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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Neil,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>There’s not a hassle-free way to fix this. In order to avoid the behavior you’re seeing, you can specify the min flow ratio for each zone at the zone level (rather than at the system level). In this case, you will need to manually verify that the zone OA requirement is less than the min flow ratio you input for each zone. If the zone OA requirement dictates the zone minimum flow, then leave the min flow ratio blank for that zone (to avoid reducing flow below the min OA requirement.)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The Advanced VAV Design Guide includes more guidance on using eQuest to model VAV system control sequences:<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>http://www.energydesignresources.com/resources/publications/design-guidelines/design-guidelines-advanced-variable-air-volume-(vav)-systems.aspx<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Kind regards,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Molly<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-family:"Times New Roman","serif";color:#28AAE1'>Molly Curtz</span></b><b><span style='font-family:"Times New Roman","serif";color:#28AAE1'><o:p></o:p></span></b></p><p class=MsoNormal style='text-align:justify'><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'>Mechanical Engineer<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-indent:.5in'><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'><o:p> </o:p></span></p><p class=MsoNormal style='text-align:justify'><b><span style='font-family:"Times New Roman","serif";color:#595959'>Arup<o:p></o:p></span></b></p><p class=MsoNormal style='text-align:justify'><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'>403 Columbia Street Suite 220 Seattle WA 98104<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify'><b><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'>t</span></b><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'> +1 206 749 9674 <b>d</b> +1 206 493 2234 <o:p></o:p></span></p><p class=MsoNormal style='text-align:justify'><b><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'>f</span></b><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'> +1 206 749 0665 <b><o:p></o:p></b></span></p><p class=MsoNormal style='text-align:justify'><span style='font-size:10.0pt;font-family:"Times New Roman","serif";color:#595959'>www.arup.com<o:p></o:p></span></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Neil Patel<br><b>Sent:</b> Monday, April 18, 2011 6:04 AM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Min Flow Rate below Min OA<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hello, <span style='font-size:12.0pt'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal>I am modeling a VAV system and I am entering either Min-OA/person or Min-OA/area for each zone. I ran an hourly report and noticed that when I specify a minimum flow ratio the system flow rate will drop below the minimum OA rate.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Has anyone had this issue and is there a way to get the flow to stay above the ventilation requirement?<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Thanks in advance, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal>Neil Patel, EIT, LEED AP BD+C<o:p></o:p></p><p class=MsoNormal><span style='font-family:"Cambria","serif"'><o:p> </o:p></span></p><p class=MsoNormal><img width=51 height=60 id="Picture_x0020_1" src="cid:image001.jpg@01CC0036.D02B3BB0" alt="Logo 2"><span style='font-family:"Cambria","serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'>EME Group | Consulting Engineers, LLC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'>159 West 25th Street, 5th Floor<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'>New York, NY 10001<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'>Tel: 212-529-5969<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'>Fax: 212-529-6023 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif"'><a href="http://www.emegroup.com">www.emegroup.com</a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div><font face="monospace">____________________________________________________________<br>
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