Which systems is this part designed for

Precision Pressure Settings: Factory-set to 50 PSI to maintain safe operating parameters and prevent catastrophic vessel failure

the relay is rated for 16 Amps at 120V and 8 Amps at 240V

HVAC refrigeration

28" PF pressure threshold while checking for continuity across the terminals with a multimeter

Lochinvar & A.O. Smith 100110742 Temperature Assembly 326070-701 Which systems is this partThe Lochinvar & A. O. Smith 100110742 Temperature Assembly is a specialized ECO Outlet Temperature Assembly engineered for precision thermal monitoring in high efficiency commercial water heaters and boiler systems. As a critical safety and operational component, this OEM replacement part utilizes a dual thermistor configuration to provide real time resistance based data to the integrated control board. By monitoring the outlet water temperature at