EN
– loosen the clips (6) and extract the air inlet pipe (7)
– unscrew the swivel joint (8)
– extract the connectors (9) from the fan and disconnect the
electrode cable (10)
10
9
– Unscrew the four nuts (11) securing the combustion cham-
ber door (12)
– pull the fan-sleeve-door assembly (13) forwards and re-
move it.
12
11
13
m
4.3.2
The combustion chamber and the burner do not require any
particular maintenance. Simply brush them with a soft brush.
4.3.3
After having cleaned the combustion chamber and the burner:
– remove any carbon residue
6
– check the state of the ignition/detection electrode and re-
– check that the seal and the insulation of the door (12) to the
– refit the assembly by carrying out the same operations for
7
– reconnect the connections to the fan and the electrode.
4.4
4.4.1
6
It is recommended that the user checks that the combustion
air inlet duct and smoke outlet duct are integral and airtight.
4.4.2
8
It is recommended that the expansion vessel on the water side
is drained and that the prefilling pressure is not less than 1
bar
(see sectionExpansion vessel".
Once the checks described above have been completed:
– refill the boiler as described in section "REFILL operations"
– check that the siphon has been filled correctly
– activate the "Chimney sweep function" and carry out a
Fig. 40
– refit the front panel securing it with the two screws which
4.5
If replacing the electronic board , the user MUST set the param-
eters as indicated in the table.
Type
PAR
PAR
PAR
PAR
11
Fig. 41
CAUTION
Work carefully when removing the assembly (13) to pre-
vent any damage occurring to the internal insulation of
the combustion chamber and the door seal.
Cleaning the burner and the combustion
chamber
Final operations
place if necessary
combustion chamber are integral. Replace if necessary
removal but in the reverse order and tighten the screws (11)
of the door to the combustion chamber
Checks
Checking the smoke duct
Checking the expansion vessel pressure
. If this is not the case, pressurize it to the correct value
smoke analysis and/or measure the combustion efficiency
were removed previously.
Unscheduled maintenance
No.
Description
Index showing boiler power in kW
01
0=24; 1=25; 2=30; 3=35; 4=40
Hydraulic configuration
0 = rapid
1 = storage tank with thermostat or
02
heating only
2 = hot water tank with sensor
3 = two programmer
Gas Type Configuration
03
0 = G20; 1 = LPG
Combustion configuration
0 = sealed chamber with combus-
04
tion control
1 = open chamber with smoke
thermostat
Setting
1
1 or 2
0 or 1
0
83