92
USER INSTRUCTIONS
WARNINGS
–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.
LIGHTING AND OPERATION
BOILER IGNITION
Open the gas valve and light the appliance
by turning the rotary switch to summer
position
(fig. 1).
The green led indicates that electricity is
being supplied to the appliance.
–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 selected tem-
perature.
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 reached
the value set on the heating potentiome-
ter, it will start to modulate in automati-
cally in order to supply the required
power output to the system.
The operation of the boiler will be stop-
ped through the intervention of the ther-
mostat or timer.
TEMPERATURES ADJUSTMENT
–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 40 to 60°C (fig. 2).
–The C.H. temperature can be adjusted by
turning the knob of the C.H. potentiome-
ter
which has a range of between 40
to 80°C.
To ensure optimal boiler efficiency at all
times, we recommend not to drop below
a minimum working t emperatur e of
50°C (fig. 2).
LOCK OUT RESET OF
THE CONTROL BOX
If the burner does not ignite, the red lock
out indicator
will light up (fig. 3).
In order to re-attempt boiler ignition, place
the rotary switch to the
position and
release it immediately, then turn it back to
the summer
or winter
.
Should the appliance again “lock out”,
please approach the authorized technical
staff.
APRE
0
30
60
90
120
bar
°
C
0
3
4
1
Fig. 1
Fig. 2
OPEN
