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Ariston Blu Eco Evo Manual

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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 especially 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 below 15°F. Before using the appliance, we recommend lling its tank with water and draining
it completely 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 esta-
blished regulations; the manufacturer is not liable for damage caused by lack of grounding or anomalous 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 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
2
, 8.5 mm in diameter. The power cord (HO5 V V-F 3x1 mm
2
dia. 8.5 mm) must be
routed into the hole in the back of the appliance and connected to the thermostat terminals (M g. 3-4-5-6).
Use a two-pole switch conforming with CEI-EN (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
(G Fig. 3-4-5-6).
Before starting up the appliance, check that the power rating matches that given on the nameplate. If the appliance 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
2
section;
- with a exible cable (type H05VV-F 3x1.5mm
2
, 8.5 mm in diameter) if the appliance is supplied with a cable clamp.
Startup and commissioning
Before powering up the appliance, ll 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 anges, tighten down the ttings (not too much!) if necessary.
Power the appliance by actuating the switch.
MAINTENANCE REGULATIONS (for competent person)
CAUTION Observe all general warnings and safety standards listed at the begin-
ning of this text in full; all such instructions are obligatory.
All maintenance operations and service visits should be performed by a competent person (who have the skills
required by the applicable norms in force).
Before calling your Technical Servicing Centre, check that the fault is not due to lack of water or power failure.
Emptying the appliance
The appliance must be emptied if it is to be left unused in premises subject to frost.
When necessary, empty the appliance as follows:
- disconnect the appliance from the electricity mains;
- turn off the domestic mains tap;
- turn on the hot water tap (wash basin or bathtub);
- open the drain valve B (g. 2).
Replacing parts
The electrical parts may be accessed by removing the cover.
• For models featuring a user interface of the type represented in gures 3 and 5:
To work on the electronic thermostat (Ref. T), disconnect the power supply cable (Ref. C) and the control panel wire (Ref.
Y). Next, remove it from its slot, taking care not to bend the sensor support rod (Ref. K) too much.
To work on the control panel (ref. W), disconnect the wire (Ref. Y) and loosen the screws.
•Formodelsfeaturingauserinterfaceofthetyperepresentedingures4and6:
To work on the sensor support rod (Ref. K), disconnect the wire (Ref. F) from the P.C.B. and remove it from its slot, taking
care not to bend it too much.
To work on the control panel (ref. W), disconnect the wire (Ref. Y) and loosen the screws.
To work on the power board (Ref. Z), disconnect the cables and wires (Ref. C, Y, F and P) and loosen the screws.
During reassembly, make sure that all components are put back in their original positions.
In order to work on the heating element and the anode, the appliance must rst be emptied.
… 22 …


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