Precision Cooling for                                   Business-Critical ContinuityDesigned To A Higher StandardOf Perfor...
THE LIEBERT DS                                                                    IS DESIGNED                             ...
ENGINEERED FOR STRENGTH    AND APPLICATION FLEXIBILITY    The Liebert DS is designed to fit room applications requiring   ...
5Front Access And ServiceabilitySave Valuable Floor Space  Total front access provides space andserviceability benefits no...
Electric PanelThe electric panel of the Liebert DS isdesigned for easy access to criticalelectrical and control components...
DEPENDABLE, EFFECTIVE        COOLING SYSTEM        At the heart of the Liebert DS are its        cooling system components...
DUAL COOLING OPTIONINCREASES ENERGY EFFICIENCYFor even greater efficiency, Liebert offers energy efficientalternatives suc...
CONTROLLING THE                           CRITICAL ENVIRONMENT                           A key to the ability of a quality...
Minimum Efficiency Reporting Value (MERV),                               adopted by ASHRAE in its 52.2 standard.          ...
Digital Scroll Compressors                                                                                                ...
LIEBERT                                                                 The Liebert iCOM control system featured on the Li...
Standby Settings (Lead/Lag Set-up)                                              The optional Large                        ...
STAND-ALONE MONITORING AND     LEAK DETECTION SOLUTIONS                                                                   ...
MAXIMIZING YOUR INVESTMENTTHROUGH ADAPTIVE MONITORINGDistributed Management                   Centralized Mangement       ...
Ensuring The High Availability OfMission-Critical Data And Applications.                                                  ...
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  1. 1. Precision Cooling for Business-Critical ContinuityDesigned To A Higher StandardOf Performance And ReliabilityLiebert DS ™ 50 HzDownflow Model
  2. 2. LIEBERT UNDERSTANDS THE NEED FOR PRECISION AND RELIABILITY… AND WHY THIS IS SO IMPORTANT TO YOU For sensitive electronics, environmental control is more than We Have The Right Solution For Your simple cooling. “Comfort” air conditioning systems are Specific Application Liebert has identified a number of distinct zones or areas of designed to cool people and office space. They simply cannot2 application, found within many business-critical applications, provide the kind of environment required by high which have a requirement for mission-critical cooling performance computer or communication equipment. technologies. Each zone has similarities but with different needs for infrastructure protection — all of which can be met by Liebert solutions. Why You Can’t Take Chances Specific zones where the Liebert DS can be used include: When Cooling Your Critical Space I Data Centers I Telecom/CATV Standard building cooling systems are designed to keep I Computer Rooms I Labs And Testing people comfortable 8-12 hours each day, five days a week I Network Operations Centers I Production Facilities and only during the warmest months. Sensitive electronics must be maintained in a stable environment of 68°F to 77°F (20°C to 25°C) with a relative humidity of 40% to 55%. Because computers and communications equipment generate large quantities of heat in small areas, six to 10 times the heat density of normal office space, the air conditioning system must A Tradition Of Reliability You Can Count On have more than just enough cooling capacity. It must have Liebert Mission Critical Cooling equipment is the standard the precision to react quickly to a drastic change in by which all others are judged. The number of units that are in heat load and prevent wide temperature fluctuations the field far exceeds the combined number of all other brands. — something a large building HVAC system cannot do. 9 out of 10 Fortune 500 Companies use Liebert cooling systems. Liebert Mission-Critical Cooling Systems are used in the most demanding, critical applications in the world. From banking to 80 government to corporate computer and communications The ASHRAE document, “Thermal Guidelines centers, when it has to be the best — this is the brand of choice. for Data Processing Environments,” spells out 75 the temperature, dew point and humidity ity specifications for electronic components t in id Po um operating in mission-critical facilities. eH n 70 io Types of equipment typically found tiv ity at la id Re in these facilities are enterprise servers ns m Why You Should Specify Liebert Over % Hu de 60 e and storage products. 65 ti v n la Competitive Precision Systems Co Re ity id 0% m 5 Hu 60 ive Proper protection of critical facilities takes more than lat Re 55 40 % bolting together pre-engineered computer room cooling 50 modules. In many cases, your critical systems are only as Relative Humidity reliable as the support equipment protecting them. 60% 50% Primary precision air Compromising on a less capable precision cooling system 40% conditioning systems can compromise your operations. Your critical operations keep room temperature and humidity within demand support equipment that can provide the highest this area of control. 50 55 60 65 70 75 80 level of reliability. Room Temperature (°F)
  3. 3. THE LIEBERT DS IS DESIGNED AND BUILT LIKE NO OTHER 3 Designed For Reliability Because electronic system availability is required 24 hours a day, 365 days a year, the environmental control system must meet the same demands. The Liebert DS is designed with the highest quality components selected for their proven reliability. Microprocessor technology adds automatic sequencing of components to even wear and extend service life. An alarm system and self-diagnostics provide rapid troubleshooting and can prevent a problem before it affects the electronic equipment room environment. Year-Round Operation Under Many Climate Conditions Comfort conditioning systems cannotEngineering Excellence Goes be relied upon 24 hours per day 365 daysInto Every Liebert DS per year. They are typically designed to The Liebert DS is based on the proven design and operate 10 hours per day, from spring to autumn. Many comfort systems have notechnology of Liebert Deluxe Systems used in thousands provision for winter operation. A precisionof critical data centers around the world since 1965. environmental control system is designed to operate over a wide range of ambient Full scale analysis and evaluation of the Liebert DS during all temperatures from as low as –30°Fphases of development and production is your assurance of (-34.4°C) up to 120°F (48.9°C).the most advanced performance and highest quality. Units arethoroughly tested under a wide variety of temperature and Precise Temperature Andhumidity conditions. Humidity Control The environmental control system must be able to sense and react to temperature and humidity fluctuations far too small for building HVAC systems to control. The Liebert DS is capable of responding to changes as small as ±1°F (°C) and ±1% RH. By analyzing the rate of change in temperature or the moisture content in the environment, the control system anticipates what is going to happen in the room, not simply respond to what has happened.
  4. 4. ENGINEERED FOR STRENGTH AND APPLICATION FLEXIBILITY The Liebert DS is designed to fit room applications requiring Downflow Configurations4 Designed for use in raised floor applications, such as data high level precision control of room environment, including centers, the Liebert DS downflow configuration combines temperature, humidity, filtration and airflow. top air return with bottom air supply to circulate air underneath the floor. Designed For Energy Efficiency Liebert is dedicated to providing maximum energy Quality, Rugged Construction efficiency in its precision cooling systems without The durable design of the Liebert DS provides a stable, compromising the accuracy and reliability demanded by virtually vibrationless platform for compressor and fan sensitive electronics. All enhancements to energy efficiency operation. are designed to reduce operating time of key components Autophoretic® frame coating — protects frame against and increase the Mean Time Between Failure. This is corrosion for years of reliable service. accomplished by taking advantage of alternate sources Welded frame — 14 gauge steel provides rugged of cooling without being dependent on their availability construction, proven to withstand shipping and or by minimizing compressor operation when heat loads in handling through ISTA (International Safe Transit the conditioned space are lower. Energy savings is also Association) certified ship testing. gained through the use of high efficiency components Durable powder coated exterior panels — look such as advanced digital scroll and 4-step semi-hermetic good and stay that way. compressors. Slot and tab sheet metal — for consistent, quality construction. Optional double-skin panels — eliminate insulation in the air stream. This allows for easy panel cleaning. Optional Floorstands — Adjustable standard and seismic- rated floorstands allow for installation and connection of the system prior to the installation of the raised floor. Available in heights from 6” to 36”. A field installed turning vane may be specified.
  5. 5. 5Front Access And ServiceabilitySave Valuable Floor Space Total front access provides space andserviceability benefits not found onprevious models or competitive units.The Liebert DS can be placed adjacent toor in back of other equipment or againsta wall or partition. All key components visible andaccessible — from the front of the unitfor easy maintenance and removal. Compressors removable from front —isolated from air stream for easiermaintenance.Modular FrameConstruction The unit’s modular frameconstruction allows even moreflexibility in meeting specific needsfor installation, energy efficiencyand other special requirements. Frame can be field separated intothree sections — enables unit to fitinto small elevators or throughother tight spaces.
  6. 6. AIR DELIVERY SYSTEM DESIGNED FOR OPTIMIZED AIR DISTRIBUTION AND LONG SERVICE LIFE Centrifugal blowers enable performance over High efficiency 5-YEAR DRIVE COMPONENTS a wide range of air motor meets (bearings, belts, shaft, pulleys) volume and static NEMA Premium pressure ranges. motor standard. Computers and other sensitive electronics6 require greater air volumes than comfort air conditioning can provide. The high density heat load in the relatively small space of a data center requires more air changes to remove heat properly. A key to the outstanding performance of the Liebert DS is its optimized air delivery design. It combines high efficiency and effective air handling to deliver reliable, constant cooling under the most demanding conditions. Constant delivery Flexibility for Static regain Pillow block fan of full airflow to high filtration or duct improves bearing with keep delivering external static underfloor air minimum L3 life Special 5-year cold air whenever pressures up distribution. of 200,000 hours. Liebert Belt needed. to 2.5" (625 Pa). Pentadrive ™ Blower System Clean, even air distribution is supplied by large capacity fans, which are statically and dynamically balanced to Pentadrive Blower system/belt ™ minimize vibration. Air is drawn evenly and at low velocity tensioning: through the system, using less fan motor energy and operating more quietly than forced air blowers. Filtered air I Automatic Self-tensioning motor at the right temperature and humidity is fed positively and base increases belt life and reliability evenly into the room. of shaft and bearings. I Keeps constant tension on belt. I Maintains good sheave and pulley alignment. I Prevents over-tightening. I Dual belts for 100% redundancy.
  7. 7. Electric PanelThe electric panel of the Liebert DS isdesigned for easy access to criticalelectrical and control components. Low voltageOptional disconnect terminal stripswitch available Location for Solidstate contactors providesas locking or optional secondary for optional SCR Contactors, Miniature Circuit connection Control interfacenon-locking disconnect switch reheat IEC type Breakers flexibility board for easy access 7Unit Monitoring And Control OptionsI Dual float condensate pump — installed in unit, with secondary float to shutdown unit and trigger alarm if high water detected MotorsI Optional Low Voltage Terminal Package — two extra n/o common alarm contacts, The Liebert DS features fan motors two extra remote shutdown terminals, one main fan auxilliary contact, water sensor that are optimized for reliability and signal shutsdown unit, and provides dry contact (water sensor is optional). energy efficiency.I Smoke sensor — senses the return air, shuts down the unit upon detection, and sends High efficiency open drip proof visual and audible alarm. Dry contacts are available for a remote customer alarm. This motor meets National Electrical smoke sensor is not intended to function as, or replace, any room smoke detection system Manufacturers Association (NEMA) that may be required by local or national codes.I High temperature sensor — alerts users to any high temperature situations Premium motor standard. within the system. Senses return air temperature and shuts down unit if temperature Motor Options exceeds 125°F (51.7°C) I Optional TEFC (totally enclosedI Analog input wiring — includes four customer accessible analog inputs for sensors provided by others. The analog inputs accept a 4 to 20 mA signal. Gains fan-cooled) motors — for rugged Calibration for each input are programmable from the front panel. industrial environments.I Compressor overload — activates an audible and visual alarm in the event I Optional larger horsepower of a compressor overload. motors available — for higher airI Main Fan Overload - activates an audible and visual alarm in the event of a volume or higher static pressures. motor overload.
  8. 8. DEPENDABLE, EFFECTIVE COOLING SYSTEM At the heart of the Liebert DS are its cooling system components, each designed to provide maximum reliability.8 Draw through design pulls air evenly through the cooling coil, reheat and humidification systems. A-frame coil design maximizes coil area reduces air velocity, lowers chance of water blowing off coil, results in far less turbulence with superior efficiencies in heat transfer. Optional polymeric coating on coils protects against corrosion due to harsh environments. A-frame coil Refrigeration System Features This Liebert designed and manufactured A-Frame coil Each refrigeration circuit includes: features a large face area/low face velocity design for precise I Sight glasses — serve as a means of quick visual inspection control of cooling and dehumidification — and is designed to to determine if there is moisture in the system and if the optimize heat transfer and minimize pressure drop. system is properly charged. I Refrigerant dehydrators — assure a moisture-free Dual Refrigeration Circuits For Redundancy refrigerant system for extended component life. Dual compressors and refrigeration circuits assure reliability I Expansion valve — externally equalized expansion and feature automatic sequencing for even wear of valves smoothly control refrigerant flow during indoor components. heat loads and outdoor ambients by controlling I Components include — dual compressors and dual evaporator superheat. refrigeration circuits enabling the system to operate even if I Muffler — specially engineered mufflers afford a quiet one circuit fails. pulsation free refrigeration system. I Pump-down evacuation of refrigerant from compressor I Safety controls — Each compressor has an automatic crankcase — shields the compressors from the "hard starts" reset high pressure switch, that locks-out after the third that can shorten their life. trip. A low pressure transducer protects against coil freezing and low refrigerant pressure.
  9. 9. DUAL COOLING OPTIONINCREASES ENERGY EFFICIENCYFor even greater efficiency, Liebert offers energy efficientalternatives such as its Dual Cool option, which providecompressorless operation, where climate permits, tosubstantially reduce energy costs. Dual Cooling coil increases availability by 9 using building chilled water as primary, compressor as back-up. Optional econo-coil nested within A-frame coil to minimize air pressure drop and increase efficiency Provides redundancy and energy savings for increased ROI. Optional 70/30 Cu/Ni free-cooling coil must be specified to prevent tube corrosion when using with a cooling tower loop or other open water system. Dual Cool Utilizing this option, a conventional air cooled Liebert DS Modulating econo- coil valve controls is converted to a dual source cooling system by the addition chilled water for of a second coil that utilizes a central building chiller supply. dual-cooling systems Using a modulating control valve and a comparative temperature sensor, the unit can function either as a chilled water system, as a compressorized system — Modulating valve— for or a combination of both. optional dual During times when the chiller supply is available, cooling or free-cooling coil. compressor operation is eliminated, reducing energy costs. . Switchover between the two cooling modes is performed automatically by a microprocessor control and temperature sensor. In addition to energy efficiency, this option can provide increased redundancy and flexibility to the environmental control system.
  10. 10. CONTROLLING THE CRITICAL ENVIRONMENT A key to the ability of a quality Mission Critical Cooling system to control conditions within the critical space is its high “sensible heat ratio.” Standard Infrared Humidifier Instant humidification on when needed, off when not needed.10 Unlike people, computers generate dry or “sensible” heat, but not humidity. With a large percentage of their total capacity devoted to the removal of moisture, comfort systems can lower room humidity far below acceptable standards for electronic equipment — and they have no provisions for adding moisture. To correct this situation, precision air conditioning systems typically have a high ratio of sensible-to-total cooling capacity to remove heat from the air. This capability is provided through the use of integrated humidification systems to provide the necessary level of moisture control, higher air supply capacity and larger coil size. Humidifier make-up Pure water vapor Does not depend on water quality. High valve controls flow provides most intensity quartz lamps shine on water of water to the effective creating instantaneous moisture using humidifier pan. humidification. almost any water quality. Humidity Control Maintaining the correct humidity level in the room is just as important as maintaining proper temperature. Inadequate humidity control can cause static electricity if it’s too dry — or condensation that can corrode circuitry if the air is too moist. Comfort cooling systems can lower room humidity far below acceptable standards for electronic equipment — and they usually have no Optional Steam Generating provisions for adding moisture. The Liebert DS utilizes an integrated Canister Humidifier humidification system to provide the necessary level of moisture control. I Utilizes replaceable bottle— requires a specific water quality Dehumidification Control level for optimum operation. The compressors operate at full capacity during dehumidification. The I Utilizes a drain and refill cycle— precision control of the Liebert DS saves energy by tightly regulating to maintain a current setpoint. compressor operation and avoiding over-dehumidification that causes the humidifier to come on when not needed.
  11. 11. Minimum Efficiency Reporting Value (MERV), adopted by ASHRAE in its 52.2 standard. 11 Filtration System The Liebert DS features integral air filtration to protect against airborne contaminants within the critical environment. Without proper air filtration, even small amounts of dust and other particles can damage storage media and charged electronic components. • High efficiency air-filtration — removes damaging particles from air. • Standard filter — 4” deep, Merv 8. (45% ASHRAE 52.1). • Optional high efficiency filter — 4” deep, Merv Merv 11 (60-65% ASHRAE 52.1) • Optional 2" Merv7 pre-filter with 2" Merv 11 filter. • V bank filter arrangement — reduces air pressure drop, top filter access.Autoflush system High water float Bypass air slots Cleanable stainless Natural air-gap.reduces build-up switch shuts ensure that steel humidifier No need for back-mineral deposits down humidifier moisture can be pan. Removable flow prevention.and impurities in upon high water. introduced into from front.the water pan. air stream. Reheat Options Reheat Function I SCR electric reheat — For The reheat function of the Liebert DS is primarily specialized applications requiring used to keep the temperature from going too low tight temperature control. during the dehumidification cycle. Multiple pulses of reheat vs. three equal stages provide smooth Standard Reheat temperature adjustment. I Three-stage electric reheat — low watt-density, 304 I Optional hot water reheat — stainless-steel fin-tubular reheat, location maximizes Uses existing building hot water, airflow to maximize element life and improve reliability. saving energy. I Reheat/humidifier lockout — Reduces power requirements during emergency power operation.
  12. 12. A CHOICE OF COMPRESSORS OFFERS HIGHER EFFICIENCY, ADAPTABILITY AND RELIABLE OPERATION It Starts With Reliable Scroll New Refrigerants To Meet Government Regulations Compressor Technology Without the ability to utilize newer environmentally-friendly The scroll compressor design provides high efficiency, refrigerants, your cooling equipment could become obsolete low sound levels and excellent durability. The Liebert DS and “out of compliance.” The Montreal Protocol and EPA precision cooling system is available with either: Clean Air Act require cooling equipment manufacturers to I A standard fixed-capacity scroll compressor. switch to environmentally-friendly refrigerants by 2010 I An optional Digital Scroll compressor with energy I R-407C — is Liebert’s choice for optional environmentally-12 saving, variable capacity operation. friendly refrigerant to meet future environmental standards. This is the best fit for Liebert applications, with The Standard Scroll Compressor: near drop-in replacement. Rugged, Quiet, Efficient I R-22 — is the standard refrigerant offered in the Liebert DS The standard scroll compressor offers efficient, reliable I Field conversion — from R-22 to R-407C refrigerant is performance with a robust design that contains only a few most practical for scroll compressors. Systems operating moving parts. Quiet operation is accomplished through on R-22 use mineral oil, while R-407C refrigerants utilize a continual, smooth compression process. Discharge gas POE (polyolester) oil. Therefore, a complete system and vibration are kept at a low level. clean-out may be required. The Digital Scroll Compressor: A New Standard For Performance and Reliability The exclusive digital scroll compressor option on the Liebert DS utilizes the latest control technology to deliver precise operation and significantly higher energy efficiency. In addition to the advantages of the dependable scroll design, Digital Scroll technology provides infinitely variable capacity modulation that enables the output to precisely match the changing cooling demands of the room. This approach is as much as 30 percent more efficient than traditional hot-gas bypass. Benefits include: I Greater energy savings— variable capacity system allows maximum load tracking for higher efficiency. I Improved reliability — by reducing compressor cycling and component wear. I Improved Performance — the compressor can easily adapt to changing load conditions, providing precise temperature control.
  13. 13. Digital Scroll Compressors Cumulative Compressor Cycles No other precision air conditioning product line offers As Load Grows From 50% To 100%as many choices for energy efficiency as the Liebert DS.The exclusive digital scroll compressor option utilizes the 60% Load 70% Load 80% Load 90% Load 140000latest control technology to deliver significantly higher Cumulative Compressor Cycles 120000 Single Compressorenergy efficiency. 100000I Variable capacity system — for maximum load tracking, 80000 Two Compressors 13 reduced compressor cycling and minimized compressor wear. 60000I Optional crankcase heater — for quick start operation. 40000I Saves energy over single-stage compressors. 20000I Improves reliability by reducing compressor cycling. Digital Compressor 0 Year 1 Year 2 Year 3 Year 4 Increasing compressor cycling takes a toll on compressor life. Liebert Four-Step Semi-Hermetic compressors and Digital Scroll compressors automatically adjust to yearly increases in heat Digital Scroll Capacity Control Diagram load, providing significantly greater component life than other compressor technologies. 100% 7.5 secs capacity 50% Load 0% 7.5 secs capacity 15 secs 5 secs 33% Load 10 secs 15 secs Digital Scroll Capacity adapts as load changes Future Load 100% Initial Load 10% Capacity Load
  14. 14. LIEBERT The Liebert iCOM control system featured on the Liebert DS brings high-level supervision to multiple units allowing them to work together as a single system to optimize room performance. The Liebert iCOM control system offers a variety of advantages. The standard Small14 Graphic Display features a 128x64 dot matrix backlit screen. Advanced monitoring can be achieved with the addition of the Optional Wall Mounted Display. Removable display makes servicing easier. Small Graphic Display Intelligent Communications Parts list available on control for easier maintenance. And Monitoring I Saves Energy using Predictive Humidity Control. I Built-in Lead/Lag Functions for enhanced system reliability. I Wellness Calculation alerts service personnel before problems occur. I Unit to Unit Communications allows Lead/Lag and optional teamwork settings for maximum flexibility of control. Monitors all key system functions and reports to alarm, if needed. The Optional Wall Mounted Large Graphic Display provides centralized monitoring and On-board Unit Diary provides a control of connected maintenance history to any Liebert DS units. authorized user.
  15. 15. Standby Settings (Lead/Lag Set-up) The optional Large Graphic Display features a 320x240 dot matrix backlit screen with helpful system and maintenance views. Additional Views Available with Large Graphic Displays 15 I System View — Allows you to see the average operation of the “system” or all units that are working together in Unit to Unit (U2U) Communication mode for Teamwork or Lead/Lag from a centralized location. I Spare Parts List — Critical spare part numbers are saved in unit memory and may be displayed on the Large Graphic Display, speeding Maintenance/ identification of parts.Large Graphic Display Wellness Set-up I Unit Diary — Free field area within the unit memory where unit maintenance shares history with any authorized users or logged-in service contacts, including record of what others have done.Spare Parts Unit DiaryU2U Configuration 2 Teamwork: Mode 2Liebert DS units with Small Graphic Display may Units work together to provide precisionbe centrally monitored and controlled with the cooling in rooms with unbalanced loads.Optional Wall Mounted Display.
  16. 16. PARADENSER ™ CLEANABLE CONDENSER PROVIDES LIEBERT DS WITH LONGER SERVICE LIFE The Liebert DS mission-critical cooling system offers the new16 Paradenser ™ condenser for use in water/glycol systems. This patented component utilizes a counter-flow design and features a shell and tube type construction. I Fully cleanable — eliminates costly condenser failures due to plugging and providing a longer service life. Large water passages prevent plugging and allow for conventional tube cleaning methods. I Constructed of copper tubes with removable cast iron heads nickel plated plugs— the Paradenser can be mechanically cleaned from the top. I Shell side of the condenser acts as a receiver — holds refrigerant charge during pumpdown. I Works equally well with either R-407C or R-22 Fully cleanable Paradenser refrigerants — Counterflow design and high refrigerant tubes are located for convenient maintenance. velocities significantly maintain performance when using R-407C refrigerant. I Utilizes no gaskets — offers further reliability by preventing leaks.
  17. 17. LIEBERT HEAT REJECTION SYSTEMS— FLEXIBLE CONFIGURATIONS TO MEET APPLICATION REQUIREMENTSLiebert Condensers Liebert manufactures its own 17high-efficiency, air cooled condensersthat are precisely matched to theheat rejection requirements of ourprecision air conditioning systems.Constructed with an aluminumcabinet and a copper-tube aluminum-fin coil, these exceptionallydependable units are corrosionresistant and designed to operate forprolonged periods of exposure to theworst weather conditions. Liebertcondensers are fully factory wiredand tested for easy installation.I Wide range of configurations — including horizontal and I Indoor piggyback condensers — convert Liebert vertical airflow configurations. environmental control units to completely self-containedI Standard units — ambient temperature ratings of 85°F systems in applications where an outdoor heat rejection (29.4°C) to 105°F (40.6°C). location is not practical, such as high-rise buildings.I Liebert Lee-Temp option — winter control system’s I Indoor centrifugal condensers — high rise applications heated receivers permit startup and positive head pressure where outdoor heat rejection is not available control at ambient temperatures as low as -30°F (-34.4°C). I High ambient condensers — utilize increased coil surfacesI Fan Speed Control — winter control system features a for operation in outdoor climates up to variable speed motor specifically designed to be used in 120°F (48.9°C). conjunction with the solidstate fan-speed control I Quiet-Line™ condensers — operate with the lowest noise transducer. These transducers directly sense the head level of any heat rejection equipment available, offering pressure of either of the compressors and vary the speed of levels of less than 57 dBA. the fan to maintain constant condensing temperature and system capacity. This system allows for operation at ambient temperatures as low as -20°F (-28.9°C).
  18. 18. STAND-ALONE MONITORING AND LEAK DETECTION SOLUTIONS Liqui-tect 410 Point Leak Detection Autonomous microprocessor controlled modules are available to provide Configuration supervision, control and remote notification of Liebert precision cooling equipment. These stand-alone devices include: Liebert Universal Monitor18 The Liebert Universal Monitor is an all-purpose easy Liqui-tect to use, microprocessor-based monitoring panel with 460 Zone Leak Detection connections for up to 8 digital inputs, 8 digital outputs and 4 Configuration analog inputs. Designed to bring critical monitoring information directly to your facility or offsite location, the unit includes an on-board modem to provide remote monitoring while minimizing configuration and installation requirements. It features a built-in LCD user interface, making the panel self contained and accessible without additional hardware and software. Contact Closure Alarm Panels Liebert Leak Detection Modules The Liebert RCM series of contact closure alarm panels Liebert Liqui-tect® leak detection systems provide provides customized alarm indication at a single location for quick sensing and accurate reporting of leaks below any dry contact input from environmental, power and UPS the floor or above the ceiling in critical facilities. systems, including Liebert units. These remote systems These reliable systems provide immediate warning continuously monitor your most critical support equipment and precise location, allowing you to find and and instantly alert you to alarm conditions. Three different correct a leak before moisture can damage computers, system configurations are available for monitoring up to wiring connections or other sensitive electronics. eight points with communications and pager interface plus eight digital outputs. Temperature and Humidity Recorder A seven-day temperature and humidity recorder permits close examination of computer room environment condition and can be used as a permanent record of the environmental control systems operation efficiency. Liebert Universal Monitor
  19. 19. MAXIMIZING YOUR INVESTMENTTHROUGH ADAPTIVE MONITORINGDistributed Management Centralized Mangement Enterprise Managementwith OpenComms with OpenComms with SiteScan WebInterface Cards Nform Software Software For enchanced remote communications As business grows your critical For customers that require extensiveand control of your Liebert units, the equipment infrastructure will expand, management of critical systemOpenComms Web cards will deliever thus the need for centrailzed equipment that may spand multipleSNMP and web-management management of this equipment will locations in an ever moving global 19communications capabilities. be key to your business success. enterprise, SiteScan Web will centrally Connecting to equipment in the manage your critical equipment and Monitoring and control through distributed critcial space is only part give you the power to move beyondyour existing Network with not of the monitoring challenge. the event responsive service paridigm.additional software required. Liebert OpenComms Nform SiteScan Web does it all — I Real-Time Monitoring and Control Each Liebert system equipped with leverages the network connectivity I Event Management and Reportingan OpenComms Web card takes full capabilities of your Liebert equipment I Data Analysis and Trendingadvantage of your Ethernet network, to provided a centralized monitoring I Building Management Integrationallowing remote monitoring from your view of your distributed desktop, network operations Liebert SiteScan®Web is acenter or whereever network access Utilizing the SNMP and Web comprehensive critical systemsis permitted, without the need for technologies built into each of the management solution dedicated tofront-end software. OpenComms communication cards, ensuring reliability through graphics, The OpenComms Web cards support OpenComms Nform will centrally event management and data10 and 100 MBit Ethernet network manage alarm notifications to provide extrapolation. The standard Webtransmissions speeds, which will be you with an easy interface to access interface allows users easy accessauto-detected upon connection to critical status information. OpenComms from anywhere at anytime.the network. Plus, these cards support Nform puts critical systems I Single and multi-site firmware updates, which information at the fingertips of I Event management and unit control.increase the value of your investment. support personnel - wherever they I Trend and historical data captures are- increasing responsiveness to and reporting. alarm-event conditions, thus allowing I Full ASHRAE BACnet compatibility. I Java based. IT organizations to maximize their I Windows 2000, XP and 2003 system availability. compatible. Site Scan Web OpenComms Nform OpenComms Web
  20. 20. Ensuring The High Availability OfMission-Critical Data And Applications. Liebert Corporation 1050 Dearborn Drive P.O. Box 29186 Columbus, Ohio 43229 800 877 9222 Phone (U.S. &Trust Liebert to deliver power protection and cooling strategies to ensure Canada Only)business continuity through the high constant availability of mission-critical data, 614 888 0246 Phone (Outside U.S.) 614 841 6022 FAXapplications and communications. Via Leonardo Da Vinci 8 Zona Industriale Tognana Liebert provides a high-availability strategy of applying adaptive 35028 Piove Di Sacco (PD)technologies across your network. This expertise comes from decades Italy 39 049 9719 111 Phoneof protecting the most critical systems in the world from downtime, data 39 049 5841 257 FAXloss and equipment damage. Liebert knows how to assess your network Emerson Network Power Asia Pacificavailability to ensure your enterprise information and applications will 7/F., Dah Sing Financial Centrealways be available, even as networks and technology change. 108 Gloucester Rd, Wanchai Hong Kong 852 25722201 Phone Liebert delivers unmatched support and service before, during and after 852 28029250 FAXinstallation. Liebert is the only company in the industry that maintains liebert.coma national network of technical experts to assess customer needs andrecommend appropriate solutions. And, Liebert provides comprehensive 24 x 7 Tech Supportsupport through the largest service organization in the industry. Liebert 800 222 5877 Phone 614 841 6755 (outside U.S.)is backed by the development and technology resources as well as theexpertise of Emerson Network Power, the global leader in powering While every precaution has been taken to ensure accuracy and completeness in this literature, Liebert Corporation assumes nobusiness-critical systems. responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. © 2005 Liebert Corporation. All rights reserved throughout the world. Specifications subject to change without notice. The full range of Liebert solutions helps you create an information All names referred to are trademarks or registered trademarks of their respective owners.infrastructure that delivers the level of network reliability you need— ® Liebert and the Liebert logo are registered trademarks of the Liebert Corporation.both now and in the future—to keep your business running. SLI-18810 (R2/06) Printed in USAEmerson Network Power.The global leader in enabling business-critical continuity. AC Power Systems Embedded Power Outside Plant Connectivity Power Protection Precision Cooling DC Power Systems Integrated Cabinet Solutions Site Monitoring and ServicesEmerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2006 Emerson Electric Co.