I have added an internal fan with constant flow, but I have an error:
Warning Comment:Mass Flow is out of Fan curve's range Condition name : Internal Fan 1
I tryied to raise to a very high range pressure but did not help:
I saw a similar post, but seems not working here.
any idea?
Use a volumetric flow rate boundary condition, not a fan.
Internal fans need a fan curve, at the very least you need a maximum flow rate and a stall pressure point.