GEA Ultra-Denco. GEA Heat Exchangers / HVAC Systems. Close Climate Control for IT Environments. Reliability with low power consumpstion

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1 Close Climate Control for IT Environments GEA Ultra-Denco Reliability with low power consumpstion GEA Heat Exchangers / HVAC Systems

2 Numerical Flow simulation Velocity / Pressure field / Turbulence high low Intensive research and computer aided design by our team of experts at GEA has resulted in wide ranging improvements to our products. Sophisticated analysis using Computational Fluid Dynamics (CFD) simulation has been employed to give optimal airflow paths and reduced pressure drops. Return air is carefully guided over the cooling coil using vanes to ensure even distribution and maximum heat exchange. Positioning of internal components such as fans, coil, valves and pipework has been optimised.

3 Numerical Flow simulation high low Velocity field at the heat exchanger Numerical Flow simulation 0.5 s 0 s Evenly distributed airflow over the heat exchanger as a result of air-guide vanes and condensate drains

4 GEA Ultra-Denco Technical data C-Version Model sizes Cooling 1) Total cooling duty kw Nett sensible duty kw Energy efficiency ratio (EER) Sensible heat ratio (SHR) Fans Air flow m³/s m³/h 10,080 20,160 30,240 Ext. static Pa Sound pressure level 2) Downflow db(a) Electrical data 3) Power Input kw Humidifier Capacity Humidifier kg/h Power Input kw Heater Electrical Heating kw Cold-water data 4) Water flow m³/h Total Unit Pressure Drop kpa Weights and Dimensions (incl. Fan section) Height mm 1,960 (2,510) 1,960 (2,510) 1,960 (2,510) Width mm 1,335 1,995 2,650 Depth mm Weights kg 350 (420) 600 (700) 800 (1,000) 1) Return-air conditions: 24 C / 45 % relative humidity 2) Sound pressure level at distance of 2m, under free-field conditions, over a raised floor 3) Data for Coolin only operation mode 4) Water: 7/13 C / 0 % glycol We reserve the right to make technical modifications without prior notice, in the interest of further technological development.

5 New fan configuration brings optimised operating costs Up to 61 % reduction in power consumption Benefits from new unit configuration and component optimisation Repositioning the fan into the raised floor reduces static regain losses and save up to 61 % of power consumption when compared to a conventional chilled water system. Larger filter surface areas with reduced pressure drops permit longer maintenance intervals. A large, high performance 6-row cooling coil, manufactured by GEA, has been optimised by our engineers to give minimal pressure drops. The design gives the choice of very high duties at standard water temperatures or even greater efficiencies at elevated water temperatures. All components within the water circuit, such as cooling coil, valves and pipework have been specifically designed and selected for the minimum possible waterside pressure drops. Because the fans in this configuration only pull air over the unit the main cabinet is not under pressure. This leads to increased air tightness and reduced possibility of air leakage. Service access exclusively from the front of the unit ensures simple maintenance procedures. Saving potential by optimised operation costs Power consumption (kwh/a) 100,000 90,000 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 Standard unit Ultra Denco Power consumption for fans Additional refrigeration requirement Cost savings by GEA Ultra-Denco (Operation Costs in ) Current Additional Year Std. 1) duty 2) Ultra-Denco 1 9,093 1,643 4, ,186 3,286 8, ,279 4,928 12, ,372 6,571 16, ,464 8,214 20, ,557 9,857 24, ,650 11,500 29, ,743 13,142 33, ,836 14,785 37, ,929 16,428 41, ,357 41,628 Savings over conventional unit: 61.23% 1) Fan duty 2) For cooling, as a result of higher fan power (EER CHILLER : 3,0)

6 Filter High-quality EU4 Z-Line filter Differential pressure switch in the microprocessor control system provides an alarm when filter change is necessary. Heat exchanger Six-tube-row high-performance heat exchanger developed by GEA Designed for optimal pressure drops on the air and water sides Re-heater Electrical heating elements with stainless-steel fins (clad with Incoloy ) Low surface temperature black heat operation Fans EC plug fans made of synthetic material with backward curved, 3-dimensional blades in separate fan section Minimisation of air-redirection losses Energy-saving operation

7 Microprocessor control C3-05 Controller as standard T3-04 control as sensor touch monitor, free for options such as programming for the automatic pressurisation system (APS) Control Valve Continuously modulating chilled water valve Selection between 2 and 3 port versions Humidifier Proportional electrode steam humidifier Microprocessor control with alarm and diagnosis unit

8 Greater operating cost savings using integrated free cooling Over 30 % reduction in power consumption Comparison of power consumption between an air-cooled chiller and a unit with a free-cooling function Power consumption (kwh/a) Outdoor-temperature plot throughout the year (h/ C) GLAC 1204 BD2 GLFC 1204 BD2 These data are based on the following conditions: Cooling duty: 350 kw; water temperature: inlet = 15 C / outlet = 10 C; operation throughout the entire year; location: Munich, Germany Why choose a GEA Chiller with free cooling? Whenever cooling is required year round chillers with a free cooling capability are the ideal solution. With the ever increasing load demands in buildings, even in comfort applications, a free cooling chiller can be a most effective choice. Depending on the local climate conditions, the use of a free cooling, as opposed to a standard chiller can lead to very short payback times. Chillers with free-cooling function Cooling duty from 30 to 380 kw for systems with up to 4 scroll compressors, and from 300 to 1,250 kw for machines with screw compressors. A master/slave control system from GEA enables communications among up to 5 units, which allows retrofitting to achieve greater required cooling duties. The higher the water temperatures the more energy efficient the operation of the chiller. Using higher water temperatures also allows the changeover to free cooling to be made earlier and remove the need for compressor operation. Common flow and return water temperatures for chillers are 6 C and 12 C. But if these temperatures are increased to 10 C and 15 C then the chiller will operate much more efficiently than at the lower temperatures. In addition when using higher water temperatures, because free cooling will already have started at an outdoor temperature of 14 C and not at 11 C as is the case with standard chiller operation, additional energy saving benefits can be enjoyed.

9 Climate control: automatic pressurisation system (APS) Fan speed = % 20 Pa (constant) 20 Pa (constant) Constant pressure in the pressurised floor plenum, up to the performance limit of the installed equipment Prevention of heat accumulation and hotspots Great energy-saving potential EC fans always featured with APS Options and accessories Support Frames Ceiling return ducts Horizontal air intake Electric Heating Filter Grade EU4 / G4 Chilled Water connection kit Building Management System Interfaces LON BACNET MODBUS ETHERNET Etc. Audible Alarm Water Detection System Smoke Detection System Condensate pump Filter Alarm Many more features GEA Lplus software Designed to your requirements Plan quickly and reliably GEA Close Control HVAC systems have the advantage that all these products can be designed in accordance with individual requirements. GEA Lplus design software helps you here to implement your desired system at the turn of a hand. Lplus provides configuration suggestions. Lplus instantly calculates and outputs system subdivisions, arrangement of the modules, and dimensions and weights. You can t really plan faster than that, and at the same time more reliably! This means that you gain valuable time for other tasks. With its integrated energy-calculation tool, Lplus software determines operational costs. It also calculates forecast lifecycle costs simply and conveniently. Image brochure Application brochures Product brochures Data & Facts and operation manuals (available only as PDF) You are on this level of our documentation structure. You can order printed copies at no charge from the top 3 levels, from info@gea-airtreatment.com. You can download all brochures as PDF files from the following Internet site:

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