Liebert® DM™
High Performance, Sensible Cooling for Small Computer Rooms and Network Closets
Emerson Network Power, a business of Emerson (NYSE: EMR), is a worldwide leader in infrastructure
solutions across the globe.
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world’s standard for reliable operations in computer rooms and critical infrastructure applications.
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2
Why Thermal Management?
Start with the right kind of cooling
Some operations use standard comfort cooling systems to save money or to avoid using additional
floor space XitIin tIe facility #ut tIis approacI may proWide some Cene»ts in tIe sIort term ¯ tIey
must be balanced against the cost of downtime and equipment damage resulting from serious
overheating as well as the risk of financial loss.
Issues when using Comfort Cooling in Small Data Centre/Computer Room
(Datacom Rooms)
1. 6sing rigid oWer head ducts proWides insuf»cient air Wolume lsec per L8
which results in
hot spots and they are also dif»cult to relocate
2. Comfort cooling systems cannot control humidity levels and do not typically have integral humidity
control.
3. 6sing separate humidi»cation systems not controlled by the cooling system can waste energy and
reduce the stability of the environment.
5hese issues can have long and short term effects on your *5 operations. 5he business risLs range from
degraded IT services to system interruption and shutdown.
3
Thermal Management vs. Comfort Cooling
Computers Generate Heat, But Not Humidity.
100%
10%
90%
0f»ces /on IT
Rooms80%
generate
lots of moisture due
to human
70%activities
35%
60%
50%
90%
40%
30%
65%
IT equipment rooms
have high sensible
temperature
heat
loads
20%
10%
0%
Office & Non-IT Rooms
Datacom Rooms
Latent
Sensible
of a thermal management system´s energy and capacity are designed to remove the dry
heat that electronic eRuipment produces. Comfort cooling systems are designed to Leep people
comfortable and are only capable of using about of their cooling capacity to remove heat
generated by computers. The other 3 is used to remove moisture commonly found in of»ce
space but not server or networL rooms. This can lower humidity too much causing electricity
problems and even electronic failure.
Why run the risk of relying on building air?
RISK: These systems shut down overnight and weeLends
RISK: Systems designed to operate Y vs. Continuous 0peration
RISK: Insuf»cient »ltration for IT eRuipment and no humidity control
RISK: #uilding air removes too much moisture introducing the risL of static discharge
RISK: Insuf»cient air¼ow causes overheating in IT eRuipment
COST:
„ #uilding air is designed to cool people heat and perspiration
„ "s a conseRuence a lot of energy cost
goes into removing moisture
„ Energy is wasted where building air is used to cool IT equipment
Liebert DM
Temperature
Control
Humidity
Control
1C
R)
Domestic/Split
Systems
Benefits
3C
Stable temperatures ensure
operational integrity and
reliability of IT equipment
8ide temperature ¼uctuations
shorten operational life of IT
equipment and will increase the
risL of catastrophic failure
1 R)
0nly thermal management
units can control room
humidity
)igh humidity can lead to
condensation and corrosion, low
humidity increases the risL of
electrostatic discharge, both are
major threats to IT equipment
/o
Liebert DM is a networL
managed device. It will
notify you if there is a failure
or potential threat to your
equipment
Standard IP connectivity:
Email SMTP
SMS through email gateway
S/MP MI# and trap support
)TTP browser
0ptional temperature and
humidity sensors can be
placed directly into the racLs
/o
Liebert® DM™ thermal
management is designed to
run nonstop in demanding IT
environments
Domestic air conditioning
warranty only covers
applications for human comfort
and eYplicitly not for the climatic
control of electronic equipment.
/o
Domestic units require
Interconnected units provide
third party or customised
standby rotation and lead
management devices adding
lag operation through a single
compleYity, warranty and
cable
operational risL
®
Network
Managed
Reliability
and
Warranty
for 24x7
operation
Load sharing/
Duty Cycling
Operational
life
Operating
Range
Yes
I1 networL
managed
Yes
Yes
10 years+
Comment
13 years est.
/ot designed
for IT
operations
Most Domestic
units will
only provide
10C to C cooling when
the outside
temperature is
above 10C
™
Liebert® DM™ is designed to
run 2hrs Y3 with a mean
time to failure of years.
Domestic units typically
designed to run only 2000
000 hoursyear
If you run a Domestic unit
2hrsY3 the eYpected mean
time to failure is 1 year!!
Liebert® DM™ provides
continuous cooling operation
down to 10C outdoor
temperatures. 30C optional
.
Most comfort systems can
only cool if the outside
temperature its above 10C.
Domestic systems are designed
to cool in summer and heat
in winter, IT equipment
requires cooling all year round.
Misapplication may lead to loss
of cooling
Product Overview
Liebert® DM™ delivers enterprise level thermal management
to small computer rooms and networL closets. It is designed
for yearround temperature and humidity control for IT
applications across the critical infrastructure. Equipped with
an air»ltration feature, the Liebert® DM™ is ideal for areas
where people and IT equipment occupy the same space.
It provides enough ¼eYibility in the critical infrastructure
as it occupies minimum ¼oor space which suits small and
mediumsi[ed computer rooms.
The Liebert® DM™ offers a selection of variants to »t your
infrastructure's requirements and conditions. It also features
communication capabilities to the critical infrastructure
manager for easy monitoring of the temperature across the
IT infrastructure.
Liebert® DM™ variants:
Air Cooled up to 16L8 capacity
„
Chilled 8ater up to 2L8 capacity
„
The Liebert® DM™ is ideally suited for:
Small and medium si[ed computer rooms
„
UPS and battery rooms
„
0utdoor electronic and communication equipment
„
rooms
Transformer stations, substations
„
Laboratories, test rooms and storage rooms
„
6
Features and Benefits
Energy saving
„)igh sensible heat ratio and high energy ef»ciency
„Equipped with Copeland Scroll Compressors
„Provides stable temperature and humidity condition
„Fans for outdoor units feature easy to access full range speed
regulation
„Manageable and uniqe EcoMode option
„Energy saving component options
Space Saving
„ Small footprint ¯ 100 front door access
User-Friendly and Maintenance-Free
„Large screen display with multilevel password protection and
eYpert faultdiagnosis functions
„Automatic startup on power and scheduled startup
also
available
„Standard RS Monitoring Interface
„Equipped with alarm for irregularities on blast reduction, fan
failure and »lter clogging
®
™
„Email and SMS noti»cation thru the Liebert RDU for
remote monitoring functions
Highly adaptive
„27 operation capable
„Ultra wide input voltage range; multiple power
protection
functions
„Environment adaptability: adoption to outdoor temperature
while meeting cooling requirements
„Adaptive to heat dissipation of the main equipment
7
Liebert® DM™ – Air Cooled
The Liebert® DM™ Air Cooled Thermal Management System is suitable
for precise air conditioning of small and medium si[ed computer
rooms and UPS #attery rooms. Designed with the latest thermal
management technology, the Liebert® DM™ Air Cooled and has
passed industry standards for thermal management systems and
features high energy ef»ciency, eYcellent reliability and long service
life. The Air Cooled series is con»gured with constant temperature
and humidity adjustment functionalities that can be easily managed
and monitored at the onscreen display.
Options & Accesories (Air-cooled)
„EYtended Piping ,it
„8ater LeaL Detection System
„RDUSIC Card
Power protection available, please contact Emerson /etworL Power sales for more details.
Liebert DM - Air cooled
Model
Capacities, L8
DME07
DME12
7.
12.
Available con»guration
Up¼ow Plenum 0nly
23073ph60)[+/
3073ph0)[ or 23073ph60)[+/
3073ph60)[+/
Indoor Unit Power Supply
Condenser Type
0utdoor Condenser
Refrigerant
R07C
)umidi»er1
Electrode
Electric )eater Power, L8
3.2
/o. of fans
1
Indoor Unit Dimension )Y8YD
, mm
170 Y 10 Y 3
10 Y 600 Y 00
0utdoor Unit Dimension )Y8YD
, mm
30 Y 70 Y 3
120 Y 70 Y 3
Indoor /et 8eight, Lg
1
0utdoor /et 8eight, Lg
0
60
Liquid line diameter, inch
12
Discharge line diameter, inch
3
20
11 22
2
FLA , A
Air breaLer
1
32
This is an optional feature.
FLA is Full Load Ampere; the maYimum full load current value of the air conditioner is not the sum of rated maYimum full load current of all
components. It is the sum of rated maYimum full load current value of the operating components, which may operate at the same time on the
maYimum worL load condition.
2
Air Cooled Indoor Dimension
DMH07,
Air Cooled Outdoor Dimension
9
Liebert® DM™ – Chilled Water Series
The Liebert® DM™ Chilled 8ater utili[es lowtemperature chilled water
available on site as the source for cold temperature and does not require
an outdoor unit. The Chilled water series best applies to computer rooms
located on commercial buildings with adequate chilled water source.
Options & Accesories Chilled Water System
„RDUSIC Card
„8ater LeaL Detection System
Power protection available, please contact Emerson /etworL Power sales for more details.
Chilled Water
DM)12
DM)17
11.6
16.3
Up¼ow Plenum and Down¼ow
3073ph0)[ or 3073ph60)[+/
Chilled 8ater
Electrode )umidi»er
6
1
1
2
170 Y 10 Y 390
1900 Y 610 Y 0
170 Y 110 Y 0
90
130
170
12
12
1
2
2
32
0.
0.6
0.
1
1
1.2
6
62
6
Model
Capacities, L8
Available con»guration
Power Supply
Refrigerant
)umidi»er1
Electric )eater Power, L8
/o. of fans
Dimension )Y8YD
, mm
/et 8eight, Lg
FLA2, A
Air breaLer
8ater ¼ow, ls
Inlet0utlet pipe diameter, inch
Total Pressure Drop, LPa
DM)09
.2
DM)2
23.2
6
2
1900 Y 120 Y 7
210
1
32
1
1.2
1
This is an optional feature.
FLA is Full Load Ampere; the maYimum full load current value of the air conditioner is not the sum of rated maYimum full load current of all
components. It is the sum of rated maYimum full load current value of the operating components, which may operate at the same time on the
maYimum worL load condition.
2
Chilled Water Dimension
DMH09, DMH12
D
DMH17, DMH25
W
D
H
10
W
H
Communications
The Liebert® DM™ Series can be managed through your IP networL.
As a standalone networL management device it provides the following:
„#rowser access through )TTP protocol
„Email noti»cations of critical events and potential operational impacts
„SMS alerts through your SMS gateway
„S/MP management through (ETSET requests and industry standard MI#
It is also compatible with Emerson management and monitoring systems for comprehensive
integration with computer rooms and critical applications.
Liebert® RDU™ Monitoring Interface
The Liebert® RDU™ offers maYimum visibility for insight in the infrastructure.
11
Emerson Network Power Asia
Australia
T: 100063
F: 612973737
Pakistan
T: 9223662226 to 2
F: 9223662230
Indonesia
T: 6221213003
F: 6221210622
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T: 632720700
F: 6326203693
Japan
T: 13036
F: 13032919
Singapore
T: 66672211
F: 66670130
Korea
T: 2233100
F: 229276
Thailand
T: 662617260
F: 662617277 to 7
Malaysia
T: 6037000
F: 60371
Vietnam
T: 376290
F: 3762909
New Zealand
T: 633392060
F: 633392063
www.EmersonNetworkPower.Asia
8hile every precaution has been taLen to ensure accuracy and completeness herein, Emerson /etworL Power assumes no responsibility, and disclaims all liability,
for damages resulting from use of this information or for any errors or omissions. Speci»cations are subject to change without notice.
Emerson /etworL Power and Liebert® are trademarLs of Emerson Electric Co. or one of its af»liated companies. All other names and logos referred to are trade
names, trademarLs, or registered trademarLs of their respective owners. ‰201 Emerson Electric Co.
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