8 ac input indicator led (green), 9 output voltage selection, Ac input indicator led (green) – Liebert GXT 2U User Manual
Page 20: Output voltage selection, Caution

Controls and Indicators
16
5.8
AC I
NPUT
I
NDICATOR
LED (G
REEN
)
The AC Input indicator LED is illuminated when utility power is
available and within the input specifications.
5.9
O
UTPUT
V
OLTAGE
S
ELECTION
The Output Voltage is user configurable and is designed to allow
selecting or changing the desired output voltage to match the utility
via the GXT 2U Configuration Program provided with the UPS. The
settings to choose from are 100, 110, 115, 120, and 127 VAC output.
The factory default setting is 120 VAC.
!
CAUTION
Never change the voltage settings while the UPS is ON and
powering connected loads.
NOTE
Setting output voltage to 100 VAC will cause the
UPS unit to be derated (500/700/1000 VA to 90%,
1500/2000/3000 VA to 80% of the VA and Watt
ratings listed in 11.0 - Specifications).