1. Emerson Network Power Data Centre Cooling Questnet May 07

2. . 2 Who Is Emerson? …Liebert Corp. Founded in 1890 Founded in 1890 Record of consistent long-term performance Record of consistent long-term performance Global product/market leadership Global product/market leadership Recognized outstanding management process Recognized outstanding management process Strong global presence Strong global presence Solid financial position Solid financial position FY2006 Sales of $20.1B FY2006 Sales of $20.1B Over 108,000 employees and 245 worldwide plants Over 108,000 employees and 245 worldwide plants

3. . 3 Among The World’s Most Admired… ELECTRONICS 1 General Electric7.80 3 Siemens Corp.6.81 4 Maytag6.45 5 Royal Philips6.09 6 Eaton5.95 7 Whirlpool5.91 8 Toshiba5.76 9 SPX5.44 10 Tyco International3.57 2 Emerson 7.69

4. . 4 SOUTH AMERICA 12 District Offices / Support Centers 167 Pre-approved Service Subcontractors 329 Field Service Engineers/Technicians 35 Technical Support / Response Emerson Network Power Systems Global Service Capability Many Locations ASIA-PACIFIC 11 District Offices 175 Service Field Engineers 47 Technical Support / Response CHINA 29 Customer Service Centers 7 Regional MS Engineering Dept. 7 Regional DP Technical Support 210 Service Field Engineers 122 Technical Support / Response NORTH AMERICA 15 District Offices 122 Service Centers 292 Air Contractor / USA Partners 27 Approved-Certified EF&I Partners 464 Service Field Engineers 224 Technical Support / Response EUROPE 12 District Offices 50 (10 Direct + 44 Dist) Service Centers 279 Service Field Engineers 150 Technical Support / Response Sales Offices Distributors & Reps

5. . 5 Emerson Network Power Grid to chip in the Data Centre and beyond. Transfer Switch Generator Inbound Power Utility AC DC Power Systems AC Surge DC Power SystemDC Power Interface AC Power Systems AC Surge UPSAC Distribution Precision Climate Systems OEM Embedded AC/DC Power Supplies DC/DC Converter Power Units DC/DC Converter Tower ConnectIvItyConnectIvIty Services - Maintenance - Monitoring Connector Assemblies OSP Solutions

6. . 6 AgendaAgenda Issues facing the Data Centre Developing the right cooling strategy for today… and into the future Efficiency costs and benefits Example of how the right cooling strategy can lower the Total Cost of Ownership

7. . 7 Managing High Density Servers 2000 28 x 2U Servers 2kW Heat Load 2002 42 x 1U Servers 6kWw Heat Load 2006 6 Blade Centers 24kW Heat Load 2009 Rabid Blades 40kW Heat Load Heading Toward 50kW 2000 28 x 2U Servers 2kW Heat Load 2002 42 x 1U Servers 6kWw Heat Load 2006 6 Blade Centers 24kW Heat Load 2009 Rabid Blades 40kW Heat Load Heading Toward 50kW Rack density trend when fully populated with the newest server technology How most sites are dealing with server density

8. . 8 Progression to High Density Issues facing the IT Manager Getting hot air out of the Racks Getting hot air out of the Racks Hot air mixing with the inlet of other racks Hot air mixing with the inlet of other racks Diversity of loads in the Data Centre Diversity of loads in the Data Centre Flexibility of “On Demand Cooling” Flexibility of “On Demand Cooling” Inefficiencies in room design i.e. no raised floors Inefficiencies in room design i.e. no raised floors The average server replacement cycle is 3-4 years

9. . 9 DCUG Survey Results – What are the Biggest Issues facing the IT Manager

10. . 10 Source: EYP Mission Critical Facilities Inc., New York Cooling Presents an Opportunity For Energy Savings Data Centre Power Draws Cooling About 35%- 40% Sources of Energy Waste Lack of air containment (cable openings, room leakage) Unit cycling Lack of humidification control Mixing of Hot and Cold air Excess Fan energy that turns into heat Inefficiencies in room design

11. . 11 Cooling Solutions to meet the Higher Density Requirements Requires moving the cooling closer to the heat source to; – more precisely cool the specific load – not waste energy - “brute force” by cooling the whole room. Cooling coils may be in multiple locations; – External to the Rack – Overhead, Back, Side – In the Rack – Under, Side – Part of the Server Requires a fluid to be delivered to the cooling coils to transport the heat out of the Data Centre. Can be; – Chilled Water (ChW) – Refrigerant (pumped low pressure)

12. . 12 Adaptive Cooling Architecture Reliability Flexibility Total Cost Optimal Redundancy Two refrigeration circuits Design for Reliability Extended Compressor life Open architecture Room balance Extended fail safe operation High Density cooling without introducing water in the room or rack Significant Energy savings Operating Modulation for lowest energy consumption Cooling at the Source Minimal to zero Floor Space consumed Extends current infrastructure into the Future XD Cooling on Demand Retrofit any floor, any space, any time Designed for the Future Extensive configuration options

13. . 13 Planning for High Density requires A Systems Approach to the Cooling System kW / Rack Computer Room / Data centre TRADITIONAL Floor-Mount SUPPLEMENTAL COOLING Traditional Floor-Mount - the first 1-1.5 kW/m2 (or 3 - 4 kW per rack) and then utilise Supplemental Cooling above that level Controls Humidity and Filtration Creates the base airflow distribution Provides high density sensible cooling at the source

14. . 14 High Efficiency CRAC units at what cost? EC fans Ensure the good distribution of the cooling capacity when the infrastructure grows Copeland Digital Scroll TM Rooms that drive quickly changing business give out peaks of heat load

15. . 15 Copeland Digital Scroll Compressor only in Emerson CRAC units. 10 to 100% capacity modulation – Power input reduction at partial load Adjusts quickly to the heat load – less need for re heating Less number of start/stop cycling: – longer life for the compressor

16. . 16 Power Cabling Communications Cabling Under Floor Space is an Air Plenum not a cable zone !!!

17. . 17 Four Adaptable Solutions for High density cooling All Available from Emerson Network Power Open Architecture Closed Architecture Fluid Refrigerant Fluid Water Liebert XDP Knurr CoolTherm Knurr CoolTherm R Liebert XDR Liebert XDWP Liebert XDC Liebert XDWC Liebert XDV Liebert XDH Liebert XDO

18. . 18 Liquid Cooling Configurations – with Building Chilled Water Building Chiller XDWP XDP CW Refrigerant CDU

19. . 19 Liquid Cooling Configurations – without Building Chilled Water CW Refrigerant Heat Rejection XDC/XDWC Chiller (with secondary loop)

20. . 20 XDV Nominal capacity >10 kW (2.8 Ton) @ 37°C EAT – XD Coolant (R134A) changes from a liquid to a gas as heat is absorbed in the cooling coil and returned to the XDP to condense back to a liquid

21. . 21 XDO Nominal capacity >20 kW (5.7 ton) @ 33°C EAT capacty is dependent on the entering air temperature. Higher EAT will yield more capacity (up to 20%)

22. . 22 Plug and Play Capacity on Demand

23. . 23 Liebert XDH – Horizontal ‘Inter-Rack’ Cooler Cooling Capacity 22 or 30 kW (6.3 or 8.5 Ton) Fan Coil (Enclosure, Coils, 6 Fans, Controls) with Horizontal Air Flow Pattern, Placed in the Equipment Row Connects to one or two Liebert XDP/XDC Pumped Refrigerant Circuits Nominal Dual (A and B) Power Cords Connection to Liebert XD Pumped Refrigerant Circuit with Hard Piping or with Flexible Piping with Quick Connect Couplings Condensate Detection Front Air Diffuser for Discharge to Both Sides or to One Side. Technical Specifications – 240V-1ph-50Hz – 1250, 2000 Lts /sec – 500, 1200 watt – W300 x L1066 x H1982mm) Hot Aisle Top View Cold Aisle Hot Aisle

24. . 24 Liebert XD TM CoolFrame TM Up to 14kw per rack

25. . 25 Liebert XD Customer Base

26. . 26 Liebert XD Customer Base

27. . 27 Dell Computers Determines the Liebert XD system is the best means to solve the high density heat problems generated by the new generation of servers Builds a 100 sq/m simulated Data Center to test their new servers and to show their customers the recommended solutions for high density heat load The only equipment demonstrated is the Liebert XD solution Engaging with Liebert to provide Environmental Assessments for their customers Opportunity to recommend and sell Liebert equipment

28. . 28 Dell Lab Application Using XD solution

29. . 29 Dell Lab Application Using XD solution

30. . 30 Dell Lab Application Using XD solution

31. . 31 H.S.B.C. Application New York

32. . 32 VA. Tech Application Using XD solution

33. . 33 Secondary Fluid Comparisons Pumped Refrigerant System Advantages – No Water in the DC or electrical hazards – Micro-channel coil efficiency (+50%), lower air side pressure drop => lower operating costs – Smaller piping requirements – Cooling Modules can be located anywhere – Scalable Capacity (2-3x to CW ) Disadvantages – Small room scalability – Higher Fluid Cost Chilled Water Based System Advantages – Lowest Fluid Cost – No limitation to room size Disadvantages – Electrical Hazard – Operating Efficiency – May require fluid treatment to prevent fouling – Limited overhead cooling options

34. . 34 Liebert XD (eXtreme Density) Supplemental Cooling Products XDP Pumping Unit XDC Chiller with Pumping Unit XDV10 Above Rack Module XDH20/32 Horizontal Cooling Module Pre-Piping Assembly or Base Infrastructure (140 kW) Cooling Modules (mix and match) Dew Point Controlled Pumped Refrigerant Cooling XDCoolFrame20 Custom for Egenera Cooling Module XDO20 Overhead Cooling Module Not DX (Compressorised Direct Expansion) but refrigerant R134A at low pressure is used as a fluid to transport the heat. Refrigerant is a HFC, non hazardous or flammable

35. . 35 Pre-piping Assemblies Plug and Play cooling on DEMAND Add and remove cooling modules while the system is running Quick connect sizes are standard for all cooling modules Multiple configurations depending on the redundancy plan (50mm,100mm centres) Outfit the Data Centre at one time

36. . 36 30% Additional System Opportunities for Improved Cooling Efficiencies  Traditional Cooling   Liebert XD Opportunities  XD Modules Egenera Embedded Cooling Component Cooling Enclosed Rack kW for cooling per kW of server heat load Data centre Best Practices Energy Savings driven by reduction in Fan Power (cooling system and server) plus Heat Transfer efficiency 45% Optimal

37. . 37 Improving The Total Cost Of Ownership with the Liebert XD Cooling Systems How  Cooling closer to the source of the heat makes the heat exchangers more efficient (higher entering air temperatures)  Lower total Fan HP  Sensible cooling eliminates wasted energy dehumidify unnecessarily and then having to re-humidify  Less Chiller or DX infrastructure required  Overhead cooling modules require no additional floor space  Cooling solutions that meet the cooling requirements to fill racks of high density servers Results in …  Less Power (energy consumed)  Less Power and Capital Equipment  Less Floor Space consumed

38. . 38 SummarySummary Cooling solutions for higher density will need to move closer to the load and will require a reliable fluid delivery means – Cost effective cooling solutions exist that can be employed today that meet future needs – Allow racks to be fully populated Cooling at the source of the heat load will actually lower your incremental energy consumption – Less power for the cooling system provides more power for the IT equipment Which leads to a significantly reduced TCO.

39. PRECISION ROOM AIR CONDITIONER REMOTE DISTRIBUTION CABINET Cold Aisle Hot Aisle Hot Aisle Xtreme Density soln - XDO Cold Aisle RACKCOOLER Xtreme Density soln- XDV Extreme Heat Density Solution

40. . 40 Thank You For more information please contact Emerson Network Power Australia