Sime SOLO 20 Instrucciones Para El Instalador página 77

SAFETY STAT
The safety stat is of the manually
resetting type and opens, causing the
main burner to turn off immediately,
whenever the temperature of 110°C is
exceeded in the boiler. To restore boil-
er operation, unscrew the black cap
and reset the button (fig. 21).
Should the appliance "lock out" again,
please approach the authorised tech-
nical staff.
BURNER RESTART
In case that ignition or operation faults
occur, the main burner "locks out" and
the red lamp lights up on the control
panel. Press the "RESET" button to
restart the ignition conditions until the
flame lights up (fig. 22). This operation
can be repeated 2-3 times at maxi-
mum and in case of failure contact the
authorised technical staff.
ATTENTION: Make sure that there is
fuel in the tank and that the taps are
open. After each fill up of the tank it
is advisable to interrupt the opera-
tion of the burner for about one hour.
TURNING OFF BOILER
It is sufficient to press the main switch
to turn off the boiler (fig. 17).
Close both the gas-feed pipe tap and
RESET
BUTTON
RESET
TWICE
ONLY
the water tap if the boiler remains
inoperative for a long period.
SYSTEM FILLING
Check periodically that the hydrometer
has pressure values at a switched-off
system of 1 - 1.2 bar. If the pressure is
less than 1 bar, re-charge it rotating
the knob anti-clockwise.
After the operation check that the tap
is properly closed (fig. 23).
Should the pressure exceed the fore-
seen limit, discharge the superfluous
Fig. 22
2
bar
1 3
0 4
60
40 °C 80
20 100
0 120
amount by operating on the vent knob
of any radiator.
CLEANING AND MAINTENANCE
At the end of each heating season, it is
essential to have the boiler thoroughly
checked and cleaned out.
Preventive maintenance and checking
of the efficient operation of the equip-
ment and safety devices must be car-
ried out exclusively by the authorised
technical staff.
2
bar
1 3
0 4
2
1 bar 3
0 4
60
40 °C 80
20 100
0 120
OPEN
Fig. 21
Fig. 23
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