Engineered with a rugged cast iron body

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

10' Capillary

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

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

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