Ariston ABS VLS EVO POWER 30 Instructions For Installation, Use, Maintenance page 40

Periodical maintenance
The heating element (Fig. 6, R) should be descaled every two years to ensure it works properly (Fig. 6, R)
approximately every two years (the frequency must be increased, if water is very hard).
If you pre- fer 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 fi lling its tank with water and draining it com-
pletely so as to remove any residual impurities. Use only original spare parts supplied by the manufactur-
er'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 fl owing 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.
Temperature adjustment and activation of the functions
The product is set by default to a temperature of 70°C. In case of a power failure, or if the product
is switched off using the "FAST/ " knob (Fig. 8, Ref. A), the last temperature measured will be stored
on the display.
Press the "FAST/ " knob (Fig. 8, Ref. A) to switch the device on or off.
Turn the "FAST/ " knob (Fig. 8, Ref. A) to set the water temperature to the desired level; the display
will show the set temperature value for a few seconds before displaying the measured temperature
once again. During the heating phase, the display will show the measured temperature and the
"HEAT" LED (Fig. 8, Ref. B) will be lit.
FAST FUNCTION
The "FAST" function allows the device to function at the maximum power, thus reducing the time
required to heat the water.
To activate the function, press the "FAST/ " knob for 3 seconds; the "FAST" LED (Fig. 8, Ref. D)
will light up. To deactivate the function, press the "FAST/ " knob for 3 seconds; the "FAST" LED
will turn off.
40 / EN
USER INSTRUCTIONS