<p dir="ltr">Team Wrenches,<br>
For the about 6 to 7 years l used 3 versions, untill semi retiring, PV assisted, PV Direct and 48 VDC units, PV Assisted is a hybrid car, either works, PV direct works with sun, no sun no AC, the 48 vdc version is great for off grid applications, did many in Hawaii, DC to DC simple, so what l am saying it all depends on what you actually have just cuz it says pv don't mean a or nothing. Many manufactures have all of these options <br>
Fun times</p>
<br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Jun 19, 2025, 11:35 AM Dave Angelini Offgrid Solar via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="font-size:12pt;font-family:Verdana,Geneva,sans-serif">
<p>The EG4 is not a bad split. Reason my client wanted it was a redundant cooling back-up if his battery/inverter/solar went down.</p>
<div id="m_7689512589880377242signature">Definitely run AC to it from the main system. Getting close to the solstice and solar can power this well into the evening<span style="font-size:18pt">😎</span><br>
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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/" rel="noopener noreferrer" target="_blank"> </a><a style="color:blue;font-size:11px;font-family:'Lucida Grande',Verdana,Arial,Helvetica,sans-serif;font-weight:400;background-color:#ffffff" href="https://offgridsolar1.com/" rel="noopener noreferrer noreferrer" target="_blank"><span style="font-size:12pt">https://offgridsolar1.com/</span></a><a href="http://members.sti.net/offgridsolar/" rel="noopener noreferrer" target="_blank"> </a>
e-mail <a href="mailto:offgridsolar@sti.net" target="_blank" rel="noreferrer">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
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<p id="m_7689512589880377242reply-intro">On 2025-06-19 10:53 am, William Miller via RE-wrenches wrote:</p>
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<p><span style="font-family:'Verdana','sans-serif';color:#1f497d">There are two reasons I could see:</span></p>
<p><span style="font-family:'Verdana','sans-serif';color:#1f497d"> </span></p>
<p><span style="font-family:Symbol;color:#1f497d"><span>·<span style="font:7.0pt 'Times New Roman'"> </span></span></span><span style="font-family:'Verdana','sans-serif';color:#1f497d">Your existing PV rating is too small.</span></p>
<p><span style="font-family:Symbol;color:#1f497d"><span>·<span style="font:7.0pt 'Times New Roman'"> </span></span></span><span style="font-family:'Verdana','sans-serif';color:#1f497d">You do not have any existing PV and you do not want to incur more utility expenses.</span></p>
<p><span style="font-family:'Verdana','sans-serif';color:#1f497d"> </span></p>
<p><span style="font-family:'Verdana','sans-serif';color:#1f497d">I do see a real limitation to direct-DC air conditioning (which I think is what we are discussing): No AC when the sun is not high in the sky. That alone makes this impractical</span></p>
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<p><span style="font-family:'Verdana','sans-serif';color:#1f497d">William</span></p>
<p><span style="font-family:'Verdana','sans-serif';color:#1f497d"> </span></p>
<p><span style="font-family:'Arial','sans-serif';color:#1f497d">Miller Solar</span></p>
<p><span style="font-family:'Arial','sans-serif';color:#1f497d">17395 Oak Road, Atascadero, CA 93422</span></p>
<p><span style="font-family:'Arial','sans-serif';color:#1f497d">805-438-5600</span></p>
<p><span style="font-family:'Arial','sans-serif';color:#1f497d"><a href="http://www.millersolar.com/" rel="noopener noreferrer noreferrer" target="_blank"><span style="color:blue">www.millersolar.com</span></a></span></p>
<p><span style="font-family:'Arial','sans-serif';color:#1f497d">CA Lic. 773985</span></p>
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<p><strong><span style="font-size:10.0pt;font-family:'Tahoma','sans-serif'">From:</span></strong><span style="font-size:10.0pt;font-family:'Tahoma','sans-serif'"> RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <strong>On Behalf Of </strong>Jason Szumlanski via RE-wrenches<br><strong>Sent:</strong> Thursday, June 19, 2025 10:25 AM<br><strong>To:</strong> RE-wrenches<br><strong>Cc:</strong> Jason Szumlanski<br><strong>Subject:</strong> Re: [RE-wrenches] EG4 Mini Split</span></p>
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<p>I guess the secondary question is why would anyone use this system anyway in a grid interconnected environment. The only rationale I could see is to have some level of air conditioning when the sun is shining without having to go through the expense of adding a hybrid inverter and batteries. But by the time you install solar panels with a rapid shutdown system, the return on that investment seems terrible considering that much of the solar energy generated will be wasted unless you somehow need maximum cooling from this unit 365 days a year during the daylight hours. </p>
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<p><span style="font-size:10.0pt;font-family:'Helvetica','sans-serif';color:#333333">Principal Solar Designer | Florida Solar Design Group<br>NABCEP Certified Solar Professional (PVIP)<br>Florida State Certified Solar Contractor CVC56956</span></p>
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<p>On Thu, Jun 19, 2025, 6:15 AM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" rel="noreferrer noreferrer" target="_blank">jason@floridasolardesigngroup.com</a>> wrote:</p>
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<p>I'm getting requests to install 4-6 panels for these mini-splits. I'm saying no so far, but it got me thinking... What are people doing for rapid shutdown for these systems? I can't see them being exempt. The manual is silent on the issue. It just shows a DC isolator from the panels to the point of connection in the unit. </p>
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