Case study

ChallengeAs a data center and interconnection services industry leader,

CoreSite goes to great lengths to ensure optimal design with

every individual redevelopment or new-build data center

project. This includes exploring the newest data center

infrastructure and process technology to validate the

potential performance of any data center.

Having already delivered an award-winning data center at its

Santa Clara campus, CoreSite’s newest challenge was

designing its next campus location to an even higher level of

energy efficiency and environmental responsibility, while

maintaining CoreSite’s brand standard of reliability, flexibility,

scalability and security.

SolutionCoreSite selected Trane with the goal of leveraging the latest

in cooling infrastructure and design expertise to deliver a

custom cooling process unique to the industry. With a clear

understanding of data centers and how to most efficiently

control their environment, Trane worked closely with the

CoreSite data center personnel to develop a solution that

combined equipment, controls and control sequences to

accomplish this objective.

CoreSite Realty CorporationCustom evaporative cooling delivers unmatched PUE/WUE optimization Santa Clara, CA

Managing more than two million square feet of data center space in seven major U.S. markets, CoreSite is one of the largestproviders of carrier-neutral data centers and interconnection services in the country. CoreSite recently delivered its twelfth datacenter, the second of four planned data centers at its Santa Clara campus. CoreSite assessed the project according to brandstandards: a strong focus on reliability and security for the continuity of future customer deployments as well as innovative,energy-efficient design.

Efficiency and energy savings

Evaporative cooling was used to reduce the load on the

mechanical equipment and ensure proper humidity levels in

the data center. The cost-effective system uses evaporation

to lower air temperatures, reducing the load on the HVAC

compressors. The evaporative system meets cooling

requirements, while using only 25 percent of the energy of a

conventional system. In addition, rainwater is captured and

reused to lower water consumption, reducing reliance on city

water to run the system.

CoreSite delivered its twelfth data center, a 101,000 sq ft facility on its

Santa Clara campus.

December 2011

Pre-engineered for reliable operation

A Trane IntelliPak™ Rooftop System with controls and Rapid

Restart™ was installed to increase energy efficiency, while

reducing data center downtime. The system was designed

with pre-engineered logic for reliable operation. Advanced

controls on the IntelliPak use smart strategies that adapt to

changes and adverse conditions to keep the system running.

The pre-engineered Rapid Restart™ control solution

integrates into IntelliPak to enhance data center reliability. In

the event of a power outage, the IntelliPak units are designed

to go from full stop (no power) to full cooling in 120 seconds

or less after regaining electrical power, preventing

overheating of the servers. Upon meeting the required

cooling needs during the rapid restart sequence, the unit will

automatically shift into standard cooling operation.

Customized for customer comfort

With the modular system located on the roof, noise levels in

the data centers are decreased, making it more comfortable

for customers. Cooling equipment is dedicated for each data

center room without overlap with other systems. This allows

CoreSite to customize data center set points based on each

customer’s needs.

Systems and services

• A cost-effective evaporative cooling system reduces

mechanical cooling and improves load profile.

• The IntelliPak™ Rooftop System with advanced controls

and Rapid Restart™ maximizes uptime.

ResultsTrane was able to exceed CoreSite’s expectations, delivering a

cooling process not yet seen by the data center and

interconnection industry. The innovative design produces an

ideal data center operating environment by optimizing Power

Usage Effectiveness (PUE) levels as well as Water Usage

Effectiveness (WUE) in the same system. The projected

average annual PUE of 1.26 would make CoreSite’s newest

data center the most efficient in its portfolio and one of the

most efficient in the U.S. Trane’s custom cooling process will

also play a significant role in CoreSite’s application for U.S.

Green Building Council Leadership in Energy and

Environmental Design (LEED) Gold certification.

"Trane understands the importance of keeping our data

centers running," said Jay DiMaggio, executive project

manager, CoreSite. "With the modular system, we don’t have

to worry about the complexity of cooling towers, pumps,

chillers, pipes or valves. The data center is reliable, efficient

and scalable."

Trane worked closely with CoreSite data center personnel to deliver a

cooling process with unmatched PUE/WUE optimization.

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© 2011 Trane All rights reserved

CASE-SLX287-EN December 7, 2011