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<DIV>Jeremy:</DIV>
<DIV> </DIV>
<DIV>My space is subject to the requirements to model a cooling system in the
baseline.</DIV>
<DIV> </DIV>
<DIV>This is where I am a bit confused. The office area has a specified cooling
and heating system (RTU) but the warehouse area only has a heating system - 15
unit heaters plus a ventilation system. The building is only one level - so
do I model just one cooling and heating system (system 5) or can I model 2
systems? - one for the office and one for the warehouse?</DIV>
<DIV> </DIV>
<DIV>If so how do I treat the fan energy from the unit heaters and the need to
model a boiler and hot water pumps, when no such system exists?</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/3/2011 4:13:10 P.M. Eastern Standard Time,
Jeremy.Poling@transwestern.net writes:</DIV>
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<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Richard,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">First
check against the definitions of “space” on page 13. If the rated
capacity of the heating units for the space is between 3.4 Btuh/SF and the
value in Table 3.1 for your climate zone, then your warehouse space is
considered a semi-heated space and is not subject to the requirement to model
a cooling system in the baseline.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">For
the question on number of systems, what you’re looking is under G3.1.1: “For
systems 5, 6, 7, and 8, each floor shall be modeled with a separate HVAC
system.” That would mean a single system for the entire warehouse
portion of the building and the offices (unless you claim an exemption for the
offices due to G3.1.1.a, G3.1.1.b, G3.1.1.c, or G3.1.1.d). Then note any
requirements for system 5 from the latter portions of appendix
G.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 7.5pt; COLOR: #1f497d; FONT-FAMILY: 'Verdana','sans-serif'">Jeremy
R. Poling, PE, LEED AP+BDC</SPAN></B><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><BR><BR></SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of
</B>RJTHEACMAN@aol.com<BR><B>Sent:</B> Thursday, March 03, 2011 11:48
AM<BR><B>To:</B> equest-users@lists.onebuilding.org<BR><B>Subject:</B>
[Equest-users] Fedx<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">
<o:p></o:p></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">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.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">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.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">That
system is a system 5 packaged vav with reheat, which includes a hot water
boiler. <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">We
have (15) gas-fired unit heaters that provide heat to the
warehouse.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">My
question is do I set up my heating system with 15 hot water boilers, the same
heating capacity as the unit heaters?<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">For
the fan energy, do I set my air quantity the same as my unit
heaters?<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">How
do I address the VAV portion of the system as well as the hot water
pumps?<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">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.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Any
help will be greatly appreciated.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'"> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Richard
Dominick, P.E.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">TEC
Engineers, LLC.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Norwalk,
CT.</SPAN></P></DIV></DIV></DIV></FONT></BLOCKQUOTE></DIV></FONT></BODY></HTML>