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Piping

6.10Disconnecting a Liebert XDV With Liebert 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 XDV with Liebert Flex Pipe from the prefabricated piping mains: With the fans running, close the supply service valve, wait approximately

two minutes, then close the return service valve.

Removing a Liebert XDV from above a cabinet will require two people. Read all instructions before beginning.

Tools Required

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

•Two ladders

•Phillips head #2 screwdriver

•Lift mechanism, if the Liebert XDV is suspended above cabinet

1.Ensure the Liebert XDV fan switches are both On and the fans are operational.

2.Close the service valve in the supply line to the Liebert XDV (smaller coupler).

3.With the Liebert XDV fans running, wait two minutes.

4.Close the service valve in the return line to the Liebert XDV (larger coupler).

5.Turn the fan power switches to the Off position. Once the fan switches are turned Off, unplug the power cords from their power source.

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

7.Loosen the female supply coupler from the male supply coupler (smaller coupler). This requires two adjustable wrenches. Refer to Figure 29.

8.The Liebert XDV side of the female coupler must be held stationary while the collar on the coupler is being loosened. Refer to Figure 29.

9.Disconnect the coupler.

Figure 31 Profile view of the Liebert XD system with one-shot connections

One-Shot Connections

One-Shot Support Bracket

Serial Tag

Liquid Sensing (optional) Disconnect wiring prior to moving XDV

Primary and	Return
Secondary	Line
IEC Power
Cord

Fan Power

Switches

Rear of the XDV

Service

Valve

Supply

Line

10.Place the protective dust cap and plug back onto both ends of the coupler on the Liebert XDV and the port pipe.

28

Image 34

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Contents

Liebert XDV General Safety Guidelines Fluorinated Greenhouse Gas Requirements-European Union Table of Contents Specifications Installation Checklist and System Fill for StartupMaintenance Electrical Figures Page Example XDV10BK Liebert XDV component locations Installation Pre-Installation ChecksInstallation Considerations References Checking and Unpacking Product/System DescriptionGeneral Product Information Equipment Inspection Recyclable Packaging Unit Handling Unpacking the Unit Domestic Packaging Export Packaging Removing export shipping package Removing the Liebert XDV from the Pallet Removing Liebert XDV from shipping pallet Dimensional data Determining Placement in the Conditioned SpaceMechanical Considerations Changing the Air Intake Location Changing the Liebert XDV’s air intake location Mounting the Liebert XDV Mounting the Liebert XDV on Top of the CabinetBolting Liebert XDV to Top of Cabinet Bottom View Using Supplied Clips for Mounting Mounting clip placement 11mm 22mm Top View 2 64mm 76mm 102mm DPN000770 Suspension hardware and bracket dimensional dataSuspended Mounting Method Pg , Rev Suspending the Liebert XDV from Unistruts Suspending the Liebert XDV from Overhead Structures Suspending Liebert XDV from the overhead structure Mounting Liebert XDVs in Stacked Setup Stacking configuration offset Hanging Stacked Liebert XDVs from Unistruts Stacked Liebert XDVs suspended from Unistruts Hanging Stacked Liebert XDVs from the Overhead Structure European Union Fluorinated Greenhouse Gas Requirements System Connection ConfigurationPiping Connection Methods and Points Piping Connections to Liebert XDP or Liebert XDC Right Side Liebert XDV Hard Piped Connection Sizes Holding Charge-Hard-Piped Units Recommended Piping Size Brazing Preparations-Hard-Piped Units Connection Methods-One-Shot Connections Branch piping sizes for refrigerant loop Connecting Liebert XD Flex Pipe to Liebert XDV Modules Field Installation of Liebert Flex Pipe Kit on Liebert XDVRefrigerant Charge-Pre-Charged Option Liebert XD prefabricated piping assembly Tools Required With wrench Overtighten Return Insulation Piping mains without Liebert XDV and Liebert Flex Pipe Rear Liebert XDV Connecting High Voltage Cables for CSA/C-US Certified UnitsElectrical Rear of Liebert XDV Liebert XDV electrical connections for CE-approved units Condensate Detection Connections Connecting Low Voltage Wiring-OptionalRear View of Liebert Xdvto be N.E.C. Class Checklist for Proper Installation Installation Checklist and System Fill for Startup Start the Liebert XDV Operation Maintenance Internal AccessFluorinated Greenhouse Gas Requirements Accessing Internal Electrical Components Accessing internal electrical components To remove the fan tray Specifications Liebert XDV10 specifications Liebert XDV8 specifications Liebert XD Liebert Flex Pipe assemblies, supply and return Page Ti n Ne tIti That