Lochinvar & A.O. Smith 100074451 PCB 322057-301 Generic parts often lack the

Generic parts often lack the precise dimensions of a factory authorized part

the HH12680001 offers a reliable activation point essential for passing fire safety inspections and protecting the equipment from catastrophic overheating

for optimum performance and to prevent water hammer

providing a high-integrity seal between the blower assembly and the gas-air mixing components

oversized gas input

Lochinvar & A.O. Smith 100074451 PCB 322057-301 Generic parts often lack theThe Lochinvar & A. O. Smith 100074451 PCB is a critical integrated control module designed for high efficiency commercial and residential water heaters and boilers. Known as the MC50 PCB, this genuine OEM component manages vital system operations including ignition sequences, temperature regulation, and safety circuit monitoring. Engineered for a precise fit in Lochinvar Knight and various A. O. Smith tankless models, it ensures absolute signal