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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'>You have to put a value for the reheat delta T or the reheat coils don’t kick on.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-family:"Segoe UI","sans-serif";color:#C75B12'>William Mak, LEED AP BD+C</span></b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>Mechanical Design Engineer</span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:black'><br></span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><b><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'>EPSTEIN</span></b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>Architecture<br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'>Interiors</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'><br>Engineering<br></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'>Construction</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>Sustainability<br><br>600 West Fulton Street<br>Chicago, Illinois 60661-1259<br><br>D: (312) 429-8116<br>F: (312) 429-8800</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'>E:</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#0070C0'> <a href="mailto:wmak@epsteinglobal.com"><span style='color:blue'>wmak@epsteinglobal.com</span></a></span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'><br>W:</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:#C75B12'> <a href="http://www.epsteinglobal.com/"><span style='color:#C75B12'>www.epsteinglobal.com</span></a></span><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif";color:black'><br><br></span><span style='font-size:10.0pt;font-family:Webdings;color:#00B050'>þ</span><span style='font-size:8.0pt;font-family:"Segoe UI","sans-serif";color:black'> Epstein is a firm believer in sustainability. We ask that you please consider the environment before printing this e-mail.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Segoe UI","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>DongEun Kim<br><b>Sent:</b> Thursday, June 23, 2011 11:58 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] VAV with Electric Reheat<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Hi all,</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='color:navy'>Can anyone give me an advice regarding a problem described below?</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>I need to model a VAV system with chilled water coil and hot water coil, and also with Electric Reheating.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>As a start, I selected 'VAV with HW Reheat' system.</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>However, I've realized that the system only generates a reheating coil without a main hot water coil(heating coil).</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>So I installed 'heating coil' in the detailed mode, and then,</span> <span style='color:navy'>I changed the zone heat source to be 'electric'.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>However when I take a look at the result, there came two problems.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>1. Heating was mainly done by reheating coil not by main heating coil.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>2. Reheating didn't seem to use electricity.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Any advice will be greatly appreciated.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Thank you in advance.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>~DE <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='color:navy'>Kim, DongEun(DE) | Research Engineer, LEED AP<br>Annex R&D Institute, HIMEC(Hanil Mech. & Elec. Consultants)</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></body></html>