11.2.2 Removing the burner
1. Switch off the mains supply to the boiler.
2. Close the gas inlet valve.
3. Close the valves on the heating circuits.
4. Access the internal boiler components.
5. Disconnect the power and command cables on the fan.
6. Disconnect the ignition electrode and the flame detection sensor.
7. Remove the pipe connecting the gas valve to the Venturi unit.
Version
Boiler model
A
IX 145–50
B
IX 145–70
IX 145–90
IX 145–110
Fig.114
MW
-3
0
0
0
1
2
7
-0
3
5
5
Fig.115
MW
-3
0
0
0
1
2
8
-0
2
6
Fig.116
7
MW
-3
0
0
0
1
0
7
-0
1
7
A
B
11 Maintenance
7702703 - v04 - 05092019
IX
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