64
COMMISSIONING AND MAINTENANCE
4.8.2
Boiler exchanger cleaning
Proceed as follows to access the internal parts of the boiler:
− remove the fixing screw (2) and extract the front panel (1);
1
2
− Close the fuel shut-off cocks;
− disconnect the connector (3);
3
− Remove the four fastening nuts (4).
4(*)
4(*)
4(*)
4(*)
(*)
tightening torque 15 Nm
− The smoke chamber is supported on two telescopic tubes
(5) that can slide outwards to facilitate cleaning opera-
tions.
− Pull out the front closure (6) of the smoke chamber com-
pletely, pulling it slowly towards you.
9
During this phase, be careful not to rotate the smoke cham-
ber as this may damage the burner or other components of
the control box.
5
6
