Trane A952V120DD5SB Two Stage Condensing Gas Furnace 120000 Btu/h 95 Afue Variable Speed Downflow

Product Description

The Trane A952V120DD5SB is a two-stage, condensing gas furnace rated at 120,000 BTU/h input capacity and 95% AFUE efficiency. It is configured for downflow or horizontal installation, making it suitable for applications where supply air is delivered downward into a crawl space or basement plenum. A variable-speed ECM blower motor modulates airflow to match heating demand, reducing energy consumption and improving comfort during both first-stage and second-stage firing. Licensed HVAC technicians install and commission this unit as part of a central forced-air heating system in residential or light-commercial applications.

The A952V120DD5SB is intended for downflow installations and can also be configured for horizontal operation. Its two-stage gas valve allows the furnace to fire at a reduced capacity during mild weather and ramp to full capacity during peak heating demand. This helps reduce short-cycling and maintain steadier indoor temperatures. The 95% AFUE rating qualifies this unit in many energy-efficiency programs and meets requirements in regions with minimum efficiency mandates for condensing equipment.

Key Features

• 120,000 BTU/h input capacity with two-stage firing for demand-matched heat output
• 95% AFUE condensing efficiency for reduced fuel consumption
• Variable-speed ECM blower motor for quiet, energy-efficient airflow
• Downflow and horizontal configuration capability for flexible installation layouts
• Designed for natural gas operation with LP conversion availability per local requirements

Compatibility

Designed as an OEM-style replacement or new-installation furnace for residential and light-commercial downflow or horizontal forced-air heating systems requiring a 120,000 BTU/h two-stage condensing gas furnace.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes, the IFGC, and the manufacturer installation instructions. Shut off gas supply and disconnect electrical power before servicing or replacing this unit. Condensing furnaces require a dedicated PVC condensate drain line and a two-pipe direct-vent configuration; do not connect to a B-vent or single-pipe venting system. Verify that the supply and return duct system is properly sized for the airflow requirements of a 120,000 BTU/h unit before commissioning.

Technical Specifications

• Heating Input Capacity: 120,000 BTU/h
• AFUE Efficiency: 95%
• Stage Configuration: Two Stage
• Motor Type: Variable Speed ECM
• Installation Configuration: Downflow / Horizontal
• Fuel Type: Natural Gas (LP convertible)
• Venting Type: Direct Vent (Two Pipe)

Standard Information

• Brand: Trane
• Manufacturer Part Number: A952V120DD5SB