صندوق التحكم في نظام «Brahma» 37106240 CM31F

Brahma CM31F is a fully solid‑state microprocessor controller (“burner management unit”) designed for complete automation, reliable monitoring and maximum safety of atmospheric gas burners of progressive (modulating) type with a fan, operating in intermittent (cyclic) mode. This device is a key component for a wide range of heat‑generating equipment, including: Heating systems: gas heating and combination boilers (both domestic and industrial, including wall‑hung boilers). Climate control and process equipment: hot air guns, warm air generators (e.g., Master BV70, BV110, BV170, BV290, B230, B360, OKLIMA), combi steamers, radiant tube heaters and water heaters. Industrial installations: process furnaces, food equipment and other OEM assemblies requiring a precise and compact control unit. Compatibility: The controller is suitable for burners from leading brands such as Riello, Baltur, Weishaupt, Lamborghini and others. Main functions and features Manual lockout reset (non‑volatile lockout): The key feature of the CM series. In any abnormal situation (e.g., ignition failure or sudden flame loss) the device automatically locks out. To restart, the Reset button on the housing must be pressed manually after the cause has been eliminated. This eliminates the risk of unintentional burner start‑up and meets the highest safety class. Progressive control: Provides smooth power modulation of the burner, optimising fuel consumption and reducing the number of starts/stops. Instant ionisation flame monitoring: System safety is based on the ionisation method of flame detection (based on the rectifying property of the flame). Response time on flame loss is less than 1 second, guaranteeing instantaneous gas shut‑off to prevent hazardous situations. It is important to note that the flame detection circuit has no protective resistance, making contact with the detection electrode unsafe. Two independent safety contacts: A critically important safety feature. The gas valve output is equipped with two independent contacts connected in series. This redundancy ensures backup and eliminates the possibility of gas leakage if one of the contacts fails. Built‑in powerful high‑voltage ignition transformer: Fully solid‑state type, with EMC filter, provides stable and reliable ignition of the fuel‑air mixture without an additional external ignition unit. Auxiliary contact: For low‑power ignition or for controlling the main solenoid valve in systems with intermittent power supply. Important: This contact is not isolated by reinforced insulation, therefore it is not suitable for controlling extra‑low voltage (SELV) circuits. High reliability and protection: The service life of electronic components is at least 250,000 operations under maximum load. Built‑in varistor and fuse protect the device against voltage surges and short circuits on outputs (valves, fan, lockout signal). Impact‑resistant housing made of self‑extinguishing plastic effectively protects the internal electronics from dust, dirt and mechanical damage. Compliance with international standards: Fully complies with European safety standards for burner control systems: EN298:1993 and EN298:2003. CE certificate (PIN code 0694BR1154) in accordance with Gas Appliance Directives 90/396 and 93/68. Technical specifications Parameter Value Model Brahma CM31F Article numbers 37106240 / 246.124.086 Rated supply voltage 230 V AC, 50/60 Hz (110‑120 V version available on request) Power consumption max. 15 VA Burner type Atmospheric, progressive (modulating), gas, with fan Operating mode Intermittent (must be stopped at least once every 24 hours for self‑diagnosis) Pre‑purge time (tv/tp / TW) 20 seconds Safety time (ts / TS) 10 seconds Waiting time (tw) 20 seconds Response time on flame loss 250,000 operations (at maximum load) Important: Protection class IP00 means the device has no built‑in protection against dust or moisture. To ensure reliable and safe operation, it must be installed inside a protective control cabinet. When installed at the point of use, protection must be upgraded to at least IP20. Compatibility and replacement Compatible burners and equipment: Brahma CM31F is suitable for a wide range of progressive atmospheric gas burners with a fan, including equipment from brands such as Riello, Immergas, Fontecal, Sile, Beretta, as well as for hot air guns, boilers and other equipment with suitable timing parameters (tv/tp = 20 s, ts = 10 s, tw = 20 s). Direct replacement: Article numbers 37106240 and 246.124.086 are identical and fully interchangeable. Accessories: A Microflat‑type connection base (e.g., art. 16023008) is required, purchased separately. The connection diagram is printed on the device housing. Installation and operation Mounting: The device can be mounted in any position. Due to IP00 protection class, it is strongly recommended to install the unit in dry, well‑ventilated locations, always inside a protective enclosure/control cabinet that prevents dust and moisture ingress. Wiring: Always disconnect power before starting work! Strictly follow the correct connection of live and neutral wires, as well as gas valve control and flame sensor circuits according to the diagram on the housing. Molex‑type connectors are provided for reliable connection. Initial start‑up: Before start‑up, ensure the combustion chamber has been purged, the ionisation electrode is correctly positioned and provides a stable signal current (recommended >5 µA for reliable operation). Lockout reset: When a safety lockout occurs (controller stops starting the burner, red LED lit), find and eliminate the cause (e.g., check gas supply, electrode condition, etc.), then manually press the Reset button on the housing. Maintenance: Periodically check the condition of contacts, wiring integrity, and the cleanliness and position of the ionisation electrode. Contamination or wear of the flame sensor can lead to false trips. Advantages over alternatives Manual reset (non‑volatile lockout): Provides the highest level of safety, requiring physical presence of the operator to restart the burner after a fault and eliminating unintentional start‑up. Reliability and durability: Service life >250,000 cycles and built‑in protection against voltage fluctuations guarantee stable operation in all conditions. Versatility: Compatible with a wide range of gas equipment from various manufacturers. Easy integration: Compact dimensions (107×81×36 mm) and standard interfaces simplify installation and replacement. Italian quality: High‑grade components and strict production control, confirmed by CE certification and compliance with EN298 standards. Package contents Brahma CM31F burner control unit (art. 37106240) – 1 pc. Quick installation and operation guide. Note: The connection base, ionisation electrode and ignition electrode are sold separately. Storage conditions and warranty Warranty period: Typically 6‑12 months from the date of sale (please check with the seller) provided that installation and operating rules are followed. Storage conditions: Store in a dry place, protected from direct sunlight, at a temperature between –20 °C and +70 °C. Order codes 37106240 (main Brahma article) 246.124.086 (alternative Brahma marking)