Trane 5TEM6B03AV21S 30,000 BTU 2.5 Ton Variable Speed Multi-Position Air HandlerTrane 5TEM6B03AV21S 30,000 BTU 2. 5 Ton R 454B Convertible Variable Speed Air Handler Deliver dependable indoor comfort and efficient airflow management with the Trane 5TEM6B03AV21S, a 2. 5 ton convertible variable speed air handler engineered for residential HVAC systems. As part of Tranes 5TEM6 series platform, this air handler integrates a variable speed ECM blower motor, all aluminum plate fin indoor coil, and insulated metal cabinet construction