Precision Cooling
For Business-Critical Continuity™
Liebert XDF™ Mini Data Center (MDC)
Rack Enclosure With Integrated High Density Cooling
As a new generation of compact, heat producing IT switches and
servers are deployed outside the data center, IT managers are
faced with the challenge of keeping their equipment up and running
in these non-traditional spaces.
The Liebert XDF™ Mini Data Center (MDC) solves this challenge
by providing high heat density precision cooling with integrated
security, monitoring and control all in a single rack supporting from
3-9 kW of IT load.
Liebert MDC is high density cooling integrated into a secured
rack enclosure, providing the benefits of big room support in a
cost-effective package. Optimized horizontal air circulation cools
the protected equipment preventing hotspots and equipment
failures, both in standard mode and in backup ventilation mode.
Control and monitoring are accomplished with the cabinet-mounted
Liebert iCOM control system.
Optional Liebert UPS, advanced rack PDUs and remote monitoring
systems are available to customize the level of support to meet
your individual infrastructure needs.
Key Features
ƒ Integrated high density cooling
with horizontal air flow for even
cooling
ƒ Automatic back-up ventilation
ƒ 2 Configurations:
ƒ Air-cooled
ƒ Water-cooled
ƒ Digital scroll compressor
for precise and energy efficient
operation
ƒ Quickly deployable on casters
with leveling feet
ƒ Liebert iCOM™ intelligent
controls
ƒ Remote monitoring
ƒ Enhanced protection and
functionality with Liebert online
UPS and rack PDUs
Ideal Applications
ƒ IT equipment in non-traditional
spaces without the benefit of
precision cooling
ƒ Warehouses
ƒ Closets
ƒ Shelters
ƒ SMB Data Centers
ƒ High density equipment
requiring individualized cooling
and protection
ƒ Closets
ƒ Data centers
ƒ RFID applications
ƒ VolP applications
ƒ Disaster recovery operations
A Cool Solution to Rising Heat Densities in Small Spaces
The Air-cooled MDC is a self-contained unit with 9kW of cooling in
a 36U enclosure. XDF-S exhausts the heat from the electronic
equipment through the condenser fan at the top.
The Water-cooled MDC has 9kW of cooling in a 42U
enclosure. The unit exhausts the heat from the electronic
equipment through the water piping circuit that is connected to a
building water tower or Liebert drycooler.
All units have horizontal airflow, providing optimal cooling to your
equipment while reducing hot spots and increased failures at the
top of the cabinet. The two base MDC units provide the flexibility of
four different methods of heat rejection.
Airflow within the unit
Liebert MDC Model Comparison Chart
Model
Air-cooled
Air-cooled
Water-cooled
Water-cooled
Without ducting; hot
air is dissipated into
the room
With field installed
ducting; hot air is
ducted to ceiling
plenum or outdoors
for dissipation
Connected to a
building water tower
for hot water removal
Split unit connected to
a drycooler & pump
for hot water removal
Capacity
(Conditions)
9kW
(Air temp <92.5°;
Internal setpoint ≥77°)
9kW
(Air temp <92.5°;
Internal setpoint ≥
77°)
9kW
(Water temp <85°;
Internal setpoint ≥
77°)
9kW
(Water temp <85°;
Internal setpoint ≥
77°)
Rack Space
36U
36U
42U
42U
Sound Level
86dBA
<86dBA
79dBA
79dBA
1600 sq ft
60 sq ft
60 sq ft
60 sq ft
Heat Rejection
Minimum Room Size
Dell Model Number
(Liebert Model Number)
A1712604
A1712604
A1712601
A1714966
(XDFS091001S6291)
(XDFS091001S6291)
(XDFW091001S6291)
(XDFW091001S6409)
All Liebert MDC units have the following requirements:
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
Two power connections: 120/208V 3-phase (NEMA L21-30P; 4 wires + ground) & 120V single phase (NEMA 5-15P)
Separate source for power distribution within the rack (i.e. via a Liebert MP Rack PDU)
Condensate removal to a drain (condensate pump included)
Minimum 3kW of IT load (below 3kW, you may wish to consider a Liebert MCR)
Contractor installation of water-cooled MDCs (also recommended for ducting of the air-cooled MDC)
Liebert Online UPS recommended to support your critical IT load
Selecting the right heat rejection mechanism
The heat from the IT equipment will need to be removed by
one of four heat rejection methods.
Heat Rejection Method #1:
Air-cooled MDC without
ducting
The Air-cooled Liebert MDC
without ducting utilizes the
volume of air in a 1600
square foot or larger room
to adequately dissipate the
hot exhaust air.
Heat Rejection Method #2:
Air-cooled MDC with ducting
The Air-cooled Liebert MDC
with ducting utilizes a ceiling
plenum or the outdoors to
dissipate the hot exhaust air.
Appropriately sized ducting
will need to be field installed
to remove the hot air from the
unit (a booster fan may also
be required).
The integrated condenser
requires 2700 CFM of makeup
air to the unit.
Heat Rejection Method #3:
Water cooled MDC
The Water-cooled Liebert
MDC utilizes a building
water tower for removal of
the hot water.
Piping must be installed to
connect the Liebert MDC to
the water tower (typically a
closed-loop system with
water 50-85°).
Heat Rejection Method #4:
Water cooled MDC split unit
with Liebert drycooler
package
The Water-cooled Liebert
MDC split unit utilizes a
Liebert drycooler & pump for
removal of the hot water.
Piping must be installed to
connect the Liebert MDC to
the drycooler and pump.
The drycooler can be installed
up to approximately 150 feet
from the Liebert MDC and
should be installed on a hard
surface such as a roof or
concrete pad (refer to local
code).
For contractor recommendation or application questions, call 1-800-LIEBERT or contact your local Liebert sales office (rep lookup
available at www.liebert.com)
Liebert Corporation
Technical Data
Liebert MDC™
Air-cooled
Water-cooled
82.5" (2095mm)
81" (2057mm)
Overall Unit Width
35" (890mm)
35" (890mm)
Overall Unit Depth
48" (1219mm)
48" (1219mm)
19" (483mm) EIA
19" (483mm) EIA
Adjustable Rack Depth, Max
32.1" (815mm)
32.1" (815mm)
Adjustable Rack Depth, Min
24.4" (620mm)
24.4" (620mm)
Weight, Empty
710 lbs (322 kg)
668 lbs (338 kg)
Max Weight, Loaded
2000 lbs (907kg)
2000 lbs (907kg)
2100 CFM (3500 m3/h)
2100 CFM (3500 m3/h)
Overall Unit Height, With Casters
Rack Width
Nominal Air Flow, Internal
Input Voltage
Full Load Amps
120V, 1ph, 60Hz* and 120/208V, 3ph, 60Hz**
7.7A* and 15.7A**
respectively, 60Hz
5.0A* and 15.7A**
respectively, 60Hz
1050 Dearborn Drive
P.O. Box 29186
Columbus, Ohio 43229
800 877 9222 Phone (U.S. &
Canada Only)
614 888 0246 Phone (Outside U.S.)
614 841 6022 FAX
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD)
Italy
39 049 9719 111 Phone
39 049 5841 257 FAX
Emerson Network Power Asia Pacific
7/F., Dah Sing Financial Centre
108 Gloucester Rd, Wanchai
Hong Kong
852 25722201 Phone
852 28029250 FAX
liebert.com
24 x 7 Tech Support
* For controls and evaporator and condenser fans power supply.
** For compressor power supply
800 222 5877 Phone
+800 1155-4499 (outside U.S.)
While every precaution has been taken to ensure accuracy
and completeness in this literature, Liebert Corporation
assumes no responsibility, and disclaims all liability for
damages resulting from use of this information or for
any errors or omissions.
© 2007 Liebert Corporation. All rights reserved throughout
the world. Specifications subject to change without notice.
All names referred to are trademarks or registered
trademarks of their respective owners.
® Liebert and the Liebert logo are registered trademarks
of the Liebert Corporation.
SL-xxxxx (06/08)
Back-Up
Ventilation Mode
(Air-cooled Unit
Shown)
Standard Mode (Aircooled Unit Shown)
Local and Remote Monitoring Capabilities
Liebert iCOM allows for local or remote monitoring of
the conditions in the Liebert MDC to protect critical
rack components. Options are available for connecting
to Liebert remote monitoring devices or for BMS
(Building Management System) interface via MODbus
or SNMP.
iCOM™ Control
Display
The menu driven display is organized into three main
sections: User Menus, Service Menus and Advanced
Menus.
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business-critical continuity.
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