21
deviate from the value set by approxi/-1.5 mbar) carry out the
following operations:
h
Place the electric switch of the system to off
h
Remove the casing by unscrewing the fastening screws located at the
bottom of the water heater and detached the casing from the top
h
Remove the cover that closes the service inlet (located on the
shelf - Fig 11) and insert through the hole the silicon pressure
gauge tube
h
Loosen by approximately two turns the screw of the pressure tap
downstream of the gas valve and connect the pressure gauge to it
h
Carefully close the casing and place the electric switch of the sys-
tem to on
h
Access the Calibration Menu
h
Open the hot water tap and wait until ignition of the burner.
Upon activation of the menu will appear first the word
Ma
and then the
word
to
to compose
Manu
and
will appear, indicating that the
water heater is operating at maximum capacity.
h
Turn the knob until visualize on the pressure gauge the maximum
burner pressure (see data table)
h
To store the value press the reset button
h
Press the reset button to select the next lowest setting value
h
Turn the knob until visualize on the pressure gauge the minimum
burner pressure (see data table)
h
To store the value press the reset button
h
Press the reset button until MENU’ flashing, release the button:
the display shows
h
Press again the reset button until the display shows MENU’ flashing,
release the button: the display shows the set point temperature
h
Close the hot water tap.
The calibration operation ends automatically after 15 minutes
of inactivity or in the case of overheating (67°C)
Alarm history menu
This feature allows displaying of the last 10 errors that have occurred on
the appliance.
Upon activ
ation of the menu, the figures
(index of the last stored
error), the error code and the word
(e.g.:
=>
=>
)
will appear alternately.
Turning the knob it is possible to scroll through the errors index. Display
ranges from the most recent to the earliest.
If the user pauses, the display shows the letters AL to indicate access
within the errors history menu.
Press th
e reset button until MENU’ flashing, release the button: the di
-
splay shows
.
Press again the reset button until the display shows MENU’ flashing, rele
-
ase the button: the display shows the set point temperature.
Info menu
This feature allows displaying:
h
Last version of software review
h
Hot water temperature in direct
h
Hot water quantity
in direct (l/min).
This menu is active during all the production of instant hot water.
Exiting the menu takes place automatically after 15 minutes of inactivity
or by pressing the reset button.
Fig. 24 - “Alarm History Menu” Activation
Fig. 23 - “Calibration Menu” Activation
Fig. 25 - “Info Menu” Activation
