Liebert XDP160RA, XDP160RM, XDP160RC System Shutdown Causes, Unit Is Off By Refrig Sens Fail

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Alarm Descriptions and Solutions

SMOKE DETECTED—Activated when the Customer Input 1 is configured for “Smoke” and 24VAC is applied to the input. This alarm is reset when the 24VAC is removed.

NOTE

This is not a room smoke detector and is not intended to replace external smoke detectors.

SUPPLY CW SENSOR FAILURE—Activated when the control no longer senses a signal from the Supply CW sensor. This alarm will reset when the signal is returned.

SUPPLY REFRIGERANT SENSOR FAILURE—Activated when the control no longer senses a signal from the supply refrigerant sensor. This alarm will reset when the signal is returned.

UNIT CODE MISSING—Activated when a valid unit code has not been entered and saved. To reset, enter valid unit code, save and execute.

WATER UNDER FLOOR—Activated when Customer Input 1 is configured for “Water Alarm” and 24VAC is applied to the input. This alarm is reset when the 24VAC is removed.

6.2Warning Descriptions

LOSS OF POWER—Activated when the unit is On and operational and 24VAC power to the control is lost. This alarm will be emitted when power is restored to the control. The Liebert XDP will restart at a user-defined time delay after power is restored. Once activated, the alarm will remain activated for 30 minutes.

PUMP 1 HRS EXCEED—Activated when the Pump 1 Actual Hours exceeds the user-specified limit. To reset, Actual Hours must be reset to 0.

PUMP 2 HRS EXCEED—Activated when the Pump 2 Actual Hours exceeds the user-specified limit. To reset, Actual Hours must be reset to 0.

6.3System Shutdown Causes

Unit Is Off By Refrig Sens Fail

The control has lost its signal from the refrigerant temperature sensor. The control has no way of controlling the refrigerant temperature, so the unit is shut off. Main power (disconnect switch) must be turned Off, then back On to clear this alarm.

Unit Is Off By High CW Temp

The entering chilled water temperature is too high to keep the refrigerant pump(s) running normally. If a HIGH CW TEMP alarm occurs and the refrigerant pump loses flow (differential pressure), then the Liebert XDP will go into a pre-chill mode. The Liebert XDP can attempt to start again only if the entering chilled water temperature drops below the HIGH CW TEMP setpoint.

Unit Is Off By Pump Short Cycle

The control was unable to get a pump started upon startup or after a loss of differential pressure. The control looks at the SHORT CYCLE time delay. If it cannot establish differential pressure within that amount of time, the unit is shut down. Main power (disconnect switch) must be turned Off, then back On to clear this alarm.

Unit Is Off By Low Refrig Temp

The control was unable to raise the refrigerant temperature to the calculated refrigerant temperature control point. The unit is shut down because if the control cannot raise the refrigerant temperature to the calculated refrigerant temperature control point, water may condense on the refrigerant piping and receiving coils. Main power (disconnect switch) must be turned Off, then back On to clear this alarm.

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Contents Liebert XDP with Liebert iCOM Control Page Table of Contents Start the Liebert XDP with Liebert Icom Alarm Descriptions and SolutionsSpecifications Figures Tables Important Safety Instructions = 460V-3ph-60Hz Place holder Example XDP160RAPumping Unit Redundancy Place holder Revision Level Liebert Product/System Description General Product InformationEquipment Inspection Minimum LoadEquipment Handling Handling the Liebert XDP While it is on Skid and PackagedRemoving the Unit from the Skid Using a Forklift Unpacking the Liebert XDPRemoving the Unit from the Skid using Rigging Use a forklift to remove the Liebert XDP from the skidMoving the Liebert XDP Using Piano Jacks Spreader Bars BracketRemoving the Unit from the Piano Jacks Securing the Liebert XDP to piano jacksPositioning the Liebert XDP Liebert XDP dimensionsMechanical Considerations Model Pipe Connection Point 50/60 Hz Electrical ConsiderationsUnit piping outlet connection sizes, inches, OD Cu Connecting High-Voltage Cables Front view of Liebert XDP and electrical enclosureHigh voltage connections-60Hz Extra Low Voltage ELV Connections High voltage connections-50HzConnecting the remote temperature/humidity sensors DIP Switch and Jumper Settings for Remote Sensors DIP switch and jumper settingsField Connections-Optional for All Units Liebert XDP extra low voltage field connections pointsRemote Sensor Installation-Proper Placement Suggested remote sensor placementRecommended Pipe Size European Union Fluorinated Greenhouse Gas RequirementsConnection Sizes Supply, return pipe sizes for refrigerant loopLiebert XDP Interconnection with Liebert XD Cooling Modules Piping Installation MethodsPiping Installation-R-134a Pumped Circuit Liebert XDPBypass flow controllers for a Liebert XDP-based system Piping MainsBypass Flow Controller Required Number of OpenPiping Details-Shutoff/Isolation Valves Bypass flow controller arrangementFloor Supply Return Liebert Evacuation and Leak Check-R-134a Pumped CircuitInsulation Filling the Pumped Circuit-R-134a System refrigerant charge for the supply and return mainsWorksheet to calculate refrigerant charge Calculating Refrigerant Charge-ExampleCalculating refrigerant charge-example Checklist for Proper Installation Liebert iCOM Components and Functions Escape Key Down Arrow KeyIcon Key Name Function Display Lamp IndicatorsKeyboard icons and functions Unit Sensor a Sensor B Pump Operation Roo m Data Room Data Accessing Menus and Settings Viewing DataNavigating Through the Liebert iCOM Display Cooling Module Overview ACK High Chilled Water TempEntering the Password Entering the passwordHighlight the setting to be changed by pressing Enter Changing Liebert iCOM’s Display SettingsChanging Operational Settings English USGraphical Data Record Liebert iCOM User Menu Icons and LegendLiebert XDP User Menu screen Event Log Liebert iCOM User Menu ScreensSpare Parts SET Alarms page 1 Sensor Data screen, page 1 Sensor Data screen, page 2 U401 U402 Online XDV8SKXDH32SK XDO20SK 20 KWService Mode Liebert iCOM Service Menu Icons and LegendSetpoints Maintenance Diagnostics Set Alarms SettingsLiebert iCOM Service Menu Screens Liebert XDP Service Menu screenLiebert iCOM Control-Firmware Version XP1.00.010.STD Maintenance-Basic Settings screen, page 1 Maintenance-Pump 1 Settings screen, page 2 Maintenance-Pump 2 Settings screen, page 3 Diagnostics/Service Mode screen, page 1 Manual Mode Control Type-Not currently used Diagnostics/Service Mode screen, page 5 Set Alarms screen, page 1 Set Alarms screen, page 2 LOW Temp Sensor a Enable ALM Delay EN-DIS TypeHigh Temp Sensor a Enable ALM High Temp Sensor B Enable ALMSupply Refrigerant Sensor Enable ALM High Refrigerant Temp Enable ALMLOW Refrigerant Temp Enable ALM Loss of Flow Pump Enable ALMCustomer Input Enable ALM Condensation Detected Enable ALMFAN Failure Enable ALM Smoke Detected Enable ALMS601 S612 S801 MAC GBPSystem/Network Setup screen-Unit, page 1 UnitS834 S835 S401 Local Module Shutdown Enable ALM Node ID Delay EN-DIS TypeCondensation Detected Enable Sensor Failure Enable ALMNode ID Delay EN-DIS Type Indicator Lights Description Green Red Checklist for Liebert XDP StartupLiebert XDP pump light indicator-208V and 400V units Starting the Liebert XDP with Liebert iCOM Controller System R-134a liquid level at 160kW loadAlarm Descriptions Alarm Descriptions and Solutions Unit Is Off By High CW Temp System Shutdown CausesUnit Is Off By Refrig Sens Fail Unit Is Off By Pump Short CycleTroubleshooting the Liebert XDP Symptom Possible Cause Check or RemedySee Clogged Filter Dryer and/or Impeller symptom Maintenance Fluorinated Greenhouse Gas RequirementsLiebert XDP160 specifications Liebert Corporation Dearborn Drive Box Columbus, OH 2006/42/EC 2004/108/EC 2006/95/EC 97/23/ECTwor k Ne tIs t Care
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