BRAHMA EUROBOX Series

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.

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EUROBOX SERIES

TYPES CM...N SM...N MM...N

AUTOMATIC CONTROL SYSTEMS FOR

GAS BURNERS AND GAS BURNING

APPLIANCES WITH OR WITHOUT FAN

(MANUAL RESET)

DESCRIPTION

This series of electronic systems is suitable to control

atmospheric gas burners for non-permanent operation with

or without fan in the combustion circuit.

All control units are provided with non-volatile lockout, i.e.

restart from the safety shutdown condition can only be

accomplished by manually resetting the system.

The control units of this series are suitable for:

combi boilers

heating boilers

hot air generators

radiant tube heaters

water heaters.

Their technical and manufacturing characteristics and the

variety of models make them suitable also for the

automation of ovens, cookers, stoves and, more generally,

for gas firing appliances equipped with atmospheric burner.

FEATURES

Table 1 shows the main features of this series.

Other important features are mentioned below:

– EC type examination certificate (EC Reg. no. 51BT3691)

in accordance with the European Gas Appliance

Directive 90/396 and the following amendment 93/68;

in compliance with EN298:2003 (European standard for

automatic gas burner control and flame detection

systems);

flame detection exploiting the flame rectification effect

(ionization);

two independent safety contacts in series on the gas

valve output;

electrical service life at max declared loading > 250.000

operations;

inbuilt manual reset; some models can be provided with

remote reset;

incorporated highly efficient and completely solid-state

design ignition device;



auxiliary contact for low-power ignition or main valve

control for intermittent pilot systems (this is not a SELV

contact and is therefore not suitable to control circuits

type SELV – Safety Extra Low Voltage, e.g. 24V –);

different connection and fixing possibilities.

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Summary

EUROBOX SERIES

Automatic Control Systems for Gas Burners

Systems for gas burners and appliances with or without fan, featuring manual reset.

Product Description and Features

System Capabilities and Specifications

Details suitability for burners, non-permanent operation, safety lockout, EC compliance, and flame detection.

Technical Data and Construction

Technical Specifications

Provides power supply, temperature, humidity, protection degree, and timing parameters.

Construction and Protection

Explains casing, PCB structure, varistor protection, and internal fuse details.

Dimensions, Accessories, and Connection

Overall Dimensions and Casing Types

Shows overall dimensions and details casing types with fixing systems.

Accessories and Connection Options

Describes reset buttons, strain relieves, and various socket connection types (NG, MG, P, R).

Installation Directions

Installation Guidelines and Precautions

Provides guidance on regulation shutdown, safety, power connection, mounting, and water exposure.

Electrical Installation and Operation

Electrical Installation Requirements

Covers electrical safety, polarity, earth connection, and cable placement.

System Operation and Startup Checks

Details startup checks, system self-checking, air pressure switch, and flame failure response.

Control Unit Resetting

Resetting Procedure and Guidelines

Explains the waiting time, manual operation, and combining reset with the main switch.

Connection Diagrams

Wiring Diagrams for Various Models

Presents detailed wiring diagrams for specific control unit models.

Operating Diagrams

Operational Sequence Illustrations

Illustrates the operating sequences and timing for different control unit types.