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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bill, it sounds like you are applying the exception but I don’t
think it applies here since the lights in the dorm rooms are controlled on
fixed wall-switches, and not connected via receptacles. My understanding is
that the proposed design should be modeled with W/sf as shown on the plans
(however small it is) and the baseline be modeled with 1.0 W/sf as determined
by the Building Area Method. Note that if the Space-by-Space method were
used the allowable baseline W/sf for the dormitory living areas is 1.1 W/sf. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If the lighting design has LPD less than baseline and fixtures
are hard-wired, then credit should be taken.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:14.0pt;font-family:Cheltenham;
color:#A0002F'> </span><span style='font-size:18.0pt;font-family:Cheltenham;
color:#A0002F'>Dan Russell, EIT <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Cheltenham;
color:#A0002F'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Cheltenham;
color:#A0002F'><img width=200 height=174 id="Picture_x0020_1"
src="cid:image001.jpg@01C94B2C.6578F580"
alt="cid:image001.jpg@01C840A4.E711B250"></span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<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"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Bishop,
Bill<br>
<b>Sent:</b> Thursday, November 20, 2008 2:31 PM<br>
<b>To:</b> Howe, Timothy; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Dormitory LPD<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:navy'>Tim,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Table G3.1, No. 6(d) states: “Lighting system power shall
include all lighting system components shown or provided for on the plans
(including lamps and ballasts and task and furniture-mounted fixtures). <b>Exception:</b>
For multifamily living units, hotel/motel guest rooms, and other spaces in
which lighting systems are connected via receptacles and are not shown or
provided for on building plans, assume identical lighting power for the <i>proposed</i>
and <i>baseline designs</i> in the simulations, but exclude these loads when
calculating the <i>baseline building performance</i> and <i>proposed building
performance</i>.” [Emphasis in original.]<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The way I would implement this is to assign the same W/ft<sup>2</sup>
lighting to all dorm rooms on a different meter in both the baseline and
proposed designs. Then I would subtract the kWh of that meter from the building
performance. You could still show lighting savings if you do the space-by-space
method for both designs (assuming the lighting in your corridors and common
areas is efficient).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Bill<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";
color:black'>William Bishop</span></b><b><span style='font-size:10.0pt;
font-family:"Franklin Gothic Medium Cond";color:black'>, EIT, LEED<sup>®</sup>
AP</span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:#003300'> </span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:green'>|</span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:#003300'> </span></b><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Medium Cond";
color:black'>Pathfinder Engineers LLP<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:3.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>3300 Monroe Ave., Suite 306 <br>
Rochester, NY 14618<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>TEL (585) 218-0730 Ext. 114<br>
FAX (585) 218-0737 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>bbishop@pathfinderengineers.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:3.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>www.pathfinderengineers.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:18.0pt;font-family:Webdings;
color:green'>P</span><span style='color:green'> </span><span style='font-size:
7.5pt;color:green'>Please consider the environment before printing this email</span><span
style='color:green'><o:p></o:p></span></p>
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<hr size=2 width="100%" align=center>
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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"'>
bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Howe, Timothy<br>
<b>Sent:</b> Thursday, November 20, 2008 4:10 PM<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Dormitory LPD</span><o:p></o:p></p>
</div>
<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'>Sim-users,</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <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'>I have a dormitory with something like 3/4 dorms and the rest
support areas.</span><o:p></o:p></p>
</div>
<div>
<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'>My question is:</span><o:p></o:p></p>
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<p class=MsoNormal> <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'>ASHRAE 90.1-2004 calls for in the building wide approach for lpd to
be 1.0 w/sf for dorms.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <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'>Now if there are wall switched fixed lights called for on the
electrical lighting plans in the dorm rooms but have only a small
w/sf contribution, can I really do a building wide lpd calc and claim the
savings shown on the plans??</span><o:p></o:p></p>
</div>
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<p class=MsoNormal> <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'>Any suggestions??</span><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'>Thanks.</span><o:p></o:p></p>
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