Ariston VLS EVO INOX 80 PW O 3700632 - Инструкция по эксплуатации - Страница 53

EN

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 re-

commended 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 the 

thermal disinfection treatment. Children, disabled persons and the aged are particularly at risk of 

burns. Check the water temperature before taking a bath or shower.

TECHNICAL CHARACTERISTICS 

For the technical specifications, refer to the nameplate (the nameplate is located next to the water intake/outlet 

pipes).  

This appliance is conforming with the international electrical safety standards IEC 60335-1 and IEC 

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 beginning 

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

INSTALLING NORMS (for the installer) 

The appliance must be installed and commissioned by a qualified technician in accordance with estab-

lished regulations and local health and safety regulations. 

The appliance heats water to a temperature below boiling point. It must be linked up to a mains water supply ac-

cording to the appliance performance levels and capacity. Before connecting the appliance, it is first necessary to: 

- 

Check whether the characteristics (please refer to the data plate) meet the customer’s requirements. 

- 

Make sure the installation conforms to the IP degree (of protection against the penetration of liquids) of the 

appliance according to the applicable norms in force. 
- 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 as 

acidic vapours, dust or those saturated with gas. 

-

 Electrical discharges

: do not install the appliance directly on electrical supplies that aren’t protected against 

sudden voltage jumps.

Separate hot and cold water

Mixed hot and cold water

No storage

Storage

No storage upline 

of the mixer valves

Storage upline of 

the mixer

valves

No storage upline 

of the mixer valves

No 

circulation 

of hot 

water

Circulation 

of hot 

water

No

circulation

of mixed 

water

Circulation 

of mixed 

water

No 

circulation

of mixed 

water

Circulation 

of mixed 

water

No

circulation 

of mixed 

water

Circulation

of mixed 

water

No 

circulation

of mixed 

water

Circulation

of mixed 

water

Ref. in

Annex C

C.1

C.2

C.3

C.4

C.5

C.6

C.7

C.8

C.9

C.10

Temperature

-

≥ 50 °C 

e

in

storage 

heater

a

≥ 50 °C 

e

thermal

disinfec-

tion

d

thermal

disinfec-

tion

d

in

storage 

heater

a

≥ 50 °C 

e

thermal

disinfec-

tion

d

thermal

disinfection

d

thermal

disinfec-

tion

d

Stagnation

-

≤ 3 l 

b

-

≤ 3 l 

b

-

≤ 3 l 

b

-

≤ 3 l 

b

-

≤ 3 l 

b

Sediment

-

-

remove

c

remove

c

-

-

remove

c

remove

c

-

-

a  Temperature ≥ 55°C all day or at least 1h a day ≥60°C.

b  Volume of water contained in the pipes between the circulation system and the most distant tap.

c  Remove the sediment from the storage heater as required by local conditions, but no less frequently than once a year.

d  Thermal disinfection for 20 minutes at 60°C, for 10 minutes at 65°C or 5 minutes at 70 °C at all delivery points at least once a week.

e  The water temperature in the circulation circuit may not fall below 50°C.

-  Not required

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