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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>I would suggest the best gear for the situation and just refuse to use the substandard stuff, if you can. It\u2019s not worth a fire or worse. <o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>I have lost jobs for not letting the customer spec gear for me, I get over it.<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>I either do it right or not at all.<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>Later,<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>Bob Ellison<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></font></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><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><span style='font-weight:bold'>On Behalf Of </span></b>JRQ<br><b><span style='font-weight:bold'>Sent:</span></b> Saturday, December 31, 2011 1:47 PM<br><b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br><b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] battery venting<o:p></o:p></span></font></p></div></div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>I am doing this project in India. The cost structures here are a great deal more constrained that what we're used to. Using AGM batteries is going to be a deal-breaker with the client as far as cost. <o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>I also don't know if I can persuade the client to ship anything additional from the US. We pay more for electrical stuff, and then shipping adds quite a bit more on top. I've sold them on the idea of an Outback GTFX inverter on the basis of its functionality in a backup setup, but, for instance, I'm having a hard time convincing them that an E-Panel and a listed combiner box are a good idea, rather than just cobbling the BOS enclosures together from locally available breakers and PVC j-boxes. I also may end going with a indian-made PWM CC rather than a FM60. The quality of electrical work here is abysmal. I'm not sure if I can successfully make an argument on the grounds of somewhat contingent safety concerns, or even less on engineering standards.<o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>So I'm wondering: are there parameters that constrain the bending of a venting pipe and the maximum angle from plumb that the pipe should take? And does the pipe diameter play a role in those parameters?<o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>Jeffrey Quackenbush<o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>NABCEP Certified PV Installer<o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>Peripatetic Solar Technician<o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><hr size=1 width="100%" align=center></span></font></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;font-weight:bold'>From:</span></font></b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Allan Sindelar <<a href="mailto:allan@positiveenergysolar.com">allan@positiveenergysolar.com</a>><br><b><span style='font-weight:bold'>To:</span></b> <a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a> <br><b><span style='font-weight:bold'>Sent:</span></b> Saturday, December 31, 2011 8:42 PM<br><b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] battery venting</span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p><div id=yiv525350511><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'>Jeff,<br>I would use a Power Vent by Zephyr Industries. In addition to a 12V or 48V fan, his units have a built-in backdraft damper. Negative building pressure under certain conditions would be a concern of mine, so I wouldn't rely on angle to ensure exhaust always travels up and out.<br>Allan<o:p></o:p></span></font></p><div><p class=MsoNormal style='background:white'><b><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black;font-weight:bold'>Allan Sindelar</span></font></b><font color=black><span style='color:black'><br></span></font><font size=2 color=black><span style='font-size:10.0pt;color:black'><a href="mailto:Allan@positiveenergysolar.com" target="_blank"><font color="#000099"><span style='color:#000099'>Allan@positiveenergysolar.com</span></font></a></span></font><font color=black><span style='color:black'><br></span></font><font size=2 color=black><span style='font-size:10.0pt;color:black'>NABCEP Certified Photovoltaic Installer<br>NABCEP Certified Technical Sales Professional<br>New Mexico EE98J Journeyman Electrician<br><b><span style='font-weight:bold'>Positive Energy, Inc.</span></b><br>3201 Calle Marie<br>Santa Fe, New Mexico 87507<br><b><span style='font-weight:bold'>505 424-1112</span></b><br><a href="http://www.positiveenergysolar.com/" target="_blank">www.positiveenergysolar.com</a></span></font><font color=black><span style='color:black'> <o:p></o:p></span></font></p><div style='margin-right:722.25pt'><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>On 12/31/2011 7:59 AM, JRQ wrote: <o:p></o:p></span></font></p><div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>Wrenches,</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>I'm looking at a potential battery backup system wtih a 200 AH @48V flooded battery bank in the basement electrical room of a 3 story building. There is a window in the electrical room. The batteries will be located about 10' from an outdoor wall. The building is all reinforced concrete, so I can not run a vent pipe vertically from the batteries. Does anyone have a rule of thumb for how much the vent pipes can be angled from the batteries? Would it be more lenient for short sections of pipe (say <2') versus one long angled piece from the batteries? My instinct would be to keep the pipe no more than 45\u02da from plumb.</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>Or with bending the vent pipe: does anyone have a best-practice rule for the sum of the angles of bends?</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>Thanks,</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>Jeffrey Quackenbush</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>NABCEP Certified PV Installer</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><span class=yiv525350511apple-style-span><font size=1 color="#454545" face=Arial><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#454545'>Peripatetic Solar Technician</span></font></span><font color=black><span style='color:black'><o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><hr size=1 width="100%" align=center></span></font></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;font-weight:bold'>From:</span></font></b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> Drake <a href="mailto:drake.chamberlin@redwoodalliance.org" target="_blank"><drake.chamberlin@redwoodalliance.org></a><br><b><span style='font-weight:bold'>To:</span></b> <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a> <br><b><span style='font-weight:bold'>Sent:</span></b> Saturday, December 31, 2011 8:08 PM<br><b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Pole Mount PVC</span></font><font color=black face=Times><span style='font-family:"Times","serif";color:black'><o:p></o:p></span></font></p><div id=yiv525350511><div><p class=MsoNormal style='background:white'><font size=3 color=black face=Times><span style='font-size:12.0pt;font-family:"Times","serif";color:black'>Hello Wrenches,<br><br>With pole mount systems, It looks cleaner and is safer to run the PVC conduit down the pole into the concrete, and use a 90 degree elbow to come out through the side of the anchor underground. This way, the pipe is protected from mechanical damage, and there is nothing to trip over when adjusting the array for seasonal tilt. <br><br>I was told that some building departments will not allow this. Has anyone had a problem with using this method, either technical or legal? How do you like to route your conduits?<br><br>Thank you,<br><br>Drake <o:p></o:p></span></font></p><div><p class=MsoNormal style='background:white'><font size=2 color=black face=Times><span style='font-size:10.0pt;font-family:"Times","serif";color:black'>Drake Chamberlin <br>ATHENS ELECTRIC LLC<br>OH License 44810 <br>CO license 3773<br>NABCEP Certified PV</span></font><font color=black face=Times><span style='font-family:"Times","serif";color:black'><o:p></o:p></span></font></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><font size=3 color=black face=Times><span style='font-size:12.0pt;font-family:"Times","serif";color:black'><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br><br><br><o:p></o:p></span></font></p></div></div></div><pre style='background:white'><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></pre><pre style='background:white'><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;color:black'>_______________________________________________<o:p></o:p></span></font></pre><pre 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</o:p></span></font></pre></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br><br>Check out participant bios:<br><a 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