[RE-wrenches] 24V Zephyr Vent Fan from a Magnum MS4024PAE inverter

[Ray Walters]

The Magnums do not have relays available like the old SWs, but you can 
run a Zephyr directly from either a Outback FM controller or a Midnite 
Classic.  Both have a controlled 200 mA, 12 output.  I've had occasional 
trouble running the Zephyr because as weird as this sounds: the fan can 
have a start up surge that exceeds 200 mA.  Its like sizing a water pump 
for mice.....you still have to look at the locked rotor current and 
surge current.  With the Midnite Classic, it will just shut off the 12 v 
output if it exceeds 200 mA, and it doesn't seem to have an error 
message or warning.
You could also use a Simple Switch, or other voltage controlled 
switching device (C40, Tristar,  Solar Converters, etc)

R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760

On 1/7/2015 8:45 AM, Chris Daum wrote:
> Dear folks:
> Has anyone hooked up a battery vent fan, being turned on and off using 
> just a Magnum MS4024PAE inverter?  Is there some AUX output that can 
> be used?
> Thanks as always for your help!
> Chris Daum
> Oasis Montana Inc.
> 406-777-4309
> www.oasismontana.com <http://www.oasismontana.com>
>
>
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