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You can't directly model this system in EE4. The only solution is
to create your project in EE4 then edit the proposed .DOE file to add in
the series fan powered box statements at each zone. You then have
to run the file from the command line.<br><br>
At 05:04 PM 17/11/2010, Brian Tysoe wrote:<br>
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<font size=2>Hi,<br>
<br>
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.<br>
<br>
How can I correctly model the fan energy for this system in EE4?<br>
<br>
When I select “Packaged VAV” as my system type there is no option to
enter any fan energy at the zone level.<br>
<br>
What should I use for a fan schedule and what should I put under “Fan
Operation” at the system level?<br>
<br>
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.<br>
<br>
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?<br>
<br>
Thanks,<br>
<br>
<br>
</font><font size=2 color="#4D4D4D"><b>Brian Tysoe
</b></font><font size=1 color="#4D4D4D">M.A.Sc., P.Eng., LEED AP <br>
<i>Mechanical Engineer <br>
</i></font><font size=2> <br>
</font><font size=2 color="#008000"><b><i><a href="http://www.mcw.com">
MCW Consultants Ltd. </a><br>
</b></font><font size=2 color="#4D4D4D">600-156 Front Street West <br>
Toronto, ON M5J 2L6 <br>
Phone 416-598-2920 </i><br>
<i>Fax 416-598-5394 <br>
</i></font><font size=2> <br>
</font><font size=1 color="#4D4D4D"><i>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. <br>
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<br>
Chris Jones<br>
14 Oneida Avenue<br>
Toronto, ON M5J 2E3.<br>
Tel. 416-203-7465<br>
Fax. 416-946-1005<br><br>
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