Lochinvar & A.O. Smith 100074451 PCB 321894-708 This model serves as the

This model serves as the primary White-Rodgers 1F95-1277 replacement for several legacy units

Can I use this for a liquid propane (LP) unit

it meets UL555 and UL555S requirements for smoke control

and VG9000 series globe valves

The triangular bracket configuration is designed for mounting surfaces where the shaft is perpendicular to the frame

Lochinvar & A.O. Smith 100074451 PCB 321894-708 This model serves as 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