54
en | Planning
Aspirating Smoke Detector
2018.04 | 2.0 | F.01U.130.926
Operation Guide
Bosch Sicherheitssysteme GmbH
Double U-pipe system - single-hole monitoring
1 pipe system
FCS-320-TP1
FCS-320-TT1
2 pipe systems
FCS-320-TP2
FCS-320-TT2
FAS / FCS
FAS / FCS
C
C
B
B
A
A
Double U-pipe system for space protection
Limiting values
Min. distance FCS-320– last T-fitting
4
m
Double U-pipe
Max. distance FCS-320 – last T-fitting
20
m
Max. branch length
–
With low fan voltage
–
With high fan voltage
20
m
30
m
Max. overall pipe length per pipe system (Ø 25
mm)
–
With low fan voltage
–
With high fan voltage
100
m
140
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
12
Double U-pipe
Air sampling opening
Number of air sampling openings
4
8
12
Ø air sampling
opening in mm
a
A
4.0
3.0
2.5
B
-
3.4
3.0
C
-
-
3.0
a
Punch diameter of the aspiration reducing film sheet
Double U-pipe system activation thresholds per pipe system
Activation
thresholds
Number of openings
4
8
12
1 obstructed opening
I
—
—
2 obstructed openings
II
I
—
3 obstructed openings
0
II
I
Содержание FAS-420
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