Worldwide training in CO₂ refrigeration
CO₂ is emerging as the go-to solution in the food retail market as traditional HFCs are phased out and retailers look for new ways to reduce their carbon footprint. Danfoss launched the Mobile CO₂ Training Unit in September 2016 to provide easy-to-access, hands-on training for the thousands of installers, service technicians, and OEM engineers worldwide that want to take full advantage of the natural refrigerant.
The Mobile CO₂ Training Unit makes both the technology and understanding of CO₂ refrigeration immediately available to industry professionals. Danfoss CO₂ experts will present CO₂ systems and solutions, which include simple gas-bypass systems as well as more complex parallel compression solutions, with or without heat reclaim. They will also introduce our new Multi Ejector Solution™ that can enhance the energy efficiency of systems by up to 20% on the hottest day of the year, enabling the use of trans critical CO₂ systems in much harsher climates.
Learn more about:
- Trans critical system design: simple booster system, parallel compression, parallel compression with ejector
- Commissioning of CO₂ systems
- Set up of pack and case controls
- Service procedures
- Troubleshooting and correction

Trending on CO₂ for food retail applications
CO₂ is emerging as the preferred refrigerant by a growing number of global, regional and local retailers. Learn more about Danfoss solutions for CO₂ refrigeration.
Danfoss Mobile CO₂ Training Unit - 2017 World Tour
Danfoss CO₂ Training Unit in France 2018
Mobile CO₂ Training Unit Brings CO₂ Refrigeration Training Worldwide
Highlighted products
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AKVP – electric expansion valve for food retail applicationsThe 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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CCMT electric regulating valves, transcritical CO₂The CCMT is a highly reliable electric pressure regulating valve optimized for transcritical CO₂ refrigeration. The valve has versatile applications in the transcritical system.
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Multi Ejector Solution™The Danfoss Multi Ejector Solution™ ensures that transcritical CO₂ applications for retailers become energy efficient in any climate.
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Evaporator and room controlDanfoss offers a range of evaporator controls with thermostatic expansion valves or with electric expansion valves.
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Pack controllersDanfoss offers a range of compressor and condenser capacity controls for use in food retail, in compact systems as well as in large power packs.
Related applications
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CO₂ in food retailDanfoss has pioneered CO₂ refrigeration systems for more than 10 years. Learn more about our CO₂ refrigeration solutions for supermarkets here.
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Cold roomsDanfoss solutions for cold rooms help keep the food fresh and safe for consumption and therefore contribute to reducing food loss and waste.
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Condition monitoring of HVAC/R systemsIn air flow and indoor air quality-related applications, condition monitoring functionality improves system uptime and competitiveness by preventing issues before they occur.
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Smart StoreThe Smart Store solution enhances food safety and brings down the energy bill by integrated and smart control of refrigeration, HVAC, lighting and other applications.
News
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Danfoss introduces an enhanced and a completely new electric expansion valve for CO2 installationsThursday, October 23, 2025Built on the top-performing ETS 5M valve, the new ETS 5T offers a reliable, robust valve in a compact size. The company is also introducing an enhanced version of its successful ETS 5M valve, covering an even wider range of applications.
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Introducing the new DST GS-series compact gas sensors: Built for extreme conditionsWednesday, September 17, 2025The new DST GS gas sensors by Danfoss Sensing Solutions feature the company’s patented top-down inverted design in a slim, compact design with an IP66 rating, offering extra protection in extreme conditions.
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Danfoss ensures accurate, reliable propane leak detection with new DST G290 Gas SensorTuesday, May 13, 2025The new line of gas detection sensors by Danfoss Sensing Solutions features photoacoustic technology and a patented inverted design and is intended for HVAC and commercial refrigeration systems.



































