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<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US">Hi Bill,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US">Would you mind resharing that file on VRF you’re talking of in the email you copied?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US">Many thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="color:#1F497D;mso-fareast-language:EN-US"><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="50" height="48" style="width:.525in;height:.5in" id="_x0000_i1027" src="cid:image001.jpg@01D65443.67C760B0"></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, Chargé de projets</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:10.0pt;font-family:"Arial",sans-serif;color:#A5A5A5">Développement durable et Efficacité énergétique<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#A5A5A5">plapierre@bpa.ca | t: 5143833747x2807<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#BFBFBF"> </span><span style="color:#1F497D;mso-fareast-language:EN-US"><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 <equest-users-bounces@lists.onebuilding.org>
<b>De la part de</b> Bishop, Bill via Equest-users<br>
<b>Envoyé :</b> 7 juillet 2020 09:37<br>
<b>À :</b> Matthew S. Garlick <msg@tbcxinc.com><br>
<b>Cc :</b> equest-users@lists.onebuilding.org<br>
<b>Objet :</b> Re: [Equest-users] DOE 2.3 VRF Heating Efficiency?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">See my previous email copied below which gives more background on VRF heating efficiency.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" 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 lang="EN-US" 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 lang="EN-US" style="font-size:3.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
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</span></i></b><span lang="EN-US" style="color:#1F497D"> </span><span lang="EN-US" 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"><span lang="EN-US"><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><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"> </span><span lang="EN-US"><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></span></p>
<p class="MsoNormal"><span lang="EN-US" 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 lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">Rochester, NY 14608
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</span><i><span lang="EN-US" style="font-size:7.0pt;font-family:"Verdana",sans-serif;color:#00B0F0">Ask me why Carbon Fee & Dividend may be right for you.<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-US" style="font-size:7.0pt;font-family:"Verdana",sans-serif;color:#00B0F0"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Bishop, Bill
<br>
<b>Sent:</b> Wednesday, June 5, 2019 8:44 AM<br>
<b>To:</b> Porter, Frederick NOR <<a href="mailto:fporter@noresco.com">fporter@noresco.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: VRF Heating COP in eQUEST<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi Fred,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For VRF condensing units in eQUEST, the heating EIR is a function of other variables. You can use the following keyword expression to determine the heating EIR that is used by eQUEST. It can be entered as a user input
expression into one of the other keywords, so you can see how it changes when you change the other variables. (For example, you can enter it as an expression for MIN-UNLOAD-RATIO or MIN-HGB-RATIO, which have default values that are close to the heating EIR,
in case you leave the expression in when you simulate.) You can see all the variables that determine the heating EIR in the expression:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/* This expression will calculate the heating EIR that DOE-2.3 will use<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> for a VRF condensing unit. You can input this as a user expression<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> in another keyword such as MIN-UNLOAD-RATIO. */<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#L("COOLING-EIR")*(#LR("EIR-FSST&SDT","COEFFICIENTS",0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",1)*#L("HEAT-RATED-SST")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",2)*#L("HEAT-RATED-SST")**2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",3)*#L("HEAT-RATED-SDT")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",4)*#L("HEAT-RATED-SDT")**2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",5)*#L("HEAT-RATED-SST")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">*#L("HEAT-RATED-SDT"))<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">/(#LR("EIR-FSST&SDT","COEFFICIENTS",0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",1)*#L("COOL-RATED-SST")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",2)*#L("COOL-RATED-SST")**2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",3)*#L("COOL-RATED-SDT")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",4)*#L("COOL-RATED-SDT")**2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">+#LR("EIR-FSST&SDT","COEFFICIENTS",5)*#L("COOL-RATED-SST")<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">*#L("COOL-RATED-SDT"))<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Remember that fan energy should be accounted for when converting rated EER or COP to EIR. Doug Maddox shows how to calculate VRF EIR in this presentation:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="http://maddoxenergy.com/eQuest_DOE23_VRF.pdf">http://maddoxenergy.com/eQuest_DOE23_VRF.pdf</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cooling EIR for the condensing unit: (3.413/AHRI_EER-0.01138)/(1+0.01138)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I believe you would reverse the fan energy for heating. Heating EIR = (1/COP+0.01138)/(1-0.01138)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The constant 0.01138 is the allowance for indoor fan EIR.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Also, I created a modified BDLDialogs.txt file to use with DOE2.3. The file adds these keyword capabilities to the eQUEST interface:<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
<![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">SYSTEM:RATED-FLOW<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
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</span></span></span><![endif]><span lang="EN-US">SYSTEM:HRATED-FLOW<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
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</span></span></span><![endif]><span lang="EN-US">SYSTEM:NUM-COOL-STAGES (for PVVT systems)<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
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</span></span></span><![endif]><span lang="EN-US">SYSTEM:NUM-HEAT-STAGES (for PVVT systems)<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
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</span></span></span><![endif]><span lang="EN-US">SYSTEM:LOW-FAN-PWR (for PVVT systems)<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
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</span></span></span><![endif]><span lang="EN-US">SYSTEM:MAX-CAP/UNIT (for VRF coils)<o:p></o:p></span></p>
<p class="gmail-m-4634787887509830958msolistparagraph" style="margin-left:36.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo3">
<![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">CONDENSING-UNIT:TYP-CAP/SYSTEM (for VRF condensing units)<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">The file also adjusts the number of decimal places displayed for several keywords, such as the cooling EIR that you mentioned. I am happy to share this file with
eQUEST users (it is ~1.7 MB).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">~Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span lang="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">From:</span></b><span lang="EN-US"> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Matthew S. Garlick via Equest-users<br>
<b>Sent:</b> Friday, July 3, 2020 11:20 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] DOE 2.3 VRF Heating Efficiency?<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Howdy folks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m working through an air source VRF system and have found no place to explicitly place a heating efficiency, only the cooling EIR. As far as I can see there’s no mention of heating efficiency in the user’s manual as
well. Can anyone explain how heating efficiency is calculated in 2.3 without the user specifying it?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">On a related note, I’m also studying a water source VRF system on this project. Has anyone heard rumors of this being developed in a future version of eQUEST? I’m currently using the WSHP workaround you all helped me
put together a year or so ago. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks and have a great 4<sup>th</sup> of July weekend!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial",sans-serif;color:black"><img border="0" width="125" height="54" style="width:1.3in;height:.5666in" id="_x0000_i1026" src="http://www.tbcxinc.com/TBCx_Logo_Email1000ppi.png" alt="TBCx"><br>
<br>
<b>Matt Garlick, CxA, CEM, BEMP</b><br>
Principal Commissioning Authority, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt;font-family:"Arial",sans-serif;color:black">Energy Engineer | TBCx<br>
<br>
E-mail: <a href="mailto:msg@tbcxinc.com">msg@tbcxinc.com</a><br>
Mobile: 801-907-5654<br>
Direct: 801-401-9492<br>
<br>
324 S. State Street, Suite 400<br>
Salt Lake City, UT 84111</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
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