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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Bill,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">The great majority of high rise multi-family buildings are condominiums (like your co-ops). Each suite is metered for electricity directly by the utility so the designs try
to get as much electricity into the suites. Then there is the all glazing fad that isn’t fading. In order to meet the local code, you need condensing boilers for heating and air side heat recovery therefore the insuite ERVs.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Note, all designs also include a makeup air system for corridor pressurization (mostly for odor control) and there is no return to these make-up air systems. 50 cfm per suite
is the typical amount dumped into the corridors. As well, most of these buildings pursue LEED therefore have weather stripping on the suite doors for the tobacco prerequisite. I don’t know where all that corridor pressurization makeup air goes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:6.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Christopher R. Jones</span></b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">, P.Eng.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Technical Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Sustainability & Energy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><img width="78" height="37" style="width:.8125in;height:.3854in" id="_x0000_i1030" src="cid:image001.png@01D3B77C.80DD70A0"></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">T +1 416-644-0252<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">2300 Yonge Street, Suite 2300<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Toronto, ON M4P 1E4 Canada</span><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><br>
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-CA"><a href="wsp.com">wsp.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><u><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:blue;mso-fareast-language:EN-CA"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7F7F7F;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#6EA900;mso-fareast-language:FR">Please consider the environment before printing...<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Bishop, Bill [mailto:bbishop@pathfinder-ea.com]
<br>
<b>Sent:</b> Thursday, March 08, 2018 2:06 PM<br>
<b>To:</b> Jones, Christopher <Christopher.r.Jones@wsp.com><br>
<b>Subject:</b> RE: [Equest-users] exhaust heat recovery system with PTAC in eQUEST<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Does your local code require ERVs for each suite?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Jones, Christopher [<a href="mailto:Christopher.r.Jones@wsp.com">mailto:Christopher.r.Jones@wsp.com</a>]
<br>
<b>Sent:</b> Thursday, March 08, 2018 1:22 PM<br>
<b>To:</b> Bishop, Bill <<a href="mailto:bbishop@pathfinder-ea.com">bbishop@pathfinder-ea.com</a>><br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: [Equest-users] exhaust heat recovery system with PTAC in eQUEST<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Hi Bill,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">We have been around that exception a number of times. The conclusion reached is that exception 8 does not apply if each suite has an ERV responsible for the outdoor air and
exhaust of that suite.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">If the building has a central make-up air system dumping air into the corridors, through the carpet filter under the doors into the suites, then locally exhausted, then exception
8 does apply. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Here in Ontario we model the baseline as per Section 11, ECB. Most new apartment buildings have insuite ERVs and fan coils. Therefore the baseline suite systems also have heat
recovery.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:6.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Christopher R. Jones</span></b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">, P.Eng.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Technical Specialist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Sustainability & Energy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><img border="0" width="78" height="37" style="width:.8125in;height:.3854in" id="Picture_x0020_15" src="cid:image001.png@01D3B77C.80DD70A0"></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">T +1 416-644-0252<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">2300 Yonge Street, Suite 2300<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR">Toronto, ON M4P 1E4 Canada<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-CA"><a href="wsp.com">wsp.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><u><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:blue;mso-fareast-language:EN-CA"><o:p><span style="text-decoration:none"> </span></o:p></span></u></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7F7F7F;mso-fareast-language:FR"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#6EA900;mso-fareast-language:FR">Please consider the environment before printing...<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Bishop, Bill via Equest-users<br>
<b>Sent:</b> Thursday, March 08, 2018 1:00 PM<br>
<b>To:</b> sunayana jain <<a href="mailto:sunayanajn@gmail.com">sunayanajn@gmail.com</a>><br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] exhaust heat recovery system with PTAC in eQUEST<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Sunayana,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Use Pkgd Single Zone (PSZ) systems to model Appendix G PTACs. You will need to create one PSZ system per zone which might mean 100+ systems for your 6-story apartment
building. Floor multipliers are probably in order.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The PTAC fan power of 0.0003 kW/cfm includes ERVs. I’m not aware of an exception to Appendix G that would apply.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">There are a few possibilities for justifying no ERV in the baseline:<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="color:#1F497D;mso-list:l0 level1 lfo2"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Ventilation system runs <8000 hrs/year (hard to justify for apartments?)<o:p></o:p></span></li><li class="MsoNormal" style="color:#1F497D;mso-list:l0 level1 lfo2"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">The building is a multipurpose use and you can model additional system types in the nonresidential areas<o:p></o:p></span></li><li class="MsoNormal" style="color:#1F497D;mso-list:l0 level1 lfo2"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">6.5.6.1 exception (8.), “where the largest source of air exhausted at a single location at the building exterior is less than
75% of the design outdoor airflow rate”. This would seem to apply, since each PTAC handles the ventilation load for one zone, and the baseline would have no large common exhaust location.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></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%;font-family:"Calibri",sans-serif;color:#1F497D">
</span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">Rochester, NY 14608<o:p></o:p></span></p>
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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></i></b><b><i><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#002060">
</span></i></b><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D"> </span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">F: (585) 325-6005</span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D"><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><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black">
</span><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D"><a href="http://www.pathfinder-ea.com/"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:blue">www.pathfinder-ea.com</span></a><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:3.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D"><img border="0" width="34" height="32" style="width:.3541in;height:.3333in" id="Picture_x0020_5" src="cid:image004.png@01D3B77C.80DD70A0" alt="http://png-5.findicons.com/files/icons/977/rrze/720/globe.png"></span><span style="font-size:7.5pt;line-height:105%;font-family:"Calibri",sans-serif;color:#00B0F0">Carbon
Fee and Dividend - simple, effective, and market-based.</span><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>sunayana jain via Equest-users<br>
<b>Sent:</b> Thursday, March 08, 2018 11:16 AM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] exhaust heat recovery system with PTAC in eQUEST<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif">As per ASHRAE 90.1-2013, exhaust air energy recovery is required for ventilation systems operating greater than
8000 hours per year. I am working on a baseline model of 6 storeys apartment building in climate zone 5A. As per ASHRAE 90.1-2013 Appendix G, apartments units are required to have PTAC systems with heat recovery. I am wondering, how to model PTAC with heat
recovery in eQUEST. PTAC system cannot take heat recovery in eQUEST. <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif">Also, ASHRAE does not have any information on fan power for energy recovery systems. Should the ERV fan be a part
of allowable 0.0003 kW/cfm fan power?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif">Any suggestions will be appreciated.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:105%"><span style="font-size:11.0pt;line-height:105%;font-family:"Calibri",sans-serif">Sunayana Jain<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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