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<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2>Thanks Vikram and Carol,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2>After increase reheat delta T(default is 30F,increase
to 45 or 50) ,throttling range and even size ratio, it's back to
normal, thanks for your help!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2>But I wonder why this happen after switch software
version?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=769353707-06092010><FONT face=Arial
color=#0000ff size=2>Kevin</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=zh-cn dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=宋体 size=2><B>发件人:</B> Carol Gardner [mailto:cmg750@gmail.com]
<BR><B>发送时间:</B> 2010年9月2日 22:37<BR><B>收件人:</B> Sami, Vikram<BR><B>抄送:</B>
(equest-users@lists.onebuilding.org); Tang, Kevin<BR><B>主题:</B> Re:
[Equest-users] "Insufficient heating warnings" in 3.64<BR></FONT><BR></DIV>
<DIV></DIV>It sounds like you need to specify a thermostat type of reverse
action. I would also increase the throttling range to 6. Look in the
documentation for a discussion regarding VAV, thermostats and throttling range
or look in the archives.<BR><BR>Carol<BR><BR>
<DIV class=gmail_quote>On Thu, Sep 2, 2010 at 7:24 AM, Sami, Vikram <SPAN
dir=ltr><<A
href="mailto:Vikram.Sami@perkinswill.com">Vikram.Sami@perkinswill.com</A>></SPAN>
wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV lang=EN-US vlink="purple" link="blue">
<DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: rgb(31,73,125)">What
is your reheat delta T?</SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: rgb(31,73,125)"></SPAN> </P>
<DIV>
<P class=MsoNormal><B><SPAN style="FONT-SIZE: 9pt; COLOR: gray">Vikram
Sami</SPAN></B><SPAN style="FONT-SIZE: 9pt; COLOR: gray">, LEED AP</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: gray">Sustainable
Design Analyst</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: gray">1382 Peachtree
St. NE, Atlanta, GA 30309</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 9pt; COLOR: gray">t:
404-443-7462 f: </SPAN><SPAN lang=ES
style="FONT-SIZE: 9pt; COLOR: gray">404.892.5823 </SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: gray"> e: <A
href="mailto:vikram.sami@perkinswill.com"
target=_blank>vikram.sami@perkinswill.com</A> </SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: rgb(31,73,125)"><A
href="http://www.perkinswill.com/" target=_blank><SPAN
style="FONT-SIZE: 9pt; COLOR: gray; TEXT-DECORATION: none">www.perkinswill.com</SPAN></A></SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: gray"></SPAN></P>
<P class=MsoNormal style="MARGIN-BOTTOM: 3pt"><B><SPAN
style="FONT-SIZE: 9pt; COLOR: gray">Perkins+Will.</SPAN></B><SPAN
style="FONT-SIZE: 9pt; COLOR: gray"> </SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: rgb(173,212,37)">Ideas + buildings that honor
the broader goals of society</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: green"></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: rgb(31,73,125)"></SPAN> </P></DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: rgb(31,73,125)"></SPAN> </P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: rgb(181,196,223) 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt"> <A
href="mailto:equest-users-bounces@lists.onebuilding.org"
target=_blank>equest-users-bounces@lists.onebuilding.org</A> [mailto:<A
href="mailto:equest-users-bounces@lists.onebuilding.org"
target=_blank>equest-users-bounces@lists.onebuilding.org</A>] <B>On Behalf Of
</B>Tang, Kevin<BR><B>Sent:</B> Thursday, September 02, 2010 6:09
AM<BR><B>To:</B> (<A href="mailto:equest-users@lists.onebuilding.org"
target=_blank>equest-users@lists.onebuilding.org</A>)<BR><B>Subject:</B>
[Equest-users] "Insufficient heating warnings" in 3.64</SPAN></P></DIV></DIV>
<DIV>
<DIV></DIV>
<DIV class=h5>
<P class=MsoNormal> </P>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN>Dear all,</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN>I have a LEED model, after switched the version into
v3.64 from v3.63, a lot of insufficient heating warnings like below are
reported, the percent of hours outside throttling range is also
rise, while the model has been adjusted to no warnings and within
300hours in v3.63, it's a VAV system with electric cooling in
summer and purchased heat in winter.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">**WARNING**********************************************************************</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
ZONE E21 North Perim Zn (G.N1)
</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
might have insufficient heating capability.</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
Check that the SYSTEM or ZONE HEATING-CAPACITY plus
this</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
ZONEs BASEBOARD-RATING is adequate to maintain the
ZONE</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
specified DESIGN-HEAT-T for the calculated peak ZONE
load</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
(see LS-A or LS-B for the ZONE peak load.)</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'"></SPAN><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
ZONE E21 North Perim Zn (G.N1) has a
THERMOSTAT-TYPE</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
of REVERSE-ACTION, which, when added to the issues
listed</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'">
in the messages above, will cause excessive
underheating.</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Courier New'"></SPAN><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN>I noticed both No.33 and No.46 in file <A
href="http://doe2.com/download/DOE-22/Bugfixes-047h.pdf"
target=_blank><I><SPAN
style="FONT-FAMILY: SimSun">Bugfixes-047h.pdf</SPAN></I></A></SPAN><SPAN
style="FONT-FAMILY: SimSun"> </SPAN><SPAN>mentioned there are enhancements for
"insufficient heating capability" in V3.64, I tried increasing "heat sizing
ratio" and "throttle range", but failed, can anyone give me some guidance to
fix this issue ? I wish can benefit from soem new features in
v3.64, but it's close to the end of project, there is little space to
play.</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN>Thanks in advance for your help!</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN style="COLOR: blue">Best
Regards</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN style="COLOR: blue">Kevin
Tang</SPAN><SPAN></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN>Project Engineer | Energy Solution | Owens Corning
China</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN>Tel: 8621-6101 9622 | Fax 8621- 6101 9588
</SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN><A href="mailto:Kevin.tang@owenscorning.com"
target=_blank>Kevin.tang@owenscorning.com</A></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN></SPAN> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt"></SPAN><SPAN></SPAN> </P></DIV>
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