Trane 4 Ton 14.3 SEER2 Commercial Heat Pump Condenser | 460V 3 Phase - R454B - Single Stage

Reliable Year-Round Comfort 4-Ton Commercial Heat Pump for Small Commercial Applications with 460V Three-Phase Power

The Trane 5TWA4048A4 is a 4-ton commercial split heat pump condenser designed to provide dependable heating and cooling for compatible small commercial applications. Combining a 48,000 BTU/h nominal cooling capacity outdoor heat pump condenser with compatible indoor air-handling equipment, this split system helps deliver year-round comfort while providing flexible installation options. The 5TWA4048A4 is designed for 460V, three-phase, 60 Hz electrical service and uses R-454B refrigerant.

Key Benefits

• 48,000 BTU/h Nominal Cooling Capacity – Provides 4 tons of nominal cooling capacity for compatible commercial split-system applications.
• Heat Pump Heating – Provides both heating and cooling operation from a single outdoor heat pump system for year-round comfort.
• Single-Stage ClimaTuff® Compressor – Uses a ClimaTuff® compressor for dependable single-stage heat pump operation.
• R-454B Refrigerant – Uses R-454B refrigerant as part of Trane's current three-phase heat pump platform.
• 460V Three-Phase Power – Designed for 460V, three-phase, 60 Hz electrical service for compatible commercial installations.
• Flexible Split-System Configuration – Separates the outdoor heat pump condenser from the indoor equipment, allowing compatible indoor components to be selected for the installation.
• Spine Fin™ Outdoor Coil – Uses Trane's Spine Fin™ outdoor coil design for outdoor heat transfer.
• Quick-Sess™ Cabinet – Provides service access and refrigerant connections while maintaining full coil protection.

Single-Stage Heat Pump Heating

The 5TWA4048A4 is a split-system heat pump designed to provide both heating and cooling operation. It uses a single-stage ClimaTuff® compressor and expansion-valve refrigerant control. The 5TWA4 product family is rated at up to 8.1 HSPF2, depending on the matched system combination. Actual heating performance depends on the certified indoor and outdoor equipment combination.

48,000 BTU/h Cooling Capacity

The 5TWA4048A4 provides 48,000 BTU/h of nominal cooling capacity. The outdoor unit uses a ClimaTuff® compressor and Spine Fin™ outdoor coil. Its published A-weighted sound power level is 74 dB(A), rated in accordance with AHRI Standard 270-2008.

R-454B Refrigerant & Efficient System Operation

The 5TWA4048A4 uses R-454B refrigerant and expansion-valve refrigerant control. The 5TWA4 family is rated at up to 14.3 SEER2 and up to 8.1 HSPF2, depending on the model and matched indoor system. Actual efficiency ratings for a complete installation depend on the certified outdoor and indoor equipment combination.

460V Three-Phase Split System Design

The 5TWA4048A4 is configured for 460V, three-phase, 60 Hz power. Trane's product catalog lists a 48,000 BTU/h nominal cooling capacity, 50.5-inch height, 35-inch width, 37.9-inch depth, and 301-pound shipping weight for the 460V 5TWA4048A4 configuration. The model has a 10-amp minimum circuit ampacity and 15-amp maximum fuse rating. The service valve connections are 7/8-inch O.D. gas and 5/16-inch O.D. liquid.

Controls & Comfort

The 5TWA4048A4 uses single-stage heat pump operation with a ClimaTuff® compressor and expansion-valve refrigerant control. The 5TWA4 family is approved for Comfort-R™ mode, providing compatibility with matched Trane system configurations that support this comfort-control feature. Actual control functionality depends on the selected indoor equipment and system controls.

Small Commercial Applications

The Trane 5TWA4048A4 is part of the 5TWA4 single-stage, three-phase heat pump family covering 3- to 5-ton nominal capacities. With its 48,000 BTU/h nominal cooling capacity and 460V three-phase electrical configuration, the 5TWA4048A4 is designed for compatible small commercial applications requiring split-system heat pump operation.

Service & Maintenance

The 5TWA4 family incorporates a Quick-Sess™ cabinet designed to provide service access and refrigerant connections while maintaining full coil protection. The product family also features a DuraTuff™ base with fast complete drainage and weatherproof construction. Optional accessories are available for specific installation conditions, including mounting, low-ambient, seacoast, sound, and other application requirements.

Warranty

Warranty terms for the Trane 5TWA4048A4 should be confirmed using the current applicable Trane warranty documentation for the equipment, installation, and application. The manufacturer product documentation reviewed for this description does not establish a specific warranty term for this model.

Recommended Accessories

• Anti-Short Cycle Timer
• Rubber Isolator Kit
• Extreme Condition Mount Kit
• Sound Enclosure
• Seacoast Kit
• Low Ambient Kit

Reliable Year-Round Comfort with the Trane 5TWA4048A4

Experience dependable year-round heating and cooling with the Trane 5TWA4048A4 4-ton commercial split heat pump condenser. Combining a single-stage ClimaTuff® compressor, Spine Fin™ outdoor coil, R-454B refrigerant, expansion-valve refrigerant control, Quick-Sess™ service access, and 460V three-phase electrical configuration, the 5TWA4048A4 provides a flexible heat pump solution for compatible small commercial applications.