Ariston VELIS 30 Instructions Pour L'installation, L'emploi, L'entretien page 30

Periodical maintenance
The heating element (R Fig. 6) should be descaled every two years to ensure it works properly (the frequency
must be increased, if water is very hard).
If you prefer not to use special liquids for this operation, simply crumble away the lime deposit without dam-
aging the heating element.
The magnesium anodes (N Fig. 6) must be replaced every two years (this does not apply to appliances with
stainless steel boilers); however, the anode should be checked every year if the water is corrosive or chloride
rich. To replace them, remove the heating elements and unscrew them from the brackets.
The bypass pipe (X Fig. 5) is inspected in the event of fault due to its obstruction. To inspect it remove the two
rings (W Fig. 5).
After routine or extraordinary maintenance, recommend filling its tank with water and draining it completely so
as to remove any residual impurities. Use only original spare parts supplied by the manufacturer's authorised
service centres
Safety valve
Regularly check that the overpressure device is not jammed or damaged; if it is, remove any scale or replace it.
If the device has a lever or knob, operate it to:
- Drain the appliance, if necessary
- Check its operation from time to time.
Advice for user
- Avoid positioning any objects and/or appliances that could be damaged by water leaks beneath the water
heater.
- Should you not use any water for an extended period of time, you should:
• disconnect the appliance from the electrical supply by switching the external switch to ''OFF";
• turn off the plumbing circuit taps;
- Hot water at above 50°C flowing out of the taps at the point of use could cause serious scalds or even death
from burns. Children, the disabled and the elderly are more exposed to the risk of burns. It is strictly forbid-
den for the user to perform any routine or extraordinary maintenance.
To clean the external parts use a damp cloth soaked in soap and water.
Adjusting the temperature and activating the functions (Fig. 8)
The product is set to "Manual" by default, with a temperature set to 80 °C and the function "ECO EVO" is ac-
tive. In case of a power failure or if the product is switched off using the ON/OFF " "button (Ref. A), the last
temperature set remains saved.
Slight noise may occur during the heating phase due to the water being heated.
Switch the appliance on by pressing the ON/OFF " " button (Ref. A). Set the desired temperature by selecting
a level between 40°C and 80°C using the " + " and " - " buttons. During the heating phase, the LEDs (Ref. 1-5)
related to the temperature reached by the water remain on; the subsequent ones, until the temperature is
set, flash progressively. If the temperature drops, for example due to water being drawn, the heating is auto
matically reactivated and the LEDs between the last one on (steady) and that related to the set temperature
start to flash progressively again.
ECO EVO FUNCTION
The "ECO EVO" function is a software program that automatically "learns" user consumption levels, re-
ducing heat loss to a minimum and maximising energy savings. The "ECO EVO" software consists of an
initial saving period of a week, when the product begins to operate at the temperature set. At the end
of this "le arning" week, the software adjusts water heating according to the user's real needs which are
automatically identified by the appliance. The product guarantees a minimum reserve of hot water even
during periods in which water is not withdrawn.
The hot water demand learning process, continues even after the first week. The process achieves max-
imum efficiency after four weeks of learning. Activate the function by pressing the corresponding button,
30 / EN
USER INSTRUCTIONS