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EN
1. GENERAL WARNINGS
•
Carefully read and follow the instructions contained in this instruction booklet.
•
After boiler installation, inform the user regarding its operation and give him this
manual, which is an integral and essential part of the product and must be kept with
care for future reference.
•
Installation and maintenance must be carried out by professionally qualified person-
nel, in compliance with the current regulations and according to the manufacturer's
instructions. Do not carry out any operation on the sealed control parts.
•
Incorrect installation or inadequate maintenance can result in damage or injury. The
Manufacturer declines any liability for damage due to errors in installation and use,
or failure to follow the instructions.
•
Before carrying out any cleaning or maintenance operation, disconnect the unit from
the electrical power supply using the switch and/or the special cut-off devices.
•
In case of a fault and/or poor operation, deactivate the unit and do not try to repair
it or directly intervene. Contact professionally qualified personnel. Any repair/re-
placement of the products must only be carried out by qualified personnel using orig-
inal replacement parts. Failure to comply with the above could affect the safety of
the unit.
•
This unit must only be used for its intended purpose. Any other use is deemed im-
proper and therefore hazardous.
•
The packing materials are potentially hazardous and must not be left within the
reach of children.
•
The unit must not be used by people (including children) with limited physical, sen-
sory or mental abilities or without experience and knowledge of it, unless instructed
or supervised in its use by someone responsible for their safety.
•
The unit and its accessories must be appropriately disposed of, in compliance with
the current regulations.
•
The images given in this manual are a simplified representation of the product. In
this representation there may be slight and insignificant differences with respect to
the product supplied.
2. OPERATING INSTRUCTIONS
2.1 Introduction
The SFL is a new cast-iron boiler for heating, using solid fuels (wood and coke), or pellets
(with optional kit). The boiler shell consists of elements assembled with nipples; the pro-
file of the elements has been carefully designed with optimum division of the fins to en-
sure high thermal efficiency, high performance and considerable energy-saving. The
combustion chamber is specially designed to take large pieces of wood; loading is
through the large top door. The combustion chamber is completely wet; which ensures
long life and high efficiency.
2.2 Control panel
5
Thermometer
6
Draught thermostatic regulator
2.3 Lighting and turning off
Fuel
The boiler must only burn coke or natural wood that has not been treated. It is also pos-
sible to use pressed and briquette fuels provided they are entirely of wood. A pellet burn-
er can be fitted to the boiler with the optional conversion kit. Refer to the instructions
supplied with the burner for the lighting, shutdown and maintenance operations.
B
The combustion of waste, plastic or liquids can produce poisonous burnt gases
with the risk of poisoning, death or explosion.
•
Use the recommended fuels only.
•
Shut down the boiler in case of danger of explosion, fire, burnt gases or fumes.
•
The boiler must only be used by adults who are familiar with its operation and the
instructions.
•
The user is only authorised to light the boiler, set the heating temperature, shut
down the boiler and clean it.
•
Keep unsupervised children away from the boiler when in use.
•
Never burn any liquids or use them to increase< boiler performance.
•
Clean the surface of the boiler with non-flammable agents only.
•
Never place any flammable objects on or near the boiler.
•
Never place any flammable materials in the boiler room (e.g. wood, paper, petrole-
um, gas oil).
10
EN
6
fig. 1 - Panel
cod. 3540Z905 - Rev. 00 - 04/2014
Wood is an extremely heterogeneous fuel due to its type, moisture content, shape and
dimensions. Boiler thermal efficiency depends on the type of wood used, its moisture
content, the method of loading and the size of the pieces. Excellent quality woods are
oak, ash, beech, maple and fruit trees except cherry, good quality woods are chestnut
and birch, while woods of sufficient quality are lime, poplar and willow. Resinous ones
are generally mediocre fuels. The higher the wood moisture content, the lower the heat-
ing power. Using damp fuels causes a loss of efficiency. Use logs in their natural state
that have been dried in the open air (stored for 2 years with maximum humidity 20%).
Boiler lighting (operation with wood or coke)
•
Open the bottom door and remove any ash from the combustion chamber. Close
the bottom door.
•
Turn thermostatic regulator knob 6 to the required temperature value.
•
Open the top door. Put some paper and small pieces of dry wood on the burner grate.
•
Light the fuel and add some slightly larger pieces of wood.
•
Close the door and wait for an initial bed of embers to form.
•
Open the top door slowly.
•
Spread the embers evenly over the burner plate using a poker.
•
After the bed of embers has formed on the main plate, it is possible to start loading
the firewood or coke in small and medium-sized pieces.
B
- Pieces that are too long will not fall properly, causing gaps in the wood box
and forming areas of unburnt wood.
- Pieces that are too short cause uneven air flows, with a reduction in power
and efficiency
- Always open the top door slowly to avoid puffs of smoke
- Never open the bottom door during operation.
- When loading, avoid keeping the top door open for long periods.
- In case of reduced performance, distilled gases can form at low temperature,
which can cause smoke poisoning if inhaled.
- If dense smoke can be seen, do not breathe it.
- Make sure the room is well ventilated.
- Clean the boiler and the gas flueways as specified.
Boiler shutdown
To shut down the boiler, allow all the fuel to burn.
Shutdown for brief periods
For brief shutdown periods, once the fuel has been consumed and the boiler cooled:
•
Clean the support surfaces of the loading door and loading compartment.
•
Remove the ash and clean the combustion chamber.
•
Close the ash door and loading door.
Shutdown for long periods
To put the boiler out of service for long periods (e.g. at the end of the cold season), care-
fully clean the boiler to prevent corrosion.
5
B
To avoid damage caused by freezing during long idle periods in winter, it is ad-
visable to drain all water from the boiler, or add a suitable antifreeze to the heat-
ing system, in compliance with that prescribed in sec. 3.3.
2.4 Adjustments
Important
To prevent condensate from forming in the combustion chamber, it is advisable to turn
the control knob to 60°C; it would be best to turn it to 80°C and adjust the heating water
temperature with the mixer valve.
The only manual operations necessary are:
-
Periodical cleaning of the firebox through the front grate, with removal of ash, open-
ing the bottom door.
-
Periodical loading of the firebox through the special top door.
System pressure adjustment
Periodically check that the system is full of water. These checks must be carried out cold,
checking the expansion tanks (open types must have water at the initial level, whereas
in closed types the pressure must be equal to or higher than the initial prefilling pressure).
SFL
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