Trane 3 Ton 15 SEER2 / 11.7 EER2 Commercial Split Air Conditioning System | 208/230V 3 Phase - R454B - Two Stage

Reliable 3-Ton Commercial Split Air Conditioner for Light Commercial Buildings with Flexible Installation

The Trane 5TTA4036A3 / 5TAM5C03AC21 split system is a nominal 3-ton commercial split air conditioner designed to provide dependable cooling for small commercial spaces, retail establishments, offices, and other light commercial applications. Combining the Trane 5TTA4036A3 outdoor condensing unit with the 5TAM5C03AC21SB indoor multi-speed air handler, this split system provides a flexible installation configuration, dependable cooling performance, and practical serviceability for commercial comfort applications. The outdoor unit features a Climatuff™ compressor, a Spine Fin™ condenser coil, and a durable cabinet, while the indoor air handler uses a constant-torque ECM blower motor and an all-aluminum evaporator coil to support efficient air distribution.

Key Benefits

• Single-Stage Cooling Performance – Provides dependable cooling for appropriately sized light commercial spaces with a straightforward single-stage operating design.
• Climatuff™ Compressor – Provides the outdoor unit's primary refrigeration compression for reliable cooling operation.
• Multi-Speed Indoor Air Handler – Offers selectable blower speeds to accommodate system airflow requirements and support indoor comfort.
• Flexible Installation Configuration – The separate indoor and outdoor components allow equipment placement to be planned around building layout and installation requirements.
• Four-Way Air Handler Configuration – Supports upflow, downflow, and horizontal installation orientations when installed according to the manufacturer's instructions.
• Durable Outdoor Construction – Galvanized steel louvered panels, baked-on powder paint, and a DuraTuff™ basepan help protect the outdoor equipment against everyday environmental exposure.
• 24-Volt System Controls – Supports conventional low-voltage control integration with compatible system controls.
• Serviceable Indoor Components – The air handler's blower and coil slide-deck design helps facilitate component access during service and maintenance.

Single-Stage Cooling – Dependable Commercial Comfort

The Trane 5TTA4036A3 / 5TAM5C03AC21SB split system combines a nominal 36,000 BTU/h, 3-ton outdoor air conditioner with a multi-speed indoor air handler rated for a 24,000–36,000 BTU/h capacity range. The outdoor unit provides single-stage cooling, while the indoor air handler distributes conditioned air through a compatible duct system. This configuration is intended to deliver dependable cooling for properly sized light commercial applications. The system uses R-454B refrigerant, and the final rated performance depends on the approved matched equipment combination and installation conditions.

Climatuff™ Compressor and Spine Fin™ Condenser Coil – Cooling Performance

The Trane 5TTA4036A3 outdoor condensing unit incorporates a Climatuff™ compressor and a Spine Fin™ condenser coil. These components form the core of the refrigeration system, transferring heat from the indoor space to the outdoor environment during cooling operation. The single-stage compressor design provides a straightforward approach to cooling control, while the condenser coil supports outdoor heat rejection. Actual system capacity and efficiency ratings depend on the complete matched system configuration and applicable manufacturer performance data.

Multi-Speed ECM Blower – Airflow and Efficiency

The Trane 5TAM5C03AC21SB indoor air handler features a direct-drive, constant-torque electronically commutated motor (ECM) with multiple selectable blower speeds. Its nominal airflow rating is 1,000 CFM, subject to the external static pressure, selected speed tap, duct configuration, and installation conditions. The all-aluminum plate-fin evaporator coil and thermostatic expansion valve (TXV) support refrigerant heat transfer and control. The multi-speed blower provides flexibility for setting airflow to meet the requirements of the matched cooling system and ductwork.

Split System Design – Flexible Equipment Placement

The split system configuration separates the outdoor condensing unit from the indoor air handler, allowing the equipment to be positioned according to building layout, duct routing, service clearances, and installation requirements. The 5TTA4036A3 outdoor unit measures approximately 33 inches high by 30 inches wide by 33 inches deep, with an estimated unit weight of 156 pounds. The 5TAM5C03AC21SB indoor air handler measures approximately 55.8 inches high by 21.3 inches wide by 21.8 inches deep and weighs approximately 150 pounds. The indoor unit supports four-way installation configurations, subject to the manufacturer's installation instructions. Refrigerant piping, electrical service, condensate drainage, and equipment clearances must comply with the applicable installation documentation and local codes.

24-Volt Controls – Practical Comfort Management

The Trane 5TAM5C03AC21SB air handler uses conventional 24-volt system controls. Compatible thermostat and control selections should be based on the requirements of the matched outdoor unit, indoor air handler, and any installed electric heating accessories. The indoor blower's selectable speed settings allow the installer to configure airflow for the application. The system uses single-stage cooling and does not provide variable-capacity compressor modulation. Appropriate thermostat selection, airflow setup, and commissioning are important for achieving the intended cooling performance.

Light Commercial Applications – Adaptable Cooling for Business Spaces

The Trane 5TTA4036A3 / 5TAM5C03AC21SB is suitable for properly sized light commercial applications such as small offices, retail spaces, and similar buildings requiring ducted cooling. Its nominal 3-ton capacity, separate indoor and outdoor equipment, and multi-position air handler provide flexibility for projects where a split-system arrangement is appropriate. Final equipment selection should account for the building's calculated cooling load, ventilation requirements, duct design, electrical supply, and local operating conditions.

Service & Maintenance – Accessible Components and Durable Construction

The outdoor unit incorporates full-sided galvanized steel louvered panels, baked-on powder paint, a DuraTuff™ basepan, and a Spine Fin™ condenser coil. These construction features are designed to support equipment durability. The indoor air handler incorporates a blower with an integrated slide deck and an aluminum coil with a slide-deck design to facilitate component removal and service access. Routine maintenance should include inspection and cleaning of the indoor and outdoor coils as appropriate, filter replacement or cleaning, condensate drain inspection, electrical connection checks, and verification of refrigerant-system operation by a qualified HVAC technician. Required service clearances and maintenance procedures must follow the manufacturer's documentation.

Warranty

Trane's published small split-system commercial product information lists a 1-year parts warranty and a 5-year compressor warranty. Actual warranty coverage, exclusions, and applicable terms depend on the specific equipment, purchase channel, installation, jurisdiction, and warranty documentation supplied with the product. Confirm the applicable warranty for the exact model and installation before purchase. Do not assume that residential registered-warranty extensions apply to a commercial installation.

Recommended Accessories

• Compatible 24-Volt Thermostat or Control – Select according to the matched system's control requirements.
• Outdoor Equipment Pad or Approved Mounting Support – Provides a suitable support surface for the outdoor condensing unit.
• Electrical Disconnect and Overcurrent Protection – Select and size according to the equipment nameplate, installation instructions, and applicable electrical codes.
• Compatible Refrigerant Line Set and Insulation – Select the correct line diameters and lengths according to the approved equipment combination and installation requirements.
• Optional Outdoor Operating Accessories – Available options for compatible Trane small split systems include a crankcase heater, rubber isolators, a low-ambient kit, and an extreme-conditions mounting kit, where approved for the specific model.

Dependable Light Commercial Cooling with the Trane 5TTA4036A3 / 5TAM5C03AC21SB

Experience dependable ducted cooling with the Trane 5TTA4036A3 / 5TAM5C03AC21SB split air conditioning system. Combining a 3-ton, single-stage outdoor condensing unit featuring a Climatuff™ compressor and Spine Fin™ condenser coil with a multi-speed indoor air handler featuring a constant-torque ECM blower motor and an all-aluminum evaporator coil, this system provides a flexible cooling solution for appropriately sized light commercial spaces.