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.
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
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
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AK-PC 782A is complete regulating units for capacity control of compressors and condensers in a transcritical CO2 booster system with parallel compressor.
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The system manager is the key component of the intelligent Danfoss ADAP-KOOL® refrigeration system for food retail.
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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.
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The CCMT is an electric operated valve designed specifically for operation in CO2 systems. The valve is capable of functioning either as an expansion valve, as a pressure regulator for the gas cooler or as a gas bypass valve with back-pressure regulation in trans-critical or subcritical applications.
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CTR 3-way heat reclaim valve is designed to allow full proportional control of the surplus heat from compressor pack into the heat exchanger of transcritical heat reclaim solutions, securing availability of heat and hot water. The CTR valve prevents pressure peaks eliminating costly system down-time and the risk of insufficient heat supply for store heating and hot water, regardless of installation size.
Related applications
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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.
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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.
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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.
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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.
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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.
Learning
Case studies
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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.
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Use this list to learn what goes into making an efficient walk-in cooler or freezer.
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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.
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All over the world, the phase-down of conventional HFCs in food retail applications has become the center of attention in the effort to combat climate change. Most recently, at the meetings of the parties under the Montreal protocol in Dubai where qualitative global phase-down of HFCs was agreed with a target of quantifying the details in 2016.
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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.
Troubleshooting
Supermarket support
Find answers to frequently asked questions, technical documents, a complete parts list and a video library for troubleshooting.
News
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The new CO2 MiniPack Solution makes it easy for the owners of small stores to harness the benefits of CO2 by combining five 100% compatible products into a single solution.
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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.
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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.
Contact us
For further information, please contact us.