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Instructions for the installer
3.11 - WORKING PRESSURE
The boiler’s maximum allowable working pressure is set at
3 bar; whilst the minimum pressure is pre-charged to 0,5 bar.
WARNING!
The boiler doesn‘t integrate any specific
device against the lack of water, because
this function is performed by the high limit
thermostat (overheating).
Note: On the main PCB it is alwys possible to electrically
connect a minimum water pressure switch against the lack
of water.
3.10 - PRESSURE RELIEF VALVE DRAIN
PIPE
A pressure relief valve must be fitted on the flow
pipe, within 0,5 m from the boiler. It must be
dimensioned for the capacity of the boiler and
must comply to the regulations in force,
WARNING!
Please remember that it is forbidden to
interpose, between the boiler and the
pressure relief valve, any type of cutting-off
device. Moreover it is recommended to use
cutting-off valves which do not exceed the
maximum allowable operating pressure.
WARNING!
In correspondence to the heating pressure relief valve
foresee the installation of a discharge pipe with a funnel
and a siphon which lead to an adequate drainage. The
drainage has to be controllable by sight.
If this precaution is not made, an eventual intervention of
the pressure relief valve could cause injury to persons,
animals or damage to property. The manufacturer shall
not be held liable for any injury and/or damage.