-3-
1.3
Maintenance, servicing and faults
The UPS operates with hazardous voltages. Repairs may be carried out only by
qualified maintenance personnel.
Caution - risk of electric shock. Even after the unit is disconnected from the
mains power supply (building wiring socket), components inside the UPS are still
connected to the battery which are potentially dangerous.
Before carrying out any kind of service and/or maintenance, disconnect the
batteries. Verify that no current is present and no hazardous voltage exists in the
capacitor or BUS capacitor terminals.
Batteries must be replaced only by qualified personnel.
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. Verify that no voltage is present before servicing.
Batteries have a high short-circuit current and pose a risk of shock. Take all
precautionary measures specified below and any other measures necessary
when working with batteries: remove all jewelry, wristwatches, rings and other
metal objects, only use only tools with insulated grips and handles.
When changing batteries always replace with the same quantity and the same
type of batteries.
Do not attempt to dispose of batteries by burning them. It could cause an
explosion.
Do not open or modify batteries. Effluent electrolyte can cause injury to the skin
and eyes and is considered 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, except for qualified maintenance personnel.
1.4 Transport
Please transport the UPS only in the original packaging (to protect against shock
and impact).
1.5 Storage
The UPS must be stockpiled in the room where it is ventilated and dry.
