Trane 5TWX5018A1000A 1.5 Ton 18,000 BTU 15 SEER2 Split System Heat Pump Outdoor Unit w/ WeatherGuard Top- R454B

Trane 5TWX5018A1000A – 18,000 BTU 1.5 Ton 15 SEER2 Single-Stage Split System Heat Pump

Deliver dependable year-round comfort with the Trane 5TWX5018A1000A , a 1.5-ton single-stage split system heat pump engineered for efficient heating and cooling performance in residential applications. As part of Trane’s 5TWX50 series heat pump platform , this R-454B system integrates a Climatuff® scroll compressor, Spine Fin™ outdoor coil, and durable weather-resistant cabinet construction to provide reliable comfort and long-term durability.

Single-Stage Climatuff® Scroll Compressor Performance
The 5TWX5018A1000A utilizes a Climatuff® scroll compressor with a single-stage configuration (1 – 1) designed for smooth and reliable heating and cooling operation. The compressor incorporates internal over-temperature and pressure protection along with a centrifugal oil pump design to support dependable startup, reduced vibration, and consistent performance over time.

1.5 Ton Heating & Cooling Capacity Platform
Model nomenclature identifies this unit as a 1.5-ton heat pump system (18 = 18,000 BTU nominal capacity) operating on 208/230V, 1-phase, 60 Hz electrical service . The system is certified under the AHRI Unitary Air-Conditioner Equipment Certification Program (Standard 210/240) and rated for sound performance per AHRI Standard 270 .

Direct-Drive Outdoor Fan System
The outdoor fan assembly features a 23-inch propeller blade driven by a direct-drive single-speed motor (1/8 HP) operating at approximately 850 RPM . The fan delivers approximately 2,980 CFM airflow at 0.0 in. w.g. , supporting efficient heat transfer and condenser performance during both heating and cooling operation.

Spine Fin™ All-Aluminum Outdoor Coil
The condenser coil incorporates Trane’s patented Spine Fin™ all-aluminum design with 1 row at 24 fins per inch and 18.75 sq. ft. of coil face area . This coil configuration improves heat transfer efficiency while offering corrosion resistance and long service life. Louvered cabinet panels protect the coil on all sides while allowing unrestricted airflow.

R-454B Refrigerant & Charging Specifications
The 5TWX5018A1000A operates with R-454B refrigerant and includes an approximate factory charge of 4 lb, 12 oz . Standard line set connections include 3/4" O.D. gas and 5/16" O.D. liquid lines , and the system uses a thermal expansion valve (TXV) refrigerant control with a 9°F subcooling charging specification .

Quiet Operation with AHRI-Rated Sound Performance
Designed for controlled outdoor sound levels, the 5TWX5018A heat pump carries a 71 dB(A) A-weighted sound power rating under AHRI Standard 270 test conditions, helping maintain quiet operation in residential environments.

Durable Cabinet Construction for Outdoor Installation
The outdoor cabinet is built from heavy-gauge galvanized steel with a weather-resistant powder-paint finish . Panels are engineered for outdoor exposure and tested to withstand 1,000 hours of salt-spray corrosion testing , ensuring long-term durability in demanding environments.

Operating Range & Low Ambient Cooling Options
As manufactured, the system provides cooling operation down to 55°F outdoor ambient . Optional accessories such as evaporator defrost controls and low ambient kits can extend cooling operation to 40°F, 30°F (with TXV), or as low as 20°F depending on configuration.

Engineered for Reliable Year-Round Residential Comfort
Ideal for smaller homes and light residential heating and cooling loads, the Trane 5TWX5018A1000A heat pump delivers dependable single-stage performance, durable Spine Fin™ coil construction, and efficient R-454B operation in a compact 1.5-ton split system platform built for consistent comfort and long-term reliability.