Brahma 30021786 CM31 control box

Brahma CM31 BR 30021786 automatic gas firing device is designed for reliable burner ignition and flame monitoring. It provides safe sequencing and immediate lockout in case of ignition faults. Technical data Supply voltage: 230 V AC, 50 Hz Operating range: −15 to +70 °C Pre-purge: 20 seconds Safety time: 3 seconds Flame detection: ionization probe Adjusment Brahma CM31 BR 30021786 control box starts with a purge cycle, then delivers spark ignition and checks the ionization signal. If the flame is present, combustion continues; otherwise the system enters lockout for safety.