Lochinvar & A.O. Smith 100268033 Valve 318172-701 verify the shaft dimensions and

verify the shaft dimensions and mounting hole patterns before attempting to retrofit legacy non-B series units

Key Benefits Universal Compatibility: Serves as the primary 3-wire pilot assembly for a wide range of legacy Carrier-family units

critical for system head pressure regulation

or ventilation control

this assembly provides direct compatibility with existing control boards

Lochinvar & A.O. Smith 100268033 Valve 318172-701 verify the shaft dimensions andThe Lochinvar & A. O. Smith 100268033 Gas Valve Assembly is a critical OEM component designed for high efficiency Knight Fire Tube Boilers and wall mount units. This gas train assembly is engineered specifically for the KH285 and WHN285 models, facilitating precise fuel to air ratio control for optimal combustion. As a veteran technician knows, maintaining the integrity of the gas manifold is non negotiable for system safety and AFUE performance. This