Ceiling installation preparations

9

Suction duct for second room connection on
ER-UP/G: Flexible aluminium duct AFR 75/AFR 80
ER-UPD: Flexible aluminium duct AFR 75/AFR 80
or steel folded spiral-seams duct DN75/DN80

ER-UPB: Steel folded spiral-seams duct DN75/DN80

18

Main duct: Steel folded spiral-seams duct

19

Connection duct on
ER-UP/G: Flexible aluminium duct AFR 75/AFR 80
ER-UPD: Steel folded spiral-seams duct DN75/DN80
ER-UPB: Steel folded spiral-seams duct DN75/DN80

20

Power cable

Be sure to note the approval and installation information: Preparations for wall installation.

Preparing the shaft and suspended ceiling

  1. Make an opening in the suspended ceiling.
  2. Make an opening in the shaft for DN 75 or DN 80 connection duct.
  3. For a second room connection, produce the opening in the wall or shaft for the suction duct. Observe installation positions for the second room connection.

18

Main duct (steel folded spiral-seams duct)

19

ER GH connection duct: Flexible aluminium duct

21

Floor ceiling

22

Steel threaded rod / stair bolt

23

Duct attachment

24

Duct clamp / clamping band

25

Spigot

26

Ceiling compound

27

Shaft wall

28

Wall/board seal

29

Suspended ceiling

30

Steel screws or steel blind rivets (3 of each)

31

Dowel

31.1

Steel dowel or anchor bolt

31.2

Metal expansion dowel

32

Retaining bolt with nut

33

Retaining bolt

34

Steel clamping band

Be sure to note the approval and installation information: Preparations for wall installation.

Duct attachment with duct clamp, alternatively duct attachment with clamping band

Ensure a spacing of max. 1.5 m between the duct attachments.

  1. Correctly attach main duct inside the shaft.
  2. For fire protection systems, use ceiling compound. To do this, encase the ceiling and pour in the material from above.
  3. Fit duct attachments to the ceiling. Only use permitted mounting material.

  4. Risk of incorrect installation if non-permitted mounting material is used.

    1. Only secure connection duct to ceiling with permitted mounting material (duct clamp or clamping band).
  5. Connect permitted connection duct to main duct and seal for ventilation, for example with cold-shrink tape.
  6. Apply wall/board compound. Seal gap between brickwork and folded spiral-seams duct. The gap remaining must be fully sealed with non-flammable materials that are resistant to deformation. For example, use concrete or cement mortar or for wall boards, use fire protection filler.
  7. Fit suspended ceiling. With ER-UPD housings, ensure a suitable, flat surface so that the fan insert can be safely inserted in the housing later on.
  8. Attach spigot made from shaft material F90 around the shaft.
  9. NOTE! The spigot compensates for the length of the shaft walls in the event of a fire.
  10. Lay power cable: Electrically connecting the unit.