Engineered with a rugged cast iron body

Diagnostic Ready: Integrated 1/8" NPT pressure taps on both the left and right sides allow for rapid manifold pressure verification

provided the specific unit’s manual specifies part 100208390

10' Capillary

Its direct-acting or pilot-operated construction requires no minimum operating pressure

Nordyne 624689R Interface Module Freon Engineered with a rugged castThe 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