Use And Maintenance; Commissioning The Boiler; Lighting And Operation; Disassembly Of The Casing "Arb - Sime AR Serie Manual Del Usuario

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USE AND MAINTENANCE

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 correct;
– 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
To light the "AR" boiler proceed as fol-
lows (fig. 7):
– check that the "Testing Certificate"
has been removed from inside the
combustion chamber;
– switch on the main switch (1); the
burner will start;
– turn the boiler stat knob (8) to a
temperature no lower than 60°C.
The set temperature value can be
checked on the thermometer (5).
To start up the "ARB" boiler, proceed
as follows (fig. 7):
– switch on the main switch (1); the
burner will start;
– set the stat knob (7) to the desired
D.H.W. temperature.
The boiler pump will continue operat-
ing until the preset temperature has
been reached.
While the water is being heated, the
boiler will continue automatic opera-
tion to maintain the heating temper-
ature 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 sum-
mer function position, the burner
and the circulating pump will cease
operation; when the selector (2) is
set to the winter position, the sys-
tem pump controlled by the room
stat will start up.
In this case, operation of the burner
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
The manually reset safety stat (3 fig. 7)
trips to switch-off the burners immedi-
ately when the boiler temperature
exceeds 95°C. To restart the boiler,
unscrew the black cover and press the
button underneath. If the problem
occurs frequently, call an authorised
technical assistance centre for the
necessary checks to be carried out.
3.2.3 System filling
Periodically check the pressure values
of the hydrometer (4 fig. 7) which,
1 2 3
8 7 6
when the system is cold, should range
between 1 and 1.2 bar. If the pressure
is less than 1 bar, reset the system.
3.2.4 Turning OFF boiler
To turn off the boiler, cut off the voltage
by pressing the mains switch (1 fig. 7).
3.3 DISASSEMBLY OF
THE CASING "ARB"
To disassemble the casing of the
"ARB" boiler, proceed as follows (fig. 8):
– remove the cover (1) and the control
panel (3);
– remove the burner plate and the cen-
tral front panel (5) by unscrewing the
four screws securing it to the sides;
4
5
Fig. 7
Fig. 8
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