Document Outline

• General Safety Guidelines
• 1.0 Product Description
  • 1.1 General Product Information
    • 1.1.1 Product/System Description
      • Figure 1 Liebert XDC components
  • 1.2 Equipment Inspection
  • 1.3 Equipment Handling
    • 1.3.1 Handling With Skid
    • 1.3.2 Removal of Skid
      • Figure 2 Moving Liebert XDC with forklift
      • Figure 3 Remove tie-down brackets
      • Figure 4 Remove pallet, insert piano jacks
    • 1.3.3 Removing Piano Jacks
  • 1.4 Mechanical Considerations
    • 1.4.1 Positioning the Liebert XDC
      • Figure 5 Dimensional data
      • Table 1 Liebert XDC dimensions, weight
      • Figure 6 Piping locations
      • Table 2 Liebert XDC piping connection sizes
    • 1.4.2 Placing the Liebert XDC on a Floor Stand
      • Figure 7 Water/glycol Liebert XDC on a floor stand—positioning and piping connections
      • Table 3 Liebert XDC water/glycol piping connection Sizes
      • Figure 8 Piping locations—floor stand and valve assembly
    • 1.4.3 Positioning the Liebert XDC with Floor Stand
      • Figure 9 Dimensions and clearances for Liebert XDC on floor stand
  • 1.5 High Voltage Connections
    • 1.5.1 Connecting High-Voltage Cables
      • Figure 10 Front view of Liebert XDC and electrical enclosures
      • Figure 11 Electrical enclosure knockout locations for field wiring
      • Figure 12 60Hz models, high voltage connections—primary disconnect switch
      • Figure 13 50Hz models high voltage connections—primary disconnect switch
      • Figure 14 60Hz models high voltage connections—secondary disconnect switch
      • Figure 15 50Hz models high voltage connections—secondary disconnect switch
  • 1.6 Extra Low Voltage Connections
    • Figure 16 Liebert XDC heat rejection connection points
    • Figure 17 Electrical enclosure knockout locations for Extra Low Voltage connections
    • Field Connections—All Units
    • Field Connections—Optional for All Units
    • Field Connections—Air Cooled Units only
      • Figure 18 Extra Low Voltage field connections points
• 2.0 Piping and Filling with Refrigerant: R-134a and R-407c Circuits
  • 2.1 European Union Fluorinated Greenhouse Gas Requirements
  • 2.2 Recommended Pipe Size
    • Table 4 Supply, return pipe sizes for Liebert XD refrigerant loop
  • 2.3 Liebert XDC Interconnection With Liebert XD Cooling Module
    • Figure 19 Liebert XD system diagram
  • 2.4 Piping Installation Method
    • 2.4.1 Piping Installation—R-134a Pumped Circuit
      • Piping Mains
      • Bypass Flow Controllers
        • Table 5 Bypass flow controllers for a Liebert XDC-based system
        • Figure 20 Bypass flow controller details, dimensions
        • Figure 21 Bypass flow controller arrangement
        • Figure 22 Bypass flow controller piping
      • Evacuation and Leak Check—R-134a Pumped Circuit
      • Insulation
  • 2.5 Filling the Pumped Circuit—R-134a
    • Table 6 System R-134a charge for a Liebert XDC with any model Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF
    • Table 7 System refrigerant charge for the supply and return mains
    • Table 8 R-134a refrigerant charge for hard-piped connector lines to and from any model Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF
    • Table 9 R-134a refrigerant charge for Liebert XD Flex Pipe connector lines to and from any model Liebert XDO/Liebert XDH/Liebert XDV/Liebert XDCF
    • 2.5.1 Calculating Refrigerant Charge—Example
      • Table 10 Calculating refrigerant charge—example
      • Table 11 Worksheet to calculate refrigerant charge
    • 2.5.2 Piping for Direct Expansion (DX) Circuit—R-407c Air Cooled Units
  • 2.6 Install Double Discharge Risers
    • Figure 23 Double discharge riser layout
    • Figure 24 Installation data—Lee-Temp, one-circuit, four-fan model
    • Figure 25 Installation data—Lee-Temp, one-circuit, high ambient six-fan model
    • Figure 26 Liebert XDC piping schematic and Lee-Temp heater pad wiring
    • Figure 27 General arrangement air cooled Liebert XDC Lee-Temp Control
    • Table 12 Recommended refrigerant line sizes, DX R-407c, OD copper
    • Figure 28 DCSL616 piping connections—two refrigerant circuits connected for parallel flow
    • Table 13 Recommended refrigerant line sizes for DCSL616
    • Figure 29 CSL616 piping connections—two refrigerant circuits connected for parallel refrigerant flow
    • 2.6.1 Air Cooled Condenser with Lee-Temp “Flooded Condenser” Head Pressure Control System—R-407c (DX) Circuit
      • Lee-Temp Piping
      • Lee-Temp Control Materials Supplied
      • Evacuation and Leak Check—R-407c (DX) Circuit (Air and Water/Glycol Systems)
  • 2.7 Filling the Direct Expansion (DX) Circuit—R-407c
    • Table 14 Indoor unit refrigerant charge—R-407c
    • Table 15 Outdoor air condenser charge—R-407c
    • Table 16 Air cooled systems - liquid line charge - R-407c refrigerant per 100 ft (30 m) of Type "L" copper tube
    • Table 17 Indoor water/glycol cooled module – R-407C refrigerant charge
• 3.0 Installation Checklist
• 4.0 Checklist for Liebert XDC Startup
  • Table 18 Liebert XDC pump light indicator *
  • 4.1 System Refrigerant Charges Over 35 lb. (15.9kg) Require Additional Oil
    • Figure 30 Additional oil requirements for refrigerant charge
    • Table 19 Compressor oil types
    • Figure 31 System R-134a liquid level
• 5.0 Microprocessor Control
  • 5.1 Feature Overview
    • Figure 32 User interface
    • 5.1.1 Display
      • Table 20 User interface keypad functions
  • 5.2 Controls
    • 5.2.1 Feature Overview
    • 5.2.2 Status Display
  • 5.3 Main Menu
    • 5.3.1 Viewing or Changing Settings
    • 5.3.2 SETPOINTS
      • Table 21 Setpoint functions, default values and allowable ranges
      • MIN TEMP SP
      • HI AIR TEMP
      • LO AIR TEMP
    • 5.3.3 STATUS
    • 5.3.4 ACTIVE ALARMS
    • 5.3.5 ALARM HISTORY
    • 5.3.6 TIME
    • 5.3.7 DATE
    • 5.3.8 SETUP OPERATION
      • Table 22 Setup operation functions default values and allowable ranges.
      • RESTART
      • C/F DEGREES
      • PUMP START TD
      • PUMP WAIT TD
      • PUMP OFF TD
      • LEAD PUMP
      • LEAD TANDEM
      • DIPSWCH
        • Table 23 Liebert XDC DIP switches and factory settings
      • VALVE TIME
      • VLV ST OPEN
      • VLV START TD
      • MIN VLV SET
      • COMP SEQ ON
      • COMP OFF TD
      • INNERSTAGE TD
      • WSK1 TD
      • WSK2 TD
      • 100% START TD
    • 5.3.9 SETPT PASSWORD
    • 5.3.10 SETUP PASSWORD
    • 5.3.11 CALIBRATE SENSORS
    • 5.3.12 ALARM ENABLE
    • 5.3.13 ALARM TIME DELAY
    • 5.3.14 COM ALARM ENABLE
    • 5.3.15 CUSTOM ALARMS
    • 5.3.16 CUSTOM TEXT
    • 5.3.17 DIAGNOSTICS
• 6.0 Alarm Descriptions and Solutions
  • 6.1 Alarm Descriptions
  • 6.2 Red and Green Lamp Indicators
  • 6.3 Enable / Disable Alarms
  • 6.4 Alarm Time Delays
  • 6.5 View Active Alarms
  • 6.6 View Alarm History
  • 6.7 System Shutdown Causes
• 7.0 Troubleshooting
  • Table 24 Liebert XDC troubleshooting
• 8.0 Maintenance
  • 8.1 Fluorinated Greenhouse Gas Requirements
  • 8.2 Air Cooled Condenser
    • Figure 33 Outdoor fan/condenser configuration
  • 8.3 Water/Glycol Floor Stand Condenser
    • 8.3.1 Shell and Tube Condensers
    • 8.3.2 Regulating Valves
      • Testing the Water Regulating Valve Function
    • 8.3.3 Glycol Solution Maintenance
• 9.0 Specifications
  • Table 25 Liebert XDC specifications
  • Table 26 Floor stand specifications—water-cooled Liebert XDC
  • Table 27 Floor stand specifications—Liebert XDC with 40% propylene glycol
  • Table 28 Floor stand specifications—Liebert XDC with 40% ethylene glycol