Trane A952V040BU3SA Variable Speed Direct Vent Condensing Gas Furnace 40000 Btu 96% Afue Upflow Horizontal

Product Description

The Trane A952V040BU3SA is a variable speed, direct vent, condensing gas furnace rated at 40,000 BTU/h output with a 96% AFUE efficiency rating. It is designed for upflow installation and is convertible to horizontal left or horizontal right orientation, giving installers flexibility in tight or unconventional mechanical spaces. The variable speed draft inducer motor improves combustion efficiency and reduces energy consumption compared to single-speed alternatives. This unit is intended for residential central heating applications and is installed by licensed HVAC technicians as part of a split or matched system configuration.

The A952V040BU3SA fits standard residential installations where high-efficiency heating is required. The 96% AFUE rating qualifies it for energy-efficient upgrade applications. Its upflow and convertible horizontal orientation makes it suitable for both closet and attic installations, as well as crawl space or basement setups where horizontal discharge is preferred. Cabinet width falls within industry-standard dimensions, allowing compatibility with standard evaporator coil and accessory configurations. This furnace operates on natural gas and can be converted to LP gas per manufacturer guidelines.

Key Features

• 96% AFUE condensing efficiency for reduced fuel consumption in residential heating systems
• Variable speed draft inducer motor for improved combustion control and quieter operation
• 40,000 BTU/h heating capacity suited for small to medium residential loads
• Upflow configuration with field-convertible horizontal left and horizontal right orientation
• Direct vent design supports sealed combustion using outdoor combustion air
• Industry-standard cabinet width for compatibility with matched coils and accessories

Compatibility

Designed as a direct vent condensing gas furnace for residential upflow and horizontal installations. Compatible with industry-standard evaporator coils and HVAC accessories per cabinet width specifications. Natural gas unit convertible to LP gas. Consult Trane product documentation for approved matched system combinations.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local codes, ANSI Z21.47, and the manufacturer installation, operation, and maintenance manual. Shut off gas supply and disconnect electrical power before servicing or making connections. This is a direct vent appliance requiring a sealed two-pipe combustion air and flue system — do not connect to a common B-vent or single-pipe system. Horizontal conversion must follow the factory-specified conversion procedure outlined in the installation manual before startup.

Technical Specifications

• Heating Capacity: 40,000 BTU/h
• AFUE: 96%
• Venting Type: Direct Vent (Two-Pipe)
• Blower Motor Type: Variable Speed
• Installation Orientation: Upflow, Convertible to Horizontal Left or Horizontal Right
• Fuel Type: Natural Gas (LP convertible)
• Certification: ANSI Z21.47 / CSA 2.3

Standard Information

• Brand: Trane
• Manufacturer Part Number: A952V040BU3SA