Use And Maintenance; Commissioning The Boiler; Lighting And Operation; Regular Cleaning - Sime Rondo B 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 (fig. 6)
To light the boiler proceed as follows:
– 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 (fig. 6)
The manually reset safety stat (3) trips
to switch-off the burners immediately
when the boiler temperature exceeds
95°C. To restart the boiler, unscrew
the black cover and press the button
underneath. If the problem occurs fre-
quently, call an authorised technical
assistance centre for the necessary
checks to be carried out.
3.2.3 System filling (fig. 6)
Periodically check the pressure values
of the hydrometer (4) which, 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 (fig. 6)
To turn off the boiler, cut off the voltage
by pressing the mains switch (1).
3.3

REGULAR CLEANING

Maintenance of the boiler should be
carried out annually by an authorised
service engineer.
Disconnect the boiler from the elec-
trical supply before servicing or main-
tenance is carried out.
3.3. 1 Smoke side boiler (fig. 7)
To carry out cleaning of the smoke pas-
1 2 3 4
8 7 6 5
RONDÒ B4
RONDO' 3/4
ESTELLE 3/4
RONDÒ B5
RONDO' 5/6
ESTELLE 5/6
sages remove the screws that fix the
door to the body of the boiler and with
the special cleaning brush clean the
internal surfaces and the smoke evac-
uation tube well, removing any
deposits.
Once the maintenance is compled, the
baffles have to be fitted onto the origi-
nal positions.
3.3.2 Tank unit
protection anode
The magnesium anode (9 fig. 2) pro-
tects the boiler from galvanic currents;
the durability of the anode will depend
on the quality of the local water supply.
Check the magnesium anode peri-
odically; replace when exhausted.
Failure to renew
anodes will render the guarantee
null and void.
The anode is fitted to the front of the
boiler for easy access.
3.3.3 Dismantling the skirt (fig. 8)
To dismantle the skirt, perform the fol-
lowing steps in order:
– dismantle the burner
– remove the cover (5) anchored on
Fig. 6
Fig. 7
exhausted
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