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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Image 25
Liebert XDH manual Tools Required