Chapter 4 Operating Instruction 25
Liebert GXT4 UPS 700VA ~ 3000VA (230V) User Manual
Chapter 4 Operating Instruction
This section describes checks before starting the UPS, how to start the UPS, manual battery test, manual bypass,
shutting down the UPS and disconnecting the utility power from the UPS.
Note
The Liebert GXT4’s battery has been fully charged before delivery, but some charge will be lost during storage and shipping. To
ensure that the battery has adequate reserve power to protect the connected load, charge the battery for three hours before putting
the UPS into service.
4.1 Startup Checklist For The Liebert GXT4
Before starting the UPS, perform these checks:
1. Check that the input plugs and loads are connected properly and reliably.
2. Check that the battery cable is connected properly.
3. Check that the communication cables are connected properly.
4.2 Starting The UPS
1. Turn On the input circuit breaker (see Figure 1-2 ~ Figure 1-4 for its position).
2. Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS ON’ to turn on the UPS.
3. Turn on the connected loads.
4. Check the status indicators to determine whether the Liebert GXT4 is operating normally.
5. Check the load level on LCD to verify that the connected load does not exceed the UPS’ rated capacity.
The UPS is now providing conditioned power to the loads.
4.3 Manual Battery Test
Select Main Menu -> 3 CONTROL -> 3 BATT TEST to enter the BATT TEST screen, and select ‘1 START’ to start
manual battery test.
4.4 Manual Bypass
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS BYPASS’ to transfer the UPS to bypass.
If the internal bypass is not available due to voltage or frequency, the bypass operation will be ignored.
4.5 Shut Down The Liebert GXT4
Select Main Menu -> 3 CONTROL -> 1 TURN ON & OFF to enter the TURN ON & OFF screen, and select ‘TURN
UPS OFF’ to turn off the UPS.
Power to the connected loads is now Off.
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