Trane S9V2B080U4VSBA 80,000 BTU Two-Stage 97% Efficiency Condensing 17.5" Gas Furnace

Trane S9V2B080U4VSBB – 80,000 BTU/H Two-Stage Condensing Gas Furnace

Deliver powerful, high-efficiency comfort with the Trane S9V2B080U4VSBB, an 80,000 BTU/H input two-stage condensing gas furnace designed for upflow installation and convertible to horizontal left or right configurations. Part of Trane’s S-Series platform, this model combines 97% AFUE performance, variable-speed airflow, and durable stainless steel heat exchanger construction for dependable residential heating.

Two-Stage High-Efficiency Heating Performance
The S9V2B080U4VSBB operates with two-stage gas heating to provide improved comfort and efficiency. It delivers 52,000 BTU/H input in first stage and 80,000 BTU/H input in second stage, with corresponding capacities of 51,050 BTU/H (ICS) and 76,700 BTU/H (ICS). With a 97.0% AFUE rating, this furnace maximizes fuel efficiency while reducing temperature swings and energy costs.

Variable-Speed ECM Blower for Precise Airflow
Equipped with a 3/4 HP variable-speed blower motor, the S9V2B080U4VSBB automatically adjusts airflow to match heating and cooling demands. The system is designed to provide at least 400 CFM per ton at 0.5 in. w.c. external static pressure, with setup airflow options down to 290 CFM/ton for enhanced duct system flexibility and comfort customization.

Durable Dual Stainless Steel Heat Exchangers
This furnace features a fired 409 stainless steel primary heat exchanger and a 29-4C™ stainless steel secondary heat exchanger. The secondary exchanger reclaims additional heat from exhaust gases that would otherwise be lost, improving efficiency and providing long-term corrosion resistance.

Flexible Multi-Poise Installation
Shipped ready for upflow installation, this model converts easily to horizontal left or right configurations without additional kits. The cabinet supports multiple venting options and improved vent length allowances, offering greater flexibility for tight basements, closets, and mechanical spaces.

The cabinet measures 34" H × 21" W × 28-3/4" D (uncrated) and weighs approximately 127 lbs net, providing a compact footprint compatible with industry-standard coils and accessories.

Advanced Integrated Furnace Control
The integrated furnace control features a digital display with setup, status, and diagnostic functions, storing the last six fault codes for simplified service. The control manages blower operation, flame sensing, gas valve staging, and safety monitoring for reliable performance.

Quiet, Safe & Reliable Operation
The S9V2B080U4VSBB includes multiport inshot burners (4 burners), a redundant two-stage gas valve, and a 120V silicon nitride hot surface igniter. The integrated system continuously monitors flame presence, pressure switches, and safety limits to ensure dependable operation.

Energy Star® Certified Performance
This model meets Energy Star® requirements and is certified to ANSI Z21.47 / CSA 2.3 standards. Airtight cabinet construction limits air leakage to 1% or less of nominal delivered airflow when pressurized to 0.5-inch water column, supporting efficient system performance.

Engineered for Efficient, Mid-Size Residential Heating
Ideal for medium-sized homes requiring reliable, staged comfort control, the Trane S9V2B080U4VSBB delivers 97% AFUE efficiency, variable-speed airflow performance, and durable stainless steel heat exchanger construction in a compact 34-inch cabinet. As part of the S-Series furnace lineup, it offers flexible installation, long-term reliability, and consistent comfort throughout the heating season.