Bosch FAS-420-TM, Operation Manual

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50 en | Planning FAS-420-TM Aspirating Smoke Detector
F.01U.088.878 | 4.1 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
3.8.2 U-Pipe System - Simplified Planning
3.8.3 U-pipe System - Simplified Planning
1 pipe system
FAS-420-TM
FAS-420-TM-R
FAS-420-TM-RVB
Figure 3.12 U-pipe system, e.g. for equipment protection
Limiting values Min. distance FAS-420-TM – T-fitting 2 m
Max. distance FAS-420-TM – T-fitting 20 m
Max. branch length 25 m
Max. total pipe length per pipe system
– Pipe Ø 25 mm
– Additional pipe Ø 12 mm
50 m
8 x 3 m
Max. total pipe length per pipe system for a fan voltage
< 10.5 V
– Pipe Ø 25 mm
– Additional pipe Ø 12 mm
40 m
8 x 3 m
Max. number of air sampling openings (n) per pipe
system
8 units
Min. distance between 2 air sampling openings 0.1 m
Max. distance between 2 air sampling openings 4 m
U-pipe system Number of air sampling openings
2 4 6 8
Ø of all air sampling openings in
mm
a
6.0 4.2 3.4 3.0
a
Punch diameter of the aspiration reducing film sheet
E
D
C
B
A
10
9
8
7
6
5
4
3
2
1
FAS-420-TM series
FAS / FCS
1 pipe system
FAS-420-TM
FAS-420-TM-R
FAS-420-TM-RVB
Figure 3.13 U-pipe system, e.g. for equipment protection
d
FAS / FCS