<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">William,<div>One other option, if the AV crew can see the light, is replace the UPS with an inverter like Magnum MS1012 and a separate battery equal to the UPS capacity. The Magnum has broad input voltage and should the SB fail to provide power, the transfer time is likely fast enough (16ms) to replicate the UPS. Use a high Vac dropout setting in this case.<div><br></div><div>Just trying to think outside the box. I’ve done this in RV’s and it works fine.<br><div><br></div><div>Larry<br>
<br><div><div>On Aug 16, 2014, at 1:03 PM, William Miller <<a href="mailto:william@millersolar.com">william@millersolar.com</a>> wrote:</div><br class="Apple-interchange-newline"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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</o:shapelayout></xml><![endif]--><div lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">Friends:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">I met with the AV crew yesterday. They are completely unwilling to run the system without a UPS. I have some choices:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">See if we have a real problem, and if so, how bad is it?<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">Temporarily disable the Sunny Boy inverters to see if eliminating the Frequency Shift Power Control (FSPC) makes the UPS happier. I have done this and am waiting for results.<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">If the above creates good results, consider removing the Sunny Boy inverters and rely on direct DC battery charging, maybe by using Morningstar MPPT-600 charge controllers.<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">Find out if the inverters, generator or both are causing a problem.<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">If it is the generator, have it repaired or try to reprogram the Sunny Island inverters to disable transfer and utilize battery charging only. Has anyone done this?<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">6.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">If it is the inverters, have them repaired or select another product.<o:p></o:p></span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span style="font-family:"Arial","sans-serif";color:#1F497D"><span style="mso-list:Ignore">7.<span style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span style="font-family:"Arial","sans-serif";color:#1F497D">If I am confident that power quality is adequate, mute the UPS and ignore it.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">I will let you know how this progresses because I think there is interest and others have experienced similar problems.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D">William<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><div><p class="MsoNormal"><span style="font-size: 10pt; font-family: Arial, sans-serif;"><span><image001.jpg></span><br>Lic 773985<br><a href="http://www.millersolar.com/"><span style="color:blue">millersolar.com</span></a><br>805-438-5600<o:p></o:p></span></p></div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#1F497D"> </span></p><div></div><p class="MsoNormal"><br></p></div></div></div></div></div></div></div></body></html>