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<DIV>I am modeling a 110,000 sf. Fedex sorting facility for LEED and the
building has a small office area that is heated and cooled by rooftop
units and the remainder of the warehouse is only heated.</DIV>
<DIV> </DIV>
<DIV>In accordance with ASHRAE 90.1 2007 if no cooling system exists the cooling
system shall be identical to the system modeled in the baseline building
design.</DIV>
<DIV> </DIV>
<DIV>That system is a system 5 packaged vav with reheat, which includes a hot
water boiler. </DIV>
<DIV> </DIV>
<DIV>We have (15) gas-fired unit heaters that provide heat to the
warehouse.</DIV>
<DIV> </DIV>
<DIV>My question is do I set up my heating system with 15 hot water boilers, the
same heating capacity as the unit heaters?</DIV>
<DIV> </DIV>
<DIV>For the fan energy, do I set my air quantity the same as my unit
heaters?</DIV>
<DIV> </DIV>
<DIV>How do I address the VAV portion of the system as well as the hot water
pumps?</DIV>
<DIV> </DIV>
<DIV>I have my model setup with (2) separate HVAC systems (1) Packaged VAV with
Reheat and (2) Packaged rooftop DX units with a gas furnace.</DIV>
<DIV> </DIV>
<DIV>Any help will be greatly appreciated.</DIV>
<DIV> </DIV>
<DIV>Richard Dominick, P.E.</DIV>
<DIV>TEC Engineers, LLC.</DIV>
<DIV>Norwalk, CT.</DIV></DIV></FONT></BODY></HTML>