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<p class=MsoNormal><span style='color:#1F497D'>Previous posts have indicated
that it’s in development, but the release forecast is to be determined. Speculation
ranges from Q4 2009 to Q4 2010, so we’ll have to wait and see. The two major roadblocks
I see for VRF getting into public software are:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='margin-left:56.25pt;text-indent:-.25in;
mso-list:l0 level1 lfo1'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>Lack of a rating
system for all capacities: ARI-210/240 was not expanded to rate low-capacity VRF
systems until 2008, and it is my understanding that an ARI standard for larger-capacity
(over 6 tons) VRF systems is still pending. I don’t see the DOE granting money
for simulation development without a recognized rating system. Once one is
approved, I would expect the development and testing to take the better part of
a year, possibly longer.<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:56.25pt;text-indent:-.25in;
mso-list:l0 level1 lfo1'><![if !supportLists]><span style='color:#1F497D'><span
style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='color:#1F497D'>Funding: the
manufacturers seem willing to pay for development, but in the interest of
neutrality, developers of public software seem reluctant to accept. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>For what it’s worth, we recently
purchased EnergyPro specifically for VRF systems, and I was fortunate enough to
attend a training session at Daikin with several of their sales engineers. The
word was that Daikin (and I would assume Mitsubishi) is aggressively trying to
get its products incorporated into various modeling packages. In fact, it’s a
major hurdle they need to overcome in order to grow their market share. The proprietary
software developers have been much more receptive to working with the VRF manufacturers
and accepting financial support for the development costs. Daikin has produced
several libraries of performance curves for their products, so much of the
legwork has been done from a data-gathering perspective. In fact, if you want
to approximate a Daikin product in eQUEST, the info needed to create custom
curves is readily available. I would recommend that route over purchasing
proprietary software. If you’re considering EnergyPro and want a full opinion,
feel free to contact me directly. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";
text-transform:uppercase'><o:p> </o:p></span></p>
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width=71 height=90 src="cid:image003.jpg@01CA6D69.9A840F20" v:shapes="Picture_x0020_2"></span><![endif]><b><span
style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif"'> DAKOTA
KELLEY</span></b><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif"'> </span><span
style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif"'> </span><b><span
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style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif"'>Project
Designer<o:p></o:p></span></p>
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3535 Travis St. Suite 115 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif"'><a
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TX 75204 <o:p></o:p></span></p>
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color:#3333FF'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";
color:#3333FF'>| MEP ENGINEERING </span><span style='font-size:8.0pt;
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<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> Jeff Ross-Bain
[mailto:jross-bain@rbgreenbuilding.com] <br>
<b>Sent:</b> Monday, November 23, 2009 2:16 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] eQUEST and Variable Refrigerant Flow<o:p></o:p></span></p>
</div>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Hi All,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Does anyone know if eQUEST is planning to develop a means for
modeling VRF systems? To the best of my knowledge, only EnergyPro and recently,
Trane Trace, are able to capture the performance characteristics of these
system types.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><strong><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Jeffrey
G Ross-Bain, PE, LEED</span></strong><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Ross-Bain
Green Building, LLC</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>404-228-2893</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:18.0pt;font-family:Webdings;
color:green'>P</span><span lang=EN-GB> </span><span lang=EN-GB
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:green'>Build
Green...Save Time</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <span style='font-size:10.0pt'> <o:p></o:p></span></p>
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