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<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2>All,</FONT></SPAN></DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial size=2>I am a little
confused on how to apply fan power to the baseline building using Appendix
G. Per G3.1.2.8 ".... If return or relief fans are specified in the
proposed design, the baseline building design shall also be modeled with fans
serving the same functions and sized for the baseline system supply fan air
quantity less the minimum outdoor air, or 90% of the supply fan air quantity,
whichever is larger." </FONT></SPAN></DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial size=2>Following are
comments from two USGBC reviewers on different projects:</FONT></SPAN></DIV>
<UL>
<LI><SPAN class=458390719-11052010><FONT face=Arial size=2><FONT
face="Times New Roman" size=3>Please note that the Baseline fan power
calculated in Section G3.1.2.9 refers to the sum of the supply, return,
exhaust, and relief fans for each HVAC system.</FONT></FONT></SPAN></LI>
<LI><SPAN class=458390719-11052010><FONT face=Arial size=2><FONT
face="Times New Roman" size=3>Finally, the fan power for the Baseline Case
must be calculated according to Table G3.1.2.9 where CFM refers to the supply
CFM (not supply + exhaust + dedicated outside air), and where the fan power
refers to the sum of all supply, return, exhaust, and relief fans for each
zone.</FONT></FONT></SPAN></LI></UL>
<DIV><SPAN class=458390719-11052010><FONT face=Arial size=2>Should the airflows
be summed, calculate the fan power and then prorate the power to each fan based
on cfm?</FONT></SPAN></DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=458390719-11052010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV align=left>
<DIV align=left><STRONG><FONT face=Arial size=2>Robert
Vogt</FONT></STRONG></DIV>
<DIV align=left><FONT face=Arial size=1>Mechanical Group, LEED Accredited
Professional</FONT></DIV>
<DIV align=left><STRONG><FONT face=ar color=#ff0000>Luckett &
Farley</FONT></STRONG></DIV>
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