Trane 5TEM4B03AC31SA 30,000 BTU 2.5 Ton Multi Speed Multi Position Air Handler

Trane 5TEM4B03AC31SA – 30,000 BTU 2.5 Ton R-454B Convertible Constant-Torque Air Handler

Deliver dependable indoor comfort and efficient airflow performance with the Trane 5TEM4B03AC31SA, a 2.5-ton convertible air handler engineered for modern residential HVAC systems. As part of Trane’s 5TEM4 series platform, this air handler integrates a constant-torque ECM blower motor, all-aluminum plate-fin indoor coil, and insulated galvanized steel cabinet construction designed to support reliable heating and cooling performance across a wide range of residential installations.

Constant-Torque ECM Blower Motor Performance
The 5TEM4B03AC31SA utilizes a direct-drive centrifugal blower powered by a constant-torque ECM motor engineered to provide consistent airflow and efficient operation. The blower operates at approximately 1050 RPM and delivers nominal airflow of approximately 800 CFM, supporting balanced air distribution and improved system efficiency 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 18,000 to 30,000 BTU. The unit operates on 208/230V, single-phase, 60 Hz electrical service, allowing compatibility with a wide range of matched outdoor air conditioning and heat pump systems utilizing R-454B refrigerant.

All-Aluminum Plate-Fin Indoor Coil
The indoor coil features an all-aluminum plate-fin design engineered to provide efficient heat transfer and enhanced corrosion resistance. Designed for R-454B refrigerant systems, the coil utilizes a factory-installed thermal expansion valve (TXV) to regulate refrigerant flow and help maintain consistent system performance during both heating and cooling operation.

Convertible Multi-Position Installation Design
The 5TEM4 series air handlers incorporate a 4-way convertible cabinet design, allowing installation in upflow, downflow, horizontal left, or horizontal right configurations. This installation flexibility allows the unit to be installed in closets, basements, crawlspaces, utility rooms, or attic spaces depending on the building layout and HVAC system design.

Durable Insulated Cabinet Construction
The cabinet features galvanized metal construction with captured foil-faced insulation rated at R-4.2. This design helps improve system efficiency while minimizing cabinet condensation and operational noise. The cabinet is engineered to maintain 2% or less air leakage, supporting consistent airflow and overall HVAC performance.

Draw-Through Airflow Design with Horizontal Drain Pan
The air handler utilizes a draw-through airflow configuration that promotes consistent air movement across the indoor coil for efficient heat transfer. A factory-installed horizontal drain pan with a 3/4-inch NPT condensate connection provides reliable condensate drainage during cooling operation.

Electric Heat Compatibility for Supplemental Heating
The 5TEM4B03AC31SA supports field-installed electric resistance heater kits from the Trane BAYHTR series, allowing optional supplemental electric heating when paired with heat pump systems or used in electric heat applications. Multiple heater capacities are available to accommodate specific installation requirements.

Compact Cabinet Design for Flexible Installation
The unit features cabinet dimensions of approximately 46.8 in. H × 18.5 in. W × 21.1 in. D, providing a compact footprint suitable for typical residential mechanical spaces while maintaining sufficient airflow capacity for efficient HVAC operation.

Engineered for Reliable Residential HVAC Performance
Ideal for small-to-medium residential HVAC systems, the Trane 5TEM4B03AC31SA air handler delivers dependable airflow performance, durable coil construction, and flexible installation capability in a compact indoor platform designed to provide efficient comfort and long-term reliability.