90
TURNING OFF BOILER
To turn off the boiler set the switch to “OFF”
and close the gas-feeding pipe tap if the boi-
ler remains inoperative for a long period
(fig. 1).
SYSTEM FILLING (
fig. 4)
Check periodically that the thermomanome-
ter shows a reading of between 1 - 1.2 bar
(1), with the system cold.
If the pressure drops below the blue scale
(1), the boiler will not operate.
To re-set the pressure, rotate the charging
valve to the anticlockwise direction until the
thermomanometer reading re-enters the
blue scale (1).
ONCE THIS OPERATION IS COMPLETED,
MAKE SURE THE TAP IS CLOSED.
In case the pressure goes above the limit,
empty the exceeding pressure by opening
the pressure relief valve on any radiator.
The blue part of the scale (2) indicates the
working pressure range with the heating in
operation. Should the pressure exceed the
values of the blue scale (2), causing the
safety valve intervention, call the authorized
technical staff.
"25 OF C - 30 OF C" SMOKE
SAFETY DEVICE
This is a safety device against possible
smoke emission into the ambience.
The safety device switches off the gas valve
when the return of the smokes into the
ambience is continuous and then dange-
rous. The intervention of this device locks
out the appliance because the burner is not
ignited. In this case, turn the rotary switch
to the
position
(fig. 3)
nd release it imme-
diately, then turn it back to the summer
or winter .
Should the boiler “lock out” again, you
must call the authorized technical staff.
GAS CONVERSION
Should it be necessary to convert the
appliance to a different gas from the one
for which the boiler has been equipped,
approach the technical staff.
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 equipment
and safety devices must be carried out
exclusively by the authorized technical
staff.
The boiler is supplied with an electric
cable. Should this require replacement,
contact exclusively with the authorized
technical staff.
Fig. 3
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