<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Century Gothic";
panose-1:2 11 5 2 2 2 2 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:navy;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=blue><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The formula for G3.1.2.9 inlcudes the fan power for both the supply and return fans.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The baseline model should usually be modeled as per the design i.e. if there are return fans then model them. However if for some reason you would like to calculate the supply and return power together and enter it as a supply fan you can do so also. You shouldn’t ignore the return. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span lang=EN-GB style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#333399'>Christie Rimes, LEED BD+C</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><i><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#66737D'>Designer</span></i></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333399'>WSP</span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#0069FB'> </span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333399'>▪</span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#0069FB'> </span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>FLACK + KURTZ</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#66737D'>405 Howard Street, Suite 500<o:p></o:p></span></b></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#66737D'>San Francisco, CA 94105</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#66737D'>Direct: 415.402.2727 | Main: 415.398.3833</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#66737D'><a href="http://www.wspfk.com/" title="http://www.wspfk.com/"><span style='font-family:"Times New Roman","serif"'>www.wspfk.com</span></a></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#66737D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:green'>Ensuring that today’s built environment preserves</span></b><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:navy'> </span></b><b><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:green'>the natural environment in which we all live.</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'>We are WSP.</span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span></b><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'>United by our difference.</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:gray'> </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>WSP is one of the world’s fastest-growing design, engineering and management consultancies. Specializing in property, transport and environmental projects, we work with clients to create built and natural environments for the future.</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif";color:gray'>CONFIDENTIAL<br>This e-mail is confidential to the named recipient. If you have received a copy in error, please destroy it. You may not use or disclose the contents of this e-mail to anyone, nor take copies of it. The only copies permitted are (1) by the named recipient and (2) for the purposes of completing successful electronic transmission to the named recipient and then only on the condition that these copies, with this notice attached, are kept confidential until destruction</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";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>Jeff Ross-Bain<br><b>Sent:</b> Monday, April 18, 2011 12:47 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] ASHRAE G3.1.2.9 Supply Fan Power<o:p></o:p></span></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:navy'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>If an HVAC system comprises both a supply and return fan, and the formula for G3.1.2.9 is used, does the result, P<i>fan</i>, represent ALL of the fan power for that system including supply and return? If so, should the baseline model only depict the supply fan values (CFM, kW/CFM, etc.) and ignore the return? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Many thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:#006E78'>Jeffrey G Ross-Bain, PE, LEED AP, BEMP</span></b><span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:#535053'>404-228-2893 office </span></b><span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:#535053'>404-408-2577 mobile<br></span></b><b><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:#006E78'><a href="http://www.rbgb.com">www.rbgb.com</a></span></b><o:p></o:p></p></div></div></body></html>