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<p class=MsoNormal><span style='color:#1F497D'>Anusha,<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'>Are you having this problem with
the Packaged multizone or the packaged VAV? If you are having the problem
with the packaged multi-zone that is b/c you have a dual duct system and while
you are cooling off the SAT, you are also lowering the heating temp (which then
has to be heated). This is expected for Packaged multizone (or dual duct
systems where each zone air is mixed). <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'>In regards to economizer setting
you should try and see the cooling savings you get when the economizer is set
to 70F and even up to 73F. The air is likely not too humid when the OSA
temp is this mild. This will reduce your cooling because it reduces the
delta T seen at the coil. You will want the compressor to be able to run
when the economizer is on b/c you may be bringing in 70F air (which is better than
76F return air temp) and this temp will need to be reduced to 55F (or whatever
your setpoint).<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'>Make sure you have cooling deck
supply reset, so you can reduce the heating when most of your building will
need heating.<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'>Amber<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>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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"'> Sabesan, Anusha
[mailto:asabesan@noresco.com] <br>
<b>Sent:</b> Wednesday, August 11, 2010 4:58 PM<br>
<b>To:</b> Fleming, Joe; equest-users@lists.onebuilding.org<br>
<b>Cc:</b> Amber Welsh<br>
<b>Subject:</b> RE: Air Side Economizer savings<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Joe,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>So this worked for a multi zone
building that I had. Thanks <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I tried the same one for another
building which has packaged Multizone, Packaged VAV systems.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>In addition to AIR Side
economizer savings I am also going Night setback, Fixing VAV’s ,SA temp
reset and finally the air side economizer savings.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>This is my Grid view. I really
appreciate your help. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Amber,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I am getting negative heat
savings. I am looking for a very conservative number and that is why I chose 65
and 45. Thanks<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'><img width=927 height=609
id="Picture_x0020_3" src="cid:image001.jpg@01CB3A04.5019CF20"><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>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Anusha Sabesan</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:"Arial","sans-serif";
color:#1F497D'>NORESCO</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:"Arial","sans-serif";
color:#1F497D'>(m) (781)534-8296</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(o) (508)614-1078</span><span style='color:#1F497D'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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"'> Fleming, Joe
[mailto:joe.fleming@tlc-eng.com] <br>
<b>Sent:</b> Wednesday, August 11, 2010 4:19 PM<br>
<b>To:</b> Sabesan, Anusha; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: Air Side Economizer savings<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Ok. Add Econo-Lockout and
set it to yes. Then, when you are in the Parametric Run Definitions
dialogue box, click on grid view and compare to the Baseline items. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>For an accurate savings
comparison, check to make sure Baseline has "NO" compressor lockout
and your run says "YES". Also check to make sure the baseline
OA control is set to "FIXED". (And you can compare other inputs
to make sure you are comparing the two systems the way you want). <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Can you email the grid view?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='color:#1F497D'>Joe Fleming<o:p></o:p></span></b></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>E.I., LEED
AP BD+C, BEMP<o:p></o:p></span></i></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>Mechanical
Engineer I<o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='color:#006363'>TLC Engineering for
Architecture<br>
</span></b><b><span style='font-size:10.0pt;color:#006363'>Your 2030 Challenge
Partner</span><span style='color:#006363'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>800 Fairway
Drive, Suite 250<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>Deerfield
Beach, FL 33441-1816<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
</div>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>phone: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9096<o:p></o:p></span></p>
</td>
</tr>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>fax: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9296<o:p></o:p></span></p>
</td>
</tr>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>direct: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-4591<o:p></o:p></span></p>
</td>
</tr>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>website: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><a
href="http://www.tlc-engineers.com">www.tlc-engineers.com</a><o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><a href="http://www.tlc-engineers.com/"><span
style='text-decoration:none'><img border=0 width=700 height=49 id="_x0000_i1025"
src="cid:image002.gif@01CB3A04.5019CF20"
alt="http://www.tlc-engineers.com/images/TLC_Sig_Loc_Block.gif"></span></a><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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"'> Sabesan, Anusha [mailto:asabesan@noresco.com]
<br>
<b>Sent:</b> Wednesday, August 11, 2010 3:56 PM<br>
<b>To:</b> Fleming, Joe; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: Air Side Economizer savings<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Outdoor Air Vent
&Economizer
- OA Control
- OA temperature <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>This is the parameter I changed.
And then I also inputted DBT High Limit (65F) and DBT low limit (45F).<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'>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Anusha<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>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Anusha Sabesan</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:"Arial","sans-serif";
color:#1F497D'>NORESCO</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:"Arial","sans-serif";
color:#1F497D'>(m) (781)534-8296</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(o) (508)614-1078</span><span style='color:#1F497D'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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"'> Fleming, Joe
[mailto:joe.fleming@tlc-eng.com] <br>
<b>Sent:</b> Wednesday, August 11, 2010 3:48 PM<br>
<b>To:</b> Sabesan, Anusha; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: Air Side Economizer savings<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Which keywords did you adjust in
your parametric component?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='color:#1F497D'>Joe Fleming<o:p></o:p></span></b></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>E.I., LEED
AP BD+C, BEMP<o:p></o:p></span></i></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>Mechanical
Engineer I<o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='color:#006363'>TLC Engineering for
Architecture<br>
</span></b><b><span style='font-size:10.0pt;color:#006363'>Your 2030 Challenge
Partner</span><span style='color:#006363'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>800 Fairway
Drive, Suite 250<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>Deerfield
Beach, FL 33441-1816<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
</div>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>phone: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9096<o:p></o:p></span></p>
</td>
</tr>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>fax: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9296<o:p></o:p></span></p>
</td>
</tr>
<tr>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><span
style='font-size:9.0pt;color:#333333'>direct: </span><span
style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-4591<o:p></o:p></span></p>
</td>
</tr>
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<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><a href="http://www.tlc-engineers.com/"><span
style='text-decoration:none'><img border=0 width=700 height=49 id="_x0000_i1026"
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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>Sabesan,
Anusha<br>
<b>Sent:</b> Wednesday, August 11, 2010 3:36 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Air Side Economizer savings<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have been trying to model an existing building for which
one of the parametric run being Air Side economizer savings. Every time (for
different buildings) I do this run I come across negative savings. The
building is located in New York. The system is a multi zone system. I hear that
many people have across this situation. My cooling savings is also minimal. Am
I doing something wrong?<o:p></o:p></p>
<p class=MsoNormal>Please advice.<o:p></o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal>Anusha<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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