Bosch FAS‑420‑TP Series - Planning for Long Pipe Feed Lines

56 en | Planning Aspiration smoke detector LSN improved
2020.04 | 6.1 | F.01U.029.275 Operation guide Bosch Sicherheitssysteme GmbH
Double U-pipe system - simplified planning
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
FAS / FCS
FAS / FCS
d
d
TITANUSP RO ·SENS 2
®
1 2
i
1 2 3 4 5 6 7 8 9 10
i
12
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
Double U-pipe system, e.g. for equipment protection
Limiting values Min. distance FAS-420 – last T-fitting 2m
Double U-pipe Max. distance FAS-420 – last T-fitting 20m
Max. branch length 20m
Max. overall pipe length (Ø 25mm) 100m
Min. distance between air sampling openings (d) 0.1m
Max. distance between air sampling openings (d) 4m
Max. number of air sampling openings (n) per pipe system 20
Double U-pipe Number of air sampling openings
4 8 12 16 20
Ø of all air sampling openings in mm
a
4.0 3.4 3.0 2.5 2.0
a
Punch diameter of the aspiration reducing film sheet
4.9 Planning for long pipe feed lines
Notice!
Only to be used when taking over inventory planning
Pipes with a 40mm diameter are required for planning pipe feed line A. Area B is designed
with 25mm pipes in accordance with Standard pipe planning, page 39 . The plan applies for
the pipe configurations described above.