Ariston ABS VLS (VELIS) EVO PW 50 [17/28] Installing the appliance

Electromechanical water heaters are sold with the thermal sanitisation cycle disabled (default setting).

If, for some reason, any of the above ‘’Conditions in favour of the proliferation of Legionella’’ occurs, it

is strongly recommended to enable this function according to the instructions found in this manual [see

<<Activating the ‘’thermal disinfection cycle’’ (anti-legionella)>>]. However, the thermal disinfection

cycle does not kill all Legionella bacteria in the storage tank. It follows that if the function is disabled, the

Legionella bacteria may reoccur.

Note: when the software performs the thermal sanitisation treatment, it is likely that the power consumption

of the water heaters increases.

Caution: the water temperature in the tank can cause immediate serious burns when the software runs

60335-2-21.

The products are compliant according to:

- TP TC 004/2011 “Technical regulations of the Customs Union on safety of low voltage equipment”

- TP TC 020/2011 “Technical regulations of the Customs Union on electro-magnetic compatibility”.

Table 3 - Product information

Range 30 50 80 100

Weight (kg) 16 21 27 32

CAUTION Observe all general warnings and safety standards listed at the begin-

ning of this text in full; all such instructions are obligatory.

INSTALLING NORMS (for the installer)

- Read the instructions provided on the packaging label and on the appliance data plate.

Installing the appliance

This appliance was designed to be installed only inside buildings in compliance with the applicable norms

in force.

Furthermore, installers are requested to keep to the following advice in the presence of:

- Damp: do not install the appliance in closed (unventilated) and damp rooms.

- Frost: do not install the appliance in areas where the temperature may drop critically and there may be a

risk that ice may form.

- Sunlight: do not expose the appliance to direct sunrays, even in the presence of windows.

- Dust/vapours/gas: do not install the appliance in the presence of particularly dangerous substances such

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