All content in this presentation is protected – © 2008 American Power Conversion Corporation Row Cooling

APC by Schneider Electric– Name – Date VW Diesel Rabbit/Golf 42 MPG City / 55 MPG Hwy 2010 Toyota Prius 48 MPG City / 51 MPG Hwy $

APC by Schneider Electric– Name – Date Row Cooling InRow ® Chilled Water InRow ® Direct Expansion Thermal Containment InRow ® Pumped Refrigerant

APC by Schneider Electric– Name – Date Limits of Raised Floor Air Distribution ●No matter how well designed the data center the traditional approach still has limitations Grate tile Blade Servers Standard IT Equipment With Effort Typical Capability Extreme Uncontained Perf tile Rack Power (kW) that can be cooled by one tile with this airflow KW (Sensible Heat) = Delta T x CFM / 3145 Effective Cool Airflow Delivered to a Single Rack (cfm) (l/s) Contained

APC by Schneider Electric– Name – Date Row Cooling – Close Coupled Floor Mounted Units Overhead Units Localized Air Distribution Raised Floor Not Required

APC by Schneider Electric– Name – Date Old Faithful Geyser – Yellowstone National Park Erupts every 35 to 120 minutes for 1 1/2 to 5 minutes.

APC by Schneider Electric– Name – Date Predictable Cooling – Eliminate Mixing ● Traditional Approaches Allow cold and hot air streams to mix Cooling Units ● Close Coupling of Row Cooling keeps the hot air in the hot aisle Cooling Units Target the Heat to Eliminate Hot Spots which can cause servers to overheat

APC by Schneider Electric– Name – Date Predictable Cooling – Intelligent Control Active Response Controls Increase Availability by Actively Responding to thermal Changes Temperatures change entering IT Equipment InRow temperature probes Sense changes and send signal to controller Controller adjusts cooling capacity to balance with the heat load Active Response Controls ensures IT equipment is kept at the proper temperature

APC by Schneider Electric– Name – Date Predictable Cooling – Capacity Monitoring Visibility to Available Cooling Visible Via the Web and Interfaces to ISX Central Capacity Manager Avoid mistakes that can be made by deploying servers in areas with insufficient Cooling

APC by Schneider Electric– Name – Date Energy Efficient $

APC by Schneider Electric– Name – Date Row Cooling – 30% More Efficient Component Power Units Fans kW Chilled Water Pump kW Chiller kW Cooling Tower Pump 18.5 kW Cooling Tower kW Total Power kW Efficiency Metric Annual Operating Cost 139,572201,887$ USD InRow Air Handler Computer Room Air Handler 65 % 7 % 11 % Assumptions: 750 kW IT Load All Systems at 100% Sensible Cooling Load Only 11 % Energy Efficient Cooling for Data Centers: A Close-Coupled Row Solution

APC by Schneider Electric– Name – Date Energy Efficient – Variable Capacity Control Component Power Units Fans (750 kW IT Load) kW InRow Air Handler Computer Room Air Handler Constant Speed Fans Variable Speed Fans (600 kW IT Load) kW SAVINGS12.20kW Reduces Load on Chiller 40 % Reduction Fan Power IT Load (kW) Fan Power (%) 20% Variable Cooling Capacity Follows The IT Load 750 kW Data Center Example – Operating at 80%

APC by Schneider Electric– Name – Date Energy Efficient – Close Coupled & Containment Contain the heat to Increase efficiency ●Increase Cooling Capacity ●Reduce Power Consumption ●Increase Economizer Hours Containment Reduces Fan Power by 30-50% InRow InRow w/ Containment Return Air Temperature (°F)

APC by Schneider Electric– Name – Date Row Cooling with Containment CFD Case Study Total IT Load = 1200 kW 100 Racks 12 kW / Rack Total IT Airflow = 138,000 CFM *100% power consumption based on published product data. Part load numbers calculated based on affinity laws. Row Cooling Aisle ConfigurationOpenCACSHACS Total Airflow CFM (L/s) 174,000 (82,119) 141,000 (66,545) Total Fan Power (kW) Average Return Temp ºF (ºC) 90.6 (32.6)95.2 (35.1) Sensible Heat Ratio 111 Supply Air Temp F (ºC) 68 (20) Fan Energy Reduction with Containment 46.8%

APC by Schneider Electric– Name – Date Energy Efficient – Increased Sensible Cooling ●750 kW data center example (Latent Cooling) ●Assuming room neutral design (IT and infrastructure only) Supply Air Temperature Sensible Heat Ratio InRow Air Handler Computer Room Air Handler Effects of Unwanted Latent Cooling Chiller Energy for Latent Cooling (kWh) Annually 041,172 Humidifier Energy (kWh) Annually0220,752 Humidification and Chiller Latent Cooling cost ($USD) Annually 0$ 26,192 Annual Gallons of water095,412 Gal Operation Energy Costs

APC by Schneider Electric– Name – Date State of the Art PUE with Row Cooling

APC by Schneider Electric– Name – Date

APC by Schneider Electric– Name – Date Flexible – Capacity Sharing Row cooling units share capacity across a hot aisle improving flexibility Able to achieve N+1, N+2, 2N Redundancy. Handle mixed densities while minimizing cooling units required

APC by Schneider Electric– Name – Date Flexible - Room Neutral Design Cold Aisle ( F) Hot Aisle (80 – 105F) InRow Cooling units neutralize the heat load of IT Equipment enabling them to adapt to new and existing data center environments. Cold Aisle ( F) Hot Aisle Containment Room Stays Cool

APC by Schneider Electric– Name – Date Flexible - Install in any IT Environment Existing Data Center (Brown Field) New Data Center (Green Field) With APC Racks Without APC Racks

APC by Schneider Electric– Name – Date Existing Data Center New High Density Zone (WP-134) (16 kW per Rack) Hybrid Increase Density and Efficiency of Existing Racks (Additional 14 kW Avg. per Rack) Add More Capacity As Needed (Additional 14 kW per Rack) Maximize White Space by Enabling High Density and Reducing Cooling Foot Print

APC by Schneider Electric– Name – Date Flexibility – Modular Design ●Quick to Deploy ●Installs Like a Rack ●Modular Components Reduce MTTR ●Modular Assemblies ●Hot Swappable Fans ●Standardized Plug and Play Solution ●Controls ●Containment ●Integration – Racks, UPS, Management

APC by Schneider Electric– Name – Date Row Cooling Predictability – Increases Availability Close Coupling - Eliminates Mixing Active Response Controls Avoid mistakes by knowing available capacity Modularity Reduces MTTR Flexibility – Improves Agility Works in any IT Environment Share Capacity to handle mixed densities Modularity simplifies installation and service Future Proof Technology Handle Cooling Problems of today and tomorrow Efficiency – Reduces TCO Reduce Operating costs 30-60% Variable Capacity Control Maximize utilization of Space