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<title>eQuest 3.6 and lighting occupancy sensors</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bill,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The 10% decrease is an adjustment shown in ASHRAE 90.1 Table
G3.2. For compliance modeling, it is what it is, but for a more accurate (albeit
exceptional calc) model that can often show greater energy savings, you should
use the occupancy schedule for the lighting in zones that contain multiple rooms.
For example, if I have a large complex building where I need to do something
like clump 6 offices and 2 document rooms into 1 zone, I may set the occupancy
at 0.8 for most of the day if the document rooms are intermittently occupied by
people leaving their offices to go into the document rooms. In such a case, the
lighting should also be at 0.8 to account for the lights being off most of the
time in the doc room and part time in the offices. This could change a little
if the sensor controls are designed with a long delay.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For a zone that contains one large room, like an open office
area, you should keep it at 1.0 unless everyone leaves at the same time for
lunch or something. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This schedule-dependent technique is now allowed under LEED-NC
2.2.<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#135351'>Christopher
Wark</span></b><b><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";
color:#135351'><br>
</span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";
color:#B2550C'>Project Engineer<br>
</span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:#B2550C'>___________________________<br>
</span><span style='font-size:10.5pt;font-family:"Arial Black","sans-serif";
color:#135351'>RUMSEY</span><span style='font-size:13.5pt;font-family:"Arial Black","sans-serif";
color:#135351'> <br>
</span><span style='font-size:6.0pt;font-family:"Tahoma","sans-serif";
color:#B2550C'>E N G I N E E R S<br>
</span><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";
color:#B2550C'>Energy Efficient Design <br>
99 Linden Street<br>
Oakland CA 94607<br>
510 663 2070 x 239<br>
fax 510 663 2080<br>
<a href="mailto:eswalley@rumseyengineers.com">cwark@rumseyengineers.com</a> <br>
</span><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#B2550C'><a href="http://www.rumseyengineers.com/"><span
style='font-size:7.0pt;font-family:"Verdana","sans-serif"'>www.rumseyengineers.com</span></a></span></u><span
style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#B2550C'><br>
___________________________</span><span style='font-size:13.5pt;font-family:
"Arial Black","sans-serif";color:#135351'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Bill
Murray<br>
<b>Sent:</b> Monday, March 16, 2009 7:53 AM<br>
<b>To:</b> Howe, Timothy; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] eQuest 3.6 and lighting occupancy sensors<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#0070C0'>Tim,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'>Thanks, I figured it was
something like that.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#0070C0'>The groundhog bit me a couple
times in Groundhog Day…..<o:p></o:p></span></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#0070C0'>Regards,<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#0070C0'>Bill<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"'> Howe, Timothy
[mailto:Timothy.Howe@stantec.com] <br>
<b>Sent:</b> Monday, March 16, 2009 10:51 AM<br>
<b>To:</b> Bill Murray; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: [Equest-users] eQuest 3.6 and lighting occupancy sensors<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Either modify the schedule by 10% or the input watts (or watts/sf)
by 10%.</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Before:</span><o:p></o:p></p>
<p class=MsoNormal><img border=0 width=731 height=540 id="_x0000_i1025"
src="cid:image001.jpg@01C9A615.BB08F420"><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>After:</span><o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><img border=0 width=728 height=539 id="_x0000_i1026"
src="cid:image002.jpg@01C9A615.BB08F420"></span><o:p></o:p></p>
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<div>
<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Also, you were great in Caddyshack.</span><o:p></o:p></p>
</div>
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<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Tim.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Timothy
Howe, MS, LEED® AP</span></b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'><br>
Mechanical Engineer<br>
Stantec<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>The
content of this email is the confidential property of Stantec and should not be
copied, modified, retransmitted, or used for any purpose except with Stantec's
written authorization. If you are not the intended recipient, please delete all
copies and notify us immediately.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:Webdings;
color:#008040'>ü</span> <span lang=EN-GB style='font-size:10.0pt;font-family:
"Arial Narrow","sans-serif";color:#008040'>Please consider the environment
before printing this email.</span><o:p></o:p></p>
</div>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><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>Bill
Murray<br>
<b>Sent:</b> Monday, March 16, 2009 10:45 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] eQuest 3.6 and lighting occupancy sensors</span><o:p></o:p></p>
<p>Does anyone have a method to model occupancy sensors for lighting controls
in eQuest?<o:p></o:p></p>
<p>Thank you,<o:p></o:p></p>
<p>Bill Murray, P.E., LEED AP<o:p></o:p></p>
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