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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">As a general practice I’d advise referencing the net peak listed for the baseline CHW loop in the PS-D report for determining plant peak cooling load, independent of chiller
distribution. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">One difference between the numbers is that where SS-D is simply the peak load seen at the HVAC coils, the PS-D figure incorporates heat of CHW pumping & distribution, which
is additionally handled at the primary equipment. I’m not sure if that explains the whole gap you’re seeing, but that’d be a part of it.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">~Nick<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#3A7A46"><o:p></o:p></span></p>
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</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Regional Energy Engineering Manager<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">D </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6361
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>siddharth patil via Equest-users<br>
<b>Sent:</b> Wednesday, August 30, 2017 4:42 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Building Peak Cooling Load<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello, <o:p></o:p></p>
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<p class="MsoNormal">Which report shows actual building peak cooling load? Is it the SS-D report? I am modeling ASHRAE 90.1 2007 system 8 - VAV w/PFP boxes and have chillers in baseline case. Shall I look at the SS-D report peak cooling load or PS-C equipment
peak cooling load? I am getting different values in both reports(SS-D = 529.22 tons and PS-C = 642 tons). <o:p></o:p></p>
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<p class="MsoNormal"><b><u><span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;color:#212121">Siddharth</span></u></b><span style="font-size:11.5pt;font-family:"Segoe UI",sans-serif;color:#212121"><o:p></o:p></span></p>
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