1. Saving up to 60% of Energy With The Precision Cooling SmartAisle ™ Configuration

2. 2 AgendaAgenda What’s Containment? How to get Energy Efficiency? Focus on Emerson Network Power solution Energy saving: In the Row cooling Floor Mount Direct Expansion Chilled Water System

3. 3 What’s Containment? HOTCOLD It means to contain different zones using mechanical and real barriers What does “Containment” mean? What can be “Contained”? Hot Aisle Cold Aisle Hot & Cold Aisles

4. 4 Why Containment? Air always goes the easiest way! Without containment there is a fast recirculation of warm air from the rear side of racks to their front side

5. 5 Traditional Air Cooling Troubles 10°- 15°C

6. 6 The First Step: Containment 20°- 26°C

7. 7 Containment: How To Provide Energy Efficiency? Q QiQi QiQi QiQi QiQi QiQi QiQi High energy efficient solutions have to control the airflow in order to have the following: S Qi = Q Q QiQi QiQi QiQi QiQi QiQi QiQi How to control the airflow? PRESSURE control in the raised floor PRESSURE control at rack level

8. 8 Why Not Just Containment? Servers are not getting enough air Risk of hot air intrusion into cold aisle Over-blowing server fans Low efficiency Reducing server fans lifetime

9. 9 Containment: Pressure Control In The Raised Floor Airflow is controlled to meet servers’ required flow Airflow is controlled using pressure sensor and variable speed fans are needed What about this solution? High Availability In case of Unit failure In case of gaps in access floor tiles Lower Energy Efficiency Higher pressure in the floor void Overpressure in Cold Aisle Emerson Network Power can offer this solution too….anyway we prefer to suggest a more EFFICIENT solution, having the control in front of servers! See next slides

10. 10 Pressure Control At Rack Level The space inside the containment can be compared to a glass of water. We have to grant it is always full of water: not too little, not too much! Patented Solution

11. 11 SmartAisle ™ Control Logic Max 3xT&H sensors for temperature and humidity reading Each value, Temperature and Humidity, can independently be enabled for controlling Sensors are located in the calibrated holes The average or the highest value is calculated in accordance with the number of enabled sensors

12. 12 SmartAisle ™ VS Competitors: Airflow Control Simple Containment with Pressure Control SmartAisle ™ Be The Critical Difference !! Too Low AirflowUnit Airflow = Server Airflow No risks for Hot Spot, Hot Air recirculation Too High AirflowUnit Airflow matches Server Airflow No waste of any single Watt for moving useless air Common Cascade Smart Cascade: always works with EC Fan at minimum speed Save a lot of energy having EC Fans in their best working point

13. 13 SmartAisle ™ VS Competitors: Pressure Control Simple Containment with Pressure Control SmartAisle ™ Be The Critical Difference !! Usually works with floor pressure >20-25 Pa Minimized raised floor pressure (<15Pa) No waste of any single Watt moving useless air Pressure in the cold aisle difficult/impossible to be maintained  usually using overpressure No or Minimal overpressure in the hot aisle (<5Pa) Servers Fans life is not impacted (no overpressure for server fans)

14. 14 SmartAisle ™ Control VS Competitors: Reliability Simple Containment with Pressure Control SmartAisle ™ Be The Critical Difference !! Control temperature and humidity in the unit or near to it Control Temperature and Humidity in the Aisle Our Precision cooling units take care of customer’s servers Additional equipment (points of failure) like tubes and baffles plates in the raised floor Simple architecture: high reliability and redundancy. Up to 3 remote sensors per one unit to be connected Simpler means easier If Master fails each Unit works as standalone / basic level of Networking (depends on manufacturer) Unique solution: Floating Master The cooling system will always take care of IT equipment

15. 15 SmartAisle ™ : Best Efficiency for Aisle Contaiment Pressure control results on higher fan speed, more air losses and this impacts on System Efficiency SmartAisle provides the BEST EFFICIENCY in case of Aisle Containment White Paper Showing the Difference between Smart Aisle and Pressure Control

16. 16 Precision Cooling For SmartAisle ™ Liebert ® HPM Precision Cooling units From 13 to 80 kW cooling capacity` Up to 3 remote sensors per unit EC fan and Digital Scroll technology Liebert ® CRV In the row data center cooling units From 10 to 40kW cooling capacity` Available in DX and CW version EC fan and Digital Scroll technology Up to 10 remote sensors per unit Sophisticated control logic 600 or 300 mm frame width Cooling at the heat source Liebert ® HPC and Liebert ® PCW Data Center cooling Chillers From 40 to 1600 kW cooling capacity Maximized free-cooling effect with new Liebert ® HPC – max fluid temperature up to 26ºC Liebert ® PCW /HPM EC fan technology Ideally suited for SmartAisle Premium energy efficiency In the Row (DX/CW) Perimetral Direct Expansion Perimetral Chilled Water

17. 17 SmartAisle ™ : In The Row Cooling Case Study 1: 90 kW Thermal Load Increase in temperature means increase in capacity Compressor works at a lower modulation Fans work at a lower speed Lower consumption of fans and compressor Containment maximizes air utilization In the Row Direct Expansion Chilled Water 30%EnergySaving 8.188 € YearlySaving (Saving calculated in comparison with Traditional In the Row solution without Containment and Emerson Network Power Control, load: 90kW, city Frankfurt)

18. 18 In the Row Direct Expansion Chilled Water SmartAisle ™ : Modulating DX Cooling Case Study 2: 300 kW Thermal Load Integrates the benefits of containment with the capabilities of the control for optimized cooling The control matches cooling capacity with heat load Variable speed fans Variable capacity compressors Containment maximizes air utilization 60%EnergySaving 79.322 € YearlySaving (Saving calculated in comparison to Traditional DX Floor Mount AC fan solution without Containment and Emerson Network Power Control, load: 300kW, city Frankfurt)

19. 19 How Do We Achieve Savings Relation between pressure drop and airflow is exponential Any saving on airflow side will significantly decrease the fans power input Cooling capacity increases with increase in evaporating temperature Higher return air temperature means higher evaporating temperature = increased cooling capacity In the Row Direct Expansion Chilled Water

20. 20 Reduce Operating Costs: Case Study In the Row Direct Expansion Chilled Water

21. 21 Getting The Best Annual Efficiency SmartAisle ™ Solution: Maximizes heat exchange Reduces the airflow exactly in line with server needs 7 x (D5DUA+2xHCR51) All running FRANKFURT SolutionInves™ent Cost [€] Energy Cost [€/year] Saving [€/year] Pay Back Time [years] TCO in 2 years [€/kW] STD Floor Mount AC fan93.201125.2661146 SmartAisle ™ + Digital HPM143.47845.94479.3220,63785 In the Row Direct Expansion Chilled Water SmartAisle™ MORE THEN 60% of ENERGY SAVING with the servers fully under control !!!

22. 22 …What’s The Message? With Smart Solution + Digital Scroll HPM you can save at least 793.000 kW/h year What does this mean? 108 m 25 m 3800 m 2 of Fotovoltaic Panels required to generate the Equivalent Power saved with Digital Aircooled 10% more than entire Colosseo surface !! In the Row Direct Expansion Chilled Water

23. 23 …What’s The Message? With Smart Solution + Digital Scroll HPM you can save 372.710 Kg CO2 year What does this mean? An average of 12.000 km is the average mileage per year of an European person FIAT 500 generates 119g of CO 2 for 1 km. Savings introduced by SmartAisle ™ + Liebert ® HPM Digital, cooling down 300kW in Frankfurt is the equivalent of the CO 2 generated by 261 FIAT 500 In the Row Direct Expansion Chilled Water

24. 24 SmartAisle ™ : Chilled Water Cooling Case Study 3: 460 kW Thermal Load Integrates the benefits of containment with the capabilities of the control for optimized cooling The control matches cooling capacity with heat load Containment maximizes air utilization Increasing the return air temperature to room cooling units, which consequently will increase also fluid temperature. Enlarging the delta T between air and fluid it’s possible to lower the fan speed, as the cooling capacity provided by room cooling unit is much higher. Traditional Approach SmartAisle ™ + PCW & Liebert ® Freecooling Chiller (Saving calculated in comparison to Traditional CW Floor Mount AC fan solution without Containment, Emerson Network Power Control and Freecooling Chiller) In the Row Direct Expansion Chilled Water 63% on CRAC Unit 67% on Freecooling Chiller Energy Saving 30.740 € YearlySaving

25. 25 SmartAisle ™ : Chilled Water Cooling In the Row Direct Expansion Chilled Water Classic Case: Return air: 24°C – 50%RH Supply air: 14ºC Fluid T: 10°C - 15°C SmartAisle ™ : Return air: 36°C – 28%RH Supply air: 21ºC Fluid T: 20°C - 26°C Liebert ® PCW Liebert ® HPC - 67% Tot 97% Freecooling (+22%) Increased EER

26. 26 Freecooling in Athens? LONDON PARIS FRANKFURT ATHENS 99% 97%80% Liebert ® HPC - Freecooling Usage Freecooling working hours Tinlet = 26°C

27. 27 Liebert ® HPC - Energy Saving Freecooling in Athens with inlet water temperature at 26°C is equivalent to a Freecooling installed in Moscow with an inlet water temperature of 15°C Increasing the water temperature Maximise Freecooling operation minimize compressors operation Maximize the reliability Athens Load 450kW -42% = €33,200 saving

28. 28 Humidity Control  Mixed System CW + DX Working with water temperatures above 15°C means that the system will be not able to dehumidify In case customer has as well strict requirements for humidity control our solution G Version Liebert ® HPC Freecooling Chiller Liebert ® PCW This will Maximize Energy Efficiency with SmartAisle solution (80% of Total Capacity) Liebert ® HPM Digital DX with Humidity control Liebert ® HPM Digital DX with SmartAisle software that will take care of humidity control. (20% of Total capacity)

29. 29 Fire Extinguishing NO standards available! DEKRA certificate (with Wagner, Siemens, customer) RESULTS: Early smoke detection no changes necessary with cold aisle containment recommendation: standard position return temp. CRAC; optional rear door rack (faster detection, localization) Fire extinguishing no changes necessary (attention: local regulations) recommendation: adjust ratio gas volume room to raised floor/cold aisle Sprinkler is only for protection of the building (attention: US companies – insurance)

30. 30 SmartAisle ™ And Servers Availability Right working conditions for IT equipment Right air flow High reliability due to multiple sensors and master rotation Improved survival time during power/cooling outage

31. 31 SmartAisle ™ - No Fear Total outage of air-conditioning, response time x 2,0 x 2,5 x 2,7 Leakages, 100% fan speed No improvements Leakages sealed Blanking panels Optimized fan speed Aisle doors installed Grating tiles – high perforation tiles installed SmartAisle ™

32. 32 SmartAisle ™ Value For Customer Maximized Efficiency Flexibility for future growth Intelligent Control - always the right conditions Higher density – saving on footprint and size of the equipment High Reliability Unique Solution

33. 33 SmartAisle ™ - Complete Solution Knürr DI strip Liebert ® MPX, MPH Avocent PM Power Liebert ® APM Racks Infrastructure Management Monitoring Avocent Data Center Planner Avocent DS View Liebert ® CRV Sensors Detectors Liebert ® iCom Liebert ® RMS Liebert ® Nform Liebert ® DCM Avocent Service Processor Manager Avocent KVM Switch Avocent Serial Console SmartAisle ™ Containment Rack PDU Liebert ® HPM, PCW Cooling Liebert ® HPC

34. THANK YOU!