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<DIV dir=ltr align=left><SPAN class=657412917-22042009><FONT face=Arial
color=#0000ff size=2>Josh,</FONT></SPAN></DIV>
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<DIV dir=ltr align=left><SPAN class=657412917-22042009><FONT face=Arial
color=#0000ff size=2>I think the program picks up fan heat. So depending
on how you have defined your fans, that will change the miminium temp equest
accepts without errors.</FONT></SPAN></DIV>
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color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=657412917-22042009><FONT face=Arial
color=#0000ff size=2>Linda</FONT></SPAN></DIV>
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Linda Lam, LEED® AP
WSP Flack + Kurtz
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<FONT face=Tahoma size=2><B>From:</B> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Josh
Doherty<BR><B>Sent:</B> Wednesday, April 22, 2009 10:16 AM<BR><B>To:</B>
equest-users@lists.onebuilding.org<BR><B>Subject:</B> [Equest-users] CHW temp
and cooling coil leaving temp<BR></FONT><BR></DIV>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">HI,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am trying to model a VAV system
for cooling and heating. On the cooling side, I specify a 52F CHW loop
temperature and a “Zone Entering Min Supply Temp” of 55F. When I run the
simulation I get an error that states “cooling coil leaving temperature must be
at least 6F higher than entering water temp”. I played with adjusting the
“Zone Entering Min Supply Temp” to see what minimum value would work without
errors and the lucky number was 61F. I am trying to figure out why this is
the minimum temperature eQuest accepts without errors. The 61F is 9F
higher than the entering water temperature and not 6F like the error
states. Any ideas what is going on? Thanks so much for your help and
insight.<o:p></o:p></SPAN></FONT></P>
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style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><STRONG><B><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">Josh Doherty</SPAN></FONT></B></STRONG><o:p></o:p></P>
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style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
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style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
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style="FONT-SIZE: 12pt"> </SPAN><o:p></o:p></FONT></P>
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