Description
The Trane CNT3457 Integrated Direct Spark Ignition (DSI) Control Module is a genuine OEM control board designed to manage the ignition process in gas-fired HVAC systems. This essential component serves as the “brain” of the ignition system, coordinating flame sensing and spark generation to ensure reliable burner start-up and safe operation. Built to Trane’s exacting standards, it’s a trusted choice for furnace repair and maintenance in residential HVAC applications.
Key Features
- Integrated DSI Control Module: Manages direct spark ignition in gas furnaces, enabling automated fuel ignition and flame sensing for efficient heating performance.
- OEM Trane Part Number – CNT3457: Designed by Trane and compatible with many Trane and American Standard furnace models; superseded by the updated part CNT03457 for newer systems.
- Compact Dimensions: Approximately 5.85" (L) x 5.65" (W) x 3.35" (H) — optimized for direct fit into control compartments of compatible units.
- Lightweight Design – ~0.71 lb: Easy to install and handle during service or replacement.
- Reliable Ignition Control: Provides consistent spark and flame monitoring, improving system reliability and reducing ignition failures.
- Direct OEM Replacement: Works in systems originally equipped with CNT3457; compatible replacements often use the newer part number CNT03457.
