Ariston abs vls evo inox pw 80 d [16/28] Hydraulic connection

In the case of walls made of bricks or perforated blocks, partition walls featuring limited static, or masonry

ing system.

The wall-mounting fastening hooks must be designed to support a weight that is three times higher than the

Fastening hooks with a diameter of at least 12 mm (Fig. 3) are recommended.

We recommend installing the appliance (A Fig. 1) as close as possible to the delivery points to minimise

heat loss along the pipes.

Local regulations may provide for restrictions on installation in bathrooms; observe any regulatory minimum

distances.

To facilitate maintenance, make sure there is a clearance of at least 50 cm inside the enclosure for access

to the electrical equipment.

Multi position installation

The product can be installed both vertically and horizontally (Fig. 2). During horizontal installation, rotate the

appliance clockwise so that the water pipes are located to the left (cold water pipe at the bottom).

HYDRAULIC CONNECTION

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.

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

the “T” piece union screw the safety valve supplied (A

CAUTION! For those nations that have taken on European norm EN 1487, the pressure safety device

pro- vided with the product does not comply with that norms. According to the norm, the device must

have a maximum pressure of 0.7 MPa (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.

Some countries may require the use of alternative safety devices, as required by local law; the installer must

check the sui

tability of the safety device he tends to use. Do not install any shut-off device (valve, cock, etc.)

between the safety unit and the heater itself.

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

a water discharge tube on the outlet C

When tightening the pressure safety device, do not over tighten and do not tamper with it. It is normal for wa-

ter 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 appliance must not be supplied

with water of hardness less than 1 2°F, nor with especiall

y hard water (greater than 25 °F); we recommend

installing a water softener, properly calibrated and controlled - do not allow the residual hard- ness to fall

so as to remove any residual.

Electrical connection

Before performing any operations, disconnect the appliance from the electricity mains using the

external switch.

Before installing the appliance it is recommended to thoroughly check the electrical system to verify compliance

with established regulations; the manufacturer is not liable for damage caused by lack of grounding or anoma-

lous power 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 earth-

ing connection.

If the appliance is supplied with a power supply cable, should the latter need replacing, use a cable featuring

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Ariston abs vls evo inox pw 80 d [16/28] Hydraulic connection

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