Document Outline

• General Safety Guidelines
  • Fluorinated Greenhouse Gas Requirements—European Union
• 1.0 Liebert XDH Component Locations and Model Number Nomenclature
  • Figure 1 Liebert XDH component locations
  • Figure 2 Liebert XDH model number nomenclature
• 2.0 Introduction
  • 2.1 Product Description
  • 2.2 References
  • 2.3 Pre-Installation Checks
  • 2.4 Parts Included With the Liebert XDH
  • 2.5 Installation Considerations
    • Table 1 Application limits
    • 2.5.1 Room Preparation
• 3.0 General product information
  • 3.1 Product / System Description
    • Figure 3 Liebert XDH hydraulic schematic
  • 3.2 Checking and Unpacking
  • 3.3 Equipment Inspection
    • 3.3.1 Recyclable Packaging
      • Figure 4 Recommended unit handling equipment
    • 3.3.2 Unit Handling
    • 3.3.3 Unpacking the Unit
      • Figure 5 Removing shipping package
    • 3.3.4 Taking the Unit off the Pallet
      • Figure 6 Prepare ramp to remove the Liebert XDH from shipping pallet
      • Figure 7 Attaching ramp, removing the Liebert XDH from pallet
• 4.0 Mechanical Considerations
  • 4.1 Determining Placement in the Conditioned Space
    • Figure 8 Liebert XDH dimensions
  • 4.2 Installing the Liebert XDH Within the Enclosure Row
    • 4.2.1 Airflow Direction
      • Figure 9 Liebert XDH placement in enclosure row
      • Install Air Diffusers for Best Airflow Direction
        • Figure 10 Change airflow direction
• 5.0 Piping
  • 5.1 European Union Fluorinated Greenhouse Gas Requirements
  • 5.2 System Connection Configuration
    • Figure 11 Typical Liebert XDH piping—interlaced connections
    • Figure 12 Typical Liebert XDH piping—non-interlaced connection
    • Figure 13 Direct system configuration—hydraulic system schematic
    • Figure 14 Indirect system configuration—hydraulic system schematic
  • 5.3 Connection Methods and Points
    • Figure 15 Hard pipe connection diagram
  • 5.4 Piping Considerations—Hard-Piped Connections
    • Figure 16 Supply and return—hard-piping connections
    • 5.4.1 Venting the Holding Charge and Connecting to Mains
    • 5.4.2 Brazing Preparations
  • 5.5 Connection Methods for Hard Pipe
  • 5.6 Recommended Piping Size
    • Table 2 Branch piping sizes for pumped refrigerant loop
    • 5.6.1 Connecting Methods—One-Shot Connections
      • Figure 17 Piping location and connecting sizes for pre-charged units
  • 5.7 Field Installation of Liebert XD Flex Pipe Kit on the Liebert XDH
    • Figure 18 Liebert XD Flex Pipe dimensions—straight and 90-degree connections
  • 5.8 Connecting Liebert XD Flex Pipes to Liebert XDH Modules
    • 5.8.1 Header System
  • 5.9 Connecting a Liebert XDH with Liebert XD Flex Pipe to an Operational Liebert XD System
    • Tools Required
      • Figure 19 Liebert XD prefabricated piping assembly
      • Figure 20 Detail view of Liebert XD Flex Pipe and prefabricated piping port
      • Figure 21 Liebert XD system with prefabricated piping assembly and Liebert XD Flex Pipe
  • 5.10 Disconnecting a Liebert XDH With Liebert XD Flex Pipe From a Liebert XD System
    • Tools Required
      • Figure 22 Profile view of the Liebert XD system
      • Figure 23 Piping mains without Liebert XDH and Liebert XD Flex Pipe
  • 5.11 Insulation
• 6.0 Electrical
  • 6.1 Connecting High Voltage Wiring
    • Figure 24 Liebert XDH electrical connections
  • 6.2 Connecting Low Voltage Wiring—Optional
    • Figure 25 Condensate wiring entry points
• 7.0 Installation Checklist and System Fill for Startup
  • 7.1 Checklist for Proper Installation
  • 7.2 Charging with Refrigerant and Starting the Liebert XD System
• 8.0 Operation
  • Figure 26 Fan switches
  • 8.1 Start the Liebert XDH
• 9.0 Maintenance
  • 9.1 Internal Access
  • 9.2 Fluorinated Greenhouse Gas Requirements
  • 9.3 Remove Fan Tray
    • Figure 27 Remove fan tray
• 10.0 Specifications
  • Table 3 Liebert XDH specifications
  • Table 4 Liebert XD Flex Pipe assemblies, supply and return