Liebert 3000 manual Electrical Failure, Compressor Replacement Procedure

Page 60

Component Operation and Maintenance

Electrical Failure

An electrical failure will be indicated by a distinct pungent odor. If a severe burnout has occurred, the oil will be black and acidic.

In the event that there is an electrical failure and a complete burnout of the refrigeration compressor motor, the proper procedures must be performed in order to clean the system to remove any acids that would cause a future failure.

! CAUTION

Damage to a replacement compressor caused by improper system cleaning constitutes abuse under the terms of the warranty, and the WARRANTY WILL BE VOID.

There are two kits that can be used with a complete compressor burnout - Sporlan System Cleaner and Alco Dri-Kleener. Follow the manufacturer's procedure.

! CAUTION

Avoid touching or contacting the gas and oils with exposed skin. Severe burns will result. Use long rubber gloves in handling contaminated parts.

Compressor Replacement Procedure

Replacement compressors are available from your Liebert supplier. They will be shipped in a reusable crate to the job site as required by the service contractor.

Upon shipping a replacement compressor, the service contractor will be billed in full for the compres- sor until the replacement has been returned to the factory.

The compressor should be returned in the same container used for shipping to the job. The possible damage causes or conditions that were found should be recorded by marking the compressor return tag.

1.Disconnect power.

2.Attach suction and discharge gauges to access fittings.

3.Recover refrigerant using standard recovery procedures and equipment. Use a filter-drier when charging the system with recovered refrigerant.

! CAUTION

Do not loosen any refrigeration or electrical connections before relieving pressure.

NOTE

Release of refrigerant to the atmosphere is harmful to the environment and is unlawful. Refrigerant must be recycled or discarded in accordance with federal, state, and local regulations.

4.Front seat service valves to isolate the compressor. Reclaim charge from compressor.

5.Remove service valves, pressure switch capillaries, and disconnect all electrical connections.

6.Remove failed compressor.

! CAUTION

A scroll compressor must rotate in the proper direction. Record compressor motor connections when removing failed compressor. Wire the replacement compressor motor the same way to maintain proper rotation direction.

7.Install replacement compressor and make all connections.

8.Pressurize and leak test the system at approximately 150 PSIG (1034 kPa) pressure.

9.Follow manufacturer's instructions for clean-out kits.

10.Follow charging instructions as stated in the installation manual, Liebert part number SL-11925.

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Contents Liebert Challenger Page Table of Contents Run Diagnostics Alarm Descriptions Component Operation and MaintenanceHumidifier Figures Page System Descriptions Compressorized SystemsGlycool Chilled Glycol Cooling Systems Chilled Water SystemsStart-Up Procedure Basics Advanced microprocessor control panelAdvanced microprocessor a control for Challenger Status/Alarm Data Status DisplayMain Menu MENU/ESC Setpoints/Setup Default setpoints and rangesRun Hours Log Analog SensorsSetup System Setup OperationShow DIP Switches Select OptionsCalibrate Sensors Setup Alarms Alarm default time delaysDefault Time Alarm Delay secondsStandard Custom Alarm Messages Humidity HUM Control MethodAnalog Setup Set Status DisplayCalibrate Actuator Run Diagnostics Show InputsTest Outputs Test Control BoardChange Passwords Date and TimeControl Circuit Board LCD Display ContrastDIP Switches Non-Volatile MemoryControl Outputs Control output LEDsOperation with Advanced Microprocessor with Graphics Control Advanced microprocessor with graphics control menu View/Set Alarms See 3.7.7 Set Status DisplaySetup Alarms Setup Custom Alarms Setup Water Detect Floor PlanView Water Detect Floor Plan for Optional LTM1000/LT750 System Setup Cold Start DelayOperating Status View/Set Control SetpointsAuto Restart Delay Default Settings and RangesIR Flush Overfill infrared humidifiers only Chilled Water/Hot Water/Econ-O-Coil FlushCalibrate Valve Actuator Select Control Algorithm Chilled Water and SCR Reheats onlyRun Diagnostics Select Humidity Sensing ModeShow Inputs Setting options Plot GraphsModify Plot Scales Analog/Digital Inputs View Run Hours LogView 24 Hour Run Time History View Total Run HoursLCD Contrast Nonvolatile Memory Temperature Control Cooling/Heating Required, in Percent %Response to Control Types Proportional Control PID Control Chilled Water or SCR Reheats onlyGlycool Cooling Dual Cooling SourceChilled Water Cooling Cooling/dehumidification load status responseHumidity Control Heating Operation Electric ReheatHot Water Reheat SCR Electric Reheat Requires Special Control SoftwareControl Types Humidification Operation System ActivationProportional Control Time between peaks x 5% Load Control Features Additional FeaturesConnecting the Analog Sensors Short Cycle ControlInstallation-LT750 DIP Switch Settings FaultWater Detection Display LT750 Environmental UnitSetup Physical ConnectionsCalibration Communications Liebert Monitoring Devices and SoftwareStandard Alarms Change FilterCustom Alarms High TemperatureCompressor Overload High Head PressureHigh Temperature and Low Temperature Simultaneously Humidifier Problem Infrared HumidifiersLoss of Power Low TemperatureOptional/Custom Alarms System Testing Firestat Smoke DetectorWater Detection Sensor Liebert unit Recommended Liquitect location Floor drainZone leak detection kit installation scenarios FiltersRemote Shutdown Distance From UnitBlower Package Fan Impellers and BearingsBelt Air DistributionRefrigeration System Suction PressureDischarge Pressure SuperheatAdjustment Thermostatic Expansion Valve OperationHot Gas Bypass Valve Operation Outdoor fan/condenser configuration Air Cooled CondenserWater/Glycol Cooled Condensers Coaxial Condenser Regulating ValveValve spring guide Glycol Solution Maintenance Adjusting Collar NutCompressor Replacement Compressor Functional CheckMechanical Failure Compressor Replacement Procedure Electrical FailureCleaning the Pan HumidifierInfrared Humidifier Removing the PanAutoflush Infrared Humidifier Cleaning System Autoflush OperationAutoflush Controls Steam Generating HumidifierOperation ControlsReplacing the Canister Humidifier canister part numbersPart Capacity Number Voltage Lbs/hr kg/hr 200-460Circuit Board Adjustments Drain Tempering FeatureBlower troubleshooting Chilled water troubleshootingSymptom Possible Cause Check or Remedy Compressor and refrigeration system troubleshooting Compressor and refrigeration system troubleshooting Dehumidification troubleshooting Glycol pump troubleshootingInfrared humidifier troubleshooting See 6.4.8 Compressor Functional Check and TableSteam generating humidifier troubleshooting Reheat troubleshooting Filters Steam Generating Humidifier Blower SectionCompressor Air Cooled Condenser if applicableFilters Water/Glycol Condenser if applicableGlycol Pump Electrical PanelSemiannual Maintenance Inspection Checklist Page Ne t ItiTi n That
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3000 specifications

The Liebert 3000 is a cutting-edge power protection solution designed to provide reliable and efficient backup power for critical applications. This uninterruptible power supply (UPS) system is engineered to safeguard sensitive electronic equipment from power disturbances, ensuring uninterrupted operations in data centers, telecommunications, and industrial environments.

One of the standout features of the Liebert 3000 is its high-efficiency design. With an efficiency rating of up to 94%, the system minimizes energy loss, resulting in lower operational costs and a reduced carbon footprint. This is particularly important in today's environmentally conscious climate, as organizations strive to meet sustainability goals while maintaining top-tier performance.

The Liebert 3000 employs advanced technologies to enhance its functionality. It incorporates online double-conversion technology, which provides a continuous supply of clean and regulated power. This technology ensures that connected loads receive stable voltage and frequency, shielding them from voltage spikes, sags, and outages. Additionally, the UPS offers features such as automatic battery testing, which helps ensure peak battery performance and reliability.

Another key characteristic of the Liebert 3000 is its modular design, allowing for flexible scalability. This means that organizations can easily expand the capacity of their UPS system as their power needs grow, without the need for extensive system overhauls. The modular architecture also facilitates simplified maintenance and reduces downtime, as individual modules can be serviced without interrupting power to the critical load.

The system is equipped with comprehensive monitoring and management capabilities. The Liebert 3000 provides real-time data on power usage, battery status, and system performance, enabling facility managers to make informed decisions and proactively address potential issues. The integration of remote management tools allows for seamless monitoring from anywhere, providing peace of mind for operators.

Overall, the Liebert 3000 combines high efficiency, advanced technology, and flexible design to deliver a robust power protection solution. Its reliability and performance make it a preferred choice for organizations seeking to protect their critical infrastructure while enhancing operational efficiency and sustainability. As businesses continue to rely on technology for their everyday operations, the Liebert 3000 stands out as a dependable safeguard against the uncertainties of power quality.
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