Against the backdrop of an escalating global climate crisis, the refrigeration industry is undergoing an unprecedented technological revolution. As one of China's leading home appliance companies, Haier Air Conditioning has begun to adopt the fourth-generation environmentally friendly refrigerant R454B, taking concrete steps to achieve the “dual carbon” goals.
Honeywell R454B is a hydrofluoroolefin (HFO)-based blended refrigerant. Its core components include 68.9% R32 (difluoromethane) and 31.1% R1234yf (tetrafluoropropylene), This non-azeotropic blend achieves a perfect balance between environmental friendliness and performance, with a global warming potential (GWP) of just 466—a 78% reduction compared to traditional R410A—and well below the 750 threshold required by the EU F-Gas Regulation. R454B has an ozone depletion potential (ODP) of 0, fully compliant with the requirements of the Kigali Amendment to the Montreal Protocol. In air conditioning systems, its cooling capacity and energy efficiency ratio (EER) are superior to or equivalent to R410A, particularly demonstrating superior cooling performance under high-temperature conditions.
Haier Air Conditioning's large-scale application of Honeywell R454B not only validates the technical maturity of the fourth-generation refrigerant but also demonstrates the capability of Chinese enterprises to lead global industrial transformation. With the full implementation of the Kigali Amendment in China, R454B is poised to become the mainstream choice in the air conditioning industry, driving the entire supply chain toward carbon neutrality goals at an accelerated pace. This innovative practice undoubtedly provides a highly valuable Chinese solution for the sustainable development of the global refrigeration industry.
