YORK International Corporation has extended its line of Eco2 packaged rooftop units up through 130 tons. The models fill out the YORK product range from one ton through 130 tons and enable owners who require larger-tonnage equipment to take advantage of the same components and features of YORK's smaller Eco2 units. As its name implies, Eco2 rooftop air conditioners offer both ecologic and economic benefits. The units are available with either R-407C or R-22 refrigerant. The new units feature a design EER rating up to 9.9 and multiple steps of capacity-control for superior off-design energy performance.