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SFL
4. SERVICE AND MAINTENANCE
All adjustment, commissioning and periodical inspection operations described below
must only be carried out by Qualified Personnel (meeting the professional technical re-
quirements prescribed by the current regulations).
FERROLI declines any liability for damage and/or injury caused by unqualified and un-
authorised persons tampering with the unit.
4.1 Adjustments
Secondary air adjustment
The secondary air control device must be set during the commissioning stage.
Adjust the air inlet door adjustment screw so that in any case there remains an air pas-
sage of not more than 1 - 2 mm. With the boiler cold, set the thermostat to 60°. Hook the
chain to the special air inlet door eyelet, adjusting its length so that the air passage "L"
(fig. 2) is approx. 15 mm for "coke III" and 2 mm for "wood".
4.2 Startup
B
Checks to be made at first lighting, and after all maintenance operations that
involved disconnecting from the systems or operations on safety devices or
parts of the boiler.
Before lighting the boiler
•
Open any on-off valves between the boiler and the systems.
•
Check correct prefilling of the expansion tank
•
Fill the water system and make sure that all air contained in the boiler and the sys-
tem has been vented.
•
Make sure there are no water leaks in the system, connections or boiler.
•
Check correct connection of the electrical system and efficiency of the earthing system
•
Make sure there are no flammable liquids or materials in the immediate vicinity of
the boiler
Checks during operation
•
Turn the unit on as described in sec. 2.3.
•
Check the seal of the water systems.
•
Check the efficiency of the flue and air-fume ducts while the boiler is working.
•
Check that the water is circulating properly between the boiler and the systems.
•
Check the seal of the wood loading and combustion chamber doors.
•
Check combustion and correct setting of the secondary air control device.
4.3 Maintenance
Instructions
B
- Before carrying out any maintenance operation, disconnect the power to the
boiler and wait until it is at room temperature.
- Never drain (even partially) the water from the system unless absolutely nec-
essary.
- Do not clean the boiler and/or its parts with easily flammable substances (e.g.
petrol, alcohol, etc.).
- Do not leave containers of flammable substances in the room where the boiler
is installed.
- Do not clean the heating system when the boiler is operating.
- Use tube brushes and aspirators for cleaning; if rags are used, make sure
they are not left inside the boiler.
- If the ash is still hot, wear protective gloves.
- Put the ashes in a non-flammable container provided with lid.
Regularly or the end of every period of operation, carefully clean the boiler, and also the
flue if necessary. To clean the boiler, open both cast-iron doors, remove the coal grate
then, with a flexible metal tube brush, carefully clean the combustion chamber and the
various flueways. Then remove any soot deposited in the ashpan. Also make sure the
fume exhaust pipes and flue are clean and perfectly tight.
Periodical check
To ensure correct operation of the unit over time, have qualified personnel carry out a
yearly check, providing for the following:
•
Check and if necessary clean the boiler and fume ducts as described in the previous
section.
•
Check the burner plates.
•
Check the tightness of the loading and ash door; replace the seal if necessary.
•
The control and safety devices must function correctly.
•
The fume exhaust circuit must be perfectly efficient.
•
The fume ducts must be free of obstructions and leaks
•
The water pressure in the system when cold must be approx. 1 bar; otherwise, bring
it to that value.
•
The circulating pump must not be blocked.
•
The expansion tank must be filled.
•
A possible pellet burner (with optional kit) must be checked according to the instruc-
tions provided with the burner.
5. TECHNICAL DATA AND CHARACTERISTICS
260
a1
Model
SFL 3
SFL 4
SFL 5
SFL 6
SFL 7
a1
System delivery - Ø 1"1/2
a2
System return - Ø 1"1/2
a3
System drain - Ø 1/2"
a4
Flue
a5 - a6 Safety coil connections
a7
Safety coil sheath connection
cod. 3540Z905 - Rev. 00 - 04/2014
520
a2
a3
260
213
fig. 18 - Dimensions and connections
L
510
620
730
840
950
a7
a1
a5 a6 a4
L
a4
Ømm
150
180
15
EN
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