Trane 5TWR5018A1000A 1.5 Ton 18,000 BTU 15 SEER2 Heat Pump Outdoor Unit - R454B

Trane 5TWR5018A1000A – 1.5 Ton 15 SEER2 Single-Stage Split System Heat Pump

Deliver reliable year-round heating and cooling with the Trane 5TWR5018A1000A , a 1.5-ton single-stage split system heat pump designed for efficient residential comfort and dependable outdoor operation. As part of Trane’s 5TWR50 series heat pump platform , this R-454B system combines a Climatuff® scroll compressor, Spine Fin™ all-aluminum coil, and durable weather-resistant cabinet construction for long-term performance.

Single-Stage Climatuff® Scroll Compressor Performance
The 5TWR5018A1000A utilizes a Climatuff® single-stage scroll compressor (1 – 1 configuration) designed for reliable heating and cooling operation. The compressor includes internal over-temperature and pressure protection along with a centrifugal oil pump to support smooth operation, reduced vibration, and long system life.

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 Air-Source Unitary Air-Conditioner Equipment Certification Program (Standard 210/240) and rated according to AHRI Standard 270 for sound performance .

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

Spine Fin™ All-Aluminum Outdoor Coil
The condenser coil incorporates Trane’s patented Spine Fin™ all-aluminum coil design with 1 row at 24 fins per inch and 18.75 sq. ft. of face area . This coil construction enhances heat transfer efficiency while offering strong corrosion resistance. Louvered cabinet panels protect the coil on all sides while maintaining proper airflow through the unit.

R-454B Refrigerant & Charging Specifications
The 5TWR5018A1000A utilizes R-454B refrigerant with an approximate factory charge of 4 lb, 12 oz . Standard refrigerant connections include 3/4" O.D. gas and 5/16" O.D. liquid lines , and the system uses a TXV expansion valve refrigerant control with a 9°F subcooling charging specification for proper system setup and efficiency.

Quiet Operation with AHRI-Rated Sound Performance
The 5TWR5018A model is rated at approximately 71 dB(A) A-weighted sound power level under AHRI Standard 270 testing conditions, supporting reliable heating and cooling operation with controlled outdoor sound levels suitable for residential environments.

Durable Cabinet Construction for Outdoor Installation
The cabinet is constructed from heavy-gauge galvanized steel with a weather-resistant powder-coated finish . Exterior panels are tested to withstand 1,000 hours of salt spray exposure , providing long-term corrosion resistance and durability in outdoor installations.

Operating Range & Low Ambient Cooling Options
As manufactured, the system supports cooling operation down to 55°F outdoor ambient . With optional evaporator defrost controls and low-ambient kits, cooling operation can extend to 40°F, 30°F with TXV, or as low as 20°F using the BAYLOAM107A low ambient kit.

Engineered for Reliable Residential Heating and Cooling
Ideal for smaller homes and light residential heating and cooling loads, the Trane 5TWR5018A1000A heat pump delivers dependable 1.5-ton single-stage performance , Spine Fin™ coil durability, and efficient R-454B refrigerant operation in a compact outdoor heat pump platform built for consistent comfort and long-term reliability.