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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Do you have a value entered at the system
level for Reheat Delta T? This is a pretty easy one to miss that will prevent
your system from having any reheat and can result in very high hours out of
range. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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12.0pt'><img width=498 height=371 id="_x0000_i1030"
src="cid:image001.gif@01C95C32.6CBE49A0"></span></font><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p><b><font size=1 color=black face="Trebuchet MS"><span style='font-size:7.5pt;
font-family:"Trebuchet MS";color:black;font-weight:bold'>Please note my new
e-mail address: <a href="mailto:andrewc@interfaceeng.com">andrewc@interfaceeng.com</a></span></font></b><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p><b><font size=1 color=black face="Trebuchet MS"><span style='font-size:7.5pt;
font-family:"Trebuchet MS";color:black;font-weight:bold'>Andrew Craig, EIT,LEED
AP</span></font></b><b><font size=1 color="#663300" face="Trebuchet MS"><span
style='font-size:7.5pt;font-family:"Trebuchet MS";color:#663300;font-weight:
bold'>/</span></font></b><font size=1 color=black face="Trebuchet MS"><span
style='font-size:7.5pt;font-family:"Trebuchet MS";color:black'> Mechanical
Designer/ Energy Analyst</span></font><font size=1 color=navy
face="Trebuchet MS"><span style='font-size:7.5pt;font-family:"Trebuchet MS";
color:navy'><br>
</span></font><b><font size=1 color="#663300" face="Trebuchet MS"><span
style='font-size:7.5pt;font-family:"Trebuchet MS";color:#663300;font-weight:
bold'>INTERFACE</span></font></b><font size=1 color="#663300"
face="Trebuchet MS"><span style='font-size:7.5pt;font-family:"Trebuchet MS";
color:#663300'> ENGINEERING</span></font><font size=1 color=navy
face="Trebuchet MS"><span style='font-size:7.5pt;font-family:"Trebuchet MS";
color:navy'> <br>
</span></font><b><font size=1 color=black face="Trebuchet MS"><span
style='font-size:7.5pt;font-family:"Trebuchet MS";color:black;font-weight:bold'>direct</span></font></b><font
size=1 color=black face="Trebuchet MS"><span style='font-size:7.5pt;font-family:
"Trebuchet MS";color:black'> 503.382.2696</span></font><font size=1 color=navy
face="Trebuchet MS"><span style='font-size:7.5pt;font-family:"Trebuchet MS";
color:navy'> </span></font><o:p></o:p></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>James Geers<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, December 12, 2008
6:31 AM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] PVAVS System
In Equest - 15,000 hours out side of throttle range</span></font><o:p></o:p></p>
</div>
<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=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am an Architect doing the energy model for a number of two
story schools over 85,000 SF, and using eQuest for LEED energy design and
documentation.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am doing the energy model for LEED compliance and I am modeling
the base case with a Packaged Rooftop Variable Air Volume System to compare
with my VAV system for the design case. I reverse engineered my design
case to modify the mechanical system, but all of the simulations indicate
I have 15,000 hours outside of the throttle range. My hotwater loop has
two boilers and my heating coils are assigned to the loop, but there does not
seem to be any output from the system. The system report summary
indicates that it is not serving any square footage, so I think there is a bug
somewhere. I have fiddled with the <st1:place w:st="on"><st1:PlaceName w:st="on">THROTTLE</st1:PlaceName>
<st1:PlaceType w:st="on">RANGE</st1:PlaceType></st1:place>, HEAT-CONTROL,
COOL-CONTROL, HEAT-SET-T, and MIN-SUPPLY-T after reading various posts
but nothing changes the lack of heat. I’ve also fiddled with
baseboard heat and pre-heat but nothing seems to affect the hours outside
of throttle range. Does anyone have any suggestions?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=4 color=navy face=Tahoma><span style='font-size:13.5pt;font-family:Tahoma;
color:navy'>JG</span></font><b><font face=Tahoma><span style='font-family:Tahoma;
font-weight:bold'><o:p></o:p></span></font></b></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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