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<div>I will give this a crack, as it has been some time since i dealt with this. </div><div><br></div><div>The temperature deadback will be a 5 DegF band between heating and cooling. So your cooling t'stat setting in eQuest day schedule will be, say 75 DegF and heating t'stat at 70 DegF. Between those temps, no cooling or heating should take place.</div><div><br></div><div>Group, it isn't any more complicated than that, correct?</div><div><br></div><div>John</div><div><br></div>
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On Wednesday, September 19, 2018, 2:42:12 AM PDT, equest user via Equest-users <equest-users@lists.onebuilding.org> wrote:
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<div><div id="yiv2517585412"><div dir="ltr"><p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">Hi all Modelers,</span><span style="font-size:12pt;color:rgb(23,55,94);"></span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">I am having a hard time understanding the below statement mentioned
in my country's local guidelines. I assume it is pertaining to 4 pipe AHUs
which goes as follows:</span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><i><span style="font-size:12pt;color:rgb(23,55,94);">“All heating and cooling systems shall be temperature controlled.
Where a unit provides both heating and cooling, controls shall be capable of
providing a </span></i><i><span style="font-size:12pt;color:red;">temperature dead band </span></i><i><span style="font-size:12pt;color:rgb(23,55,94);">of 3 degree Celsius
(5 degree Fahrenheit) within which the supply of heating and cooling energy to
the zone is shutoff or reduced to a minimum."</span></i><span style="font-size:12pt;color:rgb(23,55,94);"></span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 10pt;line-height:115%;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;line-height:115%;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">Can anyone help me what exactly the guideline is referring to as “temperature
dead band” and how can I verify it with my installed system <i>(is it mentioned in AHU datasheets?).</i> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">My system is a 4 pipe units which provides cooling in summer and
heating in winter season.</span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">Eagerly waiting for your suggestions.</span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);"> </span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">Thanks,</span></p>
<p class="yiv2517585412MsoNormal" style="margin:0in 0in 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri, sans-serif;"><span style="font-size:12pt;color:rgb(23,55,94);">Tejas</span></p></div></div>_______________________________________________<br>Equest-users mailing list<br><a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>To unsubscribe from this mailing list send a blank message to <a ymailto="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br></div>
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