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Besides, for an opmal boiler funconing, wa-
ter pressure should be more than 1 Bar. A lower pressure could make dicult to restore correctly the
pressure the heang system, and reduce the ow of hot water available from the boiler.
In case of higher pressure it is indispensable to install a PRESSURE REDUCER upstream the
boiler.
If the wa-
ter hardness is more than 25° fr it’s required to install a soener to bring the hardness below that value.
Besides, the presence of solid residuals or impuries in the water (for example in case of new systems)
could compromise the correct funconing of the boiler. For DHW producon systems, the regulaon in
force prescribes a safety lter to protect the systems.
Thanks to its anfreeze system, inner components could never reach a temperature lower than 5°C. This
system is acvated when the boiler is supplied by the electrical and gas lines, provided that the pressure
in the heang system is correct.
In case of boiler installaon in rooms where temperature can drop down to 0°, it is advisable
to ll the heang circuit with an anfreeze liquid specic for heang systems, propylenic glycol
based, following the instrucons of its manufacturer. Pay aenon to the correct product con-
centraon: adding those substances to the heang water in incorrect dose could lead to the
deformaon of the seals and cause unusual noises during operaon.
ITALTHERM S.r.l. will not be held responsible for consequent damages.
This type B boiler, with open chamber and natural draught, is not suitable for outdoor installa-
on, neither in a parally protected place.
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