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Liebert Nfinity - User Manual

Liebert Nfinity
56 pages
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POWER PROTECTION
Nfinity
3:1 Power System
USER MANUAL
380/400/415V
50/60Hz
4to20kVA

Table of Contents

Questions and Answers

  • S
    Stephanie GrimesSep 4, 2025
    Why is my Liebert Nfinity shutdown imminent?
    • K
      Katrina PattersonSep 4, 2025
      If the Liebert UPS displays 'UPS Shutdown Imminent', it means that the UPS is about to shut down. Check for faulty modules or output overloads.
  • L
    Lisa RomanSep 3, 2025
    How to fix wrong voltage on Liebert Nfinity UPS?
    • P
      Paul StricklandSep 3, 2025
      If the Liebert UPS displays 'Wrong Voltage', it means that the input voltage configuration and bypass jumper settings DO NOT MATCH. Check to make sure the bypass voltage matches the input voltage and ensure the input voltage configuration matches the bypass jumper setting.
  • T
    Timothy PowellSep 2, 2025
    What to do if Liebert Nfinity shows redundant power alarm?
    • A
      Amanda MatthewsSep 2, 2025
      If the Liebert UPS displays a 'Redundant Power Alarm,' it means that the UPS is no longer redundant. Replace the faulty module to regain redundancy.
  • H
    Hector RamosSep 1, 2025
    What to do if Liebert Nfinity load exceeds battery capacity?
    • M
      Matthew MccoySep 1, 2025
      If the Liebert UPS displays 'Load exceeds battery capacity' it means that the Battery Modules are overloaded. Add extra Battery Modules or decrease the load.
  • J
    Jennifer BraunAug 31, 2025
    How to switch Liebert Nfinity from bypass (manual)?
    • H
      Heather GonzalezAug 31, 2025
      If the Liebert UPS is on Bypass (manual), it means a user switched the UPS to manual bypass. When ready, switch it back to UPS.
  • G
    gregory77Aug 30, 2025
    Why is my Liebert Nfinity UPS on bypass (auto)?
    • C
      Christina DunnAug 30, 2025
      If the Liebert UPS is on Bypass (auto), it means the UPS switched to auto bypass. The alarm screen should indicate the reason for the auto bypass.
  • P
    Peter GuerreroAug 29, 2025
    What to do if Liebert Nfinity UPS battery test failed?
    • K
      Kenneth RamosAug 29, 2025
      If the Liebert UPS indicates 'Battery Test Failed', it means the unit has detected a problem with the Battery Module. Verify the battery status via the display and perform a self-battery test.
  • Z
    ztorresAug 29, 2025
    What to do if Liebert UPS shows maximum load alarm?
    • D
      Destiny HollandAug 29, 2025
      If the Liebert UPS displays a 'Maximum Load Alarm,' it indicates that the maximum load has been exceeded. To resolve this, insert additional modules to increase load capacity or reduce the current load.
  • J
    jonathan47Aug 27, 2025
    What to do if Liebert UPS is on battery?
    • J
      Jennifer GonzalesAug 28, 2025
      If the Liebert UPS indicates 'On Battery,' it means the load is currently being powered by the UPS. Simply wait for the main power to return.
  • R
    Ronald FigueroaAug 27, 2025
    What to do if Liebert Nfinity says 'Battery Test Weak Battery'?
    • T
      Tom ArellanoAug 27, 2025
      If your Liebert UPS reports 'Battery Test Weak Battery', depending on the age of the batteries, it may be appropriate to replace all batteries in the system. Schedule a battery test so that the system operation is double-checked once the batteries become fully charged.

Summary

Important Safety Instructions

General Safety and Battery Precautions

Covers lethal voltages, working alone, and battery handling, including disposal and shock risks.

Environmental and Operational Guidelines

Details operating environment, temperature limits, and proper cleaning procedures for optimal performance.

System Warnings and Module Access

Includes electromagnetic compatibility, IT system type warnings, and precautions for accessing replaceable modules.

Introduction to the Nfinity UPS

General Description

Provides an overview of the Liebert Nfinity Power System's purpose, features, and intended use.

Modes of Operation

Explains the different operational states such as Normal, Back-Up, Auto Restart, Recharge, and Bypass modes.

Major Components

Details the key physical components of the UPS system, including the frame, modules, and user interface.

Installation and Configuration

Preparation and Site Requirements

Covers inspection, environmental conditions, required setup tools, and site preparation including weight considerations.

Unloading and Stationary Mounting

Provides step-by-step instructions for safely unloading the UPS from its pallet and securing it in its final location.

Cable Installation and Wiring

Guides on wiring preparation, connecting input/output power cables, and configuring bypass voltage for transformer models.

Communication Port Setup

Information on configuring COM ports and Intellislot ports for system communication and monitoring.

Operating the Nfinity UPS

Controls and Indicators Overview

Explains the User Interface Module, its buttons, LEDs, and display for monitoring UPS status.

Operating Procedures

Step-by-step guides for essential operations like start-up, shutdown, and manual transfer to bypass.

Main Menu Functions and Navigation

Covers accessing and navigating the Main Menu for UPS Status, Configuration, Logs, Module Replacement, and Tools.

Troubleshooting the Nfinity UPS

Alarm Messages and Causes

Lists common alarm messages, their potential causes, and recommended corrective actions.

Module LED Status Indication

Explains the meaning of the Status and Fault LEDs on Control, Power, and Battery modules for diagnostics.

Module Replacement Guide

Provides detailed instructions for safely removing and replacing Control, Power, or Battery modules.

Maintenance and Care

Proper Care and Professional Service

Emphasizes keeping the UPS clean and recommends certified technician services for optimal performance.

Scheduled Maintenance Tasks

Outlines recommended monthly and annual maintenance checks for unit cleanliness, filters, airflow, and module verification.

Replacing Fan Filters

Instructions for cleaning or replacing air filters on transformer models, noting filter reusability.

Reference Information

Technical Specifications

Detailed technical data including electrical, mechanical, environmental, input, and output parameters.

Approximate Battery Run Times

Tables showing estimated battery run times based on load and the quantity of internal and external battery modules.

Liebert Nfinity Specifications

General IconGeneral
BrandLiebert
ModelNfinity
CategoryUPS
LanguageEnglish

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