Bosch FAP-420 Quick Manual

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Fire Alarm Systems | FAP-420/FAH-420 Automatic Fire Detectors LSN improved version
FAP-420/FAH-420 Automatic Fire
Detectors LSN improved version
www.boschsecurity.com
u Combination of optical, thermal and chemical
sensors with intelligent evaluation electronics.
u Earliest detection of lightest smoke (TF1 & TF9)
with the double-optical smoke detectors featuring
Dual-Ray technology
u Detector properties adapted to cater for room usage
u Drift compensation in optical and gas measurement
section
u Maintains LSN loop functions in the event of wire
interruption or short-circuit thanks to two integrated
isolators
The 420 Series Automatic Fire Detectors offer a
superb accuracy as well as detection speed and
precision.
The versions with dual-optical sensor (DO-detectors:
FAP-DO420, FAP-DOT420, FAP-DOTC420) are able to
detect lightest smoke (TF1 and TF9).
These detectors provide all advantages of LSN
improved version. The addressing of the detectors can
be configured with the integrated turning switches.
System overview
Operating
mode
Detector type
FAP-DOTC420 FAP-DOT420 FAP-DO420
Combined x x -
Optical x x x
Dual-Optical x x x
Thermo-max. x x -
Thermal
differential
x x -
Chemical
(+ optical)
x - -
Operating
mode
Detector type
FAP‑OTC 4
20
FAP‑OT 42
0
FAP‑O 420
(KKW)
FAH‑T 420
(KKW)
Combined x x - -
Optical x x x -
Dual-
Optical
- - - -
Thermo-
max.
x x - x