this component is critical for monitoring supply air temperature and return air temperature

the MA-418 is the current technical equivalent for the legacy EA-12 and MA-415 actuators

and S1-024-36242-000

the integrated SPDT switch allows for simultaneous control of a feeder valve and a burner circuit or low-water alarm

Lochinvar & A.O. Smith 100110883 Pressure Switch 326058-758 this component is critical forThe Lochinvar & A. O. Smith 100110883 is a mission critical Natural Gas Low Pressure Switch designed specifically for commercial water heating and boiler applications. In high demand environments where natural gas water heater safety is paramount, this OEM switch monitors incoming pressure to ensure the burner operates within stable combustion parameters. If the fuel supply drops below the required threshold, the switch triggers an immediate cutoff,