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INSTRUCTIONS FOR THE USER
It is essential to drain the heater if it will
not be used and is in an area subject to
freezing temperatures.
To drain the heater, you must:
a) turn off the burner and close the gas
supply valve;
b) close the upstream water supply valve;
c) remove the cold water supply pipe
and remove the safety valve;
d) connect a hose, of adequate length to
reach the drain, to the water inlet fi ttin
(blue ring) on the heater;
e) open the hot water supply valve down-
stream of the water heater.
Warning!
When draining the heater, the water
leaving the heater can be very hot.
Clean using a cloth dampened with soapy
water. Do not use aggressive detergents,
insecticides or toxic products.
If the appliance is used in full compliance
with current legislation, it will operate in a
safe, environmentally-friendly and cost-effi
cient manner.
NOTE: during this cleaning operation the
inside water tank must not suff er any
blows that could damage the internal
protective lining.
RECOMMENDATIONS
FOR PREVENTION OF LEGIONELLA
GROWTH
Legionella are small rod shaped bacteria
which are a natural constituent of all fresh
waters. Legionaries' disease is a serious
pneumonia infection caused by inhaling
the bacteria Legionella pneumophilia or
other Legionella species.
This bacterium is frequently found in do-
mestic, hotel and other water systems and
in water used for air conditioning or air cool-
ing system. Hence the main intervention
against the condition is prevention, through
control of the organism in water systems.
The European standard CEN/TR 16355
gives recommendations for good practice
concerning the prevention of Legionel-
la growth in drinking water installations
but existing national regulations remain in
force.
This storage water heater is sold with a
thermostat set at a temperature higher than
60°C; it means it is enabled to carry out a
"thermal disinfection cycle" to restrict the
Legionella growth inside the tank.
To prevent it from stagnating for long peri-
ods, water must be used or run abundantly
at least once a week;
WARNING!
Water heated to more than 50°C can
cause serious burns. Always check the
temperature of the water before using it.
GB
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