Emerson Xtreme Density Manuel D’Utilisation

• Micro Channel Heat Exchanger—The Liebert XDO unit includes two all-aluminum micro channel 

heat exchangers.

• Fan—Air is drawn in the sides of the unit through the heat exchangers and is discharged by the 

fan to the area below—Liebert XDO fan tray hinges down to allow access to replace or service all 

electrical components.

• Internal Mounting—The Liebert XDO unit is typically suspended from the overhead building 

structure by inserting field-supplied threaded rods into the internal mounting brackets.

• Refrigerant Pre-Charge—Liebert XDO units with the pre-charged refrigerant option will have 

one-shot style fittings or removable couplings that contain pressurized refrigerant inside the Lie-

bert XDO. The fittings ease connection to Liebert XD Piping and filling with refrigerant.

• Field-Installed Flexible Piping (for use with prefabricated piping assemblies)—Field-installed 

flexible piping kits 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. Connection to the prefabricated piping 

assembly is with a threaded coupler. For information on acquiring the correct kit for your instal-

lation, refer to DPN000780, available by calling 1-800-LIEBERT and from your local Emerson 

Network Power representative.

• External Mounting Brackets—The Liebert XDO unit can be suspended by external mounting 

brackets that are attached to the front and rear panels of the unit. The external mounting brack-

ets are optional ship-loose items.

• Condensate Detection—The Liebert XDO unit is available with optional factory-installed con-

densate detection. The condensate detection has connection points (dry contacts) inside the unit.

• Lighting Fixture—Field-installable lighting fixtures are available in two voltages, 120V and 

277V. Light Fixture maybe attached to the bottom of the light panel to the left and right of the 

fan. Each fixture consists of housing, reflector, ballast and diffuser. Fixtures are compatible with 

standard 48" fluorescent tubes. Lamps are not included.