Liebert user manual Extra Low Voltage Connections, Liebert XDC heat rejection connection points

Page 19

Product Description

Figure 15 50Hz models high voltage connections—secondary disconnect switch

	Power Connection
	From Primary
	Power Block
Secondary	Ground Lug
Disconnect
Switch	Pump Circuit
	Pump Circuit
	Breakers
	Busbar
Pump Contactors

Transformer 2

Power Block

Fuse Blocks

Transformer 1

1.6Extra Low Voltage Connections

Extra Low Voltage (ELV) power output is 30V and 100VA or less.

1.Turn off all unit power before connecting cables or wires. Failure to do so may damage this equipment.

2.Route low voltage electrical connections through the appropriate knockouts as shown in Figure 17.

3.User interface and temperature/humidity sensor wire is NEC Class 2. All electrical installation must comply with all national, state and local requirements.

Figure 16 Liebert XDC heat rejection connection points

HEAT REJECTION CONNECTION Field-supplied 24V. Class 1 wiring to interlock heat rejection from pigtails: 70A and 71A - Compressor 1 circuit 70B and 71B - Compressor 2 circuit

70C and 71C - Dual Source relay (optional)

Electrical handy box, factory-installed with cover

13

Image 19

Contents Liebert XDC Voltage-phase-frequency Density system = 380/415-3ph-50Hz General Safety GuidelinesExample XDC160AA Table of Contents Specifications Alarm Descriptions and SolutionsFigures Tables Product Description General Product InformationEquipment Inspection Equipment HandlingRemoval of Skid Handling With SkidRemove tie-down brackets Positioning the Liebert XDC Liebert XDC dimensions, weightMechanical Considerations Removing Piano JacksLiebert 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-Optional for All Units Field Connections-All UnitsField Connections-Air Cooled Units only Extra Low Voltage field connections points Supply, return pipe sizes for Liebert XD refrigerant loop European Union Fluorinated Greenhouse Gas RequirementsRecommended Pipe Size Liebert XDC Interconnection With Liebert XD Cooling ModulePiping 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 System refrigerant charge for the supply and return mains Filling the Pumped Circuit-R-134aCalculating refrigerant charge-example Calculating Refrigerant Charge-ExampleWorksheet to calculate refrigerant charge 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 water/glycol cooled module R-407C refrigerant charge Filling the Direct Expansion DX Circuit-R-407cIndoor unit refrigerant charge-R-407c Outdoor air condenser charge-R-407cInstallation 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 User interface keypad functions Feature OverviewMicroprocessor Control DisplayMain Menu Feature OverviewViewing or Changing Settings ControlsHI AIR Temp Setpoint functions, default values and allowable rangesSetpoints MIN Temp SPTime Active AlarmsAlarm History StatusPump Start TD Setup OperationRestart DegreesDipswch Pump OFF TDLead Pump Lead TandemSetup Password Setpt PasswordCalibrate Sensors Alarm EnableCOM Alarm Enable Alarm Time DelayCustom Alarms Custom Text DiagnosticsAlarm Descriptions and Solutions Alarm DescriptionsRed and Green Lamp Indicators Alarm Time Delays Enable / Disable AlarmsView Active Alarms System Shutdown Causes View Alarm HistoryLiebert XDC troubleshooting TroubleshootingToo warm Fluorinated Greenhouse Gas Requirements MaintenanceAir Cooled Condenser Shell and Tube Condensers Testing the Water Regulating Valve FunctionGlycol Solution Maintenance Water/Glycol Floor Stand CondenserLiebert XDC specifications SpecificationsPerformance Data Performance DataHeat Rejection Equipment Piping Connections204 Page That Ne tIti Ti n