always verify the pressure switch specifications and mounting orientation against your specific equipment's data plate

standard self-tapping HVAC screws are required for fastening to the equipment chassis

while 4-pipe configurations require specific lead connections to manage independent hot and chilled water valves through the Heat-Off-Cool switch

Durable Construction: Manufactured using robust materials that resist wear and degradation in harsh industrial environments

providing reliable monitoring in demanding environments

Lochinvar & A.O. Smith 100171945 Gas Valve Kit 318423-701 always verify the pressure switchIf you are servicing a Lochinvar Knight WH85 or A. O. Smith commercial boiler system, the 100171945 Gas Valve Kit (Alternative Part Number VAL30032) is the direct OEM replacement for maintaining precise manifold gas pressure. This assembly is critical for high efficiency wall mount boilers, ensuring the correct air to gas ratio for stable combustion and reliable high altitude performance. As a technician, you know that flange mounted gas valves on