<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>We're still not at the bottom of it. Seems Mitsubishi is doing their level best to finger the RE system. Yes, the current wave form (On a Fluke 43 Power Analyzer) has a shoulder.. looks down right funky on one inverter thru the X240 until the 2nd inverter lights. Current also looks funkular when each mini split is lit (Pulses).. Still, I'm thinking it's more about how the mini splits toke power rather than how the Outbacks produce power. The voltage waveforms look fine.<br></div><div> </div><div>the other chin scratcher is that it seems this model of mini split has only been around since spring. There might be a model specific cold weather setup the AC folks missed. Something about a jumper on a control board that needs to be snipped to enable the compressor heater.<br></div><div><br></div><div>We also noticed that all mini splits work just fine if you leave them on and turned down.. But that kind of power draw for folks that have been loving off grid since 92 is just unacceptable. (these guys were turning off GFI breakers because they could see a draw).<br></div><div><br></div><div>Either way, the power system itself is working fine as is everything else in the house. And no, the new power system has not kept the lawn mower from starting or the dog from eating the cats food.</div><div><br></div><div>Peace. db<br></div><div><br></div><div>Dan Brown<br>Foxfire Energy Corp.<br>Renewable Energy Systems<br>(802)-483-2564<br><a href="http://www.Foxfire-Energy.com">www.Foxfire-Energy.com</a><br>NABCEP #092907-44</div><div><img id="sigimg0" title="signature image" src="cid:sigimg0@ed51b35a0e0ffd128f582f958c413439" alt="" border="0"></div><div><br><br></div>
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Subject: Re: [RE-wrenches] Mitsubishi Mini Split fighting with Outback<br>
VFX Off Grid<br>
From: Wayne Irwin <<a href="mailto:wayne@pureenergysolar.com">wayne@pureenergysolar.com</a>><br>
Date: Tue, October 21, 2014 8:52 pm<br>
To: Wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
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</style> <div dir="ltr"><font style="font-size:12pt;" size="3" color="#000000">We have found that the mini-splits have only had issues while gen sets are running. <br>In some cases (when on genset) the mini's will run irregularly or flash a fault status.<br><br>Rather than try to have the mini's run on gen power we install dc chargers to charge batts from gen power.<br><br>My thought is that the AC Installer either has something wrong or the Mitsubishi's have very tight parameters.<br>Be sure that the wiring from the inside unit to the outside unit are correct. Should be only three wires (plus gnd). Very easy to check.<br><br>Possible alternative solution would be look into the cost of installing a Gree since they are the least expensive.<br> <br></font><br><br><font style="font-size:12pt;" size="3" color="#008A17">Wayne Irwin</font><font style="font-size:12pt;" size="3" color="#008A17">,</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">President</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">License #CVC56695 </font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">State Licensed Solar Contractor</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">Pure Energy Solar International Inc. </font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17"> </font><font style="font-size:12pt;" size="3" color="#008A17"><a target="_blank" href="mailto:PureEnergySolar@hotmail.com">Wayne@PureEnergySolar.com</a></font><font style="font-size:12pt;" size="3" color="#008A17"> </font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17"> </font><font style="font-size:12pt;" size="3" color="#008A17"><a href="http://pureenergysolar.net/" target="_blank"></a><a href="http://PureEnergySolar.com" target="_blank">http://PureEnergySolar.com</a><br><a href="https://solarchargingstation.net" target="_blank">http://SolarChargingStation.net</a><br></font><font style="font-size:12pt;" size="3" color="#008A17"></font><font style="font-size:12pt;" size="3" color="#008A17">352 377-6527 Office</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">352 336-3299 Fax</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17">352 316-1637 Cell</font><font style="font-size:12pt;" size="3" color="#008A17"><br></font><font style="font-size:12pt;" size="3" color="#008A17"><br><font style="font-size:12pt;" face="Comic Sans MS">The Sun Is Always Shining!</font><font style="" face="Arial"><br><br></font></font><div class="ecxecxecxEC_EC_EC_EC_EC_MsoNormal"><font style="font-size:12pt;" face="Arial" size="3" color="#008A17">The content of this message is Pure Energy Solar Confidential. If you are not the intended recipient and have received this message in error, any use or distribution is prohibited. Please notify me immediately by reply e-mail and delete this message from your computer system. Thank you.</font></div><br><br><div><hr id="stopSpelling">Date: Tue, 21 Oct 2014 11:23:31 -0600<br>From: <a href="mailto:ray@solarray.com">ray@solarray.com</a><br>To: <a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a><br>Subject: Re: [RE-wrenches] Mitsubishi Mini Split fighting with Outback VFX Off Grid<br><br> <div class="ecxmoz-cite-prefix">The Outback is not a perfect Sinewave. It still has tiny steps in the wave, and when electronics have a problem, its usually with the wave form as it crosses zero voltage . Instead of being instantaneous, it has a few milliseconds of time the wave is at the zero crossing, which can drive some electronics nuts. I don't understand the issue beyond that, but apparently the electronics use the zero crossing for timers and synchronizing, and they're looking for an instant "click", not a smear. <br> Do the heat pumps work with the generator? Even though generators can have more harmonic distortion, they do usually have a clean zero crossing.<br> If this is the case, I'm afraid I don't have a cure. We used to use capacitors, but Dan from Exeltech just poo pooed that fix in another recent thread, so I don't have any other tricks up my sleeve.<br> <pre class="ecxmoz-signature">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre> On 10/21/2014 8:54 AM, <a target="_blank" class="ecxmoz-txt-link-abbreviated" href="mailto:dan@foxfire-energy.com">dan@foxfire-energy.com</a> wrote:<br> </div> <blockquote cite="mid:20141021075412.720a661d8db719b1f2ad39509c9edaa3.7eec600f56.wbe@email14.secureserver.net"><span style="font-family:Verdana;color:#000000;font-size:10pt;"> <div>Anyone else had issues with Mitsubishi Mini Split heat pumps fighting with Outback VFX off grid inverters? Everything is brand new. Outback VFX7248, three separate heat pumps. The heat pumps shut down reporting multiple / confusing input commands. The heat pump guys want to blame the power system. I'm thinking bad Sushi. Thanks db<br> </div> <div><br> </div> <div><br> Dan Brown<br> Foxfire Energy Corp.<br> Renewable Energy Systems<br> (802)-483-2564<br> <a href="http://www.Foxfire-Energy.com" target="_blank">www.Foxfire-Energy.com</a><br> NABCEP #092907-44</div> <div><img id="ecxsigimg0" title="signature image" src="cid:part2.05050506.04010304@solarray.com" alt="" wbeuser="dan@foxfire-energy.com" border="0"></div> </span> <br> <fieldset class="ecxmimeAttachmentHeader"></fieldset> <br> <pre>_______________________________________________
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