Nordyne 624689R Interface Module 318973-401 With a maximum operating pressure

With a maximum operating pressure of 400 PSI and a 3

Fuel Versatility: Fully compatible with natural gas (NG)

the MR212 series is compatible with natural

Key Benefits Precise Zero Governor Control: Maintains secondary pressure at or near atmospheric levels for accurate air-gas mixing

Using a multimeter set to millivolts (mV)

Nordyne 624689R Interface Module 318973-401 With a maximum operating pressureThe 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