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Installation and Configuration
18
5.3.2 Remove the Power Distribution Cover from 8000 and 10,000VA Models
1. Shut down the Liebert
®
GXT3
™
by pressing the Standby/Manual Bypass button twice while the
UPS is in Bypass Mode, each time holding the button down for about 2 seconds. (For help, refer to
8.5 - Shut Down the Liebert GXT3.)
2. Loosen the captive screw over the maintenance bypass breaker (see Figure 5 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. Support the power distribution box and remove the two screws at the top of the box.
6. Remove the cover or power distribution box from the UPS and set it aside.
7. If removing a power distribution box, carefully pull apart the power distribution box connector
and the UPS connector.
Figure 14 Power distribution box removal from 8000 and 10,000VA models
5.3.3 Install the Power Distribution Box on 5000 and 6000VA Models
1. Align the connectors and press the power distribution box onto the UPS.
2. Hold the box firmly against the UPS and tighten the captive screws except the one over the
maintenance bypass breaker.
3. Turn the output and input breakers On.
4. Start the UPS according to startup instructions.
5. Verify that the UPS lamp is illuminated.
6. Turn the maintenance bypass breaker Off.
7. Insert the maintenance bypass cover behind the captive screw and tighten the screw.
NOTE
The maintenance bypass breaker cover must be installed behind the captive screw and the
screw must be tightened for the UPS to operate in inverter mode.
Tabs slip into slots on UPS
Extract screws at these places
Pigtails
removed for
clarity