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<title>Difficulty with Cooling Tower</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Kimberly,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You need to have at least one water cooled chiller attached to
the condenser water loop in addition to the water-side economizer to get rid of
that error message. Add a dummy water-cooled chiller and schedule it off
at all times (use Equipment Control and have the air-cooled chillers meet the
entire load – the fake water-cooled chiller will never turn on but the economizer
will operate whenever possible) and verify it is not running through the hourly
reports. The error should disappear and you’ll get free cooling
from the economizer. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"BankGothic Md BT","sans-serif";
color:#1F497D'>Matt Dubrovich, </span></b><span style='font-size:11.0pt;
font-family:"BankGothic Md BT","sans-serif";color:#1F497D'>P.E.<i><o:p></o:p></i></span></p>
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color:#1F497D'>LEED AP</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>EMC Engineers, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.emcengineers.com/"><span style='color:blue'>www.emcengineers.com</span></a></span><u><span
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(303) 974-1217 - direct<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(720) 279-4426 - mobile<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Kimberly
Killian<br>
<b>Sent:</b> Friday, October 23, 2009 10:20 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Difficulty with Cooling Tower<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>Good Afternoon all,<o:p></o:p></p>
</div>
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<p class=MsoNormal> <o:p></o:p></p>
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<div>
<p class=MsoNormal>I am trying to model a cooling tower but have not been able
to make it work. I am running the model in 3.63b. The model will run if I
attach the condenser loop directly to one of my chillers, but when I attach the
water economizer to the condenser loop, as instructed in the documentation, I
get an error message that their is no load on the condenser loop.<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Has anyone had any success getting this type of system to
work? The documentation is light on this topic. Any and all assistance would be
greatly appreciated.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Regards,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'>Kimberly Killian<br>
Northern Architects, Inc.<br>
207 King Street Suite 3<br>
Burlington VT 05401<br>
T: 802-658-1953<br>
F: 802-658-2975<o:p></o:p></p>
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