Brahma Burner management control unit MPI22 37201251

Brahma MPI22 (SKU 37201251) is a microprocessor-based burner management control unit for forced draught burners operating in intermittent mode. It manages the complete sequence: pre-purge (20 s), ignition, flame monitoring, and safety lockout. The unit operates at 230 V supply voltage, has a safety time of 3 s, and supports flame detection via ionization or UV sensor (UV1). It is suitable for gas, oil, and dual-fuel burners with multi-stage or progressive control. The device has a net weight of 0.95 kg and protection class IP40.

When selecting a replacement control unit of this type, verify the supply voltage, safety time, pre-purge time, and flame detection method (ionization, UV, or IR) match the burner's requirements. Also confirm the mounting base or plug pattern is compatible. Controls are typically not interchangeable across series, even within the same brand, so check all markings on the existing unit before ordering.

Common failure modes include lockout without flame signal, failure to start or complete pre-purge, and intermittent operation. Symptoms may include the burner not igniting, repeated lockouts, or the control not responding to reset. Check the flame sensor, wiring, and supply voltage, and verify the control's timing settings match the burner's specifications.