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<DIV dir=ltr align=left><SPAN class=257371420-20012009><FONT face=Arial
color=#0000ff size=2>Go to: Air-side HVAC System Parameters -> Fans ->
Night Cycle Control -> Select: Cycle on any.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=257371420-20012009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV> </DIV>
<DIV style="FONT-SIZE: 9pt; FONT-FAMILY: Arial" align=left><B>Timothy Howe, MS,
LEED® AP</B><BR>Mechanical Engineer<BR><BR></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<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>James
Geers<BR><B>Sent:</B> Tuesday, January 20, 2009 3:13 PM<BR><B>To:</B>
equest-users@lists.onebuilding.org<BR><B>Subject:</B> [Equest-users] Hours
outside of throttling range -VAV system<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I likewise have been having enormous
trouble reducing the hours outside of the throttling range for my design case
building. In the winter months in the morning I will have multiple
hours outside of the throttling range for multiple zones and this exceeds
300 hours.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Things I have varied but did not
solve the problem include:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<OL style="MARGIN-TOP: 0in" type=1>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Occupancy
schedule<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Heating Design Day
Schedule<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Night Setback
Temperature<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Boiler
Size<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><st1:place
w:st="on"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Loop</SPAN></FONT></st1:place><FONT
face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
Capacity<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Pump
Size<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Delta T for heating
and Pre-heating coils<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Minimum Outside
Air<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Throttling Range
<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Design
temperature<o:p></o:p></SPAN></FONT> </LI></OL>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">At this point I am randomly changing
settings to reduce the amount of hours outside of throttle range, but I would
like to have a more deductive process.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have a suspicion that there was a
setting in the wizard that is overriding my inputs, but that is
conjecture.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">My engineer designed the system in
Trane Trace and oversized it by 25% so the designed heating equipment should be
adequate.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.25in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thank
you,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
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color=navy size=4><SPAN
style="FONT-SIZE: 13.5pt; COLOR: navy; FONT-FAMILY: Tahoma">James F.
Geers</SPAN></FONT><FONT face=Tahoma><SPAN
style="FONT-FAMILY: Tahoma"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><B><FONT
face=Tahoma color=navy size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Tahoma">Registered
Architect</SPAN></FONT></B><B><FONT face=Tahoma><SPAN
style="FONT-WEIGHT: bold; FONT-FAMILY: Tahoma"><o:p></o:p></SPAN></FONT></B></P>
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face=Tahoma color=navy size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Tahoma">LEED
Accredited Professional<o:p></o:p></SPAN></FONT></B></P>
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style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Tahoma">300
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style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Tahoma">Cincinnati</SPAN></FONT></B></st1:City><B><FONT
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<st1:State w:st="on">Ohio</st1:State> <st1:PostalCode
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</SPAN></FONT></B><B><FONT face=Tahoma><SPAN
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