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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Hello Harshal,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Thanks for the response. I’m more concerned about whether the fan power of both the DOAS and terminal unit should be added together for the calculation rather than how to model the system. Unfortunately the NECB code committee does not respond to interpretation requests, they refer you to your AHJ.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Aaron<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='mso-element:frame;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-element-top:.05pt;mso-height-rule:exactly'><table cellspacing=0 cellpadding=0 hspace=0 vspace=0 align=left><tr><td valign=top align=left style='padding-top:0cm;padding-right:0cm;padding-bottom:0cm;padding-left:0cm'><div><p class=MsoNormal style='mso-element:frame;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-element-top:.05pt;mso-height-rule:exactly'><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Aaron Smith,</span></b><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:navy'> </span></b><i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray'>P.Eng<o:p></o:p></span></i></p><p class=MsoNormal style='mso-element:frame;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-element-top:.05pt;mso-height-rule:exactly'><i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray'>Principal, Mechanical Engineer</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='mso-element:frame;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-element-top:.05pt;mso-height-rule:exactly'><i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray'>LEED® AP BD+C, BEMP, BEAP, CGD</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='mso-element:frame;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-element-top:.05pt;mso-height-rule:exactly'><i><span style='font-size:1.0pt;font-family:"Calibri",sans-serif;color:gray'><o:p> </o:p></span></i></p></div></td></tr></div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray'>M&R Engineering Ltd.</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Gupta, Harshal [mailto:Harshal.Gupta@wsp.com] <br><b>Sent:</b> July-14-19 1:28 AM<br><b>To:</b> Aaron Smith <asmith@mreng.ca><br><b>Cc:</b> bldg-sim@lists.onebuilding.org<br><b>Subject:</b> Re: [Bldg-sim] NECB Reference Building Fan Power<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Hi Aaron,<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>In case you are working on 3.65 : 7173 (2016 version) below will work. In 3.65 :7175 thier is a option to model DOAS. <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>In this case you can devide DOAS fan conneted load from DOAS CFM to evulate DOAS kW/CFM. You can add the DOAS CFM to all terminal units/Fan coil and DOAS connected fan load to terminal fan load per cfm basis to calculate new fan power (terimanl+DOAS). Suppose DOAS is catering 50 cfm to particular thermal zone of 500 dehumidification cfm, so new cfm will be 550 and fan load (terminal fan kW+ ((DOAS kW/DOAS CFM)* 50))<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>The issue is, in case if you are modelling fan coil you wont be able to model heat recovery on Fan coil in eQUEST. <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Another thing is fan coil will work on constant volume in eQUEST, so if your proposed FC is 2 speed or equiped with EC motor than it can be less consumption in building but i am afraid that it is not possible to model. You can check the possibility to load fan curve to work on that. <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>It will include the fan load and latent load and increase your consumption accuracy, but will be not highly precise. <o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Harshal Gupta<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Energy Performance Analyst, iCRC US<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>T+91 1204808419<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>F+91 1204808480<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>M+918377935404<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>FC-24, First Floor, Sector 16A,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Filmcity, Noida, Uttar Pradesh<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>201 301<o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><br><br><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>From: Aaron Smith via Bldg-sim<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Sent: Saturday, July 13, 02:42<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Subject: [Bldg-sim] NECB Reference Building Fan Power<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>To: <a href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim@lists.onebuilding.org</a><br><br><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Hello,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>I’m curious about other’s take on Reference Building fan power for projects where the Proposed building has terminal units with a DOAS system. Let’s say you have fan coil units and a central DOAS system with heat recovery. In doing the 10kW fan power check, would you include fan power from your DOAS system as well as all the terminal units? If so, would you only include the fan power for the supply fan in the DOAS system?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>See some excerpts from the 2015 NECB pasted below.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>Aaron<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>8.4.4.18.(5) Where the proposed building's secondary system does not meet the requirements of Clause 5.2.3.1.(1)(b), the reference building's secondary system shall be modeled as having an identical fan power demand.</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>5.2.3.1 Application </span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>1) Except tor equipment covered by Article 5.2.12.1. and whose minimum performance includes fan energy, this Subsection applies to all fan systems </span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>a) that are used for comfort heating, ventilating or air-conditioning, or any combination thereof, and</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>b) for which the total of all fan motor nameplate ratings is 10 kW or more (see Note A-5.2.3.1.(2)).</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>2) For the purposes of this Subsection, the power demand of a fan system shall be the sum of the demand of all tans required to operate at design conditions to supply air to the conditioned space. (See Note A-5.2.3.1.(2).)</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> </span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>A-5.2.3.1 .(2) Fan System Design. Although the allowed maximum power demand of a fan system based solely on the supply airflow, the calculation of actual power demand includes supply fans, return fans, relief fans, and fans for series fan-powered boxes, but not parallel-powered boxes or exhaust fans such as bathroom or laboratory exhausts.</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> </span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'>A-5.2.3.2.(1) Constant-Volume Fan Systems. This type of system includes bypass variable-air-volume systems in which the airflow through the tan is not varied. Both supply and return fans must be accounted for, but not exhaust fans. The power demand of the motors refers to the power drawn by the motors and not their nameplate rating.</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal> Aaron Smith, <o:p></o:p></p></td></tr></table><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black;display:none'><o:p> </o:p></span></i></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal>P.Eng <o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal> Principal, Mechanical Engineer <o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal> <o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> LEED® AP BD+C, BEMP, BEAP, CGD</span></i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><img border=0 width=170 height=35 id="_x0000_i1025" src="cid:image001.jpg@01D53BC6.37594BA0" alt="cid:image004.jpg@01D045E5.C57CEB70"><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <img border=0 width=65 height=43 id="_x0000_i1026" src="cid:image002.jpg@01D53BC6.37594BA0" alt="webCertified_logo_colorRGB72DPI"><o:p></o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal> t: (902) 422-7393 <o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal> f: (902) 423-4945 <o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> e: <a href="mailto:asmith@mreng.ca">asmith@mreng.ca</a><o:p></o:p></span></p></div><div><p class=MsoNormal><b><i><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> </span></i></b><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'><a href="http://www.mreng.ca/"><b>www.mreng.ca</b></a><b> </b><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial",sans-serif;color:black'> <o:p></o:p></span></p></div><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal>The electronic message contained herein is private and confidential, intended only for the recipient(s) specified. 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