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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Your COOL-SET-T and MIN-SUPPLY-T are both defaulting to 65 F, which results in cooling and reheating. The solution is to drop your heating setpoint slightly and enter cooling setpoints that are slightly higher than the heating setpoint, as in the attached file.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org> <b>On Behalf Of </b>Chris Hadlock via Equest-users<br><b>Sent:</b> Thursday, May 16, 2019 2:33 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Setting DOAS system type airflow rates<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>It's been suggested I share my pd2 and inp (and weather) file to allow others to perhaps help with the troubleshooting. Those 3 files have been attached. I am using build 7175, DOE 2.3.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thank you to all that take a look and provide suggestions.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Chris<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Thu, May 16, 2019 at 12:00 PM Nicholas Caton <<a href="mailto:Nicholas.Caton@se.com">Nicholas.Caton@se.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>A fast shotgun guess: Is it possible the boiler(s) serving that hot water loop feature a 5:1 turndown and the loop operation is set to standby, meaning the boiler(s) can’t turn off completely?<o:p></o:p></p><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'>~Nick<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Arial",sans-serif;color:#3A7A46'><img border=0 width=726 height=9 style='width:7.5625in;height:.0937in' id="gmail-m_-78101210781285808Picture_x0020_3" src="cid:image001.png@01D50BF8.B604F1F0"></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-family:"Arial",sans-serif;color:#3A7A46'>Nick Caton, P.E., BEMP</span></b><o:p></o:p></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=724 style='width:543.0pt;border-collapse:collapse'><tr><td width=230 valign=top style='width:172.3pt;padding:0in 0in 0in 0in'><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:#626469'> Senior Energy Engineer</span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'><br></span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469'> Regional Energy Engineering Manager</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:#626469'> Energy and Sustainability Services</span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'><br></span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469'> Energy Performance Contracting </span><o:p></o:p></p></td><td width=16 valign=top style='width:11.8pt;padding:0in 0in 0in 0in'><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:#57B069'>D </span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'><br></span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069'>M </span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'><br></span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069'>F </span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'><br></span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069'>E </span><span style='font-size:9.0pt;color:#1F497D'> </span><o:p></o:p></p></td><td width=275 valign=top style='width:206.5pt;padding:0in 0in 0in 0in'><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:#626469'>913 . 564 . 6361</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:#626469'>785 . 410 . 3317</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:#626469'>913 . 564 . 6380</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><u><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469'><a href="mailto:nicholas.caton@se.com" target="_blank"><span style='font-family:"Calibri",sans-serif;color:#626469'>nicholas.caton@se.com</span></a></span></u><o:p></o:p></p></td><td width=203 valign=top style='width:152.4pt;padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right'><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469'>15200 Santa Fe Trail Drive<br>Suite 204<br>Lenexa, KS 66219<br>United States</span><o:p></o:p></p></td></tr><tr style='height:4.0pt'><td width=724 colspan=4 valign=top style='width:543.0pt;padding:0in 0in 0in 0in;height:4.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#3A7A46'><img border=0 width=722 height=49 style='width:7.5208in;height:.5104in' id="gmail-m_-78101210781285808_x005f_x0000_i1031" src="cid:image002.png@01D50BF8.B604F1F0"></span><o:p></o:p></p></td></tr></table><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><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>From:</b> 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>Chris Hadlock via Equest-users<br><b>Sent:</b> Thursday, May 16, 2019 9:16 AM<br><b>To:</b> Brian Fountain <<a href="mailto:Brian.Fountain@sa-footprint.com" target="_blank">Brian.Fountain@sa-footprint.com</a>><br><b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Equest-users] Setting DOAS system type airflow rates<o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p><span style='color:red'>[External email: Use caution with links and attachments]</span><o:p></o:p></p><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><p> <o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>For my most recent project for which I have a DOAS system, I've noticed a constant (8760 hrs) heating energy consumption. I've got the DOAS set up as a gas-fired furnace and DX cooling coil. I've set my auxiliary fuel consumption set to 0 and no preheat. During the summer where there is active cooling my furnace is running at about 19% of it's design capacity (simultaneous heating and cooling). Has anyone noticed their DOAS system doing this? Any suggestions? <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Chris<o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Wed, May 15, 2019 at 9:52 AM Brian Fountain 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></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Hi Chris.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Yes – you can explicitly set the heating and/or cooling capacities of the DOAS system type.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=654 height=325 style='width:6.8125in;height:3.3854in' id="gmail-m_-78101210781285808gmail-m_-6536249796350194646_x005f_x0000_i1029" src="cid:image003.jpg@01D50BF8.B604F1F0"><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Cheers,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'>Brian</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:8.0pt;line-height:105%'><b><span style='font-size:12.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>Footprint<br><br></span></b><b><span style='font-size:10.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>Brian Fountain<br></span></b><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>Associate<br></span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>d </span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>416 572 8501</span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'> m </span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>416 562 6831</span><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#1F497D'> </span><o:p></o:p></p><div><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>From:</b> 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>Jones, Christopher via Equest-users<br><b>Sent:</b> Wednesday, May 15, 2019 8:39 AM<br><b>To:</b> Bishop, Bill <<a href="mailto:bbishop@pathfinder-ea.com" target="_blank">bbishop@pathfinder-ea.com</a>><br><b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Equest-users] Setting DOAS system type airflow rates<o:p></o:p></p></div></div><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'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>CAUTION: EXTERNAL SENDER </span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks Bill,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Re. DOAS coils – is there an option to specifically size the coils? <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Christopher R Jones, P.Eng.</span></b><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'>T+ 1 416-644-0252</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:8.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=60 height=29 style='width:.625in;height:.302in' id="gmail-m_-78101210781285808gmail-m_-65362497963501946461cc2331b-d8c3-424e-81de-2b17716d444e.png_x003f_ver_x003d_1495657656000" src="cid:image004.png@01D50BF8.B604F1F0"><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><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>From:</b> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Bishop, Bill via Equest-users<br><b>Sent:</b> Tuesday, May 14, 2019 2:02 PM<br><b>To:</b> Brian Fountain <<a href="mailto:Brian.Fountain@sa-footprint.com" target="_blank">Brian.Fountain@sa-footprint.com</a>><br><b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Equest-users] Setting DOAS system type airflow rates<o:p></o:p></p></div></div><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'>Thanks, Brian! You make an important point on design sizing of DOAS systems – the hourly ventilation rate is determined by the systems/zones that the DOAS serves, and the corresponding ventilation controls for those systems.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Some additional observations:<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in'>-<span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>If you enter the DOAS SUPPLY-FLOW (Design cfm): <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in'><span style='font-family:"Courier New"'>o</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>The design fan power will be based on the SUPPLY-FLOW multiplied by SUPPLY-KW/FLOW (if entered).<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in'><span style='font-family:"Courier New"'>o</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>Any central airhandler coils will be autosized based on the SUPPLY-FLOW. (See the SV-C report in the SIM file.)<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in'>-<span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>If instead, you let the DOAS SUPPLY-FLOW (Design cfm) default by leaving it blank: <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in'><span style='font-family:"Courier New"'>o</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>The design fan power will be based on the design ventilation rate determined by the served systems multiplied by SUPPLY-KW/FLOW (if entered).<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in'><span style='font-family:"Courier New"'>o</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>Any central airhandler coils will be autosized based on the design ventilation rate.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in'>-<span style='font-size:7.0pt;font-family:"Times New Roman",serif'> </span>If you enter zone ventilation as OA/FLOW-PER (cfm per person), to simulate DCV or to size the ventilation per ASHRAE 62.1 guidelines, the design ventilation rate will be based on the highest hourly value in the occupancy schedule. So you have to have at least one hour with 1.0 occupancy either in the weekday, weekend and/or CDD/HDD schedules. Otherwise, the design ventilation rate will be reduced.<o:p></o:p></p><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'>~Bill<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black'>William Bishop, PE, BEMP, BEAP, CEM, LEED AP</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>Senior Energy Engineer</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:3.0pt;font-family:"Arial",sans-serif;color:black'> </span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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</v:shape><![endif]--><![if !vml]><img width=91 height=59 style='width:.9479in;height:.6145in' src="cid:image005.jpg@01D50BF8.B604F1F0" align=left hspace=12 alt=Pathfinder-EA-logo-2 v:shapes="_x0000_s1026"><![endif]><b><i><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#002060'>T: (585) 698-1956</span><span style='color:#002060'> </span></i></b><span style='color:#1F497D'> </span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D'>F: (585) 325-6005</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="mailto:wbishop@pathfinder-ea.com" target="_blank"><span style='font-size:9.0pt;font-family:"Arial",sans-serif'>bbishop@pathfinder-ea.com</span></a><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:black'> </span><a href="https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pathfinder-ea.com%2F&data=02%7C01%7CNicholas.Caton%40se.com%7C8779c580c4e341769e4a08d6da090db2%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C636936129752252494&sdata=cW5ywD3jl4zameXVIYXruYvWkV2%2FQG7Zgc%2BgtLYhOvM%3D&reserved=0" target="_blank"><span style='font-size:9.0pt;font-family:"Arial",sans-serif'>www.pathfinder-ea.com</span></a><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:#1F497D'>134 South Fitzhugh Street</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:#1F497D'>Rochester, NY 14608 <img border=0 width=26 height=23 style='width:.2708in;height:.2395in' id="gmail-m_-78101210781285808gmail-m_-6536249796350194646_x005f_x0000_i1026" src="cid:image006.png@01D50BF8.B604F1F0"> </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><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><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>From:</b> 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>Brian Fountain via Equest-users<br><b>Sent:</b> Monday, May 13, 2019 5:47 PM<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] Setting DOAS system type airflow rates<o:p></o:p></p></div></div><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'>Caution note when using DOAS systems – you cannot simply define the OA volume in the flow parameters tab of the DOAS fan. <o:p></o:p></p><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'>In DOE-2.3, there is now a system type ‘DOAS’ that will properly provide outdoor air either directly to zones or to the mixing section of the system it serves. The volume of outdoor air delivered by this system is determined by the outdoor air flow rates of the zones that take air from this system. The screenshot below suggests that the unit will be delivering 6,545 cfm of OA but in fact this system was only delivering 500 cfm as the served zones did not have their OA volumes set properly. <o:p></o:p></p><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'><img border=0 width=771 height=316 style='width:8.0312in;height:3.2916in' id="gmail-m_-78101210781285808gmail-m_-6536249796350194646Picture_x0020_1" src="cid:image007.jpg@01D50BF8.B604F1F0"><o:p></o:p></p><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'>When the OA was defined in the zones taking air from this system, the volume of OA in the DOAS was as expected.<o:p></o:p></p><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'>Today’s lesson – define outdoor air rates properly, and hourly reports are your friend.<o:p></o:p></p><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'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;line-height:105%'><b><span style='font-size:12.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>Footprint<br><br></span></b><b><span style='font-size:10.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>Brian Fountain </span></b><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>P.Eng., LEED AP BD+C, BEMP<br>Associate<br><a href="mailto:Brian.Fountain@sa-footprint.com" target="_blank">Brian.Fountain@sa-footprint.com</a><br><br>100 Sheppard Ave Suite 800 Toronto Ontario M2N 6Z1<br></span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>t </span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>416 218 7025 </span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'>f </span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'>416 487 9104 <a href="https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsa-footprint.com&data=02%7C01%7CNicholas.Caton%40se.com%7C8779c580c4e341769e4a08d6da090db2%7C6e51e1adc54b4b39b5980ffe9ae68fef%7C0%7C0%7C636936129752257477&sdata=twEy2v5cdWidn0AE4jAzjGgdQn1RJsTwy9JAvs%2BSHWo%3D&reserved=0" target="_blank">sa-footprint.com</a><br><br>Vancouver Calgary Edmonton Winnipeg Kitchener</span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#006892'> Toronto</span><span style='font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#967264'> Ottawa</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><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> </span><o:p></o:p></p><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:7.5pt;font-family:"Arial",sans-serif;color:gray'><br><br>NOTICE: This communication and any attachments ("this message") may contain information which is privileged, confidential, proprietary or otherwise subject to restricted disclosure under applicable law. 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