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<p class=MsoNormal>Greetings everyone,<o:p></o:p></p>
<p class=MsoNormal>I was hoping someone could weigh in on this one:<o:p></o:p></p>
<p class=MsoNormal>I’m doing a PRM model for LEED EAc1. My proposed
system is a packaged VVT system for an office building. There are 3 individual
offices and an open office area, each of which has a VVT controller to modulate
the airflow into that zone, all air coming from the one packaged rooftop heat
pump. Appendix G indicates packaged single-zone heat pump as the baseline
system.<o:p></o:p></p>
<p class=MsoNormal>My questions are:<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>If ‘thermal blocks’ or zones need to be the
same in baseline and proposed cases, do I model the office as one zone or four
zones? If one zone, the nature of the VVT controls will not be accurately
modeled. If four zones, the baseline system will not be ‘Single-zone’,
or it will assign 4 heat pumps (one per zone).<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>I am using eQuest, and I just played around in the
wizard with the office modeled as a single zone. When I toggle from ‘Packaged
Single-Zone Heat Pump’ to ‘Packaged VVT’ in ‘system
type’ box, the VVT shows higher space cooling energy and lower fan energy
than PSZHP. I thought it was going to be the other way. I feel like I’m
not understanding this correctly, so if anyone could explain this result to me
briefly, I would appreciate it.<o:p></o:p></p>
<p class=MsoNormal>Thanks in advance for any feedback.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Duke<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img width=50 height=70 id="Picture_x0020_1"
src="cid:image001.jpg@01CA61EF.7A6A3820" alt="Gaia New 4-29-08"><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Duke Graham, PE, LEED<i>® </i>AP<o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;color:#76923C'>Gaia
Development LLC<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt'>4051 Glencoe Ave, Suite 5<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>Marina del Rey, CA 90292<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>p. 310.591.8172<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>f. 310.827.1702<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><a
href="../../Local%20Settings/Temporary%20Internet%20Files/Content.Outlook/WUXQZ3ZP/www.gaiadevelopment.com"><span
style='color:blue'>www.gaiadevelopment.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:Webdings;
color:green'>P </span><span style='font-size:8.5pt;font-family:"Arial","sans-serif";
color:green'>Please consider the trees before printing this email</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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