[TRNSYS-users] Warning with type 166

[David BRADLEY]

Habiba,

Trnsys has three levels of notifications. A "notice" is for information 
only, a "warning" may be a potential problem, and a "fatal" stops the 
simulation. In this case you're getting a warning so you have to 
determine if it is something of concern or not. Because the controller 
is not getting stuck at all there is nothing that you need to do. If the 
warning were telling you that the controller was stuck (i.e. it reached 
its max allowable number of state changes in a given timestep) some 
significant percentage of the simulation (5 or 10% of the time, for 
example) then you might want to look at why it was happening. Perhaps 
the timestep is too short or perhaps the equipment is oversized for the 
space it serves. Again, in your case, there is no problem at all.

kind regards,

  David


On 08/18/2021 02:48, Habiba Aly via TRNSYS-users wrote:
> Hello TRNSYS users,
>
> I am a beginner at TRNSYS. I am trying to run a simulation of a 
> packaged terminal air conditioner system in a residential building. 
> The problem is whenever I run the simulation I get the message that 
> time elapsed is 0. I also get a warning that says "controller type 166 
> was stuck 0 percent of the time during simulation". I don't understand 
> what is happening and how to fix this problem. Attached is my TRNSYS 
> studio file
>
> Thank you,
>
> Habiba Aly
> Research Assistant |Mechanical Engineering Department
> The American University in Cairo
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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