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local regulations. The manufacturer is not liable for damage caused by lack of grounding or anomalous power
supply. Before starting up the appliance, check that the power rating matches that given on the nameplate.
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. If the appliance is supplied with a power supply cable, should the latter need replacing, use a cable
featuring the same characteristics (type H05VV-F 3x1.5 mm
3x1,5 mm
dim. 8.5 mm) must be routed into the hole in the back of the appliance and connected to the thermo-
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stat terminals or terminal block clamps.
Use a two-pole switch conforming with national laws in force (contact gap of at least 3 mm, preferably equipped with
fuses) to disconnect the appliance's power supply.
The appliance must be grounded with a cable (yellow/green and longer than the phase cable) connected to the
terminals marked
.
Before starting up the appliance, check that the power rating matches that given on the nameplate. If the appli-
ance is not supplied with a power supply cable, choose one of the following installation modes:
- connection to mains with a rigid pipe (if the appliance has no cable clamp); use a cable with a minimum 3x1.5
mm
section;
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- with a flexible cable (type H05VV-F 3x1.5mm
clamp.
Testing and ignition of the device
Before powering up the appliance, fill the heater with mains water.
To do so, open the mains cock and the hot water tap until all the air has been vented from the boiler. Check for
leaks from the flanges, tighten down the fittings (not too much!) if necessary.
Turn on the appliance with the switch.
MAINTENANCE REGULATIONS (for qualified personnel)
Before calling your Technical Servicing Centre, check that the fault is not due to lack of water or power failure.
Caution: disconnect the appliance from the mains before conducting any maintenance work.
Setting the operating temperature
For models without knob, temperature adjustment can be done removing the cap and using a screwdriver on the
thermostat adjustment pin, following the drawing instructions.
PLEASE NOTE During the stage of the first temperature adjustment it is necessary to apply light pressure rotat-
ing the pin to remove the seal that blocks the thermostat to the maximum energy efficiency temperature.
Emptying the appliance
The appliance must be emptied if it is to be left unused for a long period and/or in premises subject to frost.
To drain the appliance, proceed as follows:
- close the tap, if installed (D Fig. 2), otherwise the central tap domestic power supply;
- turn on the hot water tap (wash basin or bathtub);
- open the drain valve B (Fig. 2).
Replacing parts
Remove the enclosure to access the electrical equipment.
To act on the thermostat it is necessary to disconnect it from the power cord and remove it from its holder.
Before handling the heating element and anode, empty the appliance.
Undo the 5 bolts (C fig. 3) and remove the flange (F fig. 3). The heating element and anode are attached to the
flange. During reassembly, make sure that the flange gasket, the thermostat and the heating element are put
back in their original positions (Fig. 3).
We recommend replacing the flange gasket (Z Fig. 4) every time it is disassembled.
Use only original parts from authorized service centres authorized by the manufacturer.
Periodical maintenance
The heating element (R fig. 4) should be descaled every two years (the frequency must be increased, if water
is very hard) to ensure it works properly. If you do not wish to use a liquid descaler (in this case please read the
safety data sheets of descaling), you can simply break off the deposit, taking care not to damage the heating
element's cladding. The magnesium anode (N fig. 4) must be replaced every two years, otherwise the decay of
the warranty. In the presence of aggressive or waters rich in chloride it is recommended to check the status of
the anode annually.
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, 8.5 mm in diameter. The power cord (type H05VV-F
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, 8.5 mm in diameter) if the appliance is supplied with a cable
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