[RE-wrenches] Magnum Energy 120/240 inverter problem.

[robert ellison]

I have one at a camp that we started last weekend at -20 F
Try the remote to turn it on if you have one.

If you start a generator will it pass power through and charge the
batteries?
Any chance you have a 24 volt bank and a 48 volt inverter or the opposite?
Might it be that the push switch is not happy with the temp?
I have a lot of these out there with no problems except the self infilcted
type.
(That happens when you sand drywall around a 1212 inverter for 3 years and
never clean the dust out of it...)

I have recently seen one shut off when charging because the temp in the room
got too high.  Between the sun and the inverters heat it got real hot in
that little room.

Ine thing i have noticed is the Outbacks switch from generator to battery
and back faster, The lights don't blink, on the Magnums they blink. Not
enough to drop a computer but noticable.

Everyone please have a good Christmas, i am stuck in BWI Airport waiting for
a flight.


Bob

On Thu, Dec 24, 2009 at 1:03 PM, Lance Barker <lance.b at centurytel.net>wrote:

> I have a number of these Magnum sine wave inverters (various models) out in
> locations where the inverter undoubtedly gets very cold at times.  I do not
> know if this matters, but all of my Magnum inverters have a "remote" as part
> of the installation, even if it is usually right there.  Last week, for an
> absentee owner, I went out on-site where AC electricians worked on the AC
> distribution. The Magnum MS AE 240V in an unheated power shed, as well as
> myself, were very cold by the time they were done. It restarted from the
> remote with no problem.
> Until reading John's question I had forgotten that one time I tried to
> start my own Magnum in my workshop (which is only sometimes heated by wood)
> from the little button, and it did not start.  I had the remote unhooked for
> some reason. I plugged it in, and the inverter started from the remote. I
> never gave it another thought.
> I also would be curious about similar serial number and manufactures dates
> as Warren has pointed out, hope this helps. These have been very good
> inverters for us in many applications. My home system has a pair of OutBack
> FXs.
>
> Lance Barker
> Morning Hill
> Canyon City, Oregon
> 541-542-2525
>
>
> Warren Lauzon wrote:
>
> That is a problem we have not seen before with those inverters, though not
> unheard of with electronics in general. From my experience it is usually due
> to an electrolytic capacitor being out of spec (or wrong one)., but can also
> be from some solid state component, or even the main processor or ROM being
> out of spec for temperature.
>
> I would be curious if the inverters are all similar serial numbers and when
> they were manufactured.
>
>
>
> ..................................................................................................
> Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
> Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
>
> ..................................................................................................
>
> ----- Original Message -----
> *From:* CVSOLAR at aol.com
> *To:* re-wrenches at lists.re-wrenches.org
> *Sent:* Wednesday, December 23, 2009 8:55 PM
> *Subject:* [RE-wrenches] Magnum Energy 120/240 inverter problem.
>
>   HAS ANYONE HAD GOOD LUCK WITH THIS MODEL IN A COLD ENVIRONMENT OR
> STARTING PROBLEMS AT ANY TEMPERATURE?
>
>
> John Blittersdorf
> NABCEP Certified Solar PV Installer tm
> Central Vermont Solar & Wind, LLC.
> 104 River Street
> Rutland, VT 05701
>
> 802-747-0577
> 802-773-0924 fax
> 802-770-8625 cell
> www.cvsolar.com
>
>
>
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