Simplified Pipe Planning; I-Pipe System - Simplified Planning - Bosch FAS-420-TM Operation Manual

FAS-420-TM Aspirating Smoke Detector
3.8

Simplified pipe planning

Simplified planning is used for equipment protection and in premises with smaller
dimensions. The benefit of this type of planning is the standard diameters of the suction
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.
3.8.1

I-Pipe System - Simplified Planning

1 Pipe System
FAS-420-TM
FAS-420-TM-R
FAS-420-TM-RVB
Limiting values
I-pipe system
Ø of all air sampling
openings in mm
a
Punch diameter of the aspiration reducing film sheet
Bosch Sicherheitssysteme GmbH
E 10
9
D 8
7
C 6
5
B 4
3
A 2
1
FAS-420-TM series
Figure 3.11 I-pipe system, e.g. for equipment protection
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
– Pipe Ø 25 mm
– Additional pipe Ø 12 mm
Max. total pipe length per pipe system for a fan voltage
< 10.5 V
– Pipe Ø 25 mm
– Additional pipe Ø 12 mm
Max. number of air sampling openings (n) per pipe
system
Min. distance between 2 air sampling openings
Max. distance between 2 air sampling openings
Min. distance between 2 air sampling openings for fire
source identification
1
6.8
a
Operation Guide
FAS / FCS
Number of air sampling openings
2 3
4.6 4.0
F.01U.088.878 | 4.1 | 2010.11
Planning | en 49
2 m
20 m
40 m
5 x 3 m
30 m
5 x 3 m
5 units
0.1 m
4 m
3 m
4 5
3.6 3.4