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Safwan,<br>
I'd recommend you read the 04-MathematicalReference.pdf entry
concerning Type108 if you are confused and have not already done so.
Type108 is a very simple on/off controller with hysteresis. A
cooling signal will turn on if the monitored temperature rises above
the cooling set point plus half the deadband temperature difference.
The signal will turn off if the monitored temperature falls to the
cooling setpoint minus half the deadband.<br>
regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 2/8/2015 15:16, Safwan Kanan wrote:<br>
</div>
<blockquote
cite="mid:879391131.1572153.1423430165815.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica
Neue, Helvetica, Arial, Lucida Grande,
sans-serif;font-size:16px">
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70847" dir="ltr">
<div id="yui_3_16_0_1_1423426569080_33512" dir="ltr">Dear All,</div>
<div id="yui_3_16_0_1_1423426569080_33511" dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1423426569080_33510">I am quite confused
about using Type 108 for control building, pumps, chiller
and fan, I want to know what are the best values or ranges
for monitoring temperature, 1st stage cooling set point and
temperature dead band. I tried different values and I got
different results. So could you advice me in this issue.</div>
</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70929" dir="ltr"><br
style="" class="">
</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70930" dir="ltr">I
am looking to hearing from you soon.</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70931" dir="ltr"><br
style="" class="">
</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70932" dir="ltr">Safwan
Kanan</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70933" dir="ltr">Manchester
University</div>
<div style="" class=""
id="yiv1525385395yui_3_16_0_1_1423170594963_70955" dir="ltr">M13
9PL</div>
UK
<div style="" class="" id="yui_3_16_0_1_1423426569080_33466"><br
style="" class="">
</div>
</div>
<br>
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<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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