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<div class=Section1>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:blue'>I thought
this min. is for heating season. See below.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:blue'><o:p> </o:p></span></font></p>
<h5><b><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>MIN-OUTSIDE-AIR<o:p></o:p></span></font></b></h5>
<p class=MsoBodyText><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The minimum outside air flow divided by the supply air
flow during winter heating periods. You may alternatively, or additionally,
specify outside air quantities at the zone level using the ZONE keywords
OA-CHANGES, OA-FLOW/PER or OUTSIDE-AIR-FLOW. The default is calculated from
zone loads and ZONE input. <o:p></o:p></span></font></p>
<p class=MsoBodyText><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>If you enter MIN-OUTSIDE-AIR as well as the ZONE
keywords OUTSIDE-AIR-FLOW, OA-CHANGES, OA-FLOW/PER or EXHAUST-FLOW, the ZONE
values take precedence. If no zone-level values are specified, MIN-OUTSIDE-AIR
will be used. If MIN-AIR-SCH is specified, MIN-OUTSIDE-AIR, or the
corresponding ZONE values, should be entered. <o:p></o:p></span></font></p>
<p class=MsoBodyText><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The program will not allow MIN-OUTSIDE-AIR to be less
than the sum of the EXHAUST-FLOWs for all zones divided by the sum of all
supply flows for all zones. That is, the exhaust fan operation will override
MIN-OUTSIDE-AIR if MIN-OUTSIDE-AIR is set too low. <o:p></o:p></span></font></p>
<p class=MsoBodyText><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The minimum outside air ratio reported on SV-A is
based on the design calculated supply air flow and not on the value input for
SUPPLY-FLOW, which overrides the design flow rate. <o:p></o:p></span></font></p>
<p class=MsoBodyText><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>When evaporative cooling is in effect, the outside air
dampers are 100% open. When outside air is able to cool the building without
the aid of evaporative cooling, the outside and return air dampers modulate
open.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:blue'>Lan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:blue'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>
<hr size=3 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Tomlinson, Scott
[mailto:stomlinson@smma.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, February 23, 2010
4:11 PM<br>
<b><span style='font-weight:bold'>To:</span></b> equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Equest-users] eQuest
Users Group - Setting outside air minimum</span></font><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Hello
folks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Hopefully
someone knows how to deal with outside air. I can’t seem to figure
out how to set my minimum outside air on my HVAC systems. When I set my
OA minimum on my Air system , and adjust the minimum OA fraction in my schedule
I still get ventilation results below my set minimum. It seems, no matter
what I do to the outside air setting on the system side the program sizes the
OA ventilation based solely on what my outside air ventilation rates of the
individual spaces and ignores any setting I put in my system. Does anyone
have experience on how to remedy this?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><img
width=746 height=560 id="_x0000_i1028" src="cid:image005.jpg@01CAB4A3.AF7C5370"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><img
width=739 height=555 id="Picture_x005f_x0020_2"
src="cid:image006.jpg@01CAB4A3.AF7C5370"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><img
width=1079 height=547 id="Picture_x005f_x0020_3"
src="cid:image007.jpg@01CAB4A3.AF7C5370"><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=msolistparagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 face=Calibri><span style='font-size:11.0pt'><span style='mso-list:Ignore'>-<font
size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Thank you,<o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<table class=MsoNormalTable border=0 cellspacing=3 cellpadding=0>
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<p class=MsoNormal><font size=2 color=silver face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:silver'>__________________________________________<o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td colspan=3 style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black;font-weight:bold'>Scott Tomlinson,
PE, LEED-AP</span></font></b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'><o:p></o:p></span></font></p>
</td>
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<td colspan=3 style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'>Mechanical<o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td colspan=3 style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 color="#004040" face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:#004040;font-weight:bold'>Symmes
Maini & McKee Associates, Inc.</span></font></b><font size=2
color="#004040" face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:#004040'><o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td colspan=3 style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><font size=2
color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:black'>1000 Massachusetts Avenue</span></font></st1:Street><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:
Tahoma;color:black'>, <st1:City w:st="on">Cambridge</st1:City>, <st1:State
w:st="on">MA</st1:State> <st1:PostalCode w:st="on">02138</st1:PostalCode></span></font></st1:address><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:
Tahoma;color:black'><o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td width=219 nowrap style='width:131.25pt;padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'>t: 617.520.9438<o:p></o:p></span></font></p>
</td>
<td width=125 nowrap rowspan=4 style='width:75.0pt;padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'><img width=63
height=64 id="Picture_x005f_x0020_1" src="cid:image008.jpg@01CAB4A3.AF7C5370"
alt="http://intranet/Images/USGBC.jpg"><o:p></o:p></span></font></p>
</td>
<td width=250 nowrap rowspan=4 style='width:150.0pt;padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'> <o:p></o:p></span></font></p>
</td>
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<tr>
<td style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'>f: 617.354.5758<o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'><a
href="mailto:STomlinson@smma.com">stomlinson@smma.com</a><o:p></o:p></span></font></p>
</td>
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<tr>
<td style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:black'><a
href="http://www.smma.com/">www.smma.com</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
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