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<p class="MsoNormal"><span style="color:#1F497D">Eleni,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">From what I understand, each PVVT system represents one of the fan coil units. When you go back through and make the hourly reports, the energy consumption from each zone is added together to represent the total
energy usage of the entire VRF system. Take note of the numbering system that is used in the presentation: 1-2, 1-3. The first number identifies the CU that the PVVT/FCU is connected to, and the second number is the FCU id. They create hourly reports
and go back to do some calculation with excel.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">As far as input values, I would guess that you could add existing data for the spaces, such as flow rate and temperature setpoints. You could also let it autosize the units. I’m not really sure what would be
best. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Good Luck,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Matt Clough<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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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""> Eleni Soulti [mailto:elenisoulti@co2engineering.eu]
<br>
<b>Sent:</b> Tuesday, July 03, 2012 4:07 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] VRF in eQUEST<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I am trying to model a VRF system as Packaged Variable Volume Variable Temperature system.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">My building has four external VRF units connected to terminal units for each space in the interior. According to the power point presentation on the subject, it should be modelled as PVVT with separate system for each
zone. In this case what values would you use? Would it be the same as my original model or is there a way to define values with different proportions based on the initial ones?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Wouldn’t it make more sense to design 4 PVVT as many as the VRF I have? And in this case which is the zone controlling the system? If I ‘m not wrong, eQUEST only allows to choose one.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">And one more general question: eQUEST creates by default plenum for each space and HVAC systems with all zones. Would you remove these default HVAC systems together with the unconditioned spaces and plenums?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thank you very much.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Eleni<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#7F7F7F">On behalf of</span><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:#7F7F7F"> </span><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="ES" style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#7F7F7F">Oficina Huelva.<br>
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<p class="MsoNormal"><span lang="ES" style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#7F7F7F">w. </span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#7F7F7F"><a href="http://www.co2engineering.eu/" target="_blank"><span lang="ES" style="color:#7F7F7F">www.co2engineering.eu</span></a></span><span lang="ES" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p></o:p></span></p>
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