<div dir="ltr"><p class="MsoNormal" 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);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Hi all Modelers,</span><span style="font-size:12pt;color:rgb(23,55,94)"></span></p>

<p class="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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="MsoNormal" 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>