Bosch FAS‑420‑TP Serie Guía De Instalación Rápida página 20

20 en | Installation
2 Installation
FAS-420 Aspiration smoke detector series were developed specifically for connection to Bosch
fire panels with LSN improved version technology and therefore offer the following extended
features:
–
–
–
The FAS-420 series also offers all the established benefits of LSN technology. The operating
data and fault messages can be read off the fire panel's operating and display unit.
Warning!
Installation must only be performed by authorized and specialized personnel!
!
Switch off the unit before carrying out any connection work!
Do not connect or disconnect the detector module while switched on!
Installing the detector module
For installation procedure, refer to graphic 03, page 4 . For motherboard with jumper BR1,
refer to graphic 04, page 4 .
Proceed as follows to install the detector module:
1.
2.
Notice!
Only DM-TT-50(80), DM-TT-10(25) and DM-TT-01(05) detector modules certified to VdS may
be used.
The detector module settings are configured via the RPS software. All DIP switches on the
detector module must be set to "OFF".
The sensitivity value is based on measurements with standard test fires (old value in
brackets).The activation threshold for the airflow malfunction is set to 20% volume flow
change by default. Higher values are not permitted within EN 54‑20 or ISO 7240-20.
Notice!
FAS-420-TP2 and FAS-420-TT2 variants:
These unit types are factory prepared for the installation of two detector modules:
The fan covers for both aspiration pipes are removed.
The two pipe system connections are cut out.
The pin pair on jumper BR1 is open.
3.
4.
5.
6.
2020.04 | 5 | F.01U.029.274
Flexible network structures, including T-tapping with no additional elements
Up to 254 LSN-improved elements per loop or stub line
Unshielded cable can be used.
Open the unit by carefully unlocking the housing cover's quick locks.
Carefully pull the display board connection cable from the motherboard (DISPLAY
connection) and remove the housing cover. Once the unit is installed, fix the cover with a
service clip.
Spread the brackets provided for fixing the detector module slightly apart.
Carefully insert the detector module until you hear it click into place. Make sure that the
used detector module is fixed tightly and securely by the bracket by additionally pushing
together the brackets by hand.
Connect detector module 1 to the HEAD1 connection on the motherboard using the
flatband cable. For devices with a two pipe system: Connect also the detector module 2
to the HEAD2 connection on the motherboard using the flatband cable.
Reconnect the display board cable to the DISPLAY connection on the motherboard.
Quick installation guide
Aspiration smoke detectors LSN improved
Bosch Sicherheitssysteme GmbH