Vertiv | Liebert® GXT5 | Installer/User Guide 35
3.6. Shutting-down the UPS Completely
WARNING! Risk of electric shock
Can cause injury or death. Disconnect all local and remote electric power supplies before working with the UPS.
Ensure that the unit is shut down and power has been disconnected before beginning any maintenance.
For 5-kVA to 10-kVA models, transfer to Bypass mode, see Transferring from Normal to Bypass Mode above� Then,
if power to the load is not needed, open the input circuit breaker�
For systems with direct power distribution, isolate the UPS from AC power by disconnecting the external input
circuit breaker�
If the main and bypass are independently powered, open the two input circuit breakers�
3.7. Remote Emergency Power-o (REPO)
REPO turns o the UPS in emergency conditions such as fire or flood� When an emergency occurs, the REPO
switch turns o the rectifier and inverter and stops powering the load immediately� The battery stops charging and
discharging�
To manually power-o in an emergency, disconnect the terminal connecting the REPO port on the rear of the UPS�
If mains/utility power is present, the UPS control circuit remains active even though output power is disabled� To
remove all mains/utility power, disconnect the external input circuit breaker�
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