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• verifying the ventilation features of the
premises and evacuation of the combu-
stion products.
• cleaning the fumes duct.
Prior to this, it is necessary to remove the gas
unit and the fumes defl ector. After such ope-
ration, verify the seal of the gas circuit and the
calibration of the entire unit.
NB: The internal body of the water heater
must not, during such operation, suff er
blows that might damage the internal pro-
tective covering.
4. Decalcifi cation: this operation is recom-
mended in areas with very hard waters
and when required (less amount of hot
water supplied by the appliance). We
recommend using a 10-20% solution of
hydrogen chloride and phosphoric acid
and, however, using special products for
decalcifi cation of galvanised steel boilers;
we also recommend complying with the
use instructions attached to the same pro-
ducts.
Proceed as follows:
• disconnect the appliance from the mains
and drain it using the drain cock (fi g. 2);
• fi ll the storage with a water and acid solu-
tion, in compliance with the use instructions
of the same;
• leave the solution to act and, possibly with
a pump, recirculate the water through the
hot water outlet pipe and drain cock;
• drain the storage and carry out a prolonged
passivation washing by making the mains
water circulate.
0000000 00 14312 0000000
Production Year
64
All manuals and user guides at all-guides.com
LABEL
Date production (refered day of the year)
Attention to the water quality!
To assure maximum duration of your applian-
ce, respect certain rules:
LIMESTONE WATER: envision an effi cient
anti-limescale device, with polyphosphate
crystals base.
SOFT WATER: it must have a TH between 12°
and 15° and a PH above.
SAFETY DEVICE
The appliance is equipped with a device act at
avoiding that the water temperature exceeds
a maximum value set in factory.
Such safety acts so as to create an interrup-
tion to the gas fl ow, meaning by completely
switching off the appliance. The re-ignition
must be carried out as described in paragraph
"IGNITION", after having eliminated the cau-
ses that determined the switching off .
AFTER-SALES TECHNICAL ASSISTANCE
In case of fault, irregular functioning or checks
in general, contact the qualifi ed authorised
area AFTER-SALES TECHNICAL ASSISTAN-
CE CENTRE for intervention on this appliance.
Any replacements must be carried out only by
qualifi ed staff , using only original spare parts.
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