Extraheat RAPID 10, Инструкция по установке, использованию и техническому обслуживанию

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4
- make sure the water safety unit discharge union is connected to a drain as provided for in par.3.3.1.
Reconnect the power only after this operation.
5) MAINTENANCE INSTRUCTIONS (
QUALIFIED PERSONNEL ONLY
)
IMPORTANT: repair and/or maintenance operations must be carried only using original spare parts and by
qualified personnel. Before performing any maintenance operation, disconnect the appliance from the power
mains.
5.1. Safety limiting device (manual reset )
Reset, after eliminating the causes of intervention, as follows:
- disconnect the power supply;
- remove the protection cover fixing screws;
- lightly press the thermostat reset button, using an insulated object with round tip, in the position indicated in Fig. 1, until
hearing a click.
5.2. Control/Replacement of anode
Its function is very important for protecting the tank against corrosion caused by stray currents or the aggressiveness of the
water. Anode wear is proportional to the protection work carried out and the quality of the water inside.
Make sure to check its efficiency
at least every two years or in any case according to the quality of the water. Protection
efficiency is linked to its integrity. When checking, also check wear; replace if excessively worn or insufficient to guarantee
protection until the next foreseen control. Spare parts are available from the distributor and/or the manufacturer.
IMPORTANT: Remember that damage caused by excessive anode wear (insufficient tank protection) is not
due to manufacturing defects and is therefore not covered by the warranty.
5.2.1. Rapid water heater versions with external selector (Fig 8, 9, 10).
For control and/or replacement, proceed as follows:
- switch off the power to the appliance;
- empty the water from the appliance by following the instructions given in the relevant section;
- remove the electrical protection cover (Fig. 7 Ref. 9) using a screwdriver and disconnect the electrical wires and indicator
lamp from the respective terminals;
- remove the thermostat;
- remove the counterflange using a suitable spanner for M10 nuts and remove it from the housing;
- check the good condition of the anode and replace if necessary, removing it together with its support with the aid of pliers (the
anode holder is screwed onto a special threaded housing) Fig. 7 Ref. 2;
- tighten the M10 nuts with torque setting of 12 Nxm; carry out in cross tightening order. Make sure to correctly position the
gasket and the screws on which the nuts are tightened;
- carry out the specific instructions for connection and fitting of the cover with external selector (Fig. 8, 9, 10).
- fill the appliance according to the instructions given in the relevant section, then reconnect the power.
5.3. Descaling (periodical).
To ensure good appliance efficiency it is advisable to periodically clean any scale from the heating element. The frequency of
this operation depends on the water hardness; proceed as follows:
5.3.1. Versions with external selector – heating element on flange
- switch off the power to the appliance;
- empty the tank (see section on emptying the appliance);
- remove the electrical protection cover (Fig. 7 Ref. 9) using a screwdriver;
- disconnect the electrical wires and indicator lamp from the respective terminals;
- remove the thermostat;
- remove the heating element fixed to the counterflange by means of an M6 hexagon-head screw;
- remove any scale and clean, taking care not to damage the heating element armour.
- refit, tightening the M10 nuts with torque setting of 12 Nxm; carry out in cross tightening order. Make sure to correctly position
the seal and the screws on which the nuts are tightened.
- carry out the specific instructions for connection and fitting the cover with external selector (Fig. 8, 9 and 10).
- fill the appliance according to the instructions given in the relevant section, then reconnect the power.