<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;">Awesome responses thank you! And yes I did mix up the IO-101 operating voltage with the CU200. <div><br></div><div>So because efficiency is important we’ll keep the CU200 in the system. </div><div><br></div><div>Client wants a large pressure tank because of garden irrigation so we're looking at an 86 gallon model so pump will not cycle as frequently and pump efficiency will optimize with longer running times. Aside from bulk and weight problems of the tank I don’t foresee any other issues. Appreciate comments if otherwise.<div><br></div><div>Ron Young</div><div><br></div><div><div>On Oct 20, 2014, at 7:55 PM, <a href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="font-family: Candara; font-size: 18px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><font face="arial" size="2"><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;">"<span style="font-size: 10pt;">If you are not going to be using a PV-direct arrangement, there is </span><span style="font-size: 10pt;"> not much advantage in using the Flex pumps."<br></span></div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><span style="font-size: 10pt;"><br>except efficiency. i have two wells at home and the grundfos sqflex pumps 50' of additional head at the same flow rate, using 30% less energy as compared to the standard, 3/4 hp pump down the other hole..</span></div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><span style="font-size: 10pt;">and yes, the cu200's label says up to 240 vac is fine.</span></div><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><span style="font-size: 10pt;">as long as he has it, why not run the power through it?</span></div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"> </p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><span style="font-size: 10pt;">todd</span></div><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"> </p><p style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"> </p><p style="margin: 0px; padding: 0px;"><span style="font-size: 10pt;"></span></p><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><br><br><span style="font-size: 10pt;">On Monday, October 20, 2014 7:24pm, "Brian Teitelbaum" <<a href="mailto:bteitelbaum@aeesolar.com">bteitelbaum@aeesolar.com</a>> said:</span><br><br></div><div id="SafeStyles1413859698"><div style="margin: 0px; padding: 0px; font-family: arial; font-size: 14pt; word-wrap: break-word;"><span style="font-size: 10pt;">> Hi Ron,</span><br><span style="font-size: 10pt;">><span class="Apple-converted-space"> </span></span><br><span style="font-size: 10pt;">> What you describe with using a pressure switch and pressure tank, and just</span><br><span style="font-size: 10pt;">> running the pump with 240 VAC, is fine. You don't need the CU-200 to do</span><br><span style="font-size: 10pt;">> any of that, if all you are doing is switching AC. The diagnostics is</span><br><span style="font-size: 10pt;">> nice, but probably not worth the cost in this kind of simple setup.</span><br><span style="font-size: 10pt;">><span class="Apple-converted-space"> </span></span><br><span style="font-size: 10pt;">> One issue though. The SQFlex pumps are not exactly instant-on. There is a</span><br><span style="font-size: 10pt;">> slight delay between when power is applied and the pump starts. Just make</span><br><span style="font-size: 10pt;">> sure that you use a large enough pressure tank to keep the pressure from</span><br><span style="font-size: 10pt;">> dropping too far before the pump starts filling it. You may have to raise</span><br><span style="font-size: 10pt;">> the starting pressure on the switch a little above where you set the</span><br><span style="font-size: 10pt;">> minimum pressure, to let it fall some at startup.</span><br><span style="font-size: 10pt;">><span class="Apple-converted-space"> </span></span><br><span style="font-size: 10pt;">> When it becomes time to replace the pump (hopefully many years from now),</span><br><span style="font-size: 10pt;">> I would just go with a Grundfos SQ straight AC pump instead of the Flex</span><br><span style="font-size: 10pt;">> model. If you are not going to be using a PV-direct arrangement, there is</span><br><span style="font-size: 10pt;">> not much advantage in using the Flex pumps.</span><br><span style="font-size: 10pt;">><span class="Apple-converted-space"> </span></span><br><span style="font-size: 10pt;">> Brian Teitelbaum</span><br><span style="font-size: 10pt;">> AEE solar</span><br><span style="font-size: 10pt;">></span></div></div></font><br><br><br>Sent from Finest Planet WebMail.<br>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & 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://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</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 or update participant bios:<br>www.members.re-wrenches.org</div></blockquote></div><br></div></body></html>