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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

  • K
    kristenmirandaSep 15, 2025
    What does 'Load exceeds frame limit' mean on Liebert UPS?
    • J
      jennifer47Sep 15, 2025
      If your Liebert UPS indicates that the 'Load exceeds frame limit', it means the load is greater than the rated frame limit. To resolve this, reduce the UPS’s load.
  • A
    Ashley MoranAug 25, 2025
    How to fix Liebert UPS battery module not ready error?
    • K
      kimberly87Aug 25, 2025
      If the Liebert UPS indicates 'Battery Module not ready,' it means the Battery Module is not properly installed. Ensure the module is fully inserted and the fastener is secured.
  • M
    Martha WellsAug 25, 2025
    What to do for Liebert UPS 'Load Exceeds Battery Module Capacity'?
    • L
      Leslie TravisAug 26, 2025
      If your Liebert UPS indicates that the 'Load Exceeds Battery Module Capacity', it means the measured load on the output will cause the battery modules to exceed their limits if the UPS transfers to battery mode. You should reduce the UPS’s load or add battery capacity. If external non-modular battery cabinet(s) are added, verify that the UPS’s configuration is set to match the external battery amp-hour rating and charger rating.
  • H
    Harold WarrenAug 26, 2025
    What to do if Liebert UPS show 'External Battery Module Warning'?
    • S
      Samantha SimmonsAug 27, 2025
      If your Liebert UPS displays an 'External Battery Module Warning', verify proper connections between the UPS and the Non-Modular Battery Cabinet. Reenter the amp-hour rating for the external battery (set the amp-hour entry to zero and press the return key, then reset it to the appropriate value for the external battery). If the problem persists, the external battery should be replaced.
  • J
    Jorge HillSep 16, 2025
    What to do if Liebert Nfinity UPS shows 'Switch To Manual Bypass'?
    • W
      watsonsusanSep 16, 2025
      If your Liebert Nfinity UPS is on automatic bypass, transfer it to manual bypass.
  • R
    Ryan RussellSep 23, 2025
    How to resolve Liebert Nfinity UPS 'Battery Module Not Ready'?
    • C
      Christopher MurphySep 23, 2025
      If your Liebert UPS indicates that a 'Battery Module Not Ready', ensure that the battery module is fully seated and the 1/4 turn fastener is engaged. If the problem persists, replace the battery module with a warning or failure condition indicated at the User Interface. If there is no User Interface warning or failure of a battery module, look for the battery module with LEDs indicating a problem and replace that unit.
  • E
    Elizabeth PenaSep 7, 2025
    What to do if Liebert UPS says 'Output Off - Output Short Circuit'?
    • A
      Amber KramerSep 8, 2025
      If your Liebert UPS displays 'Output Off - Output Short Circuit', it means a short circuit was detected on the output. Correct the short circuit or extreme overload condition, and then turn the UPS output back on.
  • W
    walkertinaSep 8, 2025
    What to do if Liebert Nfinity UPS shows 'Output Off- Overload, bypass unavailable'?
    • J
      Jeremy BrooksSep 8, 2025
      If your Liebert UPS shows 'Output Off - Overload, bypass unavailable', reduce the UPS’s output load and verify that the UPS’s bypass source is qualified (amplitude and frequency). Also, verify that the configuration voltage and frequency settings are properly selected.
  • 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.
  • 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.

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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