49
3.1
COMMISSIONING
THE BOILER
When commissioning the boiler
always make sure that:
– the system has been filled with
water and adequately vented;
– the flow and return valves are
fully open;
– the flue and chimney are free
from obstructions;
– the electrical connections to the
mains and the earthing are cor-
rect;
– no flammable liquids or materials
are near the boiler;
– check that the circulating pump is
not locked.
3.2
LIGHTING AND
OPERATION
3.2.1 Lighting the boiler (fig. 6)
To light the boiler proceed as fol-
lows:
– switch on the main switch (1); the
green light turns on to indicate
that the appliance is powered (3).
The burner will start;
– set the stat knob (7) to the desired
D.H.W. temperature.
The boiler pump will continue
operating until the preset tem-
perature has been reached.
While the water is being heated,
the boiler will continue automatic
operation to maintain the heat-
ing temperature shown on the
thermometer (5) around 80°C by
means of the limit stat (6);
– once the water has been heated
with the selector (2) set to the
summer function position, the
burner and the circulating pump
will cease operation; when the
selector (2) is set to the winter
position, the system pump con-
trolled by the room stat will start
up.
In this case, operation of the burn-
er will be controlled by the boiler
stat (8) at the preset temperature;
– for best results, set the boiler
stat knob (8) to a temperature no
lower than 60°C to prevent the
formation of condensate.
The set temperature value can be
checked on the thermometer (5).
3.2.2 Safety stat (fig. 6)
The manually reset safety stat
(4) trips to switch-off the burners
immediately when the boiler tem-
3 USE AND MAINTENANCE
1
3
7
5
2
8
4
6
9
Fig. 6
WARNINGS
– In case of failure or malfunction of the equipment, contact authorised technical
staff.
– For safety reasons, the User cannot access the internal parts of the appliance. All
operations involving the removal of protections or otherwise the access to dan-
gerous parts of the appliance must be performed by qualified personnel.
– The appliance can be used by children under 8 years and by persons with redu-
ced physical, sensory or mental capabilities, or lack of experience or knowledge,
provided they are under supervision or after they have been given instructions
concerning the safe handling of the appliance and the understanding of the dan-
gers inherent to it. Never let children play with the appliance. Children without
supervision must not carry out cleaning and maintenance meant to be carried out
by the user.
