FAS-420-TM Aspirating Smoke Detector
Planning | en
51
Bosch Sicherheitssysteme GmbH
Operation Guide
F.01U.088.878 | 4.1 | 2010.11
3.8.4
Double U-Pipe System - Simplified Planning
Limiting values
Min. distance FAS-420-TM – T-fitting
2 m
Max. distance FAS-420-TM – T-fitting
20 m
Max. branch length
16.5 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
6 units
Min. distance between 2 air sampling openings
0.1 m
Max. distance between 2 air sampling openings
4 m
M-pipe system
Number of air sampling openings
3
6
Ø of all air sampling openings in
mm
a
5.0
3.6
a
Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TM
FAS-420-TM-R
FAS-420-TM-RVB
Figure 3.14
Double U-pipe system, e.g. for equipment protection
E
D
C
B
A
10
9
8
7
6
5
4
3
2
1
FA
S-420-
TM
series
FAS / FCS
Содержание FAS-420-TM
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