Electrical Connections; Hydraulic Connections - Ariston Wi-Fi Manual

Hybrid electric water heater (WiFi model) – TECHNICAL INFORMATION FOR INSTALLERS
4.2

Electrical connections

Description
Alimentation
BEFORE YOU GET ACCESS TO TERMINALS, ALL SUPPLY CIRCUITS MUST BE DISCONNECTED
The appliance is supplied with a power supply cable (should the latter need to be replaced, use only original spare parts
supplied by the manufacturer).
It is advisable to carry out a check on the electrical system to verify conformity to the regulations in force. Verify that the
electrical system can suitably withstand the water heater's maximum power consumption values (refer to the data plate),
in terms of the size of the cables and their conformity to the regulations in force. It is forbidden to use multiple outlet
sockets, extension cables or adaptors. The earth connection of the appliance is required. It is forbidden to use piping
from the water, heating and gas systems for earthing the appliance.
Prior to operating the machine, make sure that the electricity mains voltage conforms to the value indicated on the
appliance's data plate. The manufacturer of the appliance shall not be held liable for any damage caused by failure to
earth the system or due to anomalies in the electric power supply. To disconnect the appliance from the mains, use a
bipolar switch complying with all applicable IEC-EN regulations in force (minimum distance between contacts 3 mm,
switch preferably equipped with fuses).
The appliance must comply with the European and national standards, and must be protected by a 30 mA RCD.
Fig. 7 The water heater will always be connected to the power supply network to ensure 24 h operation.
The protection against corrosion, given by the impressed current anode, is ensured only when the
product is connected to the mains.
4.3

Hydraulic connections

Before using the product, we recommend filling its tank with water and draining it completely so as to remove the residual
impurities.
Connect the water heater inlet and outlet to pipes or pipe fittings that can withstand the operating pressure and
temperature of the hot water, which may reach 75 °C. It is not advisable to use materials that cannot withstand such
temperatures. The two dielectric couplings (supplied with the product) must be applied to the inlet and outlet
water pipes, prior to perform the connection.
Screw a "T" fitting identified by a blue collar onto the appliance's water inlet pipe. It is mandatory to screw on said fitting
a cock for draining the product with a tool on one side, and a suitable device against overpressure on the other side.
BEWARE! It is mandatory to fit a safety valve onto the appliance's water inlet
pipe.
In countries which acknowledge EN 1487 It is mandatory to fit a safety valve onto
the appliance's water inlet pipe. The device must comply with the EN 1487:2002
standard and must have a maximum pressure of 0.7 Mpa (7 bar). Moreover, it
must at least include the following components: 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 codes for these accessories are:
Hydraulic safety unit 1/2" (for products with 1/2" diameter inlet pipes) cod. 877084;
-
Hydraulic safety unit 3/4" (for products with 3/4" diameter inlet pipes) cod. 877085;
-
Syphon 1" cod. 877086 and adapter
-
Certain countries may require the use of alternative safety devices, in line with local legal requirements; it is the
responsibility of the qualified installer charged with installing the product to assess the correctness and suitability of the
safety device used. It is forbidden to fit any shut-off device (valves, stopcocks etc.) between the safety device
and the water heater itself.
The relief valve on the device must be connected to a relief pipe with a diameter no less than that of the connection to
the appliance (1/2"), by means of a siphon (D fig.8) creating an air gap of at least 20 mm to allow for visual inspection;
this is to prevent any harm to persons and animals or damage to objects should the device activate and for which the
Availability
Cable supplied
WARNING:
PERMANENT ELECTRICAL CONNECTION (24 h/24 h)
Cable Type
3G 1.5 mm 2 H05VV-F
47
Max current
16 A