21
−
adjust the ambient thermostat to the
required temperature (~ 20°C) or, if
the system is equipped with a timed
thermostat, make sure it is “active”
and adjusted (~ 20°C),
1
2
3
4
5
6
−
move the domestic hot water temper-
ature selector (6) to the desired posi-
tion,
−
Move the heating system water tem-
perature selector (4) to the desired
position.
SUMMER MODE:
move the mode selector (5) to
(summer),
the boiler will produce domestic hot water
from the storage cylinder.
The display indicates the domestic hot water
temperature.
WINTER MODE:
move the mode selector (5) to (winter),
the boiler will produce domestic hot water
and water for heating. The display shows the
delivery temperature of the heating water
or the domestic hot water, according to the
current request.
Heating water temperature
Domestic hot water temperature
WINTER MODE WITH PRE-HEATING:
move the mode selector (5) to (winter
with pre-heating). with the selector set to
this function, in addition to the convention-
al heating and domestic hot water function,
the pre-heating function is also activated to
keep water in the hot water heat exchanger
warm in order to reduce wait times during
usage.
The display shows the delivery temperature
of the heating water or the domestic hot wa-
ter, according to the current request.
Heating water temperature
Domestic hot water temperature
The following conditions may occur when
operating:
−
If there is no heat request, the boiler
will go into standby,
−
if there is a heat request, the boiler
starts and the flame comes on, while
the signal light is green and fixed (1).
