User manual
FLEXI 50
10
7
Mounting and set-up
The figure below shows a schematic layout of the ventilator's internal elements depending on the wall thickness.
The ability to mount the ventilator in the wall depends on the length of the internal elements and the required
protrusion A. The length of the internal elements, the diameter of the required opening and the minimum wall
thickness in which the ventilator can be installed when using different external ventilation hoods are shown in
the table below.
Reference dimensions for installation of ventilators
Ventilator model or installation variant
FLEXI 50
FLEXI 50 with
minimum wall
thickness
Length of cartridge or fan and regenerator units [mm]
370
310
Hole diameter D [mm]
180
180
Minimum possible wall thickness when using EH, EH-
14, EH-13, EH-17, MWM hoods (mm)
≥360
300
Minimum possible wall thickness when using an EH-2
hood (mm)
≥260
200
If the wall thickness is less than that in the layout of the blocks inside the wall, you can unfasten the fine filter
holder and assemble the ventilator without it and without sound-absorbing material, as shown in the figure
above. With this type of installation, the recovery efficiency may decrease and the emission of street noise into
the room may increase. This will also increase the noise level of the ventilator itself.
Attention!
The appliance should not be installed in a space where
curtains and the like objects obstate air flow!
Read the users manual before installing the unit
