Green Heating Technology
11
Incidental malfunctioning
Avoid performing personally any intervention that are job of the technician, for example the
ones on the electrical circuits, on hydraulic system or on the gas system, and whatever other
operation that's not mentioned in this "User Guide" section and expressly allowed to the User.
Always address yourselves to qualified personnel.
Boilers must be always equipped with original accessories only.
ITALTHERM Srl is not responsible for damages caused by the incorrect, wrong or unreasonable
use of not original materials.
The burner doesn’t turn on
f
if the room thermostat (or programmable room thermostat, or similar) is installed, check that it is
really requiring the room heating;
f
be sure the boiler is set on winter
+
or summer
mode (not in
OFF
). The reference symbols
must be shown on the display (see "The front control panel" on page 7);
f
in case the display shows
or
, or in case the boiler seems to be working in an
inappropriate way, see "Alarms - boiler block" on page 32;
f
check on the gauge that the boiler pressure is correct (1÷1.5 Bar
in a cold state
) or at least
not below
0.5 Bar
�
Shortage of domestic hot water production
f
check the DHW temperature is not set on a too low value: if so, adjust it (see "Temperature adjust-
ment" on page 10);
f
call a qualified technician to check gas valve regulation;
f
call a qualified technician to check, and eventually clean, the coil of the DHW storage.
Remark: where the water hardness value is too high, it is suggested the installation of a soften-
ing device, in order to prevent the limestone precipitation; this operation avoids a frequent
cleaning of the coil of the DHW storage.
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 SHUT OFF state
disconnecting all the sup-
plies, or to
leave it on OFF mode (but electrically supplied) in order to let the Anti Frost Function work
�
When there is the possibility of freezing it is convenient to chose between the advantages and the dis-
advantages of the SAFETY SHUT OFF and of the Stand By/Anti Freezing Way.
Safety shut off
f
Turn off the general switch on the Electrical Supply Line of the Boiler;
f
Close the Gas Tap;
When it is expected that the temperature is going to decrease under 0°C, call a technician to do
the following:
• Fill the system, included the primary circuit of the storage unit and the relevant coil, with an
anti-freezing solution (unless the system was already filled with said solution) otherwise it must
be completely emptied. Notice that if it had been necessary to restore the pressure (because of
