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<p><span style="font-size: 12pt;">P.S.</span></p>
<p><span style="font-size: 12pt;">You would need to run the control wires back to the inverter. Can you possibly run a pair of #16 wires the through the conduit feeding the building with the compressor? </span></p>
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<p id="reply-intro">On 2025-08-23 09:30, Drake Chamberlin via RE-wrenches wrote:</p>
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<div class="v1pre" style="margin: 0; padding: 0; font-family: monospace;"><span style="font-size: 12pt;">Can you use a contactor with the coil wires connected to the AC IN of the Outback? When incoming AC goes down, the contactor will open to shed the compressor circuit. </span></div>
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<p><em>Drake Chamberlin</em></p>
<p><em>Athens Electric LLC</em></p>
<p><em>Ohio Electrical Contractor’s License 44810</em></p>
<p><em>NABCEP Certified PV Installation Professional</em></p>
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<br /><br />On 2025-08-22 15:54, Christopher Warfel via RE-wrenches wrote:
<blockquote style="padding: 0 0.4em; border-left: #1010ff 2px solid; margin: 0;">We installed a 4kW Outback multimode system about 8 years ago. An<br />electrician came in afterwards and installed 3 heat pumps on the<br />battery backed up power panels. The Outback inverter disconnected on<br />load every time there was a power outage. The electrician really<br />messed up and is long gone. Also found out did not pull a permit. But<br />I digress. We managed to move two of the heat pump circuit breakers<br />to the utility panel, so no longer on the battery backed up power<br />panels. The third heat pump is the problem as it is located in an<br />apartment building remote from the main house. The whole apartment<br />subpanel, including the heat pump load is interconnected to the<br />"main" battery backed up power panel in the home.<br /><br />A master electrician and I are considering how to shed the apartment<br />heat pump in a power outage. We cannot easily run a separate circuit<br />to the apartment building to pick up this load. We have considered a<br />smart panel, but the cost seems high for one circuit. Does anyone know<br />of a power line product of RF product or similar that could operate<br />this breaker when the main service panel loses power? I have been<br />unsuccessful over months of sporadic research.<br /><br />Thanks in advance.<br /><br /><br />Chris<br /><br /><br /><br /><br /><br /><br /><br /><br />-- Christopher Warfel, PE ENTECH Engineering, Inc. PO Box 871, Block<br />Island, RI 02807 (401) 447-5773<br />_______________________________________________<br />List sponsored by Redwood Alliance<br /><br />Pay optional member dues here: <a href="http://re-wrenches.org" target="_blank" rel="noopener noreferrer">http://re-wrenches.org</a><br /><br />List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer">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" target="_blank" rel="noopener noreferrer">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br /><br />There are two list archives for searching. When one doesn't work, try the other:<br /><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" target="_blank" rel="noopener noreferrer">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br /><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank" rel="noopener noreferrer">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br /><br />List rules & etiquette:<br /><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank" rel="noopener noreferrer">http://www.re-wrenches.org/etiquette.htm</a><br /><br />Check out or update participant bios:<br /><a href="http://www.members.re-wrenches.org" target="_blank" rel="noopener noreferrer">http://www.members.re-wrenches.org</a></blockquote>
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<div class="pre" style="margin: 0; padding: 0; font-family: monospace">_______________________________________________<br />List sponsored by Redwood Alliance<br /><br />Pay optional member dues here: <a href="http://re-wrenches.org" target="_blank" rel="noopener noreferrer">http://re-wrenches.org</a><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" target="_blank" rel="noopener noreferrer">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br /><br />There are two list archives for searching. When one doesn't work, try the other:<br /><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" target="_blank" rel="noopener noreferrer">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br /><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank" rel="noopener noreferrer">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br /><br />List rules & etiquette:<br /><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank" rel="noopener noreferrer">http://www.re-wrenches.org/etiquette.htm</a><br /><br />Check out or update participant bios:<br /><a href="http://www.members.re-wrenches.org" target="_blank" rel="noopener noreferrer">http://www.members.re-wrenches.org</a><br /><br /></div>
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