A computer room air conditioning (CRAC) unit is a device that monitors and maintains the temperature, air distribution and humidity in a network room or data center. CRAC units are replacing air-conditioning units that were used in the past to cool data centers. According to Industrial Market Trends, mainframes and racks of servers can get as hot as a seven-foot tower of powered toaster ovens, so climate control is an important part of the data center's infrastructure. By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA. You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy. There are a variety of ways that the CRAC units can be situated. One CRAC setup that has been successful is the process of cooling air and having it dispensed through an elevated floor.

The air rises through the perforated sections, forming cold aisles. The cold air flows through the racks where it picks up heat before exiting from the rear of the racks. The warm exit air forms hot aisles behind the racks, and the hot air returns to the CRAC intakes, which are positioned above the floor.how to choose window air conditioner unit >> Stay up to date by receiving the latest IT term daily. carrier hvac parts storeSimply check "Word of the Day" to register.cheap wall ac units environment in your data center is critical to maximizing availability and performance of essential equipment. challenges of cooling these spaces mount as the move to smaller servers results in significantly higher power consumption and more

Data centers require spot cooling solutions that are designed to remove the total heat outputWhether you are designing your data center from the ground up or upgrading an existing data center, Mitsubishi Electric Cooling & Heating has the innovative VRF solutions that can help keep your critical systems up and running. Spot-On Solutions for Data Because data centers are high-density, enclosed spaces that generate a significant amount of heat, comfort cooling systems (traditional HVAC) can't remove enough heat to protect the criticalInstead, these unique areas require dedicated units with Mitsubishi compressors utilize innovative INVERTER-driven technology to maintain the right temperature. indoor and outdoor temperature changes, these ductless systems vary the compressor speed to meet load requirements and maintain the With i-see™ Sensors (available on select models), our indoor units detect the temperature in regions

closer to the ceiling and the floor to adjust the air output toAdditionally, the sensor also controls the airflow up to a 90° lateral angle for ultimate control by scanning the room and making adjustments based on the ambient Mitsubishi Electric Cooling & Heating systems have been designed to simplify everything from design to installation, integration, management and maintenance. As your data center grows, it's easy to add more cooling capacity. With ductless systems, you can add more units to cool largerOr, you can utilize Twinning kits that spread current system capacity over a larger area (dependent upon total system With innovative INVERTER and expansion-valve technology, Mitsubishi Electric Cooling & Heating systems consistently perform at 25% higher efficiency than traditional systems. It’s shorthand for Computer Room Air Conditioner, a key component in data center cooling. In this video, SoftLayer “Social Media Ninja” Kevin Hazard gives a basic explanation of how data center CRAC units work, along with a walk-around demonstration of airflow within a hot aisle/cold aisle raised-floor environment.

Due to the ambient noise in the data center, Kevin’s explanation had to be “yelled.” This video runs about 2 minutes. For more on cooling, see our Data Center Cooling Channel. For additional videos, check out our DCK video archive and the Data Center Videos channel on YouTube.Liebert Air Conditioning Solutions   - Liebert CRVThe Liebert CRV is a rack-sized self-contained precision cooling system that installs within a row of data center racks-close to the server heat source-for the most efficient cooling of critical IT equipment. The CRV features the Liebert iCOM Control System that modulates unit performance in real-time, based on conditions in the row. Monitoring up to 10 racks with 20 sensors, the Liebert CRV precisely controls air temperature, humidity and filtration in the surrounding racks. As part of Emerson Network Power, Liebert technology delivers flexible, efficient and ultra-reliable Liebert Air Conditioning solutions. Liebert precision cooling products provide the precise, year-round cooling required by sensitive electronics while protecting them from the environmental hazards of dust, temperature and humidity.

Liebert solutions include standalone, ceiling and wall-mount systems for spot, room and telecom shelter applications, and liquid chilling systems for medical imaging and industrial equipment. Liebert has also pioneered the development of new cooling solutions for high-density servers and switches. The Liebert XD family brings unprecedented flexibility and scalability to data center cooling. These solutions can complement existing cooling systems to increase the utilization of data center space and energy, while enabling a tiered approach to cooling based on temperatures within the entire room, specific zones or individual racks. Liebert Air Conditioning Direct Expansion Refrigerant SystemsLiebert XDF - High Heat Density EnclosureLiebert XDF is a secured enclosure with integrated high heat density cooling, providing the benefits of big room support in a cost-effective package. Optimized horizontal air circulation cools the protected equipment, both in standard mode and in the backup ventilation mode.

Liebert MCR - Mini Computer Room EnclosureThe Liebert MCR is a rack enclosure with integrated cooling and optional UPS protection, designed to ensure the long-term viability of IT equipment or other critical electronics.  Liebert Air Conditioning Floor Mount Precision Cooling SystemsLiebert Challenger 3000Liebert Challenger3000 provides complete control of temperature, humidity and air filtration. The unit offers an extremely compact footprint, ideal for facilities where space is at a premium. All critical components are front-accessible, so the unit may be corner-installed or installed flush against other equipment.  Liebert Cooling ApplianceDescriptionLiebert XDF High Heat Density EnclosureLiebert MCRMini Computer Room EnclosureLiebert ChallengerFloor Mount Precision Cooling System Liebert Water Coolant SystemsLiebert Cooling ApplianceDescriptionLiebert XDK-WRack Enclosure with Integrated Water-Based Cooling for High Heat Density ElectronicsLiebert XDR-WBack-of-Rack Cooling ModuleLiebert XDP-WWater-Based Cooling Pumping Unit