Controlled residential ventilation: positioning of supply and exhaust air in my designs

I see in the HAR DD, but no BD in the bathroom above (?)
Do blue/red stand for cold/warm or arterial/venous?

Just don’t have 1000 thoughts about the ideal (optical) position of the ceiling outlets only to realize that you forgot the smoke detectors in the planning

Or WLAN access points

I see DD in the HAR, but not BD in the bathroom above (?)

Which DD do you mean exactly?

What do you say about the controlled residential ventilation planning?

Yes, I also find smoke detectors ugly, and then those WLAN things as I recently learned in my thread. The ceiling is really cluttered. Not exactly beautiful.

Which DD do you mean exactly?

Two DDs in red and blue each with a diameter of 215 and one blue with a diameter of 125.

Do I need to arrange this?
In the bathrooms above, exhaust air is marked in blue in the wall.
Would you ask about that?

Regarding the position, I would rather rely on the specialist planning, but I would pay close attention to the connection of the valves and the air flows.

I personally would not have wanted floor outlets. That would limit my furniture arrangement again.

Therefore, they usually end up by the window, since you rarely place a large piece of furniture like a wardrobe, bed, or sofa there.