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COMMISSIONING AND MAINTENANCE
3.8.3
Checking and replacing the storage
cylinder anode
To check the magnesium anode and its wear status:
− remove the front panel (1);
− close the cold water inlet (CWI) shut-off valve;
− Empty the heater through its drain valve, after having
connected a rubber hose to the hose connector;
− remove the heater flange insulation;
− remove the magnesium anode (2) using a socket wrench;
− check the wear status and replace it if necessary.
2
1
3.9
Extraordinary cleaning
3.9.1
Cleaning the storage cylinder
Ordinary maintenance work must be carried out when needed,
in case the heater performance is not satisfying or when the
domestic water is particularly hard.
Perform the following operations before beginning any clean-
ing:
− remove the front panel (1);
− close the cold water inlet (CWI) shut-off valve;
− partially empty the heater through its drain valve, after
having connected a rubber hose to the hose connector;
− remove the heater flange insulation;
− extract the heater sensor;
− remove the screws (2) fastening the flange (3) and extract
it;
3
2
1
− clean the internal surfaces and remove any residues
through the opening;
− check the magnesium anode wear status (4) (replace it if
necessary);
− check that the seal (5) is intact.
5
4
On completion of cleaning, refit all removed parts in the reverse
order, taking care to ensure the efficiency of the seals.
9
Refit the heater flange with probe holder in the lower side
(as shown in the figure) and position the bulb of the heater
probe all the way down.
N.B.: Tighten the fixing nuts, proceeding diagonally around
the flange to apply pressure uniformly around the seal.
3.10 External cleaning
Clean the boiler's casing panels and control panel with a soft
cloth damped in soapy water.
To remove marks from the boiler casing, use a cloth damped in a
50% mix of water and denatured alcohol or a suitable cleaning
product.
Wipe the boiler dry after cleaning it.
0
Do not use abrasive products, petrol or triethylene.
58
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