Planning With Single-Hole Monitoring; I-Pipe System - Bosch FAS-420-TM Operation Manual

44 en | Planning
3.7

Planning with Single-hole Monitoring

Depending on the pipe configuration, the following system parameters are used to detect a
single air sampling opening or a particular number of obstructed air sampling
openings.Planning is to be carried out according to regulations specified in
Section 3.6 Standard Pipe Planning, page 39. Additionally, the following limiting values and
opening diameters must be observed. An additional accessory (air filter, condensate
separator etc.) can have an effect on the maximum pipe length.
3.7.1

I-pipe system

1 pipe system
FAS-420-TM
FAS-420-TM-R
FAS-420-TM-RVB
Min. distance FAS-420-TM – 1st air sampling opening
Max. distance FAS-420-TM – 1st air sampling opening
Max. total pipe length per pipe system
–
–
Max. total pipe length per pipe system for a fan voltage < 10.5 V
–
–
Min. distance between 2 air sampling openings (d)
Max. distance between 2 air sampling openings (d)
Max. number of air sampling openings (n) per pipe system
I-pipe system
Ø of air sampling
openings in mm
a
Punch diameter of the aspiration reducing film sheet
F.01U.088.878 | 4.1 | 2010.11
Figure 3.7 I-pipe system for space protection
Pipe Ø 25 mm
Additional pipe Ø 12 mm
Pipe Ø 25 mm
Additional pipe Ø 12 mm
Air sampling
opening
a
Operation Guide
FAS / FCS
A
B
Number of air sampling openings
1
A 6.8 4.6
B - 5.0
C -
D -
E -
FAS-420-TM Aspirating Smoke Detector
C D E
2 m
20 m
40 m
5 x 3 m
30 m
5 x 3 m
4 m
10 m
5 units
2 3 4
4.0 3.4
4.2 3.6
- 4.4 3.8
- - 4.0
- - -
Bosch Sicherheitssysteme GmbH
5
3.0
3.2
3.4
3.6
3.8