<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Michael,</div><div><br></div><div>Typically I would leave a cooling tower for each plant as it is not possible to assign multiple plants to a single tower as far as I know. Cooling tower energy consumption can than be divided up in each plant as a ratio based on plant capacity or input as an appropriate kW/ton.</div><div><br></div><div>Best, </div><div>Jason<br><br>Sent from my iPhone</div><div><br>On Apr 2, 2014, at 10:57 AM, "Michael Chavez" <<a href="mailto:mchavez@sumacinc.com">mchavez@sumacinc.com</a>> wrote:<br><br></div><blockquote type="cite"><div><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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<div class="WordSection1">
<p class="MsoNormal">Trace users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Did anybody have modeled an VRF – Water system? I’m trying to model this system and I have had some problems:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><!--[endif]-->The system consists in several evaporator units located on each office, these evaporators works whit one condensing unit for each floor. All condensing units are cooled by one cooling tower located on the roof.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><!--[endif]-->I have tried to create one WSHP plant for each floor, delete the cooling tower of each one and create a new cooling tower for all plants. Like a next image:<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoListParagraph" align="center" style="text-align:center"><span style="mso-fareast-language:ES-PE"><image002.jpg></span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><!--[endif]-->Whit this, the calculation results shows only the first WSHP plant, and the cooling tower does not work properly.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Have you got any idea for modeling this system.?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your help,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Michael<span style="mso-fareast-language:ES-PE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ES-PE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ES-PE"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="ES" style="font-size:10.0pt;font-family:"Helvetica","sans-serif";color:#943634;mso-fareast-language:ES-PE">SUMAC</span></b><b><span lang="ES" style="font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black;mso-fareast-language:ES"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="ES" style="font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black;mso-fareast-language:ES-PE">Michael Chávez | Analista LEED Energía Jr.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="ES" style="font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black;mso-fareast-language:ES-PE"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:ES-PE">Tel: +511.253.5355 (Lima, Perú)</span><span style="color:black;mso-fareast-language:ES-PE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:black;mso-fareast-language:ES-PE">Tel: +593.4.600.0613 (Guayaquil, Ecuador)<br>
Tel: + 571.3151985 (Bogotá, Colombia)</span><span style="color:black;mso-fareast-language:ES-PE"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;color:black;mso-fareast-language:ES-PE">Tel: +1.773.857.7906 (Chicago, USA)</span><span lang="EN-US" style="color:black;mso-fareast-language:ES-PE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ES-PE"><a href="mailto:mchavez@sumacinc.com"><span lang="EN-US" style="font-size:9.0pt;color:blue">mchavez@sumacinc.com</span></a></span><span lang="EN-US" style="color:black;mso-fareast-language:ES-PE"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:ES-PE"><a href="http://www.sumacinc.com"><span style="font-size:9.0pt;color:blue">www.sumacinc.com</span></a><span style="color:black"><o:p></o:p></span></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Trace-users mailing list</span><br><span><a href="http://lists.onebuilding.org/listinfo.cgi/trace-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trace-users-onebuilding.org</a></span><br><span>To unsubscribe from this mailing list send a blank message to <a href="mailto:TRACE-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">TRACE-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a></span><br></div></blockquote></body></html>