USER INSTRUCTIONS
– In case of fault and/or incorrect equipment operation, deactivate it, without making any repairs or taking any direct
action. Contact the nearest Authorised Technical Service Centre.
– The installation of the boiler and any servicing or maintenance job must be carried out by qualified personnel. Under
no circumstances, the devices sealed by the manufacturer can be tampered with.
– It is absolutely prohibited to block the intake grilles and the aeration opening of the room where the equipment is
installed.
– The manufacturer shall not be held liable for any damage caused by improper use of the appliance.
LIGHTING AND OPERATION
BOILER IGNITION (fig. 25)
Open the gas cock and position the index of
the selector knob in the following positions:
– With the rotary switch in the summer
position (
), the boiler will start-up
upon demand for domestic hot water,
and run at full power to reach the selec-
ted temperature.
The gas feeding pressure will then auto-
matically vary to ensure that the requi-
red temperature is kept constant.
– With the rotary switch in the winter
position (
), once the boiler has rea-
ched the value set on the heating poten-
tiometer, it will start to modulate in auto-
matically in order to supply the required
power output to the system.
The operation of the boiler will be stop-
WARNINGS
ped through the intervention of the room
stat or the chronothermostat.
ATTENTION: no noise is produced when
you position the index of the knob on the
desired setting.
TEMPERATURES
ADJUSTMENT (fig. 26)
– The D.H.W. temperature can be adju-
sted by turning the knob of the D.H.W.
potentiometer
which has a range of
between 30 to 60°C .
– The C.H. temperature can be adjusted by
turning the knob of the C.H. potentiome-
ter
which has a range of between 30
to 80°C.
Apre
OPEN
To ensure optimal boiler efficiency at all
times, we recommend not to drop below
a minimum working temperature of 50°C.
TURNING THE BOILER OFF (fig. 25)
When the selector is in OFF position, the
boiler is in standby, the green LED flashes
at intervals of five seconds and all featu-
res are disabled, except the pump anti-
blocking feature. Move the bipolar switch
to "OFF" to disconnect the unit from the
power supply.
If the boiler is not going to be used for a
lengthy period it is advised to turn off the
electricity supply, close the gas cock, and if
low temperatures are foreseen, empty the
boiler and the hydraulic system to avoid
breakage in the tubes due to the freezing of
the water.
GAS CONVERSION
Should it be necessary to conver t the
appliance to a different gas from the one
for which the boiler has been equipped,
approach the technical staff.
CLEANING AND
MAINTENANCE
Fig. 25
Preventive maintenance and checking of
the efficient operation of the equipment
IT
ES
PT
GB
Fig. 26
85