Liebert XDC user manual High Voltage Connections, Connecting High-Voltage Cables

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Product Description

1.5High Voltage Connections

Make sure the actual supply voltage and frequency correspond to the voltage and frequency indicated on the Liebert XDC’s rating plate.

Connect cables for high voltage supply to the electrical box in the Liebert XDC according to Figures 5, 11 and 12 and make sure that the phases are correctly connected.

! WARNING

Risk of electric shock. Can cause death or injury.

Disconnect all local and electric remote power supplies before working within.

! CAUTION

Risk of sharp edges and heavy parts. May cause personal injury or equipment damage. Wear gloves to prevent injury to hands.

Damage to wiring or components can make unit unsafe to operate.

Use caution when installing wiring to prevent damage to factory wiring. Install protective bushings in wiring knockouts as required

Do not disturb factory wiring or route field-installed wiring over electrical terminals. Use NEC Class 1 wiring for all hazardous voltage electrical power supplies.

Check and retighten all wiring connections before starting the unit.

NOTE

Before beginning to install the Liebert XDC, read all instructions, verify that all the parts are included and check the nameplate to be sure the Liebert XDC voltage matches available utility power.

Follow all local codes.

1.5.1Connecting High-Voltage Cables

1.Turn the Liebert XDC’s primary disconnect switch to the Off position (see Figure 10). Open the front doors and push down on the enclosure cover latch to open the hazardous voltage enclosure cover.

Figure 10 Front view of Liebert XDC and electrical enclosures

Primary Disconnect	Secondary Disconnect
Switch	Switch
	Status Lamps
	User Interface

Enclosure Cover Latch

Enclosure Cover Latch

	Hazardous Voltage	Hazardous Voltage
	Enclosure Cover	Hazardous Voltage
	Enclosure Cover	Enclosure Cover
		Enclosure Cover
	PRIMARY	SECONDARY
	ELECTRICAL ENCLOSURE	ELECTRICAL ENCLOSURE
	COMPRESSOR SECTION	PUMP SECTION

10

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Contents Liebert XDC Voltage-phase-frequency Density system = 380/415-3ph-50Hz General Safety GuidelinesExample XDC160AA Table of Contents Alarm Descriptions and Solutions SpecificationsFigures Tables General Product Information Equipment InspectionEquipment Handling Product DescriptionHandling With Skid Removal of SkidRemove tie-down brackets Liebert XDC dimensions, weight Mechanical ConsiderationsRemoving Piano Jacks Positioning the Liebert XDCPiping locations Liebert XDC piping connection sizesPlacing the Liebert XDC on a Floor Stand Detail a Liebert XDC water/glycol piping connection SizesTOP View of Floor Stand Dimensions and clearances for Liebert XDC on floor stand Positioning the Liebert XDC with Floor StandConnecting High-Voltage Cables High Voltage ConnectionsElectrical enclosure knockout locations for field wiring Contactors Extra Low Voltage Connections Liebert XDC heat rejection connection pointsField Connections-Optional for All Units Field Connections-All UnitsField Connections-Air Cooled Units only Extra Low Voltage field connections points European Union Fluorinated Greenhouse Gas Requirements Recommended Pipe SizeLiebert XDC Interconnection With Liebert XD Cooling Module Supply, return pipe sizes for Liebert XD refrigerant loopPiping Installation-R-134a Pumped Circuit Piping Installation MethodPiping Mains Bypass flow controllers for a Liebert XDC-based system Bypass Flow ControllersRequired Number Insulation Evacuation and Leak Check-R-134a Pumped CircuitLiebert XDP Liebert XDC Filling the Pumped Circuit-R-134a System refrigerant charge for the supply and return mainsCalculating refrigerant charge-example Calculating Refrigerant Charge-ExampleWorksheet to calculate refrigerant charge Install Double Discharge Risers Double discharge riser layoutPage Installation data-Lee-Temp, one-circuit, four-fan model See for details on piping connections Piping Schematic General arrangement air cooled Liebert XDC Lee-Temp Control Recommended refrigerant line sizes, DX R-407c, OD copperRecommended refrigerant line sizes for DCSL616 For mounting instructions, refer to Figure Lee-Temp Piping Lee-Temp Control Materials SuppliedFilling the Direct Expansion DX Circuit-R-407c Indoor unit refrigerant charge-R-407cOutdoor air condenser charge-R-407c Indoor water/glycol cooled module R-407C refrigerant chargeInstallation Checklist Liebert XDC pump light indicator Checklist for Liebert XDC StartupIndicator Lights Description Green Red Refrigerant Type Compressor oil typesCompressor Type 407c Liebert XDC system is now ready to be turned on Feature Overview Microprocessor ControlDisplay User interface keypad functionsFeature Overview Viewing or Changing SettingsControls Main MenuSetpoint functions, default values and allowable ranges SetpointsMIN Temp SP HI AIR TempActive Alarms Alarm HistoryStatus TimeSetup Operation RestartDegrees Pump Start TDPump OFF TD Lead PumpLead Tandem DipswchSetpt Password Setup PasswordAlarm Enable Calibrate SensorsCOM Alarm Enable Alarm Time DelayCustom Alarms Diagnostics Custom TextAlarm Descriptions Alarm Descriptions and SolutionsRed and Green Lamp Indicators Alarm Time Delays Enable / Disable AlarmsView Active Alarms View Alarm History System Shutdown CausesTroubleshooting Liebert XDC troubleshootingToo warm Fluorinated Greenhouse Gas Requirements MaintenanceAir Cooled Condenser Testing the Water Regulating Valve Function Glycol Solution MaintenanceWater/Glycol Floor Stand Condenser Shell and Tube CondensersSpecifications Liebert XDC specificationsPerformance Data Heat Rejection EquipmentPiping Connections Performance Data204 Page Ne t ItiTi n That