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<DIV><SPAN class=651085918-04032009><FONT face=Arial size=2>To
All,</FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial size=2>I've got a high
number of hours outside throttling range for a 27-story building in India (40%
of hours). It is a VAV with electric reheat. Upon inputting 40,000
cfm per floor (25,000 sf), I get down to about 3% of hours outside throttling
range. However, Trace only calls for about 20,000 cfm per floor. I
double checked all my load inputs across both programs and it seems like
occupancy, lights and equipment loads match up. </FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial size=2>I noticed that most
of my unmet cooling load hours occur in my internal zones. So I input a
system total supply volume of 25,000 cfm per floor and also allocated 16,000 cfm
to the internal zones. This decreased the number of hours outside throttling
range to about 4%.</FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial size=2>My question is, am I
allowed to "allocate" cfm to the internal zones like that?</FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial size=2>Thanks very much in
advance!</FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2>Linda</FONT></SPAN></DIV>
<DIV><SPAN class=651085918-04032009><FONT face=Arial
size=2></FONT></SPAN> </DIV>
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size=2></FONT></SPAN> </DIV>
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WSP Flack + Kurtz
405 Howard Street, Suite 500
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