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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When performing a 90.1 2007 Appendix G energy model, the baseline system for the building appears to call for a packaged single zone air handler and an airside economizer for individual IDF and Electrical rooms. The proposed systems are designed as FCUs. Although not addressed in Appendix G, section 6.5.1, would appear to exempt the airside economizers in rooms requiring a low cooling capacity. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>With that said, is it correct to reference other parts of ASHRAE 90.1 (prescriptive path Sec 6.5) when performing a performance based Appendix G energy cost comparison?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Your help and clarification would be much appreciated. I apologize if this is not the correct forum for this post and would be greatly obliged if you were to direct me to the correct forum.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Connor<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=624 style='width:6.5in;border-collapse:collapse'><tr style='height:16.8pt'><td width=139 nowrap valign=top style='width:104.3pt;padding:.2in 0in .2in 0in;height:16.8pt'><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#498871'>Connor Jansen, PE</span></b><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#498871'>Built Ecology Specialist</span><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p></td><td width=145 nowrap valign=top style='width:108.85pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>405 Howard Street</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>Suite 500 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>San Francisco CA 94105</span><span style='font-size:12.0pt;color:navy'><o:p></o:p></span></p></td><td width=135 nowrap valign=top style='width:101.45pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>T. </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 398 3833</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>D.</span><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 402 2721<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>F. </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>+1 415 433 5311</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p></td><td width=205 nowrap valign=top style='width:153.4pt;padding:.2in 0in .2in .1in;height:16.8pt'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>E</span><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:navy'>.</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><a href="mailto:connor.jansen@wspfk.com"><span style='color:black'>connor.jansen@wspfk.com</span></a></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal align=right style='text-align:right'><span style='font-size:7.0pt;font-family:"Arial","sans-serif";color:#8CB4A1'>W.</span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'> <a href="http://www.built-ecology.com/"><span style='color:black'>built-ecology.com</span></a></span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><img border=0 width=83 height=110 id="Picture_x0020_1" src="cid:image001.gif@01CC4094.3C11AAB0" alt="Description: built-ecology"></span><span style='font-family:"Arial","sans-serif";color:navy'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#969696'>A specialist service of WSP Flack + Kurtz<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>