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Optimized Combustion: Includes calibrated propane orifices and regulator components to maintain correct manifold pressure and thermal efficiency
The stainless steel power assembly provides superior resistance to corrosion
making it an essential commercial refrigeration pressure switch for pump-down cycles and compressor protection
we recommend using this specific York OEM relay for York equipment to ensure the mounting orientation and terminal ratings align with the system's wiring harness and current draw requirements
McDonnell & Miller 194-B-1 Replacement Casting 30067439-890 Optimized Combustion: Includes calibrated propaneThe 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