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User instructions
for the user
to respect the prescriptions included in the national and local regulations and laws, in
addition to the slopes and measurement included in the paragraphs “Chimney con-
nections” and “Flue systems”.
Note for the TECHNICIAN: The burner flame is not detected by the Flame Control Unit becouse it has not
turned on or it has suddendly turned off, or it has detached from the burner, because of an incorrect
combustion. This can be due, in exemple, to combustion product reflowing into inlet duct, leaks in inlet/
outlet ducts or errors in sizing of ducts (ducts length above or below the allowed, and/or wrong use of
restrictor on boiler’s outlet).
— “E” models with Natural Draught only: the device which signals the wrong Flue
Outlet has intervened;
Exceptionally the cause can be a strong wind gust.
Restore the service turning the SUM-
MER/WINTER selector in the Unlock
Position until the red lamp turns off. In case of
frequent Locks:
•
Check the efficiency of the Flue.
•
Check that the outlet which communicates with the outdoor, compulsory according
to the law, is not obstructed by pieces of furniture against the wall or by other objects.
It is however normal that the outlet is realized behind a radiator.
The outlet must be of
the dimension prescribed by the law and must be cleaned inside: some types have
an anti-insects net which could have been dirtied by dust or by spider’s webs. Call a
Qualified Technician when it is necessary.
•
If in the room where the boiler is installed there are mantelpieces, stoves, coal stoves
or similar, fans for the Air Outlet, such as wall fans, aspiring cowls for cooking boards
with outlet pipe, let the technician check that the inlet is correctly OVERSIZED or that
there are the ADDITIONAL Inlets as prescribed by the laws in force, because, other-
wise, these devices interfere with the evacuation of the Boiler’s Flue.
Boiler inactivity
The effects of the periods of inactivity can be relevant in particular situations such as in flats used
only for some months per year, most of all in cold places.
The user will have to decide to put the boiler in the SAFETY LOCK OUT state disconnecting all the
supplies, or to leave it in stand-by and use the Anti Freezing Function. In general it is better to
use the SAFETY LOCK OUT. When there is the possibility of freezing it is convenient to chose
between the advantages and the disadvantages of the SAFETY LOCK OUT and of the Stand By/
Anti Freezing Way.
SAFETY LOCK OUT
— Turn off the general switch on the Electrical Supply Line of the Boiler;
— Close the Gas Tap;
When it is expected that the temperature is going to decrease under 0°C and the system
doesn’t include the Anti Freezing Function, empty the heating system totally, or fill it with an
Anti Freezing Solution, and empty the tank.
Notice that if it had been necessary to restore the pressure (because of possible loss) in an
heating system already filled with an Anti freezing solution, the concentration of the system
could have decreased and it could not guarantee the Anti freezing Protection.
