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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:10.0pt;font-family:"Segoe UI","sans-serif"'>Hey all,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>I’m about to begin a LEED energy model for a warehouse project that contains a very large process load. It will be a major renovation project. The building will be broken out as 50,000 sq ft office and 300,000 sq ft warehouse. The anticipated HVAC systems on the project are package rooftop units with DX cooling/gas heating for both the office and warehouse areas. The warehouse space requires cooling and heating.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Two issues that come to light:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Large Process Load<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l0 level2 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><span style='mso-list:Ignore'>a.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Anticipated process load will consume roughly 40-60% of the buildings annual energy consumption. The Exceptional calculation method has been considered. However, the process being done at this facility is extraordinary and there is not a “baseline” to compare savings off of.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Baseline System<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l0 level2 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><span style='mso-list:Ignore'>a.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Based on the size of the warehouse, System 7 will be modeled. This system is a packaged rooftop VAV with reheat with chilled water and hot water boiler system. Based on previous experience and preliminary modeling results, the baseline system will be more energy efficient than the package rooftop units with DX cooling/gas heating. There’s been a suggestion by our team to request a LEED Interpretation and to possible change the baseline system to also packaged rooftop units with DX cooling/gas heating as that is typically designed for warehouse type facilities.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Based on these two issues, I am having a hard time foreseeing this project being able to hit the minimum 5% savings requirement on major renovations. I searched the LEED Interpretations database but didn’t find one that dealt with a project that had both these issues.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'>Any suggestions? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'>William Mak, LEED AP BD+C</span></b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>Mechanical Design Engineer</span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:black'><br></span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><b><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'>EPSTEIN</span></b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>Architecture<br>Interiors<br>Engineering<br>Construction<br><br>600 West Fulton Street<br>Chicago, Illinois 60661-1259<br><br>D: (312) 429-8116<br>F: (312) 429-8800</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>E:</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#0070C0'> <a href="mailto:wmak@epsteinglobal.com"><span style='color:blue'>wmak@epsteinglobal.com</span></a></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'><br>W:</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'> <a href="http://www.epsteinglobal.com/"><span style='color:#C75B12'>www.epsteinglobal.com</span></a></span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:black'><br><br></span><span style='font-size:10.0pt;font-family:Webdings;color:#00B050'>þ</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'> Epstein is a firm believer in sustainability. We ask that you please consider the environment before printing this e-mail.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>