14 en | Installation Conventional Automatic Fire Detectors
2021.03 | 11 | F.01U.004.377
User manual
Bosch Sicherheitssysteme GmbH
4.4.3 Wiring MSS 300
blue
blackred
b2
b1
c
a1/
a2
red black blue
MSS 300
a1 / a2 L . . . a (conventional) / LSN -
b1 , b2 L . . . b (conventional) / LSN +
C Remote indicator output
screen wire (has to be isolated and as short as possible)
red 24V DC power supply for the first and the second tone.
black for activating the first tone.
blue for activating the second tone.
4.5 Installing the Detector Head
Notice!
The packaging for the multisensor detector with C sensor consists of tear-proof PE-ALU
laminated film and must be cut open carefully.
After installation and connection of the base, the detector head is set into the base and turned
to the right as far as it will go.
Detector bases are delivered with inactive locks.
The detector head can be locked into the base (removal protection). The locking feature is
activated by breaking the bolt (X) out of the base and pushing it into the corresponding guide,
as shown in
, page 14
.
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