Bosch FAS-420-TT Series - Page 43

Aspiration smoke detector LSN improved Planning | en 43
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
– U-pipe system
6.9V fan voltage, max. 110m total pipe length
9V fan voltage, max. 110m total pipe length
– M-pipe system
6.9V fan voltage, max. 110m total pipe length
9V fan voltage, max. 160m total pipe length
– Double U-pipe system
6.9V fan voltage, max. 140m total pipe length
9V fan voltage, max. 160m total pipe length
Notice!
The sensitivity value is based on measurements with standard test fires (old value in
brackets).
I-pipe system for space protection
The diameters of the air sampling openings should be taken from the relevant table for each
pipe configuration:
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
FAS / FCS
A
B
C D E L MF
A
B
C D E L MF
I-pipe system for space protection
I-pipe system Air sampling
opening
Number of air sampling openings
1 2 3 4 5 6 7 8 9 10 11 12 13
∅ air sampling
opening in
mm
a
A 7.0 6.0 5.2 4.6 4.2 3.8 3.6 3.4 3.0 3.0 2.5 2.5 2.5
B 6.8 5.2 4.6 4.2 3.8 3.6 3.4 3.0 3.0 2.5 2.5 2.5
C 5.6 4.6 4.4 4.0 3.8 3.4 3.2 3.0 3.0 3.0 2.5
D 5.0 4.4 4.0 3.8 3.4 3.4 3.0 3.0 3.0 2.5
E 4.4 4.2 3.8 3.6 3.6 3.4 3.0 3.0 3.0
F 4.2 3.8 3.8 3.6 3.4 3.4 3.0 3.0
G 4.0 3.8 3.6 3.6 3.4 3.2 3.0
H 4.0 3.8 3.6 3.4 3.2 3.0
I 3.8 3.6 3.6 3.2 3.2
J 3.8 3.8 3.2 3.2
K 3.8 3.8 3.4
L 4.0 3.8
M 4.0
a
Punch diameter of the aspiration reducing film sheet