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<p class=MsoNormal><span style='color:#1F497D'>I haven’t used EE4 recently, but
with eQUEST, you can model the system explicitly as a series fan powered VAV,
and input the fan power for the boxes directly. <o:p></o:p></span></p>
<p class=MsoNormal><span style='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";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Brian Tysoe<br>
<b>Sent:</b> Wednesday, November 17, 2010 2:05 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] EE4 - Packaged VAV with Fan Powered Boxes<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hi,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
am trying to model a packaged VAV rooftop unit with fan-powered boxes in the
perimeter zones. After hours the RTU fans are off and the fan-powered boxes
cycle to maintain the night setback temperature.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>How
can I correctly model the fan energy for this system in EE4?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>When
I select “Packaged VAV” as my system type there is no option to enter any fan
energy at the zone level.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>What
should I use for a fan schedule and what should I put under “Fan Operation” at
the system level?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Currently
I do not have the terminal fans entered anywhere, just the RTU fans. I am not
sure if I am over estimating the fan energy because the RTU fans are cycling to
maintain night setback; or if I am under estimating the fan energy because
there are no fans operating at night.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Also,
if I have an exhaust fan in my RTU in addition to the supply fan and return
fan, should I include it with my supply fan or with my return fan?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><strong><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>Brian Tysoe </span></strong><span style='font-size:8.0pt;
font-family:"Arial","sans-serif";color:#4D4D4D'>M.A.Sc., P.Eng., LEED AP </span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>Mechanical Engineer </span></i><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:#4D4D4D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a
href="http://www.mcw.com" title="Click here to visit www.mcw.com"><em><b><span
style='font-family:"Arial","sans-serif";color:green;text-decoration:none'>MCW
Consultants Ltd. </span></b></em></a><o:p></o:p></span></p>
<p class=MsoNormal><em><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>600-156 Front Street West </span></em><i><span style='font-size:
10.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'><br>
<em><span style='font-family:"Arial","sans-serif"'>Toronto, ON M5J 2L6 </span></em><br>
<em><span style='font-family:"Arial","sans-serif"'>Phone 416-598-2920 </span></em><br>
<em><span style='font-family:"Arial","sans-serif"'>Fax 416-598-5394 </span></em></span></i><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>This e-mail may be privileged and confidential. Any unauthorized
use is strictly prohibited. If you received this e-mail in error, please
contact the sender directly. </span></i><span style='font-size:8.0pt;
font-family:"Arial","sans-serif";color:#4D4D4D'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
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