Bosch FAS-420-TT2 - Page 45

Aspiration smoke detector LSN improved Planning | en 45
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
M-pipe system for space protection
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
A B C D E F
A B C D E F
FAS / FCS
FAS / FCS
M-pipe system for space protection
M-pipe system Air sampling opening Number of air sampling openings
3 6 9 12 15 18 21
∅ air sampling
opening in mm
a
A 4.4 3.4 3.0 2.5 2.5 2.0 2.0
B 3.6 3.0 2.5 2.5 2.5 2.0
C 3.2 3.2 2.5 2.5 2.0
D 3.2 3.0 2.5 2.5
E 3.2 3.0 2.5
F 3.2 3.2
G 3.4
a
Punch diameter of the aspiration reducing film sheet