2. Boreholes
Position the housing, then mark and drill the holes and mount it with at least two
fastening screws and wall plugs.
3. Backdraft shutter and guide vane
- If required backdraft shutter (scope of delivery) can be installed behind the guide
vane (fig 6).
- During the housing installation, the guide vane must be mounted vertically.
- Before final assembly stick on the foam strips (scope of delivery) (fig.6).
Fig 4
Fig 5
Fig 6
Fig 7
