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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Jing,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Your screen shots show that you have entered flowrates for the system supply flow, zonal supply flow, zonal outside air and zonal exhaust flow. The error is caused
by the zonal exhaust flow being greater than the entered system supply flow. You have also selected “Track Exhaust Flow” which requires the air handler to supply at least as much air as the exhaust requirement. You can do any of the following to eliminate
the error:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">1.)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Let the system supply flow rate default (leave the input field empty). The system will be sized to match the zone exhaust flow (or possibly higher).<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">2.)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Enter the system supply flow rate to be at least as much as the zone exhaust flow rate.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">3.)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Set the zonal exhaust to “No Airflow Tracking” and the EXHAUST-SOURCE to something other than “Air Handler”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:3.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:blue">bbishop@pathfinder-ea.com</span></a></span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><a href="http://www.pathfinder-ea.com/"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:blue">www.pathfinder-ea.com</span></a><o:p></o:p></span></p>
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South Fitzhugh Street <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">Rochester, NY 14608
</span><i><span style="font-size:7.0pt;font-family:"Verdana",sans-serif;color:#00B0F0">Ask me why Carbon Fee & Dividend may be right for you.</span></i><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;color:#00B0F0"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:red">*****Pathfinder’s Summer Hours begin June 4<sup>th</sup>. Our switchboard and office will be closed at noon on Fridays through August 31<sup>st</sup>.****</span></b><span style="font-size:8.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Brian Fountain via Equest-users<br>
<b>Sent:</b> Monday, July 23, 2018 9:36 AM<br>
<b>To:</b> Jing Hong via Equest-users <hongjing.shirley@gmail.com><br>
<b>Cc:</b> equest-users@onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Evaporative cooler with 100% outside air<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Look at the .sim file (view detailed simulation results). There will (likely) be error messages at the bottom of that text file relating to why the system/plant
module could not run, <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:
</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Jing Hong via Equest-users<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Sent:
</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Monday, July 23, 2018 9:31 AM<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">To:
</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"><a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>;
<a href="mailto:equest-users@onebuilding.org">equest-users@onebuilding.org</a><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Reply To:
</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Jing Hong<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Subject:
</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">[Equest-users] Evaporative cooler with 100% outside air<o:p></o:p></span></p>
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<p class="MsoNormal">Dear All,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have a constant volume 100% outside air evaporative cooler for a kitchen. The CFM is 4500. So I set the design flow rate 4500 and outside air flow 4500. When I performed simulation, the simulation was terminated due to errors. However,
there is no error shown in the list of errors. In addition, if I increase the design flow rate above the outside air flow rate 4500, then this problem will be gone.<o:p></o:p></p>
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<p class="MsoNormal">Did anyone have this problem before? How could I fix it?<o:p></o:p></p>
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<p class="MsoNormal">Thank you!<o:p></o:p></p>
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<p class="MsoNormal">Jing Hong<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">School of Architecture and Urban Planning</span><o:p></o:p></p>
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<p class="MsoNormal">University of Wisconsin-Milwaukee<o:p></o:p></p>
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