Trane A801X120DM5SB Gas Furnace 80 Percent Afue Single Stage 120000 Btu/h Input Upflow Horizontal

Product Description

The Trane A801X120DM5SB is a single-stage, induced-draft gas furnace rated at 80 percent AFUE with a 120,000 BTU/h heating input capacity. It operates on a 24-volt control system and delivers up to 2,000 nominal CFM of airflow through a 9-tap CTM blower motor configuration. The cabinet measures 24.5 inches wide, 28.75 inches deep, and 34 inches tall, making it suitable for installations where cabinet footprint is a design constraint. This furnace is installed by licensed HVAC technicians in residential and light-commercial forced-air heating applications.

The A801X120DM5SB supports multiple installation orientations, including upflow, horizontal left, horizontal right, and downflow (UP/HL/HR/DN poise), giving installers flexibility across a range of job conditions. It is designed for use in split-system configurations paired with a compatible evaporator coil and condensing unit. The induced-draft combustion system and single-stage gas valve make this a straightforward replacement or new-construction unit for standard residential heating loads requiring higher input capacity.

Key Features

• 80 percent AFUE single-stage induced-draft operation for reliable heating performance
• 120,000 BTU/h heating input capacity suited for larger residential or light-commercial spaces
• Multi-poise installation support: upflow, horizontal left, horizontal right, and downflow
• 9-tap CTM blower motor allows field adjustment of airflow to match duct system requirements
• 2,000 nominal CFM output supports larger duct systems and higher static pressure designs
• 24-volt control circuit compatible with standard thermostat and zone control wiring
• 24.5-inch cabinet width fits common residential equipment closet and utility room openings

Compatibility

Designed as an OEM-style replacement or new-installation gas furnace for residential forced-air heating systems requiring an 80 percent AFUE, single-stage, induced-draft unit with a 24.5-inch cabinet width.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the current edition of the International Fuel Gas Code. Shut off the gas supply and disconnect electrical power at the breaker before beginning any work. Verify flue venting meets local code for 80 percent induced-draft appliances before commissioning. Do not attempt to convert gas type or alter the heat exchanger without factory-authorized guidance.

Technical Specifications

• AFUE: 80 percent
• Heating Stages: Single Stage
• Heating Input Capacity: 120,000 BTU/h
• Nominal Airflow: 2,000 CFM
• Blower Motor Taps: 9-tap CTM
• Control Voltage: 24 volts
• Cabinet Width: 24.5 inches
• Cabinet Depth: 28.75 inches
• Cabinet Height: 34 inches
• Installation Orientations: Upflow, Horizontal Left, Horizontal Right, Downflow
• Combustion System: Induced Draft

Standard Information

• Brand: Trane
• Manufacturer Part Number: A801X120DM5SB