Bosch FAP-420 Quick Manual

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
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
FAP-DOTC420
Combined x
Optical x
Dual-Optical x
Thermo-max. x
Detector type
FAP-DOT420 FAP-DO420
x -
x x
x x
x -
Combination of optical, thermal and chemical
u
sensors with intelligent evaluation electronics.
Earliest detection of lightest smoke (TF1 & TF9)
u
with the double-optical smoke detectors featuring
Dual-Ray technology
Detector properties adapted to cater for room usage
u
Drift compensation in optical and gas measurement
u
section
Maintains LSN loop functions in the event of wire
u
interruption or short-circuit thanks to two integrated
isolators
Thermal x
differential
Chemical x
(+ optical)
Operating
mode
FAP-OTC 4 FAP-OT 42
20
Combined x
Optical x
Dual- -
Optical
Thermo- x
max.
x -
- -
Detector type
FAP-O 420 FAH-T 420
0 (KKW) (KKW)
x - -
x x -
- - -
x - x