<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hilton,<div><br></div><div>Magnum Energy also has a single 4400 VA model, the MS4448PAE, that operates 120/240 split phase. It can provide 8500 Watts for 5 seconds and 40 amps (line to line) for 100ms. This might start the 3HP motor load assuming it is 240 volt induction motor and not a capacitor start. Also assuming no other high loads are operating. See if you can find out (letter code on motor) or test for the LRA of the motor.</div><div><br></div><div>(Allan) Battery voltage dip is proportional to load/battery capacity. I install lots of Magnum product but I have not experienced voltage dip with large loads starting. Perhaps it was related to waveform and the CFL's. Magnum Energy products are designed and built in the uSA and have been the best and most reliable inverters that I have experienced so my vote is for Magnum.</div><div><br></div><div>Larry</div><div><br></div>
<br><div><div>On Oct 30, 2013, at 7:57 AM, Allan Sindelar <<a href="mailto:allan@positiveenergysolar.com">allan@positiveenergysolar.com</a>> wrote:</div><br class="Apple-interchange-newline">
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<div class="moz-cite-prefix">Hilton,<br>
Kevin's comments are well taken. To add a bit:<br>
<br>
Magnum are exceptionally easy to set up and program. The user
interface is well designed. A few issues to be aware of from my
experience: <br>
- All of our Magnum-based off grid systems have been single
inverter. At 4 kW, a single inverter may not be enough for that
particular 3hp motor - best to CYA with the customer on the
possible need for a stacked pair. <br>
- Magnum allows a pretty wide voltage dip to accomplish surge
capacity, so when the saw starts, expect lights to flicker. Our CF
bulbs flicker when the refrigerator starts.<br>
<br>
Our trial with Apollo a couple of years ago was probably the
single most negative experience with an inverter manufacturer of
my career. Kevin's comment that the most basic programming
required hooking up to a computer is accurate. The computer must
have their proprietary software installed, and the hookup was
necessary even to initiate an equalize charge from an AC source.
We have several warranty replacement and takeout units on a shelf
here, from two installations (including in my own home) where the
equipment was replaced after being unable to get it to work
reliably. Ultimately, Apollo agreed in writing to reimburse us for
the cost to replace their equipment with another brand. They never
came through. <br>
<br>
Allan<br>
<br>
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<div class="Section1"><p class="MsoNormal"><b>Allan <span class="SpellE">Sindelar</span></b><br>
<span style="font-size:10.0pt"><a href="mailto:Allan@positiveenergysolar.com"><u><span style="color:#000099">Allan@positiveenergysolar.com</span></u></a></span><br>
<span style="font-size:10.0pt">NABCEP Certified PV
Installation Professional<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder, <b>Positive Energy, Inc.<o:p></o:p></b></span></p><p class="MsoNormal"><span style="font-size:10.0pt">A
Certified B <span class="SpellE">Corporation<sup><span style="font-size:7.5pt">TM</span></sup></span><br>
<st1:address w:st="on"><st1:street w:st="on">3209
Richards Lane</st1:street><br>
<st1:city w:st="on">Santa Fe</st1:city>, <st1:state w:st="on">New Mexico</st1:state> <st1:postalcode w:st="on">87507</st1:postalcode></st1:address><br>
<b>505 424-1112 office 780-2738 cell</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></p><div><br></div></div></o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></div>
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<blockquote cite="mid:EC7EE410EA8C24449CDC59F7D9080D5202050C33@affirmativecomputer.com" type="cite">
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<blockquote dir="ltr" style="MARGIN-RIGHT: 0px"><div class="OutlookMessageHeader" dir="ltr" align="left"><font face="Tahoma" size="2">-----Original Message-----<br>
<b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]<b>On
Behalf Of </b>Hilton Dier III<br>
<b>Sent:</b> October 29, 2013 6:48 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a><br>
<b>Subject:</b> [RE-wrenches] To stack or not to stack?
Off-grid 240V<br>
<br>
</font></div>
<font face="Times New Roman, Times, serif">Hello Wrenches,<br>
<br>
I have an off-grid client with a 24V system and an old Xantrex
SW4024. He wants 240VAC capability with enough oomph for
sometimes making a cut with his 3 hp table saw without
starting the generator.<br>
<br>
I am looking at Apollo, Magnum, and Outback inverters. I'm
most familiar with Outback. I have a couple of installations
out there with stacked 3.6 kW Outbacks.<br>
<br>
However, the Apollo marketing promises that their 3.2 kW
inverter will start a 3 hp motor. Will it actually, and is
this a good idea even if it can?<br>
<br>
I'd appreciate hearing about your experiences with 240V Apollo
units, stacked Magnums, and stacked Outbacks. I know from
experience that the Outbacks require some hundreds of dollars
of extra fittings and electronics to make a proper stacked
installation. How about Magnum? Any comments on reliability?<br>
<br>
Many Thanks,<br>
<br>
Hilton <br>
</font>
<pre class="moz-signature" cols="72">--
Hilton Dier III
Renewable Energy Design
Partner, Solar Gain LLC
453 East Hill Rd.
Middlesex, VT 05602</pre></blockquote></blockquote></div></div><br></body></html>