<html><head></head><body><div class="ydpda6bff55yahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><div></div>
<div dir="ltr" data-setdir="false">Thanks Christina and Bill for your help, but I have the following two questions:</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><ul dir="ltr" data-setdir="false"><li>Does using a fan curve for static pressure reset reflect the actual operation of this control strategy? I mean, the operation of this control strategy depends on the building type, thermal load, building location...etc but if all of us use the same fan curve to represent it in eQUEST, will that gives accurate results?</li><li>Where can I find appendix G for modeling?</li></ul><div><br></div><div dir="ltr" data-setdir="false">Regards</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Ahmad</div></div><div><br></div>
</div><div id="ydp75f2a635yahoo_quoted_1373099329" class="ydp75f2a635yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Friday, September 10, 2021, 01:55:52 AM GMT+10, Bishop, Bill <bbishop@pathfinder-ea.com> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id="ydp75f2a635yiv2301710828"><div>
<div class="ydp75f2a635yiv2301710828WordSection1">
<p class="ydp75f2a635yiv2301710828MsoNormal">Nice find Christina!</p>
<p class="ydp75f2a635yiv2301710828MsoNormal">All,</p>
<p class="ydp75f2a635yiv2301710828MsoNormal">I compiled the three fan curves at the bottom of Table 50 into the attached input file. You can load them into your eQUEST models using File -> Import File…</p>
<p class="ydp75f2a635yiv2301710828MsoNormal">A few comments about use of these curves with Appendix G modeling in eQUEST:</p>
<ul style="margin-top:0in;" type="disc"><li class="ydp75f2a635yiv2301710828MsoListParagraph" style="margin-left:0in;">Static pressure reset control is a prescriptive requirement in 90.1-2016 6.5.3.2.3. Therefore, most proposed designs should include SP reset and supply fans should be modeled using
the “MZVAV Good SP Reset Fan Curve” attached.</li><li class="ydp75f2a635yiv2301710828MsoListParagraph" style="margin-left:0in;">The “Multi Zone VAV with VSD and fixed SP setpoint” curve in Table 50 is the same curve required by Appendix G. Supply fans for Baseline System Types 5 through 8 should be modeled
with this fan curve.</li><li class="ydp75f2a635yiv2301710828MsoListParagraph" style="margin-left:0in;">Appendix G3.1.3.15 says the same curve applied to Systems 5 through 8 should be applied to Baseline System 11. However, the PNNL PRM Reference Manual p.3.154 says use the “Single zone
VAV fan” curve which is based on perfect static pressure reset and uses the least energy of all the Table 50 curves.</li><li class="ydp75f2a635yiv2301710828MsoListParagraph" style="margin-left:0in;">Up until now, I have always used the same fan curve for both supply and return fans (SYSTEM:FAN-EIR-FPLR and SYSTEM:RETURN-EIR-FPLR). However, the PRM Reference Manual p.3.158 says
use the “Multi zone VAV with static pressure reset curve” for Baseline Systems 5 through 8 and 11. I don’t know if this is an error or if there is logic to using a more efficient fan curve for return fans.</li><li class="ydp75f2a635yiv2301710828MsoListParagraph" style="margin-left:0in;">Table 50 also has a column for %Powermin, or minimum fan power as a percent of full load power. The values are 20% for MZVAV with fixed SP setpoint (the standard App.G curve) and 10%
for the two static pressure reset curves. However, Appendix G also requires minimum volume set points of 30% for Baseline Systems 5 through 8 and 50% for System 11 (entered in eQUEST using ZONE:MIN-FLOW-RATIO and which should also be adjusted for minimum OA
if necessary). The combination of MIN-FLOW-RATIO and fan curve will dictate the minimum fan power percentage instead of the %Powermin.</li></ul>
<p class="ydp75f2a635yiv2301710828MsoNormal">Regards,</p>
<p class="ydp75f2a635yiv2301710828MsoNormal">~Bill</p>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><b><span style="font-size:10.0pt;font-family:Gothic sans-serif;color:black;">William Bishop, PE, BEMP, BEAP, CEM, LEED AP</span></b></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><b><span style="font-size:9.0pt;font-family:sans-serif;color:black;">Senior Energy Engineer</span></b></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><img align="left" style="margin-top: 10px; margin-bottom: 0px; width: 105px; max-width: 105px;" src="cid:4StS2CovtQeRdERRKC9I" hspace="12" alt="Pathfinder-EA-logo-2" data-inlineimagemanipulating="true"><img align="left" style="width: 136px; max-width: 136px;" src="cid:A0zKnF8w9zyrwL1AqKYZ" hspace="12" alt="Logo Description automatically generated" data-inlineimagemanipulating="true"><b><span style="font-size:2.0pt;font-family:sans-serif;color:black;"></span></b></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><b><i><span style="font-size:9.0pt;font-family:sans-serif;color:#002060;">T: (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:sans-serif;color:#1F497D;">F: (585) 325-6005</span><b><span style="font-size:3.0pt;font-family:sans-serif;color:black;"></span></b></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><a shape="rect" href="mailto:wbishop@pathfinder-ea.com" rel="nofollow" target="_blank"><span style="font-size:9.0pt;font-family:sans-serif;">bbishop@pathfinder-ea.com</span></a><span style="font-size:9.0pt;font-family:sans-serif;color:black;"> </span><a shape="rect" href="http://www.pathfinder-ea.com/" rel="nofollow" target="_blank"><span style="font-size:9.0pt;font-family:sans-serif;">www.pathfinder-ea.com</span></a><span style="color:#1F497D;"></span></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:9.0pt;font-family:sans-serif;color:#1F497D;">134 South Fitzhugh Street</span></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:9.0pt;font-family:sans-serif;color:#1F497D;">Rochester, NY 14608
<img id="ydp75f2a635yiv2301710828Picture_x0020_6" border="0" width="26" height="23" style="width:.2708in;min-height:.2395in;" src="cid:BFWkqCuCDZXKnqahc9AQ" data-inlineimagemanipulating="true">
</span><i><span style="font-size:7.0pt;font-family:sans-serif;color:#00B0F0;">Ask me why Carbon Fee & Dividend may be right for you.</span></i><span style="color:#1F497D;"></span></p>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in;">
<p class="ydp75f2a635yiv2301710828MsoNormal"><b>From:</b> Equest-users <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Christina LaPerle via Equest-users<br clear="none">
<b>Sent:</b> Thursday, September 9, 2021 7:52 AM<br clear="none">
<b>To:</b> fraij <fraij@yahoo.com><br clear="none">
<b>Cc:</b> equest-users@lists.onebuilding.org<br clear="none">
<b>Subject:</b> Re: [Equest-users] Modeling Fan Static Pressure Reset in eQuest</p>
</div>
</div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
<div id="ydp75f2a635yiv230171082802e1c230c945ffcaac0ae38b5c4907d1565bc395">
<div id="ydp75f2a635yiv2301710828c602c2e52df9a6f0599fc5de2dcb908d0ded317d">
<p class="ydp75f2a635yiv2301710828MsoNormal" style="line-height:0%;"><span style="font-size:1.0pt;color:white;">Hi Ahmad, I typically model this using the fan curves from the PNNL 90.1 2016 PRM Reference Manual. I provided some screenshots below. Christina Christina LaPerle PE, BEMP,
CEM, CBCP Senior Energ </span></p>
</div>
<table class="ydp75f2a635yiv2301710828MsoNormalTable" id="ydp75f2a635yiv23017108284ada8a46132e438dae4031a8532aed0226a20d43" border="1" cellpadding="0" width="100%" style="width:100.0%;background:#FFE6CC;border:solid #FF8300 1.0pt;border-left:solid #FF8300 4.5pt;"><tbody><tr id="ydp75f2a635yiv23017108283ba32b62f399b0d9b269f25b9df3b8383d7e6d8d"><td colspan="1" rowspan="1" style="border:none;padding:6.0pt 6.0pt 6.0pt 6.0pt;">
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:9.0pt;font-family:sans-serif;color:black;">Warning! This message was sent from outside your organization and we are unable to verify the sender.
</span></p>
</td></tr></tbody></table>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:1.0pt;color:white;">sophospsmartbannerend
</span></p><div class="ydp75f2a635yiv2301710828yqt1907862217" id="ydp75f2a635yiv2301710828yqtfd23995"></div><div class="ydp75f2a635yiv2301710828yqt1907862217" id="ydp75f2a635yiv2301710828yqtfd53448">
</div></div><div class="ydp75f2a635yiv2301710828yqt1907862217" id="ydp75f2a635yiv2301710828yqtfd75779">
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">Hi Ahmad,</p>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">I typically model this using the fan curves from the PNNL 90.1 2016 PRM Reference Manual. I provided some screenshots below.</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><img id="ydp75f2a635yiv2301710828Picture_x0020_1" border="0" style="width: 442px; max-width: 800px;" src="cid:36TfkbK2H0Byd92O8T0P" data-inlineimagemanipulating="true"></p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><img id="ydp75f2a635yiv2301710828Picture_x0020_2" border="0" style="width: 563px; max-width: 800px;" src="cid:OyqqGIOJPcLCJHnH4u93" data-inlineimagemanipulating="true"></p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">Christina</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><br clear="all">
</p>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><b><span style="font-size:9.5pt;font-family:sans-serif;color:#666666;">Christina LaPerle</span></b><span style="font-size:9.5pt;font-family:sans-serif;color:#666666;"> PE, BEMP, CEM, CBCP</span></p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:9.5pt;font-family:sans-serif;color:#666666;">Senior Energy Engineer, Associate<br clear="none">
________________<br clear="none">
</span><img id="ydp75f2a635yiv2301710828Picture_x0020_3" border="0" style="width: 151px; max-width: 151px;" src="cid:VAweqADB4zCxtkCbY1m3" data-inlineimagemanipulating="true"></p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:7.5pt;font-family:sans-serif;color:#666666;">Phone </span><span style="font-size:7.5pt;font-family:sans-serif;color:#1155CC;">860.266.6220</span><span style="font-size:7.5pt;font-family:sans-serif;color:#666666;"> </span></p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;color:#6AA84F;">We are always looking for motivated professionals to join our team. See our career options </span><span style="font-size:7.5pt;font-family:sans-serif;color:#666666;"><a shape="rect" href="https://us-east-2.protection.sophos.com?d=karpmanconsulting.net&u=aHR0cHM6Ly9rYXJwbWFuY29uc3VsdGluZy5uZXQvYXZhaWxhYmxlLWNhcmVlcnM=&i=NWZjNTI0OTJkYjA1OTYwZGY1NmNjOGVj&t=VFR5cGlkL3J6SG0vcVlURXB1VlM3TG5SNXR2N0I3UElrc0dGekIxbXFNST0=&h=b799c90aa2164e48ae44358c5029ff31" rel="nofollow" target="_blank">here</a></span><span style="font-size:10.0pt;font-family:sans-serif;color:#6AA84F;">!</span><span style="font-size:7.5pt;font-family:sans-serif;color:#666666;"><br clear="none">
<br clear="none">
</span></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
</div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
<div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">On Thu, Sep 9, 2021 at 7:47 AM fraij via Equest-users <<a shape="rect" href="mailto:equest-users@lists.onebuilding.org" rel="nofollow" target="_blank">equest-users@lists.onebuilding.org</a>> wrote:</p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in;">
<div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">Hello Guys,</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">What is the best way to model fan static pressure reset in eQuest software?</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">Regards</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal">Ahmad</p>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
<div id="ydp75f2a635yiv2301710828gmail-m_3338069433962007561composer_signature">
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"><span style="font-size:9.5pt;color:#575757;">Sent from my Galaxy</span></p>
</div>
</div>
<div>
<p class="ydp75f2a635yiv2301710828MsoNormal"> </p>
</div>
</div>
<p class="ydp75f2a635yiv2301710828MsoNormal">_______________________________________________<br clear="none">
Equest-users mailing list<br clear="none">
<a shape="rect" href="https://us-east-2.protection.sophos.com?d=onebuilding.org&u=aHR0cDovL2xpc3RzLm9uZWJ1aWxkaW5nLm9yZy9saXN0aW5mby5jZ2kvZXF1ZXN0LXVzZXJzLW9uZWJ1aWxkaW5nLm9yZw==&i=NWZjNTI0OTJkYjA1OTYwZGY1NmNjOGVj&t=ZWFmR0gwZk9waDZnbU1hUGRVVCtkdVlSdVhlaFpKVWltMXVJK3gwOXhIQT0=&h=b799c90aa2164e48ae44358c5029ff31" rel="nofollow" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br clear="none">
To unsubscribe from this mailing list send a blank message to <a shape="rect" href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" rel="nofollow" target="_blank">
EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a></p>
</blockquote>
</div>
</div></div><div class="ydp75f2a635yiv2301710828yqt1907862217" id="ydp75f2a635yiv2301710828yqtfd95723">
</div></div></div></div>
</div>
</div></body></html>