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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks Erik.
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Now what if it’s a scenario where the room has a minimum airflow requirement (like a lab or an operating room)? I would have thought resetting the supply air
temp would settle the issue. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Also - when I reduce the airflow rates, it still doesn’t behave well – I get cooling temperature setpoints in the winter.
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<p class="MsoNormal" style="line-height:12.0pt"><b><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#E33B45">Vikram Sami</span></b><span style="color:#1F497D"><br>
</span><span style="font-size:7.0pt;font-family:"Futura LT Book";color:#666666">AIA, BEMP, LEED BD+C</span><span style="font-size:9.0pt;font-family:"Futura LT Book";color:black"> </span><span style="color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">Associate Partner</span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt"><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">ZGF ARCHITECTS LLP</span><span style="color:#1F497D"><br>
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</span></b><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">206.521.3509
</span><b><span style="font-size:7.5pt;font-family:"Futura LT Book";color:#E33B45">E
</span></b><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666"><a href="mailto:vikram.sami@zgf.com">vikram.sami@zgf.com</a></span><span style="color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">925 Fourth Avenue, Suite 2400
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<a href="mailto:erik.kolderup@gmail.com">erik.kolderup@gmail.com</a> [<a href="mailto:erik.kolderup@gmail.com">mailto:erik.kolderup@gmail.com</a>]
<b>On Behalf Of </b>Erik Kolderup<br>
<b>Sent:</b> Monday, May 18, 2015 5:06 PM<br>
<b>To:</b> Sami, Vikram<br>
<b>Cc:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Thermostat setpoint quandry<o:p></o:p></span></p>
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<p class="MsoNormal">Vikram,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I suggest checking your minimum airflow schedule ("Annual Schedule Airflow"). Looks like the values are greater than one, resulting in a constant volume system that gets driven to the heating setpoint. If the airflow were allowed to drop
then there would probably be hours at the cooling setpoint. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">Erik<o:p></o:p></p>
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<p class="MsoNormal"><b>Erik Kolderup, PE, LEED AP</b><o:p></o:p></p>
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<p class="MsoNormal"><a href="mailto:erik@kolderupconsulting.com" target="_blank">erik@kolderupconsulting.com</a><span style="color:#999999"> | 415.531.5198 | </span><a href="http://www.kolderupconsulting.com" target="_blank">www.kolderupconsulting.com</a><span style="color:#999999"> </span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, May 18, 2015 at 3:51 PM, Sami, Vikram <<a href="mailto:vikram.sami@zgf.com" target="_blank">vikram.sami@zgf.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m a little stumped here.
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m running a simple single zone VAV simulation that has a setback temperature schedule for heating and cooling seasons. For some reason, if you examine the hourly report, it seems
to use the heating schedule for the entire year (inp file attached).What am I missing?
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Any insight would be much appreciated.
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<b><span style="font-size:9.0pt;font-family:"Futura LT Book";color:#E33B45">Vikram Sami</span></b><br>
<span style="font-size:7.0pt;font-family:"Futura LT Book";color:#666666">AIA, BEMP, LEED BD+C</span><span style="font-size:9.0pt;font-family:"Futura LT Book";color:black"> </span><br>
<span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">Associate Partner</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">ZGF ARCHITECTS LLP</span><br>
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</span></b><a href="mailto:vikram.sami@zgf.com" target="_blank"><span style="font-size:9.0pt;font-family:"Futura LT Book"">vikram.sami@zgf.com</span></a><br>
<span style="font-size:9.0pt;font-family:"Futura LT Book";color:#666666">925 Fourth Avenue, Suite 2400
<br>
Seattle, WA 98104</span><o:p></o:p></p>
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