provided the specific unit’s manual specifies part 100208390

The Johnson Controls A99BC-500C Temperature Sensor is a high-precision PTC silicon sensor engineered for demanding HVACR refrigeration applications

It is primary used for heating cutout or high-limit applications

6 Cv equal percentage flow characteristic

Rugged Construction: High-grade cast iron provides superior resistance to steam-side corrosion and thermal stress

Nordyne 624689R Interface Module Freon provided the specific unit’s manualThe Nordyne 624689R Interface Module is a critical replacement component engineered for precise communication between the thermostat and the integrated furnace control board in specific Miller and Intertherm gas furnaces. This OEM interface board is designed to manage the ignition sequence and blower timing, ensuring the heating system operates within factory specifications. As a direct fit Nordyne replacement part, it addresses common diagnostic