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Installation and Configuration
14
1. Visually inspect the external battery cabinet for freight damage. Report damage to the carrier
and your local dealer or Liebert
®
representative.
2. For slide rail installations, first remove the top/side fin. Top/side fin slides forward and then lift
up to remove. Optional rack-mount handles are shipped with the external battery cabinet and
may be installed at this time if desired.
3. Securing hardware and slide rails are sold separately. Please contact your local dealer or Liebert
representative for these additional options and any assistance needed. Fasten the slides into
position with the screws per the instructions included with the slide rails.
4. Use the enclosed support bases for the tower option to prevent tip-over. One additional set of
support base extensions ships with each external battery cabinet.
5. Put the UPS in Bypass Mode by pressing the bypass button on the front of the unit one time.
6. Verify the External Battery Cabinet breaker is in the Off position.
7. Connect the supplied external battery cabinet cable to the rear of the external battery cabinet,
then to the rear of the UPS.
8. Turn the External Battery Cabinet breaker to the On position.
9. Press the On button on the front of the UPS for 4 seconds to return the unit to inverter Mode.
10. Verify the circuit breaker on the External Battery Cabinet is in the On position.
11. Use the included configuration program to program the UPS for the number of external battery
cabinets connected. Instructions for the configuration program are in 6.0 - Configuration
Program.
12. The UPS is now equipped with additional backup battery run time. For approximate battery run
times, refer to Table 11.
5.3 Connect Input/Output Power
Figure 9 Power Distribution box removal—captive screws and maintenance bypass breaker
The UPS should arrive with the power distribution box attached. If the box needs to be removed for
maintenance or replacement, follow these instructions to remove and install the power distribution
pack.
To remove:
1. Ensure maintenance bypass lamp is on. To place the unit in maintenance bypass, see 8.4 - Put
the Liebert
®
GXT3
™
in Manual Bypass.
2. Loosen one captive screw over the maintenance bypass breaker.
3. Turn the maintenance bypass breaker on.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
NOTE
When removing the External Battery Cabinet, the circuit breaker on the rear of the cabinet
must be turned off before disconnecting the cable.
NOTE
If the UPS is to be shipped or stored for an extended time, the connector should be
disconnected. This will minimize any standby current drain on the batteries and help attain
their design life.
Extract these
captive screws
Maintenance
Bypass Breaker