Extract fan in naturally ventilated building

[brg]

Hi

I have a naturally ventilated building but I need to put an extract fan in the k*****n for exhaust.

What I have done is tick the mechanical exhaust in the Room Data System Tab and input the exhaust rate.

1. Do i need to set any other settings for the extract fan?

2. Also, how do i set the profile for the operation of the exhaust? or does IES assume the same profile as the system outside air?


Would really appreciate somebody's input on this.

Thanks a lot