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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Rob,<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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It’s slower/more accurate to break it up and put it on the
individual zones, assuming you’re using the standard “dummy zone” approach for
the make up air unit. If you put it on the make up air unit, it will see the
return air from the dummy zone rather than the “real” return air from the
conditioned zones. I am not (consistently) happy with the results, especially when
the ERV is distributed among many zones, but my opinion is that it’s faster
than parsing hourly reports and determining the savings with an exceptional
calculation.<o:p></o:p></span></p>
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style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";
color:black'> DAKOTA KELLEY</span></b><span
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color:black'> </span><span style='font-size:8.0pt;font-family:
"Franklin Gothic Book","sans-serif";color:black'> </span><b><span
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color:black'><o:p></o:p></span></b></p>
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color:black'> </span><span style='font-size:
10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'>Project
Designer<o:p></o:p></span></p>
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color:black'><o:p> </o:p></span></p>
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color:black'><a href="http://www.teliospc.com/"><span style='font-family:"Times New Roman","serif";
color:blue'>http://www.teliospc.com</span></a> 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";
color:black'><a href="mailto:dakotak@teliospc.com"><span style='font-family:
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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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<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"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Rob Hudson
[mailto:rdh4176@gmail.com] <br>
<b>Sent:</b> Tuesday, May 25, 2010 10:33 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] VRF & ENTHALPY WHEEL<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>hey,<br>
So i am creating a VRF system using the methods from that powerpoint that
people posted not too long ago. i have all my zones and systems almost
ready, and i was wondering if people think that it would be easier/more
accurate to put the enthalpy wheel on the make up air unit or the individual
heat pump zones? <br clear=all>
<br>
-- <br>
Rob Hudson<o:p></o:p></p>
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