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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366">Ray and other Wrenches:</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366">I agree on all counts:</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo3"><span style="font-family:"Verdana","sans-serif";color:#993366"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Verdana","sans-serif";color:#993366">This is a field mod.</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo3"><span style="font-family:"Verdana","sans-serif";color:#993366"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Verdana","sans-serif";color:#993366">Not worth any effort (the arrays are temporary until a barn is built to hold the real solar).</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo3"><span style="font-family:"Verdana","sans-serif";color:#993366"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Verdana","sans-serif";color:#993366">Manually point it south-ish and forget it.</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo3"><span style="font-family:"Verdana","sans-serif";color:#993366"><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Verdana","sans-serif";color:#993366">Tracking arrays should be replaced with fixed arrays.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366">I was mostly just curious\u2026 and wanting to make sure I had not yet lost my mind out in the sun.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366">Thanks everyone.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366">William</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#993366"> </span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><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 [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Ray<br><b>Sent:</b> Wednesday, July 22, 2020 5:06 PM<br><b>To:</b> <a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a><br><b>Subject:</b> Re: [RE-wrenches] Tracker manual needed</span></p></div></div><p class="MsoNormal"> </p><p>I just took a look at your pics, its definitely a really old, modified Wattsun. You can see the primer paint where they welded the main square tube directly to the cap. You can also see the empty holes in the bracket on the right side of the tube, where the tilt adjuster would have mounted. It originally should have had a simple fixed N-S tilt adjustment, that was something like a DP&W head. IT also looks like its missing the pinch bolts that tighten the cap to the pole, but hard to tell. What are those modules, Old Siemens? </p><p>I'd just rotate it so the tilt adjust went N-S, and run the motor manually off a 12 v battery to set the seasonal tilt. Based on the age of the modules, and overall condition of the wiring (non UV rated zip ties, exposed THHN, etc) I wouldn't put a ton of time into it. I'm rebuilding old Top of Pole racks now with new modules, as the pole mount base and rack are easily worth more than the cost of new modules. </p><pre>Ray Walters</pre><pre>Remote Solar</pre><pre>303 505-8760</pre><div><p class="MsoNormal">On 7/22/20 3:53 PM, William Miller wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">Friends:</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">So far it looks like I have stumped all of you on identifying these trackers. </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">These trackers are trying to work. The electronics and motors are operable. Unlike the diagram below, these trackers do not have an inclined axis to allow the tracking to sweep from east to west with the panels inclined to compensate for latitude and season. </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">The trackers spun around their mounting poles and I simply want to know how to orient the axis so I can put them back to work:</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><span style="mso-list:Ignore">A.<span style="font:7.0pt "Times New Roman""> </span></span><span style="font-family:"Verdana","sans-serif";color:#1f497d">If I orient the axis N-S the tracker would track east to west with no tilt towards the south. </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><span style="mso-list:Ignore">B.<span style="font:7.0pt "Times New Roman""> </span></span><span style="font-family:"Verdana","sans-serif";color:#1f497d">If I orient the axis E-W the tracker would alter tilt angle as the day progressed, but never facing other than due south.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">This all seems strange, but maybe I just don\u2019t have my mind wrapped around the concept as applies to these units. Maybe these mounts were modified in the ancient past when they were installed. The original installer is no longer on this planet so he can\u2019t be asked.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">I created a web site to post all of the photos so anyone who is curious can look at full sized images. The web site is <a href="https://millersolar.com/MillerSolar/case_studies/26-Mystery_tracker/Mystery_Tracker.html">here</a>.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">Thanks everyone for trying to help. This is a real head scratcher.</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">William</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d">805-438-5600</span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><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 [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b><a href="mailto:larry@starlightsolar.com">larry@starlightsolar.com</a><br><b>Sent:</b> Wednesday, July 22, 2020 9:53 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Tracker manual needed</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal">William,</p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">This type of mount is a polar axis type and should be aligned with the pivot N-S. The actuator can then swing the array E-W. The attached photo is an example of how the mount was used in the C-band antenna days. (1980\u2019s for the young folks)</p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">It\u2019s hard to tell but it looks like the elevation bolt is missing that connects the azimuth bar to the pole mount cap. Can you supply a better photo of the mount? </p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">Set the elevation angle to latitude for best all year performance. Elevation can also be seasonally adjusted for more gain. </p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">There are 3 types of sensors most commonly used in this style of linear actuator. Hall effect, reed switch or a 10 turn potentiometer. </p></div><div><div><div><div><div><div><p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black"><br>Larry Crutcher<br>Starlight Solar Power Systems</span></p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt"> </p></div></div></div><p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:black"><img border="0" width="398" height="325" id="_x0037_0EE68A7-4F1D-491E-AF11-BF4AA06EAB66" src="cid:image001.png@01D66054.0C706460"></span></p></div><p class="MsoNormal" style="margin-bottom:12.0pt"> </p></div><div><p class="MsoNormal"> </p><div><p class="MsoNormal">On Jul 22, 2020, at 8:33 AM, William Miller <<a href="mailto:william@millersolar.com">william@millersolar.com</a>> wrote:</p></div><p class="MsoNormal"> </p><div><div><p class="MsoNormal">Dave:</p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">The trackers appear to work. I am not clear on what direction to orient them. Do you know?</p><div><p class="MsoNormal">William Miller</p><div><div><p class="MsoNormal"><a href="http://www.millersolar.com">www.millersolar.com</a></p></div></div></div><div><p class="MsoNormal"> </p></div></div></div></div></div><p class="MsoNormal"> </p></div><p class="MsoNormal"><br><br></p><pre>_______________________________________________</pre><pre>List sponsored by Redwood Alliance</pre><pre> </pre><pre>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a></pre><pre> </pre><pre>Change listserver email address & settings:</pre><pre><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></pre><pre> </pre><pre>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></pre><pre> </pre><pre>List rules & etiquette:</pre><pre><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a></pre><pre> </pre><pre>Check out or update participant bios:</pre><pre><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a></pre><pre> </pre></blockquote></div></body></html>