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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Dear eQuest users, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I am having some difficulty with a project I am working on, and I was
hoping I could receive some help or any information on a building a with
packaged single zone units with DX cooling and hot water coils for heating, with
a VFD to vary the supply flow (there are no VAV boxes in the system, and the supply
reacts to overall building pressure rather than specific zonal needs determined
by pressure sensors in the ductwork). There is no reheat in the
system either. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>It is a LEED for schools project where the simulation of the proposed
model shows very high unmet loads for heating and the total energy consumption
for space heating is 199 MBTU which is unrealistically low as compared to the
baseline model space heating which is 6369 MBTU. We do not see many unmet
hours in the control zone, but since the unit supplies many zones, we are
getting very high unmet heating hours in non-control zone spaces. We are
seeing on the order of 4000-5000 hours unmet in many zones.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I have modeled the heating for all zones by specifying the <o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>Heat Source</span></font></b> as hot
water loop, <o:p></o:p></p>
<p class=MsoNormal><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>The Zone Heat Source</span></font></b>
is not installed, as the design has no reheat. <o:p></o:p></p>
<p class=MsoNormal><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>Zone</span></font></b> <b><span
style='font-weight:bold'>entering maximum supply temperature</span></b> is at
110 degrees. <o:p></o:p></p>
<p class=MsoNormal><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>Hot</span></font></b> <b><span
style='font-weight:bold'>deck max leaving temp</span></b> is 80 degrees<o:p></o:p></p>
<p class=MsoNormal><b><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold'>Reheat delta T</span></font></b>: n/a<o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Many thanks in advance, <o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=1 color="#009e49" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#009E49;font-weight:bold'>Adam
A. Gonthier</span></font></b><o:p></o:p></p>
<p class=MsoNormal><em><b><i><font size=1 color="#009e49" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#009E49;font-weight:bold'>Energy
Engineer</span></font></i></b></em><b><i><font size=1 color="#009e49"
face=Arial><span style='font-size:9.0pt;font-family:Arial;color:#009E49;
font-weight:bold;font-style:italic'><br>
</span></font></i></b><font size=1 color="#827f78" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#827F78'>Horizon Engineering Associates,
LLP</span></font><font size=1 face=Arial><span style='font-size:9.0pt;
font-family:Arial'><ns0:PostalCode w:insAuthor="agonthier"
w:insDate="2010-07-29T16:10:00Z" w:endInsAuthor="agonthier"
w:endInsDate="2010-07-29T16:10:00Z"><font color="#009e49"><span
style='color:#009E49'><br>
</span></font></ns0:PostalCode></span></font><font size=1 color="#827f78"
face=Arial><span lang=FR style='font-size:9.0pt;font-family:Arial;color:#827F78'>347.297.9005</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'><a
href="http://www.horizon-engineering.com/"
title="http://www.horizon-engineering.com/"><font size=1 color="#009e49"
title="http://www.horizon-engineering.com/"><span
title="http://www.horizon-engineering.com/"><span
title="http://www.horizon-engineering.com/"><span lang=FR style='font-size:
9.0pt;color:#009E49'>www.horizon-engineering.com</span></span></span></font></a></span></font><font
size=1 color="#009e49" face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:#009E49'><br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Demand a Higher Standard</span></i><br>
</b></span></font><font size=2 color=green face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:green'><a href="blocked::http://www.P"
title="blocked::http://www.P
http://www.p/"><font size=1 color=green
face=Webdings title="blocked::http://www.P"><span title="blocked::http://www.P"><span
title="blocked::http://www.P"><span style='font-size:7.5pt;font-family:Webdings;
color:green'><span title="blocked::http://www.P
http://www.p/">P</span></span></span></font></span></a></span></font><b><font
size=1 color=green face=Arial><span style='font-size:9.0pt;font-family:Arial;
color:green;font-weight:bold'> </span></font></b><font size=1 color="#009e49"
face=Arial><span style='font-size:7.5pt;font-family:Arial;color:#009E49'> </span></font><font
size=1 color="#009e49" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#009E49'>Please consider the environment before printing this
e-mail</span></font><font size=1 color="#009e49" face="Arial Narrow"><span
style='font-size:9.0pt;font-family:"Arial Narrow";color:#009E49'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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