Caja de control Brahma 20080005 CM11

Brahma CM11 (art. 20080005 / 246.124.030) is a compact and reliable microprocessor-based controller (burner management unit) designed to provide complete automation and safety for atmospheric gas burners in heating and heat generation systems. Purpose and applications The controller is designed for controlling atmospheric modulating (progressive) gas burners operating in intermittent (cyclic) mode. The device is equally effective for burners both with and without a fan. Applications include: Heating and combination boilers (domestic and industrial); Air heaters and hot air guns; Infrared (IR) heaters and radiant tube heaters; Water heaters, process furnaces, combi steamers; Burners from leading brands: Riello, Baltur, Weishaupt, Lamborghini and others. Main functions and features Fully automatic combustion cycle – The unit independently manages the entire sequence: false flame check → pre‑purge → ignition → flame monitoring → safe shutdown on flame loss. Reliable flame control – Uses the ionisation method for flame detection. Response time on flame loss is less than 1 second, meeting strict safety standards. Non‑volatile lockout and manual reset – The main feature of this model is the manual lockout reset. Unlike versions with an electric reset, after a safety shutdown the burner must be restarted by manually pressing the Reset button on the housing after the cause of the fault has been eliminated. This prevents automatic restart and meets the highest safety class. Built‑in high‑efficiency ignition transformer – Provides reliable ignition of the fuel‑air mixture without the need to purchase and install a separate ignition unit. Multi‑level electronic protection: Built‑in varistor and fuse protect against voltage surges and short circuits. The control unit is rated for more than 250,000 switching cycles under maximum load. Robust and compact housing – Made of impact‑resistant, self‑extinguishing plastic, providing IP00 protection (protection against ingress of solid particles). Mounting in any position (on DIN rail or by screws). Installation inside a protective enclosure/cabinet is recommended to achieve IP40 protection. Standards compliance – The device is certified according to European directives and fully complies with EN 298:2003 for automatic gas burner control systems. Technical specifications The exact parameters for this model are given below; they must be considered when selecting or replacing the control unit. Parameter Value Model Brahma CM11 Article numbers 20080005, 246.124.030 (identical) Rated voltage 230 V AC, 50/60 Hz Power consumption 7 VA Burner type Atmospheric, progressive (modulating) Operating mode Intermittent (must be stopped at least once every 24 hours for self‑diagnosis) Pre‑purge time (tv/tp / t1) 1.5 seconds Safety time (ts / t2) 10 seconds Waiting time (tw / t3) 1.5 seconds Minimum ionisation current 1.2 µA Response time on flame loss 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 to restart. 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. Operating mode – The unit is designed for intermittent operation. To maximise service life and safety, the system must be forced to stop at least once every 24 hours to perform the built‑in self‑diagnosis. Advantages over alternatives Manual lockout reset – Provides the highest level of safety, preventing automatic restart of the burner while a fault remains uncorrected. Optimal timing parameters (1.5/10/1.5 s) – Ideally suited for most progressive atmospheric burners, ensuring fast and safe start‑up. High reliability and service life – More than 250,000 operating cycles, built‑in protection against voltage surges and short circuits. Ease of installation and diagnostics – Compact housing, DIN rail mounting and LED status indication for rapid fault localisation. Italian quality – High‑grade components and strict production control, guaranteeing stable operation under all conditions. Package contents Brahma CM11 burner control unit (art. 20080005) – 1 pc. Quick installation and operation guide (several languages). Note: The connection base, ionisation electrode, ignition electrode and other accessories 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 20080005 (main Brahma article) 246.124.030 (alternative Brahma marking)