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I haven't used eQUEST but the OA-FROM--SYSTEM is in DOE2.1e. You
need to create a dummy space and zone. Set the temperature to the
average make-up air supply. I don't know about eQUEST (DOE2.2) but
it is next to impossible to get the make-up air system to simulate a
variable flow to match what is happening in the systems it serves.
You might need to set a MIN-AIR-SCH and MIN-CFM-SCH to match what you
think is happening in the 16 VAV handlers. You might need to run
hourly reports to determine the amount of total OA required to match the
16 VAV systems.<br><br>
<br><br>
<blockquote type=cite class=cite cite><font face="arial" size=2>Greetings
All,<br>
</font> <br>
<font face="arial" size=2>I am working on a project where I have a
make-up ventilation air system that serves 16 VAV air-handlers (one per
floor). The make-up air fan has a VFD to maintain constant pressure
in the duct as the OA Dampers at each floor modulate open and
closed. I am using DOE2.2 (eQUEST) and need help using the
OA-FROM-SYSTEM command. Specifically, I cannot resolve how to add a
system (make-up air fan) without a conditioned zone. Do I just
create a dummy zone that it serves or is there a better way.<br>
</font> <br>
<font face="arial" size=2>Could someone who has used this command before
and modeled a similar system please offer some advise.<br>
</font> <br>
<font face="arial" size=2>Thank you.<br>
</font> <br>
<font face="arial" size=2>Mike<br>
</font> <br>
<br>
<font face="Times New Roman, Times" size=2 color="#0000FF"><b>Michael
Tillou, PE<br>
etc Group, Inc.<br>
PO Box 749, North Adams, MA 01247<br>
Ph. (413) 458-9870 Mbl. (413) 652-1087
<a href="http://www.etcgrp.com">www.etcgrp.com</a><br>
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<br>
Chris Jones, P. Eng.<br>
14 Oneida Avenue<br>
Toronto, ON M5J 2E3<br>
Tel. 416 203-7465<br>
Fax. 416 946-1005<br><br>
<br><br>
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