Specifications

Liebert XD Cooling Modules—Liebert XDCF, Liebert XDH, Liebert XDO, Liebert XDR and Liebert XDV
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4.9 Liebert XDR Standard Features
Micro-channel Heat Exchanger—The Liebert XDR unit includes two all-aluminum micro-
channel heat exchanger
Door Safety Catch—Liebert XDR modules have a door safety catch to prevent the door from
opening beyond 110°. When the door is fully open, the safety catch will hold the door in place. To
release the door, push up on the door catch and close the door.
Removable Installation Handles—The Liebert XDR will have four installation handles fac-
tory-installed to ease with installation and to be removed in the field after installation onto the
rack to allow side-by-side placement of the racks.
Rack-Mount Kit—The rack mount kits are constructed of 14-gauge steel to support the
Liebert XDR on the rear of the equipment cabinet and painted black to match the module. The
rack mount kit must be field-installed. Rack-mount kits are available for Knurr Miracel, APC
AR3100, Dell PowerEdge 4210 and HP 10642. Contact the factory by calling 1-800-LIEBERT for
kits to permit mounting on other rack types.
4.10 Optional Features—Liebert XDR
Refrigerant Pre-Charge—The Liebert XDR can be precharged with refrigerant. The unit will
have the one-shot fittings and will be pressurized. The one-shot Liebert XD Flex Piping will also
be pre-charged with refrigerant.
Field-Installed Flexible Piping—Field-installed flexible piping kits for use with prefabricated
piping assemblies are available in lengths of 4, 6, 8 and 10 feet (1.2, 1.8, 2.4 and 3 meters). Con-
nection style to the unit end may be straight or 90 degrees with one-shot or removable connec-
tions.
Flex pipes with one-shot connections will have pressurized R134a. Flex pipes with removable con-
nections will have a low-pressure nitrogen charge. Connection to the prefabricated piping assem-
bly is with a threaded coupler. For information on acquiring the correct kit for your installation,
refer to DPN000781, available from Liebert by calling 1-800-LIEBERT and from your local Emer-
son representative.
4.11 Liebert XDR Installation Considerations
Panels must be installed on the top and bottom of the rack to ensure that the air flows across the
Liebert XDR’s coils. If the panels are not installed, heated air will bypass the coils, drastically
reducing the performance of the Liebert XDR.