There's a great description and picture in the documentation. The pump will turn on when Th-Tl rises above the upper deadband and stay on until Th-Tl falls below the lower deadband.
Jeff / TESS
Sent from my iPhone
Dear Ieen
I know than when the difference of Th and Tl is lower than "Lower dead band" controller sends a control signal. For example, in the following picture which is a differential controller, if the difference of Th and Tl is lower than 2 , the controller will
send the control signal to turn off pump. But when the difference is higher than 5 (Upper dead band dT) and also when the difference is lower than 5 , in both cases , the pump is on. So what is the Upper dead band dT ?
<pastedImage.png>
..............................................................................................
Ahmad abbasianzadeh
Solar energy Researcher
Harrisburg, Pensylvania
From: leen peeters <l.f.r.peeters@gmail.com>
Sent: Sunday, February 5, 2017 9:18:21 AM
To: ahmad abbasian; TRNSYS users mailing list at OneBuilding.org
Subject: Re: [TRNSYS-users] what is the upper dead band in controller ?
Hi,
can you rephrase your question. The answer is probably easier than getting the point of your higher lower than-part
leen
|