Bosch FAS‑420‑TM Series Quick Installation Manual page 18

18 en | Connection
Installing the unit
Notice!
When selecting the installation location, ensure that the LEDs are easily visible.
Remember when planning that the unit fans generate a noise level of approx. 40 dB(A).
In order to prevent damage to the device, ensure that the installation location is not in a door
opening area.
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2.
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4.
5.
6.
7.
3 Connection
Notice!
The units are usually connected to an additional power supply. When connecting to a Bosch
fire panel LSN improved version, the voltage is supplied via the AUX outputs of the Battery
controller module. Alternatively, an external mains unit (e.g. FPP-5000 or UEV 1000) can be
used.
For assignment of screw terminals in the housing base, refer to graphic 03, page 5 .
Designation
V+
V-
V+
V-
2020.04 | 5 | F.01U.088.879
Aspiration from above
Ensure that the air outlet of the aspiration smoke detector is not obstructed. Maintain a
distance of at least 10 cm between the air outlet of the FAS-420-TM and the surrounding
objects (e.g. wall).
Aspiration from below
If the air-return pipe is directed upwards, it must be guaranteed that no foreign bodies or
dripping water can penetrate the air return. You should therefore use a short, downward
angled pipe.
First, clearly mark the fixing points on the installation position provided on the
equipment. To guarantee a safe and low-vibration hold, the housing base must be secured
with four screws.
Fix the housing base to the surface by means of four screws in accordance with the
mounting type. Make sure that the housing base is not fixed under mechanical tension
and that the screws are not tightened too much. Otherwise, the device might be damaged
or undesirable secondary noise may arise.
Using a screwdriver, carefully punch out the required cable entries from the housing
base.
Fit the cable entry point(s) as required with M20 or M25 cable entries by pushing them
into the corresponding cable bushings. 2 x M20 and 1 x M25 cable entries are supplied in
the pack.
Punch out the cable entries using a sharp object.
Caution: Do not cut the cable entries with a knife!
Feed the connection cable(s) (max. 2.5 mm²) through the prepared M20 or M25 cable
entries into the device and cut to the required length inside the device.
Wire the unit according to the connection information described below.
Cable
Red
Black
Red
Black
Quick installation guide
Function
Additional power supply, incoming
Additional power supply, outgoing
Aspiration smoke detector LSN improved
Bosch Sicherheitssysteme GmbH