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71.06953.01 - EN
INSTALLATION INSTRUCTIONS
19.1 GAS VALVE CALIBRATION FUNCTION
Note:
The function is automatically deactivated after a period of 15 minutes, at the end of which the electronic board returns to
its operating status prior to the activation of the function or prior to reaching the set maximum temperature.
To simplify calibration of the gas valve, the calibration function may be set directly
on the boiler control panel as follows:
a) hold down the buttons and together for at least 6 seconds;
b) after about 6 seconds, the symbols ash;
c) the display shows, at intervals of one second, “100” and the flow temperature.
In this phase, the boiler works at the maximum heating output (100%).
d) press +/- to immediately set the power of the boiler (100% or 0%);
e) adjust the “Pmax/Pmin” screw (gure 10) to set the burner pressure value as
described in table 1.
To adjust pressure at maximum power, turn the “Pmax” screw (g. 10) clockwise
to increase or anti-clockwise to decrease pressure at the burner.
To adjust pressure at minimum power, turn the “Pmin” screw (g. 10) clockwise
to increase or anti-clockwise to decrease pressure at the burner.
f) press +/- to gradually set the desired power level (interval = 1%).
Press the button to leave the function.
0805_2302 / 1002_1201
Consumption 15°C-1013 mbar
24 BIC FF - 24 BIC
G20 G31
Rated power
2,73 m
3
/h 2,00 kg/h
Reduced power
1,26 m
3
/h 0,92 kg/h
p.c.i.
34,02 MJ/m
3
46,34 MJ/kg
Table 2
* 1 mbar = 10,197 mmH
2
O
Table of burner nozzles
24 BIC FF 24 BIC
gas type G20 G31 G20 G31
diameter of nozzles (mm) 1,18 0,69 1,18 0,69
Burner pressure (mbar*)
REDUCED HEAT OUTPUT
1,7 6,9 1,6 6,6
Burner pressure (mbar*)
RATED HEAT OUTPUT
7,8 24,7 7,5 18,1
Diameter of gas diaphragm (mm) 4,2 3,5 4,2 3,5
N° nozzles 18
Table 1
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