Brahma Burner control unit CE31 30615506

The Brahma CE31 (SKU 30615506) is a microprocessor-based burner management unit for progressive (modulating) gas burners with forced draft, operating in intermittent mode. It operates at 230 V, with a safety time of 5 s and a pre-purge time of 30 s. Flame monitoring is via an ionisation electrode, with a flame loss reaction time of less than 1 second. The unit features an electric lockout reset and meets EN 298 safety standards. It has a net weight of 0.2 kg, protection class IP00, and dimensions of 116 x 96 x 36 mm. The ambient temperature range is -20 to 60 °C, and the service life under maximum load is 250,000 cycles.

Parts of this type are selected by matching the supply voltage, safety time, pre-purge time, and flame detection method to the burner's requirements. The connection is made via a separate base, so ensure the base type matches the control unit's pin configuration. Verify the dimensions and protection class fit the intended mounting location. Compare the article number with the existing unit's marking to confirm compatibility, as different versions may have different timing parameters.

Typical failures include lockout due to flame loss, which may be caused by a dirty or faulty ionisation electrode, or by gas supply interruptions. The unit may fail to start if the air proving relay or flame signal amplifier malfunctions, often indicated by no response after power-up. Check the wiring connections and the condition of the ionisation electrode, and ensure the power supply is stable. If the unit locks out, it can be reset by interrupting power briefly, but the underlying cause must be addressed.