<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 HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello – I have a question about relief fans in a LEED baseline eQuest model. I’m using the baseline fan power spreadsheet to calculate kW/cfm. If a system has both a supply and a return fan then the accepted method splits the supply fan power between the two fans. However, if the system has a supply fan and a relief fan that, in theory anyway, comes on only during economizer cooling, I don’t think that splitting up the supply fan power between the supply and relief fans makes sense. The relief fan will only run part of the year, especially in climate zone 6b. So it won’t be a good representation of the fan energy and ends penalizing the proposed model energy savings. Does anyone have any experience with this in regards to what the LEED reviewers might accept?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>v.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Vicki Lynne, PE<o:p></o:p></p><p class=MsoNormal>National Center for Appropriate Technology<o:p></o:p></p><p class=MsoNormal>PO Box 3838<o:p></o:p></p><p class=MsoNormal>Butte, MT 59728<o:p></o:p></p><p class=MsoNormal>Home office 406.492.8166<o:p></o:p></p><p class=MsoNormal><a href="mailto:vickil@ncat.org">vickil@ncat.org</a> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>