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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Scott,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The baseline model ventilation will be
constant during occupied hours and equal to peak occupancy x <span
class=SpellE>cfm</span>/person when using “Fraction of Design Flow”
as the OA control method. The proposed model hourly ventilation rate will vary and
will be equal to peak occupancy x <span class=SpellE>cfm</span>/person x hourly
occupancy schedule fraction.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Bill<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><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=2 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'> Scott Janssen
[mailto:sjanssen@eypae.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 11, 2010
10:03 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Bishop,
 Bill</st1:PersonName><br>
<b><span style='font-weight:bold'>Cc:</span></b>
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Equest-users] Demand
Control Ventilation - LEED Model</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 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>Bill,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>Thanks for the response.  I’m
a bit confused as to how that would reduce ventilation in the proposed case
though if everything is the same between the two models (same fractions in occ
schedules, same space peak occ, same zone level OA cfm/person).  Am I
missing something?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>Thanks, <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><b><font size=1 color="#f79646" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#F79646;font-weight:bold'>Scott
Janssen</span></font></b><font size=1 color="#f79646" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#F79646'> </span></font><font
size=1 color="#7f7f7f" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#7F7F7F'>EMIT, LEED® AP </span></font><font size=1
color="#7f7f7f" face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:#7F7F7F'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>Energy Analyst<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#7F7F7F'><o:p> </o:p></span></font></p>

<p class=MsoNormal><b><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F;font-weight:bold'>EYP
Energy <o:p></o:p></span></font></b></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>NanoFab East, <st1:address
w:st="on"><st1:Street w:st="on">Suite</st1:Street> 1400</st1:address> </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <st1:Street w:st="on"><st1:address
 w:st="on">257 Fuller Road</st1:address></st1:Street> </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <st1:place w:st="on"><st1:City
 w:st="on">Albany</st1:City>, <st1:State w:st="on">NY</st1:State> <st1:PostalCode
 w:st="on">12203</st1:PostalCode></st1:place><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>T (518) 438 - 1497 </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> C (518) 421 - 1267 </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <a
href="http://www.eypae.com"><font color="#7f7f7f"><span style='color:#7F7F7F'>eypae.com</span></font></a><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#f79646" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#F79646'>/</span></font><font
size=1 color="#7f7f7f" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#7F7F7F'> 2009 Best Firm to Work For<o:p></o:p></span></font></p>

</div>

<p class=MsoNormal><font size=3 color="#7f7f7f" face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman";color:#7F7F7F'> </span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>

<div>

<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>

<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'> <st1:PersonName
w:st="on">Bishop, Bill</st1:PersonName> [mailto:wbishop@pathfinder-ea.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 11, 2010
9:15 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Scott Janssen<br>
<b><span style='font-weight:bold'>Cc:</span></b> equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Equest-users] Demand
Control Ventilation - LEED Model<o:p></o:p></span></font></p>

</div>

</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 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Scott,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Check the equest-users archives since this
has been discussed many times. You are on the right track.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You have to use the same occupancy
schedule(s) for your proposed and baseline models. Enter the peak occupancy for
your space and then create/adjust your occupancy schedule so that it fluctuates
somewhere between 0 and 100% during occupied hours, according to how the space
is actually used. If you set your zone-level OA with the same cfm/person value
in both the proposed and baseline, the proposed will decrease the ventilation
during occupied hours based on the fraction of occupancy in the schedule. Make
sure you are not “gaming the system” – your peak occupancy and
cfm/person values that you use should be consistent with the actual mechanical
design peak ventilation rate.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Bill<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<div>

<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><b><font size=2
  color=black face="Franklin Gothic Medium Cond"><span style='font-size:10.0pt;
  font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>William</span></font></b></st1:City><b><font
 size=2 color=black face="Franklin Gothic Medium Cond"><span style='font-size:
 10.0pt;font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>
 <st1:State w:st="on">Bishop</st1:State>, <st1:State w:st="on">PE</st1:State></span></font></b></st1:place><b><font
size=2 color=black face="Franklin Gothic Medium Cond"><span style='font-size:
10.0pt;font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>,
BEMP, LEED<sup>®</sup> AP </span></font></b><b><font size=2 color="#006600"
face="Franklin Gothic Medium Cond"><span style='font-size:10.0pt;font-family:
"Franklin Gothic Medium Cond";color:#006600;font-weight:bold'>|</span></font></b><b><font
size=2 color=black face="Franklin Gothic Medium Cond"><span style='font-size:
10.0pt;font-family:"Franklin Gothic Medium Cond";color:black;font-weight:bold'>
Pathfinder Engineers & Architects LLP<o:p></o:p></span></font></b></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:black'>Mechanical Engineer<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span style='font-size:
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<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=1
  color=navy face=Arial><span style='font-size:9.0pt;font-family:Arial;
  color:navy'>134 South Fitzhugh Street</span></font></st1:address></st1:Street><font
size=1 color=navy><span style='font-size:9.0pt;color:navy'><br>
</span></font><st1:place w:st="on"><st1:City w:st="on"><font size=1 color=navy
  face=Arial><span style='font-size:9.0pt;font-family:Arial;color:navy'>Rochester</span></font></st1:City><font
 size=1 color=navy face=Arial><span style='font-size:9.0pt;font-family:Arial;
 color:navy'>, <st1:State w:st="on">NY</st1:State> <st1:PostalCode w:st="on">14608</st1:PostalCode></span></font></st1:place><font
size=1 color=navy><span style='font-size:9.0pt;color:navy'><br>
</span></font><font size=1 color=navy face=Arial><span style='font-size:9.0pt;
font-family:Arial;color:navy'>T: (585) 325-6004 </span></font><font size=1
color=black face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:black'>Ext. 114</span></font><font size=1 color=navy><span
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</span></font><font size=1 color=navy face=Arial><span style='font-size:9.0pt;
font-family:Arial;color:navy'>F: (585) 325-6005</span></font><font size=1
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color:black'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color=black face=Arial><span style='font-size:
9.0pt;font-family:Arial;color:black'>wbishop@pathfinder-ea.com<o:p></o:p></span></font></p>

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style='font-size:7.5pt;color:green'>Sustainability – less is more.</span></font><font
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<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'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Scott Janssen<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 11, 2010
9:00 AM<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] Demand
Control Ventilation - LEED Model</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>

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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>

<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>My
question is in regards to setting up the design case model to reflect demand
control ventilation.  So far, I’ve set the min OA schedules for the
zones to 0 during unoccupied hours to limit OA and set the HVAC system min OA
method to DCV return, and this has shown some savings.  The occupied hours
for some of the spaces are roughly 12 hrs/day, but the spaces will be occupied
roughly 1/3 of the time during those hours.  As this project is going for
LEED, is it acceptable to adjust the occupancy schedules in any way to account
for the effectiveness of the DCV system when these spaces are
“unoccupied” during occupied hours, or does anyone have any
suggestions for other changes I can make to the design case model?  This
is really an ideal scenario for DCV as the occupied schedule for the building
is long (at least 12 hrs per day), but the actual occupancy of the building
will be sporadic and I’m concerned that the model isn’t reflecting
the full-effectiveness of the DCV system.<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'>Thanks
in advance, <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><b><font size=1 color="#f79646" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#F79646;font-weight:bold'>Scott
Janssen</span></font></b><font size=1 color="#f79646" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#F79646'> </span></font><font
size=1 color="#7f7f7f" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#7F7F7F'>EMIT, LEED® AP </span></font><font size=1
color="#7f7f7f" face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:#7F7F7F'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>Energy Analyst<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#7F7F7F'><o:p> </o:p></span></font></p>

<p class=MsoNormal><b><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F;font-weight:bold'>EYP
Energy <o:p></o:p></span></font></b></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>NanoFab East, <st1:address
w:st="on"><st1:Street w:st="on">Suite</st1:Street> 1400</st1:address> </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <st1:Street w:st="on"><st1:address
 w:st="on">257 Fuller Road</st1:address></st1:Street> </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <st1:place w:st="on"><st1:City
 w:st="on">Albany</st1:City>, <st1:State w:st="on">NY</st1:State> <st1:PostalCode
 w:st="on">12203</st1:PostalCode></st1:place><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'>T (518) 438 - 1497 </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> C (518) 421 - 1267 </span></font><font
size=1 color="#f79646" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#F79646'>/</span></font><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'> <a
href="http://www.eypae.com"><font color="#7f7f7f"><span style='color:#7F7F7F'>eypae.com</span></font></a><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#7f7f7f" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#7F7F7F'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=1 color="#f79646" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#F79646'>/</span></font><font
size=1 color="#7f7f7f" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#7F7F7F'> 2009 Best Firm to Work For<o:p></o:p></span></font></p>

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