Trane 5TXCA001AS3HC Cased Evaporator Coil 18000-24000 Btu 1.5-2 Ton R-454B Multi-position

Product Description

The Trane 5TXCA001AS3HC is a cased aluminum A-coil evaporator designed for residential split-system air conditioners and heat pumps operating on R-454B refrigerant. Rated at 18,000 to 24,000 BTU/h (1.5 to 2 ton), this coil fits in the 14.5-inch A-cabinet and supports upflow, downflow, and horizontal installation orientations. It ships with a factory-installed non-bleed TXV and plate-fin aluminum construction for efficient heat transfer. Licensed HVAC technicians install this coil as the indoor evaporator section of a split system, mating it to a furnace, air handler, or dedicated cooling cabinet.

This coil is intended for residential split-system cooling and heat pump applications. Its multi-position design accommodates upflow, downflow, and horizontal installations, making it adaptable to a range of equipment room and closet configurations. The 14.5-inch cabinet width suits standard duct openings common in residential construction. It is designed for use with variable-speed and 2-speed outdoor models to support higher system efficiency ratings. Copper brazing joints at the refrigerant connections simplify field installation and refrigerant line set hookup.

Key Features

• Aluminum plate-fin coil construction for effective heat transfer and corrosion resistance
• Factory-installed non-bleed TXV sized for 1.5 to 2 ton capacity range
• R-454B compatible — an A2L low-GWP refrigerant required for newer split systems
• Multi-position installation: upflow, downflow, and horizontal configurations supported
• 14.5-inch cabinet width fits standard residential duct openings
• Factory pressure-washed and dried to reduce water blow-off and potential air-quality concerns at startup
• Compatible with 2-speed and variable-speed outdoor models for improved system efficiency

Compatibility

Designed for use with residential split-system air conditioners and heat pumps using R-454B refrigerant. Compatible with 2-speed and variable-speed outdoor models. Consult the Trane 5TXC series product data and the outdoor unit submittal for verified matched-system pairings before installation.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle A2L refrigerants, as R-454B is classified as mildly flammable. De-energize the system and recover any refrigerant in accordance with EPA Section 608 regulations before opening refrigerant circuits. Refrigerant connections are brazed using copper joints — follow local mechanical codes and manufacturer installation guides for brazing procedures and leak testing requirements. Confirm airflow direction and duct connection orientation before setting the coil, as incorrect positioning in multi-poise applications is not field-reversible without disassembly.