Brochures and Data Sheets

Liebert MCR, Liebert XDF, Liebert XDK Cool Solutions For Today’s Computer And Communications Facilities
Channeled airflow
Liebert XDK
Fans with temperature-
dependent speed control
High performance air-to-
water heat exchanger
Automatic Door Openers
Condenser Fan
Power Cord
Connections
Evaporator
Coil
Graphic
Control
Display
Standard Mode
(Self Contained Unit Shown)
Back-Up Ventilation Mode
(Self Contained Unit Shown)
Liebert XDF
Liebert XDF
The air-cooled Liebert XDF extreme density
enclosure is a fully self-contained plug-and-
play rack-enclosure system that requires only
AC power connection to create an integrated,
mission-critical protection system for up to
36U and 14kW of sensitive electronics.
42U water-cooled unit exhausts the heat from
the electronic equipment through the water
piping circuit that is connected to an external
dry cooler.
Features and Benefits
The Liebert XDF includes integrated high capacity cooling that
provides the benefits of big room support in a cost-effective
package. Advantages include:
Lower cost cooling — the Liebert XDF uses a digital scroll
compressor which is unique to Liebert and allows for continual
and precise adjustments in cooling, resulting in lower
energy costs.
Effective cooling — optimized horizontal air circulation cools the
protected equipment, both in standard mode and in the unique
backup ventilation mode.
High level control — control and monitoring are provided
through a cabinet-mounted Liebert iCOM control system,
providing local and remote access to monitoring of conditions
within the Liebert XDF.
Quick deployment — easily adaptable, plug-and-play installation.
Self-contained air-cooled model requires only AC
power connection.
Back-up ventilation— Integrated automatic back-up ventilation.
Business-critical power protection — provided through an
optional Liebert GXT, a rack-mounted UPS that features on-line
power protection, remote monitoring, an external maintenance
bypass and extended battery runtimes.
Advanced power management — Liebert Managed Power
Advanced Power Strips are also available as an option to provide
power control at the receptacle level.
Liebert XDK-W
Another innovative solution for protecting
high density applications is the Liebert XDK-W
rack enclosure with integrated cooling.
This proven enclosure solution creates a
protective, space-saving environment for
blade servers and other rack-based, extreme
density IT equipment.
Features and Benefits
The Liebert XDK offers a number of unique
features designed to provide high-level cooling
protection of rack-mounted components:
Completely sealed from room air — high
density server racks inside the unit utilize
closed air circulation for cooling.
Effective heat removal — server heat load is dissipated into
the cold water system through an air-to-water heat
exchanger in the bottom of the rack.
Automatic front and rear door opener — operates in case
of overheating in the rack.
Redundant high-performance variable speed fans — drive
closed loop air circulation in the rack’s interior, while
servers are supplied with cold air at the front of the rack.
Can cool more than 25 kW of heat load in the rack
— reduces the risks of downtime in extreme
density environments.
Highest packing density for high-performance servers.
Consequently, up to 80% floor space saving in the
data center.
Highest possible leakage safety — with strict separation of
heat exchangers and electronic equipment.
Utilizes Liebert XDP-W Coolant Pumping Unit —
which houses the isolating heat exchanger between the
Liebert XDK-W water circuit and the building chilled water,
as well as the control valve, pumps and system controls. It
controls the fluid temperature to always be above the
actual room dewpoint to prevent condensation on the
piping and the coils.
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