A chiller as unique as your needs.
YORK Model YVAA Air-Cooled Chillers
Variable Speed Screw, 150-500tons
PLACEHOLDER ONLY
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Johnson Controls
YVAA – YORK Variable Speed Air-Cooled Screw Chillers
YORK – A History of Leadership and Innovation
The global market leader in Variable Speed Drive chillers
with 30 years of experience varying compressor motor speeds
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YVAA – YORK Variable Speed Air-Cooled Screw Chillers
Key Benefits
Efficiency
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Sustainability
Low Sound
Confidence
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 efficiency
and 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
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Efficiency
Intelligent cost reduction,
flexible energy consumption
Efficiency
Intelligent cost reduction, flexible energy consumption
Industry’s lowest energy
consumption at design conditions
 When desired, YVAA chillers can
be offered at up to 3.4 EER
Industry’s lowest energy
consumption at off-design conditions
 When desired YVAA chillers can
be offered up to 4.8 EER
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Johnson Controls
Ordinary Chiller
YVAA
Efficiency
Intelligent cost reduction, flexible energy consumption
 YVAA chiller saves 17% to 30% in annual energy costs
 For new or replacement installations, the YVAA offers significant savings
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Johnson Controls
Efficiency
Intelligent cost reduction, flexible energy consumption
 Easily qualify for rebates
based on VSD usage
 Standard high power factor
can earn rebate without
added cost
 Tailor & tune your YVAA
chiller to qualify for any
Performance Rebate
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Johnson Controls
Sustainability
Giant step forward,
smaller footprint
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 reduction
in power consumption & your environmental 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 cost
of an air-cooled
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Johnson Controls
Sustainability
Giant step forward, smaller footprint
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 points
for the Energy and Atmosphere Credit 1 (EAc1)
Helps You Achieve BREEAM® Certification
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Johnson Controls
Low Sound
Lower the volume,
increase goodwill
Low Sound
Lower the volume, increase goodwill
Off-Design Conditions
Occur 99% of the Time
 Most stringent sound requirements
occur on evenings and weekends
 Standard VSD compressors
designed for sound relief a
reduced speeds
 Optional VSD condenser fans
will provide further significant
off-design sound benefit
 Further accessories can provide
sound reduction at on-design
conditions
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Johnson Controls
Ordinary Chiller
YVAA
YVAA Optimized
YVAA Optimized with
Attenuation Options
Low Sound
Lower the volume, increase goodwill
Sound Level That You Can Control
Ordinary Chiller
YVAA
 Our proprietary SilentNight
technology automatically integrates
with your BAS (or programmable)
control to load shed
YVAA Optimized
YVAA Optimized with
Attenuation Options
 BAS of load shedding provides
“Night Set-Back’ for the
neighborhood
 Effective when regulations
require more stringent property
line sound levels at night
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Johnson Controls
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Low Sound
Lower the volume, increase goodwill
For the Other 1% at Design Conditions:
 Property line restrictions will require attention to (worst case) design conditions
sound levels
 Just like performance, the YVAA chiller allows you to tailor and tune
sound reduction configurations to match your needs
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Johnson Controls
Confidence
Confidence-driven,
performance-proven
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
Capacity:
In kW
> 175,000
35,000 – 175,000
18,000 – 35,000
4,000 – 18,000
Confidence
Confidence-driven, performance-proven
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%
Reliable by Design
 1 Circuit per
compressor –
built-in redundancy
 Soft start standard
no current inrush
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Johnson Controls
Confidence
Confidence-driven, performance-proven
Proven Support
 15,000+ Service Technicians
(trucks on road) in 150 countries
 Service Technicians trained on
VSD screws since 2004
 Bringing decades of VSD
experience to your door
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Johnson Controls
YVAA – YORK Variable Speed Air-Cooled Screw Chillers
Key Benefits
Efficiency
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Sustainability
Low Sound
Confidence
YVAA – YORK Variable Speed Air-Cooled Screw Chillers
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 behind
every chiller
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Johnson Controls