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<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2>I am going to take a stab at this one. In eQuest, a VAV
system is a Terminal System. Therefore, in the Wizard, the zone level is where
all heating and/or reheating is done (and developed). You have to force a
primary heating source to occur, but this doesn't appear in the Wizard mode,
apparently..</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2>Have you input a Reheat-Delta-T? The temperature of 55 DegF
+ 40 DegF = 95 DegF heating supply temp.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2>I also do NOT find the ability to create a pre heat
coil in the Wizard. I have done it, but am quite sure this was input in the
Detailed Interface Mode. There are MANY eQuest features that become available
(like more SYSTEM-TYPES) in the Detailed Mode.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=281030818-22082007><FONT face=Arial
color=#0000ff size=2>Once you have "cookie cuttered" your building in the
Wizards, switch to the Detailed Mode. There you will find your preheat
coil.</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> BLDG-SIM@gard.com
[mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Zhen Tian<BR><B>Sent:</B>
Wednesday, August 22, 2007 9:49 AM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] eQUEST-System no
heating<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Dear All,</DIV>
<DIV> </DIV>
<DIV>I experienced an issue when I use eQUEST. I model a building in cold
climate with VAV system. In the wizard mode, I found the system heat source is
"not installed". But when I change to electricity, I found the heating enery use
for system heating is zero. I also tried other options, always found that the
system heat source is useless. I found that all the heating goes the zone level.
Based on my understanding, this should not be the real case.</DIV>
<DIV> </DIV>
<DIV>I set the air supply temperature as constant as 55F (around 13 degree C),
zone entering max air tem as 95F. Enen I set the zone entering max air tem as 86
(30 C). The system heating coil still has no load.</DIV>
<DIV> </DIV>
<DIV>Has anyone experience the same problem before and know to to solve this
problem?</DIV>
<DIV> </DIV>
<DIV>Thanks a lot.</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV> </DIV>
<DIV>David</DIV>
<P>
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