Trane A801X040AM3TD Gas Furnace Downflow Horizontal 80 Percent Afue Single Stage

Product Description

The Trane A801X040AM3TD is an 80 percent AFUE, single-stage, induced draft gas furnace in a downflow and horizontal configuration. This unit delivers reliable heating output in residential forced-air systems and is designed to be installed by licensed HVAC technicians. The model nomenclature identifies it as an 80 percent efficiency, premium induced draft furnace with a 14.5-inch cabinet width, single-stage heating, and a downflow and horizontal airflow orientation. It fits into applications where ductwork is routed beneath the unit or in horizontal installations such as attic or crawlspace setups.

This furnace is suited for residential downflow installations where the supply air exits from the bottom of the cabinet. The horizontal configuration also supports installations in confined spaces such as attics, closets, or utility rooms where vertical positioning is not possible. Licensed HVAC contractors handling gas-fired equipment are the typical installers for this unit in new construction and retrofit projects alike.

Key Features

• 80 percent AFUE efficiency rating for standard residential gas heating applications
• Single-stage heating operation for straightforward thermostat integration
• Induced draft combustion design for reliable venting performance
• Downflow and horizontal airflow configuration for flexible installation positioning
• 14.5-inch cabinet width suits installations in tighter mechanical spaces
• Premium 80 percent induced draft product classification within the Trane furnace lineup

Compatibility

Designed as an OEM-style replacement or new-installation furnace for residential gas-fired forced-air heating systems requiring a downflow or horizontal configuration with 80 percent AFUE efficiency.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the applicable International Fuel Gas Code (IFGC). Shut off gas supply and disconnect electrical power at the breaker before beginning any connection or service work. Venting must be configured to meet 80 percent induced draft requirements using approved vent materials and clearances. Do not attempt to convert airflow orientation or modify the gas valve without consulting manufacturer documentation.

Technical Specifications

• AFUE: 80 percent
• Heating Stages: Single Stage
• Combustion Design: Induced Draft
• Airflow Configuration: Downflow and Horizontal
• Cabinet Width: 14.5 inches
• Efficiency Tier: Premium 80 percent Induced Draft

Standard Information

• Brand: Trane
• Manufacturer Part Number: A801X040AM3TD