Common Questions What is the difference between 3206A/C3 and 3206A

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

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

or if the seal to the flue pipe has been compromised by mechanical stress

Does this unit include a mounting gasket or flange

Lochinvar & A.O. Smith 100277816 Control 319848-301 Common Questions What is theThe 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