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NORTEK AIR SOLUTIONS Cool3™ IDEC UNIT

INDIRECT EVAPORATIVE COOLINGThe new Nortek Air Solutions Cool3 IDEC unit is a proven approach for highly efficient and cost-effective data center cooling.

• Reduces humidity fluctuations and filtration requirements for white space

• Rooftop and end-on units do not take up room in the white space

• Available in rooftop, end-on and stacked configuration units

• 200, 300, and 400 kW standard unit sizes

• Compact unit design reduces unit size and weight

• 200 and 300 kW units ship in one piece for simplified transport and installation

• Makeup air unit option

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FLEXIBLE CONFIGURATION FOR YOUR FACILITY DESIGN

THE END-ON UNIT The ideal cooling solution for new builds, hyperscale and other perimeter space-available environments.

THE ROOFTOP UNIT The optimal solution for data centers located inside larger buildings and space-constrained city center environments.

THE STACKED UNIT Stacked units are a logical choice for multi-story environments. With different size solutions, Nortek Air Solutions can meet your flexible configuration needs.

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COOL3 IDEC UNITCORE BENEFITS

Highest water efficiency

Ultra-energy efficient unit with typical pPUE below 1.1

Maximum economizer utilization

Compact size

Flexible configuration

1

2

3

4

5

6

THREE OPERATING MODES

Heat exchanger device covers 100% of load, DEC and DX are off.

DEC is turned on, providing indirect evaporative cooling. DX is off.

Mechanical cooling trim in extreme outdoor conditions.

AIR ECONOMIZER EVAPORATIVE COOLING

EVAPORATIVE COOLING AND DX

• High efficiency heat exchanger device improves unit economizer performance and wet bulb effectiveness

• Highly effective direct evaporative media delivers cooling temperatures close to outdoor air wet bulb

• EC fan technology delivers industry-leading fan efficiency

• Compact unit design reduces unit size and weight

• High mechanical cooling energy efficiency ratio (EER)

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ANNUAL OPERATION COMPARISON BY CITIES 400 KW IDEC UNIT, 95.5°F (35°C) HAR AND 70°F (21°C) CAS

COOL3 IDEC UNIT SUPERIOR OPERATING EFFICIENCY

8,000

7,000

6,000

5,000

4,000

3,000

2,000

1,000

0

8,000

7,000

6,000

5,000

4,000

3,000

2,000

1,000

0

Hou

rsH

ours

CO

MP

ETI

TOR

IDE

CC

OO

L3 ID

EC

Annual Operation for Competitor IDEC Unit

Annual Operation for Cool3 IDEC Unit

Eco

LONDON SEATTLE NEW YORK DALLAS

Evap Evap + DX

3,336

4,784

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ENERGY CONSUMPTION AND EER COMPARISON BY CITIES

1.0

0.8

0.6

0.4

0.2

0.0

50

40

30

20

10

0

CS

EE

ER

Cooling System Efficiency (CSE) Comparison — Lower CSE means less power consumption

Energy Efficiency Ratio (EER) Comparison

Cool3 IDEC Unit

CSE = EER =Total Unit Electricity Consumption (kW) Net Cooling Delivered (MBH)

Net Cooling Delivered (Tons) Total Unit Electricity Consumption (kW)

LONDON SEATTLE NEW YORK DALLAS

Competitor IDEC

ANNUAL ENERGY & AVERAGE EER EFFICIENCY IS SUPERIOR

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ENERGY EFFICIENCY pPUE IS SUPERIOR

Location pPUEWater Consumption,

for each unit Economizer Hours

Evap Hours

Evap + DX Hours

Gal x 103 m3

Frankfurt, GE 1.04 78 295 7,622 891 247

London, UK 1.04 44 167 8,070 638 52

Seattle, WA 1.05 64 243 7,851 833 76

San Jose, CA 1.05 107 405 7,072 1,497 191

Beijing, CH 1.06 186 704 5,572 1,031 2,157

Las Vegas, NV 1.06 553 2,093 4,539 3,378 843

Secaucus, NJ 1.06 183 693 6,132 1,134 1,494

Dulles, DC 1.06 161 610 6,093 756 1,911

Shanghai, CH 1.07 124 469 5,157 564 3,039

Dallas, TX 1.09 408 1,544 3,909 887 3,964

ANNUAL AVERAGE COMPARISON BY CITIES

1. For 400 kW unit running at 75°F (24°C) cold aisle supply and 100°F (38°C) hot aisle return2. The calculations were done for a 2 MW data center (totally 6 units are required based on N+1 arrangement3. The data are presented for normal data center operation (N+1 units running)4. Used COC = 3 for water consumption

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WATER USAGE COMPARISON BY CITIES

Parameter Cool3 IDEC

Competitive IDEC

OA DB limit for Eco Mode, °F (°C) 66 (19) 53 (12)

OA WB limit for Evap Mode, °F (°C) 65 (18) 65 (18)

Unit overall wet bulb effectiveness 76% 75%

Design sensible effectiveness, Eco Mode 77% 55%

ANNUAL WATER USAGE IS SUPERIOR

IDEC UNIT OPERATION

Wat

er C

onsu

mpt

ion,

gal

/kW

(m3 /

kW)

Annual Total Water Consumption (COC= 3)

LONDON SEATTLE NEW YORK DALLAS

2800

2400

2000

1600

1200

800

400

0

400 kW Unit, 95.5°F (35°C) HAR and 70°F (21°C) CAS

The Nortek Air Solutions Cool3

IDEC unit offers significant improvements in water usage efficiency compared to other IDEC systems due to:

• Less evaporative hours in a year

• Higher water usage efficiency at the same operating conditions

The Cool3 IDEC unit has significantly improved economizer performance versus a leading competitor due to the high sensible effectiveness of the heat exchanger device.

• Higher outdoor air dry bulb limit before entering Evap mode

• Fan power reduction from reduced scavenger airflow rates

• Less hours of water evaporation and reduced overall water consumption

• Ultra-efficient water usage

• Wetted media life is extended

• Water system maintenance requirements are reduced

Cool3 IDEC Unit

Competitor IDEC Unit

*For 100°F (38°C) HAR / 75°F (24°C) CAS - all unit sizes

(0.83) (1.18) (2.34)

(4.65)

(2.60)

(3.59)

(5.69)

(10.3)

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DIGITAL SMART CONTROLS

CONTROLLED EFFICIENCY

The Nortek Air Solutions Cool3 IDEC unit’s smart digital controls prioritize the most energy efficient

operating modes of the unit, allowing the unit to operate in the most cost-saving mode as often as

possible. These smart controls also minimize the unit energy and water consumptions based on the

outdoor air conditions and data center requirements.

The Cool3 IDEC unit switches between different operating modes, based on the operating conditions

for optimum energy and water consumptions, and modulates the scavenger airflow rate to lower

flow rates whenever possible for even more energy savings.

INSIDE THE COOL3 UNIT

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MORE COMPACT FOOTPRINT

200 kW 300 kW 400 kW

Competitor IDEC

Cool3 IDEC

Competitor IDEC

Cool3 IDEC

Competitor IDEC

Cool3 IDEC

Length, in. (mm) 271 (6,884) 234 (5,944) 271 (6,884) 250 (6,350) 410 (10,414) 274 (6,960)

Width in. (mm) 103 (2,617) 126 (3,201) 157 (3,988) 140 (3,556) 157 (3,988) 161 (4,090)

Height in. (mm) 152 (3,861) 143 (3,633) 152 (3,861) 151 (3,836) 152 (3,861) 195 (4,953)

Unit Footprint, ft2 (m2) 194 (18) 205 (19) 296 (27.5) 243 (22.5) 447 (41.5) 307 (28.5)

Unit Volume, ft3 (m3) 2,455 (69.5) 2,439 (69) 3,742 (106) 3,058 (86.5) 5,662 (160) 4,978 (141)

Unit Footprint Saving (%)

5% bigger 18% smaller 31% smaller

Unit Volume Saving (%)

1% smaller 19% smaller 12% smaller

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COOL3 IDEC UNIT SAVINGS THROUGH THE SEASONSThe Nortek Air Solutions Cool3 IDEC Unit is an indirect evaporative cooling (IDEC) unit which sensibly and indirectly cools the data center air. The system minimizes the hours required to mechanically cool a data center because it operates in the economizer (winter) mode for more hours during the year (depending upon location) than its competitors due to having higher outdoor air dry-bulb (DB) limits. In addition, the outdoor air wet-bulb (WB) limit is very high and is slightly higher than the competition. These advantages result in significant water consumption savings and allow for a compact DX package size.

In this mode, the main outdoor air intakes are closed and the outdoor air enters the unit through the bypass dampers. The outdoor air bypasses the DEC, which extends the life of the DEC and reduces the pressure drop on the scavenger side of the unit. The sensible heat exchanger device carries 100% of the load by rejecting the heat from the data center air (process air) to the cold outdoor air. The scavenger airflow rate modulates based on the outdoor air conditions to minimize the unit’s energy consumption in this mode.

In this mode, the bypass dampers are closed and the outdoor air enters the unit through the main outdoor air intakes. Firstly, the outdoor air (also called scavenger air) passes through the DEC where the scavenger air is cooled to its wet-bulb temperature. Then the cold scavenger air passes through the sensible heat exchanger device and will pick up the heat from the data center air. The scavenger airflow rate modulates based on the outdoor air conditions to minimize the unit’s energy consumption in this mode.

When outdoor air is extremely hot and humid, the unit requires some mechanical cooling to bring the data center’s air supply to its target temperature. Outdoor air passes through the DEC where the scavenger air is cooled to its wet-bulb temperature. It then passes through the sensible heat exchanger device where it absorbs some of the heat from the data center air. The DX cooling coil, which is in the process airstream and downstream of the sensible heat exchanger device, completes the cooling process and reduces the air temperature in the cold aisle supply to the need of the data center. The scavenger air fans run at their maximum speed in this mode.

WINTER

SUMMER

EXTREME

Economizer Mode

Evaporation Mode

Evap + DX Mode

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Verne Global Data Center Keflavik, Iceland

CyrusOne Data Center

Avid R&D Center

Large Hadron Collider Data Center Lyon, France

Centre for Scientific Computing University of Warwick

The N+1 data center achieved an impressive 1.21 PUE with efficiency contributed by the unique modular free cooling system from Eaton-Williams. This Verne Global facility is the world’s first carbon-neutral data center.

Since installing the sEnergy EMS™ system at the CyrusOne data center, cooling costs have been reduced by 40% and PUE has steadily improved from 2.7 to 1.4.

The installation cost savings of a pre-engineered, factory-tested chiller plant from our Mammoth brand, combined with the continuous operating costs savings of the energy efficient magnetic bearing chiller, resulted in an estimated five-year payback.

The use of iDataplex server cabinets and Eaton-Williams ServerCool® cooling distribution units consumes 40% less power per kilowatt than the incumbent cooling system did.

The Eaton-Williams cooling solution has enabled the University of Warwick to introduce zero thermal impact into its data center and set performance benchmark for the University’s other data centers.

MISSION CRITICAL EXPERIENCE AND EXPERTISENortek Air Solutions has three decades of experience providing cooling solutions to mission critical facilities. Here are a few examples of how we have helped data centers achieve their goals.

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NORTEK AIR SOLUTIONS DATA CENTER SYSTEMS

Nortek Air Solutions’ precision cooling solutions meet the efficiency, redundancy and scalability requirements for the world’s leading data centers. The high performance technologies behind these solutions include FANWALL TECHNOLOGY®

systems, direct/indirect (adiabatic) evaporative free cooling with DX, air- and water-side economizers, high density cooling, modular data centers and advanced controls.

COOLING AND VENTILATION PRODUCTS

Data Room Cooling Unit (DRU)

OEM Modular Data Centers (MDCs)

Data Center Infrastructure Management (DCIM) Software

Chillers and Chiller PlantsCustom Air Handlers and Packaged DX Units

Rear Door Heat Exchangers (RDHx)

Direct & Indirect Evaporative Cooling Units (DEC & IDEC)

Retrofits and Upgrades

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Nortek Air Solutions is the leading custom HVAC manufacturer

in North America. Our brands have a combined total of more

than 400 years of experience, 5 manufacturing locations, and

150 sales representative offices. Nortek Air Solutions, LLC

is a subsidiary of Nortek, Inc., a global diversified company

with sales of approximately $2.5 billion whose many market-

leading brands deliver broad capabilities and a wide array

of innovative, technology-driven products and solutions for

lifestyle improvements at home and at work.

The following are trademarks and registered brand names of Nortek Air Solutions: Cool3, FANWALL, FANWALL TECHNOLOGY, Governair, Huntair, Mammoth, Temtrol, Venmar CES, Ventrol, Webco.

Since Nortek Air Solutions, LLC has a policy of continuous product improvement, we reserve the right to change specifications without notice. Nortek Air Solutions furnishes equipment pursuant to its then current Terms and Conditions and Limited Warranty, copies of which can be found under the Terms and Conditions and Warranty links at www.nortekair.com.

© 2016 Nortek Air Solutions, LLC NAS-DC-SB-18D February 2016

Nortek Air Solutions is a leader in innovative custom and engineered HVAC solutions for commercial, industrial and critical environments through the brands Eaton-Williams, Governair, Huntair, Mammoth, Temtrol, Venmar CES, Ventrol and Webco. Nortek Air Solutions, LLC is a subsidiary of Nortek, Inc.

13200 Pioneer Trail, Suite 150Eden Prairie, Minnesota55347-4125 USA

952.358.6600fax 952.358.6700www.nortekair.comwww.datacenters.nortekair.com

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www.nortekair.com