The current commercially available technologies, used as replacements for HCFCs, not only perform less efficiently in high-ambient conditions but may also possess high-GWP characteristics which do not provide optimum alternatives in the context of the HCFC phase-out programmes in this sector. This exceptional project is designed to respond to some of the challenges related to the availability of low-GWP alternative refrigerants that are sustainable in the long term and their associated technologies including final products, components, and accessories in high-ambient temperature countries.