18
en | Installation
Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877
Operation Guide
Bosch Sicherheitssysteme GmbH
Using 13.5
mm cable glands, the maximum cable gauge is 12
mm.
Mounting occurs:
–
via the elongated slots or
–
via the four mounting holes to mount directly to 4 inch electrical boxes or single gang
switch boxes (for US)
FAA--500/FCA-500
FAA--500--SB-H
Figure
3.12: Fastening points for mounting
The base is mounted inside the back box via four fastening points.
3.7
Remote indicator
A Remote Indicator is required if the detector is not directly visible or has been mounted in
false ceilings or floors.
The remote indicators should be installed in corridors or access pathways to the
corresponding building sections or rooms.
Notice!
When using unshielded cables for the connection of the remote indicator, the maximum cable
length is 3m. No limitation when using shielded cables.
Installation of the FAA-420-RI Remote Indicator
!
Warning!
Malfunction and Damage
If maximum current consumption of the connected detector is larger than 20
mA, it can result
in malfunction and damage to the remote indicator.
a) Ensure, that the maximum current consumption of 20
mA is not exceeded
b) Use point‑type automatic Bosch detectors, which have an internal resistor that limits the
current consumption.
Before assembly remove the cap from the base plate
1.
Unlock the snap‑fit hook by pressing on it with a flat object and lift the cap carefully
2.
Remove the connection board for easy access.
3.
Mount the base plate directly on a dry, level surface with two or four screws.
