McDonnell & Miller 194-B-1 Replacement Casting 30067439-890 The stainless steel power assembly

The stainless steel power assembly provides superior resistance to corrosion

System Reliability: High-grade sensors ensure consistent millivolt generation for stable burner operation

When replacing an expired coil

Optimized Combustion: Includes calibrated propane orifices and regulator components to maintain correct manifold pressure and thermal efficiency

making it an essential commercial refrigeration pressure switch for pump-down cycles and compressor protection

McDonnell & Miller 194-B-1 Replacement Casting 30067439-890 The stainless steel power assemblyThe McDonnell & Miller 194 B 1 Replacement Casting is a critical structural component designed specifically for the Series 194 Combination Low Water Cut Off and Pump Controller. As a veteran preferred boiler replacement part, this heavy duty water column casting features the standard 1 1 4 inch NPT steam equalizing tappings and integrated ports for gauge glass and tri cock sets. Engineered for high pressure environments, it maintains structural