New Tempstar commercial systems include the 10-SEER CAC Series split-system air conditioners available in 3- to 5-ton models, and 7.5- and 10-ton models; the 12-SEER CAE Series split-system air conditioners available in 3- to 5-ton models; and the 10-SEER CHC Series split-system heat pumps available in 3- to 5-ton models. The three-phase systems are equipped with high-efficiency scroll compressors, and feature a top-discharge design with a corrosion-resistant grille. The models are also designed to be easy to install and service, the company says.