Brahma 37200800 VM45G control box

Brahma VM45G 37200800 gas control units are designed for efficient control of forced-draft gas burners or fuel oil burners designed for continuous operation. They provide reliable non-volatile locking, in which restarting is possible only after manual reset of the control.

Among the numerous functions, the ability to connect various types of air dampers manufactured by Brahma or other companies stands out, which provides double flame modulation. This makes the controllers versatile and adapted to various requirements and operating conditions.

Another significant feature of the Brahma VM45G 37200800 control box is the ability to transmit information about the operating cycle through an appropriate cable. This provides operators and engineers with valuable data to monitor and optimize burner processes.

These controllers are ideal for equipping burners used in domestic and industrial single- and dual-flame heating systems. Their high functionality and reliability make them an important element in heating and heat supply systems.

Main Features

– EC type certification:

– EC type certification (CE PIN 0476CR0811) in accordance with the Directive on Gas Appliances 2009/142/EC (until April 20, 2018) and the Regulation on Gas Appliances (EU) 2016/426 (from April 21, 2018).

– Compliance with EU directives:

  – Compliance with EU directives, including electromagnetic compatibility (EMC) 2014/30/EC and the Low Voltage Directive 2014/35/EC.

– Standards and norms:

  – In accordance with EN298:2012 (European standard for automatic control systems for gas and oil burners and flame detection), EN676:2003 (European standard for automatic gas burners with forced draft), DIN 4788 (German standard for burners with fan) and EN60730-2-5 (European standard for automatic control with Class C software).

– Connectivity options:

  – The ability to connect remote lock and reset signals.

– Flame detection:

– Detection based on the flame straightening property using an electrode or detection of ultraviolet radiation by an FD photodiode for gas versions of VM44G.

  – Detection of visible light using a photodetector of the FT, FC type or detection of ultraviolet radiation by an FD photodiode for oil versions of VM44O.

– Solenoid valve:

– Two independent safety contacts for controlling the electromagnetic fuel supply valve.

– Reliability and service life:

  – The maximum service life of electrical equipment with a declared load of more than 250,000 operations.

– Flexibility and power:

– Without restrictions on the burner power, taking into account the compliance of time and principles of operation at the stage of project development.

– Fine tuning:

– Accurate and reproducible tuning time.

Technical specifications

Power supply: 220-240 V – 50-60 Hz

Frequency range: 110-120 V – 50-60 Hz

Storage temperature range: -40°C – +85°C

Humidity: no more than 95% at 40°C

Degree of protection (with socket): IP 40

The presence of a base: yes

Pre-ventilation time (TV/tp): 3 seconds

Safety time (ts): 3 sec

Ambient operating temperature: -20 to +70 °C

Weight:0.25 kg

Dimensions:8.5x6x6.5 cm

Power consumption during operation: 30 VA

Construction

The Brahma VM45G 37200800 burner controller uses surface mounting for the “logical core”, reducing the size of the board. The microcontroller provides programming flexibility and access to functions. An important safety element is a varistor that protects against peak voltages caused, for example, by lightning. The built-in fuse ensures safety in case of short circuits at the outputs, extending the service life of the system.

Surge protection

The Brahma VM45G 37200800 ignition automation with built-in high voltage protection is activated when the threshold value is exceeded (approximately 290 VAC). The device switches to safe mode, suspending normal operation to prevent damage at high voltage. To restore normal operation, it is necessary to wait for the voltage to decrease to about 280 V AC, after which a reboot occurs automatically. This function provides protection against increased voltage in case of unstable power supply or sudden changes in mains voltage.

Undervoltage protection

Brahma VM45G 37200800 controller provides protection against low voltage. When the voltage level drops to less than 165 VAC (or about 78 V in 110-120 VAC versions), the device automatically switches to safe mode, suspending normal operation to prevent damage. After the voltage is restored to about 175 VAC (or about 83 V in 110-120 VAC versions), the device automatically restarts. This function protects against low voltage, especially important in case of unstable power supply, preventing possible problems in operation.