Inspections and maintenance
47
Boiler body maintenance
Danger!
Before performing any maintenance, make
sure the boiler and its components have
cooled down.
Warnings
Never drain water from the system, even partially, unless
absolutely necessary.
Periodically check the proper operation and integrity of the flue
gas exhaust pipe and/or device.
If work or maintenance is performed on the structures near the
flue gas pipes and/or flue gas exhaust devices and their ac-
cessories, switch the appliance off and, when the work is over,
check their efficiency.
Do not clean the boiler and/or its parts with easily flammable
substances (e.g. petrol, alcohol, etc.).
Do not leave flammable substances in the room where the boiler
is installed.
Do not clean the boiler room while the boiler is running.
At the end of each heating period, inspect the boiler to keep the
system in perfect efficiency.
Thorough maintenance always enhances energy saving and
safety.
IMPORTANT
Use brushes and a vacuum cleaner to clean the
boiler; if rags are used, make sure they are all
recovered.
Keep screws and nuts greased.
CLEANING AND ROUTINE MAINTENANCE OF
THE WOOD FIRED BOILER
Daily
- Remove the ashes from the lower cradle.
- Shake down, with the scraper supplied with the boiler,
the embers so that the ashes, accumulated in the fire
bed will fall down through the slots in the grate. This
operation will help to avoid the grate from becoming
obstructed and the subsequent bad operation of the
boiler. This operation has to be done when the flame
dies down, before loading wood.
Weekly
- Remove carefully all the residues of combustion accumulated
in the firewood storage compartment.
- Remove the ashes from the lower combustion chamber.
- Make sure the slots on the grate are not obstructed: if they
are, free them with the poker.
- If the boiler continues to operate badly, even after having
cleaned it as described above, the cause can be attributed
to bad distribution of the secondary air.
In this case:
1) Check the adjustment of the air setting, according to the
instructions given in the paragraph “Combustion air
adjustment”.
2) Check that the two adduction holes for the secondary air
placed in the grate seat are not obstructed: if they are, pass
a
soft brush
in this pipe.
Check that the fire bars and steel grate are positioned
correctly and that the side insulation wool is in place.
Monthly
Check that the bypass is working as indicated in paragraph
6.5 and that when the loading door is closed, the bypass is
hermetically sealed.
SPECIAL MAINTENANCE OF WOOD FIRED
BOILER
At the end of each heating season, perform a
general cleaning of the boiler by removing all the
ashes from the firewood storage compartment.
It is also recommended to clean the rear heat
exchanger acting as follows:
- Disconnect power to the boiler by turning the upstream main
switch off.
- Remove the upper rear casing cover.
- Lift the rear insulation (pos. 1) and place it at the side of the
casing.
- Remove the upper cover of the smoke chamber (pos. 2.
- Remove the bottom back panel (pos. 3.
- Open the bottom rear door (pos. 4.
- Disassemble the fan (pos. 5) and clean the impeller from
incrustations.
Normally with the use of compressed air or a brush it is
possible to clean it properly.
If the incrustations are more resistant, due to the formation
of condensate or tar dripping, clean very carefully in order
not to bend or deform the blades.
This could make the fan noisy during operation and could
reduce the fan’s performance.
- Remove the smoke chamber inspection door (pos. 6 and 7).
- Remove the fixing split pins of the turbulators (pos. 8) and
pull the turbulators (pos. 9) from their seats by moving the
support levers sideways.
- Clean the vertical smoke pipes using the pipe brush supplied
with the boiler.
- Vacuum all the combustion residue both from the smoke
chamber and from the bottom of the combustion chamber.
- Fit the turbulators in their respective seats making sure they
work properly by acting on the side control lever.
- Remount the top cover (pos. 2
- Remount the fan, making sure the gasket is airtight and
connect the electric power supply and the inverter cable.
- Remount the smoke chamber lower inspection door.
- Close the bottom rear door of the combustion chamber.
- Fit the bottom back panel.
- Put the upper insulation of the smoke chamber back in
place.
