Ecoflam MULTIFLAM 200.1 TC VGD 40.065 [3/54] Adjusting the combustion process

Ecoflam MULTIFLAM 200.1 TC VGD 20.503 [3/54] Adjusting the combustion process
3
420010316901 Multiflam 170.1 - 200.1 AB/AB
EN
CONNECTION TO THE GAS PIPELINE
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.
ELECTRICAL CONNECTIONS
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.
OPERATION OF BURNER WITH GAS
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 (sealed, 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 cham-
ber. 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 ensu-
re 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 ADVICE
All adjustable parts must be fixed by the installer after making adjustments. Check flue combustion after each adjust-
ment. The CO
2
values must be approx. 9.7 (G20) 9.6 (G25 11.7 (l3B) 11.7 (l3P) and the CO must be less than 75
ppm.
ADJUSTING THE COMBUSTION PROCESS
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
CO2 9,6%
CO <100 ppm
GPL
CO2 11,7%
CO <50 ppm
AIR EXCESS (%)
AIR FACTOR
10
10 20 30 40 50 60
70
80
90
100
200 300 400
500
600
700
800
900
1000 2000
1,1
1,15
1,2
1,2 1,2
1,25
1,3
15
20
25
30
THERMAL POWER (kW)
2
01
GAS OIL
To calculate the burners working output, in kW, proceed as follows:
- Check at the meter the quantity of supplied litres and the duration,
in seconds, of the reading, then calculate the burners output through
the following formula:
CALCULATION OF WORKING OUTPUT OF THE BURNER
e
x f = kW
s
e =
Litres of gas
s = Time in seconds
G20 = 34,02
G25 = 29,25
G30 = 116
G31 = 88
f

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