Climaveneta for Data Center. The Milestone Of Green Data Center Cooling Technology
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- Amanda Beasley
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1 Climaveneta for Data Center The Milestone Of Green Data Center Cooling Technology
2 The future of data centers brings both advanced technologies and exponential data exchange that strongly increase heat loads per square meter. Structural limits result in higher and higher power densities affecting the development and design of server rooms. 2 l 3
3 Energy efficiency is crucial in data centers that require the latest cooling technologies to ensure the reliability and high performance of these critical applications. Server usage in both upgraded and newly designed data centers will, over time, lead to increasingly higher performance that eventually will result in higher density power loads. The data center environment is critical and requires a guarantee of reliability, device safety and modularity. Preparing for the modular infrastructure evolution, the IT room has several standards, classifications and certifications to comply with. The key factor that must be continuously improved is energy efficiency to cope with more demanding OPEX requirements, and the global footprint, which greatly affects CAPEX. Virtualisation, Cloud Computing and Internal Redundancy also greatly contribute to server room development with many powerful and concentrated servers creating racks exceeding 40 in less than one square meter (or 10 square feet). Cooling such loads is a serious challenge for the air conditioning industry and only solid technological innovations backed by R&D and experienced staff can provide the right solutions. The answers lie in the use and combination of the most sophisticated technologies such as MAGNETIC LEVITATION and FULL ELECTRONIC MODULATION cooling equipment. As a race car needs an experienced driver, high tech components require superb design capacities as well as a deep understanding of the application's requirements. Climaveneta has a full range of cooling solutions that include state of the art, efficient and reliable cooling technologies for ICT environments. Product Heat Density Trend Chart Heat load per equipment footprint - watts/ft Heat load per equipment footprint - watts/m 2 Communication equipment (frames) Servers & disk storage systems (1,8-2,2m tall) Workstations (standalone) Tape storage systems Microproccessor performace growth, even though compensated by increased efficiency, lead to the growth of power generated density. The evidence is such that, to represent the phenomenon, a logarithmic scale is necessary. (Source: Uptime Institute) Years Thermal Load Trend by ASHRAE 45 Computer Servers - Blade Server 30 Heat Load [/Rack] Progressive diffusion of incoming virtualisation and BLADE SERVERS characterised by increasing power in limited volumes, leads to the unrelenting growth of loads which consequently increases thermal power per m 2. Years
4 according to actual data center heat loads and instantaneous working conditions Density Zone > 25 /rack Density Zone /rac ack Density Zone < 5 /r /rack 4 l 5
5 for data center efficiency Based on a 40-year experience in providing high efficiency cooling solutions, Climaveneta's solutions: Reduce operating costs The growing energy demand in modern data centers implies that every energy improvement allows for a significant reduction in OPEX (operating costs). In infrastructures working 24 hours per day, 365 days per year, over an average of 10 years, this accounts for the largest proportion of overall costs. Use the available power capacity in the best way Many facilities, especially in crowded urban areas, cannot install more servers because power feeds are at capacity. In these situations the key option is to improve the energy performance of the whole data center. Optimise areas A green, energy efficient approach to data centers has positive implications also for optimising space. It allows more effective use of the data center, concentrating cooling units along the walls, reducing waste due to cooling dispersion and delaying the need of building new rooms. Increase sustainability Growing digitalization and consequent energy consumption transform data centers into a very critical application regarding TEWI. Intelligent energy management is crucial not only for profitability but also for sustainability. Ensure reliability and extended lifetime Reliability is a key word when it comes to infrastructures of IT operations. Good server operation mostly depends on a perfect 24/7 cooling system. This ensures that servers are not exposed to potentially dangerous warm air that can result in thermal stress which decreases the IT equipment lifetime.
6 The awareness of data center requirements and the commitment to improve their energy efficiency has led to the development of dedicated indeces for these applications. All Climaveneta solutions are developed to optimise these metrics, allowing for a transparent evaluation of the real benefits offered by our approach to HD. Data center cooling & power load consumption Power and cooling represent the lion's share of the energy consumed in a data center, although they are not directly linked with the value adding operations of the data center. Accurate measurements of heat loads are the essential base for highly efficient green data center design. 55% Power and cooling 45% IT load Data center power consumption by apparatus 50% 45% 40% 8% Chiller IT equipment 35% 30% 25% 20% 15% 10% 5% 0% 6% 32% 30% 18% 5% 1% 1% Power distrib. units CRAC Humidification UPS Lighting Switchgear/generator 6 l 7
7 CAPEX Capital Expenditure The data center is a valuable asset for a company. All expenses relating to the infrastructure, especially high-tech solutions, remain within the company by adding value and extending the life span of the data center. OPEX Operating Expenditure Running costs of a data center operating 24 hours a day, 365 days a year for an average of 10 years, are crucial for those who must manage it. Even a small saving becomes very significant over time. This justifies even very high initial investments and justifies an anticipated system refurbishment, aimed at improving their efficiency. T.F.P. IT.E.P. % P.U.E. PUE Percentage of effectiveness = Total Facility Power / Equipment Power It considers the overall energy efficiency of the data center, measured as the ratio between total absorbed power and the power needed by the servers. As only energy used to transfer data creates value for the data center, a ratio close to 1 would represent the condition of optimum efficiency. Most data centers have a PUE between 2 and 3, excellent values are between 1,2 and 1,5. DCiE = 1/PUE x 100 Reciprocal of PUE, DCiE shows the % of power absorbed by IT infrastructure, compared to the overall data center consumption. Values close to 33% are usual for traditional data centers. DCiE of 66% reflects a very high energy efficiency. D C i E 33% 66% 51% 42%
8 Driven by increased data exchange, rising power densities and heat levels, data center design has changed dramatically over time. Cooling devices should therefore evolve together with data center changes ensuring: High flexibility Over the years, data center design has been continuously changed from the original design, including important changes in terms of: a Shape & architecture a Computing capacity a New technologies, always adopting the latest rack and server solutions a Heat dissipation Great Scalability Data centers require scalable design to: a Manage different heat loads for different areas a Manage an increasing heat load over time a Accomodate new areas to be cooled Climaveneta best practices Extensive research in this application has resulted in some best practices, which are a must for an efficient data center. Climaveneta solutions are designed to perfectly fit with this approach. Optimised air flow management Optimised air flow design, directing cold air through the raised floor to form cold aisles in front of the rack air intake. 8 l 9
9 Reliable operation 100,00 99,95 99,90 Reliability uptime RELIABILITY - TIER Classification (by Uptime Institute) defines the acceptable downtime per data center. < TIER I: 99,671% (28,8 hours downtime) Reliability 99,85 99,80 99,75 99,70 99,65 99,60 I II III IV TIER 99,9995% hours/year < TIER II: 99,741% (22,7 hours downtime) < TIER III: 99,982% (1,58 hours downtime) < TIER IV: 99,995% (0,44 hours downtime) Redundancy is the typical way to increase uptime. In facing the cooling problems only smart solutions can avoid the disaster of shut-down while limiting CAPEX and OPEX. Reliability must look at a full 360 view. TIER I TIER II TIER III TIER IV Number of Delivery Paths Only 1 Only 1 1 Active 1 Passive 2 Active Redundancy N N + 1 N + 1 S + S or 2 (N + 1) Aisle Containment No No No Yes Concurrently Maintainable No No Yes Yes Fault tolerance to Worst Event None None None Yes Hot and cold aisles Hot & cold aisles address layout air-flow to the servers to ensure a constant temperature. Working conditions become more stable and the efficiency of the whole cooling system increases. Localised cooling Dedicated localised cooling directly targets hot spots as well as integrating the hot & cold aisle. Highest efficiency with water cooled systems Optimised hydronic solutions for HPAC combine energy efficiency with flexible performance and utmost reliability.
10 Climaveneta HPAC solutions are adaptive cooling systems based on actual data center heat load requirements (/rack). Designed to achieve unparalleled efficiency perfomance and total reliability, the wide range of Climaveneta high precision solutions provides customers with the answer for every kind of data center. density zone < 5 /rack Hot/Cold aisle An easy, fast and long-lasting solution; the hot & cold aisle is the basic and essential concept that drives the layout of all data denters. a Through the raised floor, air can be easily delivered exactly where required (in front of the rack) allowing easy management of redundant cooling units. Cold Aisle Rack Rack Cold Aisle Rack Rack Cold Aisle a Flexible design, providing maximum freedom in accommodating new rack distribution or even major infrastructure changes. 32,2 C 26,7 C 21,1 C 15,6 C 10 C a Lowest CAPEX allows more investment in more productive equipment. 10 l 11
11 density zone /rack density zone > 25 /rack Aisle Containment AISLE CONTAINMENT prevents the HOT & COLD air from mixing in the upper section of the racks, guaranteeing homogeneous air flow. a No mixing between Hot & Cold air streams in order to avoid energy waste. a Additional 15% energy saving depending on the data center layout. a Quick and easy solution with low initial investments. a Complete integration with existing perimeter CRAC units. a Immediate energy benefits. Aisle Containment + Localised Cooling to manage hot spots CCD (Climaveneta Cooling Door) & CRC (Climaveneta Rack Cooler) guarantee ideal integration to manage HOT SPOTS caused by new blade servers, providing extra local cooling exactly where it is needed. a Extra cooling only where required. a Direct expansion inverter type or Chilled water system for complete cooling system flexibility. a Modulating Air flow thanks to EC high efficiency fans. The fans adapt to the thermal load detected by sensors positioned in the hot and cold aisle. This increases efficiency and reduces air stratification. a Perfectly compatible with most racks and ready for extension of the cooling system.
12 density zone < 5 /rack Data centers are specifically designed to create hot and cold aisles. Cold air is delivered through the floor or ducts exactly where it is needed and hot air returns to the HPAC units, thus improving the set point and the overall energy efficiency of the system. This system allows: a High efficiency a Perfect redundancy a Quick and easy expansion a Low initial investment The hot and cold aisle solution overcomes the limits of a traditional approach where cooling aims to maintain stable room conditions, forgetting to focus on the racks requirements. Cold Aisle 32,2 C Rack 26,7 C Rack Cold Aisle Rack Rack Cold Aisle 21,1 C 15,6 C 10 C In the last decade the data center design has dramatically changed. Years ago data center design was not driven by heat loads, so server distribution in the room was driven by other needs leading to only one reference room temperature. This used to be from 18 C to 24 C and it was an accepted standard throughout the world. As soon as server heat generation increased, it became clear a more rational distribution of heat was necessary; this resulted in the Hot & Cold Aisle concept. The arrangement of rack servers according to this logic allows delivery of cold air-flow exactly where it is needed - i.e. typically in front of the racks, greatly reducing the chances of cold and hot air mixing. This system increases the efficiency of the cooling system by 20% if compared to traditional layouts. On the other hand, this new concept requires two levels of temperatures to be properly defined.the optimisation of these temperatures leads to greatly improved working conditions. 12 l 13
13 Constant air flow and pressure management systems At the same time, the use of a raised floor has demostrated the clear advantage of distributing air where needed with negligible energy consumption. Those who designed very high raised floors could ensure extended life of their fast changing data centers. But such growth includes an increase of racks, data and power cabling and other ancillary services that almost completely fill the raised floor void, resulting in unexpected effects in air distribution. The best way, and sometimes the only way, to cope with this is to keep constant pressure in the floor void; this is fundamental to keep the required air distribution. What appeared to be a complicated problem to solve is now removed by the new Climaveneta pressure system. All HPAC units can be connected to several pressure sensors and the air control system automatically manages airflows in order to keep steady ambient conditions for the servers. The feature can be customised as Constant Air Pressure or Constant Air-Flow.
14 density zone /rack Aisle containment When hot and cold aisles are not enough to prevent air mixing, Aisle Containment ensures a perfect and homogeneous airflow to the server inlet. This system allows: a significant improvement in efficiency a tight control of conditioned air feeding the servers a the addition of more servers in less volume 32,2 C 26,7 C 21,1 C 15,6 C 10 C No aisle containment With aisle containment Aisle containment In medium/high density applications the presence of hot and cold aisles is not enough to prevent the mix of supply and return air. This mix results in air flow with a temperature that reduces the performance of the data center. If such air goes to the servers and it is warmer than expected the servers may stop working due to overheating. If mixed air goes to the cooling system and it is cooler than air coming out from the servers, heat exchange is reduced and then global efficiency is affected. Therefore it is necessary to provide a physical separation for the two airflows.this is achieved by using aisle containment, which is a simple and cost effective solution: it guarantees the servers are fed with the cold air and the cooling system is more efficient. The image above shows an excellent example of the advantages in terms of hot and cold flow separation obtained through aisle containment. 14 l 15
15 Cold Aisle configuration CRAC Roof Panel Baffle Floor Brush Seals 1 Climaveneta Aisle Containment The decision regarding usage of aisle containment needs to be analyzed on a project basis as it is affected by different factors such as: room dimensions, shape, heat load and density, cooling technology, redundancy provisions and more. In practice Climaveneta provides two methods for aisle containment: 1 Cold Aisle Containment, which provides tight control to the cold air feeding the servers. 2 Hot Aisle Containment, which confines hot discharge air from servers to one zone. Hot Aisle configuration CRAC Return Air Plenum Baffle Floor Brush Seals 2 Both the Hot and Cold Aisle Containment Systems provided by Climaveneta represent the perfect solution to: a Increase energy efficiency thanks to a complete separation of hot and cold air streams a Easily expand your data center if required by the layout of the environment a Perfectly integrate with different cooling technologies: - Inverter - In row units/ Enclosure units - Cooling door units a Optimise the available space a Adapt easily with or without raised floor design
16 density zone > 25 /rack This solution must accomodate the most critical heat load densities. Here hot-spots cannot be avoided without Climaveneta's localised air conditioners which are the best answer for dealing with hot spot management, providing extra local cooling exactly where it is needed. This system allows: a Maximisation of the internal capacity of the infrastructure a Elimination of hot spots a Minimum floorspace occupancy Climaveneta solution: CCD Cooling Door + CRC Rack Cooler CCD Climaveneta Cooling Door C C C a Additional cooling capacity thanks to chilled water coil available in both single & double circuit a Zero footprint a Adaptable for almost all racks a Top energy efficiency with electronically controlled fans modulated to actual needs a Dynamic air stratification management Tight control of the rack temperatures thanks to 8 independent sensors a Flexible connections From the top and from the bottom depending on the customer's choice and on raised floor availability a Ready to operate with latest generation chillers featuring magnetic levitation and free-cooling technologies. 16 l 17
17 CRC Climaveneta Rack Cooler a Large savings due to the limited air volume, scalability & modularity a Optimal solution for single rack a 100% redundancy A solution for each system CRCX: Direct Expansion a DC inverter compressor a New generation EC brushless fans a Capacity from 4,7 to 68,3 CRCC: Chilled Water a New generation EC brushless fans a 3-way modulating valve a Capacity from 16 to 74,7 CRCD: Dual Fluid a DC inverter compressor a 100% back-up a Capacity from 4,5 to 16,7 CRCF: Free Cooling a DC inverter compressor a New-generation EC brushless fans a Capacity from 4,6 to 17,5 a 60% of the year in the free cooling mode
18 Active redundancy Smart Thermal Energy Management A real active redundancy achieved through the adoption of innovative EC PUL fans together with Inverter DC brushless compressors (on direct expansion units) and an advanced algorithm for balancing the heat loads among the Accurate units (including those units that usually remain in stand-by). An innovative heat recovery system which allows Climaveneta to synergistically match both the cooling sources of the data center with the heating requirements inside the building, by moving the heat from the data center to other areas inside the building. 18 l 19
19 1 Magnetic levitation 2 Free cooling Unbeatable efficiency, silent operation and reliability. Climaveneta can deliver the experience of the world's latest technology in refrigeration: centrifugal compressors with magnetic levitation of electric rotor that reaches rpm. ESEER can reach the threshold of 15 of cooling capacity per every 1 of electric power. Perfectly in line with an eco-friendly strategy to deliver premium efficiency levels, Climaveneta adopts an advanced free cooling system to exploit the cooling potential of outdoor air to cool the data center. Available as direct and indirect free cooling this solution uses external air whenever the temperature is lower than room or water temperature. 3 Eco-friendly refrigerants 4 Adaptive set point Both R-410A and R-134a represent the most advanced choice in refrigerant technology: they clearly contribute to making the ICT GREEN since they comply with environmentally friendly policies and provide enhanced cooling efficiency. An advanced algorithm that instantaneously detects the real thermal load of the indoor units and then conveys this information to the outdoor chillers, strongly increasing their operation. - Dynamic variation of the chillers set point and water flow - Adoption of the free cooling mode (when possible) - Adoption of the ACTIVE REDUNDANCY system to better exploit stand by-chillers Low noise environment & energy saving Short loop air volume, 100% scalable and modular Additional full sensible cooling capacity 8 Aisle containment for highest efficiency 9 Electronic expansion valve 10 Electronic controlled fans 11 Electronic inverter driven compressor The Electronic Expansion Valve allows ultimate compressor working conditions in order to achieve the most efficient performances and to avoid dangerous downtimes. NEW GENERATION EC FANS The high efficiency EC fan reduces both noise levels as well as energy consumption, and assures a variable air flow at part loads. Operational costs are reduced by -15% if compared to traditional EC-Fans, and 25% if compared to plug fans. EC FANS ALSO IN THE REMOTE CONDENSERS The use of EC technology even on the remote condenser fans assures a further average reduction of noise levels by 10%, together with a strong energy consumption reduction by 45% when compared with traditional condensers with AC technology. Modulating the cooling capacity results in a major increase of energy efficiency: EER can rise from the typical 2,7 to 5,2 and more! Redundant unit will not be a dead investment as it will be on duty at extremely partialised loads thus granting cooling capacity with greater efficiency. i-accurate represents the ultimate MILESTONE in data center cooling, providing a FULLY ELECTRONICALLY CONTROLLED HPAC UNIT
20 HPAC range Climaveneta HPAC solutions for green data center include Close control air conditioners ACCURATE Direct expansion close control units AX Air cooled 4,9-95,4 AW Water cooled 5,2-99,3 AD Air cooled, dual fluid 23,7-98,8 AT Water cooled, dual fluid 24,9-101,9 AF Free Cooling 24,9-102 ACCURATE 2.0 Chilled water close control units AC Chilled water 6, AB Chilled water, double circuit 31,1-148,2 AC EXPANDED Chilled water, expanded version 49,5-234,5 AB EXPANDED Chilled water, double circuit, expanded version 36,6-153,2 i-accurate Direct expansion close control units with full DC Inverter technology i-ax Air cooled 4,3-151,8 i-aw Water cooled 4,7-159 i-ad Air cooled, dual fluid 6,7-124,4 i-at Water cooled, dual fluid 7,4-130,2 i-af Free cooling 7,4-130,2 20 l 21
21 a wide range of units both for perimeter and rack cooling from 4,5 to 235 Rack cooling solutions CCD Cooling Door CRC Rack Cooler Chilled water cooling door unit, from 26,6 to 39 Suitable for 600mm wide racks. Rack cooling solutions for high density rack management, from 10 to 75 CRCX: Direct expansion version CRCC: Chilled water version CRCD: Dual Fluid version CRCF: Free cooling version Remote condensers Dry coolers Remote condenser with axial fans BRE i-bre 13,4-187 Remote condenser with centrifugal fans BREC M1D-M4F_B 16,1-108 Dry Cooler with axial-type fan BDC i-bdc Climaveneta infrastructures Management and control systems In a policy of total communication, the Climaveneta HPAC range presents several interconnection solutions with the latest BMS systems. CV RACK High quality cabinets for protecting and housing servers CV AISLE CONTAINMENT Aisle Containment solution for high density applications Clima Guard Monitoring and supervision device Clima Center Supervision device for monitoring the perimeter ACCURATE air conditioners ClimaPRO Chiller plant control and optimisation system
22 FREE COOLING SYSTEM 20-Year experience free cooling chillers NECS-FC FX-FC r HFC R-410A Free Cooling chillers with scroll compressors, optimised for Data Center application. r HFC R-134a Free cooling chiller with screw compressors: robust, reliable and highly energy efficient NECS-FC Acoustic versions SCROLL B base version SL super-low noise version SCREW FX-FC Acoustic versions T Free cooling version SL-T Super low noise version with free cooling Management and control systems A full range of controllers, supervision and metering devices complete the Climaveneta High Density Data Center Cooling solutions. They allow for enhanced efficiency, synergies among all the components and the system reliability. Control Devices Data center manager Group and regulation device 22 l 23
23 Chillers with magnetic levitation compressors TECS VISION 2.0 Air and water cooled chiller with magnetic levitation compressors: the World's Most Advanced Technology in the refrigeration industry. CENTRIFUGAL Acoustic versions SL-CA Super Low noise version, Class A of efficiency XL-CA Extra Low noise version, Class A of efficiency SL-CA-E Super Low noise version, very high efficiency, Class A enhanced Monitoring devices Dedicated monitoring software for complex cooling plants including multiple redundancies. FWS3000 Measurement & Verification devices Essential for True PUE Metering DEMETRA
24 24 l 25 Experience is by far the best proof Sir Francis Bacon British Philosopher ( )
25 Vodafone Data Center Italy Investor: Application: Plant type: Vodafone Data Center HPAC System Cooling capacity: 510 Installed machines: 9x i-ax 50, 4x i-ax 29 Close Control air conditioner Project Vodafone was to undertake the refurbishment of the IT room, with the consequent energy performance upgrade of an important MSC situated in Southern Italy. In this context, new data center openings are rare, while restructuring and improvement of existing facilities is widespread. Challenge Data center refurbishments are very delicate from the engineering point of view and require great system flexibility in order to fit the needs of replacing and positioning the equipment while simultaneously allowing the site to function properly. Solution For the southern site the designer has selected 13 close control units, 3 of them are redundant, for a total cooling capacity of 400. The server room is cooled by 8 units all equipped with inverter compressors and divided into 4 under air delivery and 4 front air delivery units. Additionally, there are 5 under air supply units with direct free cooling plenum, installed in a technical corridor. The ability of Climaveneta, a European specialist in both HVAC and HPAC, ensured the prefect integration of the inverter technology with direct free cooling plenum with great advantages in terms of large energy savings.
26 More than 1000 projects all over the world Bouygues Telecom - Bobigny Several applications in France Investor: Bouygues Data Center Cooling capacity: 2630 Installed machines: 99 x i-ax Close Control Units of different sizes and models Nuovo Pignone 2013 Florence - Italy Data Center Plant type: HPAC System Cooling capacity: 400 Installed machines: 5x i-ax, 4x CRCX-I, 4x i-hcat E-tv Headquarters 2014 Cape Town - South Africa Office building Hydronic System Cooling capacity: 1870 Installed machines: 2x NECS-D/SL, 6x i-af, 1x MANAGER 3000 RTE - Réseau Transport Electricitè - SENP 2013 Montigny Le Bretonneux France Data Center Plant type: HPAC System Cooling capacity: 312 Installed machines: 12x CRCC Rack Cooler Units Telefonica Data Center 2014 Bogotà - Colombia Data Center Plant type: HPAC System Cooling capacity: 1240 Installed machines: 7x i-axu 130, 1x i-axu 29, 2x i-ax 150 Close Control Units Megacenter 2012 Medellin - Colombia Investor: Claro Data Center Plant type: Hydronic System Cooling capacity: 1330 Installed machines: 10x i-ax Close Control Units 26
27 Climaveneta solutions for data center cooling, with their unbeatable advantages in terms of efficiency, quality and reliability, are already the preferred choice in the most challenging and prestigious projects, all around the world and with many major brands. Cisco Systems Vimercate 2013 Milan - Italy Office Buildings Total cooling capacity: 4505 Total thermal capacity: 459 Installed units: 1x TECS2/SL-CA, 2x TECS-W, 1x ERACS2-WQ, 2x FOCS/SL, 1x FX-FC, 1xClimaPRO, 4xAC close control unit Novartis WSJ Basel - Switzerland Investor: Novartis Data Center Plant type: HPAC System Cooling capacity: 92 Installed machines: 12 x AC Close Control Units SINNET Internet Data Center 2013 Beijing - China Data Center Plant type: HPAC System Cooling capacity: 4370 Installed machines: 15x AC 90, 10x AC 221, 4x AX 90 Close Control Units SBB 2013 Zurich - Switzerland Investor: SBB Application: Data Center Plant type: HPAC System Cooling capacity: 1588 Installed machines: 46x AC ( ) Close Control Units Nya Karolinska Hospital 2013 Stockholm - Sweden Healthcare / Hospitals Plant type: HPAC System Cooling capacity: 270 Installed machines: 11x AT Close Control Units Range International Information Group Data Center Langsfang - China Data Center Total cooling capacity: Installed units: 24x AC 221, 18x AC 25, 5x air cooled chillers Data Center 27
28 CV-DATA CENTER_ _eng_00
29 Close control air conditioning Direct Expansion Close Control units with Inverter technology, from 4 to 160 New range 50/60Hz
30 Key Features The most efficient and reliable solution for high precision high conditioning is
31 From Climaveneta s experience i-accurate high precision air conditioners, available both as direct expansion and free-cooling versions are the most efficient and reliable solution on the market. Precise temperature and humidity control Complex IT centres require to keep temperature and humidity within very strict parameters. This is particularly difficult due to extremely variable thermal loads, that require very high cooling capacity at full load, in order to avoid to compromise the correct operation of the IT machines when they are more necessary. The massive use of the new INVERTER technology on HPAC units for technical rooms, makes possible to keep ambient temperature and humidity constant even with very strong loads variations, preventing dangerous temperature variations, almost unavoidable with traditional ON/OFF compressor driven units. High efficiency at partial loads Cooling IT load Data Center energy consumption Most energy consumed by modern data centres is due to ambient cooling. In more and more cases the cost due to cooling are higher than those caused by data exchange. In systems characterized by H24 operations, also the slightest compromise concerning efficiency has dramatic implications in the operating costs of the whole data centre. Hence it is crucial that the air conditioning system of the centre works effectively also at part loads, which are the most frequent operating condition, in order to reduce the overall operating cost. i-accurate strong point is exactly efficiency at part loads. Thanks to the adoption of inverter DC brushless compressors up to 30 and inverter AC for lager capacities, these units can reduce by 50% consumptions at part load, if compared to a traditional ON/OFF compressor. This is made possible also thanks to the advantages of variable air flow enabled by last generation EC fans. Versatility The many types of structures used as technical areas and the need to optimize their dimensions, require flexible solutions, that can adapt to any room, always granting perfect control and highest efficiency. This means complete flexibility, both as concerns capacities (from 6 to 150 Inverter), as well as configuration and system with 5 different cooling solutions, including FREECOOLING with R410A.
32 Technological choices Efficiency, versatility and reliability. Inverter technology The INVERTER technology on the compressor modulates the power capacity according to the real requirements of the server. This enables to optimize the performance of the compressor at part load, increasing rapidly its efficiency. Annual power consumption 100% In case of low Hz Operation 55% Max 70% 30% The latest generation i-accurate adopts this technology as standard in all its models, with several benefits in terms of: Modulation of the power capacity according to the load requirements No in-rush starting current Energy savings up to 50% compared to the traditional on/off technology. Constant speed AC Inverter DC Inverter Intelligent Control i-accurate, has an intelligent regulation, that allows the complete control of all the unit s parameters in any condition. i-accurate control is completely open and can be set according to the specific needs of the customer, either on site or in advance when the unit is produced. 2
33 These are the strong points that make i-accurate a point of reference in high precision air conditioning. Advantages that come from distinctive technological choices in every aspect of this units. New generation EC fans Plug-in (AC) -10% EC (DC) -15% EC-New generation (DC) -25% The high efficiency EC fan reduces both noise levels as well as energy consumption, and assures a variable air flow at part loads, optimizing the operating costs of the unit. Main features Further noise level reduction 4-5 db(a) Further absorbed power reduction by 15% An advanced logic simultaneously manages fans and inverter compressors modulation, with savings at part loads up to 30%. EC fans also in the remote condensers The use of EC technology even on the remote condenser fan assures a further average reduction of noise levels by 10%, together with a strong reduction of energy consumption by 45% compared with traditional condensers with AC technology. Electronic thermostatic valve The new generation i-accurate comes with electronic expansion valves as standard. These valves ensure optimal operation of the frigorific cycle in every ambient condition. Main features: High quality of control and wider modulation capacity Maintenance of the operating stability Accurate adjustment to the swings of load 3
34 Total versatitlity All-round flexibility as a service offered for any type of system. TYPES OF COOLING I-AXO/I-AXU DIRECT EXPANSION AIR COOLED, WITH INVERTER COMPRESSOR Refrigerant for heat transfer is used in these direct expansion units. The air in the room is therefore treated in the evaporating coil containing the refrigerant. The condensation heat is dispersed to a fresh air condenser that with speed control for condensing control, optimise the condensation pressure even in adverse temperature conditions. Units provided per standard with EC inverter fans who represents today the best solution for energy saving. I-AWO/I-AWU DIRECT EXPANSION WATER COOLED, WITH INVERTER COMPRESSOR Refrigerant for heat transfer is used in these direct expansion units. The air in the room is therefore treated in the evaporating coil containing the refrigerant. The condensation heat is dispersed in an internal platetype exchanger connected in turn to a water circuit. The water of condensation may come from a well, local water mains or closed circuits such as cooling towers or dry coolers. Units provided per standard with EC inverter fans who represents today the best solution for energy saving. NB: for negative External T values antifreeze fluids must be used to protect the system I-ADO/I-ADU DUAL FLUID INVERTER These units are per standard provided with a dual cooling systems who never work simultaneously. A PRIMARY circuit, made by a chilled water circuit (CW) generally connected to an external chiller, plus a SECONDARY circuit in direct expansion (DX) air cooled, who is considered as BACK-UP. Such units are particulary indicated anywhere RELIABILITY, SAFETY and REDUNDANCY are required. Units provided per standard with EC inverter fans who represents today the best solution for energy saving. AIRFLOW CONFIGURATION OVER OVER unit with front intake and delivery plenum OVER unit with front intake and top delivery OVER unit with underfloor intake and top delivery OVER unit with rear intake and top delivery The versions called OVER with air outflow from the top generally have the air intake at the front, or bottom * of the unit, according to customer choice, and the outflow from the top is along ducts behind suspended ceilings or front delivery plenums. * For back air intake, the installation of a base with grid is necessary. 4
35 i-accurate comes with capacities from 6 to 150 in the direct expansion version with air cooling (i-axo / i-axu) and water cooling (i-awo / i-awu) and capacities from 11 to 130 in version dual fluid (i-ado / i-adu and i-ato / i-atu) and free cooling (i-afo / i-afu). I-ATO/I-ATU DUAL FLUID INVERTER These units are per standard provided with a dual cooling systems who never work simultaneously. A PRIMARY circuit, made by a chilled water circuit (CW) generally connected to an external chiller, plus a SECONDARY circuit in direct expansion (DX) water cooled, who is considered as BACK-UP. Such units are particulary indicated anywhere RELIABILITY, SAFETY and REDUNDANCY are required. Units provided per standard with EC inverter fans who represents today the best solution for energy saving. I-AFO/I-AFU FREE FREE COOLING INVERTER These units are per standard provided with a dual cooling systems who are often working simulateusly along the year. A PRIMARY direct expansion circuit (DX) plus a SECONDARY chilled water circuit (CW) generally connected to an external dry cooler who is considered as "support" to the primary one. Such units are particulary indicated anywhere EFFICIENCY & ENERGY SAVING are required. Units provided per standard with EC inverter fans who represents today the best solution for energy saving. UNDER The versions called UNDER with air outflow under the floor have the air intake on the top of the unit taking air directly from the environment or through intake ducts or plenums. UNDER unit with top intake and front delivery plenum UNDER unit with top intake and undefloor delivery 5
36 6 The range
37 Air cooled direct expansion unit, with R410A refrigerant and DC inverter driven compressor. From 4 to 151. Model Frame No. Circuits/ No. Compressors Refrigerant Nominal Air flow mc/h Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power VENTILATION No. EC radial fans No. HP EC radial fans Sound pressure level (5) HUMIDIFIER Capacity ELECTRICAL HEATERS Steps Heating Capacity DIMENSIONS Length mm Depth mm Height mm COUPLING WITH OUTDOOR UNIT i-bre Remote condenser F2 F3 F4 F5 F6 F7 1/1 1/1 1/1 1/1 1/1 2/2 2/2 2/3 2/3 R410A R410A R410A R410A R410A R410A R410A R410A R410A /1/50 400/3N/50 11,1 16,60 19,32 28,07 55,00 70,20 86,50 135,9 151,8 10,6 16,60 19,32 28,07 51,10 68,10 85,50 116,2 124,1 0,95 1,00 1,00 1,00 0,93 0,97 0,99 0,86 0,82 2,54 4,09 4,44 7,14 13,20 15,80 20,30 30,80 35,00 0,35 0,84 1,35 1,80 3,20 4,5 6, ,27 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90 4,34 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70 4,34 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 0,88 1,24 1,33 1,96 4,31 4,40 4,30 4,60 4,60 460/3/60-380/3/60 n.a. 16,60 19,32 28,07 55,00 71,49 84,85 139,03 147,74 n.a. 16,60 19,32 28,07 51,10 68,74 83,82 117,59 121,85 n.a. 1,00 1,00 1,00 0,93 0,96 0,99 0,85 0,82 n.a. 4,09 4,44 7,14 13,20 16,29 19,83 31,94 33,97 n.a. 0,84 1,35 1,80 3,20 4,5 6,1 - - n.a. 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90 n.a. 6,27 7,24 10,62 25,39 23,58 24,28 24,7 24,7 n.a. 6,27 7,24 10,62 25,39 23,58 24,28 24,7 24,7 n.a. 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 n.a. 1,24 1,33 1,96 4,31 4,36 4,34 4,55 4, m 027m 044m 044m 065m 100b 116b 190b 190b NOTES 1) Indoor conditions: 24 C-50% Condensing temp. 45 C - ESP 20Pa 5) Measured at 1,5m height, 2m in front of the unit in free field 7
38 The range Water cooled direct expansion unit, with R410A refrigerant and DC inverter driven compressor. From 5 to 159. COOLING SCROLL r HFC R-410A Model Frame No. Circuits/ No. Compressors Refrigerant Nominal Air flow mc/h Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power VENTILATION No. EC radial fans No. HP EC radial fans Sound pressure level (5) db(a) HUMIDIFIER Capacity kg/h ELECTRICAL HEATERS Steps Heating Capacity DIMENSIONS Length mm Depth mm Height mm COUPLING WITH OUTDOOR UNIT i-bdc Remote Condenser F2 F3 F4 F5 F6 F7 1/1 1/1 1/1 1/1 1/1 2/2 2/2 2/3 2/3 R410A R410A R410A R410A R410A R410A R410A R410A R410A /1/50 400/3N/50 11,7 17,4 20,46 29,3 56,72 73,90 93,30 142,5 159,1 10, ,41 28,6 51,52 70,20 90,50 118,9 127,6 0,93 0,98 1,00 0,98 0,91 0,95 0,97 0,83 0,80 2,12 3,68 3,86 6,38 12,08 13,60 18,60 27,60 31,70 0,35 0,84 1,35 1,80 3,20 4,5 6, ,27 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90 4,78 7,27 7,88 12,33 27,30 25,30 27,90 27,50 27,50 4,78 7,27 7,88 12,33 27,30 25,30 27,90 26,70 26,70 1,00 1,00 1,00 1,00 1,00 1,00 1,00 0,97 0,97 0,61 1,24 1,11 1,96 3,20 3,30 3,00 3,30 3,30 460/3/60-380/3/60 n.a. 17,4 20,46 29,3 56,72 75,02 92,37 145,18 154,4 n.a ,41 28,6 51,52 70,69 89,41 120,14 125,87 n.a. 0,98 1,00 0,98 0,91 0,94 0,97 0,83 0,82 n.a. 3,68 3,86 6,38 12,08 14,16 17,71 28,78 30,92 n.a. 0,84 1,35 1,80 3,20 4,5 6,1 - - n.a. 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90 n.a. 7,27 7,88 12,32 27,28 25,07 27,91 27,47 27,46 n.a. 7,27 7,88 12,32 27,28 25,07 27,91 26,67 26,65 n.a. 1,00 1,00 1,00 1,00 1,00 1,00 0,97 0,97 n.a. 0,96 1,11 1,43 3,20 3,45 2,98 3,26 3, m 030m 030m 030m 039m 062m 092m 123m 190m NOTES 1) Indoor conditions: 24 C-50% Water C - ESP 20Pa 5) Measured at 1,5m height, 2m in front of the unit in free field 8
39 Water cooled unit with free cooling, R410A refrigerant and DC inverter driven compressor. From 7 to 130. Model Frame No. Circuits/ No. Compressors Refrigerant Nominal Air flow mc/h Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power PERFORMANCE IN FREE-COOLING Total cooling capacity (2) Sensible cooling capacity (2) SHR Pressure drop with FC operation kpa VENTILATION No. EC radial fans No. HP EC radial fans Sound pressure level (5) db(a) HUMIDIFIER Capacity kg/h ELECTRICAL HEATERS Steps Heating Capacity DIMENSIONS Length mm Depth mm Height mm COUPLING WITH OUTDOOR UNIT i-bdc Remote Condenser F3 F4 F5 F6 F7 1/1 1/1 1/1 2/2 2/2 2/3 R410A R410A R410A R410A R410A R410A /3N/50 19,37 28,58 55,10 72,90 94,50 130,2 19,37 28,35 51,00 69,20 87,10 111,1 1,00 0,99 0,93 0,95 0,92 0,85 4,01 6,15 12,20 13,80 19,10 27,40 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,75 12,42 24,60 22,70 24,40 26,10 7,75 12,42 24,60 22,70 22,50 25,60 1,00 1,00 1,00 1,00 0,92 0,98 1,00 1,49 3,30 3,40 3,40 3,30 460/3/60-380/3/60 19,37 28,58 55,10 74,01 93,51 33,38 19,37 28,35 51,00 69,69 86,24 113,09 1,00 0,99 0,93 0,94 0,92 0,85 4,01 6,15 12,20 14,37 18,34 28,51 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,75 12,4 24,63 22,7 24,51 26,1 7,75 12,4 24,63 19,5 22,52 25,6 1,00 1,00 1,00 0,86 0,92 0,98 1,00 1,49 3,29 3,38 3,31 3,30 20,02 25,1 43,8 58,1 78,26 104,88 19,58 25,1 43,8 58,1 78,26 94,21 0,97 1,00 1,00 1,00 1,00 0, m 039m 062m 092m 123m 190m NOTES 1) Indoor conditions: 24 C-50%, Water C - ESP 20Pa 2) Water IN 10 C water flow as DX mode - ESP 20Pa 5) Measured at 1,5m height in front of the unit in free field 9
40 The range Air cooled direct expansion dual fluid unit, with R410A refrigerant and DC inverter driven compressor. From 7 to 124. Model Frame No. Circuits/ No. Compressors Refrigerant Nominal Air flow mc/h Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power PERFORMANCE (CW) Total cooling capacity (2) Sensible cooling capacity (2) SHR Total Pressure drop kpa VENTILATION No. EC radial fans No. HP EC radial fans Sound pressure level (5) db(a) HUMIDIFIER Capacity kg/h ELECTRICAL HEATERS Steps Heating Capacity DIMENSIONS Length mm Depth mm Height mm COUPLING WITH OUTDOOR UNIT i-bdc Remote Condenser F3 F4 F5 F6 F7 1/1 1/1 1/1 2/2 2/2 2/3 R410A R410A R410A R410A R410A R410A /3N/50 18,89 27,50 53,24 69,10 91,4 124,4 18,89 27,50 50,21 67,40 83,0 108,7 1,00 1,00 0,94 0,98 0,91 0,87 4,26 6,83 13,42 16,10 20,90 30,80 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,2 11,31 22,7 20,90 22,50 23,90 7,2 11,31 22,7 18,80 21,70 23,90 1,00 1,00 1,00 0,90 0,96 1,00 1,28 2,05 4,47 4,52 4,43 4,58 460/3/60-380/3/60 18,89 27,50 53,24 70,34 89,54 127,07 18,89 27,50 50,21 68,15 85,03 110,13 1,00 1,00 0,94 0,97 0,95 0,87 4,26 6,83 13,42 16,64 20,46 31,81 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,2 11,31 22,7 20,85 22,5 23,91 7,2 11,31 22,7 18,78 21,64 23,9 1,00 1,00 1,00 0,90 0,96 1,00 1,28 2,05 4,47 4,52 4,43 4,58 24,3 29,5 51,4 67,6 91,0 125,7 20,1 27,6 47,5 64,5 85,0 98,5 0,82 0,94 0,92 0,95 0,93 0, m 044m 065m 100b 116b 190b 10 NOTES 1) Indoor conditions: 24 C-50%, Condensing temp. 45 C - ESP 20Pa 2) Indoor conditions: 24 C-50%, Water 7-12 C - ESP 20Pa 5) Measured at 1,5m height in front of the unit in free field
41 Water cooled direct expansion dual fluid unit, with R410A refrigerant and DC inverter driven compressor. From 7 to 130. COOLING SCROLL r HFC R-410A Model Frame No. Circuits/ No. Compressors Refrigerant Nominal Air flow mc/h Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power Power supply V/Ph/Hz PERFORMANCE High speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power EC radial fans power abs. HP EC radial fans power abs. Low speed Total cooling capacity (1) Sensible cooling capacity (1) SHR (1) Compressors absorbed power PERFORMANCE (CW) Total cooling capacity (2) Sensible cooling capacity (2) SHR Total Pressure drop kpa VENTILATION No. EC radial fans No. HP EC radial fans Sound pressure level (5) db(a) HUMIDIFIER Capacity kg/h ELECTRICAL HEATERS Steps Heating Capacity DIMENSIONS Length mm Depth mm Height mm COUPLING WITH OUTDOOR UNIT i-bdc Remote Condenser F3 F4 F5 F6 F7 1/1 1/1 1/1 2/2 2/2 2/3 R410A R410A R410A R410A R410A R410A /3N/50 19,37 28,58 55,10 72,90 94,50 130,2 19,37 28,35 51,00 69,20 87,10 111,1 1,00 0,99 0,93 0,95 0,92 0,85 4,01 6,15 12,20 13,80 19,10 27,40 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,75 12,42 24,60 22,70 24,40 26,10 7,75 12,42 24,60 22,70 22,50 25,60 1,00 1,00 1,00 1,00 0,92 0,98 1,00 1,49 3,30 3,40 3,40 3,30 460/3/60-380/3/60 19,37 28,58 55,10 74,01 93,5 133,38 19,37 28,35 51,00 69,69 86,24 113,09 1,00 0,99 0,93 0,94 0,92 0,85 4,01 6,15 12,20 14,37 18,34 28,51 1,35 1,80 3,20 4,5 6,1-0,89 1,51 3,13 5,11 6,72 6,90 7,75 12,4 24,63 22,7 24,51 26,1 7,75 12,4 24,63 19,5 22,52 25,6 1,00 1,00 1,00 0,86 0,92 0,98 1,00 1,49 3,29 3,38 3,31 3,30 24,3 29,5 51,4 67,6 91,0 125,7 20,1 27,6 47,5 64,5 85,0 98,5 0,82 0,94 0,92 0,95 0,93 0, m 039m 062m 092m 123m 190m NOTES 1) Indoor conditions: 24 C-50%, Water C - ESP 20Pa 2) Indoor conditions: 24 C-50%, Water 7-12 C - ESP 20Pa 5) Measured at 1,5m height in front of the unit in free field 11
42 "By far the best proof is experience"sir Francis Bacon British Philosopher ( ) IBM Mompellier Head offices Over 24 units Accurate in different installations, over 400 total capacity, provided by: DX air cooled units, Accurate AXU 50, Accurate AXU 88, Accurate AXU 40, Accurate AXU 55, Accurate AXO 7, Accurate AXO 10 Textil Association India Lab India 2 Accurate units i-ax 50 Eads - Casa Spain DX air cooled units, Accurate DXO 18 Buygues Telecom France DX air cooled units, Accurate ACU 25 EC, Accurate ACU 70 EC, Accurate ACU 70 EC, Accurate ACU 90 EC, Accurate ADU 20, Accurate ADU 77 Alphabank Romania 8 Dual fluid units, Accurate ATO 77BE, Accurate ATO 60BE Gazprom Russia DX air cooled units, Accurate DLU 077BE, Accurate DLU 039ME
43 All around the world, in the most important data centres, and in all projects where efficiency, quality and reliability are a must, i-accurate high precision air conditioners are the best guarantee Telefonica Cile Chile Over 20 DX air cooled units among which, Accurate AXO 55, Accurate AXU 60, Accurate AXO 20, Accurate AXO 07, Accurate AXU 50 Consum Logistics Platform Spain 4 i-ax 018 units, 2 ERACS2-Q units, 1 rooftop unit Baltic Arena Poland 4 Accurate units AX 029, 1 BRE 044m CNES Centre National d'etudes Spatiales France 12 CRCC-I 0036 units Verwaltung der AOK Deutschland Berlin - Germany DX water cooled units, Accurate AWU 26 Caffemacherreihe Nr. 16 Offices Hamburg - Germany DX water cooled units, Accurate AFU 50
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