Bosch FCS-LWM-1, Installation Manual

Page: 9 / 16

FCS-LWM-1 en 9
Bosch Security Systems F.01U.028.512 | A2 | 2007.03
Safety instructions
Short description
The FCS-LWM-1 is a linear heat detector for detecting fire. It is suitable for use in constricted
spaces and under extreme environmental conditions. The control unit reports temperature
differences by monitoring the resistance in the sensor cable. If the temperature rises, the
electrical resistance falls and the control unit outputs an alarm message depending on the
response temperature.
The response temperature for the MAX ALARM is set using a 16-position switch. If the
response temperature is exceeded, an alarm message is output. The differential alarm
threshold for the DIFFALARM is set using two 16-position switches
–
DIFF TIME and
– DIFF ALARM
Located on the control unit are four LEDs, which display the status. The green LED signals
normal mode, the yellow LED signals a malfunction and the two red LEDs denote MAX ALARM
and DIFF ALARM.
The control unit also features three keys. The two test keys TEST FAULT and TEST ALARM can
be used to test the system for malfunction or alarm. The RESET key restores the system to its
original status.
CAUTION!
Electrostatic danger.
Components can become damaged by electrostatic discharge. Take suitable precautions to
avoid electrostatic discharge.
!
CAUTION!
Damaging of cable.
The cable has thermal conductive properties that can be lost if it is physically deformed.
Do not heat the sensor cable at selected points using a hot air blower.
!
CAUTION!
Trouble message.
The connection of the grounding drain wire causes a trouble message at the fire alarm panels
BZ 500 and UEZ 2000.
Do not connect the grounding drain wire to the grounding terminals 3-4.
i
NOTICE!
Have maintenance and installation work carried out regularly by trained, qualified personnel
only. Bosch Security Systems recommends a functional and visual inspection once a year.