[RE-wrenches] older magnum MS

[Baxter, Gary]

Sorry for the late reply. I did confirm what our customer support said which is the PAE models had the search mode setting improved but that was about it.

In the case of sensitive controls it is most likely distortion causing the issue. As suggested a 50mf cap at the appliance sometimes can help.

There is a big difference in the waveform verses the old SW. The Magnum switches at 40kHz so not the obvious steps the SW had but switching still creates noise and may be sensitive to some controls.

Gary Baxter
Marketing Manager
Magnum/Dimensions


On Feb 12, 2015, at 4:58 PM, Allan Sindelar <allan at sindelarsolar.com<mailto:allan at sindelarsolar.com>> wrote:

Jay,
I can't answer your question, but only relate that I had a similar experience.

An early Magnum MS4448AE would not reliably start and run a modern hydronic boiler in an off grid home. I had opened a case with Magnum tech support, but the frustrated HVAC contractor pulled the unit and installed a different brand of boiler and the problem disappeared.

In my own home my MS4024AE has nothing it won't run, and it's a newer unit. But whether that's coincidental or the result of an inverter firmware or hardware upgrade, I can't say. Maybe Gary Baxter can?
Allan

Allan Sindelar
allan at sindelarsolar.com<mailto:allan at sindelarsolar.com>
NABCEP Certified PV Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
505 780-2738 cell


On 2/12/2015 2:13 PM, jay peltz wrote:

HI All,

I"ve had someone ask me about the following magnum and I know there are many more experienced folks that maybe can chime in.

MS4448
V1-00138
2007


The problem is that for the life of the inverter it hasn't worked well for things like digital/electronic washer/dryers, even glow bar ovens etc.
I don't have all the specifics yet and haven't visited the site.

With new units I've not seen this.  Are there some issues with these older units?
And if so, any fixes?

thanks

jay

peltz power


_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at lists.re-wrenches.org<mailto:RE-wrenches at lists.re-wrenches.org>

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm<http://www.re-wrenches.org/etiquette.htm>

Check out or update participant bios:
www.members.re-wrenches.org<http://www.members.re-wrenches.org>




_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at lists.re-wrenches.org<mailto:RE-wrenches at lists.re-wrenches.org>

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm<http://www.re-wrenches.org/etiquette.htm>

Check out or update participant bios:
www.members.re-wrenches.org<http://www.members.re-wrenches.org>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150216/25299a18/attachment-0002.html>