Distance requirements between natural smoke exhaust window shaft and mechanical air supply shaft in stairwell

According to the fire protection code, the outdoor air inlets of the mechanical pressurized air supply system and the smoke exhaust air supply system should be arranged below the outdoor smoke exhaust port, and the height difference should not be less than 3.0m when horizontally arranged, and the horizontal distance should not be less than 10m.

According to what you said, you should open the natural smoke exhaust window in the stairwell as high as possible. If there is more than one staircase, you can also cancel the window of the first staircase or set it as a fixed window (that is, you can't open it); Then, just open the louver of the air supply shaft as low as possible. Finally, to take a step back, even if the height difference between them is less than 3.0m, about 2.0m is barely acceptable, because the word in the specification is "appropriate" and not necessary. Of course, it is best to meet the requirement of 3.0 meters.

Finally, the understanding behind you is definitely unreasonable, so I won't explain it here.