All Air HVAC Template Issue

Hi All,

I am wondering if anyone else have encountered the below.

I have a model and when I run a simualtion with IdealLoads HVAC template, the total ventilation in the zone is 6ach as specificed in the program.

When I run the same simulation with an All Air HVAC system, the total ventilation is only around 1ach which is approximately 12 l/person (based on the zone’s occupancy). Note that 6ach is the only input in the ventilation program.

Is this a bug, and is there a way to change the minimum ventilation to be as per the program?

I have attached a test file where I can recreate the issue, with screenshots of the different ACHs.

Thanks,
Nala
Test.gh (66.3 KB)