Allied 2 Ton Upflow/Horizontal Constant Torque ECM Air Handler with R-454B Refrigerant This versatile air handler is designed for upflow and horizontal installations, delivering efficient and quiet performance with a Constant Torque ECM blower motor. It features an Omniguard coil for enhanced corrosion resistance, mechanical or brazed line set connections, and a check and expansion valve for precise refrigerant control. The heavy-gauge steel cabinet ensures durability, while anti-microbial dual-position drain pans promote hygienic condensate management.