PowerWalker VFI 1000T LCD - Manual (Page 6)

3
★
Ensure that no liquid or other foreign objects can enter the UPS.
★
Do not remove the enclosure. This system is to be serviced by
qualified service personnel only.
★
Remove the protective panel only after disconnecting the terminal
connections.
★
Use No. 12AWG (for 3K/KS output terminal), 9
0℃
copper wire
and 12 lb-in Torque force when connecting to terminal block.
★
Use No. 12 AWG (for 3KS input wire), 90
℃
copper wire and
4.4 lb-in Torque force when connecting to terminal block.
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 jewellery, wristwatches, rings and other metal
objects