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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dear Bill,</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I hope I understood your email properly. </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Please find attached 3 printscreens of my
Baseline input.</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt'><font size=2
color=navy face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;
color:navy'>Ø<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>      
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>For the “Chiller
Loop Attachments.jpg”, is the “Flow Ctrl” correct? i.e., Constant
flor for the Chiller Water Pump and Variable Flow for the Condenser Water Pump</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt'><font size=2
color=navy face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;
color:navy'>Ø<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>      
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>For the “Water
Side.jpg”, is the number of pumps correct on the left tab? i.e., 2 for
each chiller and none under the Chilled Water Loop</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt'><font size=2
color=navy face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;
color:navy'>Ø<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>      
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>I assume that I do not
have to do the same for the Hot Water Loop, right? Should I create 1 pump under
each boiler?</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt'><font size=2
color=navy face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;
color:navy'>Ø<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>      
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>For the “Chilled
Water Loop.jpg”, is the Loop Subtype (Primary) and the Sizing Option
(Secondary) the correct inputs?</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I set my CHW Valves to 2-way valves as per
your email..</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<div>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Many thanks!</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Omar</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>___________________________</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Omar Katanani<br>
Sustainable Design Engineer</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Email: <st1:PersonName style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"><a
href="mailto:omar@ecoconsulting.net">omar@ecoconsulting.net</a></span></font></st1:PersonName></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:7.5pt;font-family:Arial;color:navy'>EcoConsulting (Lebanon)</span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
  style='font-size:7.5pt;font-family:Arial;color:navy'>Nahas</span></font><font
 size=1 color=navy face=Arial><span lang=EN-US style='font-size:7.5pt;
 font-family:Arial;color:navy'> Building</span></font><font size=1 color=navy
face=Arial><span lang=EN-US style='font-size:7.5pt;font-family:Arial;
color:navy'>, 4<sup>th</sup> floor</span></font></p>

<p class=MsoNormal><font
  size=1 color=navy face=Arial><span lang=EN-US style='font-size:7.5pt;
  font-family:Arial;color:navy'>4 St-Maron Street</span></font><font size=1
color=navy face=Arial><span lang=EN-US style='font-size:7.5pt;font-family:Arial;
color:navy'> / Georges Haddad Avenue</span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:7.5pt;font-family:Arial;color:navy'>Postal Code: 2028 5806
SAIFI</span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
  style='font-size:7.5pt;font-family:Arial;color:navy'>Beirut</span></font><font
 size=1 color=navy face=Arial><span lang=EN-US style='font-size:7.5pt;
 font-family:Arial;color:navy'>, Lebanon</span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:7.5pt;font-family:Arial;color:navy'>Tel:          </span></font><font
size=1 color=navy face=Arial><span style='font-size:7.5pt;font-family:Arial;
color:navy'>+961 (0) 1 971 266<br>
  Mobile:    +961 (0) 3 045 045</span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span style='font-size:
7.5pt;font-family:Arial;color:navy'>EcoConsulting (UK) Ltd<br>
28 Marshalsea Road<br>
  London, SE1 1HF<br>
Tel:  +44 (0) 207 939 0989<br>
Fax:  +44 (0) 207 939 0981</span></font></p>

<p class=MsoNormal><font size=1 color=navy face=Arial><span style='font-size:
7.5pt;font-family:Arial;color:navy'>Website: <a
href="http://www.ecoconsulting.net/">www.ecoconsulting.net</a></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>

<p style='margin:0cm;margin-bottom:.0001pt'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> <img border=0
width=870 height=102 src="cid:image001.jpg@01CBBC80.A4485270"></span></font></p>

</div>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>

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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;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>Bishop, Bill<br>
<b><span style='font-weight:bold'>Sent:</span></b> 24 January 2011 20:49<br>
<b><span style='font-weight:bold'>To:</span></b> Heinrich.ib-bauklima.de;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Equest-users] eQUEST
- serios trouble with LEED review</span></font></p>

</div>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Heinrich,</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>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:</span></font></p>

<ul style='margin-top:0cm' type=disc>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;font-family:Arial'>Delete the separate
     pump attached to the primary CHW loop</span></font></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;font-family:Arial'>Relabel the chiller
     pumps to indicate they are primary loop pumps</span></font></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;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></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;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></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;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></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;font-family:Arial'>Allow the chiller
     capacity to default (remove the 0.9 MBtu/h).</span></font></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;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></li>
 <li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
     lang=EN-US style='font-size:10.0pt;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></li>
</ul>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Regards,</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Bill</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>

<div>

<p class=MsoNormal><b><font size=2 color=black
  face="Franklin Gothic Medium Cond"><span lang=EN-US style='font-size:10.0pt;
  font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>William</span></font></b><b><font
 size=2 color=black face="Franklin Gothic Medium Cond"><span lang=EN-US
 style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";color:black;
 font-weight:bold'> Bishop, PE</span></font></b><b><font size=2 color=black
face="Franklin Gothic Medium Cond"><span lang=EN-US style='font-size:10.0pt;
font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>, BEMP,
LEED<sup>®</sup> AP </span></font></b><b><font size=2 color="#006600"
face="Franklin Gothic Medium Cond"><span lang=EN-US style='font-size:10.0pt;
font-family:"Franklin Gothic Medium Cond";color:#006600;font-weight:bold'>|</span></font></b><b><font
size=2 color=black face="Franklin Gothic Medium Cond"><span lang=EN-US
style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";color:black;
font-weight:bold'> </span></font></b><b><font size=2 color=black
face="Franklin Gothic Medium Cond"><span lang=EN-US style='font-size:10.0pt;
font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>Pathfinder
Engineers & Architects LLP</span></font></b></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:black'>Mechanical Engineer</span></font></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span lang=EN-US
style='font-size:5.0pt;font-family:Arial;color:black'> </span></font></p>

<p class=MsoNormal><span style='position:absolute;z-index:-1;margin-left:367px;
margin-top:17px;width:60px;height:58px'><img width=60 height=58
src="cid:image002.jpg@01CBBC80.A4485270"></span><font size=1 color=navy
  face=Arial><span lang=EN-US style='font-size:9.0pt;font-family:Arial;
  color:navy'>134 South Fitzhugh Street</span></font><font size=1 color=navy><span
 lang=EN-US style='font-size:9.0pt;color:navy'>                 </span></font><font size=1 color=navy face=Arial><span lang=EN-US style='font-size:9.0pt;font-family:
  Arial;color:navy'>Rochester</span></font><font size=1 color=navy face=Arial><span
 lang=EN-US style='font-size:9.0pt;font-family:Arial;color:navy'>, NY 14608</span></font><font size=1 color=navy><span lang=EN-US style='font-size:9.0pt;
color:navy'><br>
</span></font><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:navy'>T: (585) 325-6004 </span></font><font
size=1 color=black face=Arial><span lang=EN-US style='font-size:9.0pt;
font-family:Arial;color:black'>Ext. 114</span></font><font color=navy><span
lang=EN-US style='color:navy'>            </span></font><font size=1
color=navy face=Arial><span lang=EN-US style='font-size:9.0pt;font-family:Arial;
color:navy'>F: (585) 325-6005</span></font></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span lang=EN-US
style='font-size:9.0pt;font-family:Arial;color:black'><a
href="mailto:wbishop@pathfinder-ea.com">wbishop@pathfinder-ea.com</a>           </span></font><font
size=1 color=black face=Arial><span lang=EN-US style='font-size:9.0pt;
font-family:Arial;color:black'><a href="http://www.pathfinder-ea.com/">www.pathfinder-ea.com</a></span></font></p>

<p class=MsoNormal><font size=5 color=green face=Webdings><span lang=EN-US
style='font-size:18.0pt;font-family:Webdings;color:green'>P</span></font><font
color=green><span lang=EN-US style='color:green'>   </span></font><font size=1
color=green><span lang=EN-US style='font-size:7.5pt;color:green'>Sustainability
– the forest AND the trees.</span></font><font size=5 color=green
face=Webdings><span lang=EN-US style='font-size:18.0pt;font-family:Webdings;
color:green'> P </span></font></p>

</div>

<div>

<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

</span></font></div>

<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;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></p>

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<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>Hi Everyone,</span></font></p>

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style='font-size:12.0pt'> </span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>I got a review comment that got me in big trouble and
I can't find the solution yet.</span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>May be there is no solution for this in eQUEST....!</span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>I rate this forum as the very best address for
difficulties with eQUEST and LEED EAc1 simulation.</span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>So please give me some guidance and feel free to
testthe model attached.</span></font></p>

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style='font-size:12.0pt'> </span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>Hereare the two comments of the reviewer.</span></font></p>

<p class=MsoNormal><em><i><font size=3 face=Arial><span lang=DE
style='font-size:12.0pt;font-family:Arial'>"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></p>

<p><em><i><font size=3 face=Arial><span lang=DE style='font-size:12.0pt;
font-family:Arial'>"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></p>

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<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>I have to say:</span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;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></p>

<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;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></p>

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<p class=MsoNormal><font size=3 face=Arial><span lang=EN-US style='font-size:
12.0pt;font-family:Arial'>Heinrich</span></font></p>

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