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Vertiv LIEBERT GXT5 Series - User Manual

Vertiv LIEBERT GXT5 Series
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Liebert®
GXT5™ UPS
Installer/User Guide
200 V to 240 V, 5000 VA to 20,000 VA

Table of Contents

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Questions and Answers

  • J
    Jodi IrwinAug 2, 2025
    What to do if my Vertiv LIEBERT GXT5 fails to start?
    • D
      Douglas RiveraAug 2, 2025
      If your Vertiv UPS fails to start, it might be due to a short circuit or overload. Turn off the UPS, disconnect all connected devices, and ensure nothing is stuck in the output receptacles. Also, verify that the connected devices are not faulty or shorted internally. Alternatively, the batteries may not be adequately charged or properly connected. Check the internal battery connection and connect it if necessary. If the battery is already connected, allow the UPS to charge for 24 hours by keeping it connected to the input power before attempting to start it again.
  • J
    Joseph MillsAug 17, 2025
    Why does my Vertiv LIEBERT GXT5 UPS have reduced battery backup time?
    • M
      Mary LeeAug 17, 2025
      Reduced battery backup time in your Vertiv UPS can occur for several reasons. First, ensure the UPS is plugged in continuously for at least 24 hours to fully recharge the batteries. Secondly, check the load level indicator and reduce the load on the UPS if it is overloaded. Finally, the batteries may be old and unable to hold a full charge, in which case you should replace them. Contact your Vertiv representative or Vertiv Technical Support for a replacement battery kit.

Summary

Important Safety Information

Chapter 1: GXT5 Description

Major Internal Components and Operating Principle

UPS States and Operating Modes

Covers the different operational states and modes of the GXT5 UPS.

Chapter 2: Installation

Unpacking and Inspection

Pre-installation Preparation

Covers essential preparation steps before installing the UPS.

Installing the UPS

Guides on how to install the UPS, either in a tower or rack configuration.

Installing External Battery Cabinets

Details the process of connecting external battery cabinets for extended runtime.

Hardwired Input;Output Connections

Covers the procedures for making electrical connections via hardwiring.

Branch Circuit Breaker

Discusses the requirements for branch circuit breakers for UPS connections.

Terminal-block Connections

Provides guidance on making electrical connections using terminal blocks.

Connecting to Terminal Blocks on 5-kVA and 6-kVA models

Connecting to Terminal Blocks on 8-kVA and 10-kVA models

Connecting to Terminal Blocks on 16-kVA and 20-kVA models

Communication Connections

Details how to connect various communication interfaces and ports.

Connecting a Remote Emergency Power-off (REPO) Switch

Guides on connecting an emergency power-off switch.

Installing a Parallel System

Covers the setup and configuration of a parallel UPS system.

First-time Start-up of Parallel System

Guides on the initial startup procedure for a parallel UPS system.

Commissioning Parallel System

Details the steps for commissioning a parallel UPS system.

Adding a Single UPS to the Parallel System

Explains how to add or replace a UPS in an existing parallel configuration.

Chapter 3: Operating the UPS

Starting-up the UPS

Step-by-step guide for starting the UPS.

Shutting-down the UPS Completely

Remote Emergency Power-off (REPO)

Details the function and operation of the Remote Emergency Power-off feature.

Chapter 4: Operation and Display Panel

LCD Menu and Screens

Overview of the LCD interface, menus, and screens for UPS control.

Status Screen

Settings Submenu

Control Screen

Editing Display and Operation Settings

Guides on adjusting display settings and UPS configuration.

Changing the Password

Instructions on how to change the default password for security.

Chapter 5: Maintenance

Replacing Batteries

Detailed steps for safely replacing the internal UPS batteries.

Removing the Power-distribution Box

Chapter 6: Troubleshooting

Symptoms that Require Troubleshooting

Faults

Troubleshooting UPS Issues

Provides solutions for common UPS problems and contact information.

Vertiv LIEBERT GXT5 Series Specifications

General IconGeneral
ModelLIEBERT GXT5 Series
Product TypeUPS
TopologyDouble Conversion Online
DisplayLCD
Form FactorTower, Rackmount
Output Voltage200/208/220/230/240 VAC
Output Frequency50/60Hz ±0.1Hz (battery mode)
Typical Backup TimeVaries by model and load
Communication PortsUSB, RS-232
Operating Temperature0°C to 40°C (32°F to 104°F)
Relative Humidity0% to 95% (non-condensing)
DimensionsVaries by model
WeightVaries by model
CertificationsUL, cUL, CE, RoHS
Battery TypeValve Regulated Lead Acid (VRLA)

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