Trane S8X1A040M3PSCA 40,000 BTU 80% Efficiency Single Stage Gas Furnace

Trane S8X1A040M3PSC – 40,000 BTU Single-Stage 80% AFUE Upflow / Downflow / Horizontal Gas Furnace

Deliver reliable and efficient residential heating with the Trane S8X1A040M3PSC, a 40,000 BTU single-stage gas furnace designed for consistent performance, durable construction, and flexible installation. As part of Trane’s S-Series platform, this model features a heavy-duty aluminized steel heat exchanger, a 9-speed constant torque ECM blower motor, and an integrated control system engineered for dependable operation and simplified service diagnostics.

Single-Stage Gas Heating Performance

The S8X1A040M3PSC utilizes a single-stage gas heating system that delivers a full input of 40,000 BTU with an approximate heating capacity of 32,300 BTU. This design provides steady, reliable heat output suited for consistent residential comfort demands.

80% AFUE Non-Condensing Efficiency

With an AFUE rating of 80%, this furnace offers dependable, standard-efficiency heating performance. It is designed as a non-condensing system that balances installation simplicity with cost-effective operation for residential applications.

9-Speed Constant Torque ECM Blower Motor

Airflow is delivered through a direct-drive blower assembly powered by a 9-speed constant torque ECM motor rated at approximately 1/2 horsepower and operating around 1050 RPM. This system provides consistent airflow across a range of static pressures while maintaining efficient electrical consumption.

Durable Aluminized Steel Heat Exchanger

The furnace features a heavy gauge tubular aluminized steel heat exchanger designed for durability and efficient heat transfer. This construction supports long-term reliability and consistent heating performance through repeated operating cycles.

Multiport Inshot Burners with Silicon Nitride Ignition

The heating system includes multiport inshot burners engineered for quiet and efficient combustion. Ignition is provided by a 120V silicon nitride hot surface igniter, eliminating the need for a standing pilot and improving ignition reliability. The system uses two burners to distribute heat effectively.

Integrated Furnace Control with Diagnostic Capabilities

An integrated solid-state control system continuously monitors furnace operation, including flame presence and safety limits. The control includes built-in self-diagnostics and stores recent fault codes, simplifying troubleshooting and ongoing system maintenance.

Flexible Multi-Position Installation Design

The S8X1A040M3PSC features a four-way multi-poise cabinet supporting upflow, downflow, horizontal left, and horizontal right configurations. This flexibility allows installation in closets, basements, attics, or mechanical rooms depending on system requirements.

Compact Cabinet Design for Residential Applications

The unit utilizes a compact cabinet measuring approximately 34 inches high, 14.5 inches wide, and 28.75 inches deep. Its space-saving footprint allows installation in tighter spaces while maintaining compatibility with standard HVAC components and accessories.

Engineered for Reliable Residential Heating

Ideal for residential forced-air systems, the Trane S8X1A040M3PSC gas furnace combines single-stage heating performance, efficient ECM airflow technology, and durable construction in a non-condensing platform designed to deliver consistent comfort, dependable operation, and long-term reliability.