Trane 4 Ton 14.3 SEER2 Commercial Heat Pump Condenser | 208/230V 3 Phase - R454B - Single Stage

Reliable Year-Round Comfort 4-Ton Commercial Heat Pump for Small Commercial Applications with 208/230V Three-Phase Power

The Trane 5TWA4048A3 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 5TWA4048A3 is designed for 208/230V, 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® Scroll Compressor – Uses a single-stage ClimaTuff® scroll compressor for dependable heat pump operation.
• R-454B Refrigerant – Uses R-454B refrigerant in the outdoor unit as part of Trane's current split-system heat pump platform.
• 208/230V Three-Phase Power – Designed for 208/230V, 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 with two rows and 24 fins per inch for the 5TWA4048A3.
• Commercial Installation Accessories – Supports optional accessories for mounting, sound reduction, seacoast exposure, low-ambient applications, service access, and compressor protection.

Single-Stage Heat Pump Heating

The 5TWA4048A3 is a split-system heat pump designed to provide both heating and cooling operation. It uses a single-stage ClimaTuff® scroll compressor and expansion-valve refrigerant control. Trane's published AHRI rating conditions include high-temperature heating at 47°F outdoor dry-bulb temperature and low-temperature heating at 17°F outdoor dry-bulb temperature. The system is designed to be matched with compatible indoor equipment to provide the complete heat pump system.

48,000 BTU/h Cooling Capacity

The 5TWA4048A3 provides 48,000 BTU/h of nominal cooling capacity. The outdoor unit uses a single-stage ClimaTuff® scroll compressor, a direct-drive propeller outdoor fan, and a Spine Fin™ outdoor coil. The published A-weighted sound power level for the 5TWA4048A3 is 74 dB(A), rated in accordance with AHRI Standard 270.

R-454B Refrigerant & Efficient System Operation

The 5TWA4048A3 uses R-454B refrigerant and an expansion valve for refrigerant control. The outdoor unit contains approximately 8 lb. 9 oz. of factory-supplied R-454B refrigerant. Trane specifies 10°F subcooling as the charging specification. The factory charge is based on the outdoor unit, 10 feet of tested connecting line, and the smallest rated indoor evaporative coil match; proper system charge should always be verified according to the unit nameplate and applicable charging procedure.

Three-Phase Split System Installation Design

The 5TWA4048A3 is configured for 208/230V, three-phase, 60 Hz power. The published minimum branch circuit ampacity is 18.1 amps, with a maximum branch circuit protection rating of 30 amps. The outdoor unit uses a 7/8-inch O.D. gas connection and a 5/16-inch O.D. liquid connection. Trane identifies 25-, 30-, 35-, and 50-foot line sets as available options and provides additional refrigerant piping guidance for long-line and specialty applications.

Controls & Comfort

The 5TWA4048A3 uses single-stage heat pump operation with a direct-drive, single-speed outdoor fan and expansion-valve refrigerant control. The optional TAYASCT501A anti-short-cycle timer is a solid-state timing device that prevents compressor recycling until five minutes have elapsed after a satisfied call or power interruption. Trane identifies this accessory for applications including commercial installations and long line sets.

Small Commercial Applications

The Trane 5TWA4048A3 is part of the 5TWA4 three-phase single-stage heat pump family covering 3- to 5-ton nominal capacities. With its 48,000 BTU/h nominal cooling capacity and 208/230V three-phase electrical configuration, the 5TWA4048A3 is designed for compatible small commercial applications requiring split-system heat pump operation.

Service & Maintenance

The 5TWA4048A3 provides optional accessories intended to address specific installation and service requirements. Available options include the TAYASCT501A anti-short-cycle timer, BAYISLT101 rubber isolator kit, BAYECMT004 extreme-condition mounting kit, BAYSDEN004 sound enclosure, BAYSEAC001 seacoast kit, BAYLOAM103 low-ambient kit, and TAYSVPANL0046AA service valve panel cover. The rubber isolator kit is designed to minimize sound transmission through the mounting structure, while the extreme-condition mounting kit is intended for high-wind areas and commercial rooftop installations.

Warranty

The available Trane product and submittal documentation does not specify warranty terms for the 5TWA4048A3. Applicable warranty coverage should be confirmed using the current Trane warranty documentation for the equipment, installation, and application.

Recommended Accessories

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

Reliable Year-Round Comfort with the Trane 5TWA4048A3

Experience dependable year-round heating and cooling with the Trane 5TWA4048A3 4-ton commercial split heat pump condenser. Combining a single-stage ClimaTuff® scroll compressor, Spine Fin™ outdoor coil, R-454B refrigerant, expansion-valve refrigerant control, and 208/230V three-phase electrical configuration, the 5TWA4048A3 provides a flexible heat pump solution for compatible small commercial applications.