92 en | Maintenance Plena Voice Alarm System
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual Bosch Security Systems B.V.
9 Maintenance
The system requires minimum maintenance.
To keep the system in good condition, do the following:
– Clean the units (section 9.1 )
– Clean the air inlets (section 9.2 )
– Check connectors and grounding (section 9.3 ).
9.1 Clean the units
Periodically you must clean all units with a damp, lint-free cloth.
9.2 Clean air inlets
The 19-inch units can collect dust as a result of the internal fans. Once a year you should use
a vacuum cleaner to clean the air inlets of all units in the 19-inch racks.
9.3 Check the connectors and grounding
Periodically check:
– All cable connections.
– The ground (PE) connection of the system components.
WARNING!
Dangerous mains voltages are present inside the units. Disconnect the main power supply
before you do any maintenance.
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