<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I would check the part load performance below 50% load and ensure you are happy with what the default curves assume as I believe these curves FSEC developed may extrapolate from >50% PLR manufacturer's data. There is a question whether the units cycle or continue to turn down, but in either case the curve we believe is not representative. Very tough to get part load data from manufacturer's. Has anyone else overcome the limitations of manufacturer's data. The efficiencies promise a lot for small commercial and multi-unit residential buildings yet we have relatively such poor base data ...<div>Regards,</div><div>Graham<br><div> <br><div><div>On 20/08/2012, at 12:08 AM, Bereket Nigusse wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font: inherit;">Sheelam,<br><br>You may use the variable refrigerant flow (<span class="yshortcuts" id="lw_1345385231_0">VRF</span>, VRV) example file that comes with the <span class="yshortcuts" id="lw_1345385231_1">EnergyPlus</span> install. This example demonstrates the use of five terminal units (Indoor Coils) connected to a single outdoor unit; each zone served with one terminal unit. Currently, EnergyPlus has a heat pump VRF system, i.e., it runs in either cooling-only or heating-only mode. For further information refer to the EnergyPlus documentations.<br><br>VariableRefrigerantFlow_5Zone.idf<br><br>The VRF HVAC model is available in V7.0 and 7.1 EnergyPlus versions only.<br><br>Bereket Nigusse<br>Florida Solar Energy Center<br><br>--- On <b>Sun, 8/19/12, Sheelam Khare <i><<a href="mailto:sheelamkhare26@gmail.com">sheelamkhare26@gmail.com</a>></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Sheelam Khare <<a href="mailto:sheelamkhare26@gmail.com">sheelamkhare26@gmail.com</a>><br>Subject: [Bldg-sim] Regarding VRV designing in Energy Plus.....<br>To: <a href="mailto:Bldg-sim@lists.onebuilding.org">Bldg-sim@lists.onebuilding.org</a><br>Date: Sunday, August 19, 2012, 5:02 AM<br><br><div id="yiv1241472640">Hello All..<br>I am working on the Educational Institute Building project using Energy plus simulation software. In this, I am trying to apply VRV system at the building .<br>Please suggest me how to design the VRV system in Energy plus software.<br> <br>Sheelam Khare.....<br> </div><br>-----Inline Attachment Follows-----<br><br><div class="plainMail">_______________________________________________<br>Bldg-sim mailing list<br><a href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a><br>To unsubscribe from this mailing list send a blank message to <a ymailto="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" href="/mc/compose?to=BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG">BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</a><br></div></blockquote></td></tr></tbody></table>_______________________________________________<br>Bldg-sim mailing list<br><a href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a><br>To unsubscribe from this mailing list send a blank message to BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG<br></blockquote></div><br></div></div></body></html>