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<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2>Bill,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2>I didn't oversize the chillers and
boilers. I used 0.5 for the capacity ratios of the chillers and
boilers as you told me, more precisely 0.575 for the 2 chillers and 0.625 for
the 2 boilers.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2>You can see it in the eQUEST
model.</FONT></SPAN></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2><SPAN class=984294417-25012011></SPAN>eQUEST calculates
this big capacities that create this poor part loads.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2>Don't you think part loads < 50% are a problem for the
model review?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=984294417-25012011><FONT face=Arial
color=#0000ff size=2>Heinrich</FONT></SPAN></DIV>
<DIV class=Section1><FONT face=Arial color=#0000ff
size=2></FONT> </DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=de dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>Von:</B> Bishop, Bill
[mailto:wbishop@pathfinder-ea.com] <BR><B>Gesendet:</B> Dienstag, 25. Januar
2011 18:20<BR><B>An:</B> Heinrich.ib-bauklima.de;
equest-users@lists.onebuilding.org<BR><B>Betreff:</B> RE: Again: eQUEST -
serious trouble with LEED review<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Heinrich,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">As Ravi Srinivasan
suggested yesterday, don’t oversize the chillers and boilers. Use 0.50 for
their capacity ratios. I believe the consensus in the modeling community is to
do the <SPAN class=SpellE>oversizing</SPAN> only at the system level,
adjusting the cool sizing ratio and heat sizing ratio (not the system sizing
ratio). It would not be surprising for the chillers and boilers to spend a
majority of the time at low part load, since they are <SPAN
class=SpellE>autosized</SPAN> based on total design loads and <SPAN
class=SpellE>flowrates</SPAN> of all attached equipment and processes. This is
not a “problem” for the baseline.</SPAN></FONT><o:p></o:p></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bill</SPAN></FONT><FONT
face=Webdings color=green size=5><SPAN
style="FONT-SIZE: 18pt; COLOR: green; FONT-FAMILY: Webdings; mso-bidi-font-family: Webdings; mso-no-proof: yes"><SPAN
style="mso-tab-count: 1"> </SPAN></SPAN></FONT><FONT
color=green><SPAN style="COLOR: green"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
Heinrich.ib-bauklima.de [mailto:heinrich@ib-bauklima.de] <BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, January 25, 2011 5:41
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> <st1:PersonName
w:st="on">Bishop, Bill</st1:PersonName>;
equest-users@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Again: eQUEST - serious trouble
with LEED review</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Bill,</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">thank you for your
advice.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">I followed your
instructions to change the model.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">So I resolved the
indicated reviewer comments.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Now there is no
difference between secondary and primary chilled water
loop.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">But now I have the
dilemma that chillers and boilers of Baseline are heavily oversized and are
not sized to 115% and 125% respectively according to demands of
ASHRAE-90.1 App. G.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">For checkup you can
look at the Screenshots of the PS-C report, PV-A report and the SS-D
report that I have attached.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">The part load of the
chillers is about 40%-50% meaning a size 200%-250% (see pump secondary CHW in
PS-C report). <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">The part load of the
boilers is about 50%-60% meaning a size of 167%-200% (see pump HW in PS-C
report).<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">So I still have a
serious problem. Any help would heavily
appreciated.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Can we solve this
problem in eQUEST?</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Heinrich</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<BLOCKQUOTE
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 4.2pt; BORDER-LEFT: blue 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN lang=DE
style="FONT-SIZE: 12pt; mso-ansi-language: DE">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><B><FONT face=Tahoma
size=2><SPAN lang=DE
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma; mso-ansi-language: DE">Von:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN lang=DE
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma; mso-ansi-language: DE">
<st1:PersonName w:st="on">Bishop, Bill</st1:PersonName>
[mailto:wbishop@pathfinder-ea.com] <BR><B><SPAN
style="FONT-WEIGHT: bold">Gesendet:</SPAN></B> Montag, 24. Januar 2011
19:49<BR><B><SPAN style="FONT-WEIGHT: bold">An:</SPAN></B>
Heinrich.ib-bauklima.de; equest-users@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Betreff:</SPAN></B> RE: [Equest-users] eQUEST -
serios trouble with LEED review</SPAN></FONT><SPAN lang=DE
style="mso-ansi-language: DE"><o:p></o:p></SPAN></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Heinrich,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The chiller pumps
requirement your reviewer is referring to is in Section G3.1.3.11 (not
G3.1.11). The model you sent currently has one primary CHW pump attached to
each of your two chillers, a separate primary CHW pump on the primary loop,
one secondary CHW pump and one condenser water pump. You labeled your
primary chiller pumps “Secondary Pump CHW 1” and “Secondary Pump CHW 2”,
which is probably why the reviewer thinks you only have one primary pump
(the one on the primary CHW loop labeled “Primary CHW Pump”). I suggest
making the following changes:<o:p></o:p></SPAN></FONT></P>
<UL style="MARGIN-TOP: 0in" type=disc>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Delete the separate pump
attached to the primary CHW loop</SPAN></FONT> <FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Relabel the chiller pumps to
indicate they are primary loop pumps</SPAN></FONT> <FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Add condenser water pumps for
each chiller through the “Loop Attachments” tab of the chillers; delete
the other CW pump.</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Change both the primary loop
and secondary loop sizing option to “secondary” to allow eQUEST to size
based on coil loads.</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Change the chiller capacity
ratio for each chiller to 0.50. (Or use 0.575 if you want to oversize by
15% per G3.1.2.2 – I don’t know if this is supposed to apply to chillers.)
Each chiller will be sized for half the total load.</SPAN></FONT> <FONT
face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Allow the chiller capacity to
default (remove the 0.9 MBtu/h).</SPAN></FONT> <FONT face=Arial
size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Make sure you include both/all
pages of the PS-C report – your reviewer will then see that the secondary
CHW pump is variable flow. (Your zones have two-way valves
already.)</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT>
<LI class=MsoNormal
style="COLOR: navy; mso-list: l0 level1 lfo1; tab-stops: list .5in"><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The PV-A report will show that
the total primary CHW pump flow will nearly match the secondary CHW pump
flow.</SPAN></FONT> <FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></LI></UL>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Regards,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bill<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><B
style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes; mso-bidi-font-weight: normal">William</SPAN></FONT></B></st1:City><B
style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes; mso-bidi-font-weight: normal">
<st1:State w:st="on">Bishop</st1:State>, <st1:State
w:st="on">PE</st1:State></SPAN></FONT></B></st1:place><B
style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes; mso-bidi-font-weight: normal">,
BEMP, LEED<SUP>®</SUP> AP </SPAN></FONT></B><B
style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=#006600 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #006600; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes; mso-bidi-font-weight: normal">|</SPAN></FONT></B><B
style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes; mso-bidi-font-weight: normal">
</SPAN></FONT></B><B style="mso-bidi-font-weight: normal"><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-bidi-font-size: 12.0pt; mso-no-proof: yes; mso-bidi-font-weight: normal">Pathfinder
Engineers & Architects LLP</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=black size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes">Mechanical
Engineer<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 5pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600"
o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f"
stroked="f">
<v:stroke joinstyle="miter" />
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<o:lock v:ext="edit" aspectratio="t" />
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margin-left:275.35pt;margin-top:12.75pt;width:45.2pt;height:43.55pt;z-index:-1'>
<v:imagedata src="Top%20100%20Rochester%202010" />
</v:shape><![endif]--><![if !vml]><SPAN
style="MARGIN-TOP: 17px; Z-INDEX: -1; MARGIN-LEFT: 367px; WIDTH: 60px; POSITION: absolute; HEIGHT: 58px; mso-ignore: vglayout"><IMG
height=58 src="Top%20100%20Rochester%202010" width=60
v:shapes="_x0000_s1026"></SPAN><![endif]><st1:Street w:st="on"><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">134
South Fitzhugh Street</SPAN></FONT></st1:Street><FONT color=navy
size=1><SPAN style="FONT-SIZE: 9pt; COLOR: navy; mso-no-proof: yes"><SPAN
style="mso-tab-count: 2">
</SPAN></SPAN></FONT><st1:City w:st="on"><FONT face=Arial color=navy
size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">Rochester</SPAN></FONT></st1:City><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">,
<st1:State w:st="on">NY</st1:State> <st1:PostalCode
w:st="on">14608</st1:PostalCode></SPAN></FONT><FONT color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; mso-no-proof: yes"><BR></SPAN></FONT><FONT
face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">T:
(585) 325-6004 </SPAN></FONT><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes">Ext.
114</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy; mso-no-proof: yes"><SPAN
style="mso-tab-count: 1">
</SPAN></SPAN></FONT><FONT face=Arial color=navy size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial; mso-no-proof: yes">F:
(585) 325-6005</SPAN></FONT><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-no-proof: yes"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-no-proof: yes"><A
href="mailto:wbishop@pathfinder-ea.com">wbishop@pathfinder-ea.com</A><SPAN
style="mso-tab-count: 1">
</SPAN></SPAN></FONT><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt; mso-no-proof: yes"><A
href="http://www.pathfinder-ea.com/">www.pathfinder-ea.com</A><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Webdings color=green size=5><SPAN
style="FONT-SIZE: 18pt; COLOR: green; FONT-FAMILY: Webdings; mso-bidi-font-family: Webdings; mso-no-proof: yes">P</SPAN></FONT><FONT
color=green><SPAN style="COLOR: green; mso-no-proof: yes"><SPAN
style="mso-spacerun: yes"> </SPAN></SPAN></FONT><FONT
color=green size=1><SPAN
style="FONT-SIZE: 7.5pt; COLOR: green; mso-no-proof: yes">Sustainability –
the forest AND the trees.</SPAN></FONT><FONT face=Webdings color=green
size=5><SPAN
style="FONT-SIZE: 18pt; COLOR: green; FONT-FAMILY: Webdings; mso-bidi-font-family: Webdings; mso-no-proof: yes">
P<SPAN style="mso-tab-count: 1"> </SPAN></SPAN></FONT><FONT
color=green><SPAN style="COLOR: green"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of
</SPAN></B>Heinrich.ib-bauklima.de<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, January 24, 2011 12:28
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
equest-users@lists.onebuilding.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Equest-users] eQUEST - serios
trouble with LEED review</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Hi
Everyone,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">I got a
review comment that got me in big trouble and I can't find the solution
yet.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">May be
there is no solution for this in eQUEST....!</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">I rate
this forum as the very best address for difficulties with eQUEST and LEED
EAc1 simulation.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">So
please give me some guidance and feel free to testthe model
attached.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Hereare
the two comments of the reviewer.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><EM><I><FONT
face=Arial size=3><SPAN lang=DE
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; mso-ansi-language: DE">"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."</SPAN></FONT></I></EM><o:p></o:p></P>
<P><EM><I><FONT face=Arial size=3><SPAN lang=DE
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; mso-ansi-language: DE">"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></FONT></I></EM><SPAN lang=DE
style="mso-ansi-language: DE"><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">I have
to say:</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">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></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">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. Resizing of the volume flow of secondary loop of chillers
according to primary loop of chillers generated warningmessages but changed
nothing.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT
face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Heinrich</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></BODY></HTML>