Aspirating Smoke Detector
Planning | en
45
Bosch Sicherheitssysteme GmbH
Operation Guide
2018.04 | 2.0 | F.01U.130.926
U-pipe system for space protection
1 pipe system
FAS‑420‑TP1
FAS‑420‑TT1
2 pipe systems
FAS‑420‑TP2
FAS‑420‑TT2
FAS / FCS
FAS / FCS
A
B
C
D
I
J
A
B
C
D
I
J
U-pipe system for space protection
Limiting values
Min. distance: FCS-320 – T-fitting
4
m
U-pipe system
Max. distance: FCS-320 – T-fitting
20 m
Max. branch length
–
With low fan voltage
–
With high fan voltage
50
m
65
m
Max. overall pipe length per pipe system (Ø 25
mm)
–
With low fan voltage
–
With high fan voltage
120
m
150
m
Min. distance between 2 air sampling openings
4
m
Max. distance between 2 air sampling openings
12
m
Max. number of air sampling openings (n) per pipe system
20
U-pipe system
Air sampling
opening
Number of air sampling openings
2
4
6
8
10
12
14
16
18
20
∅
air sampling
opening in mm
a
A
5.2
3.6
3.4
3.0
2.5
2.5
2.0
2.0
2.0
2.0
B
4.4
3.4
3.0
3.0
2.5
2.0
2.0
2.0
2.0
C
3.6
3.2
3.0
2.5
2.5
2.0
2.0
2.0
D
3.4
3.2
3.0
2.5
2.5
2.0
2.0
E
3.2
3.0
3.0
2.5
2.5
2.0
F
3.4
3.2
3.0
2.5
2.5
G
3.6
3.4
3.0
2.5
H
3.6
3.4
2.5
I
3.6
3.6
J
3.8
Содержание FAS-420
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