Emerson XDR user manual Tools Required, Male coupling on Liebert XD cooling module

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Piping

6.7.2Connect a Liebert XDR with One-Shot Couplings to Liebert XD Flex Pipe

NOTICE

Risk of improper reuse of Liebert XD Flex Pipes with one-shot couplings. Can cause refrigerant leaks.

Liebert XD Flex Pipes with one-shot couplings must not be removed from the Liebert XDR unless they are being replaced with Liebert XD Flex Pipes with one-shot couplings. Do not reuse Liebert XD Flex Pipes with one-shot couplings. Reuse may result in refrigerant leaks.

Tools Required

•Two adjustable wrenches with a maximum adjustment size of 2 inches

•One torque wrench, half-inch drive (see Table 2 for sizes)

•Refrigerant oil

1.Check the Liebert XD Flex Pipe for proper length.

2.Remove the protector cap and plug from the connections and carefully wipe the couplings and threaded surfaces clean.

3.Use a small applicator brush saturated with refrigerant oil to lubricate the entire surface of the diaphragm and the O-ring. Refer to Figure 18.

Figure 18 Male coupling on Liebert XD cooling module

Oil Rubber Seal

and Face of Diaphragm

If refrigerant oil is not used, an alternate lubricant for this application is a refrigerant-compatible silicone grease product, such as Dow Corning DC200/60,000 cst.

4.Thread the coupling halves together by hand to ensure that the threads mate properly. Ensure that the Schrader valve is oriented so that it is accessible for service.

Figure 19 Female one-shot coupling Liebert Flex Pipe: Schrader valve location

Schrader Valve

Coupling Size Marking on Lip of Coupling

20

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Contents Liebert XDR Important Safety Guidelines Fluorinated Greenhouse Gas Requirements-European UnionTable of Contents Installation Checklist and System Fill for Startup SpecificationsFigures Page Example XDR20B1R Component Locations and Model Number NomenclatureReferences Pre-Installation ChecksInstallation Considerations Packing ListProduct/System Description Checking and UnpackingRecyclable Packaging Module HandlingUnpacking the Module Removing packaging Removing the Liebert XDR from the Pallet Remove Liebert XDR from palletLiebert XDR Dimensions Move the Liebert XDROverall dimensions with one-shot coupling pre-charged Determining Placement in the Conditioned Space Overall dimensions with removable couplingGeneric airflow diagram AirflowInstalling the Rack-Mounting Kit onto the Rack Mounting the Liebert XDR on the Rack-Mounting KitDoor Safety Catch System Connection Configuration European Union Fluorinated Greenhouse Gas RequirementsConnection Methods and Points InsulationRecommended Piping Size Hard-Piped Connection SizesBrazing Preparations Leak-Checking and Evacuation Header System Refer to for detailsDegree Connection TOP View Tools Required Male coupling on Liebert XD cooling moduleHex 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 Disconnect a Liebert XD Flex Pipe from a Liebert XD System Piping mains without Liebert XD Flex PipeDisconnecting the Liebert XD Flex Pipe from the Liebert XDR Removing the Liebert XDR from a CabinetChecklist for Proper Installation Charging with RefrigerantStarting the Liebert XD System Maintenance Fluorinated Greenhouse Gas RequirementsSpecifications Page Ne t