4
User’s operating instructions
Domestic hot water temperature control
Through this knob it is possible to allow
the preparation of the storage tank and to
adjust the temperature of the domestic hot
water:
With the pointer of the knob positioned
in the range shown beside it is
possible to adjust the temperature of
the domestic hot water. The
adjustment range is between a
minimum of 25°C and a maximum of
60°C.
If the rotating switch is in the position , the D.H.W.
circuit is not in operation (in this case no warm water is
available).
If, in the mean time, the rotating switch (A) is in the
position , the antifreeze function of the storage tank is
activated.
F button
ATTENTION!
Function not active for boilers with domestic
hot water production by storage tank.
MAX
MAX
6 - OPERATING INSTRUCTIONS
6.1 - CONTROL PANEL
E = Burner On indicator led (Green)
F = Not active
G = Reset /chimneysweeper mode key
H = Lock-out led indicator (Red)
I = System temperature control/pressure gauge
Summer/winter se Central heating
temperature control knob
By turning this knob it is possible to choose
the following operating modes:
- Summer (only DHW production)
- Winter (DHW production and central hea-
ting temperature control)
When the switch is in the
(Summer)
position the central heating mode is exclu-
ded. However, the frost protection mode
remains enabled.
With the knob in the position indicated
in the figure, the boiler is in the “Winter”
mode, and controls the central heating
hot water flow temperature. The tempe-
rature can be adjusted between 30°C
minimum and 80°C maximum.
A = Domestic hot water temperature control
B = Summer/winter se Central heating temperature
control knob
C = Power On indicator led (Green)
D = Central heating mode indicator led
MAX
M
IN
SERVICE:
MAX
B
C
A
D E
H
G
I
F
