[TRNSYS-users] Type 665

[David Bradley]

Arnaud,
In addition to Francois' comment, I am not sure how you are modeling the 
building but if you are using Type56, make sure that you have set the 
zone thermal capacitance to a realistic value. The thermal capacitance 
defaults to 1.2 times the zone air volume, which takes into account only 
the capacitance of the air in the zone. It neglects the capacitance of 
furniture and fixtures. Typically, a value of about 5 to 10 times the 
default is used. Changing that will result in a lot less oscillation for 
your controller because the zone will respond more slowly (and more 
realistically) to the heat pump.
Kind regards,
 David

A.Thome-08 at student.lboro.ac.uk wrote:
> Good morning everyone,
>
> I connected Type 665 ( air/air heat pump) to the ventilation of type56.
> However, I don't manage to control properly the Heat pump.
>
> At the moment, the heat pump is control by a type 2 component. But it seems
> that there is a problem of information transmission between the heat pump
> and the controller.
>
> Enclosed, a file where it can be seen the controller setting and the heat
> pump working.
>
> Is it the best solution to connect the heat pump to the ventilation? Should
> I use the gains instead?
>
> Best regards,
>
> Arnaud.
>   
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Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      22 N. Carroll Street - Suite 370 
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