Liebert GXT2-6000RT230, GXT2-4500RT230 manual Internal Battery, Maintenance

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Maintenance

11.0MAINTENANCE

11.1Internal Battery

The UPStation GXT2 requires very little maintenance. The batteries are valve-regulated, non-spill- able, flame retardant, lead acid, and should be kept charged to obtain their designed life. The UPS continuously charges the batteries when connected to the mains supply.

When storing the UPS for any length of time, it is essential to plug the UPS in for at least 24 hours every four to six months to ensure full recharge of the batteries. Failure to recharge the batteries peri- odically will result in permanent degradation of battery capacity.

UPStation GXT

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AC INPUT BATTERY UPS ON

BYPASS

The UPStation GXT2 is designed to allow the user to safely replace the internal batteries. Read the safety cautions before proceeding. Contact your local dealer or Liebert representative to obtain the appropriate replacement battery kit part number and pricing.

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Contents Power Availability GXT2-6000RT230& GXT2-4500RT230Page Table of Contents Maintenance TroubleshootingSpecifications Operating InstructionsImportant Safety Instructions Glossary of Symbols Introduction Rectifier/Power Factor Correction PFC Circuit Battery ChargerInverter System DescriptionDC-to-DC Converter BatteryDynamic Bypass Main Frame and Electronics Major ComponentsInternal Battery Packs GXT2, rear viewRemovable Power Distribution Box Power distribution boxes, basic, optionalGXT2 Configuration Program WHAT’S IncludedInstall the Main Cabinet Installation and ConfigurationTower UPS Installation Rack-Mount UPS InstallationInstalling the Adjustable Rack-Mount Kit-Sold Separately QuantityM4 nuts External Battery Cabinet Installation Connect the Internal Batteries Using the External Connector Connect Input/Output PowerStorage Distribution Box Electrical ConnectionsElectrical specifications PD-CEHDWR and PD-CEHDWRBYP Terminal Block ConnectionsInitial START-UP and Electrical Checks Configuration Program What You Will NeedControls and Indicators ON/Alarm Silence/Manual Battery Test ButtonStandby/Manual Bypass Button Load Level Indicators 4 Green, 1 Amber Battery Level Indicators 5 GreenFault Indicator LED Red Bypass Indicator LED AmberNormal Mode Operation Battery Mode OperationBypass Mode Operation Battery Recharge ModePin 4 Remote Shutdown on Battery Communications Interface PortCommunications DB-9 pin assignmentUPS Intelligent Communications Remote Emergency Power Off Repo switch connection diagramInternal Battery MaintenanceInternal Battery Replacement PD-CEHDWR-Manual Bypass Switch Available Disconnect AC Power ConnectionsReconnect Indicator meanings TroubleshootingLED status Diagnosis/Audible alarm Troubleshooting guide Troubleshooting guide cont’d Alarm conditionsBattery run times Auto-Learning Battery Run Times Specifications UPS specificationsPower distribution specifications External battery cabinet specifications Model NumberSpecifications Page Company Behind the Products Technical Support/ServiceLocations