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<div class=Section1>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'>Dear Bill,</span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'> </span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'>Many thanks for your feedback. I am really grateful!</span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'> </span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'>Attached are updated screenshots as per your email. Please
find my questions/comments below:</span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'> </span></font></b></h5>
<h5 style='margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:
.0001pt;text-indent:-18.0pt'><b><font size=2 color=navy face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;color:navy;font-weight:normal'>Ø<font
size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></font></b><font color=navy face=Arial><span
style='font-family:Arial;color:navy;font-weight:normal'>For “Secondary
CHW Pump.JPG”, there appears to be a conflict in the “Capacity
Control” input box with your previous email:</span></font></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:normal'> </span></font></b></h5>
<h5 style='margin:0cm;margin-bottom:.0001pt;text-indent:36.0pt'><b><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-weight:normal'>If you check the help function of “Capacity
Control”, you get the following:</span></font></b></h5>
<h5 style='margin-left:72.0pt'><b><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>CAP-CTRL</span></font></b></h5>
<p class=MsoBodyText style='margin-left:72.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Accepts a code-word that
defines how the pump modulates as the flow varies. When you specify NUMBER to
be more than one, then the pumps will first stage according to the load
and then modulate capacity according to the CAP-CTRL mode:</span></font></p>
<p class=codeword style='margin-left:72.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>ONE-SPEED-PUMP
<b><u><span style='font-weight:bold'>The pump rides its curve as the flow varies
(2-way valves in at least one system are necessary for this to happen).</span></u></b></span></font></p>
<p class=codeword style='margin-left:72.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>TWO-SPEED-PUMP
The pump can operate at two speeds. The low-speed is determined by MIN-SPEED.
You should choose MIN-SPEED to match the actual low speed ratio of the pump,
typically 0.67 or 0.5.</span></font></p>
<p class=codeword style='margin-left:72.0pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>VAR-SPEED-PUMP
The pump has a variable frequency drive. The minimum pump speed is specified by
MIN-SPEED. Note that a pump’s speed is not usually proportional to flow;
speed is a function of both the pump flow as well as the pump head requirement.
If the pump head requirement does not fall off as the square of flow (for
example, when the pump has a fixed head setpoint), then the pump will operate
at a speed higher than it would otherwise.</span></font></p>
<h5 style='margin-left:36.0pt'><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:normal'>As per
Appendix G, my conditioned area is less than 11,148 m<sup>2</sup>, therefore
the secondary pump must ride the curve. According to the DOE help above (<u>underlined</u>),
2-way valves must be selected in order for the pump to ride its curve. You said
in your email that 3-way valves are required if the pump rides the curve. </span></font></b></h5>
<h5 style='margin-left:36.0pt;text-indent:-18.0pt'><b><font size=2 color=navy
face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;color:navy;
font-weight:normal'>Ø<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></font></b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
normal'>Shall I input 3-way or 2-way valves for the “Valve Type” of
the secondary chilled water loop (“Secondary CHW Loop.JPG”)?</span></font></h5>
<h5 style='margin-left:18.0pt'><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:normal'> </span></font></b></h5>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In total, there are 3 inputs which I need
to make sure of and hereby request your kind comments:</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>
<ol style='margin-top:0cm' start=1 type=1>
<li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Air-Side HVAC System Properties
> Cooling > <b><u><span style='font-weight:bold'>CHW Valve Type</span></u></b></span></font></li>
<li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Secondary Chiller Water Loop > Basic Specifications > <b><u><span style='font-weight:bold'>Valve Type</span></u></b></span></font></li>
<li class=MsoNormal style='color:navy'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Secondary Chiller Water Pump
> Basic Specifications > <b><u><span style='font-weight:bold'>Capacity
Control</span></u></b></span></font></li>
</ol>
<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'> </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'>Thanks again!</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
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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@01CBBD8E.D6E070F0"></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'>
Bishop, Bill [mailto:wbishop@pathfinder-ea.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 26 January 2011 18:10<br>
<b><span style='font-weight:bold'>To:</span></b> Omar Katanani;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Equest-users] eQUEST
- serious 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'>Hello Omar,</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'>I assume you are doing a
LEED model using ASHRAE 90.1-2007, Appendix G. (2004 is not much different.) My
comments below apply to modeling the baseline.</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>
<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'>Correct, CHW pumps
attached to chillers should be constant flow. Appendix G does not specify
if condenser water pumps should be variable or not. I would argue for
constant flow since G3.1.3.11 specifies two-speed fans for tower capacity
control.</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'>Correct, two pumps
per chiller and none for the primary CHW loop. However, you need to create
a secondary CHW loop and pump and control it per G3.1.3.10.</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'>Correct, use a
single HW pump on the HW loop and none for the boiler(s).</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'>Correct, subtype for
a primary CHW loop should be “primary”. The secondary CHW loop
that you need to create will be “secondary”. For the baseline,
“secondary” sizing is correct, since you are not specifying
chiller capacity manually.</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;background:yellow'>CHW
valves at the system/zone coils should be 2-way if the secondary CHW loop
pump is variable speed, and 3-way if the pump rides the curve. G3.1.3.10
tells you which way to model the secondary CHW pump.</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>
<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'>
Omar Katanani [mailto:omar@ecoconsulting.net] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, January 25, 2011
4:12 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Bishop, Bill;
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 lang=EN-US
style='font-size:12.0pt'> </span></font></p>
<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</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </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</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </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</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </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</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </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: </span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><font color=navy><span
style='color:navy'><a href="mailto:omar@ecoconsulting.net">omar@ecoconsulting.net</a></span></font></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 lang=EN-US
style='font-size:7.5pt;font-family:Arial;color:navy'>EcoConsulting (Lebanon)</span></font></p>
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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@01CBBD8E.D6E070F0"></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>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'> 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='z-index:-1'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><img border=0 width=60 height=58
src="cid:image002.jpg@01CBBD8E.D6E070F0"></span></font></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>
<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>
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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>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
style='font-size:12.0pt'> </span></font></p>
<div>
<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>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
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>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
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>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
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 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>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
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'>Heinrich</span></font></p>
</div>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
style='font-size:12.0pt'> </span></font></p>
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