[TRNSYS-users] night ventilation, type8b

[Mariëlle Nuchelmans]

Thanks David, type 108 works fine!

Best,

Mariëlle Nuchelmans
________________________________
________________________________
Van: David Bradley [mailto:bradley at tess-inc.com]
Verzonden: donderdag 15 april 2010 16:44
Aan: Mariëlle Nuchelmans
CC: trnsys-users at cae.wisc.edu
Onderwerp: Re: [TRNSYS-users] night ventilation, type8b

Mariëlle,
  I would recommend trying with Type108 instead of Type8. You can use the 1st stage cooling setpoint as your night ventilation. You may also want to multiply the Type108 output by the result of another equation to make sure that night ventilation isn't activated during the daytime.
Best,
 david


Mariëlle Nuchelmans wrote:
Hi all,

I want to model a nightventilation system with following setpoints:

Switch on when roomtemperature is 23 degrees, switch off when roomtemperature is below 19 (hysteresis)

I use type8b. But it only gives a coolsignal when I set the deadband on 0 degrees, but I should set it on 4 degrees. But then I never get a coolsignal. What am I doing wrong?

Met vriendelijke groet,

Mariëlle Nuchelmans







________________________________






_______________________________________________

TRNSYS-users mailing list

TRNSYS-users at cae.wisc.edu<mailto:TRNSYS-users at cae.wisc.edu>

https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users





--

***********************************************************************

Thermal Energy System Specialists (TESS), LLC

David BRADLEY                      22 N. Carroll Street - Suite 370

Partner                            Madison, WI 53703

                                   USA

P: +1.608.274.2577

F: +1.608.278.1475

E-mail: bradley at tess-inc.com<mailto:bradley at tess-inc.com>

Web Pages:  http://www.tess-inc.com    and      http://www.trnsys.com



***********************************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20100416/05068c40/attachment-0001.htm>