mundoclima MUPO-H8 Manual De Instalación Y Usuario página 50

Installation
3.Carefully lower the window. Secure the vent panel in place with 4 type B screws,plus
one screw for each extension.
4.Cut the foam seal B(non-adhesive) to the window width. Stuff the foam seal B between
the glass and the window to prevent air and insects from getting into room.
5.Install the security bracket with a type B screw, as shown.
Install the exhaust duct into the window
Remove the unit with the packed exhaust duct next to
the window, and then connect the adaptorB (flat mouth)
of the exhaust duct with the window.(Fig.E)
Screw B
Foam
Seal
50
Fig.E