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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>This is based on an inverter that can be mounted outdoors. Here we cannot mount outdoors and inverters have to be indoors even if it is just a shed due to temp ratings -30 F one many years ago. Most inverters are rated to -14F.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>We have to install an AC disconnect external even if the main AC panel is out doors and the breaker could or would serve as the point of disconnect.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'>What does your AHJ require in the colder climates?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>Dana Orzel<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>Great Solar Works, Inc<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>E - dana@solarwork.com<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>V - 970.626.5253<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>F - 970.626.4140<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>C - 970.209.4076<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>web - www.solarwork.com<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>"Responsible Technologies for Responsible People since 1988"</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Century Gothic","sans-serif"'>Do not ever believe anything, but seriously trust through action.<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif"'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Al Frishman<br><b>Sent:</b> Thursday, January 13, 2011 9:24 AM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> Re: [RE-wrenches] 690.14 (4) Max Number of Disconnects<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Mark,<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>See answers to your questions below:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>Al Frishman</span></i><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><br></span><span style='font-size:13.5pt'>AeonSolar</span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>(917) 699-6641 - cell</span></i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'><br><i>(888) 460-2867</i><br><i><a href="http://www.aeonsolar.com/">www.aeonsolar.com</a></i></span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal align=center style='margin-left:.5in;text-align:center'><i><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></i></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Mark Frye<br><b>Sent:</b> Wednesday, January 12, 2011 5:26 PM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> Re: [RE-wrenches] 690.14 (4) Max Number of Disconnects<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>OK,</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>So what is your plan with regard to 690.14 (D)?</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><b><span style='color:#1F497D'>All inverters will have a integrated DC disconnect and I will install a AC Disco. next to each inverter.<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>It is interesting to ask, do the disconnects required by 690.14 (D) also have to comply with or be counted in with 690.14 (4) and (5).</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>690.13 and 690.14 are pretty confusing in the use of the term disconnect. Which sections apply to the disconnecting DC PV source circuits and which sections apply to AC PV system circuit, which to both? Can the switches integrated into some inverter by the manufacturer be regarded as the disconnects required in these sections?</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>Here is my take: The fused disconnect in the basement is the PV system disconnecting means of which there is only one. This switch meets the requirements of 690.15 "...A single disconnecting means in accordance with 690.17 shall be permitted for the combined ac output of one or more inverters or ac modules in an interactive system." It meets the requirements 690.14 (C) (1) Exception so long as you comply with 690.31 (E). You still need additional disconnects on the roof and labelling in accordance with 690.14 (D), but they don't have to comply with 690.14 (4) (5) so long as there ac outpust are routed thru the 8th floor load center and thru the switch in the basement.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:blue'>I assume that the fused disconnect is co-located in the basement with the service equipment?</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'>yes<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Mark Frye</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Berkeley Solar Electric Systems</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>303 Redbud Way</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Nevada City, CA 95959</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>(530) 401-8024</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br><a href="http://www.berkeleysolar.com/"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.berkeleysolar.com</span></a></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Al Frishman<br><b>Sent:</b> Wednesday, January 12, 2011 1:55 PM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> Re: [RE-wrenches] 690.14 (4) Max Number of Disconnects</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Hi Mark,<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Two will be in the same room as the panel and the rest will be located on different sections of roof.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'>Al<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>Al Frishman</span></i><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><br></span><span style='font-size:13.5pt;font-family:"Microsoft Sans Serif","sans-serif"'>AeonSolar</span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>(917) 699-6641 - cell</span></i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'><br><i>(888) 460-2867</i><br><i><a href="http://www.aeonsolar.com/">www.aeonsolar.com</a></i></span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal align=center style='margin-left:.5in;text-align:center'><i><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></i></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Mark Frye<br><b>Sent:</b> Wednesday, January 12, 2011 4:49 PM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> Re: [RE-wrenches] 690.14 (4) Max Number of Disconnects<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Al,</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Are the inverters located inside on the 8th floor with the MLP panel or are they located on the roof?</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Mark Frye</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Berkeley Solar Electric Systems</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>303 Redbud Way</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Nevada City, CA 95959</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>(530) 401-8024</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <br><a href="http://www.berkeleysolar.com/"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.berkeleysolar.com</span></a></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p></div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Al Frishman<br><b>Sent:</b> Wednesday, January 12, 2011 1:11 PM<br><b>To:</b> re-wrenches@lists.re-wrenches.org<br><b>Subject:</b> [RE-wrenches] 690.14 (4) Max Number of Disconnects</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'>Hi Wrencher’s<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'>I am working on a system with 10 inverters. The output of all 10 single phase inverters will be combined in a main lug only panel located on the 8<sup>th</sup> floor (each inverter will have a 2 pole breaker). The MLO Panel will be protected by a fused switch located in the basement. Does the panel on the 8<sup>th</sup> floor used to combine all 10 inverters need to have a main breaker in order to comply with 690.14 (4)? <o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Any and all feedback is appreciated.<o:p></o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>Al Frishman</span></i><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><br></span>AeonSolar<span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'>(917) 699-6641 - cell</span></i><span style='font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black'><br><i>(888) 460-2867</i><br><i><a href="http://www.aeonsolar.com/">www.aeonsolar.com</a></i></span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal align=center style='margin-left:.5in;text-align:center'><i><span style='font-size:14.0pt'><o:p> </o:p></span></i></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div></body></html>