Re: [TRNSYS-users] control signal

[Angel Carrera <angel.carrera@aiguasol.coop>]

Dear Mehrdad,

you better use some thermostat control (like types 108 or 698...you could also use type 2) to determine the heat pump status, instead than a condition based on instant temperatures set in an equation block. You need some dead band for your controller, otherwise the model will crash. Hope it helps, best regards

Angel

2018-08-09 9:20 GMT+02:00 Mehrdad Vojdani via TRNSYS-users <trnsys-users@lists.onebuilding.org>:

Dear TRNSYS users,

I have a problem with controlling type 665 (split heat pump). As you may know, this type uses catalogue data to interpolate and find the right outputs. In the case of extrapolating, a warning will occur. The type would return minimum or maximum output. 

When I set the control signal for the type (Cooling signal or Heating signal) MANUALLY to 1 and ran the simulation, no error or warning occurred. 

But when I try to control the type with some equations, too much warning and finally an error...

I used the equations to set some sort of seasonal thermostat.

I will attach my file (*.tpf *.bui *.tm2). 

Thanks for your help.

Mehrdad 

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

--

Àngel Carrera Martín

Consultor sènior en Sistemes

Llicenciat en ciencies físiques

Sistemes Avançats d'Energia Solar Tèrmica - AIGUASOL

           +(00) 34 663 276 680   Roger de Llúria 29, 3r 2a

angel.carrera@aiguasol.coop   08009 Barcelona

              angel_aiguasol   Tel: (+34) 933 424 755

                              www.aiguasol.coop