Trane A801X040BM2SA Single Stage Gas Furnace 40000 Btu/h 80% Afue 17.5 Inch Width

Product Description

The Trane A801X040BM2SA is a single-stage, 80% AFUE induced-draft gas furnace designed for residential forced-air heating applications. Rated at 40,000 BTU/h input capacity, it operates on a 120/1/60 electrical supply with 24-volt low-voltage control, making it compatible with standard residential thermostat wiring. The unit is configured for four-way airflow, giving installers flexibility in upflow, downflow, or horizontal orientations to suit a wide range of installation environments. Licensed HVAC technicians install and service this furnace as part of a split-system or standalone heating setup.

This furnace is sized for smaller residential spaces where a moderate heating capacity meets the load requirements. The 17.5-inch cabinet width fits into standard mechanical closets, alcoves, and utility rooms. With a CTM (Communicating Thermostat Module) designation and 24-volt control architecture, it integrates into both conventional and communicating system configurations. It is appropriate for new construction and replacement installations in single-family homes and light residential buildings.

Key Features

• 80% AFUE single-stage induced-draft operation for reliable heating performance
• 40,000 BTU/h input capacity suited for smaller residential heating loads
• Four-way airflow configuration supports upflow, downflow, and horizontal installations
• 24-volt low-voltage control interface compatible with standard residential thermostats
• 17.5-inch cabinet width fits common residential mechanical spaces
• 120/1/60 electrical supply matches standard residential single-phase power

Compatibility

Designed as an OEM-style single-stage 80% AFUE gas furnace replacement or new installation unit for residential forced-air heating systems requiring a 17.5-inch wide cabinet with four-way airflow and 24-volt control.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes, the International Fuel Gas Code (IFGC), and the furnace manufacturer installation instructions. Disconnect all electrical power and shut off the gas supply at the service valve before beginning any service or installation work. Verify that the flue venting system is properly sized and free of obstructions before commissioning. Do not attempt to modify the gas valve, heat exchanger, or control wiring beyond the parameters specified in the installation manual.

Technical Specifications

• Heating Input Capacity: 40,000 BTU/h
• AFUE Rating: 80%
• Number of Heating Stages: 1 (Single Stage)
• Electrical Supply: 120/1/60 (120 volts, 1-phase, 60 Hz)
• Control Voltage: 24 volts
• Airflow Configuration: 4-Way (Upflow, Downflow, Horizontal)
• Cabinet Width: 17.5 inches
• Cabinet Depth: 28.75 inches
• Draft Type: Induced Draft

Standard Information

• Brand: Trane
• Manufacturer Part Number: A801X040BM2SA