Liebert XDH manual Liebert XD prefabricated piping assembly

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Piping

Figure 19 Liebert XD prefabricated piping assembly

	Return Main
Supply Main	Service Valve, typical
	(all ports)

Threaded Cap (Typical)

6.Thread the return couplers together. The return couplers are the larger of the couplers.

7.Use one of the adjustable wrenches to hold the fixed side of the female coupler on the Liebert XDH stationary. With the other adjustable wrench, tighten the collar onto the coupler.

Tighten these only until the force required to tighten abruptly increases. See Figure 20.

NOTICE

Do not overtighten the couplers. Overtightening of couplers will damage the couplers.

Figure 20 Detail view of Liebert XD Flex Pipe and prefabricated piping port

Supply Side Torque Range for

1/2" coupler is 22.1 to 25.8 lb/ft (30-35Nm)

Return Side Torque Range for

1" coupler is 59 to 62.7 lb/ft (80-85Nm)

Tighten collar with wrench.

DO NOT OVERTIGHTEN!

Service Valve Note:

Make sure the valve

is closed before attaching Liebert Flex Pipe to the system.

Hold threaded coupler here with a wrench to keep the pipe stationary while tightening collar with another wrench.

Liebert Flex Pipe

8.Repeat Steps 6 and 7 for the smaller couplers (supply line).

9.Once the supply and return connections are completed, open the return service valves, then open the supply service valves.

20

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Contents Liebert XDH General Safety Guidelines Fluorinated Greenhouse Gas Requirements-European UnionTable of Contents Maintenance SpecificationsOperation Example XDH32BK Liebert XDH component locationsPre-Installation Checks Product DescriptionReferences Parts Included With the Liebert XDHInstallation Considerations Room PreparationProduct/System Description Checking and UnpackingEquipment Inspection Recyclable PackagingUnit Handling Unpacking the UnitTaking the Unit off the Pallet Prepare ramp to remove the Liebert XDH from shipping palletAttaching ramp, removing the Liebert XDH from pallet Determining Placement in the Conditioned Space Installing the Liebert XDH Within the Enclosure RowAirflow Direction XDHInstall Air Diffusers for Best Airflow Direction Change airflow directionSystem Connection Configuration European Union Fluorinated Greenhouse Gas RequirementsTypical Liebert XDH piping-non-interlaced connection Indirect system configuration-hydraulic system schematic Hard pipe connection diagram Connection Methods and PointsVenting the Holding Charge and Connecting to Mains Piping Considerations-Hard-Piped ConnectionsRear of Liebert XDH Connecting Methods-One-Shot Connections Connection Methods for Hard PipeRecommended Piping Size Brazing PreparationsDegree Connection Connecting Liebert XD Flex Pipes to Liebert XDH Modules Header SystemTools Required Liebert XD prefabricated piping assembly Tools Required Return Line Service Valve Supply InsulationConnecting High Voltage Wiring ElectricalConnecting Low Voltage Wiring-Optional Condensate wiring entry pointsChecklist for Proper Installation Charging with Refrigerant and Starting the Liebert XD SystemStart the Liebert XDH OperationInternal Access Fluorinated Greenhouse Gas RequirementsRemove Fan Tray Remove fan traySpecifications Liebert XD Flex Pipe assemblies, supply and return Page Ne t