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<P CLASS="d96e6613-51d7-4441-baa8-121a4d238960">
<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>You can create a water
economizer in your plant. Create a new chiller of type “water
economizer”.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Jeremy<o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Myriad Web Pro";
color:gray'>___________________________________________</span></b><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:olive'> <o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:olive'>Jeremy McClanathan</span></b><span style='font-size:7.5pt;
font-family:"Verdana","sans-serif";color:gray'>, LEED<sup>®</sup> AP</span><span style='font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:olive'>CDi ENGINEERS</span></b><span style='font-family:"Verdana","sans-serif";
color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:gray'>4200 194th St SW, Ste 200, Lynnwood, WA 98036</span><span style='font-family:"Verdana","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:gray'>P 425-672-1071 | F 425-778-8769 </span><span style='font-family:
"Verdana","sans-serif";color:#1F497D'><o:p></o:p></span></p>
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color:#99CC00'>P</span><span lang=EN-GB style='font-family:Webdings;color:#99CC00'>
</span><i><span lang=EN-GB style='font-size:7.0pt;font-family:"Verdana","sans-serif";
color:#99CC00'>Please consider the environment before printing this email.</span></i><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Greg Collins
[mailto:GCollins@glumac.com] <br>
<b>Sent:</b> Wednesday, June 02, 2010 9:00 AM<br>
<b>To:</b> Charles Land<br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Waterside Economizer<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Charles,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I haven’t done this
myself, but have an idea that you might try.. Set up your chilled water
loops so that the chiller and heat exchangers are in parallel. Then, set
up equipment control with a schedule so that the chiller is disabled and the
heat exchanger enabled when the outside air conditions are suitable. You
may have to put the hourly ourside air dry bulb/ wet bulbs temps in Excel to
crunch and figure out the schedule.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Again, I haven’t had to do
this before so there may very well be a simpler approach to modeling a
waterside economizer, but I think this would work. Let me know how
you make out.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b>Greg Collins</b><br>
GLUMAC | (949) 833-8190<span style='color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b>From:</b> Charles Land [mailto:cland@geo-marine.com] <br>
<b>Sent:</b> Wednesday, June 02, 2010 8:26 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Waterside Economizer<o:p></o:p></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Does anyone know a way to do waterside economization other
than through the airside tabs. The building I’m currently modeling
has older multizone systems with a water to water heat exchanger for waterside
economization. Equest does not give the option for waterside
economization for multizone units. I thought there may be a way to create
a heat exchanger and accomplish this through a water side route but have so far
been unsuccessful.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</P>
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