this 1/3 HP motor is the primary field replacement for several legacy models

Precision Engineering: Features a durable 115V motor designed for long-cycle reliability in residential and light commercial applications

This 3/4 inch NPT valve features a rugged iron body construction and is factory set at 50 PSI to provide critical overpressure protection for commercial and residential boiler systems

offering superior durability over older silicon carbide versions

Versatile Mounting: Direct-acting design allows for multi-positional mounting to fit tight piping configurations

Lochinvar & A.O. Smith 100277816 Control 319848-301 this 1/3 HP motor isThe Lochinvar & A. O. Smith 100277816 Interface Control is an essential OEM replacement component designed for precision management of commercial and residential water heaters and boilers. As a veteran grade HVACR control board, this unit integrates advanced diagnostic capabilities with a clear LCD interface to provide real time data on system temperature, sequence of operation, and communication status. This high performance boiler interface control