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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black">You may want to run through this document before you get too much further. Skip ahead to “Part 2” of the document.</span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><a href="http://www.energydesignresources.com/media/2654/EDR_DesignGuidelines_%20HVAC_Simulation.pdf">http://www.energydesignresources.com/media/2654/EDR_DesignGuidelines_%20HVAC_Simulation.pdf</a><font color="black"><span style="color:black"></span></font></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black">In a nutshell – you should acquire a few more data points to develop a more comprehensive matrix. Right now your matrix would be equivalent to a line through the middle of possible conditions, you need to extend your data set over a wider range of water temperatures and load conditions.</span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black">David</span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></p><div><p class="MsoNormal"><u><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></u></p>
<p class="MsoNormal"><font size="1" color="black" face="Calibri"><span style="font-size:8.0pt;color:black"> </span></font></p><p class="MsoNormal"><b><font size="2" color="#1f497d" face="Calibri"><span style="font-size:11.0pt;color:#1F497D;font-weight:bold">David S. Eldridge, Jr.</span></font></b><b><font color="#244061"><span style="color:#244061;font-weight:bold">, P</span></font></b><b><font color="#1f497d"><span style="color:#1F497D;font-weight:bold">.</span></font></b><b><font color="#244061"><span style="color:#244061;font-weight:bold">E</span></font></b><b><font color="#1f497d"><span style="color:#1F497D;font-weight:bold">.</span></font></b><b><font color="#244061"><span style="color:#244061;font-weight:bold">, LEED AP BD+C, BEMP, HBDP</span></font></b></p>
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<p class="MsoNormal"><font size="1" color="#1f497d" face="Calibri"><span style="font-size:4.0pt;color:#1F497D"> </span></font></p><p class="MsoNormal"><font size="2" color="#365f91" face="Calibri"><span style="font-size:11.0pt;color:#365F91">Direct: (847) 316-92</span></font><font color="#1f497d"><span style="color:#1F497D">24</span></font><font color="#365f91"><span style="color:#365F91"> | Fax: (</span></font><font color="#1f497d"><span style="color:#1F497D">847</span></font><font color="#365f91"><span style="color:#365F91">) </span></font><font color="#1f497d"><span style="color:#1F497D">328</span></font><font color="#365f91"><span style="color:#365F91">-</span></font><font color="#1f497d"><span style="color:#1F497D">4550</span></font><font color="#365f91"><span style="color:#365F91"></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"><a href="http://www.grummanbutkus.com">http://www.grummanbutkus.com</a></span></font><font color="#1f497d"><span style="color:#1F497D"></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"> </span></font></p><p class="MsoNormal"><b><font size="2" color="#244061" face="Calibri"><span style="font-size:11.0pt;color:#244061;font-weight:bold">Grumman/Butkus Associates</span></font></b><font color="gray"><span style="color:gray"> </span></font><font color="#365f91"><span style="color:#365F91">| 820 Davis Street, Suite 300 | Evanston, IL 60201</span></font><font size="3" color="black"><span style="font-size:12.0pt;color:black"></span></font></p>
<p class="MsoNormal"><font size="1" color="gray" face="Calibri"><span style="font-size:9.0pt;color:gray">Energy Efficiency Consultants and Sustainable Design Engineers</span></font></p><p class="MsoNormal"><u><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"> </span></font></u></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>] <b><span style="font-weight:bold">On Behalf Of </span></b>Afaan Naqvi<br>
<b><span style="font-weight:bold">Sent:</span></b> Tuesday, January 18, 2011 8:33 PM<br><b><span style="font-weight:bold">To:</span></b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b><span style="font-weight:bold">Subject:</span></b> [Equest-users] Constructing chiller part load curves</span></font></p></div></div><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">After browsing the forums, it seems there are many users that have constructed custom chiller curves based on selection data. I believe I have all the data I need to do this, but am coming up with polynomial coefficients and hourly results that do not make sense at all. Can someone please walk me through how to go about building the 3 curves for a centrifugal, water cooled chiller with a VSD based on the following data:</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="647" style="width:485.0pt;margin-left:-.55pt;border-collapse:collapse">
<tr height="18" style="height:13.2pt"><td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">% Load</span></font></p></td><td width="91" nowrap height="18" style="width:68.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Capacity</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">kW in</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Perf</span></font></p></td><td width="87" nowrap height="18" style="width:65.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Evap T in</span></font></p></td><td width="96" nowrap height="18" style="width:1.0in;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Evap T out</span></font></p></td><td width="93" nowrap height="18" style="width:69.75pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Conden T in</span></font></p></td><td width="88" nowrap height="18" style="width:66.25pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Coned T out</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">100</span></font></p>
</td><td width="91" nowrap height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">85</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">53.6</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.63</span></font></p></td><td width="87" nowrap height="18" style="width:65.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">54</span></font></p></td><td width="96" nowrap height="18" style="width:1.0in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">44</span></font></p></td><td width="93" nowrap height="18" style="width:69.75pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">85</span></font></p></td><td width="88" nowrap height="18" style="width:66.25pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">94.8</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">75</span></font></p>
</td><td width="91" nowrap height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">63.8</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">29.8</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.47</span></font></p></td><td width="87" nowrap height="18" style="width:65.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">51.5</span></font></p></td><td width="96" nowrap height="18" style="width:1.0in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">44</span></font></p></td><td width="93" nowrap height="18" style="width:69.75pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">75</span></font></p></td><td width="88" nowrap height="18" style="width:66.25pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">82</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">50</span></font></p>
</td><td width="91" nowrap height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">42.5</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">13.3</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.31</span></font></p></td><td width="87" nowrap height="18" style="width:65.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">49</span></font></p></td><td width="96" nowrap height="18" style="width:1.0in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">44</span></font></p></td><td width="93" nowrap height="18" style="width:69.75pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">65</span></font></p></td><td width="88" nowrap height="18" style="width:66.25pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">69.5</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" nowrap height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">25</span></font></p>
</td><td width="91" nowrap height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">21.3</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">6.9</span></font></p></td><td width="64" nowrap height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.32</span></font></p></td><td width="87" nowrap height="18" style="width:65.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">46.5</span></font></p></td><td width="96" nowrap height="18" style="width:1.0in;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">44</span></font></p></td><td width="93" nowrap height="18" style="width:69.75pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">65</span></font></p></td><td width="88" nowrap height="18" style="width:66.25pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">67.2</span></font></p></td></tr></table><p class="MsoNormal">
<font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">I believe the additional data I need is calculated below, except for the dT term which I am unclear on:</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="283" style="width:212.0pt;margin-left:-.55pt;border-collapse:collapse">
<tr height="18" style="height:13.2pt"><td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Load</span></font></p>
</td><td width="91" height="18" style="width:68.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">PLR</span></font></p>
</td><td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">kW</span></font></p>
</td><td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">f PLR</span></font></p>
</td></tr><tr height="18" style="height:13.2pt"><td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">85</span></font></p></td><td width="91" height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">1</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">53.6</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">1</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">63.8</span></font></p>
</td><td width="91" height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.751</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">29.8</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.556</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">42.5</span></font></p>
</td><td width="91" height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.500</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">13.3</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.248</span></font></p></td></tr><tr height="18" style="height:13.2pt">
<td width="64" height="18" style="width:48.0pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">21.3</span></font></p>
</td><td width="91" height="18" style="width:68.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt"><p class="MsoNormal" align="center" style="text-align:center">
<font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.251</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">6.9</span></font></p></td><td width="64" height="18" style="width:48.0pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:13.2pt">
<p class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">0.129</span></font></p></td></tr></table><p class="MsoNormal">
<font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">Not sure if the dT term required by the curves is the difference in condenser supply and return, or condenser and evaporator supply, condenser supply and evaporator return, etc. Can someone please clarify?</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"> </span></font></p><p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">Thanks</span></font></p><p class="MsoNormal">
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