[Bldg-sim] High hours outside throttling range

[Lam, Linda]

To All,
 
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.  
 
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%.
 
My question is, am I allowed to "allocate" cfm to the internal zones like that?
 
Thanks very much in advance!
Linda
 
 
 
 
Linda Lam, LEED® AP
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
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