McDonnell & Miller 194-A-7B Controller 30067439-890 Technicians should check for continuity

Technicians should check for continuity across the terminals when the switch is cool

Rated for 40 FLA (Full Load Amperes) and 50A resistive loads

it typically requires a small pressure differential to function correctly

This complete gas filter replacement kit is essential for protecting downstream components like gas pressure regulators and automatic shut-off valves from particulate contamination

McDonnell & Miller 194-A-7B Controller 30067439-890 Technicians should check for continuityThe McDonnell & Miller 194 A 7B (Part Number 167100) is a heavy duty combination low water cut off and pump controller engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 250 PSI, this unit integrates a high performance potentiometer switch to provide a proportional 135 ohm signal, ensuring a constant water level is maintained regardless of varying steaming rates. As a veteran grade float