Brahma-30084621-CM391N.2-Steuergerät

Brahma CM391N.2 is a microprocessor-based controller ("burner manager") of the EUROBOX series, designed for automatic ignition control, flame monitoring and safe operation of atmospheric gas burners with a fan (forced draft) operating in intermittent (cyclic) mode. The device is suitable for controlling both single-stage and two-stage burners. The unit is widely used in various types of heat-generating equipment: gas heating and combi boilers (domestic and industrial); air heaters, hot air generators (Master, OKLIMA, etc.); air heaters, infrared heaters, radiant tube heaters; water heaters, process furnaces, combi steamers; burners of leading brands: Riello, Baltur, Weishaupt, Lamborghini and others. Important information about time parameters The CM391N.2 model is available in several modifications that differ in pre-purge time (tv/tp), safety time (ts) and waiting time (tw). For article 30084621 these parameters are preset by the manufacturer. Before purchasing, be sure to check the marking on the housing of your old unit with the characteristics of the new one. Typical combinations for CM391N.2: tv/tp = 1.5 s, ts = 5 s, tw = 1.5 s (e.g., art. 30083301) tv/tp = 20 s, ts = 10 s, tw = 20 s (e.g., art. 30080001) For article 30084621, check the current values with the seller or by the marking on the housing. Mismatch of parameters will lead to incorrect operation or emergency lockouts. ✨ Main functions and features Manual reset of emergency lockout (non-volatile lockout): Key feature of the CM series. In any abnormal situation (no flame, ignition failure, ionization circuit break) the unit goes into emergency lockout. Restart is possible only after eliminating the cause and pressing the reset button.