With the expansion of the commercial line, Ruud is able to pass on to Contractors the ability to satisfy government regulations while delivering superior comfort in a wide range of tonnages. The R-410A Package Gas Electric and Package Air Conditioners have an EER of up to 11.5, which exceeds 2009 Energy Star® requirements and meets the standards set forth by the Energy Policy Act of 2005, which go into effect in January 2010. A thermostatic expansion valve is used to monitor earth-friendly refrigerant R-410A, providing precise refrigerant control and unparalleled comfort. The Package Gas Electric (model RKNL) and Package Air Conditioners (model ULNL) are available in 3-5 ton, 6-12 ½ ton and 15-25 ton sizes, allowing Contractors to meet a wide range of applications.