Liebert XDH manual Tools Required

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Piping

Figure 21 Liebert XD system with prefabricated piping assembly and Liebert XD Flex Pipe

Return Service Valve Make sure valve is open after system leak check

Supply Service Valve Make sure valve is open after system leak check

Return

Main

Supply Main

Return Liebert

Flex Pipe

Supply Liebert Flex Pipe

5.10Disconnecting a Liebert XDH With Liebert XD Flex Pipe From a Liebert XD System

CAUTION

! Risk of sudden discharge of pressurized refrigerant. Can cause equipment damage or injury. Do not disconnect threaded refrigerant couplers at the unit cabinet end without relieving system pressure. Reclaim any refrigerant during removal of unit from system.

NOTICE

Before uninstalling a Liebert XDH with Liebert Flex Pipe from the prefabricated piping mains: Close the supply service valve, wait approximately two minutes, then close the return service valve.

Read all instructions before beginning.

Tools Required

•Two adjustable wrenches, maximum adjustment size of 2-1/2 inches

•Phillips head #2 screwdriver

1.Close the service valves in the supply line to the Liebert XDH (smaller couplers).

2.Close the service valves in the return lines to the Liebert XDH (larger couplers).

3.Locate and have ready the caps and plugs for both ends of the supply and return couplers.

4.Loosen the female supply couplers from the male supply couplers (smaller couplers). This requires two adjustable wrenches. Refer to Figure 20.

5.The Liebert XDH side of the female couplers must be held stationary while the collars on the couplers are being loosened. Refer to Figure 20.

6.Disconnect the couplers.

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Contents Liebert XDH Fluorinated Greenhouse Gas Requirements-European Union General Safety GuidelinesTable of Contents Specifications MaintenanceOperation Liebert XDH component locations Example XDH32BKProduct Description Pre-Installation ChecksReferences Parts Included With the Liebert XDHRoom Preparation Installation ConsiderationsChecking and Unpacking Product/System DescriptionRecyclable Packaging Equipment InspectionUnpacking the Unit Unit HandlingPrepare ramp to remove the Liebert XDH from shipping pallet Taking the Unit off the PalletAttaching ramp, removing the Liebert XDH from pallet Installing the Liebert XDH Within the Enclosure Row Determining Placement in the Conditioned SpaceXDH Airflow DirectionChange airflow direction Install Air Diffusers for Best Airflow DirectionEuropean Union Fluorinated Greenhouse Gas Requirements System Connection ConfigurationTypical Liebert XDH piping-non-interlaced connection Indirect system configuration-hydraulic system schematic Connection Methods and Points Hard pipe connection diagramPiping Considerations-Hard-Piped Connections Venting the Holding Charge and Connecting to MainsRear of Liebert XDH Connection Methods for Hard Pipe Connecting Methods-One-Shot ConnectionsRecommended Piping Size Brazing PreparationsDegree Connection Header System Connecting Liebert XD Flex Pipes to Liebert XDH ModulesTools Required Liebert XD prefabricated piping assembly Tools Required Insulation Return Line Service Valve SupplyElectrical Connecting High Voltage WiringCondensate wiring entry points Connecting Low Voltage Wiring-OptionalCharging with Refrigerant and Starting the Liebert XD System Checklist for Proper InstallationOperation Start the Liebert XDHFluorinated Greenhouse Gas Requirements Internal AccessRemove fan tray Remove Fan TraySpecifications Liebert XD Flex Pipe assemblies, supply and return Page Ne t