Ceiling installation, installation in sloping roofs

  1. Carry out the ceiling installation as described above under wall installation.
  3. Drill through the internal cover at position [B] using a suitable drill (Ø 3.5 mm). The hole prevents moisture and germ formation in the fan housing. Note dimensions.
  4. Secure the internal cover with the enclosed screw at marking [M]. The screw is secured in the internal cover with adhesive tape.