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<DIV><SPAN class=890062716-21012011>
<P class=MsoNormal><FONT face=Arial><SPAN class=890062716-21012011>Hi
</SPAN>Everyone,<o:p></o:p></FONT></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN
class=890062716-21012011></SPAN></FONT></o:p> </P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>I got a
review comment that got me in big trouble and I can't find the solution
yet.</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>May be
there is no solution for this in eQUEST....!</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>I rate
this forum as the very best address for difficulties with eQUEST and LEED EAc1
simulation.</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>So
please give me some guidance and feel free to test the model
attached.</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN
class=890062716-21012011></SPAN></FONT></o:p> </P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN
class=890062716-21012011>Here are the two comments of the
reviewer.</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><SPAN class=890062716-21012011><SPAN lang=DE><FONT
face=Arial><EM>"It appears as if the pumps and circulation loops were not
modeled correctly for the Baseline Case. It appears based on the PS-C reports
that there is only one primary chilled water pump and one condenser water pump
for the Baseline Case. However, ASHRAE 90.1 Section G3.1.11 requires that each
chiller be modeled with separate condenser water and chilled water pumps
interlocked to operate with each associated chiller. Please model two primary
chilled water pumps and two primary condenser water pumps in accordance with
Section G3.1.11. Also update the chilled water valves to two-way valves so that
the secondary chilled water loop operates as a variable flow loop with pumps
riding the curve. Provide updated PS-C reports confirming that the changes have
been made."</EM></FONT></P>
<P><FONT face=Arial><EM><SPAN class=890062716-21012011>"</SPAN>It is unclear why
the pump flow for the secondary chilled water loop is so much larger than that
of the primary chilled water loop when the temperature differential for both
loops is expected to be the same. It also appears based on the outputs in PS-C
that the secondary chilled water loop is operated at the same load for every
hour that it is on even though it is a variable speed pump. Please update the
secondary chilled water loop flow to be consistent with the primary chilled
water loop flow, and confirm that the secondary chilled water loop is operating
as a variable flow loop.<SPAN
class=890062716-21012011>"</SPAN></EM></FONT></P></SPAN></SPAN></o:p>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN
class=890062716-21012011></SPAN></FONT></o:p> </P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>I have
to say:</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>I didn't
see any equest-model modeled with separate condenser water and chilled water
pumps interlocked to operate with each associated chiller.
</SPAN></FONT></o:p></P>
<P class=MsoNormal><o:p><FONT face=Arial><SPAN class=890062716-21012011>I
manually resized the boilers and chillers with reference to SS-D report, because
auto sizing of eQUEST generated capacities that were double the size of SS-D
report. </SPAN></FONT></o:p><o:p><FONT face=Arial><SPAN
class=890062716-21012011>Resizing of the volume flow of secondary loop of
chillers according to primary loop of chillers generated warning messages
but changed nothing.</SPAN></FONT></o:p></P>
<P class=MsoNormal><FONT face=Arial></FONT><FONT face=Arial></FONT></SPAN><SPAN
class=890062716-21012011><SPAN class=890062716-21012011><FONT face=Arial><SPAN
class=890062716-21012011></SPAN></FONT></SPAN></SPAN> </P>
<P class=MsoNormal><SPAN class=890062716-21012011><SPAN
class=890062716-21012011><FONT face=Arial><SPAN
class=890062716-21012011>Heinrich</SPAN></FONT></P></DIV>
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