27
Once adapted the length of the recessed duct (6) to the exact thickness of the wall, put the
external wall- mounting part (4e) on the external wall as shown in the picture below:
Insert the centering diameter of the wall-
mounting part (4e) inside the recessed duct
(6).
Once centered in the duct, mark the fixing holes on the external wall using the external wall-
mounting part (4e) through a level measure tool to ensure a proper installation as shown in the
picture below:
Make the holes and insert the expansion plug for the wall mounting.
Fix the external wall-mounting part (4e) on the external wall.
