Brahma 37548003 DM31 control box

Brahma DM31 37548003 gas controllers are designed to control atmospheric gas and liquid fuel burners in installations with a non-constant cycle of operation.

Application

• Combined boilers

• Heating boilers

• Steam boilers

• Air heaters

• IR heaters

• Convectors

• Water heaters

• Furnaces

• Block burners

Specifications

• EC certificate (CE PIN 0694BP0610) in accordance with Directives 90/396 and 93/68 on gas equipment;

• Comply with EN 298 (European standard for gas systems and flame detectors);

• Comply with EN 230:2005 (European standard for liquid fuel systems and flame detectors);

• Two independent safety contacts for gas valve control;

• The ability to control Brahma valves of the VCM0x type;

• The ability to connect a custom module;

• Direct or pilot ignition.

• Manual reset

Technical information

Rated supply voltage 220-240V, 50-60 Hz

Power Consumption: 30 VA

Temperature: -20 °C – +70 °C

Humidity: Max. 95% at +40 °C

Protection: IP00

Built-in fuse: 4 A

External fuse: 3.15 A

Maximum weight: about 200 g.

Maximum cable length of external components:

– Room thermostat: 20 m

– Remote alarm: 20 m

– Ignition device (high voltage): 2 m

– Other cables: 1 m

The presence of a base: no

Pre-ventilation time (TV/tp): 10 seconds

Safety time (ts): 10 sec

Standby Time (tw): 10 sec

Dimensions: 10.7×8.1×3.6 cm

Construction

The plastic housing provides reliable protection of the Brahma DM31 37548003 gas control unit from mechanical damage, as well as from exposure to dust and dirt in operating conditions. The technology used for the production and surface installation of electronic components allows you to maintain the minimum dimensions of the controller, which makes it compact and convenient to install.

Additional protection is provided by a varistor, which prevents the controller from possible voltage fluctuations in the power supply network. This additional device contributes to the stable operation of the controller, protecting it from unwanted influences in the electrical network.

Electrical connections

The installation must comply with national requirements and European Union standards, such as EN 60335-1/EN 50165, in the field of electrical safety. When connecting the phase and neutral, special attention must be paid, since errors can lead to dangerous situations. If the correct phase-neutral connection sequence is not followed, the controller will operate in manual reset mode after the end of the start-up safety time.

Before starting the system, it is important to carefully check the cable connections, as an incorrect connection can damage the controller and pose a security risk. You should also check the grounding of the controller, the metal housing of the burner and the main power supply.

It is necessary to ensure an optimal distance between the ionization cable and the power cables/ignition cables. The use of the shortest and most direct ignition cable (maximum length 25 kV) is also an important point to ensure the safety of the system.