Bosch FAS-420-TP2 - Page 44

44 en | Planning Aspiration smoke detector LSN improved
2020.04 | 6.1 | F.01U.029.275 Operation guide Bosch Sicherheitssysteme GmbH
U-pipe system for space protection
1 pipe system
FAS‑420‑TP1
FAS‑420‑TT1
2 pipe systems
FAS‑420‑TP2
FAS‑420‑TT2
FAS / FCS
FAS / FCS
A B C D I J
A B C D I J
U-pipe system for space protection
U-pipe system Air sampling
opening
Number of air sampling openings
2 4 6 8 10 12 14 16 18 20
∅ air sampling
opening in mm
a
A 5.2 3.6 3.4 3.0 2.5 2.5 2.0 2.0 2.0 2.0
B 4.4 3.4 3.0 3.0 2.5 2.0 2.0 2.0 2.0
C 3.6 3.2 3.0 2.5 2.5 2.0 2.0 2.0
D 3.4 3.2 3.0 2.5 2.5 2.0 2.0
E 3.2 3.0 3.0 2.5 2.5 2.0
F 3.4 3.2 3.0 2.5 2.5
G 3.6 3.4 3.0 2.5
H 3.6 3.4 2.5
I 3.6 3.6
J 3.8
a
Punch diameter of the aspiration reducing film sheet