Energy Star-rated, the residential and light commercial geothermal product line includes water-to-water, water-to-air, water-to-air/water combination, and split condensing/air-handling systems. The units feature the Orb controller, which provides quick start-up right from the full-color LCD touchscreen with control of up to four forced-air zones as standard, real-time displays of EER and coefficient of performance (COP) estimates, water and air temperatures, and easy troubleshooting. All systems use R-410A refrigerant and offer a 10-year limited warranty. Water-to-water residential and light commercial models are available in reversible and nonreversible sizes from 2-12 tons. Water-to-air models range in size from 1.5-6-ton units in both vertical and horizontal configurations. Compact commercial systems are also available for water-source or geothermal applications. Water-to-air/water-to-water combination units provide forced-air heating and cooling and the ability to provide heat for radiant-heated floors, domestic hot water, pools/spas, and snow melting. They are available in 3-6 tons in both vertical and horizontal configurations. Split condensing/air-handling systems, from 2-6-tons, are well-suited for new and retrofit applications, the company said.