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3.7 Connecting Power Cables
1. Open the UPS input breaker.
2. Open the UPS bypass breaker.
3. Set the maintenance breaker to the Bypass position.
4. Remove the electrical connection protective panel, if installed, from the rear UPS panel.
5. Connect loads to the output terminals as illustrated in Figure 7.
6. Connect the utility to the corresponding input terminals (see Figure 7).
• If the bypass input is to be supplied separately, connect the bypass source to the corresponding
bypass terminals.
• If the UPS is supplied from a single feed, connect the factory-supplied jumper between terminal
UPS Input-BYP and Bypass Input-L1.
3.8 External Battery Cabinets
Up to four external battery cabinets may be connected to the Liebert
®
GXT3-10000T220
™
. A cable to
connect the battery cabinet and the Liebert GXT3-10000T220 is supplied with each battery cabinet.
Open the breaker before making battery cable connections.
Plug one end of this cable into the UPS and the other end into the battery cabinet—slotted fittings on
each end ensure that the connection is properly made. If your UPS has an integrated battery, a
compensating current may occur during connection. Once both ends of the cable have been connected,
the circuit breaker on the external battery cabinet must be closed.
Figure 8 Liebert GXT3-10000T220 with External Battery Cabinet
!
CAUTION
Battery maintenance must be performed only by authorized personnel who are properly
trained and qualified.
External battery cabinets are hot-swappable; they can be replaced during normal UPS
operation.
DO NOT connect or disconnect batteries when the UPS is in Battery Mode.
UPS
Rear View
External
Battery
Cabinet
Rear View
Battery Breaker
(Liebert GXT3-240TVBATTCE)
External
Battery
Cabinet
Connector
Connector for
additional cabinet
External Battery Cabinet
Liebert GXT3-240TVBATTCE