34
If the burner ignites but the spark is still on and after a few seconds the control unit locks out, make sure that:
- phase is connected to terminal 1 and neutral is connected to terminal 2 of the control panel
- the ionisation electrode does not discharge to earth due to ceramic rupture, or due to wrong position or
humidity
- the plant earthing is correct and the earth wire connected to the burner is correctly fixed
Warning: it is absolutely forbidden to adjust screws to different values than those stated in the table.
Thermal output
mbar
34.9
10.2
35.2
10.4
35.6
10.6
36.0
10.9
36.4
11.1
36.7
11.3
37.1
11.6
37.4
11.8
37.9
12.1
38.3
12.3
38.6
12.5
39.0
12.7
39.3
12.9
39.7
13.2
Block screws 1 and 2 with their nuts and seal them. Adjust the hot water thermostat to the desired temperature,
set the summer/winter switch to the desired position.
Flow rates for LPG cannot be reduced.
ADJUSTMENTS
- Shut off the boiler turning the main switch. Remove the
pressure screw downstream of the valve. Move the water
column manometer on the downstream pressure point. Tighten
the screw again on the inlet pressure point. Start the main
switch (*). Set the summer/winter switch to summer. Check
that gas pressure to the burner matches that stated in the
table (maximum value). If not, loosen the screw 1 and adjust
screw 2.
- Set the priority thermostat to minimum, the summer/winter
switch to winter (make sure that clock and room thermostat
are closed) and wait for the heating operation lamp to light.
Adjust screw 1 to the pressure value matching the desired
thermal output.
Control knob
Pressure regulator
Inlet pressur
point
Downstream
pressure point
