Liebert ITA UPS 16kVA User Manual page 45

Chapter 5 Maintenance 37
It is recommended to check the UPS functions once every half year.
Backup the load data before conducting the UPS functions check. Procedures are as follows:
1. Press the OFF button to check if the buzzer beeps, indicators are on and the LCD display is normal.
2. Press the ALARM CLEAR button to check again if the indicators are on, the LCD display is normal and the UPS
has switched to the inverter mode.
Liebert ITA 16kVA/20kVA User Manual