Bosch FAS-420-TM - FAS-420-TM Series Aspirating Smoke Detectors and Accessories

FAS-420-TM Aspirating Smoke Detector Technical Specifications | en 17
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.088.878 | 4.1 | 2010.11
2.5 FAS-420-TM Series Aspirating Smoke Detectors and
Accessories
2.5.1 Overview
FAS-420-TM series Aspirating Smoke Detectors comprise the following components:
Housing base
– Connections for pipe with 25 mm external diameter (input and return)
– Pack with cable entries, 1 x M 25 (for cable diameter of 1-18 mm) and
2 x M 20 (for cable diameter of 1-13 mm)
– Screw terminals for securing cables with a thickness of up to 2.5 mm²
Detector module
– Sensitive detection with the latest technology according to the principle of an optical
scattered-light smoke detector with integrated airflow monitoring
– Aspiration unit with optimized air routing
– PC board with LSN connections, connection for shield wire and DIP switch for address
setting
– Infrared diagnostics port
– FAS-420-TM: optical displays for main alarm, malfunction and operation
– FAS-420-TM-R: optical displays for fire source identification, main alarm, malfunction and
operation
– FAS-420-TM-RVB: optical displays for fire source identification, pre-alarm and main alarm,
malfunction and operation, smoke level display
Information on other accessories for special applications can be found in
– Section 2.5.6 FAS-ASD-DIAG Diagnostic Software
– Section 2.6.3 Ceiling Lead-through
– Section 2.6.5 Water Separator for Humid Areas
Figure 2.10 Overview of FAS-420-TM series aspirat-
ing smoke detectors and accessories
1 Pipe system
2 Connections to fire panel/power supply
3 Air-return Pipe
A FAS-ASD-DIAG Diagnostic Software with
connection cable
B Cable entries (2 x M20, 1 x M25)
C Test pipe
1
2
3
A
BC
F
AS
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20
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TM
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