CO₂ in Supermarkets

  • Overview
  • Highlighted products
  • Related applications
  • Learning
  • Case studies
  • Troubleshooting
  • News
  • Contact us

Discover the opportunities of CO₂ refrigeration

CO₂ is fast becoming the preferred refrigerant in supermarket applications and Danfoss is leading the way towards the adoption of CO₂. With the implementation of refrigerant regulations like the Kigali amendment to the Montreal Protocol (Global) and F-gas regulative (Europe), the quest for alternative solutions is accelerating even further and CO₂ is now recognized as the most viable and efficient solution among natural refrigerants in supermarket applications.

Danfoss has pioneered CO₂ technologies for both transcritical and subcritical systems for more than ten years and has gained valuable experience from thousands of installations all over the world. The many installations have proved that CO₂ can be applied in supermarkets enabling both environmentally friendly and energy saving systems in all types of stores. Meanwhile, alongside the traditional large applications, CO₂ is increasingly being used in a broader range of settings than ever, including very small systems.

CO₂ in supermarkets infographic - Danfoss

Why choose CO₂ as refrigerant?

Today, CO2 has proved itself as a highly reliable and cost effective refrigerant in all climates. Take a look at the CO2 infographic to learn more about all the benefits.

Features and benefits

One solution across all climates

Lowest possible Global Warming Potential (GWP)

Smart solutions for high system efficiency

Proven with more than 10,000 trans-critical CO2 systems worldwide

Industry leading application support and guidance to choose the best solution

Brochure cover of a geyser representing CO2 in refrigeration

Discover the opportunities of CO₂ refrigeration

Danfoss leads the development of solutions and components for CO₂ refrigeration and offers a wide range of products specifically designed for CO₂ transcritical systems.

Highlighted products

  • Product photo of the AK-PC 782A capacity controller by Danfoss
    AK-PC 782A capacity controller

    AK-PC 782A is complete regulating units for capacity control of compressors and condensers in a transcritical CO2 booster system with parallel compressor.

  • Product photo of the Danfoss AK-SM system manager designed for intelligent food retail refrigeration
    System managers

    The system manager is the key component of the intelligent Danfoss ADAP-KOOL® refrigeration system for food retail.

  • Product photo of the AKS 33 pressure transmitter for refrigeration applications by Danfoss
    AKS 33 pressure transmitters

    AKS 33 pressure transmitters measure and convert pressure readings into a standard signal (4–20 mA). Its robust design makes the AKS 33 suitable for a number of fields, including air conditioning, refrigeration plant, process control, and laboratories.

  • Product photo of the AKS 3000 pressure transmitter by Danfoss
    AKS 3000 absolute transmitters

    AKS 3000 absolute transmitters with high-level signal conditioned current output meet air conditioning and refrigeration system demands for accurate low-pressure regulation. Using the proven piezoresistive measuring principle and a sealed gauge as the pressure reference, atmospheric pressure variations have zero influence on the AKS 3000's regulating accuracy.

  • Product photo of the AKVP electric expansion valve by Danfoss
    AKVP – electric expansion valve for food retail applications

    The new and improved AKVP Electric Expansion Valve with future-proof technology takes simplicity and safety to the next level. Together with the intelligent Danfoss ADAP-KOOL® controllers, you get the market’s most energy saving solution.

Related applications

  • The same image used in "supermarket solutions" but cropped slightly differently
    Case controls

    Your refrigeration system is the natural place to look for energy efficiency gains. To unlock that potential, you need a controller, expansion valve, and high accuracy sensors that are smart enough to make the technology work together—and a system manager that can help you see and control the bigger picture.

  • HVAC integration in supermarkets via an look in to Supermarkets
    HVAC integration in supermarkets

    Align your heating, ventilation, air conditioning, and refrigeration systems, to save money, safeguard stock, and reduce your environmental impact. Integrated solutions unlock the full potential of each application and increases the efficiency of the entire system.

  • A photo of the Danfoss monitoring center in action
    Monitoring and management

    Connecting your refrigeration system to the cloud offers a world of possibilities to save money and improve food safety. Remote monitoring and management make it easy to check and triage system alarm. 

  • An animated image of the utopian smart store full of connected solutions within your neighborhood grocery store, but at a different angle than the last different angle
    Smart energy

    Energy cost is one of the biggest expenses in the daily operation of your supermarkets. Therefore, retailers increasingly look to enhance the energy efficiency within the stores.

  • An animated image of the utopian smart store full of connected solutions within your neighborhood grocery store
    Smart store

    The Smart Store solution enhances food safety and brings down the energy bill by integrated and smart control of refrigeration, HVAC, lighting and other applications.

Case studies

  • Danfoss logo featuring the "Engineering Tomorrow" tagline
    Momentum grows for refrigerants with low-GWP

    As momentum grows for refrigerants with Low-GWP, industry needs consider safety, environmental and economic factors. Technologies like demand-response and thermal storage are helping to decarbonize the electrical grid and shift electricity consumption, contributing to a low-GWP future.

  • Danfoss logo
    Walk-in coolers: a summary

    Use this list to learn what goes into making an efficient walk-in cooler or freezer.

  • multi-ejector
    Exploring different CO2 systems
  • CO₂ energy efficiency in supermarkets
    CO₂ energy efficiency in supermarkets

    Interest in carbon dioxide (CO₂) as a refrigerant in food retail applications has never been more intense than it is today and as such, there has been a lot of discussion with regards to the energy efficiency of these systems. The energy discussion is focused on two factors: climate change performance and financial justification.

  • Discover the opportunities of transcritical Co2 with heat reclaim Danfoss
    Discover the opportunities of transcritical CO₂ with heat reclaim

    The heat reclaim potential depends on the climate conditions, and so far CO₂ refrigeration with heat reclaim has mostly been applied in colder climates. Read more.

  • Making the case for CO2 refrigeration in warm climates Danfoss
    Making the case for CO₂ refrigeration in warm climates

    In this article, we will explore the pros and cons of different solutions for CO₂ refrigeration in warmer climates – from basic cascade systems to the advanced ejector technology.

Troubleshooting

Supermarket support icon featuring a shopping cart

Supermarket support

Find answers to frequently asked questions, technical documents, a complete parts list and a video library for troubleshooting.

News

  • Director of Food Retail, Peter Dee poses with the AHR Expo Innovation board members while accepting the award for Product of the Year
    Danfoss CO2 Adaptive Liquid Management solution named Product of the Year
    Tuesday, February 11, 2020

    The Danfoss CO2 Adaptive Liquid Management solution, which fully utilizes all of an evaporator's surface area and improves the energy efficiency of transcritical CO2 refrigeration systems by as much as a 10 percent, received top honors in the 2020 AHR Expo Innovation Awards program.

  • Red Danfoss Engineering Tomorrow logo
    Three Danfoss technologies named winners of 2020 AHR Expo Innovation Awards
    Thursday, October 10, 2019

    The annual awards competition honors the most inventive and original products, systems, and technologies showcased at the AHR Expo. This year, Danfoss will receive awards in the program’s Cooling, Green Building, and Refrigeration categories.

  • attendees at the Danfoss Mobile training Unit
    One last chance for applied CO₂ training in Baltimore
    Friday, January 4, 2019

    The industry's response to the Danfoss Mobile CO₂ Training Unit in 2018 was so positive, the unit will remain in the United States a little longer to give installers, service technicians, and OEM engineers in the Baltimore, MD area another opportunity to receive accessible CO₂ refrigeration systems knowledge and training.

Contact us

For further information, please contact us.