[TRNSYS-users] ON OFF heat pump

David Bradley bradley at tess-inc.com
Mon Aug 17 13:59:35 PDT 2009


Ludivine,
 I'd recommend that you define an equation in your input file that has a 
value of 1 if the hour of the year (built-in variable "TIME") is less 
than (for example) 2500 or greater than 4500 and zero otherwise. You can 
use the BOOLEAN functions GT() and LT() to accomplish this. The result 
of the equation should be multiplied by the control signal of your Type2 
before being sent to the heat pumps. You could also use Type515 (Heating 
and Cooling Season Scheduler) if you have access to the TESS 
Applications library.
Kind Regards,
 David


Ludivine Fogolin wrote:
> hello,
> I installed a heat pump in my simulation, it works with a floor 
> heating at the ground floor.
> How can I make so that it does not function in summer?
> For the moment considering the inertia of my floor, it turns all the 
> year because I knew to put only one regulation on the fact that it 
> arrète to turn itself when the interior temperature is higher than 
> 22°C (that thanks to a system of the 2b type)
> What would I like to know it is if it is possible to spend the same 
> omment kind of system but this time to say to him that it cannot 
> déclancher if one is between on June 1 and on August 31?
> One also spoke to me to put a computer to make him do it OFF ONE, but 
> I really do not see how!!!!
> Could you say to me how I must make?
> In advance thank you
> Ludivine
>
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Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      22 N. Carroll Street - Suite 370 
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