Liebert® DSE™ Thermal Management System With Liebert
EconoPhaseTM Pumped Refrigerant Economizer
Saves 4.3 Million Gallons of Water Annually per MW; 8% - 10% More Efficient
Reliable, Low-Maintenance Pumped Refrigerant
Economization Operation
No water usage
No water treatment
No outside air contamination
No dampers and louvers to maintain
Automatic switchover to maximize economizer usage
The Ideal Solution for
California Data Centers
Lower refrigerant charge than traditional DX systems
A Highly Efficient, Self-Optimizing Solution for Thermal Management
The Liebert® DSE TM provides industry-leading thermal management efficiency, protection and insight. It uses no water
for economization and its innovative design makes it up to 50% more efficient than legacy solutions. Designed with
unparalleled expertise, it is part of Emerson's Thermal Management solutions that make your data center as dynamic
as your business.
The Liebert® DSETM solution lets you simplify every aspect of thermal management.
1
No water usage and up to 50% thermal energy savings
2
Auto-economizer control for maximum energy savings
3
Optimize intelligently with Liebert iCOMTM thermal controls
4
Easily scalable capacity with modular design and no need for additional chillers,
cooling towers or ductwork
5
Streamline Maintenance with no use of water, outside air, or manual adjustments
Calculated Savings for California Data Centers by the Liebert DSE System, Compared to
Water Economizers
The Liebert EconoPhase Pumped Refrigerant Economizer can save an average of 4.3 million gallons of water annually
for California data centers and reduce Time Dependent Value (TDV) of energy by 8% - 10%.
Average Annual Energy Usage Across
California's 16 Climate Zones
46,859
4.50
46,000
4.00
45,000
3.50
44,000
3.00
43,000
42,883
42,000
8% - 10%
41,000
More Efficient
40,000
Water Economizer Liebert DSE System
*Time Dependent Valuation (TDV) of energy is a measure used by the California
Energy Commission that values energy savings according to which hours of the
year the savings occur, to better reflect the actual costs of energy.
2
Millions of Gallons
*TDV kBtuh/ft^2
47,000
Average Annual Water Usage Across
California's 16 Climate Zones
4.30
2.50
2.00
1.50
1.00
0.50
0.00
0.0
Water Economizer Liebert DSE System
Quick Specs
MECHANICAL PUE: 1.3 - 1.05
CAPACITY: 80kW, 85kW, 125kW, 150kW, 165kW
FOOTPRINT: 80-85kW: 24 ft2; 125-165kW: 47 ft2
The World's Most Efficient DX System and No Water Usage
The air-cooled Liebert® DSETM offers water-free economization, a rapidly deployable configuration and advanced Liebert
iCOMTM thermal controls that let you optimize each unit and harmonize the operation of multiple units for temperature
and airflow. A highly scalable and modular solution, it easily accommodates changing IT loads and is ideal for upgrading
outdated or inefficient cooling systems.
Optimization Through Intelligent Controls
The Liebert DSE system has four components that work
together to optimize the use of ambient temperatures for
higher efficiency and to ensure higher protection of the
thermal system. It provides fail-safe economization with full
DX backup.
An optional capacitive buffer provides continuous control
operation during power outages of up to 3 minutes.
Continuous operation of controls allows for monitoring
systems to remain active, and allows for faster restart times
after power is restored.
The hardware components are managed by the Liebert iCOM
unit control which is integrated into the CRAC unit.
The Liebert DSE
indoor computer room air
conditioning (CRAC) unit
World's most efficient DX
cooling system
Liebert iCOM Thermal
System Controls
Intelligence for optimized operation
The Liebert EconoPhase™
pumped refrigerant economizer
Economization without hassles
The Liebert MC™
micro-channel condenser
Intelligent, high efficiency condensers
Liebert Indoor Unit
Liebert MC Condenser
Liebert iCOM Controls
Liebert EconoPhase
• Industry-best efficiency
• Digital scroll compressors
match cooling to IT load
• EC plugs fans match
airflow to IT server needs
• Electronic expansion
valves
• Most efficient air-cooled
condenser for data
centers
• Fan/Coil operating
strategy increases part
load efficiency
• Each fan is variable speed
• Protection from adverse
events and system wear
and tear
• Higher efficiency across
the thermal system – up
to 50% energy savings
• Insight for action into realtime data and trends for
performance optimization
• Integrated economizer
control with automatic
diagnostics
• Liebert iCOM monitoring
of pump operation
• Automatic changeover on
loss of free cooling
• Pump serviceable without
loss of cooling
3
About Emerson Network Power
Emerson Network Power, a business of Emerson (NYSE:EMR),
protects and optimizes critical infrastructure for data centers,
communications networks, healthcare, and industrial facilities.
The company delivers software, hardware, and services that
maximize availability, capacity, and efficiency for your business.
Emerson Network Power
Global Headquarters
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.)
Contact@EmersonNetworkPower.com
Emerson Network Power
Caribbean and Latin America
Office – United States of America
+1-954-984-3452 Phone
Ask.Cala@Emerson.com
Emerson Network Power
Canada
3580 Laird Rd Unit 1
Mississauga
Ontario L5L 5Z7
+1 905 569 8282
Ask@EmersonNetworkPower.com
EmersonNetworkPower.com
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. © 2015 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 is a registered trademark of the Liebert Corporation. Avocent is a trademark of Avocent Corporation.
Emerson, Consider it Solved, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2015 Emerson Electric Co.
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