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Liebert 3000 manual Liebert Challenger, Precision CoolingFor Business-Critical Continuity

Models: 3000

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Precision Cooling For Business-CriticalContinuity

Precision Cooling For Business-CriticalContinuity

Liebert Challenger™ 3000

Operation & Maintenance Manual - 3 & 5 Ton, 50 & 60Hz

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Liebert 3000 manual Liebert Challenger, Precision CoolingFor Business-Critical Continuity

Contents

Precision CoolingFor Business-Critical Continuity Liebert ChallengerPage TABLE OF CONTENTS 3.8.1 Show Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 ALARM DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLES FIGURESPage 1.0INTRODUCTION 1.1System Descriptions1.1.1Compressorized Systems 1.1.2GLYCOOL Chilled Glycol Cooling Systems1.2Start-UpProcedure Figure 1 Advanced microprocessor control panel 2.1BasicsCompressor Overload Loss of Power Alarms AvailableCustom Alarms 1 to 4 Programmed Alarm Messages Operation with Advanced Microprocessor Controls2.4.1Active Alarms 2.4Status/Alarm Data2.4.3Alarm History Log 2.2Status DisplayTable 1 Default setpoints and ranges 2.5Setpoints/Setup2.4.4Run Hours Log 2.4.5Analog SensorsSetup Operation 2.5.2Setup SystemSetup functions, default values and ranges Show DIP SwitchesDIP switch settings Select OptionsAlarm default time delays Setup AlarmsSelect Control Type TableHumidity HUM Control Method Standard Custom Alarm MessagesSet Status Display Analog SetupCalibrate Actuator Show Inputs 2.5.3Run DiagnosticsTest Outputs Test Control Board2.6Date and Time 2.5.4Change Passwords2.7Status Display 2.8Control Circuit Board2.8.2Non-VolatileMemory 2.8.3DIP Switches2.8.4Control Outputs Table 6 Control output LEDs3.1Basics Page 3.4.1Active Alarms 3.4View/Set Alarms3.4.2Alarm History Log 3.2Status DisplayTable 7 Alarm default time delays 3.4.3Setup Alarms3.4.6Setup Water Detect Floor Plan 3.4.4Setup Custom Alarms3.7.1Setup Operation 3.7System SetupCold Start Delay Default setpoints and rangesDefault Settings and Ranges Auto Restart DelaySetup functions, default values and ranges IR Flush Overfill infrared humidifiers only3.7.3Calibrate Sensors 3.7.2Select Options3.7.4Calibrate Valve Actuator Table 10 Unit options3.7.8Change Passwords 3.8Run Diagnostics3.7.6Select Humidity Sensing Mode 3.7.7Set Status Display3.8.2Test Outputs 3.8.1Show Inputs3.8.3Test Control Board Table 11 Setting options 3.8.4DIP Switches3.9Date and Time 3.10Plot Graphs3.11.4Setup Digital Inputs 3.11.2Setup Analog Inputs3.11.1Read Analog Inputs Slope3.12.1View 24 Hour Run Time History 3.13Control Circuit board3.12.2View Total Run Hours 3.13.1LCD Contrast3.13.2Nonvolatile Memory 3.13.3DIP Switches3.13.4Control Outputs Table 12 Control output LEDs4.1.1Cooling/Heating Required, in Percent % 4.1Temperature ControlPID Control Chilled Water or SCR Reheats only Intelligent Control Chilled Water onlyGLYCOOL Cooling 4.1.3Cooling OperationDual Cooling Source Chilled Water CoolingHot Water Reheat 4.1.4Heating Operation Electric ReheatPID Control Chilled Water or SCR Reheats only Intelligent Control Chilled Water only4.2.4Humidification Operation System Activation 4.3Control Types4.3.1Proportional Control 4.3.3Intelligent Control Chilled Water only 4.5Additional Features 4.4Load Control Features4.5.1Connecting the Analog Sensors 4.4.1Short Cycle ControlFigure 6 Connecting the LT750 Installation—LT750DIP Switch Settings4.5.2Water Detection Display Figure 5 Analog input jumpersPhysical Connections SetupCalibration Liebert Monitoring Devices and Software 4.6Communications5.0ALARM DESCRIPTIONS 5.1Standard Alarms5.1.1Change Filter 5.1.7High Temperature 5.1.3Custom Alarms5.1.2Compressor Overload 5.1.4High Head Pressure5.1.11Loss of Power 5.1.9Humidifier Problem Infrared Humidifiers5.1.14Low Temperature Steam Generating Canister Humidifiers5.2.1Loss of Water Flow 5.1.16Short Cycle5.2.2Smoke Detected 5.2.3Standby GC Pump OnFan Safety Switch 6.0COMPONENT OPERATION AND MAINTENANCE6.1.1Environmental Control Functions CoolingSmoke Detector FirestatWater Detection Sensor Figure 7 Liebert leak detection unitsRemote Shutdown 6.2Filters6.3.1Fan Impellers and Bearings 6.3Blower Package6.3.2Belt 6.3.3Air Distribution6.4.2Discharge Pressure 6.4.1Suction Pressure6.4.3Superheat Table 18 Suction pressuresAdjustment Adjustment6.4.4Thermostatic Expansion Valve Operation 6.4.5Hot Gas Bypass Valve Operation6.4.6Air Cooled Condenser Figure 9 Outdoor fan/condenser configurationRegulating Valve Figure 10 Johnson Controls valve adjustmentFigure 11 Metrex valve adjustment Glycol Solution Maintenance6.4.8Compressor Functional Check 6.4.9Compressor ReplacementMechanical Failure Electrical Failure Compressor Replacement Procedure6.5.1Infrared Humidifier Cleaning the PanRemoving the Pan Changing Humidifier LampsAutoflush Operation Autoflush Infrared Humidifier Cleaning SystemAutoflush Controls 6.5.2Steam Generating HumidifierOperation Component Operation and MaintenanceControls Replacing the Canister When replacing the canisterTable 20 Humidifier canister part numbers Drain Tempering Feature Circuit Board AdjustmentsFigure 14 Canister replacement Table 21 Blower troubleshooting 7.0TROUBLESHOOTINGTable 22 Chilled water troubleshooting Troubleshooting Troubleshooting Table 25 Glycol pump troubleshooting Table 24 Dehumidification troubleshootingTable 26 Infrared humidifier troubleshooting TroubleshootingTroubleshooting Troubleshooting Table 28 Reheat troubleshootingFilters 8.0MONTHLY MAINTENANCE INSPECTION CHECKLISTSteam Generating Humidifier Blower SectionFilters 9.0SEMIANNUAL MAINTENANCE INSPECTION CHECKLISTBlower Section CompressorSemiannual Maintenance Inspection Checklist Page 0f Mission-CriticalData And Applications Ensuring The High Availabilitythat from