Train with the CO2 refrigeration experts

CO2 refrigeration requires specialized knowledge for working with high-pressure R-744 systems. That’s why training is so important. Our courses were designed by the experts behind M&M Carnot’s technology—and based on their real-world experiences. You’ll benefit from practical and application-focused training as well as the convenience of self-paced online learning. And everything you learn can be applied immediately.

Who can take M&M Carnot training?

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Contractors

Gain practical knowledge for successful installation and startup.

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Service technicians

Improve troubleshooting and commissioning skills.

Technician wearing hard hat
Engineers

Develop a stronger understanding of transcritical system operation.

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End users and operators

Learn how system design impacts performance and reliability.

Your CO2 learning path

Workers participating in a warehouse safety briefing

Step 1 - Safety and fundamentals

CO2 110 - CO₂ Refrigerant Safety (1 Hour)

  • Safe handling procedures
  • Hazards associated with R-744
  • Pressure considerations
  • Emergency response awareness

CO2 120 - Properties of R-744 Carbon Dioxide (2 Hours)

  • Thermodynamic properties
  • Critical point concepts
  • Pressure-temperature relationships
  • Advantages of CO₂ refrigeration

Warehouse staff reviewing inventory using a tablet.

Step 2 - Understanding the system

CO2 200 - Transcritical Systems (2 Hours)

  • Transcritical operation
  • Major system components
  • Refrigeration cycle fundamentals
  • System control strategies

CO2 240 - CO₂ Evaporators (2.5 Hours)

  • Evaporator design
  • Operating principles
  • Defrost strategies
  • Performance considerations

Team reviewing operations data in an industrial facility.

Step 3 - Field application

CO2 310 - Installation of CO₂ Systems

  • Installation best practices
  • Component considerations
  • System preparation
  • Practical field requirements

CO2 320 - Commissioning Transcritical Systems (4 Hours)

  • Startup procedures
  • Commissioning processes
  • System verification
  • Operational readiness

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Training classes