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<div id="signature">All sounds wrong to me. Call Outback.</div>
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<div>Typically there is a AC bypass mechanical switch that allows the gen to bypass the inverter and power loads.<br />
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<pre><strong><span style="font-size: small;">Dave Angelini Offgrid Solar
"we go where powerlines don't"
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e-mail <a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
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<p id="reply-intro">On 2025-05-12 9:29 am, Jason Szumlanski via RE-wrenches wrote:</p>
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<div class="v1gmail_default" style="font-family: arial,helvetica,sans-serif;">Maybe I'm missing something, but it seems like there is a flaw in the logic for how generator integration works with this product. Unlike some of the other AIOs, you can't put the generator on the Grid input in an off-grid scenario. You have to use the Generator smart load breaker, which isn't a dedicated generator input, but a programmable circuit. This is problematic because it seemingly has a normally open internal relay that closes only when the inverter is ON. At least, that's how it seems to work in my limited experience.</div>
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<div class="v1gmail_default" style="font-family: arial,helvetica,sans-serif;">Why is this a problem? If the battery capacity drops below the low voltage cutoff, the inverter turns off. You have to turn the inverter ON for the generator relay to close so you can charge the battery, but since the battery is too low, the inverter won't turn on. You would have to reprogram the inverter to drop the cutoff voltage/SOC below the current battery state. For people who do not want to use AGS, or if AGS fails to start the generator for any reason, getting the generator to charge the battery manually is no easy task.</div>
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<div class="v1gmail_default" style="font-family: arial,helvetica,sans-serif;">Moreover, turning the generator on manually when the inverter is in an OFF state will not pass power to the loads, and will not turn the inverter ON automatically. You have to get the inverter turned ON somehow so that the generator power can pass through to the loads. And since the startup sequence for this inverter is very quirky, non-intuitive, and unreliable, that makes the problem even worse. I'm not sure if you can even turn the inverter ON when there is generator input and the battery is too low. I don't think you can because the relay is open and the inverter doesn't even see generator voltage when it is in an OFF state.</div>
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<div class="v1gmail_default" style="font-family: arial,helvetica,sans-serif;">This seems like a serious oversight and a reason to go with one of the other AIOs on the market. I believe the Sol-Ark 15K and EG4 18kPV will both immediately power loads and start charging when the generator is on, regardless of whether the generator is connected to the Grid or Generator input. Any AC input immediately passes through to the loads. This is because those inverters stay "on" when a low battery condition is met, and they simply stop using the battery to invert power if the battery conditions do not allow it, based on the settings. </div>
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<div class="v1gmail_default" style="font-family: arial,helvetica,sans-serif;">The logic of the Midnite AIOs turning "off" when battery cutoff is met and opening the generator relay doesn't make sense to me. Am I wrong about how this works?</div>
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Jason Szumlanski
<div>Principal Solar Designer</div>
<div>Florida Solar Design Group</div>
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