Trane S9V2B040U3VSBB is a 40,000 BTU two-stage condensing gas furnace with 97% AFUE. It features a variable-speed blower, stainless steel primary and secondary heat exchangers, compact 34” cabinet, and flexible upflow or horizontal installation for efficient home heating.

Unit Type: Gas Furnace
Product Line: S9V2B
Operating Mode: Cooling & Heating
System Capacity: 40,000 BTU
Line Set Size: 1/2"

Trane Furnace S9V2B040U3VSB

1st Stage Capacity up to 25,050 BTU
2nd Stage Capacity up to 38,800 BTU
Room Cooling/Heating Capacity up to 1,750 sq ft

97.0% AFUE Across All Models
Meets utility rebates
Lowers utility bills
Electrically Efficient
Efficient airflow design reduces electrical energy use
34 Inch Tall
Lighter, easier to move and fit into tight spaces like short basements or tight closets
Works great with larger, high-efficiency coils
No knockouts
3-Way Multi-Poise / Dedicated Downflow
6 SKU’s — Upflow / Horizontal Left / Horizontal Right
5 SKU’s — Downflow
Added application flexibility and reduction in specification errors
Airflow
At least 400 CFM/ton at 0.5-inch water column external static pressure; setup airflow options down to
290 CFM/ton
Regulatory
All models are air tight; 1% or less air leakage as per ASHRAE 193
Open vestibule design provides a full 34-inch high open vestibule
Variable Speed Draft Inducer Motor
Increased efficiency
Dimensions
Widths are industry standard: 17.5 inch, 21 inch, and 24.5 inch
Depth remains approximately 28-inch
Cabinet will be compatible with industry standard coils, as well as, other accessories
Integrated Furnace Control
Setup / Status / Diagnostics / Digital Display
No dip switches
Last six errors stored
Dry contact EAC and HUM connections
All multi-pin polarized terminals connections; no spade terminals
Low voltage labeled above and below
Tubular Stainless Steel Primary Heat Exchanger
29 – 4C Stainless Steel Secondary Heat Exchanger
Stainless steel is a more durable, corrosive-resistant material than aluminumized steel
Integrated rail system for easy access if required
Reduces or eliminates need for baffles
Vortica Blower, Designed Exclusively For The S-Series Furnace
Improved airflow efficiency
Durable, easy to clean, two piece housing
Single piece belly band/ motor arm assembly
Blower deck has full-length rails for easy removal and replacement, regardless of poise
Three-Way Multi-Poise (Upflow, Horizontal Left And Right) Plus Dedicated Downflow
Easier to specify
Shipped ready to install (no kits required)
Every model has at least two venting options
Barbed fitting on trap at hose connection and on cabinet transition for hose has barbed fitting and
clamps at both ends for leak resistance.
Vent table improvements including longer vent lengths; 2-inch pipe can be used up to 100K.

Airflow Setting 650, Heating, CFM: 468, 650
Airflow Setting 830, Heating, CFM: 598, 830
Airflow Setting 880, Heating, CFM: 634, 880
Airflow Setting 1200, Heating, CFM: 864, 1200
Airflow Cooling, 1.5-3 Tons, CFM: 450, 420, 400, 370, 350, 330, 310, 290
Size W x D x H: 34" x 17-1/2" x 28-3/4"
Weight: 114 lbs