As David says, control can be achieved
by external control. But there is also another option to avoid short run
periods avoiding programming. In this case, you could use a type 2 controller.
this controller provides a histeresis-type control so short run periods
could be avoided with the appropiate histeresis parameters.
Best Regards
--------------------------------------------------------------------------
Roberto Garay Martinez
Labein-Tecnalia
Unidad de Construcción y Desarrollo del Territorio
c/Geldo. Parque Tecnológico de Bizkaia
Edificio 700
48160 Derio (Bizkaia)
Tel.: 34 94 607 33 00
Fax: 34 94 607 33 49
www.labein.es
---------------------------------------------------------------------------
Visite nuestro blog:
http://www.energiaenedificacion.com
------------------------------------------------------------------------
Bilbao, 17-19 de Mayo, 2010
Open and Sustainable Building
Edificación Adaptable y Sostenible
www.OpenBuilding-2010.org
--------------------------------------------------------------------------
----- Mensaje de michel
te <michel_39@live.fr> en Fri, 9 Apr 2010 16:58:33 +0200 -----
Para:
brad trnsys <bradley@tess-inc.com>, user trnsys
<trnsys-users@cae.wisc.edu>
Asunto:
[TRNSYS-users] trnsys
Hello,
I would like to have an information about the use of water to water heat
pump type 668 from tess and all trnsys and tess heat pumps generally.
How can I set a minimum time value of run and a minimum time value of stand-off
to prevent short cycle.
Best regards
Michel PAUL