Ariston PRO1 ECO 120 V 2K Instructions Pour L'installation, Emploi Et Entretien page 19

Two operating modes are available:
1) Manual temperature adjustment (refer to the "Temperature adjustment and function activation" paragraph):
with the "ECO" button off, the "manual" mode activates. In this mode, the product continues to fulfil the user's energy
demand, though without modifying the temperature selected by the user. Once the "ECO" button is pressed, the
corresponding LED lights up and the "ECO EVO" function restarts, which in this case is effective since the outset as
the "learning" phase has already occurred;
2) ECO EVO:
- After one week of continuous learning, at every moment the water heater generates the hot water quantity
according to a statistical demand forecast which is updated over time: to do this, the temperature is automatically
determined and will be always comprised between a Tminimum=40°C and the maximum temperature set by the
user (by default, the maximum temperature is equal to the value appearing in the technical sheet [Annex A]).
- Prolonged pressing of the "ECO" button causes the corresponding LED to flash for roughly 4 seconds and the
learning process starts from the beginning (from the first week). This action is used to delete the user's needs
from the memory and restart (hard reset).
- Warning: when the "ECO" LED is lit, pressing the "+/–" buttons or the "ECO" button allows for accessing the
manual mode described above (the "ECO" LED switches off).
In order to ensure correct operation of the ECO EVO function, the product should not be disconnected from the
mains electricity.
SHOWER READY
The Shower Ready LED (B, Fig. 3) indicates whether there is hot water for at least one shower. The quantity of hot water
is determined by internal parameters and varies according to the model.
MAX FUNCTION
The Max function (C, Fig. 3) is activated/deactivated by pressing the corresponding button. If the function is active, the
LED will be lit. The Max function temporarily sets the set-point temperature to °80C by bypassing the previous operating
mode (if the Eco function is active, the self-learning function is temporarily interrupted and deactivates on its own once
the set-point is reached).
The Max function is deactivated even if there is a stall error, if the "OFF" status is engaged or if the +/– buttons are
pressed to change the set-point.
Setting the set-point
By pressing the PLUS or MINUS buttons, the user can choose the set-point temperature (indicated by the temperature
LEDs, with the other LEDs off). Each press of the button increases or decreases the set temperature by 10 degrees. After
5 seconds without any action, the set-point will be confirmed and memorised.
STALL STATUS
There are two possible stall statuses:
- TOUCH CONTROL STALL STATUS
If a touch control error is detected, the status of the touch LED is undetermined and cannot be controlled.
This status is indicated by the flashing of the temperature LEDs (fast if the product is on, slow if it is off).
- OTHER STALL STATUS
If other errors are detected, all the LEDs will start flashing.
To reset a non-volatile error, if possible, it is necessary to press the ON/OFF button (Fig. 3A) to switch the product
on and off. To verify which error occurred, it is necessary to enter the diagnostics state by simultaneously pressing
the ON_OFF and MAX BUTTONS for 3 seconds. In this state, the temperature LED must show the defect according
to Table 1.4. After 25 seconds, the system will return to the stall status. Note: for the Chinese market (set through
NFC), the product is reset by simultaneously pressing the ON/OFF and ECO buttons for 5 seconds.
EN
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