Global Directory

  • Building Automation and Controls
    • Johnson ControlsJCI logo
    • MetasysMetasys icon
    • Facility Explorerfacility explorer
    • EasyIOEasyio Logo
    • PENNpenn
  • Digital Solutions
    • OpenBlueOpenBlue Logo
    • FM:Systemsfm system logo
  • Fire Detection
    • AutocallAnsul logo
    • FireClassFireClass logo
    • SimplexSimplex logo
    • ZettlerZettler logo
    • VigilantVigilant logo
    • DBEDBE written on a white background
  • Fire Suppression
    • Tyco Firetyco
    • AnsulAnsul
    • ChemguardChemguard logo
    • SkumSkum logo
    • HygoodHygood logo
    • GrinnellGrinell logo
    • SprinkCADSprinkCAD logo
    • Pyro ChemPyro-Chem logo
    • AquaMistaquamist_logo
  • HVAC Equipment
    • Johnson ControlsJCI logo
    • YORKyork-process-system-logo
    • EnvirotecEnviro-Tec logo
    • Miller-Pickingmiller-picking-logo
    • PacePace-logo
    • QuantechQuantech logo
    • Silent-AireSilentAire Logo
  • Industrial Refrigeration
    • YORKyork-process-system-logo
    • FrickFrick Industrial Refrigeration logo
    • M&M Carnotmm-carnot logo
    • SabroeSabroe logo
  • Retail Solutions
    • Sensormaticsensormatic-logo
  • Security
    • American Dynamicsad
    • Bentel Security bentel
    • CEM SystemsCEM Systems  logo
    • CloudvueCloudvue logo
    • DSCdsc
    • ExacqExacq
    • Illustraillustra
    • Kantechkantech
    • SESSES Logo Image
    • Software HouseSoftware House
    • Visonicvisonic
JCI Logo
YORK logo
  • Products & Solutions
    Products & Solutions
    • All Products and Solutions
    • Air Systems
      Air Systems
      • Air Systems
      • Air Handling Units
    • Chilled Water Systems
      Chilled Water Systems
      • Chilled Water Systems
      • Absorption Chillers
      • Air-Cooled Chillers
      • Commercial Heat Pumps
      • Condensing Units
      • Water-Cooled Chillers
    Featured

    YDAM Air-cooled Magnetic Bearing Centrifugal Chiller

    YDAM product

    The YORK® YDAM is an air-cooled magnetic bearing centrifugal chiller that is specifically designed for high-density data centers applications.

    Learn more
  • Services & Support
    Services & Support
    • All Services & Support
    • Chiller Access Manager
    • HVAC Navigator
    • Professional Services
    • Service and Maintenance
    • Technical Support
  • Industries
    Industries
    • All Industries
    • Data Centers
    • Healthcare
    • Higher Education
    Featured

    Smarter, safer, and more resilient AI data center solutions

    data-center-interior-racks-windows

    The most comprehensive integrated data center solutions available today.

    Learn more
  • Resources
Contact us
  1. YORK®
  2. Products and Solutions
  3. Chilled Water Systems
  4. Water cooled Chillers
  5. CYK Water-to-Water Compound Centrifugal Chiller/Heat Pump
CYK product image
  • CYK thumbnail

CYK Water-to-Water Compound Centrifugal Chiller/Heat Pump

7,000 – 38,000 MBH (2,051 – 11,136 kW) heating

400 – 2,000 ton (1,406 – 7,033 kW) cooling. Turn the corner from fossil fuel burning boilers in campus buildings with standalone heating and cooling needs by electrifying with the purpose-built York CYK — jump-starting your path to decarbonization in buildings with lesser heating and cooling loads. The CYK Compound Centrifugal Heat Pump is the ideal, high-efficiency electric heating solution for HVAC systems delivering high-temperature hot water as high as 180 °F (82 °C)​.

  • Designed specifically for high-head conditions, the York CYK heat pump delivers high-temperature water with superior efficiency
  • Two-compressor design also provides unique adaptability, with each compressor capable of being optimized to match specific operating conditions and requirements
Back to Top

CYK Water-to-Water Compound Centrifugal Chiller/Heat Pump

  • Overview
  • Benefits
  • Features
  • Product Literature
  • Related Products
    Contact Us

    All-new CYK-400

    York extended the application range of the CYK product line with the all-new reduced capacity CYK-400. This new range offers 3–5x more efficiency than conventional fossil fuel burning systems, reducing operational costs up to 50% vs. a traditional boiler and chiller combination. The CYK-400 has been engineered to adapt to a variety of applications from data centers and dry cooling to light commercial buildings, small hospitals and industrial processes. Engineered with sustainability in mind, CYK-400 is available with low GWP (global warming potential) refrigerants R-1234ze and R-515B. We're not waiting for the future. We're engineering it
    Download Flyer
    All-new CYK-400

    Benefits

    Superior High-Head Performance
    Superior high-head performance

    The two-compressor design offers superior performance in air-cooled, brine-chilling, ice-thermal and heat-pump applications.

    Adaptability
    Adaptability

    Each compressor can be optimized to match application requirements and operating conditions.

    Reliability
    Reliability

    Quantum LX Control Center simplifies operation.

    Features

    • Two electric motor-driven centrifugal compressors deliver simultaneous hot water and chilled water @ 42 °F (5 °C) / 180 °F (82 °C)​
    • At 400 tons (1,406 kW) cooling and 7,000 MBH (2,051 kW) heating the CYK-400 offers a reduced capacity with all the features expected from the CYK product line
    • Certifications: ASME, UL/ETL
    • Optional, patented double-bundle condenser for the most efficient management of part-load conditions
    • Compressors and motors mounted above the shells for a compact footprint
    • Patented OptiSoundTM Control for reduction in operational sound levels
    • Turndown: 25% of design capacity made possible through VSD and compressor VI control technologies
    • Refrigerants: R-1234ze or R-515B
    • Compound chiller design (two compressors in series)
    • Quantum LX Control Center
    • Capacity control on each compressor for better off-design performance
    Person entering values into york

    More control – More protection – Better records

    Learn More about YORK Chiller Access Manager

    Technical Resources

    Document Name
    Description
    Language
    Resource Type

    Flyer

    CHI_FLY_Optisound Control, Product Sheet, PUBL-6683 (English)

    OptiSound Control Flyer

    English Flyer
    View

    Case Study

    160.82-EG1 (English)

    CYK Engineering Guide

    English Case Study
    View

    Brochure

    YORK CYK Water-to-Water Heat Pump, Saving with Sustainability Sales Brochure, PUBL-4030 (English)

    CYK Brochure

    English Brochure
    View

    Case Study

    CHI_CS_CYK Compound Centrifugal Resources Chillers (English)

    Case Study: St. Michael’s Hospital

    English Case Study
    View

    Flyer

    CHI_FLY_Turbine YK EP Centrifugal Chiller with Economizer (English)

    Boost the Output of Gas-turbine Generators

    English Flyer
    View

    Flyer

    CYK-400 Product Flyer (English)

    CYK-400 Product Flyer

    English Flyer
    View

    Flyer

    CHI_CS_Increasing Central Plant Efficiency via a Water to Water Heat Pump (English)

    Case Study: Increasing Central Plant Efficiency

    English Flyer
    View

    Video

    YORK CYK Heat Pump - Modes of Operation (English)

    Video: YORK CYK Heat Pump - Modes of Operation

    English Video
    View
    No resource found for selected filter

    Back

    Next

    Related Products

    SMART READY
    YZ Magnetic Bearing Centrifugal Chiller

    YZ Magnetic Bearing Centrifugal Chiller

    • With variable-speed drive, a variable-geometry diffuser and magnetic-bearing technology York YZ delivers up to 35% annual energy savings versus traditional, fixed-speed, oil-bearing chillers
    • Magnetic-bearing driveline offers outstanding reliability and 80% fewer moving parts than traditional oil- or refrigerant-lubricated drivelines
    • Robust and reliable high-speed, hermetic induction motor reduces maintenance
    SMART READY
    YK Centrifugal Chillers

    YK Centrifugal Chillers

    • Designed with sustainability in mind, the re-engineered YK chiller has been optimized specially for use with ultra-low GWP refrigerant R-1234ze
    • ISASecure® certified York Chiller Access Manager provides secure access to chiller controls to help mitigate the risk of unauthorized access and security breaches
    • State-of-the-art OptiView™ Control Panel optimizes chiller performance by precisely controlling the leaving chilled liquid temperature and motor current
    Titan™ OM Custom Design Centrifugal Chiller

    Titan™ OM Custom Design Centrifugal Chiller

    • Uses zero-ODP, R-134a or R-513A refrigerant
    • Industrial, reliable, long-lasting proven design
    • Custom multi-stage chiller with flexible options of steam turbine or electric motor with variable speed drive

    Insights From Industry Experts

    Read more

    Contact us

    Please read our Privacy Notice for information on how we protect and manage your personal data. By completing this form and submitting your information, you confirm that you have reviewed, understood and accepted our privacy terms as well as our cookie terms.

    Contact Us
    Find a rep
    • All Products and Solutions
    • Air Systems
    • Chilled Water Systems
    • All Services and Support
    • Chiller Access Manager
    • HVAC Navigator
    • Professional Services
    • Service and Maintenance
    • Technical Support
    • All Industries
    • Data Centers
    • Healthcare
    • Higher Education
    • Resources
    YORK logo
    CONNECT WITH US
    • LinkedIn Logo
    JCI Logo
    © 2026 Johnson Controls Inc. All rights reserved.
    • Privacy Notice
    • Suppliers
    • Terms of Use