<p>Look at the recent Grundfos Scala2 recall, they have sold some really bad pumps, so AC is not always best. For Offgrid a spare inverter is often called for because critical systems do need back-up. Many applications/requirements are different.</p>
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<div class="JpTGae">Grundfos scala2 pump recall</div>
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<div class="LGOjhe" data-attrid="wa:/description" data-hveid="CAoQAw"><span class="ILfuVd NA6bn"><span class="hgKElc">They have been <strong>recalling</strong> or "updating" all VFD type <strong>pumps</strong> for 30+ years now. It is all part of their planned obsolescence. The more electronics you have in a <strong>pump</strong> system, the less likely water is to come out of a faucet when opened, and the more it is going to cost you</span></span></div>
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<p>Winter is coming :)</p>
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<pre><strong><span style="font-size: small;">Dave Angelini Offgrid Solar
"we go where powerlines don't"
<a href="http://members.sti.net/offgridsolar/" target="_blank">http://members.sti.net/offgridsolar/</a>
e-mail <a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
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<p>On Thu, 17 Sep 2020 09:30:43 -0600, Ray <ray@solarray.com> wrote:</p>
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<p>Actually best of all: you don't have to run low voltage DC circuits to the pump room. Another thing about the ECM drive pumps, they have much higher flow rates available than the El Cids. And if you're worried about your old school street cred in the off grid world, they are still technically DC at the drive, for those old timers that insist on DC.</p>
<pre class="moz-signature">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 9/17/20 6:54 AM, Dana Orzel wrote:</div>
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<p class="MsoNormal"><span style="font-size: 14.0pt;">I have El-cids in stock & am selling them off.<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 14.0pt;">I have switched to the new AC technology that Grundfoss & TACO offer. They are called ECM pumps. Electronically Commutated Pump motors. AC-DC motors, soft start, variable speed, super-efficient, best of all very QUIET!<!-- o ignored --></span></p>
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<p class="MsoNormal"><span style="font-size: 14.0pt;">Dana Orzel Great Solar Works, Inc. <!-- o ignored --></span></p>
<p class="MsoNormal"><strong><span style="font-size: 14.0pt;">C - 208.721.7003 <a class="moz-txt-link-abbreviated" href="mailto:dana@solarwork.com">dana@solarwork.com</a><!-- o ignored --></span></strong></p>
<p class="MsoNormal"><span style="font-size: 14.0pt;">Idaho Contractor - # 028765 Idaho PV # 028374<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 14.0pt;">NABCEP # 051112-136 <a href="http://www.solarwork.com/"><span style="color: blue;">www.solarwork.com</span></a><!-- o ignored --></span></p>
<p class="MsoNormal"><span style="text-decoration: underline;"><span style="font-size: 14.0pt;">"Responsible Technologies for Responsible People since 1988" </span></span><span style="text-decoration: underline;"><span style="font-size: 14.0pt;"><!-- o ignored --></span></span></p>
<p class="MsoNormal" style="background: white;"><strong><span style="font-size: 18.0pt; font-family: Webdings; color: green;">P</span></strong><span> </span><span style="font-size: 10.0pt;">Please consider the environment before printing this email.</span><span><!-- o ignored --></span></p>
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