Selectra Series 94 systems are designed for use with atmospheric and direct fired burners (used in furnaces, ovens, etc.).
Series 94 is used in either 'remote' or 'self-contained' systems, along with components common to either configuration. A remote system contains an amplifier with a separate temperature selector. A room override thermostat is optional with remote single dial selector. The self-contained system has the amplifier/selector combined as a single unit. Common items include temperature sensors, mixing tubes, and modulator-modulator/regulator valves.