Controlled residential ventilation - Planning the positions for supply air / exhaust air

Hello everyone,

the planning for our semi-detached house is becoming more concrete. Now we need to determine the positions of the outlets for the central controlled residential ventilation.

I have read quite a bit on the topic and tried to take the usual best practices into account. Nevertheless, one is initially overwhelmed and a bit uncertain. Therefore, I would be glad if you could take a look with your experience.

In general, everything is initially planned as a ceiling outlet. However, the concept of displacement ventilation also makes some sense to me, so wall outlets near the floor for the supply air might also be an option. What do you think?

Yellow points = exhaust air
Red points = supply air
Blue points = alternative supply air (as a possible different position for the same room instead of the red point)

Ground floor:

[*]The indicated additional desk in the office would ultimately not be there.
[*]I am unsure whether the supply air in the hallway should preferably be near the front door or not.

Upper floor:

[*]The alternative position of the supply air is also meant to cover the hallway area a bit better. Or is that not relevant and is it more important that air flows directly into the dining/living room?
[*]Would it be better here to choose 2 outlets for the large living and dining area to minimize noise?

Attic:

[*]The children's rooms give me some headaches because it is very difficult to predict exactly now how the furniture will be arranged.
[*]In the slightly larger children's room, I am also not yet clear about the positioning of the door. It might also be placed all the way to the left (opposite the bedroom door). Then the supply air would of course have to go somewhere else.

Thanks in advance!

Markus

Now we are supposed to determine the positions of the outlets for the central controlled residential ventilation.

That is still the task of a specialist who is familiar with the technology. You don't just "place them anywhere."

Firstly, a professional as YPG already said, after all, you are paying him for it.

I would take 2x supply air in each room, neither supply nor exhaust air in the hallway and pantry.

In the 65 m2 area, I would install supply air 4 times.

I would try to place the supply air on the opposite side of the door.

This was not planned by a professional at all, was it? How do you want to properly remove three times the supply air in the sleeping area compared to one exhaust air on the floor? Living area has far too little supply air, etc.

Are the outlets usually on the floor? Isn't it better to run the cables/pipes up the walls so that the "shafts" are in the walls?

Are the outlets usually on the floor? I

No, that depends, among other things, on the general contractor/controlled residential ventilation. Something like that is planned from the beginning and not "somewhere" where the client thinks they are right, botched.