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A Cooling Solution For Your Egenera BladeFrame EX
System From The Leader In High Density Heat Removal
Tighter spacing of racks and higher
component density within each rack
can require a level of cooling that is
much greater than traditional
computer room air conditioning
systems can effectively handle. The
number of cooling units needed and
the energy required to operate them
make this arrangement extremely
inefficient. The Liebert XD CoolFrame
allows a higher density of BladeFrame
EX systems within the data center
than is possible with standard
computer room cooling solutions.
Adding targeted supplemental
cooling is much more cost-
efficient than trying to lower the
temperature of localized hot spots
by increasing the overall room air
conditioning capacity. Liebert
X-treme Density mission-critical
cooling systems are specifically
designed to address the higher
heat loads generated by tightly
packed electronic rack enclosures.
Individual systems can cool hot air
ejected from the enclosure or cool
hot spots or zones near the racks.
The Liebert XD Solution
Liebert XD Cooling Solutions: An Adaptive
Mission-Critical Cooling Architecture That
Accommodates Changes
Liebert XDP— Pumping Unit
Designed For Indirect System
Configurations
When a building chilled water
system is available, the Liebert XDP
Pumping Unit serves as an
intermediary to isolate the building
chilled water circuit from the XD
Coolant circuit. It circulates coolant
to the Liebert XD CoolFrame at a
temperature always above the dew
point to prevent condensation.
Liebert XDC—A Coolant Chiller
Designed For Direct System
Configurations
The Liebert XDC Coolant Chiller is a
specially designed indoor unit that
connects directly to the Liebert XD
CoolFrame modules and provides
XD Coolant circulation and control.
It ensures that the coolant is
constantly above the dew point in
the room, eliminating concern for
condensation. Available with several
heat rejection options.
L
iebert XD Waterless Coolant
—
This unique application of an off-the-
shelf product makes the Liebert XD solution very energy efficient. The XD
Coolant operates at low pressure and becomes a gas at room
temperatures, making it ideal for use around electronic equipment.
There are two reasons the Liebert XD system uses a waterless refrigerant.
First, many data center managers are reluctant to re-introduce water into
their facilities because of the possibility of equipment damage from
leakage. Secondly, the refrigerant used in the Liebert XD system is more
efficient than water and has advantages in system design and reducing
energy costs associated with cooling.
Liebert XDC
Chiller
Liebert XDP
Pumping Unit
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