Bosch FAS-420-TM - Planning with Air Filter

FAS-420-TM Aspirating Smoke Detector Planning | en 41
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.088.878 | 4.1 | 2010.11
3.6.3 Planning with Air Filter
Without any other pipe accessories
Pipe length in [m]
With water separator
Pipe length in [m]
Results for class B
Detector module with a sensitivity of 0.5% LT/m or 0.6% LT/m.
System parameters possible:
– I-pipe system
– ≥ 9 V fan voltage, max. 40 m total pipe length
– U-pipe system
– ≥ 9 V fan voltage, max. 50 m total pipe length
– M-pipe system
– ≥ 9 V fan voltage, max. 50 m total pipe length
– Double U-pipe system
– ≥ 9 V fan voltage, max. 50 m total pipe length
Sensitivity
(% LT/m)
Number of openings
123
45678
0.5 A A B BBCCC
0.6 A B B BCCCC
0.7 ABBCCCCC
0.8 ABBCCCCC
0.9 ABCCCCCC
1.0 ABCCCCCC
1.1 BBCCCCC
1.2 BBCCCC
1.3 BCCCCC
1.4 BCCCC
1.5 BCCCC
1.6 BCCCC
1.7 BCCC
1.8 BCCC
1.9 BCCC
2.0 BCCC
Pipe shape U
Fan
[V] 12345678
I ≥9 40404040 40
U ≥9 50505050 50 50 50 50
M ≥9 50505050 50 50 50 50
Double U ≥9 50505050 50 50 50 50
Pipe shape U
Fan
[V] 12345678
I ≥9 404040
U ≥9 505050505050
M ≥9 505050505050
Double U ≥9 5050505050505050