Liebert GXTTM - Manual (Page 11)

9
STARTING THE UPS
1. Ensure the load equipment is turned off, and all loads are properly
connected to the UPS output.
2. Check that the mains wall isolator is ON. Turn On (Close) the Battery circuit
breaker, the Input and Output circuit breakers in that order.
The UPS will now automatically start up and default to BYPASS mode once
the UPS is connected to an active AC mains supply and the Battery and Input
circuit breakers are closed. At the end of the startup sequence the BYPASS
LED should be lit.
3. TO PROTECT YOUR LOAD YOU MUST NOW PRESS THE UPS
ON/ALARM /BATTERY TEST BUTTON TO GO TO UPS MODE
4. Press the UPS ON/ALARM /BATTERY TEST button for at least one half
second until you hear the audible alarm give a “Beep” to signal acceptance of
the command. After a delay of about 10 seconds, the BYPASS LED will
extinguish and the UPS ON LED should light. The UPS will then initiate a
self-test and a battery test. When these tests are complete, the UPS is ready
for NORMAL UPS operation. Connected load equipment may now be started.
POWERING DOWN THE UPS
1. Check to ensure that all connected load equipment is shutdown. Press the
OUTPUT OFF/ BYPASS button until a “Beep” is heard. Release the button
and then immediately press for at least one second. The
UPS ON LED will
extinguish and the
BYPASS LED will light for a short period then extinguish.
When the
AC input LED and the bottom LED of the BATTERY/LOAD array
are lit and the
UPS ON and BYPASS LED’s extinguish, the output is powered
down.
2. If necessary to isolate the UPS, set the input, output and battery breakers on
the rear of the UPS to OFF position. Finally for complete isolation turn OFF
the wall mounted mains isolator.