Bosch 520 Series - Built-in Housing for Concrete Ceilings; Surface Mount Back Box

Automatic Detectors LSN improved Installation | en 17
Bosch Sicherheitssysteme GmbH Operation Guide 2019.11 | 4.0 | F.01U.025.877
3.5 Built-in Housing for Concrete Ceilings
218
20
103
131
1
Figure3.10: FAA-500-CB built-in housing
The FAA‑500‑CB Built-in Housing is used for the installation of the detector into concrete
ceilings. It allows for easy connection of conduits.
The FAA-500-CB Built-in Housing is placed on the concrete form, fastened and secured against
floating. During fastening make sure the nails are located in the area of the Styrofoam, to
prevent interference when cutting the Styrofoam.
Pipe or cable inlets at the FAA‑500‑CB Built-in Housing within the wall areas are made with a
universal cutting tool. After removing the form-boards, the front part (1) is opened with a fret-
saw or hole saw.
Into the hole of the built-in housing, a FAA‑500‑BB Ceiling Mount Back Box is then inserted
which takes base and detector.
3.6 Surface Mount Back Box
∅ max.:
6--12 mm
13,5 mm13,5 mm
∅ max.:
6--12 mm
120 mm
F.01U.000.654
> PC--FR <
25 mm
40,5 mm
20 mm
14,5 mm
8,5 mm
35 mm
4,1 mm
8,5 mm
20 mm
∅
82 mm
80 mm 2 mm
∅
∅
150 mm
Figure3.11: FAA-500-SB-H Surface Mount Back Box
The FAA-500-SB-H Surface Mount Back Box allows flush and surface cable duct. The box has a
seal for damp rooms.
For surface cable duct use the side knockouts. For flush cable duct, there are two openings in
the bottom.