CO₂ compressors are specifically engineered to withstand high-pressure conditions.
Carrier Japan compressors, led by Toshiba’s leading technology, are designed with high-strength components and comply with international safety standards and certifications, ensuring safe and reliable operation even under transcritical CO₂ conditions.

The initial investment may be higher compared to HFC systems.
However, CO₂ refrigerant (R744) has a Global Warming Potential (GWP) of 1, making it future-proof against tightening environmental regulations. Over the lifecycle, businesses benefit from reduced regulatory risks and long-term operational advantages.
Carrier Japan supports customers with optimized system proposals to balance initial investment and lifecycle cost.

CO₂ compressors can operate efficiently even in high ambient temperature environments when properly designed as part of a transcritical CO₂ system.
System configurations such as gas coolers, ejectors, or parallel compression can significantly improve performance under high-temperature conditions. Carrier Japan, leveraging Toshiba Carrier compressor technology, provides optimized system solutions to ensure stable and energy-efficient operation across a wide range of climates.

CO₂ compressors offer several key advantages over conventional HFC-based refrigeration systems.
CO₂ refrigerant (R744) has a Global Warming Potential (GWP) of 1, making it a long-term, environmentally sustainable solution that aligns with global regulations such as the Kigali Amendment and emerging PFAS restrictions.
In addition, CO₂ systems can achieve high energy efficiency depending on system design, especially in transcritical configurations. They also enable heat recovery, which improves overall system energy utilization.
As regulations on HFC refrigerants continue to tighten, CO₂ compressors are increasingly selected as a future-proof solution with reduced regulatory risk and strong sustainability performance.

• Carrier Japan, incorporating Toshiba compressor expertise, offers advanced CO₂ solutions tailored to your business needs.

CO₂ (R744) is rapidly gaining popularity as a refrigerant due to increasing environmental regulations and the global shift toward decarbonization.

Unlike HFC refrigerants, CO₂ has:

• A Global Warming Potential (GWP) of 1
• No ozone depletion potential (ODP)
• No PFAS-related concerns

In addition, regulatory frameworks such as the Kigali Amendment are accelerating the phase-down of high-GWP refrigerants, making CO₂ an attractive long-term alternative.
With its strong environmental performance, regulatory compliance, and growing adoption worldwide, CO₂ is becoming a standard refrigerant choice for future-ready refrigeration systems.

CO₂ compressors are widely used across various commercial and industrial refrigeration and heat pump applications.

Typical applications include:

• Supermarkets and retail refrigeration systems
• Cold storage and distribution centers
• Food processing and industrial refrigeration
• Heat pumps for hot water and heating applications

CO₂ refrigeration systems are particularly suitable for businesses seeking environmentally friendly and energy-efficient solutions while complying with current and future regulations.

• Carrier Japan offers application-specific CO₂ solutions using Toshiba compressor platforms.

Yes, in many cases conversion is possible.
However, CO₂ systems require redesign due to different operating pressures and system architectures. Carrier Japan supports system evaluation, redesign, and optimization, utilizing Toshiba compressor technologies to enable a smooth transition from HFC to CO₂ refrigerants.

CO₂ compressors are typically used in transcritical CO₂ refrigeration systems, which differ from conventional HFC systems in terms of pressure and system architecture.

Common system configurations include:

• Gas coolers instead of condensers
• Parallel compression systems for improved efficiency
• Ejector systems for energy optimization
• Booster systems for medium- and low-temperature applications

The optimal configuration depends on ambient conditions, application requirements, and energy efficiency targets.

• Our engineering team can support system design, simulation, and optimization based on your project requirements.

Yes, CO₂ compressors are well-suited for low-temperature refrigeration applications.
CO₂ systems are commonly used in freezer applications, cold storage, and food processing environments where stable low-temperature operation is required.
Booster system configurations allow simultaneous medium-temperature and low-temperature operation within a single CO₂ refrigeration system.
When properly designed, CO₂ compressors provide reliable performance, high efficiency, and long-term stability even in demanding low-temperature conditions.

• Contact us to evaluate CO₂ solutions for your low-temperature applications.