Trane 5TEM4B02ACS21SA 24,000 BTU 2 Ton Multi Speed Multi Position Air Handler

Trane 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 Trane’s 5TEM4 series platform, this air handler combines a constant-torque ECM blower motor, all-aluminum plate-fin indoor coil, and insulated galvanized cabinet construction engineered for dependable heating and cooling operation across a wide range of installation environments.

Constant-Torque ECM Blower Motor Performance
The 5TEM4B02AC21SA utilizes a direct-drive centrifugal blower powered by a constant-torque ECM motor designed to provide efficient airflow and consistent comfort. The blower operates at approximately 1050 RPM and delivers nominal airflow of approximately 600 CFM, supporting proper air distribution and efficient system performance in smaller residential HVAC applications.

2 Ton Air Handler Capacity Platform
Model nomenclature identifies this unit as part of the 2-ton air handler capacity platform, supporting nominal system capacities ranging from 18,000 to 24,000 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 designed for R-454B refrigerant operation.

All-Aluminum Plate-Fin Indoor Coil
The indoor coil features a durable all-aluminum plate-fin construction designed to provide reliable heat transfer and corrosion resistance. The coil is engineered for R-454B refrigerant systems and utilizes a factory-installed thermal expansion valve (TXV) to regulate refrigerant flow and maintain efficient 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 flexible design allows installation in closets, basements, crawlspaces, utility rooms, and attic spaces, helping contractors adapt the unit to various building layouts and HVAC configurations.

Durable Insulated Cabinet Construction
The cabinet features galvanized steel construction with captured foil-faced insulation rated at R-4.2, improving system efficiency while helping reduce condensation and operational noise. The cabinet is engineered for 2% or less air leakage, supporting consistent airflow and overall HVAC system performance.

Draw-Through Airflow Design with Horizontal Drain Pan
The air handler utilizes a draw-through airflow configuration, which promotes uniform airflow 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 removal during cooling operation.

Electric Heat Compatibility for Supplemental Heating
The 5TEM4B02AC21SA supports field-installed electric heater kits from the Trane BAYHTR series, allowing optional electric resistance heating when paired with heat pump systems or used in electric heat applications. Available heater capacities range from approximately 4 kW to 10 kW depending on installation requirements.

Compact Cabinet Design for Flexible Installation
The air handler features cabinet dimensions of approximately 45.0 in. H × 18.5 in. W × 21.1 in. D, making it suitable for installation in tighter mechanical spaces while maintaining adequate airflow capacity for residential HVAC systems.

Engineered for Reliable Residential HVAC Performance
Ideal for small to medium residential HVAC systems, the Trane 5TEM4B02AC21SA air handler delivers dependable airflow performance, corrosion-resistant coil construction, and flexible multi-position installation capability in a compact indoor platform designed for efficient comfort and long-term reliability.