The Trane KIT15815 Furnace Control is a critical OEM ignition control module designed for high-reliability performance in Trane and American Standard gas furnaces. This comprehensive kit serves as the primary integrated furnace control (IFC), managing the ignition sequence, flame sensing, and blower motor timing to ensure safe and efficient combustion. It is the direct furnace control board replacement for legacy part numbers CNT5120, CNT05120, CNT3078, and CNT03078. By upgrading to the KIT15815, technicians can address common failure points such as intermittent ignition or furnace short cycling caused by aged circuitry. This factory-authorized kit includes a high-durability silicon nitride ignitor and a specialized wire harness adapter, allowing for a seamless retrofit into existing 24V control systems. The board utilizes advanced microprocessor logic to monitor safety switches and limit switches, providing precise HVAC troubleshooting data through onboard diagnostic indicators to streamline service calls and reduce downtime in the field. Key Benefits Full System Integration: Combines the Trane ignition board, a premium silicon nitride ignitor, and all necessary wiring in a single service kit. Enhanced Compatibility: Functions as a direct drop-in for CNT5120 and CNT3078, eliminating the need for complex field modifications. Reliable Operation: Engineered to original equipment specifications for precise timing of the furnace ignition sequence and blower activation. Simplified Diagnostics: Features status LEDs to help contractors identify furnace control module errors or safety circuit trips quickly. Common Questions Is the KIT15815 compatible with older 80% and 90% AFUE furnaces? Yes, this kit is designed to replace specific Trane IFC boards found in various induced draft gas furnace models; always verify the CNT part number on the existing board. Does this kit include a new ignitor? Yes, it specifically includes a 120V silicon nitride ignitor (IGN00152) to ensure the entire ignition subsystem is refreshed. Why are the thermostat terminals in a different order on the new board? Modern Trane KIT15815 designs may have updated terminal layouts; technicians should refer to the included wiring diagram as the gas furnace control board may differ from legacy CNT5120 layouts. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
