Trane 5TEM4B02ACS21SA 24,000 BTU 2 Ton Multi Speed Multi Position Air HandlerTrane 5TEM4B02AC21SA 24,000 BTU 2 Ton R 454B Convertible Constant Torque Air Handler Deliver reliable indoor comfort and efficient airflow performance with the Trane 5TEM4B02AC21SA, a 2 ton convertible air handler designed for residential HVAC systems using modern low GWP refrigerant technology. As part of Tranes 5TEM4 series platform, this air handler combines a constant torque ECM blower motor, all aluminum plate fin indoor coil, and insulated