Ariston VLS - Инструкция по эксплуатации - Страница 31

31 / EN

INSTALLING NORMS (for the installer)

This product, excluding horizontal models (Table 1), is a device that must be installed vertically in 
order to operate correctly. Once installation is complete, and before any water is added or the power 
supply is connected, use a measuring instrument (i.e. a spirit level) to check that the device has been 
installed perfectly vertical.

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

-   Humidity:

 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:

 ndo 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.

In the case of walls made of bricks or perforated blocks, partition walls featuring limited static, or ma-
sonry different in some way from those stated, you first need to carry out a preliminary static check of 
the supporting system. The wall-mounting fastening hooks must be designed to support a weight that is 
three times higher than the weight of the water heater filled with water.
Fastening hooks with a diameter of at least 12 mm are recommended (

Fig. 3

)

We recommend installing the appliance (

Fig. 1, Rif.A

) as close as possible to the delivery points to 

minimise heat loss along the pipes. Local regulations may provide for restrictions on installation in bath-
rooms; observe any regulatory minimum distances. To facilitate maintenance, make sure there is a clear-
ance of at least 50 cm inside the enclosure for access to the electrical equipment.

Multi-position installation

The product may be installed either vertically or horizontally (

Fig. 2

). To install it horizontally, rotate it 

clockwise so that the water pipes are at the left (cold water pipe at the bottom). Any other installation 
than that shown in (

Fig. 2

) is improper and prohibited.

Hydraulic connection

Connect the water heater’s inlet and outlet with pipes or fittings that are able to withstand temperature 
in excees of 90°C at a pressure exceeding that of the working pressure. Therefore, we advise against 
the use of any materials which cannot resist such high temperatures.
The appliance must not be supplied with water of hardness less than 12°F, nor with especially hard water 
(greater than 25°F); we recommend installing a water softener, properly calibrated and controlled - do 
not allow the residual hardness to fall below 15°F.
Screw a “T” piece union to the water inlet pipe with the blue collar. On one side of the “T” piece union, 
screw a tap for draining the appliance that can only be opened with the use of a tool (

Fig. 2, Rif.B

).

On the other side of the “T” piece union screw the safety valve supplied (

Fig. 2, Rif.A

).