McDonnell & Miller 309200 Switch 30067439-890 This motor requires a 7

This motor requires a 7

but technicians should verify the specific part number in the manual

Universal valves often require manual adjustment and may not provide the same precision in refrigerant metering

maintaining the exact mounting footprint and port configurations required for a seamless field retrofit

Thermal Resilience: Constructed for high temperature environments

McDonnell & Miller 309200 Switch 30067439-890 This motor requires a 7The McDonnell & Miller 309200 is an industrial grade 11 MV Millivolt Switch specifically engineered for low water cut off (LWCO) control in steam boiler applications. This millivolt replacement switch is the standard for technicians servicing McDonnell & Miller Series 61, 64, 67, 69, 70, 764, and 767 units. Featuring a Two SPST Auto Reset configuration, the 11 MV provides dual circuit control, allowing contractors to manage both the burner circuit and