User warnings
— Check frequently water pressure on the hydrometer and verify that, when the system is cold,
water pressure values are in line with the manufacturer instructions.
— If water pressure is frequently dropping down, call a qualified technician to repair possible
leakages in the system.
— If the boiler is off for a very long period, see the Paragraph “Inactivity of the Boiler” for the
necessary precautions about the electrical supply, the gas supply and the protection against
freezing.
— Every 6 months make the check of the efficiency of the magnesium anode which protects the
water heater from the corrosion, and if necessary, replace it.
Do not touch the heated surfaces of the boiler, as the doors, the flue, the chimney
pipe, etc., also after the boiler operation because, for a certain time, these surfaces
are oveheated. Any contact with them can cause dangerous scalds. It is then forbid-
den to let children or inexperienced people be close to the boiler, during its operation.
— Do not expose the wall hung gas boiler to water vapours directly coming from gas cookers/
hobs.
— Do not wet the gas boiler with water or other liquids sprinklings.
— Do not put any object on the gas boiler.
— The gas boiler utilization is forbidden to children and to inexperienced people.
— If the gas boiler is going to be definitively unused, call a qualified technician to carry out all
required operations, checking in particular disconnection of gas, water and electrical supplies.
— Only on
SUPERMASTER E models (natural draught): the installation of aspirators, fire-
places or similar appliances in the boiler room (and in adjacent rooms in case of indirect venti-
lation), must be made in compliance with all specific safety rules and laws (for example by
augmenting the dimensions of ventilation openings), even in case of modifications or additions.
INSTRUCTIONS MANUAL
Make sure that the present manual is ALWAYS with the boiler, for any consultation of the user and
servicing personnel.
HERMANN CONVENTIONAL GUARANTEE CONDITIONS
Hermann offers to the customer a particular and exclusive CONVENTIONAL GUARANTEE, which
is automatically activated asking the First Ignition to a Hermann Authorized Service Center. The
conditions of the HERMANN CONVENTIONAL GUARANTEE don’t prejudge nor invalidate the
rights indicated by the European Rule 1999/44/CE actuated with Italian Laws by the Decree 02
Februar 2002 N°24 of which the User is the Owner.
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