Bosch FAS-420-TM, Operation Manual

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12 en | Technical Specifications FAS-420-TM Aspirating Smoke Detector
F.01U.088.878 | 4.1 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
2.3 System Overview
The Smoke Aspiration Systems comprise a detector module, housing base and pipe system.
The most important components of the Smoke Aspiration System are the sensitive detector
module for detecting smoke aerosols and the aspiration unit with the built-in airflow sensor
for transporting the air samples and monitoring the pipe system for breakage and
obstructions.
The pipe system comprises essentially pipe and fittings. The standard pipe system is made
from PVC or ABS. The pipes used for equipment monitoring should be halogen-free.
Each air sampling opening in the pipe system represents a point detector in the planning.
Figure 2.3 Principle of equipment monitoring with FAS-420-TM series
Aspirating Smoke Detectors
1 Clicking
1
FAS / FCS
Figure 2.4 Overview of the aspirating smoke detector
A Pipe system
FAS-420-TM Aspirating Smoke
Detector
1 Smoke aspiration
pipe
2 Air intake
3 Air sampling
openings
4 Detector module
incl. airflow sensor
5 Housing base
6 Aspiration unit
7 Air outlet
2
7
3
1
A
FAS / FCS
4
6
5