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3062087_0207
Service
Cleaning the gas burner:
- Switch OFF the boiler at the ON / OFF switch, isolate it from
the power supply and close the gas shut-off valve.
- Remove the casing lid of the gas fired boiler. For this, pivot
the control unit lid down, hook in the r.h. and l.h. turn buckle,
undo the bottom of the casing lid and unhook at the top.
- Push the retaining clip of the front cover up or down out of the
way and remove the front cover.
- Pull the cables off the electrodes.
- Remove the four burner retaining screws (slotted screws;
Philips screw H) and pull out the burner with the air
deflector(s).
- Remove combustion residues with a brush (non-metallic
brush).
- Clean the nozzles and injectors, if required, with a soft brush
and compressed air.
- Wash severely contaminated burners with a soapy solution
and rinse with tap water.
- The burner is refitted in reverse order, but only after cleaning
the heating water heat exchanger.
Cleaning the heating water heat exchanger:
- Pull the cables from the fan.
- Undo the fan fixing screw and remove the fan.
- After undoing both fixing screws, remove the front wall of
the combustion chamber.
- Pull the flue gas collector box out of the front.
- Clean the heating water heat exchanger from the top and the
bottom with a brush (non-metallic) and, if required, blow off
residues with compressed air.
During this step, take care not to bend the fins. If necessary
straighten them with a pair of pliers.
- Reassemble the components in reverse order.
- Reinstall the gas burner.
- Refit the front cover.
Fixing screws
Electrode
Air deflector
NB: Carry out in parallel with the other side
Fixing screws
Flue gas
collector box
Fan fixing screw
