40
TECHNICAL ASSISTANCE SERVICE
TECHNICAL ASSISTANCE SERVICE
4.6
Cleaning the boiler
9
DANGER:
Risk of death due to electric shock!
− Prior to opening the unit: disconnect the power supply
and block it to prevent accidental reactivation.
9
WARNING:
Damage to the system!
− Do not use abrasive cleaners or powder detergents.
9
WARNING
: The combustion chamber and flues must be
cleaned periodically - at least once a year - by a qualified
technician.
The cleaning of the boiler and the removal of carbon deposits
from the exchange surfaces must be carried out at least once
a year.
This is an essential condition for the life of the boiler and to
maintain the thermotechnical performance (economy of con-
sumption).
− Open the front door (1);
− Remove the turbulators (2), check their state of wear and
the opening of the fins (replace if necessary);
− Clean the internal surfaces of the combustion chamber
and the flue gases using a brush (3) or other suitable
tools.
3
2
1
− Remove the residues removed from the flue gases cham-
ber through the inspection openings (4).
If more thorough cleaning is needed:
− Remove the external panels.
− Unscrew the fixing bolts and pull energetically to remove
the flue gases chamber closure (5).
− Check at regular intervals that the condensate drain out-
let (6) is not blocked.
− If necessary, replace the sealing gasket (7).
Proceed as follows on completion of cleaning:
− Reposition the turbulators in the smoke pipes, checking
that the stop is in contact;
− Reassemble the components operating in the reverse or-
der to that described.
Apply a tightening force of 8 Nm to the retaining nuts.
7
5
6
4
4
