So I don't have a window installation and the hose supplied can simply be fitted to the air conditioning system. I then simply hang the hose out of the window and let the air conditioning work. Because the window is still open, the cooling efficiency is of course not the same, but if you lower the roller shutter as far as the hose, the cooling result is more than sufficient.

The hose is approx. 2m long

Hose and device for mounting on the window