Small DC stuff [RE-wrenches]

jay peltz jay at asis.com
Wed Aug 2 12:26:31 EDT 2000


Hi All,

They might buzz like crazy though.

jay

"Steve Willey, Backwoods Solar" wrote:

> Kurt, I have been away to SolWest fair so this may be too late to help....
> We find 24 volt muffin fans will operate on 12 volts at lower power, so they
> are a safe bet to operate direct solar on 15 to 20 volts.
>
> Steve Willey   www.backwoodssolar.com
> Backwoods Solar Electric Systems
> From: Kurt Nelson, SunWise <sunwise at win.bright.net>
> To: <RE-wrenches at topica.com>
> Sent: Tuesday, July 25, 2000 5:14 PM
> Subject: Small DC stuff [RE-wrenches]
>
> )  I also incorporate some Low voltage DC brushless "muffin" fans into some
> > systems... composting toilets, ventilation, etc.  A guy stopped into my
> shop
> > and wanted to do a small PV direct ventilating system and I recommended a
> > small panel and a couple such fans.  I know I have done PV direct
> brushless
> > muffin fans before, but I looked very foolish when I went to show him how
> to
> > put these simple components together and they wouldn't run.  Apparently
> some
> > of these fans handle the various voltages they may encounter in PV direct
> > applications, while the electronics package in others will not???  I've
> got
> > a few in inventory that will run panel direct and a whole bunch that will
> not.
> >
> > Any thoughts appreciated.
>
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 <http://www.homepower.com>

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 <michael.welch at homepower.com>
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