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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='font-size:12.0pt'>Bill – an excellent question, one I haven’t looking into too much before…<o:p></o:p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p><p class=MsoNormal><span style='font-size:12.0pt'>Here’s a little logic, though:<o:p></o:p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>      <![endif]><span style='font-size:12.0pt'>All LEED buildings are required to meet Section 6.4 in its entirety. (per the pre-requisite language)<o:p></o:p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>      <![endif]><span style='font-size:12.0pt'>The ventilation rates are required to be identical between the proposed and baseline per G3.1.2.5<o:p></o:p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt'><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>      <![endif]><span style='font-size:12.0pt'>If there is a reason why the proposed building would need ventilation during unoccupied hours, both the proposed and the baseline shall have ventilation during those hours per G3.1.2.4<o:p></o:p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p><p class=MsoNormal><span style='font-size:12.0pt'>I think that’s enough logic to make the case for what you’ve proposed. Thoughts?<o:p></o:p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p><p class=MsoNormal><span style='font-size:12.0pt'>Aaron<o:p></o:p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p><div><p class=MsoNormal style='line-height:150%;text-autospace:none'><span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'>Aaron Dahlstrom , PE, LEED® AP<o:p></o:p><p class=MsoNormal style='line-height:150%;text-autospace:none'><span style='font-family:"AvantGarde Bk BT","sans-serif";color:#17365D'>In P<span style='font-family:"AvantGarde Bk BT","sans-serif";color:#619428'>o<span style='font-family:"AvantGarde Bk BT","sans-serif";color:#17365D'>sse<span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'> – <span style='font-size:8.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'>A subsidiary of<span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'> <span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:#CC0000'>AKF<span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'>| 1500 Walnut Street, Suite 1414, Philadelphia, PA 19102 <o:p></o:p><p class=MsoNormal style='line-height:150%;text-autospace:none'><span style='font-size:9.0pt;line-height:150%;font-family:"Verdana","sans-serif";color:gray'>d: 215-282-6753| m: 267-507-5470| In Posse: 215-282-6800| AKF: 215-735-7290<o:p></o:p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:gray'>e: ADahlstrom@in-posse.com | in posse web: <a href="http://www.in-posse.com/">www.in-posse.com</a> | akf web: <a href="http://www.akfgroup.com/">www.akfgroup.com</a><o:p></o:p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:gray'> <o:p></o:p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:gray'> <o:p></o:p></div><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Times New Roman","serif";color:gray'> <span style='font-size:12.0pt'><o:p></o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:<span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] On Behalf Of Bishop, Bill Sent: Tuesday, March 06, 2012 5:02 PM To: Equest-users@lists.onebuilding.org Subject: [Equest-users] ASHRAE 90.1 Appendix G ventilation when fan cycling<o:p></o:p></div></div><p class=MsoNormal><o:p> </o:p><p class=MsoNormal>I seem to recall that, when fans are cycled during unoccupied periods per G3.1.2.4, ventilation should be zero – at least in the baseline. I have done this before in eQUEST by setting a MIN-AIR-SCH to zero during unoccupied hours. I can’t find any reference to this requirement in Appendix G. However, in the mandatory provisions section 6.4.3.4.3 Shutoff Damper Controls, “Ventilation outdoor air dampers shall be capable of automatically shutting off during preoccupancy building warm-up, cool down, and setback…” (There are exceptions I’m not listing.) Is the general rule that Appendix G and/or LEED models have zero ventilation during unoccupied periods?<o:p></o:p><p class=MsoNormal><o:p> </o:p><p class=MsoNormal>Thanks,<o:p></o:p><p class=MsoNormal>Bill<o:p></o:p><p class=MsoNormal><o:p> </o:p><p class=MsoNormal><a href="mailto:wbishop@pathfinder-ea.com"><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";color:black;text-decoration:none'><img border=0 width=481 height=118 id="Picture_x0020_1" src="cid:image001.png@01CCFC49.40CBC510"></a><o:p></o:p><p class=MsoNormal><o:p> </o:p><p class=MsoNormal><o:p> </o:p></div><br clear=all> This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or redistribute it by any means. Please delete it and any attachments and notify the sender that you have received it in error. Unintended recipients are prohibited from taking action on the basis of information in this e-mail. E-mail messages may contain computer viruses or other defects, may not be accurately replicated on other systems, or may be intercepted, deleted or interfered without the knowledge of the sender or the intended recipient. If you are not comfortable with the risks associated with e-mail messages, you may decide not to use e-mail to communicate with In Posse.

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