
13
for the technician
Installation instructions
Gas connection
Remark: If gas cock position is foreseen near the WALL, install first gas cock, then water inlet tap.
Boiler installation must be carried out from a qualified technician,
[exemple: as indicated by the Law
XXXXX]
because an incorrect installation can cause damages to people, animals or things, for
which the manufacturer cannot be held responsible.
Verify what follows:
a) cleaning of all system gas pipes in order to avoid the presence of residual combustion products
that could compromise the correct boiler functioning;
b) gas line and ramp conformity with laws and rules actually in force (exemple: Laws UNI-CIG
7129/01, 7131/99 - DM 12/04/96);
c) internal and external tightness of the gas system and
connections;
d) supply pipe must have a section greater than or equal
to the boiler one;
e) supply gas must correspond to the one for which the
boiler has been regulated; otherwise, call
[a
HERMANN Service Centre] [a qualified technician]
for gas conversion;
f)
an interception valve must be installed upstream the
appliance;
Open the meter valve and purge the air that is inside the system pipes (including all the appliances).
While connecting gas inlet pipe of the boiler to the pipe coming from gas network, it is
MANDATORY to insert a TIGHT GASKET, whose dimensions and material must be
adequate. Connection is NOT suitable for hemp, teflon strip or similar materials.
Using LPG, it is absolutely necessary to install a pressure reducer upstream the boiler.
Electrical connections
GENERAL WARNINGS
The cable for electrical supply must be connected to an electrical line of 230V-50Hz, respecting the
polarities L-N (Live-Neutral) and the earth connection.
PLACE UPSTREAM THE BOILER A BIPOLAR SWITCH in accordance with the rules
actually in force.
For the general electrical supply of the appliance, the use of adaptors, multiple taps and extensions
is not allowed.
It is mandatory the earth connection in accordance
with the CEI rules
actually in force.
Electrical safety of the appliance is only achieved when it is well connected to an
efficient earthing system, executed as indicated by the safety rules actually in force.
CONNECTION EXAMPLE