors, and
was miraculously able to solder a new 1/4" quick connect terminal to the
remaining stud. One of the covers over the service valve corroded away,
and I was able to find one in the scrap bin at a refrigeration service
outlet where I bought Freon. I've had to all a little R-22 to it every
couple of years, but that is the only repair work. I do flush out the
condensor core every year with a garden hose, the amount of crud packed
in the fins is incredible.
So, these units have been running for 30 years with the most minimal
Umm, there's a hell of a lot of metal working in making these units, but
I didn't do very much of it.
Oh, yeah, shortly after we bought the place 16 years ago, one of the
condensate drain lines corroded through and started dripping on the
bathroom ceiling. That should count for some actual metal that I
Then there are those of us who live in the oil fields...and cant
escape H2S in small to large quantities year round.
"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.
Think of it as having your older brother knock the shit out of you
for torturing the cat." Gunner