Re: [TRNSYS-users] what is the upper dead band in controller ?

[ahmad abbasian via TRNSYS-users <trnsys-users@lists.onebuilding.org>]

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 ? 

 

..............................................................................................

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

On 5 February 2017 at 20:33, ahmad abbasian via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:

Dear All

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 !

Thank you

..............................................................................................

Ahmad abbasianzadeh

Solar energy Researcher

Pensylvania

 

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@lists.onebuilding.org
http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org