Electrical Connections; Burner Start-Up; Adjusting Combustion Process - Ecoflam BLU 1700.1 PR Mode D'emploi

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All burners factory tested at 400 V 50 Hz three-phase for motors and 230 V 50 Hz monophase with neutral for auxi-

liary equipment. If mains supply is 230 V 50 Hz threephase withuot neutral, change position of connectors on burner

as in fig. Protect burner supply line with safety fuses and any other devices required by safety standards obtaining in the

country in question.

Once connected the burner to the gas pipeline, it is necessary to control that this last is perfectly sealed. Also verify that

the chimney is not obstructed. Open the gas cock and carefully bleed the piping through the pressure gauge connector,

then check the pressure value trough a suitable gauge. Power on the system and adjust the thermostats to the desired

temperature. When thermostats close, the sealing control device runs a seal test of valves; at the end of the test the bur-

ner will be enabled to run the start-up sequence.

Once connected the burner to the gas pipe make sure that there are no leakages. Air bleed the pipe through the pressure

gauge fixing point and check the pressure with a pressure gauge . Turn the thermostats to the desired temperature.

PRELIMINARY CHECKS

- Before starting up the boiler check the following: - gas type and feed pressure; - gas valves closed;

- the seals in the pipe fittings; - gas pipe breather and input pressure; - that the cable complies with the diagram and the

phase and neutral wires correspond; - that the burner shuts down when the boiler thermostat opens;- the seal of the

boiler furnace which prevents air from entering; - the seal on the flue-boiler pipe fitting; - the condition of the flue (sea-

led, free from blockage, etc ).If all these conditions are present, start the burner. The control device starts the motor to

carry out prewashing of the combustion chamber. During this prewash period (about 30 seconds) the device checks

that air pressure is correct via the air pressure switch. At the end, it supplies power to the transformer and opens the gas

valves. The flame must be lit and stabilize within 3 seconds, which is the device's safety time limit. Check to ensure the

flame is lit before placing any control instrument in the flue. Adjust and check the gas flow necessary for the boiler at

the meter. Adjust the air flow according to the gas flow to obtain correct combustion.

IMPORTANT: to obtain the right adjustment of the combustion and thermal capacity it is important to analyze the

reducts of combustion with the aid of suitable instruments. The combustion and thermal capacity adjustment is done

simultaneously, together with the analysis of the products of combustion, making sure that the measured values are sui-

table and that they comply with current safety standards. On this matter, please refer to the table and figure below.

THESE OPERATIONS MUST BE DONE BY PROFESSIONALLY-QUALIFIED TECHNICIANS.

Metano

9,6%

CO <100 ppm

GPL

11,7%

<50 ppm