<div dir="ltr"><div><div>Hi,<br><br></div>can you rephrase your question. The answer is probably easier than getting the point of your higher lower than-part <br><br></div>leen<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 5 February 2017 at 20:33, ahmad abbasian via TRNSYS-users <span dir="ltr"><<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




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<p>Dear All</p>
<p>in a differential controller what is the upper dead band? I know that when the difference of  Th and Tl is lower than "lower dead band temperature" the controller will actand , for example , the pump will be turned off. but for the difference higher lower
 than "upper dead band" and also higher than it, the pump is turned on !</p>
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<p>Thank you</p>
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Ahmad abbasianzadeh</div>
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Solar energy Researcher</div>
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Pensylvania</div>
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