Turning "cycle on any" on will allow the system to cycle on at night or whenever the fan schedule is set to "0". This will usually get rid of the hours that are out of range when the system starts up.<br>
<br><div class="gmail_quote">On Tue, Jan 20, 2009 at 3:47 PM, James Geers <span dir="ltr"><<a href="mailto:jgeers@sfa-architects.com">jgeers@sfa-architects.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Using "Cycle on Any" does the
trick. Thank you. Will this affect my DCV?</span></font></p><div class="Ih2E3d">
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<p><font color="navy" face="Tahoma" size="4"><span style="font-size: 13.5pt; font-family: Tahoma; color: navy;">James F. Geers</span></font><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy;"></span></font></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">Registered Architect</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">LEED Accredited Professional</span></font></b></p>
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<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">SFA Architects</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">300
West Fourth Street</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">Cincinnati</span></font></b><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">, Ohio 45202</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">513.721.0600</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;">
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<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">513.721.0611 (fax)</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;"></span></font></b></p>
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<p><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;"> Howe, Timothy
[mailto:<a href="mailto:Timothy.Howe@stantec.com" target="_blank">Timothy.Howe@stantec.com</a>] <br>
<b><span style="font-weight: bold;">Sent:</span></b> Tuesday, January 20, 2009
3:28 PM<br>
<b><span style="font-weight: bold;">To:</span></b> James Geers; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> RE: [Equest-users] Hours
outside of throttling range -VAV system</span></font></p>
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<p><font color="blue" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: blue;">Go to: Air-side HVAC System Parameters
-> Fans -> Night Cycle Control -> Select: Cycle on any.</span></font></p>
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<p style="margin-bottom: 12pt;"><b><font face="Arial" size="1"><span style="font-size: 9pt; font-family: Arial; font-weight: bold;">Timothy Howe, MS,
LEED® AP</span></font></b><font face="Arial" size="1"><span style="font-size: 9pt; font-family: Arial;"><br>
Mechanical Engineer</span></font></p>
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<p style="margin-bottom: 12pt;"><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;">
<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><span style="font-weight: bold;">On Behalf Of </span></b>James Geers<br>
<b><span style="font-weight: bold;">Sent:</span></b> Tuesday, January 20, 2009
3:13 PM<br>
<b><span style="font-weight: bold;">To:</span></b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> [Equest-users] Hours
outside of throttling range -VAV system</span></font></p>
<p><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.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Things I have varied but did not solve the problem include:</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<ol style="margin-top: 0in;" start="1" type="1">
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Occupancy schedule</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Heating Design Day Schedule</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Night Setback Temperature</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Boiler Size</span></font> <font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Loop</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">
Capacity</span></font> <font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Pump Size</span></font> <font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Delta T for heating and
Pre-heating coils</span></font> <font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Minimum Outside Air</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Throttling Range </span></font></li>
<li><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Design temperature</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"></span></font></li>
</ol>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p 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.</span></font></p>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p 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.</span></font></p>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p 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.</span></font></p>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p style="margin-left: 0.25in;"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Thank you,</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font color="navy" face="Tahoma" size="4"><span style="font-size: 13.5pt; font-family: Tahoma; color: navy;">James F. Geers</span></font><font face="Tahoma"><span style="font-family: Tahoma;"></span></font></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">Registered Architect</span></font></b><b><font face="Tahoma"><span style="font-family: Tahoma; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">LEED Accredited Professional</span></font></b></p>
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<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">300
West Fourth Street</span></font></b><b><font face="Tahoma"><span style="font-family: Tahoma; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">Cincinnati</span></font></b><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">, Ohio 45202</span></font></b><b><font face="Tahoma"><span style="font-family: Tahoma; font-weight: bold;"></span></font></b></p>
<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">513.721.0600</span></font></b><b><font color="navy" face="Tahoma"><span style="font-family: Tahoma; color: navy; font-weight: bold;">
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<p><b><font color="navy" face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; color: navy; font-weight: bold;">513.721.0611 (fax)</span></font></b><b><font face="Tahoma"><span style="font-family: Tahoma; font-weight: bold;"></span></font></b></p>
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