Controls-Hitachi has introduced airCore, the first line of precision air conditioner (PAC) heat pump systems in the U.S. to use R-32 refrigerant. R-32 is a refrigerant with low global warming potential that produces fewer greenhouse gas emissions than R-410A. Low-GWP refrigerants such as R-32 reduce the impact of heating and cooling equipment on the environment and can meet upcoming refrigerant regulation. In addition to using low-GWP refrigerant, the airCore line of universal outdoor units deliver energy efficient performance and make it possible for residential and light commercial applications, including small markets, restaurants, salons and medical offices, to decarbonize their heating and cooling when the electric units are powered by renewable electricity. The units may also qualify for state rebates and incentives.