Trane 5TDM5B03AC21 30,000 BTU 2.5 Ton Single Phase Multi-Speed Cold Climate Air Handler

Trane 5TDM5B03AC21SA – 30,000 BTU 2.5 Ton R-454B Dedicated Variable-Speed Air Handler

Deliver reliable indoor comfort and efficient airflow performance with the Trane 5TDM5B03AC21SA, a 2.5-ton dedicated air handler engineered for modern residential HVAC systems. As part of Trane’s 5TDM5 series platform, this air handler features a variable-speed ECM blower motor, copper tube–aluminum plate-fin indoor coil with Blue Fin coating, and a durable painted metal cabinet designed to support efficient heating and cooling operation when paired with Trane 5HCL5 low-profile heat pump systems.

Variable-Speed ECM Blower Motor Performance
The 5TDM5B03AC21SA utilizes a direct-drive blower powered by a variable-speed ECM motor engineered for efficient airflow delivery and improved indoor comfort control. The blower operates at approximately 1010 RPM and delivers nominal airflow of approximately 800 CFM, supporting consistent air distribution and optimized system performance in residential HVAC applications.

2.5 Ton Air Handler Capacity Platform
Model nomenclature identifies this unit as part of the 2.5-ton air handler capacity platform, supporting nominal system capacities ranging from approximately 12,000 to 30,000 BTU. The unit operates on 208/230V, single-phase, 60 Hz electrical service and utilizes a 24V control system, allowing compatibility with matched Trane heat pump systems designed for R-454B refrigerant operation.

Copper Tube–Aluminum Plate-Fin Indoor Coil with Blue Fin Coating
The indoor coil features copper tubing with aluminum plate fins engineered for efficient heat transfer and durability. A Blue Fin protective coating helps improve corrosion resistance and extend coil life in demanding residential environments. The system utilizes an electronic expansion valve (EEV) to precisely regulate refrigerant flow and maintain efficient operation during both heating and cooling cycles.

Four-Way Convertible Installation Design
The 5TDM5 series air handlers feature a multi-position cabinet design that supports installation in upflow, downflow, horizontal left, or horizontal right configurations. This flexibility allows the unit to be installed in closets, basements, crawlspaces, attics, or utility rooms depending on the building layout and HVAC system configuration.

Durable Painted Metal Cabinet Construction
The cabinet is constructed from painted metal designed to provide long-term durability and structural integrity. The unit is engineered to maintain 2% or less air leakage, helping improve airflow efficiency and overall system performance while maintaining quiet operation.

Draw-Through Airflow Design with Integrated Filter Rack
The air handler uses a draw-through airflow configuration that promotes consistent airflow across the indoor coil for improved heat transfer performance. A factory-integrated filter rack accommodates a 16 × 20 × 1 filter, helping maintain indoor air quality and protect internal system components.

Electric Heat Compatibility for Supplemental Heating
The 5TDM5B03AC21SA supports field-installed electric heater kits such as the Trane BAYHTR17 series, allowing optional supplemental electric heat when paired with heat pump systems. Heater capacities such as 5 kW and 10 kW are available to accommodate various installation requirements.

Compact Cabinet Design for Flexible Installation
The unit features cabinet dimensions of approximately 21.25 in. H × 18.1 in. W × 43.5 in. D (uncrated), allowing installation in tight mechanical spaces while maintaining proper airflow capacity for residential HVAC systems.

Engineered for Dedicated Residential HVAC Performance
Ideal for residential HVAC systems paired with Trane low-profile heat pumps, the Trane 5TDM5B03AC21SA air handler delivers dependable airflow performance, corrosion-resistant coil construction, and flexible installation capability in a variable-speed indoor platform designed for efficient comfort and long-term reliability.