Preparation for ceiling installation (with fire protection)

(Connection outside of the shaft)

11

Dowel for drill holes

12

Main duct (steel folded spiral-seams duct)

13

Connection duct: steel folded spiral-seams duct.
(For ceiling barrier system or ventilation ducts without fire protection: flexible aluminium duct)

14

Power cable

Preparing the shaft

  1. Produce opening in shaft or alternatively produce a wall facing. Ensure a suitable, flat surface for the housing so that the fan insert can be safely inserted in the housing later on.
  2. Correctly attach main duct inside the shaft.
  3. For fire protection systems, use ceiling compound. To do this, encase the ceiling and pour in the material from above.
  4. Connect connection duct, suitable for the housing, to the main duct and seal for ventilation.
  5. Cut connection duct to length, note a maximum duct length of 2 m.
  6. NOTE! Cut connection duct to a length which allows it to be fitted on the exhaust socket and also sealed for ventilation at the unit end.
  7. Lay suction duct and seal gap remaining correctly as described in previous mounting instructions.
  8. Lay power cable in shaft and allow to protrude by around 30 cm above the shaft opening.
  9. Lay power cable: Electrically connecting the unit.