furnace [RE-wrenches]

[Smitty]

Ray, Bill Cunningham @ Southwest Solar in Tucson makes  PV direct, stainless
steel, side draft evaporative coolers. Well built units. For power consumption
reasons, he uses an axial fan instead of a squirrel cage, so that means the unit
will not push air through ductwork very well. It is designed to just penetrate an
exterior wall and dump air directly into the building, and, no worky in humid
climate. Smitty.

Ray Walters wrote:

> >Watch out about trying to run new furnaces with inverters (even SW's).  I
> >know of several examples where the unit won't work.  A variable speed blower
> >motor might have some real problems as well.
> >
> >Travis Creswell
> >Ozark Energy Services
> >
> >
> Trace's SW (Step Wave Series)definitely causes probs with the variable
> speed blowers in Trane products. A 50 microfarad cap across the inverter AC
> out seemed to cure that ill, but overall the gas fired Air conditioner
> still pulled almost 2500 watts for a 3 ton unit and had to run all day to
> even begin to cool down the vacation home. Definitely a generator load. I
> try to stay away from PV powering  any standard forced air systems. Anybody
>  ever try those PV direct swamp coolers?
>
> Ray
>
>
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