A
B
en
32
N 2 Condens :
664Y5000 • C
EN
FR
NL
ES
IT
DE
PL
RU
MAINTENANCE
ANNUAL MAINTENANCE
Cleaning the combustion assembly
It is recommended to clean the boiler on a warm day as it will be switched off for a
few hours.
Cleaning the burner
1. Open the front panel.
2. Loosen the burner flange and put the burner in the maintenance position (see burner
instructions).
3. Carry out the cleaning (see burner instructions).
Cleaning the heating unit
1. Open the front panel.
2. Disconnect the burner.
3. Loosen the burner flange and remove the burner.
4. Open the heating unit door.
5. Using a brush, remove any accumulated soot from the heating unit and turbulators.
6. Check the braid is correctly positioned.
7. Close the door and tighten it with sufficient torque to ensure the flue gas tightness.
8. Close the front panel.
Cleaning the condenser
1. Disconnect the flue pipe at the flue outlet fitting.
2. Inspect the inside and clean if required:
• If the condenser is slightly clogged, pour in a mixture of water and liquid soap (of the
washing-up liquid type).
• If the condenser is considerably clogged, open the rear lateral panel, or the rear
panel (
A
), in order to get to the condenser. Open the condenser (
B
) and clean it using a
synthetic brush. Do not use the same brush as that used to clean the heating unit,
so as to prevent the risk of corrosion.
3. Close the condenser, the rear panels and reconnect the flue pipe.
