Emerson XDR user manual Oil rings on header and Liebert XD Flex Pipe connectors

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Piping

Figure 25 Oil rings on header and Liebert XD Flex Pipe connectors

Poppet Valve Face

Oil

Applicator

Spout

Rubber Ring

Around Poppet

Valve Face

Stainless Steel Delta Ring on Header Port Connector

9.Thread the union nut of the Liebert XD Flex Pipe coupling onto the port coupling to ensure the threads mate properly.

10.Using the wrench arrangement shown in Figure 26, torque the couplings to the values in Table 5.

NOTICE

Risk of twisted or kinked piping. Can cause flow restriction or leaks.

It is imperative that the brass body of the Liebert XD Flex Pipe coupling does not rotate while the couplings are being tightened. Failing to do so may damage the female coupling.

Table 5	Torque for connecting Liebert XD Flex Pipe to prefabricated piping
Coupling	Crowsfoot	Torque,
Size	Size, in (mm)	ft-lb (Nm)
RF08	1-3/16 (30)	25.8 (30-35)

RF12	1-5/8 (41)	48.0 (60-65)

RF16	1-31/32 (50)	62.7 (80-85)

Figure 26 Wrench arrangement for tightening couplings

Crowsfoot

Wrench holding brass body of female coupling stationary to prevent it from turning

Torque Wrench

25

Image 31

Contents Liebert XDR Fluorinated Greenhouse Gas Requirements-European Union Important Safety GuidelinesTable of Contents Specifications Installation Checklist and System Fill for StartupFigures Page Component Locations and Model Number Nomenclature Example XDR20B1RPacking List Pre-Installation ChecksInstallation Considerations ReferencesChecking and Unpacking Product/System DescriptionModule Handling Recyclable PackagingUnpacking the Module Removing packaging Remove Liebert XDR from pallet Removing the Liebert XDR from the PalletMove the Liebert XDR Liebert XDR DimensionsOverall dimensions with one-shot coupling pre-charged Overall dimensions with removable coupling Determining Placement in the Conditioned SpaceAirflow Generic airflow diagramMounting the Liebert XDR on the Rack-Mounting Kit Installing the Rack-Mounting Kit onto the RackDoor Safety Catch European Union Fluorinated Greenhouse Gas Requirements System Connection ConfigurationInsulation Connection Methods and PointsBrazing Preparations Hard-Piped Connection SizesRecommended Piping Size Refer to for details Leak-Checking and Evacuation Header SystemDegree Connection TOP View Male coupling on Liebert XD cooling module Tools RequiredHex body, union nut on one-shot coupling Connection Methods-Removable Couplings Removable couplings Return Main Supply Main Oil rings on header and Liebert XD Flex Pipe connectors Do not Overtighten Piping mains without Liebert XD Flex Pipe Disconnect a Liebert XD Flex Pipe from a Liebert XD SystemRemoving the Liebert XDR from a Cabinet Disconnecting the Liebert XD Flex Pipe from the Liebert XDRCharging with Refrigerant Checklist for Proper InstallationStarting the Liebert XD System Fluorinated Greenhouse Gas Requirements MaintenanceSpecifications Page Ne t