Technical data

Automatic Fire Detectors LSN improved
version
Maintenance and Service | en 33
Bosch Sicherheitssysteme GmbH Product Information F.01U.003.449 | 7.2 | 2010.05
8.2 Detector Type Encoding
With the exception of the FAP-O 420 and FAP-O 420-KKW, all detectors are fitted with a
colored ring around the central individual display to identify the detector type.
This facilitates inspection by service personnel.
8.3 Test Instructions for LSN improved version Fire Detectors
The latest generation of FAP-DOTC420 / FAP-OTC 420 Multisensor Detectors is equipped with
an additional sensor for detecting CO in the event of a fire. The CO sensor provides improved
response behavior and increased malfunction suppression in critical environmental
conditions.
For fire detection, detectors use the time behavior of the fire characteristics, which deviates
significantly from the time behavior of disturbance variables and also from the time behavior
of a detector check with aerosol.
Therefore, for a functional test, the detector must be switched to revision mode.
8.3.1 Test Instructions for All Fire Detectors With Optical Sensor
– On the fire panel, switch the detector zone to be inspected to revision mode. Thus the
detector is set automatically into revision operation and prepared for the detector test.
– Only in walktest mode can the detector’s individual sensors be made to trigger one after
the other with the corresponding test device. For this, you should use the service
accessories we recommend.
– The optical sensor is tested with the detector tester for smoke detectors with the Solo
A3-001 Test Aerosol.
8.3.2 Test Instructions for FAP-DOTC420 / FAP-DOT420 / FAP-OTC 420 /
FAP-OT 420
Sequential walktest
Select walktest type "Sequential walktest" on the FPA-5000/FPA-1200 panel controller in the
walktest menu.
– The same test device is used to test the CO sensor in the FAP-DOTC420 / FAP-OTC 420.
You only need to exchange the Solo A3-001 testing gas bottle with the CO testing gas
bottle. The testing gas must be applied for 1/2 to 1 second for the CO test.
Type number Color code
FAP-DOTC420 2 x yellow
FAP-OTC 420 Yellow
FAP-DOT420 2 x black
FAP-OT 420 Black
FAH-T 420 Red
FAH-T 420-KKW Red
FAP-DO420 2 x gray
FAP-O 420 -
FAP-O 420-KKW -
NOTICE!
The test head must remain over the detector until the detector has been triggered. The
distribution of the test aerosol in the transceiver and thus the trigger time of the sensor can
take up to 10 seconds.