Beretta Mynute Boiler Green 25 B.S.I. E Manuel D'installation Et D'utilisation page 12

ENGLISH
- To exit the "combustion analysis" function, turn the control knob
- Remove the flue gas probe and refit the plug
- Close the instrument panel and refit the housing.
The "combustion analysis" function is automatically deactivated
if the board triggers an alarm. In the event of a fault during the
combustion analysis cycle, carry out the reset procedure.
table 1
MAXIMUM NUMBER OF FAN
ROTATIONS
25 B.S.I.
35 B.S.I.
table 2
MINIMUM NUMBER OF FAN
ROTATIONS
25 B.S.I.
35 B.S.I.
table 3
MAXIMUM CO
2
25 B.S.I.
35 B.S.I.
table 4
MINIMUM CO
2
25 B.S.I.
35 B.S.I.
table 5
SLOW IGNITION
25 B.S.I.
35 B.S.I.
If the CO values do not correspond to the values in the
2
Multigas table, make further adjustments.
Mynute Boiler Green 25 B.S.I. E
Portata termica - numero giri ventilatore
HTG curve (Qnheating)
CALDAIA Mynute Green 25 CSI E
7500
7000
6500
6000
5500
5000
4500
4000
3500
3000
2500
2000
4 6 8 10
12
METHANE LIQUID
GAS (G20) GAS (G31)
7.100 7.000
6.000 6.000
METHANE LIQUID
GAS (G20) GAS (G31)
2.100 2.100
1.200 1.900
METHANE LIQUID
GAS (G20) GAS (G31)
9,0 10,0
9,0 10,0
METHANE LIQUID
GAS (G20) GAS (G31)
9,5 10,0
9,5 10,0
METHANE LIQUID
GAS (G20) GAS (G31)
4.000 4.000
3.300 3.300
12 14 16 18 20 22
Heat output (kW)
RANGE RATED
This boiler can be adapted to the heating requirements of the sys-
tem, in fact it is possible to set the maximum delivery for heating
operation of the boiler itself:
- switch off the power supply
- setting the heating water temperature selector at the maximum
value
- remove the shell
- turning the instrument panel towards you
- unscrew the two screws of the small cover on the electronic
board to have access to the terminals
rpm
- insert JP1 jumper
rpm
- power up the boiler.
The display shows "ADJ" for about 4 sec.: it is then possible to
change the maximum heating value by means of the heating water
temperature selector and the CO button in order to set and confirm
the desired value.
rpm
The icon will appear on the display.
Finish the procedure by removing the jumper JP1 to store the set
rpm
values.
Once the desired output (maximum heating) has been set, note the
value on the table on the back cover.
For subsequent controls and adjustments, refer to the set value.
%
The calibration does not entail the ignition of the boiler.
%
By rotating the heating setpoint selector knob, the value
expressed in hundreds (e.g. 25 = 2,500 rpm) is automatically
displayed.
Depending on plant engineering requirements or regional flue gas
emission limits it is, however, possible to modify this value, refer-
%
ring to the graphs.
%
rpm
rpm
Mynute Boiler Green 35 B.S.I. E
6500
6000
5500
5000
4500
4000
3500
3000
2500
2000
1500
1000
2 4 6 8
24 26
Curva portata termica - giri ventilatore
HTG curve (Qnheating)
10 12 14 16 18 20 22 24
Heat output (kW)
26 28 30 32 34 36