<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">what generator do you have?<div><br></div><div>jay<br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Apr 7, 2026, at 1:25 PM, Jason Szumlanski via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:</div><br class="Apple-interchange-newline"><div><div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Here we go again with a manufacturer providing poor and misleading documentation. The EG4 GridBOSS manual says:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><i>The GridBOSS should use start/stop relay 1 in the normally open connection. Start/stop relay 1 can be controlled manually or by battery SOC/voltage logic within the EG4® Monitor Center. The generator can also be configured with warm-up, cool-down, <b>and exercise time</b>.</i></div><br clear="all"></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I just learned that there is, in fact, no automatic scheduled generator exercise feature on the GridBOSS. This is a real problem because many generator controls disable the onboard exercise function when remote-start capability is enabled. </div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">So what is "exercise time" in EG4's world? Apparently, <span class="Asgive ng" style="border-style:none;background:none">that</span> means you can set a duration for the generator to run when you <span class="Asgive ng" style="border-style:none;background:none">MANUALLY start the generator</span> from the app. </div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hope this saves someone else a big headache, hours of research, and clueless tech support.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Any thoughts <span class="Asgive ng" style="border-style:none;background:none">on</span> a simple external relay in parallel to accomplish this function? I was thinking <span class="Asgive ng" style="border-style:none;background:none">about a Shelly connected </span>to a smart load for power in the GridBOSS. It just needs to be a programmable relay to close on a schedule. How reliable are Shelly relays for scheduled tasks?</div><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif"> </font></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif"><br></font></div></div></div></div></div>
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