and Tempstar residential and light commercial HVAC units

this Marley engineered thermostat includes the knurled adjustment knob and necessary hardware for a complete built-in installation

making it a reliable Trane motor replacement for several legacy models

this is the drop-in replacement

Designed to restore the original sealing integrity of Armstrong Model 90

Lochinvar & A.O. Smith 100111012 Electronic Control 340793-762 and Tempstar residential and lightThis genuine Lochinvar & A. O. Smith 100111012 Electronic Control is a critical microprocessor based controller designed specifically for BTH400NL commercial water heaters. As a primary digital display control board, it manages the combustion process, monitors safety limit strings, and provides real time diagnostics for high efficiency systems. This module is the direct replacement for the legacy 9006235005 control board, ensuring seamless integration