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<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">I need to simulation in eQUEST an office building in Bangkok for LEED project.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">This project used Daikin VRF system with fan-coil unit to control many zone. First, I selected PVAVS instead of PSZ (suggest by manufacturer guidance) because it have
control zone.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">For PVAVS, I revised a FAN-CONTROL to constant , Min Flow Ratio = 1 and then put zone assign flow as fan-coil unit spec per room.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">I put system fan power by sum of fan-coil kW/cfm per system, system capacity as CDU spec and put all performance curve from manufacturer.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">After reviewed, reviewer had a comment
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif""><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span></i><![endif]><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif"">The narrative states that a packaged VAV system was modeled instead of a packaged single zone system as is indicated in the manufacturer’s
guidance. <o:p></o:p></span></i></p>
<p class="MsoNoSpacing" style="margin-left:.5in;text-align:justify"><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif"">However, this is inappropriate as each fan coil unit in the design is required to meet the space load as
necessary while a packaged VAV is designed <o:p></o:p></span></i></p>
<p class="MsoNoSpacing" style="margin-left:.5in;text-align:justify"><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif"">to supply cool air to all spaces and either adjust the volume of air or reheat the air as necessary in order
to maintain the space setpoint. <o:p></o:p></span></i></p>
<p class="MsoNoSpacing" style="margin-left:.5in;text-align:justify"><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif"">Based on the zoning of the spaces it is unclear if the cooling loads seen by each fan coil unit in the design
will be consistent with the cooling load <o:p></o:p></span></i></p>
<p class="MsoNoSpacing" style="margin-left:.5in;text-align:justify"><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman","serif"">seen by all of the units on each condenser combined.<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">How can I simulate VRF system for this project or answer this question?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif"">Thank you in advance<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">Mr.Teerawat Wongkamolseth
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">Green Building Consultant<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">Architect
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt;color:#1F497D;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:16.0pt;color:#1F497D;mso-fareast-language:EN-GB"><img width="200" height="52" id="Picture_x0020_1" src="cid:image001.jpg@01D1A097.316CBA10" alt="Description: SCG Green Building Solution"></span><span lang="EN-US" style="font-size:16.0pt;color:#1F497D;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:16.0pt;color:#1F497D;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">M : 081-933-7487, 089-767-3439<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">Tel : 02-586-5010<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt;font-family:"BrowalliaUPC","sans-serif";color:#1F497D;mso-fareast-language:EN-GB">E-mail :
<a href="mailto:teerawwo@scg.co.th"><span style="color:blue">teerawwo@scg.co.th</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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