Installation and Configuration
17
5.3
Connect Input/Output Power
The Liebert GXT3-5000RT208, Liebert GXT3-6000RT208 and Liebert GXT3-6000RTL630 are
shipped with a power distribution box attached. The Liebert GXT3-8000RT208 and Liebert
GXT3-10000RT208 are shipped with a cover plate over the power distribution connector.
Follow the instructions below for removal and installation.
5.3.1 Remove the Power Distribution Box from 5000 and 6000VA Models
1. Put the Liebert GXT3 in maintenance bypass by pressing the Standby/Manual Bypass button
while the UPS is in Utility (AC) Mode and holding the button for about 2 seconds. (For help, refer
to
8.4 - Put the Liebert GXT3 in Manual Bypass
.)
2. Loosen the captive screw over the maintenance bypass breaker (see
Figure 13
for the breaker’s
location).
3. Turn the maintenance bypass breaker On.
NOTICE
The load is unprotected from disturbances in the power supply while the UPS is on bypass.
4. Turn the output and input breakers Off.
5. Loosen other captive screws until the power distribution box releases.
6. Remove the power distribution box from the UPS and set it aside.
7. Loosen the screws over the plastic cover for the connector on the rear of the panel.
8. Slide the plastic cover over the connector and tighten the screws.
Figure 13 Power distribution box removal from 5000 and 6000VA models
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.
!
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within. Ensure that
the Liebert GXT3 is shut down and power has been disconnected before beginning any work
on or in the unit.
NOTE
Do not operate the UPS with the power distribution box removed. To shut off all power to this
box and to the load, utility input power must be disconnected.
Maintenance Bypass Breaker
Extract these four
captive screws
Pigtails
removed for
clarity
