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<p class=MsoNormal><span style='color:#1F497D'>Josh,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><br>
You need to create a “Minimum Air Schedule” for the outside air
damper. The schedule type needs to be “Frac/Design” and it
should have values of “0” when you want the outside air damper
closed, and “-999” when you want to return to normal operation and
use the calculated OSA value. You assign it under the “Outside Air
and Economizer” tab you have shown below. You can check this by
setting up an hourly report for the HVAC system and trending the OSA fraction.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Jay Keazer, EI</span></i></b><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Energy Engineer</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>TME, Inc.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>2039 N Green Acres Road</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif";
color:#1F497D'>Fayetteville, AR 72703</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:#1F497D'>ph 479.521.8634</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:#1F497D'>fax 479.521.1014<o:p></o:p></span></p>
<p class=MsoNormal><u><span style='font-size:7.5pt;font-family:"Times New Roman","serif";
color:blue'><a href="mailto:email@tmecorp.com">jkeazer@tmecorp.com</a></span></u><u><span
style='color:#1F497D'><o:p></o:p></span></u></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>
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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>Josh
Greenfield<br>
<b>Sent:</b> Thursday, December 18, 2008 5:51 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Spam:[Equest-users] Night-Cycle-Ctrl Outside Air??<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a proposed 100,000 square foot school in Chicago that
I’m modeling with eQuest, when I have no ‘Night Cycle Fan
Control’ on the main VAV air-handling systems (NIGHT-CYCLE-CTRL = Stay
Off), my annual energy expense for the building is around $62,000. When I
turn ‘Night Cycle Fan Control’ on (NIGHT-CYCLE-CTRL = Cycle on
Any), the annual value goes up to $96,000 (mostly natural gas consumption, with
some electric consumption due to fan power). I’m convinced that
during the Night Cycle Fan Control that the VAV systems are bringing in Outside
Air, which is making the energy go way up. Which report will show me if I
am guessing right about the outside air? And, how can I change the
‘Night Cycle Fan Control’ outside air availability to NOT include
at night?? So that at night, the OA dampers are shut and it’s just
doing a re-circ/reheat scenario…<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><img border=0 width=533
height=399 id="Picture_x0020_3" src="cid:image001.jpg@01C964FF.772D5EF0"><o:p></o:p></p>
<p class=MsoNormal><img border=0 width=532 height=398 id="Picture_x0020_1"
src="cid:image002.jpg@01C964FF.772D5EF0"><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img border=0 width=532 height=398 id="Picture_x0020_2"
src="cid:image003.jpg@01C964FF.772D5EF0"><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Josh <ns0:place><ns0:City>Greenfield</ns0:City>,
<span style='font-size:7.5pt'><ns0:State>PE</ns0:State></ns0:place></span></span><span
style='font-size:7.5pt;font-family:"Arial","sans-serif"'>, LEED AP</span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Senior Associate<br>
Primera Engineers, Ltd.<br>
<ns0:Street><ns0:address>100 S. Wacker Drive, Suite 700</ns0:address></ns0:Street><br>
<ns0:place><ns0:City>Chicago</ns0:City>, <ns0:State>IL</ns0:State> <ns0:PostalCode>60606</ns0:PostalCode></ns0:place><br>
312.606.0910 <ns0:place>Main</ns0:place><br>
312.242.6392 Direct<br>
312.606.0415 Fax<br>
</span><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'><a
href="blocked::mailto:jgreenfield@primerachicago.com"
title="blocked::mailto:jgreenfield@primerachicago.com"><span style='font-family:
"Arial","sans-serif"'>jgreenfield@primerachicago.com</span></a><br>
<a href="http://www.primerachicago.com"
title="blocked::http://www.primerachicago.com/"><span style='font-family:"Arial","sans-serif"'>http://www.primerachicago.com</span></a></span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:green'>Be Green...please consider the environment before printing this
email.</span><o:p></o:p></p>
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