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YORK Model YVAA Air-Cooled ChillersVariable Speed Screw, 150-500tons

YVAA – YORK Variable Speed Air-Cooled Screw Chillers

YORK – A History of Leadership and Innovation

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The global market leader in Variable Speed Drive chillerswith 30 years of experience varying compressor motor speeds

YVAA – YORK Variable Speed Air-Cooled Screw Chillers

Key Benefits

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Efficiency Sustainability Low Sound Confidence

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Model YVAA – YORK Variable Speed Air-Cooled Screw Chillers

Overview

A Chiller As Unique As Your Needs

Tailor and tune chiller configuration to specific job requirements

Match performance to your design point

An industry leader in efficiencyand technology

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Model YVAA – YORK Variable Speed Air-Cooled Screw Chillers

Overview

Key technology elements of the system

Heat Exchangers – high efficiency falling-film evaporator & advanced microchannel condenser coil designs

Controls – leveraging YORK and Johnson Controls technology & ‘know-how’

Variable Speed Drive – compressor VSD from the industry pioneer, and condenser fan VSD to maximize performance

Screw Compressors – proven, industry-leading screw compressor design with more than 15,000 VSD compressors operating worldwide

Efficiency

Intelligent cost reduction,flexible energy consumption

Industry’s lowest energyconsumption at design conditions

When desired, YVAA chillers canbe offered at up to 3.4 EER

Industry’s lowest energyconsumption at off-design conditions

When desired YVAA chillers canbe offered up to 4.8 EER

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EfficiencyIntelligent cost reduction, flexible energy consumption

Ordinary Chiller

YVAA

YVAA chiller saves 17% to 30% in annual energy costs

For new or replacement installations, the YVAA offers significant savings

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EfficiencyIntelligent cost reduction, flexible energy consumption

Easily qualify for rebatesbased on VSD usage

Standard high power factorcan earn rebate withoutadded cost

Tailor & tune your YVAAchiller to qualify for anyPerformance Rebate

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EfficiencyIntelligent cost reduction, flexible energy consumption

Sustainability

Giant step forward,smaller footprint

Indirect Emissions Contribute 98% of Chiller GWP Electricity generation is the largest source

of greenhouse gas emissions

Efficiency of YVAA chiller offers substantial reductionin power consumption & your environmental footprint

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SustainabilityGiant step forward, smaller footprint

Direct Emissions Contribute 2% of Chiller GWP HFC-134a refrigerant has ZERO ozone-depletion potential

and no phase-out date

Falling-film evaporator reduces refrigerant charge by up to 15%

Water Consumption Power generation can deplete water resources

An indirect benefit of the YVAA chiller: water conservation

Gain the efficiency of a water-cooled chiller for the costof an air-cooled

Helps You Achieve LEED® Certification

Enhanced Refrigerant Management:Low refrigerant use ensures 2 points for Energy and Atmosphere Credit 4 (EAc4)

Optimize Energy Performance:Higher efficiency helps your building qualify for maximum pointsfor the Energy and Atmosphere Credit 1 (EAc1)

Helps You Achieve BREEAM® Certification

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SustainabilityGiant step forward, smaller footprint

Low Sound

Lower the volume, increase goodwill

Off-Design Conditions Occur 99% of the Time

Most stringent sound requirementsoccur on evenings and weekends

Standard VSD compressorsdesigned for sound relief areduced speeds

Optional VSD condenser fanswill provide further significantoff-design sound benefit

Further accessories can providesound reduction at on-designconditions

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Low SoundLower the volume, increase goodwill

YVAA

YVAA Optimized

YVAA Optimized with Attenuation Options

Ordinary Chiller

Sound Level That You Can Control

Our proprietary SilentNighttechnology automatically integrateswith your BAS (or programmable)control to load shed

BAS of load shedding provides“Night Set-Back’ for the neighborhood

Effective when regulationsrequire more stringent propertyline sound levels at night

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Low SoundLower the volume, increase goodwill

YVAA

YVAA Optimized

YVAA Optimized with Attenuation Options

Ordinary Chiller

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For the Other 1% at Design Conditions:

Property line restrictions will require attention to (worst case) design conditionssound levels

Just like performance, the YVAA chiller allows you to tailor and tune sound reduction configurations to match your needs

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Low SoundLower the volume, increase goodwill

Confidence

Confidence-driven,performance-proven

Proven by Experience

Over 7 Million kilowatts of VSD, air-cooled screw chillers operating globally

All units combined, more than 18,000 years of cumulative field experience

ConfidenceConfidence-driven, performance-proven

Capacity:In kW

> 175,000

35,000 – 175,000

18,000 – 35,000

4,000 – 18,000

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Compressor & VSD

More than 15,000 compressors operating on VSD in air-cooled chiller applications

Eliminates slide valve and associated inefficiencies, and reduces compressor moving parts by 50%

ConfidenceConfidence-driven, performance-proven

Reliable by Design

1 Circuit per compressor –built-in redundancy

Soft start standardno current inrush

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Proven Support

15,000+ Service Technicians(trucks on road) in 150 countries

Service Technicians trained onVSD screws since 2004

Bringing decades of VSD experience to your door

ConfidenceConfidence-driven, performance-proven

YVAA – YORK Variable Speed Air-Cooled Screw Chillers

Key Benefits

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Efficiency Sustainability Low Sound Confidence

YVAA – YORK Variable Speed Air-Cooled Screw Chillers

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Smart, sustainable, silent and specified the world over.

Reduce your annual energy costs by as much as 30%

Reduce your sound by up to 16dBA to meet tighter regulations

Minimize your environmental impact dramatically

Improve your peace of mind knowing we stand behindevery chiller

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