Riello 20165080, Installation, Operation And Service Manual

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48
SHUTDOWN
5.3 Cleaning the boiler
Clean the boiler and remove any carbon deposits from the sur-
faces of the heat exchanger at least once a year . This not only ex-
tends the boiler’s working life, but also keeps it efficient in terms
of heat output and fuel consumption.
Proceed as follows to clean the boiler:
− Open the front door (1) and remove turbolators (2)
− Use a flue brush (3) or other suitable tool to clean inside the
combustion chamber and the flue gas pipes
B
1 2 3
9
The first time opening the door, remove the spare hinge as-
sembly (B) (bushing, bolt, and washer) opposite the pivot side
of the door.
Remove the deposits accumulated in the flue box through the
opening of the inspection door (4).
If more thorough cleaning is required, remove the outer panels,
unscrew the eight fixing bolts (5) and pull firmly on the flue gas
box (6) to remove it from the boiler.
Check at regular intervals that the condensate drain (7) is not
blocked.
6
5
4
7
If necessary, replace the seal (8).
8
On completion of cleaning, follow the above steps in the reverse
order to refit all removed parts.
Use a tightening force of 8 Nm/6 ft-lbs on the retaining nuts.
8 Nm/6 ft-lbs