Trane 5TEM6D05AV41SA 42,000 BTU 3.5 Ton Variable Speed Multi-Position Air HandlerTrane 5TEM6D05AV41SA 42,000 BTU 3. 5 Ton R 454B Convertible Variable Speed Air Handler Deliver dependable indoor comfort and efficient airflow performance with the Trane 5TEM6D05AV41SA, a 3. 5 ton convertible variable speed air handler engineered for modern residential HVAC systems. As part of Tranes 5TEM6 series platform, this air handler integrates a variable speed ECM blower motor, an all aluminum plate fin indoor coil, and a durable insulated