CO₂ vs A2L refrigerants: Choosing the right refrigerant

About this episode

The episode discusses the comparison between CO₂ and A2L refrigerants, highlighting their applications and tradeoffs.

Host Jamie Kitchen and guest Jorg Saar compare CO₂ with A2L/HFO-HFC blends and A3 options like propane (R290), explaining why CO₂ isn’t new, what transcritical operation means, and why CO₂ can excel at heat recovery (especially in supermarkets). They also cover the tradeoffs—high pressures and added complexity for CO₂ versus flammability considerations for A2Ls/hydrocarbons—concluding there’s no one-size-fits-all refrigerant; the best choice depends on the application.

People in this episode

Host: Jamie Kitchen

Guest: Jorg Saar

Topics covered

• refrigerants
• heat recovery
• HVACR
• transcritical operation
• flamability
• supermarkets

Keywords

• refrigerants
• CO₂
• A2L
• HFO-HFC blends
• propane
• heat recovery
• transcritical operation
• flamability

Mentioned in this episode

Products: CO₂, A2L, HFO-HFC blends, A3, propane (R290)

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