When reviewing the 2019 global air conditioner market trends, it emerges that the recent shift to mildly flammable (A2L) refrigerant R32 has accentuated and has become more far-reaching. Diversification of R32 air conditioning equipment including air-to-water (ATW) heat pumps and scroll chillers continues to progress. In the fall of 2019, R32 variable refrigerant flow (VRF) systems were launched in the European market and have attracted the industry’s attention.