Liebert user manual General arrangement air cooled Liebert XDC Lee-Temp Control

Page 33

Piping and Filling with Refrigerant: R-134a and R-407c Circuits

Figure 27 General arrangement air cooled Liebert XDC Lee-Temp Control

Condenser Coil

Inverted Trap * on discharge line to extend above base of coil by a minimum of 7-1/2" (190mm)

Check

Head Pressure Valve

Control with

Integral Check

Valve Lee-Temp

Receiver

Additional

Piping

Assembly **

Rotalock

Valve **

1/4" (6.4mm) Pressure Relief Valve **

Traps * every 25 ft. (7.6m) of rise on hot gas line only

Return

LiquidCondenser

from

Sight Glass

Some Models

Have 2 Sight Glasses

Standard Piping

Assembly **

Single XDC Circuit Shown

Liquid/Return

Hot Gas/Discharge

Field-Supplied Piping

Factory-Supplied Piping

*Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance.

** Components supplied by Liebert and must be field-installed.

DPN000937 Pg. 4, Rev 9

Table 12 Recommended refrigerant line sizes, DX R-407c, OD copper

Liebert XDC 160

Equivalent	*Hot Gas Line,
Length, ft., (m)	in.	Liquid Line, in.

50 (15)	1-1/8	7/8

100 (30)	1-1/8	1-1/8

150 (45)	1-3/8	1-1/8

200 (60)	1-3/8	1-1/8

*Double risers are required when hot gas vertical rise is 15 feet or more (see 2.6 - Install Double Discharge Risers).

27

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Contents Liebert XDC General Safety Guidelines Voltage-phase-frequency Density system = 380/415-3ph-50HzExample XDC160AA 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-All Units Field Connections-Optional for All UnitsField Connections-Air Cooled Units only 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 Installation Method Piping Installation-R-134a Pumped CircuitPiping Mains Bypass Flow Controllers Bypass flow controllers for a Liebert XDC-based systemRequired Number Evacuation and Leak Check-R-134a Pumped Circuit InsulationLiebert 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 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 Checklist for Liebert XDC Startup Liebert XDC pump light indicatorIndicator Lights Description Green Red Compressor oil types Refrigerant TypeCompressor Type 407c 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 EnableAlarm Time Delay COM Alarm EnableCustom Alarms Custom Text DiagnosticsAlarm Descriptions and Solutions Alarm DescriptionsRed and Green Lamp Indicators Enable / Disable Alarms Alarm Time DelaysView Active Alarms System Shutdown Causes View Alarm HistoryLiebert XDC troubleshooting TroubleshootingToo warm Maintenance Fluorinated Greenhouse Gas RequirementsAir Cooled Condenser 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