Installing The Appliance; Hydraulic Connection; Electrical Connection - Ariston SLIM 40 Instructions For Installation, Use, Maintenance

GB

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.
In the case of walls made of bricks or perforated blocks, partition walls featuring limited static, or masonry 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.
Local norms could set forth restrictions regarding the installation in a bathroom environment. Therefore keep to the
minimum distances foreseen by the applicable norms in force.
The appliance should be installed as close as possible to the point of use to limit heat dispersion along the piping (A
fig. 1).
Allow for a clearance of at least 50 cm to provide access to the electrical components, thus facilitating the maintenance
activities.

HYDRAULIC CONNECTION

Connect the water heater's inlet and outlet with pipes or fittings that are able to withstand temperature in excees of
80° 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.
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 (B fig. 2). On the other side of the "T" piece
union screw the safety valve supplied (A fig. 2).
WARNING! For those nations that have taken on European norm EN 1487:2000, the pressure safety device
provided with the product does not comply with national norms. According to the norm, the device must have
a maximum pressure of 0.7MPa (7 bar) and have at least: a cut-off valve, a non-return valve, a control mechanism
for the non-return valve, a safety valve and a water pressure shut-off device.
The device relief must be connected to a relief pipe that has a diameter at least identical to the one of the equipment
connection. Use a funnel that creates an air gap of at least 20 mm and allows visual checks so that no personal injury,
property damage or damage to animals will occur in case of safety device enabling. The manufacturer will not be held
responsible for such damage. Connect the inlet of the pressure safety device to the cold water system using a flexible
pipe, using a cut-off valve if necessary (D fig. 2).
In addition, a water discharge tube on the outlet C fig. 2 is necessary if the emptying tap is opened.
When tightening the pressure safety device, do not over tighten and do not tamper with it.
It is normal for water to trickle from the tap during the heating phase; for this reason, it is necessary to connect the
drain, which must always be left exposed to the atmosphere, with a drainage pipe that is installed sloping downwards
in a place with no ice. If the network pressure is closed to the calibrated valve pressure, it will be necessary to apply
a pressure reducer far away from the appliance.
To avoid any possible damage to the mixer units (taps or shower) it is necessary to drain any impurities from the pipes.
The working life of the water heater is affected by the operation of the galvanic anti-corrosion system; therefore it
cannot be used when the water hardness is permanently below 12° F.
However, in the presence of particularly hard waters, there will be a considerable and rapid formation of limescale
inside the appliance, with a consequent loss in efficiency and damage to the electric heating element.

Electrical connection

Before performing any operations, disconnect the appliance from the electricity mains using the external
switch.
For greater safety, have qualified personnel carry out a careful inspection of the electrical system, ensuring it complies
with the applicable norms in force, because the appliance manufacturer will not be held responsible for any damage
caused by the lack of earthing of the system or for faults in the electricity supply.
Check that the system is suitable for the maximum power absorbed by the water heater (please refer to the data plate)
and that the cross-section of the electrical connection cables is suitable and complies with current laws.
The use of multiplugs, extensions or adaptors is strictly prohibited.
It is strictly forbidden to use the piping from the plumbing, heating and gas systems for the appliance earthing connection.
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