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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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.
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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 Danfoss Multi Ejector Solution™ ensures that transcritical CO₂ applications for retailers become energy efficient in any climate.
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Refrigeration pressure transmitters are used for commercial air-conditioning and for commercial and industrial refrigeration applications. They are made in stainless steel to be compatible with fluorinated and natural refrigerants and laser welding with no soft seals ensure hermetic tightness for decades.
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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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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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
Find answers to frequently asked questions, technical documents, a complete parts list and a video library for troubleshooting.
News
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As the refrigeration industry continues to navigate the transition to low-GWP refrigerants, Danfoss is looking forward to showcasing its full range of industrial refrigeration solutions at the upcoming IIAR Natural Refrigeration Conference and Heavy Equipment Expo, March 2-5, in Phoenix, Ariz. Attendees are invited to visit booth #721 to learn more about how Danfoss products and solutions are supporting industrial refrigeration customers in the transition and helping them meet sustainability goals.
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Supermarkets are a pivotal part of communities worldwide – but they also account for a substantial amount of energy consumption. Danfoss reimagined energy-efficient food retail in its first-ever integrated Danfoss Smart Store and Application Development Center, which opened in 2023 in Nordborg, Denmark. The store features cutting-edge technology and off-the-shelf solutions for reducing energy consumption, food loss, and carbon footprint, exemplifying Danfoss’ journey towards a net-zero supermarket.
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Transcritical 6-cylinder compressor ideal for industrial refrigeration and large-capacity heat pumps
The newest Danfoss BOCK compressor, the HGX56 CO2 T, provides an optimized design solution for industrial and commercial refrigeration, including cold storage and ice sports facilities, as well as for large industrial heat pumps. With the 6-cylinder capacity, customers can reduce the number of compressors in their system, resulting in lower system complexity and investment costs.
Contact us
For further information, please contact us.