Brahma Control box SM152N.2 24285622

The Brahma SM152N.2 control box (SKU 24285622) is a microprocessor-based flame safeguard control for automatic ignition, flame monitoring, and safe operation of atmospheric gas burners with intermittent cycle. It is suitable for burners with natural draft or forced air supply, and is a direct modern equivalent of the obsolete SM152.2. The device features a built-in ignition transformer, ionization flame detection with reaction time under 1 second, and manual reset lockout for safety. It is used in gas heating and combi boilers, air heaters, water heaters, ovens, and professional kitchen equipment, and is compatible with OEM equivalents from Riello, Baltur, Lamborghini, Weishaupt, and Zanussi.

Control boxes of this type are selected by matching the supply voltage, safety times (pre-purge and flame proving), flame detection method, and wiring base pattern. The physical connection—either a base or plug pattern—must correspond exactly. Confirm that the burner's existing parameters align with the control box's specifications before ordering, as mismatched safety times create a safety hazard. Installation involves replacing the unit in the same wiring configuration and ensuring the flame detector and pressure switches are correctly connected.

Typical failures include lockout due to no flame detected within the safety time, ionization circuit break, or ignition failure. The equipment may fail to start or shut down unexpectedly, requiring manual reset via the reset button. Check the flame detector, ignition transformer, and wiring connections for faults, and verify that the control box receives proper power and signals from pressure switches.