I built my model in Hevacomp but when I try to run CIBSE calc's a prompt shows up "DDB Program Not Available".
Thanks for raising this, could you please attach any screengrab of the error message you are seeing?
Please see attached.
I'm guessing this has occured due to an improper installation. Did you install the software recentley? or it was there and it is happening for all the projects?
I would look forward to your response.
The installation is not recent, I've been using it for many projects. This has just suddenly occured.
Lastly, is it happening for this project only? or for aother ones too? If it is a specific to this project, I might ask you share your project so that we can have a deeper look.