Question-and-Answer Resource for the Building Energy Modeling Community

Get started with the Help page

Revision history [back]

How to turn on the AHU during unoccupied hours?

I am trying to model an office building in EnergyPlus in which AHUs and CHW flow are off during unoccupied hours and they only become On only in case the zones temperature are going above 80 F. (in real building the CHW flow goes ON and OFF, sometimes it is zero)

The AvailabilityManager:NightCycle does not work properly. I do not know the reason (Please help if anyone know how to make it run). So I have to turn ON all the AHUs,Fan and every thing during Unoccupied hours. Is there any other way to avoid that? is there any function of controlling (shutting on/off) CHW and AHUs based on the room temperature in E+?

Do I need to use EMS?

Thanks,

How to turn on the AHU during unoccupied hours?

I am trying to model an office building in EnergyPlus in which AHUs and CHW flow are off during unoccupied hours and they only become On only in case the zones temperature are going above 80 F. (in real building the CHW flow goes ON and OFF, sometimes it is zero)

The AvailabilityManager:NightCycle does not work properly. I do not know the reason (Please help if anyone know how to make it run). So I have to turn ON all the AHUs,Fan and every thing during Unoccupied hours. Is there any other way to avoid that? is there any function of controlling (shutting on/off) CHW and AHUs based on the room temperature in E+?

Do I need to use EMS?

Thanks,

Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The Unmet Hours and Big Ladder names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the Creative Commons Attribution Share Alike 3.0 License.

Powered by