Brahma 37106206 CM31F control box

Brahma CM31F (art. 37106206) is a fully solid‑state microprocessor controller for comprehensive automation, reliable monitoring and maximum safety of gas atmospheric burners with a fan (sealed combustion chamber), operating in intermittent (cyclic) mode. The Brahma CM31F burner control unit guarantees stable and long‑lasting operation of your heating equipment. Purpose and applications Burner type: Progressive (modulating) gas burners with a fan (sealed combustion chamber). Operating mode: Intermittent cycle (must be stopped at least once every 24 hours for self‑diagnosis). Equipment: Ideally suited for automating a wide range of heat‑generating equipment, including: Heating and combination boilers. Warm air generators and hot air guns. Infrared heaters (IR heaters). Radiant tube heaters, water heaters. Combi steamers, industrial and domestic cookers. Main functions and features Manual lockout reset (non‑volatile lockout): The key feature of this model. In any abnormal condition (e.g., flame loss) the controller goes into safety lockout. Restart is only possible manually by pressing the Reset button on the housing after the cause has been eliminated. This eliminates the risk of unintentional burner start‑up and meets the highest safety class. Instant ionisation flame monitoring: Flame detection is based on the rectifying properties of the flame. Response time on flame loss is less than 1 second, guaranteeing instantaneous gas shut‑off to prevent hazardous situations. Two independent safety contacts: A critically important safety feature. The gas valve output is equipped with two independent contacts connected in series. This provides redundancy and eliminates gas leakage if one of the contacts fails. High reliability and service life: Rated for more than 250,000 operating cycles, guaranteeing durability even under intensive conditions. Built‑in powerful solid‑state ignition transformer: Provides stable and reliable ignition of the fuel‑air mixture without an additional external ignition unit. Auxiliary contact: Designed for controlling low‑power ignition circuits or the main valve in systems with intermittent power supply (not isolated for SELV circuits). Built‑in electronic protection: A varistor protects against voltage surges, ensuring stability in unstable networks. An electromagnetic interference (EMC) filter suppresses interference for stable operation. A fuse protects the electronics against short circuits on outputs. Compliance with international safety standards: Fully complies with European standards EN298:1993 and EN298:2003, and is CE certified (PIN code 0694BR1154) in accordance with the Gas Appliance Directive. Technical specifications Parameter Value Model Brahma CM31F Article numbers 37106206 / 246.124.083 Rated supply voltage 230 V AC, 50/60 Hz (110‑120 V version available) Power consumption 2.5 VA / 7 VA Pre‑purge time (tv/tp / TW) 1.5 seconds Safety time (ts / TS) 10 seconds Waiting time (tw) 1.5 seconds Flame control Ionisation electrode (rectification) Minimum ionisation current 1.2 µA (0.5 µA on request) Recommended ionisation current 3‑5 times the minimum Response time on flame loss 5 µA for reliable operation). Lockout reset: When a safety lockout occurs, find and eliminate the cause (e.g., check gas supply, electrode condition, etc.), then manually press the Reset button on the housing. Advantages over alternatives Highest safety level: Manual lockout reset, two independent safety contacts, instant flame monitoring and compliance with strict European standards. Reliability and durability: Italian Brahma quality, service life >250,000 cycles and built‑in protection against voltage fluctuations. Versatility: Compatible with a wide range of gas equipment from various manufacturers with a fan. Easy integration: Compact dimensions and standard interfaces simplify installation and replacement. Package contents Brahma CM31F burner control unit (art. 37106206) – 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 37106206 (main Brahma article) 246.124.083 (alternative Brahma marking)