Trane A801X040BM2SD Gas Furnace 40000 Btu/h 80 Afue Multi-speed Multi-positional Residential

Product Description

The Trane A801X040BM2SD is a single-stage, multi-speed natural gas furnace rated at 40,000 BTU/h input with 80% AFUE efficiency. Part of the RunTru by Trane RT Series, this unit is designed for residential forced-air heating systems where reliable, straightforward performance is the priority. The multi-positional cabinet allows installation in upflow, horizontal left, horizontal right, or downflow configurations, giving HVAC technicians flexibility across a wide range of residential applications. The 17.5-inch cabinet width fits standard residential equipment closets and alcoves. A licensed HVAC professional should handle all installation and commissioning work in accordance with local mechanical codes and manufacturer guidelines.

The A801X040BM2SD is suited for residential applications where an entry-level 80% AFUE gas furnace meets local energy code minimums. The multi-positional design supports installs in basements, closets, utility rooms, attic spaces, and crawlspace horizontal configurations. The RT Series is positioned as a value-tier product within the Trane and RunTru by Trane lineup, making it a common choice for new-construction projects and straightforward replacements where a condensing furnace is not required or permitted by the existing venting infrastructure.

Key Features

• 40,000 BTU/h input capacity for residential heating loads
• 80% AFUE single-stage operation for standard-efficiency applications
• Multi-speed blower motor accommodates varied airflow requirements
• Multi-positional cabinet supports upflow, downflow, and horizontal left or right installations
• 17.5-inch cabinet width fits common residential equipment spaces
• Part of the RunTru by Trane RT Series, designed for value-tier residential replacement and new-construction use

Compatibility

Designed for residential forced-air gas heating systems requiring an 80% AFUE single-stage furnace in a multi-positional configuration. Compatible system pairings and coil matchups should be confirmed using Trane or RunTru by Trane product documentation for the RT Series prior to installation.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with the National Fuel Gas Code (NFPA 54), local mechanical codes, and the manufacturer installation, operation, and maintenance manual for the A801X series. Disconnect electrical power and shut off the gas supply at the service valve before beginning any service or installation work. This furnace requires B-vent or Category I venting — verify that existing vent sizing, material, and routing meet current code requirements before reusing existing flue infrastructure. If installed in a basement, confined space, or excavated area, consult local code and the gas supplier regarding combustion air requirements and gas leak detection devices.

Technical Specifications

• Input Capacity: 40,000 BTU/h
• AFUE: 80%
• Fuel Type: Natural gas
• Stages: Single stage
• Blower Motor: Multi-speed
• Cabinet Width: 17.5 inches
• Installation Positions: Upflow, Downflow, Horizontal Left, Horizontal Right
• Series: RunTru by Trane RT Series

Standard Information

• Brand: Trane
• Manufacturer Part Number: A801X040BM2SD