11
Installation
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r the technician
CONNECTION EXEMPLE
Hydraulic connections
ADVICES AND SUGGESTIONS TO AVOID
VIBRATIONS AND NOISES IN THE SYSTEM
— Do not use pipes with reduced diameters;
— Do not use bends with small radius and
reductions of important sections;
— It is recommended an hot washing of the
system in order to purge the pipes and the
radiators from impurities (in particular oils and
fats) that could damage the pump.
PUMP’S SPEED
The pump has a selector which
allows to reduce the speed, so as
to reduce the noise produced by the
too rapid circulation of the liquids in
too small heating systems.
DOMESTIC HOT WATER SUPPLY
The pressure of entrance cold water inlet pressure must be lower than 6 bar. Furthermore, for an
optimal boiler functioning, water pressure should be more than 1 bar. A too low inlet pressure could
impede the correct restore of the heating system pressure, whereas a too high inlet pressure will
cause the opening of the tank safety valve and, for this reason, the water outlet.
In case of stronger pressure it is necessary to install a PRESSURE REDUCER upstream
the boiler.
The cleaning frequency of the coil exchanger depends on the water supply hardness. Besides, the
presence of solid residuals or impurities in the water (for example in case of new systems) could
compromise the correct functioning of the boiler.
However, it is possible to install suitable water treatment device, depending on the water features.