S
Accessing the internal boiler components, page 37.
5. Disconnect the power and command cables on the fan.
6. Disconnect the ignition electrode, the safety thermostat and the
flame detection sensor.
7. Remove the pipe connecting the gas valve to the Venturi unit.
POWER HT+ 1.50
POWER HT+ 1.70
POWER HT+ 1.90
POWER HT+ 1.110
8. Remove the nuts holding the burner in place on the heat exchanger.
Fig.
135
Removing the cables from the fan
MW-3000127-01
5
Fig.
136
Removing the cables from the elec
trode, the thermostat and the sensor
MW-3000128-01
6
6
Fig.
137
Removing the connection pipe
MW-3000107-01
AB
Fig.
138
Removing the retaining nuts
MW-3000108-01
8
10 Maintenance
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