Battery; Dynamic Bypass - Emerson Liebert GXT3 208V 5000-10000V User Manual

2.6

Battery

The Liebert GXT3 utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery
design life, operate the UPS in an ambient temperature of 15°C to 25°C (59°F to 77°F). Optional
external battery cabinets are available to extend battery run times. For run times, see Table 14.
2.7

Dynamic Bypass

The Liebert GXT3 provides an alternate path for utility power to the connected load in the unlikely
event of a UPS malfunction. Should the UPS have an overload, overtemperature or any other UPS
failure condition, the UPS automatically transfers the connected load to bypass. Bypass operation is
indicated by an audible alarm and illuminated amber Bypass LED (other LEDs may be illuminated to
indicate the diagnosed problem). To manually transfer the connected load from the inverter to bypass,
press the Standby/Manual Bypass button once and hold it for about 2 seconds.
NOTE
The bypass power path does NOT protect the connected equipment from disturbances
in the utility supply.
6
System Description