Lochinvar & A.O. Smith 100167733 Relay 328140-751 Optimized Combustion Efficiency: Maintains a

Optimized Combustion Efficiency: Maintains a 3000 RPM output to ensure correct fuel-to-air ratios and safe venting of flue gases

this component is the current HVAC replacement part revision and handles all communication protocols required by the specified heating units

and broad application suitability in commercial HVAC systems

Common Questions Is the SP9013E compatible with my older AP9013E-3 valve

providing a mean value that compensates for uneven air mixing in large ducts

Lochinvar & A.O. Smith 100167733 Relay 328140-751 Optimized Combustion Efficiency: Maintains aThe Lochinvar & A. O. Smith 100167733 Relay is a specialized 24V HVAC control relay engineered for high reliability switching in commercial and residential hydronic systems. This OEM replacement relay is frequently utilized in Lochinvar boiler control boards and A. O. Smith water heater electrical circuits to manage low voltage signals that trigger high load components. As a direct replacement for the legacy RLY2708 part number, it maintains strict