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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Bill,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">For all practical purposes, I also simply set the sensible and latent effectivenesses to 50%. If your energy model will get thorough scrutiny, you may want to use Equation 6-K
in the User’s Manual, 2013 edition.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Keith Swartz, PE
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">|
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:110%"><b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:black">Seventhwave</span></b><b><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:gray"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="line-height:110%"><span style="font-size:10.0pt;line-height:110%;font-family:"Arial",sans-serif;color:black">608.210.7123 seventhwave.org<o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Lapierre, Patrick via Equest-users [mailto:equest-users@lists.onebuilding.org]
<br>
<b>Sent:</b> Thursday, May 18, 2017 11:57 AM<br>
<b>To:</b> Bishop, Bill <bbishop@pathfinder-ea.com><br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] ASHRAE 90.1 ERV 50% energy recovery effectiveness - eQUEST inputs?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="FR-CA" style="color:#1F497D">It is my interpretation as well and what I always do.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CA" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><a href="http://www.bpa.ca/" target="''"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue;text-decoration:none"><img border="0" width="34" height="31" style="width:.3541in;height:.3229in" id="_x0000_i1025" src="cid:image005.jpg@01D2D2D6.09E850E0" alt="Bouthillette Parizeau"></span></a><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#3F3F3F">Patrick</span></b><b><span style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#1F497D"> </span></b><b><span style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#3F3F3F">Lapierre</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#7D7D7D">_ing.
BEMP</span></b><b><span style="font-size:10.0pt;font-family:"Arial Black",sans-serif;color:#1F497D"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#A5A5A5"><a href="mailto:plapierre@bpa.ca">plapierre@bpa.ca</a> | t: 5143833747x2807<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FR-CA" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#BFBFBF"> </span><span lang="FR-CA" style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="FR">De :</span></b><span lang="FR"> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>De la part de</b> Bishop, Bill via Equest-users<br>
<b>Envoyé :</b> 18 mai 2017 12:53<br>
<b>À :</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Objet :</b> [Equest-users] ASHRAE 90.1 ERV 50% energy recovery effectiveness - eQUEST inputs?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FR-CA"><o:p> </o:p></span></p>
<p class="MsoNormal">I’d appreciate some sensible guidance. Please don’t dampen my spirits…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Section 6.5.6.1 describes that required energy recovery systems (ERVs) “shall have at least 50% energy recovery effectiveness”, meaning “a change in enthalpy of the outdoor air supply equal to 50% of the difference between the outdoor air
and return air enthalpies at design conditions”.<o:p></o:p></p>
<p class="MsoNormal">My reaction is to model this by setting both the sensible and latent effectiveness (ERV-SENSIBLE-EFF and ERV-LATENT-EFF) to 50% (0.50).<o:p></o:p></p>
<p class="MsoNormal">Is this correct?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Ye be thanked,<o:p></o:p></p>
<p class="MsoNormal">~Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<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
</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:#006600">|</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black"> Pathfinder Engineers & Architects LLP<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="line-height:105%"><b><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="line-height:105%"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">134 South Fitzhugh Street</span><span style="font-size:9.0pt;line-height:105%;color:#1F497D">
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<p class="MsoNormal" style="line-height:105%"><b><i><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#002060">T: (585) 698-1956</span><span style="color:#002060">
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<p class="MsoNormal" style="line-height:105%"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:blue">bbishop@pathfinder-ea.com</span></a><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black">
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