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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In the current version of eQUEST, you are limited to modelling VRF with a series of PVVT systems. There is no way for heat from one PVVT system operating in cooling mode to be rejected to another PVVT system which requires heating. You could model the VRF system as water source heat pumps which would allow the recovery of heat to other zones – but does not allow for the variable flow compressors and the cooling becomes water-source rather than air-source.<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 lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Evangelia Gklezakou<br><b>Sent:</b> Thursday, November 15, 2012 8:35 AM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] VRF with heat recovery<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dear users,<o:p></o:p></p><div><p class=MsoNormal>I am modelling a VRF system (gas heat pump, heat recovery etc), I have already read the suggested presentation from Energy Trust of Oregon regarding VRF system modelling. At the end of the presentation is described a procedure in order to calculate the heat recovery (Create an hourly report for each zone with two series Elec input to heat (kW) and Elec input to cool (kW), when there is both heating and cooling for a particular hour the smaller value of the two is the energy recovered by the Refrigerant Branch Selector Box). Is this the only way to calculate the recovered energy, does not the software take it into account during the simulations? Must this amount be subtracted from the total energy consumption?<o:p></o:p></p></div><div><p class=MsoNormal>Thank you for your help.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Regards,<o:p></o:p></p></div><div><p class=MsoNormal>Eva<o:p></o:p></p></div></div></body></html>