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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">There is indeed a bug that causes the input electricity for loop-to-loop heat pumps in
<i>heating only</i> mode to be doubled. The PS-C/PS-H reports show the correct electrical energy but that value is doubled in the BEPU/PS-F/ES-D reports. It is only the heating energy (cooling reports correctly) and only occurs when the loop-to-loop heat
pump is in heating only mode with no assigned cooling load. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The problem can be avoided by setting the chilled water loop control option keyword to “standby” rather than “demand”.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Interestingly, adding a process load to the cooling loop does not resolve the issue but instead causes the heating only load to be
reported twice – once under <i>heating</i> end use and a second time under <i>miscellaneous</i>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Compliments to Eric Rubli of our office for identifying the loop control solution.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">B<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:8.0pt;line-height:106%"><b><span style="line-height:106%;font-family:"Arial",sans-serif;color:#006298;mso-fareast-language:EN-US">Footprint<br>
<br>
</span></b><b><span style="font-size:10.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006298;mso-fareast-language:EN-US">Brian Fountain<br>
</span></b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935;mso-fareast-language:EN-US">Associate<br>
</span><b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006892;mso-fareast-language:EN-US">d
</span></b><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935;mso-fareast-language:EN-US">416 572 8501</span><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#006892;mso-fareast-language:EN-US">
m </span><span style="font-size:9.0pt;line-height:106%;font-family:"Arial",sans-serif;color:#3D3935;mso-fareast-language:EN-US">416 562 6831<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;mso-fareast-language:EN-US"><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 <equest-users-bounces@lists.onebuilding.org>
<b>On Behalf Of </b>Yongqing via Equest-users<br>
<b>Sent:</b> October 26, 2020 10:54 AM<br>
<b>To:</b> equest-users <equest-users@lists.onebuilding.org><br>
<b>Subject:</b> [Equest-users] Why the metered energy consumption is two times higher than the energy counsumption reported by PS-H<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">CAUTION: EXTERNAL SENDER <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">I am woriking on a project that served by loop to loop heat pump.However, when I model it in eQUEST, a very strange probem occured,which is the electricity consumption
metered by <a name="_Toc382906226">ELEC-METER is two times higher than the one reported by PS-H.Below is the output screenshot:<o:p></o:p></a></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">PS-H report<o:p></o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><img width="1139" height="649" style="width:11.8645in;height:6.7604in" id="_x0000_i1025" src="cid:image001.png@01D6AD09.1D6F4270"><o:p></o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">PS-F for EM2<o:p></o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><img width="1110" height="638" style="width:11.5625in;height:6.6458in" id="_x0000_i1026" src="cid:image002.png@01D6AD09.1D6F4270"><o:p></o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">The electricity meter is only attached to loop to loop heat pump.<o:p></o:p></span></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Toc382906226"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
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