<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt">Custom curves will show more energy savings. Let me know the make and model. I might have the data you need.<br><br>If I remember correctly the custom curves show somewhere around a 3% VRF savings over the PVVT curves depending on the outside ambient conditions of the project.<br><div> </div>Paul Diglio, CEM, CBCP<br><br><div>87 Fairmont Avenue<br>New Haven, CT 06513<br>203-415-0082</div><br><br><div><span><a target="_blank" href="http://www.pdigliollc.com">www.pdigliollc.com</a></span><div><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Gastón Michaud F.
<gaston.michaud@cts-cr.com><br><b><span style="font-weight: bold;">To:</span></b> Paul Diglio <paul.diglio@sbcglobal.net>; "equest-users@lists.onebuilding.org" <equest-users@lists.onebuilding.org><br><b><span style="font-weight: bold;">Sent:</span></b> Mon, November 26, 2012 6:39:37 PM<br><b><span style="font-weight: bold;">Subject:</span></b> RE: [Equest-users] VRF in eQuest and LEED<br></font><br>
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<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US">Thank you Paul for your response.</span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US">I did not model custom curves, I understand that if a use the PVVT system and set the compressor to variable speed, there is no need to modify them; am I correct? If that is the case, I’ll try to
model the custom performance curves; I was just trying to avoid that since I haven’t been able to get the manufacturer information…</span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US">Do you think the LEED reviewers would accept this approximation without the custom curves? I’ve read before that not using the curves gives a conservative result, which I am willing to accept.
</span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US">Thanks!</span></p>
<p class="MsoNormal"><span style="color:#1F497D;" lang="EN-US"> </span></p>
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</span></b><b><span style="font-size:10.0pt;line-height:150%;color:#1F497D;" lang="ES-CR">Ing. Gastón Michaud F.
</span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D;"> Tel.: (506) 2222-7529</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D;"> Fax: (506) 2256-5608</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D;"> From USA: 1-305-433-3668</span><span style="font-size:12.0pt;color:#1F497D;"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D;">
</span><span style="font-size:7.5pt;color:#1F497D;">Calle 30, Avenida 0 y 2. San José, Costa Rica</span><span style="font-size:7.5pt;color:#1F497D;"></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;" lang="EN-US">From:</span></b><span style="font-size:10.0pt;" lang="EN-US"> Paul Diglio [mailto:paul.diglio@sbcglobal.net]
<br>
<b>Sent:</b> Monday, November 26, 2012 5:10 PM<br>
<b>To:</b> Gastón Michaud F.; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] VRF in eQuest and LEED</span></p>
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<p class="MsoNormal"> </p>
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<p class="MsoNormal">Hello:<br>
<br>
I have submitted projects to LEED using the same methodology without any problems. Did you model custom performance curves?<br>
<br>
Perhaps you explanation was not clear?</p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;">Paul Diglio, CEM, CBCP</p>
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<p class="MsoNormal">87 Fairmont Avenue<br>
New Haven, CT 06513<br>
203-415-0082</p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt;"> </p>
<div>
<p class="MsoNormal"><a rel="nofollow" target="_blank" href="http://www.pdigliollc.com">www.pdigliollc.com</a></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> Gastón Michaud F. <gaston.michaud@cts-cr.com><br>
<b>To:</b> "equest-users@lists.onebuilding.org" <equest-users@lists.onebuilding.org><br>
<b>Sent:</b> Mon, November 26, 2012 5:31:19 PM<br>
<b>Subject:</b> [Equest-users] VRF in eQuest and LEED</span><span style="font-size:12.0pt;"></span></p>
<div>
<p class="MsoNormal">Hello everyone, </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US">We are applying for a LEED certification in a project which includes a VRF system in several areas. In order to model such system, we followed the methodology described in the document “Energy Trust of Oregon”; and submitted
an explanation to the LEED reviewers describing each step taken in eQuest. We got the following review comment:</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:#444444;letter-spacing:.25pt;" lang="EN-US">“The simulation software used is not capable of modeling VRF systems. The project team has not provided information describing how the VRF systems performance
has been modeled to reflect the actual design. Please provide a narrative and any supporting documentation demonstrating that the VRF system characteristics have accurately modeled.”</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:#444444;letter-spacing:.25pt;" lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Has anyone had any similar issue regarding a LEED project? After reading their comment, it seems that they might have overlooked our explanation, or maybe it was just not enough. Any ideas? Does LEED accepts this approximation?
Thank you very much! </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
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<p class="MsoNormal" style="line-height:150%;"><b><span style="font-size:10.0pt;line-height:150%;" lang="EN-US"> Ing. Gastón Michaud F.
</span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;" lang="EN-US"> Tel.: (506) 2222-7529</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;" lang="EN-US"> Fax: (506) 2256-5608</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;" lang="EN-US"> From USA: 1-305-433-3668</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;" lang="EN-US"> </span><span style="font-size:7.5pt;" lang="EN-US">Calle 30, Avenida 0 y 2.
</span><span style="font-size:7.5pt;">San José, Costa Rica</span></p>
</td>
<td style="width:271.6pt;padding:0in 5.4pt 0in 5.4pt;" valign="top" width="362">
<p class="MsoNormal" style="line-height:150%;"><b><span style="font-size:8.0pt;line-height:150%;"><img id="Picture_x0020_1" src="cid:3.1509912983@web181101.mail.ne1.yahoo.com" alt="Description: Description: Description: Description: LEEDAP_BDCbw" border="0" height="80" width="71"></span></b></p>
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