Trane CNT7679 Control Board 321042-401 ensuring proper venting of flue

ensuring proper venting of flue gases

ideal for systems with expansion valves or frequent cycling

providing robust electrical switching for heavy-duty HVAC cycles

It is rated for a maximum temperature of 200°F

Trane CNT7679 Control Board 321042-401 ensuring proper venting of flueThe Trane CNT7679 Control Board is a critical OEM 120v HSI 1 stage replacement engineered for high performance gas furnaces. Designed to manage the ignition sequence and blower timing, this integrated furnace control board provides precise regulation for hot surface ignition systems. As a veteran spec part, the CNT7679 replaces a wide range of legacy components including CNT7979, CNT3799, and CNT2183, ensuring backward compatibility with furnaces