Brahma NDM Controllers – Smart Combustion Management for All Burner Types

Brahma NDM series controllers are microprocessor-based devices designed to manage a wide range of burners – gas, oil, pellet, and hybrid types. They offer automatic ignition, flame detection, valve control, and safety lockout in accordance with EN 298. The series includes models such as NDM, NDT, NDE, NDTE, and NDMO, each tailored to different applications and burner configurations.

Thanks to their modular architecture, NDM controllers are compatible with single- or dual-stage burners, ventilated or non-ventilated designs, and modulating systems. Discover all Brahma combustion control modules to find the right solution for your system.

Main Functions and Features

NDM controllers offer comprehensive burner management including:

• Ignition with or without pre-ventilation
• Control of one or two solenoid valves
• Support for pressure, temperature, and flame sensors
• Automatic lockout on failure or flame loss
• LED-based status indication and fault codes
• Optional modulation and external interface connections

Each unit is configured for a specific burner type and cycle logic: intermittent, continuous, two-stage, or modulating.

Ignition Control

The controller activates the ignition transformer during the startup phase to generate a spark across the electrodes. Electrical connections are made via terminals or quick-connect bases. Key timing elements include:

• Pre-purge time (TW)
• Safety time (TS)
• Post-ignition ventilation
• Re-ignition logic and delays

Timing values can be set at the factory or configured via software tools depending on the model.

Flame Detection and Sensor Compatibility

The NDM series supports multiple types of flame sensors:

• Photoresistor (FC)
• Phototransistor (FT)
• Ionization electrode
• Optional UV sensor (FD)

The controller monitors flame presence during operation and locks out in case of loss, false flame detection, or improper flame shape.

Interface and Modularity

Some models include the J8 interface for integration with advanced modules such as thermostats, servomotors, or diagnostic systems. This enhances usability in modern heating systems and allows remote reset, status monitoring, and data communication.

Operating Cycle Logic

Standard operating sequence includes:

1. Startup and input check
2. Pre-purge with fan (if applicable)
3. Ignition and valve activation
4. Flame detection and run
5. Post-purge and shutdown

If any error occurs (no flame, air pressure fault, overheat, or wiring fault), the controller disables fuel output and enters lockout mode, showing the fault via LED indicator.

Key Advantages

• Fully configurable logic for various burner types
• Compatible with ionization, photoresistor, and UV sensors
• EN 298 certified with built-in safety routines
• Modular casing and quick terminal connections
• Interface for diagnostics and system integration

Conclusion

Brahma NDM controllers offer a reliable and flexible automation solution for modern combustion systems. From basic to advanced burner setups, their intelligent logic and safety functions make them suitable for OEMs, installers, and retrofit projects. Browse our complete range of burner management modules to find the model that fits your application.