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<p class="MsoNormal">Hi Melissa,<o:p></o:p></p>
<p class="MsoNormal">Try this expression for NEUTRAL-ZONE-HT:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">switch (#SV(#L("INF-METHOD")))<o:p></o:p></p>
<p class="MsoNormal"> case 0 : unused<o:p></o:p></p>
<p class="MsoNormal"> case 1 : unused<o:p></o:p></p>
<p class="MsoNormal"> case 2 : NPL-(#P("Z")+#P("FLOOR-HEIGHT")/2)<o:p></o:p></p>
<p class="MsoNormal"> case 3 : unused<o:p></o:p></p>
<p class="MsoNormal"> case 4 : unused<o:p></o:p></p>
<p class="MsoNormal"> default : unused<o:p></o:p></p>
<p class="MsoNormal">endswitch<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Calculate the neutral pressure level for your building and replace “NPL” in the expression with the calculated value.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">~Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:3.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
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<v:f eqn="if lineDrawn pixelLineWidth 0" />
<v:f eqn="sum @0 1 0" />
<v:f eqn="sum 0 0 @1" />
<v:f eqn="prod @2 1 2" />
<v:f eqn="prod @3 21600 pixelWidth" />
<v:f eqn="prod @3 21600 pixelHeight" />
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(585) 698-1956</span></i></b><b><i><span style="color:#002060"> </span>
</i></b><span style="color:#1F497D"> </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">F: (585) 325-6005<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:blue">bbishop@pathfinder-ea.com</span></a><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"> </span><a href="http://www.pathfinder-ea.com/"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:blue">www.pathfinder-ea.com</span></a><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">134 South Fitzhugh Street<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">Rochester, NY 14608
<img border="0" width="26" height="23" style="width:.2708in;height:.2395in" id="_x0000_i1028" src="cid:image008.png@01D5FC51.3BD960B0">
</span><i><span style="font-size:7.0pt;font-family:"Verdana",sans-serif;color:#00B0F0">Ask me why Carbon Fee & Dividend may be right for you.</span></i><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Melissa Crowe via Equest-users<br>
<b>Sent:</b> Tuesday, March 17, 2020 10:13 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] User Expression for Infiltration Neutral Zone Height<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi All<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Help please, I am struggling with User Expression that calculates the Neutral Zone Height for high rise infiltration. It’s something like:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">((Parent("Z")-0)+Local("Height")/2)*-1+(BH/2 - BG)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Where:<o:p></o:p></p>
<p class="MsoNormal">BH = Building Height<o:p></o:p></p>
<p class="MsoNormal">BG = Total of Below Grade FL to FL Height<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also the default expression includes a switch statement. I don’t thin I need a switch statement, so how is it formatted?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="343" height="283" style="width:3.5729in;height:2.9479in" id="Picture_x0020_2" src="cid:image009.png@01D5FC51.3BD960B0"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="186" height="135" style="width:1.9375in;height:1.4062in" id="_x0000_i1026" src="cid:image010.png@01D5FC51.3BD960B0"><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#006600">Melissa Crowe, LEED AP, BEMP</span></b><b><i><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Senior Mechanical/Energy Engineer</span><span style="font-family:"Brush Script MT""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Brush Script MT""><o:p> </o:p></span></p>
<p class="MsoNormal"><img border="0" width="139" height="45" style="width:1.4479in;height:.4687in" id="Picture_x0020_1" src="cid:image011.jpg@01D5FC51.3BD960B0"><span style="font-family:"Arial",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#006600">Boston Office<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">161 Worcester Road<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Suite 305<span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Framingham, MA 01701<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">508-647-9200 ext. 1225<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><a href="http://www.cmta.com/">www.cmta.com</a>
<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">We’ve moved! Our new location is noted above – please update your records.<o:p></o:p></span></p>
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