60
16 - USE
Figure 16-1 - Control panel
FIGURE 16-1 KEY
A - Key to reduce water temperature
B - Multifunction key: Key to Reset and access the “user
menu” and the “installer menu”
C - Key to increase water temperature
D - Burner state
Icon off = burner off
Icon on = burner on
E - State of heating or direct domestic hot water service
Icon off = Service off
Icon on = Service active but not working
Flashing icon = Service active and working
F - State of indirect domestic hot water service:
Icon off = Service off
Icon on = Service active but not working
Flashing icon = Service active and working
G - “Installer menu” access icon
H - Unit of measurement of the displayed pressure
L - Burner unit indicator
c
=
Burner 1 (master)
d
=
Burner 2
e
=
Burner 3
f
=
Burner 4
M - Water pressure or indicator of the different parameters
in the various menus
N - Heating or domestic hot water temperature or indicator
of the values assumed by the various parameters
O - Unit of measurement of the displayed temperature
P - Heating service adjusted by the external temperature
sensor
R - Key to increase the temperature of the indirect domestic
hot water storage tank and to change parameter values
S - Key to reduce the temperature of the indirect domestic
hot water storage tank and to change parameter values
T - on/off switch
16.1 - Checking water pressure
16.1.1 - Checking boiler water pressure
If the pressure inside the heating circuit drops below 0.5
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Err 59
to
show that correct pressure needs to be restored. To do so,
proceed as follows:
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XSVWUHDPRIWKHDSSOLDQFHWR¿OOWKHV\VWHP
FKHFNWKHSUHVVXUHRQYLHZ³0´LQ¿JXUHLWPXVW
reach a pressure of 1.5 bar (the
Err 59
warning
must disappear);
FORVHWKH¿OOLQJGHYLFHSURYLGHGE\WKHLQVWDOOHUXSVWUHDP
of the appliance.
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¿OOLQJGHYLFHSURYLGHGE\WKHLQVWDOOHUXSVWUHDPRIWKH
DSSOLDQFHWR¿OOWKHV\VWHPPXVWDOZD\VUHPDLQLQWKH
closed position.
If, over time, the pressure goes down, restore the correct
YDOXH,QWKH¿UVWPRQWKRIRSHUDWLRQLWPLJKWEHQHFHVVDU\
to repeat this operation several times to remove any air
bubbles in the system.
16.1.2 - Checking water heater system
pressure
If the pressure in the circuit drops to below the minimum
pressure value, the appliance automatically switches off
DQGGLVSOD\³1´LQ¿JXUHGLVSOD\V
Err 59
(see
section 16.16.2) to show that correct pressure needs
be restored. As the water heater is installed in an open
circuit, you must check the mains supply pressure or the
adjustment of any pressure reducers installed upstream.
When the value is reestablished,
Err 59
disappears
from the display.
T
020010.01.023
