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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:11.0pt;color:#1F497D'>Brad,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'> I believe the unmet hours refers to the entire building. If the unmet hours for the different systems occur at the same time they are counted as one unmet hours regardless of the number of systems that indicate that the unmet hours have occurred at that time. <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;color:#1F497D'>Robert O'Connell P.E. CEM CEA<br>M/E Engineering P.C. <br></span><span style='color:#1F497D'>Senior Engineer <br>HVAC Group <br>150 North Chestnut Street <br>Rochester, New York 14604 <br>Office 585-288-5590 Ext. 347 <br>Cell: 585-727-8517 <br>Email: <a href="mailto:reoconnell@meengineering.com"><span style='color:blue'>reoconnell@meengineering.com</span></a> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;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>Brad Robinson<br><b>Sent:</b> Thursday, July 07, 2011 11:16 AM<br><b>To:</b> Patrick J. O'Leary, Jr.<br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Unmet Hours<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Hmmm..<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Does that mean you need to sum the unmet hours of ALL separate systems as well?<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>In regards to the unmet cooling, LEED NC-2009 (Canada) notes that it is acceptable to have unmet cooling hours. I interpreted this to mean that the unmet hours of concern are only on the heating side, not the cooling.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> "Patrick J. O'Leary, Jr." <poleary1969@gmail.com><br><b>To:</b> Brad Robinson <brad.robinson@yahoo.com><br><b>Cc:</b> "equest-users@lists.onebuilding.org" <equest-users@lists.onebuilding.org><br><b>Sent:</b> Thursday, July 7, 2011 10:56:08 AM<br><b>Subject:</b> Re: [Equest-users] Unmet Hours</span><span style='color:black'><o:p></o:p></span></p><div id=yiv543004948><p class=MsoNormal style='background:white'><span style='color:black'>that would be 500 unmet hours.<br><br>the bigger leed review problem i've had is when i have more unmet hours in one category in the proposed (like 200 unmet in cooling) and fewer unmet hours in the other (like 0 in heating) but the baseline is opposite. certain leed reviewers think this is a problem. the 90.1 requirement addresses the unmet hours per the entire building design (both heating and cooling) not heating and cooling individually.<br><br>On 7/7/11 7:49 AM, Brad Robinson wrote: <o:p></o:p></span></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>For LEED compliance under ASHRAE 90.1, are the 300 unmet hours the sum of all the unmet hours in each zone, or the peak per zone? In other words if I have 250 unmet hours in one zone and 250 unmet hours in another zone, does this comply, or is it considered 500 unmet hours total? By zones, I mean thermal zones served by the same air handling unit. Thanks.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Brad Robinson<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div></div><pre style='background:white'><span style='color:black'><o:p> </o:p></span></pre><pre style='background:white'><span style='color:black'>_______________________________________________<o:p></o:p></span></pre><pre style='background:white'><span style='color:black'>Equest-users mailing list<o:p></o:p></span></pre><pre style='background:white'><span style='color:black'><a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><o:p></o:p></span></pre><pre style='background:white'><span style='color:black'>To unsubscribe from this mailing list send a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" target="_blank">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><o:p></o:p></span></pre><pre style='background:white'><span style='color:black'> <o:p></o:p></span></pre><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='color:black'><o:p> </o:p></span></p></div></div></div><p class=MsoNormal><br>________________________________________________________________________<br>This Email has been scanned for all viruses by PAETEC's Hosted E-mail Security Services, utilizing MessageLabs proprietary SkyScan infrastructure. 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