Safety Device - Ariston Thermo SGA CA 120 Instructions Pour L'installation Et L'entretien

GB
• 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
94
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.
serial number