Liebert® DS™ Designed To A Higher Standard Of Performance And Reliability
Emerson Network Power Understands The Need For Precision And Reliability... And Why This Is So Important To You For sensitive electronics, environmental control is more than simple cooling. “Comfort” air conditioning systems are designed to cool people and office space. They simply cannot provide the kind of environment required by high performance computer or communication equipment.
The Liebert® DS™ is Designed and Built Like No Other Why You Should Specify Liebert DS Over Competitive Precision Systems Proper protection of critical facilities takes more than bolting together pre-engineered computer room cooling modules. In many cases, your critical systems are only as reliable as the support equipment protecting them. Compromising on a less capable precision cooling system can compromise your operations.
Engineered For Precision, Efficiency And Strength The Liebert® DS™ is designed to fit room applications requiring high level precision control of the room environment, including temperature, humidity, filtration and airflow. Precise Temperature And 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 control to within ±1°F (°C) and ±1% RH.
Front Access And Serviceability Save Valuable Floor Space Total front access provides space and serviceability benefits not found on previous models or competitive units. The Liebert® DS™ can be placed adjacent to or in back of other equipment or against a wall or partition. All key components are visible and accessible—from the front of the unit for easy maintenance and removal. Compressors are removable from front—isolated from air stream for easier maintenance.
Flexible Cooling Configurations The Liebert® DS™ provides a complete environmental control package, including both precision air conditioning as well as humidity control. Both upflow and downflow configurations are available to cover raised floor and non-raised applications. The Liebert DS product line has been designed to cover the widest possible range of application requirements.
The Widest Variety Of Air Supply Choices Downflow Supply Designed for raised-floor applications, the downflow air supply configuration is commonly found in data centers and other similar facilities housing sensitive electronic equipment. Top Front Supply with Plenum & Grille and Front Return In-the-space applications without ductwork, such as Telecommunications, Networks and Switching Centers, benefit from this economical configuration. Optional high filtration may be desirable.
Air Delivery System Designed For Optimized Air Distribution And Long Service Life Constant delivery of full airflow to keep delivering cold air when needed. 5-YEAR WARRANTY on drive components (bearings, belts, shaft, pulleys). Flexibility for high filtration or external static pressures up to 2.5”(625 Pa). Centrifugal blowers enable performance over a wide range of air volume and static pressure ranges. Pillow block fan bearing with minimum L3 life of 200,000 hours.
Energy Efficient Fan Selections Variable Speed Drive (VSD) Fan Motor Liebert® DS™ models with digital scroll are available with an optional variable speed drive (VSD) on the fan motor used to drive the centrifugal blowers, matching the motor speed to the room cooling requirements. This feature allows the unit to use far less motor energy to move room air.
Dependable, Effective Cooling System Draw-through design pulls air evenly through the cooling coil, reheat and humidification systems. Optional polymeric coating on coils protects against corrosion due to harsh environments. 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.
Hybrid Designs Deliver Maximum Energy Efficiency Optional 70/30 Cu/Ni free-cooling coil must be specified to prevent tube corrosion when used with a cooling tower loop or other open water system. Provides redundancy and energy savings for increased ROI. Optional econo-coil rests on an A-frame coil to minimize air pressure drop and increase efficiency. For even greater efficiency and reduced operating costs, Liebert® DS™ offers energy saving alternatives such as our GLYCOOL and Dual Cool options.
Air Delivery System Designed For Optimized Air Distribution And Long Service Life A key to the ability of a quality Precision Cooling system to control conditions within the critical space is its high “sensible heat ratio.” Unlike people, computers generate dry or “sensible” heat, but not humidity.
Natural air-gap. No need for back-flow prevention. Autoflush system reduces build-up of mineral deposits and impurities in the water pan. High water float switch shuts down humidifier upon high water. Bypass air slots ensure that moisture can be introduced into air stream. Cleanable stainless steel humidifier pan. Removable from front. Reheat Function The reheat function of the Liebert DS is primarily used to keep the temperature from going too low during the dehumidification cycle.
A Choice Of Compressors Offers Higher Efficiency, Adaptability And Reliable Operation A standard fixed-capacity scroll compressor. An optional Digital Scroll compressor with energy saving, variable capacity operation. The Standard Scroll Compressor: Rugged, Quiet, Efficient The standard scroll compressor offers efficient, reliable performance with a robust design that contains only a few moving parts. Quiet operation is accomplished through a continual, smooth compression process.
Four-Step Semi-Hermetic Compressors: Proven Performance The Liebert® DS™ Four-Step system achieves high levels of energy efficiency through the integration of two high-efficiency semi-hermetic compressors with capacity control valves, an advanced microprocessor control system and a computer-optimized cooling coil. The Four-Step system reduces compressor cooling capacity and energy consumption during periods of low room load conditions.
Liebert iCOM® Small Graphic Display 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.
Maintenance / Wellness Setup Large Graphic Display 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 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.
Easy Component and Control Option Access Electric Panel The electric panel of the Liebert® DS™ is designed for easy access to critical electrical and control components. IntelliSlot™ for easy plug-in of optional communication cards. Low voltage terminal strip provides connection flexibility. Optional disconnect switch available as nonlocking or locking. Location for optional secondary disconnect switch for non-critical loads. Deadfront panel folds down for easy viewing of electrical schematic.
Paradenser™ Cleanable Condenser Provides Liebert® DS™ With Longer Service Life Liebert DS offers the new Paradenser™ condenser for use in water/glycol systems. This patented component utilizes a counter-flow design and features a shell and tube type construction. Fully cleanable—eliminates costly condenser failures due to plugging and providing a longer service life. This reduces fouling and scaling which can degrade heat rejection performance and result in cooling system shutdown.
Liebert Heat Rejection Systems—Flexible ConfigurationsTo Meet Application Requirements Liebert Condensers & Drycoolers Emerson Network Power manufactures its own highefficiency Liebert air cooled condensers and drycoolers that are precisely matched to the heat rejection requirements of our precision air conditioning systems.
The Liebert DS Has A Solution To Meet Your Critical Needs Water Cooled Remote cooling tower No Other Precision Cooling System Offers This Much Flexibility A-frame coil Long recognized as the standard in environmental control systems for data center operations, the Liebert DS is built to the most demanding specifications in the industry with proven components and design.
Stand-Alone Monitoring And Leak Detection Solutions Autonomous microprocessor controlled modules are available to provide supervision, control and remote notification of Liebert® precision cooling equipment. These stand-alone devices include: Liebert Universal Monitor The Liebert Universal Monitor is an all-purpose, easy-to-use microprocessor-based monitoring panel with connections for up to 8 digital inputs, 8 digital outputs and 4 analog inputs.
Maximizing Your Investment Through Adaptive Monitoring Distributed Management With Liebert IntelliSlot® Interface Cards For enchanced remote communications and control of your Liebert units, the Liebert IntelliSlot Web and 485 Cards deliver the communication capabilities you require. Centralized Management With Liebert Nform™ Software As business grows, your critical equipment infrastructure will expand, thus the need for centralized management of this equipment will be key to your business success.
Emerson Network Power, a business of Emerson (NYSE:EMR), delivers software, hardware and services that maximize availability, capacity and efficiency for data centers, healthcare and industrial facilities. A trusted industry leader in smart infrastructure technologies, Emerson Network Power provides innovative data center infrastructure management solutions that bridge the gap between IT and facility management and deliver efficiency and uncompromised availability regardless of capacity demands.
