Liebert XDC user manual Red and Green Lamp Indicators

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Alarm Descriptions and Solutions

•SHORT CYCLE C1A – Activated when compressor 1A turns On, Off, then back On, 5 times within 10 minutes, or 10 times within 1 hour.

•SHORT CYCLE C1B – Activated when compressor 1B turns On, Off, then back On, 5 times within 10 minutes, or 10 times within 1 hour.

•SHORT CYCLE C2A – Activated when compressor 2A turns On, Off, then back On, 5 times within 10 minutes, or 10 times within 1 hour.

•SHORT CYCLE C2B – Activated when compressor 2B turns On, Off, then back On, 5 times within 10 minutes, or 10 times within 1 hour.

•HIGH REFRIGERANT TEMP 1 – Activated when the refrigerant temperature sensed from refrigerant temperature sensor 1, exceeds the user specified setpoint. See 5.3.2 - SETPOINTS. Alarm will reset itself when the refrigerant temperature drops below the setpoint.

•LOW REFRIGERANT TEMP 1 – Activated when the refrigerant temperature sensed from refrigerant temperature sensor 1, drops 1.5 degrees Fahrenheit below the refrigerant tempera- ture control point. Alarm will reset itself if the refrigerant temperature raises back up before the control shuts down because of low refrigerant temperature.

•FAILED REFRIGERANT SENSOR 1 – Activated when the control stops receiving a signal from the refrigerant temperature sensor 1. If this alarm becomes active, the control will slowly back down cooling over a 9-minute period. This alarm will shut down the Liebert XDC, main power (disconnect switch) must be turned OFF then back ON to clear this alarm.

•HIGH CHILLED WATER TEMP – not currently used.

•LOW CHILLED WATER TEMP – not currently used.

•FAILED CHILLED WATER SENSOR – not currently used.

•VALVE FAILURE – not currently used.

•LOSS OF POWER – Activated when the unit is ON and operational, and 24VAC power to the control is lost to the control. This alarm will be emitted when power is restored to the control (unit). Unit will restart at a user defined time delay after power is restored. See 5.3.8 - SETUP OPERATION. Alarm will reset itself after 30 seconds of run time.

NOTE

Alarms MUST BE ACKNOWLEDGED before they can be RESET. To acknowledge / silence alarms press the Alarm Silence / ? key.

6.2Red and Green Lamp Indicators

Liebert’s XDC has two lamps that indicate the unit’s operating condition, one green, one red. The green lamp lights only when the Liebert XDC is ON and running with no alarms.

The red lamp lights in two instances:

1.If the unit is on and running with an active alarm

OR

2.If the unit is shut down because of an alarm.

The red lamp will flash when an alarm is being annunciated. The red lamp will stop flashing and the beeper in the display will stop beeping when the ALARM SILENCE / ? key is pressed.

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Contents Liebert XDC Example XDC160AA General Safety GuidelinesVoltage-phase-frequency Density system = 380/415-3ph-50Hz Table of Contents Specifications Alarm Descriptions and SolutionsFigures Tables Equipment Inspection General Product InformationEquipment Handling Product DescriptionRemoval of Skid Handling With SkidRemove tie-down brackets Mechanical Considerations Liebert XDC dimensions, weightRemoving Piano Jacks Positioning the Liebert XDCLiebert XDC piping connection sizes Piping locationsPlacing the Liebert XDC on a Floor Stand Liebert XDC water/glycol piping connection Sizes Detail aTOP View of Floor Stand Positioning the Liebert XDC with Floor Stand Dimensions and clearances for Liebert XDC on floor standHigh Voltage Connections Connecting High-Voltage CablesElectrical enclosure knockout locations for field wiring Contactors Liebert XDC heat rejection connection points Extra Low Voltage ConnectionsField Connections-Air Cooled Units only Field Connections-All UnitsField Connections-Optional for All Units Extra Low Voltage field connections points Recommended Pipe Size European Union Fluorinated Greenhouse Gas RequirementsLiebert XDC Interconnection With Liebert XD Cooling Module Supply, return pipe sizes for Liebert XD refrigerant loopPiping Mains Piping Installation MethodPiping Installation-R-134a Pumped Circuit Required Number Bypass Flow ControllersBypass flow controllers for a Liebert XDC-based system Liebert XDP Liebert XDC Evacuation and Leak Check-R-134a Pumped CircuitInsulation System refrigerant charge for the supply and return mains Filling the Pumped Circuit-R-134aWorksheet to calculate refrigerant charge Calculating Refrigerant Charge-ExampleCalculating refrigerant charge-example Double discharge riser layout Install Double Discharge RisersPage Installation data-Lee-Temp, one-circuit, four-fan model See for details on piping connections Piping Schematic Recommended refrigerant line sizes, DX R-407c, OD copper General arrangement air cooled Liebert XDC Lee-Temp ControlRecommended refrigerant line sizes for DCSL616 For mounting instructions, refer to Figure Lee-Temp Control Materials Supplied Lee-Temp PipingIndoor unit refrigerant charge-R-407c Filling the Direct Expansion DX Circuit-R-407cOutdoor air condenser charge-R-407c Indoor water/glycol cooled module R-407C refrigerant chargeInstallation Checklist Indicator Lights Description Green Red Checklist for Liebert XDC StartupLiebert XDC pump light indicator Compressor Type 407c Compressor oil typesRefrigerant Type Liebert XDC system is now ready to be turned on Microprocessor Control Feature OverviewDisplay User interface keypad functionsViewing or Changing Settings Feature OverviewControls Main MenuSetpoints Setpoint functions, default values and allowable rangesMIN Temp SP HI AIR TempAlarm History Active AlarmsStatus TimeRestart Setup OperationDegrees Pump Start TDLead Pump Pump OFF TDLead Tandem DipswchSetup Password Setpt PasswordCalibrate Sensors Alarm EnableCustom Alarms Alarm Time DelayCOM Alarm Enable Custom Text DiagnosticsAlarm Descriptions and Solutions Alarm DescriptionsRed and Green Lamp Indicators View Active Alarms Enable / Disable AlarmsAlarm Time Delays System Shutdown Causes View Alarm HistoryLiebert XDC troubleshooting TroubleshootingToo warm Air Cooled Condenser MaintenanceFluorinated Greenhouse Gas Requirements Glycol Solution Maintenance Testing the Water Regulating Valve FunctionWater/Glycol Floor Stand Condenser Shell and Tube CondensersLiebert XDC specifications SpecificationsHeat Rejection Equipment Performance DataPiping Connections Performance Data204 Page Iti Ne tTi n That
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