Installation and Configuration
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.
5.3Connect Input/Output Power
! 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.
The Liebert
Follow the instructions below for removal and installation.
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.
5.3.1Remove 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
Extract these four captive screws
Pigtails removed for clarity
Maintenance Bypass Breaker
17
