Online USV YUNTO Q 450 Benutzerhandbuch Seite 20

Maintenance, servicing and faults
• The UPS system operates with hazardous voltages. Only qualified
maintenance personnel may carry out repairs.
•
Caution - risk of electric shock. Even after the unit is disconnected
from the mains power supply (building wiring socket outlet), components
inside the UPS system are still connected to the battery and are still
electrically live and dangerous. Before carrying out any kind of servicing
and/or maintenance, disconnect the batteries and verify that no current
is present.
• Only persons adequately familiar with batteries and with the required
precautionary measures may exchange batteries and supervise
operations. Unauthorised persons must be kept well away from the
batteries.
• Caution - risk of electric shock. The battery circuit is not isolated from
the input voltage. Hazardous voltages may occur between the battery
terminals and the ground. Before touching, verify that no voltage is
present!
• Batteries may cause electric shock and have a high short-circuit current.
Please take the precautionary measures specified below and any other
measures necessary when working with batteries:
- remove wristwatches, rings and other metal objects.
- use only tools with insulated grips and handles.
• When replacing the batteries, use same number and same type of
batteries.
• Do not attempt to dispose of batteries by burning them. This could
cause battery explosion.
• Do not open or destroy batteries. Escaping electrolyte can cause injury
to the skin and eyes. It may be toxic.
• Please replace the fuse only by a fuse of the same type and of the same
amperage in order to avoid fire hazards.
• Do not dismantle the UPS system.
• Exhausted batteries should be given to a recycling company.
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