Brahma 18015002 MF2 control box

Brahma MF2 18015002 burner control unit is designed for full control of the combustion process of fuel.

Technical specifications

Supply voltage: 220V (-15%+10%) 50 Hz (±5%)

Consumption – maximum 30 kg /hour.

Operating temperature range: -10°C +60°C

Degree of protection: IP40

Power consumption at startup: 9 VA

Power consumption during operation: 3.5 VA

Rated contact current:

– Burner motor: 4 A

– valves (EV1, EV2): 2 A

– Ignition transformer: 2 A

– Alarm: 1 A

– regulators (T, PA, PG): 6 A

Time:

– pre-preparation time (TV): 30 s

– response time (TS): 3 s

– shutdown time when the working flame is turned off: <1 s

– delay between EV1 – EV2: 30 s

– time after purging: 5 s

Flame control:

– minimum ionization current: 0.5 µA

– recommended ionization current: 7 µA

– minimum insulation resistance of the cable and the flame detection device relative to the ground: > 50 mOhm

– voltage on the detection sensor: 350 V

– recommended operating voltage with phototube: >15 µA

Weight with socket: 600 g

Power consumption: 9 VA.

Application

   – Suitable for gas and fuel oil traction burners designed for both civil and industrial use.

   – Works with burners having two flame levels.

Construction

The components of the Brahma MF2 18015002 relay are securely mounted on a frame made of pressed heat-curing material with high dielectric resistance. For additional protection of the control panel from mechanical damage, as well as from dust and dirt penetrating inside during installation, a durable housing is provided.

Flexible unipolar conductors of various sizes connect all components of the control system, excluding only the flame detection and pre-purge circuit, which are effectively integrated on the printed circuit board. This constructive approach ensures reliable communication between the elements of the system, preventing possible malfunctions and ensuring a long service life of the equipment.

Flame detection sensor

– Can alternatively be used as a probe using the flame rectification property (ionization).

   – Can also work with UV phototube.

Certification and compliance with standards

   – According to TÜV Bayern, Monaco, the control system complies with the German regulations DIN 4788, Part 3, for power up to 350 kW.

   – Received the approval of DIN-DVGW 89.09fBN, although its validity has expired and is not subject to renewal.

Testing and certification

   – “Macintosh and Thermal Engineering Laboratory at the Studi ed Esperienze Center” in Rome – Capannelle tested the MF2 control system with a power of up to 2332 kW.

   – The system has received certificate No. 3704/187/77/21.

   – The approval of the Ministry of Internal Affairs on Fire Safety (Circulars No. 68 and No. 42) emphasizes the safety and compliance with the standards of this control unit.