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S
ERVICING
Ensure that the power supply to the unit is switched off before servicing.
M
R
ODULE
EMOVAL
When removing a module for replacement or configuration, it is best to shut off the
power to prevent any false alarms or electric shock. When replacing any board, note
the jumper settings and transfer them to the replacement module. If in doubt, refer to
the module set-up instructions in this manual.
Note and record the window positions when removed from the
chassis so as to ensure that the windows are replaced in their
Severe problems/damage could occur to monitored
plant/equipment should windows be replaced in incorrect
positions causing erroneous indication of alarms
Only remove one window assembly at a time to minimize the
possible incorrect repositioning of alarm display windows
Series 90B ANNUNCIATOR INSTALLATION AND CONFIGURATION MANUAL
CAUTION
original locations
i.
99
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