Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

Allan, I have a recent power issue come up with a Magnum inverter. A customer tried to operate her Splindide washer/dryer but the motor would not start. I looked at the waveform with a scope and RMS voltage and frequency were fine. The waveform looked good until the motor tried to start.

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

Seems that I remember that the APC and other backups are not a sine wave but a modified wave? But it's been a while. Bob On Wed, Feb 11, 2009 at 9:52 AM, Howie Michaelson wrote: > I installed an off-grid system with identical symptoms: > > OB VFX 3648 dual stack > Buderus GB142-24 > Kohler 12 kW

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

Wrenches, Thank you to you Wrenches who have responded. Keep them coming; I'm collating all as part of our customer support on this. We have several ideas to try out. Darryl, it's not excessive draw. I had a Kill-a-Watt on the AC input during on-site testing. I saw a momentary peak of 360W (for al

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

nches] Magnum MS4448AE Compatibility Question I installed an off-grid system with identical symptoms: OB VFX 3648 dual stack Buderus GB142-24 Kohler 12 kW propane genny The boiler runs fine on the inverter power, but will occasionally error out (6A) and shut down while the generator is ru

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

I dont' know if you can power just the part this is giving problems and not the big load which is pumping? but had a similar problem with an SW trace. I installed a Exeltech inverter to power that load specifically and ever since has worked fine. The guys at Exeltech make a wave form that ev

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

I installed an off-grid system with identical symptoms: OB VFX 3648 dual stack Buderus GB142-24 Kohler 12 kW propane genny The boiler runs fine on the inverter power, but will occasionally error out (6A) and shut down while the generator is running (usually after it has been on for hours). The p

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

shape. Darryl --- On Wed, 2/11/09, boB Gudgel wrote: > From: boB Gudgel > Subject: Re: [RE-wrenches] Magnum MS4448AE Compatibility Question > To: "RE-wrenches" > Date: Wednesday, February 11, 2009, 12:03 AM > Peter Parrish wrote: > > > > As an old

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

31 PM *To:* al...@positiveenergysolar.com; RE-wrenches *Subject:* Re: [RE-wrenches] Magnum MS4448AE Compatibility Question Hi Allan, This is not an unusual problem. i have seen it with conventional forced air heating systems. The burner controls would not run on A Xantrex or Outback sine wave inv

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

enches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Katz Sent: Monday, February 09, 2009 9:31 PM To: al...@positiveenergysolar.com; RE-wrenches Subject: Re: [RE-wrenches] Magnum MS4448AE Compatibility Question Hi Allan, This is not an unusual problem. i have se

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

David Katz wrote: Hi Allan, This is not an unusual problem. i have seen it with conventional forced air heating systems. The burner controls would not run on A Xantrex or Outback sine wave inverter. There is something about waveforms from inverters designed by Trace legacy engineers. I had

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

Hi Allan, This is not an unusual problem. i have seen it with conventional forced air heating systems. The burner controls would not run on A Xantrex or Outback sine wave inverter. There is something about waveforms from inverters designed by Trace legacy engineers. I had to put in Exeltech

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

Have you tried a different SW inverter at the site? There is a difference between brands. Also, have you tried a "clean" wave form gennie like the Honda inverter series. Finally I don't think that most manufacturers will guarantee that their wave form will power a specific load. Regards

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

I wonder if a work around might be to run the igniter off a relay activated by the original board and fed by the inverter direct? I have seen things not start when the charger was drawing off the generator, not Magnums but old Hearts. Bob On Mon, Feb 9, 2009 at 1:16 PM, Allan Sindelar < al...@po

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

I use a lot of these Magnum 4448's and have never had any trouble like that. i did have some real odd behavior out of the first 3 i installed and we worked with magnum to get a software upgrade that would handle surge better. Mine where falling off for a lenghtly period of time when a heavy load

Re: [RE-wrenches] Magnum MS4448AE Compatibility Question

I second Dana's response. I have observed that the MS4448 waveform quality degenerates quite rapidly with imbalanced loading of one or the other of the 120 volt output legs. I can't give a quantitative (% distortion/amps) number to it, but I would classify it as severe. I first noticed it wh

[RE-wrenches] Magnum MS4448AE Compatibility Question

e-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Monday, February 09, 2009 11:16 AM To: RE Wrenches Subject: [RE-wrenches] Magnum MS4448AE Compatibility Question Wrenches, We have an unusual problem, and I need to know if anyone else has had this

[RE-wrenches] Magnum MS4448AE Compatibility Question

Wrenches, We have an unusual problem, and I need to know if anyone else has had this or a related problem, and what to do about it. This concerns a new off-grid residential system, very conventional: 1,800W PV, Midnite E-Panel with Magnum MS4448-AE inverter, MX60, 16 S-460s, installed summer 2008.