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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Pramod,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The DOAS system type in eQUEST always runs with 100% OA, which is why economizer is not a useful input. The outside air inputs for the system and zones supplied by the DOAS dictate the hourly volume of OA
supplied by the DOAS. (You can determine the hourly OA cfm in the simulation by creating a custom hourly report for the DOAS with the variables “Total system supply air flow rate (cfm)” and “Ratio of outside air to total supply air”. ) Assuming your DOAS has
heat recovery, you can set your ERV-TEMP-CTRL to Mixed Air Reset which gives you efficient ERV control for providing the SAT specified by the DOAS cooling and heating control inputs.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><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 <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>pramod naik via Equest-users<br>
<b>Sent:</b> Thursday, May 30, 2024 12:56 PM<br>
<b>To:</b> Seaman, Ethan <eseaman@smma.com><br>
<b>Cc:</b> Seaman, Ethan via Equest-users <equest-users@lists.onebuilding.org><br>
<b>Subject:</b> Re: [Equest-users] Air side economizer for DOAS system in eQuest 2.3<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:#FFFF99"><strong><span style="font-size:10.0pt;font-family:"Aptos",sans-serif;color:#9C6500;background:#FFFF99">External Email:
</span></strong><span style="font-size:10.0pt;color:black;background:#FFFF99">Treat links and attachments with caution.</span><o:p></o:p></p>
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<p class="MsoNormal">That would be great if the DOAS system allows us to enter the deadband in the OA control tab.
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal">Pramod<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Thu, 30 May 2024 at 21:43, Seaman, Ethan via Equest-users <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt">I haven’t had to set up a system like this, but I would think if the outdoor air conditions are in the deadband your fans would still blow but the
coils would not turn on.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<b><span style="font-size:9.0pt;font-family:"Minion Pro",serif;color:#11B4E8;letter-spacing:.25pt">_______________________________________________</span></b><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;letter-spacing:.25pt"><br>
<span style="color:black">Ethan Seaman</span></span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.25pt"><br>
Sustainable Design Analyst</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;line-height:13.5pt">
<b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.75pt">SMMA</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.25pt">
<br>
t: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">617.520.9288</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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 <<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Pramod .D via Equest-users<br>
<b>Sent:</b> Thursday, May 30, 2024 10:06 AM<br>
<b>To:</b> Seaman, Ethan via Equest-users <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>><br>
<b>Subject:</b> Re: [Equest-users] Air side economizer for DOAS system in eQuest 2.3</span><o:p></o:p></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Ethan,
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thank you for your reply. How can I take the credit for using economiser for DOAS? Please suggest if you have done anything like this before..<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Pramod
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">On 30-May-2024, at 6:56<span style="font-family:"Arial",sans-serif"> </span>PM, Seaman, Ethan via Equest-users <<a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a>>
wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Tahoma",sans-serif"></span>
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><span style="font-size:11.0pt">Hi Pramod,<br>
<br>
eQuest doesn’t allow you to use an economizer when a DOAS is selected.</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><image001.png><o:p></o:p></p>
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</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><image002.png><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;line-height:13.5pt">
<b><span style="font-size:9.0pt;font-family:"Minion Pro",serif;color:#11B4E8;letter-spacing:.25pt">_______________________________________________</span></b><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;letter-spacing:.25pt"><br>
<span style="color:black">Ethan Seaman</span></span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.25pt"><br>
Sustainable Design Analyst</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;line-height:13.5pt">
<b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.75pt">SMMA</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:.25pt">
<br>
t: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">617.520.9288</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"><a href="https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.smma.com&c=E,1,2T_1gRVuX-PvmQbJZG34RZprZLD4QWLlTYPtOmuMvpE9H15wrclBTiJDsaIvafBSGTO-lO5uf-75OmQEYqJYx6j4PqFF7i-J_KHz5VS5loS80B5-cJbV5NQ,&typo=1&ancr_add=1" target="_blank">www.smma.com</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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 <<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>pramod naik via Equest-users<br>
<b>Sent:</b> Thursday, May 30, 2024 12:55 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Air side economizer for DOAS system in eQuest 2.3</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I am modeling a Community center with VRF system and DOAS for outside air. I am using eQuest DOE 2.3. My DOAS unit has economizer in design but all the inputs on the "Outside Air
and Economizer" tab are greyed out. Any help or suggestion on how to get this working is greatly appreciated.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Pramod<o:p></o:p></p>
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