ᐅ Vallox ventilation system – question about the air outlet on the exterior wall

Good evening everyone, I have a Vallox ValloPlus and I’m not sure if the air outlet on the exterior wall of the house is connected correctly. The exhaust air is directed downwards. Is the supply air also drawn in there?

I am pretty sure that the exhaust air has to go out through the round opening at the front. The intake should be at the bottom.

Just found this one. In my case, the air is blown out at the bottom, so the wrong grille has been installed.