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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'>Great, Thanks for the quick responses guys.<o:p></o:p></span></p><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"'> Daric Adair [mailto:Daric.Adair@hei-eng.com] <br><b>Sent:</b> Thursday, August 13, 2015 2:55 PM<br><b>To:</b> Greenberg, Ari; 'Steve Jacobs'; equest-users@lists.onebuilding.org<br><b>Subject:</b> RE: [Equest-users] Fan cycling when unoccupied<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>Hello Steve;<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'>To tag onto Ari’s response only because it was a semi-vague question. <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'>If this is a general type question: ASHRAE 62.1-2010 Section 5.3 calls for Ventilation ‘whenever occupied’. Tagging onto this ASHRAE 90.1-2010 Section 6.4.3.4.2 states that all outside air and exhaust damper shut when systems or spaces served are not in use. (paraphrasing). Different reasons, but effective ventilation when the space is occupied used, and minimize energy the spaces aren’t used. Keeps occupants healthy with OA and minimizes energy consumption.<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'>If this is a modeling / appendix G type question, the Ari nailed it.<o:p></o:p></span></p><div><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><p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial Black","sans-serif";color:black;text-transform:uppercase'>DARIC R. ADAIR</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><span style='font-size:8.0pt;font-family:"Arial Black","sans-serif";color:black;text-transform:uppercase'> PE, C.E.M.</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> <br></span><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#566C11'>Henderson Engineers, Inc. | </span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#566C11'>Mechanical Engineer, Energy Analyst</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> <br></span><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";font-variant:small-caps;color:black'>dir</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'> 913 742 5530 <b><span style='font-variant:small-caps'>tel</span></b> 913 742 5000 <b><span style='font-variant:small-caps'>fax</span></b> 913 742 5001 <b><span style='font-variant:small-caps'>tx id</span></b> #F-001236 <b><span style='font-variant:small-caps'>email</span></b> daric.adair@hei-eng.com</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> <a href="http://www.hei-eng.com/"><b><span style='font-size:8.0pt;color:#566C11'>www.hei-eng.com</span></b></a> <br></span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:black'>Licensed in KS.</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><span style='color:#1F497D'><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 #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Greenberg, Ari [<a href="mailto:AGreenberg@brplusa.com">mailto:AGreenberg@brplusa.com</a>] <br><b>Sent:</b> Thursday, August 13, 2015 2:45 PM<br><b>To:</b> 'Steve Jacobs' <<a href="mailto:sjacobseng@gmail.com">sjacobseng@gmail.com</a>>; <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Equest-users] Fan cycling when unoccupied<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'>Hi Steve,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'>I believe the requirement comes from Appendix G: “<b>G3.1.2.4 Fan System Operation. </b>Supply and return fans shall operate continuously whenever spaces are occupied and shall be cycled to meet heating and cooling loads during unoccupied hours.”<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'>Hope that helps.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'>Ari<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#44546A'><o:p> </o:p></span></p><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr style='height:.75pt'><td style='border:none;border-top:dotted #CCCCCC 1.0pt;padding:0in 0in 0in 0in;height:.75pt'></td><td width=624 style='width:6.5in;padding:0in 0in 0in 0in;height:.75pt'><p class=MsoNormal style='mso-line-height-alt:.75pt'> <o:p></o:p></p></td></tr><tr><td width=100 style='width:75.0pt;padding:0in 6.0pt 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#484848'><img border=0 width=97 height=26 id="_x0000_i1025" src="cid:image001.gif@01D0D5DD.DAF71920" alt=" [BR+A] "><o:p></o:p></span></p></td><td width="100%" style='width:100.0%;padding:0in 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F286F'>Ari Greenberg<br>HVAC Engineer</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#484848'> <o:p></o:p></span></p></td></tr><tr><td colspan=2 style='padding:.05in 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F286F'>Bard, Rao + Athanas Consulting Engineers, LLC</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#484848'> <br>10 Guest St., 4th Floor </span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#00AFDB'>|</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#484848'> Boston, Massachusetts 02135<br><a href="mailto:agreenberg@brplusa.com"><b><span style='color:#0F286F;text-decoration:none'>e </span></b><span 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0in 0in'><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black;letter-spacing:3.0pt'>INNOVATION</span></b><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#00AFDB;letter-spacing:3.0pt'> | </span></b><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black;letter-spacing:3.0pt'> EXPERIENCE</span></b><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#00AFDB;letter-spacing:3.0pt'> | </span></b><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black;letter-spacing:3.0pt'> PROVEN SUCCESS</span></b><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#484848;display:none'><o:p> </o:p></span></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:9.95pt 0in 0in 0in'><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#7F7F7F'>This email and any files transmitted with it are confidential and intended solely for the addressee. If you are not the named addressee you should not disseminate, distribute, copy or alter this email.</span><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></td></tr><tr><td style='padding:0in 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:Webdings;color:green'>P</span></b><b><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:green'> Please consider the environment before printing this e-mail <o:p></o:p></span></b></p></td></tr><tr><td style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><a href="https://www.facebook.com/BardRaoAthanas"><span style='text-decoration:none'><img border=0 width=24 height=24 id="_x0000_i1026" src="cid:image002.gif@01D0D5DD.DAF71920" alt="[Facebook] "></span></a><a href="https://www.linkedin.com/company/br-a-consulting-engineers"><span style='text-decoration:none'><img border=0 width=24 height=24 id="_x0000_i1027" src="cid:image003.gif@01D0D5DD.DAF71920" alt=" [LinkedIn] "></span></a><a href="https://twitter.com/BRplusA"><span style='text-decoration:none'><img border=0 width=24 height=24 id="_x0000_i1028" src="cid:image004.gif@01D0D5DD.DAF71920" alt=" [twitter]"></span></a><o:p></o:p></span></p></td></tr></table><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Steve Jacobs<br><b>Sent:</b> Thursday, August 13, 2015 3:30 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] Fan cycling when unoccupied<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does anyone know if the requirement for the OA to remain off when the fans cycle after hours comes from somewhere in ASHRAE, or is just something that LEED requires.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Steve<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></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><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'><br>This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. This communication represents the originator's personal views and opinions, which do not necessarily reflect those of Henderson Engineers, Inc. If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify <a href="mailto:administrator@hei-eng.com">administrator@hei-eng.com</a>.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p></div></body></html>