7
CAVO ALIMENTAZIONE
1-3
INS
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MAINTEN
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1.4 GAS CONNECTION (APPLIANCE
CATEGORY II
2H3P
).
Our boilers are designed to operate with methane
gas (G20) and LPG. Supply pipes must be the
same as or larger than the 1/2”G boiler fitting.
Before connecting the gas line, carefully clean
inside all the fuel feed system pipes to remove any
residue that could impair boiler efficiency. Also
make sure the gas corresponds to that for which
the boiler is prepared (see boiler data-plate).
If different, the appliance must be converted
for operation with the other type of gas (see
converting appliance for other gas types). The
dynamic gas supply (methane or LPG) pressure
must also be checked according to the type used
in the boiler, which must be in compliance, as
insufficient levels can reduce generator output
and cause malfunctions.
Ensure correct gas cock connection. The gas
supply pipe must be suitably dimensioned
according to current regulations in order to
guarantee correct gas flow to the burner even
in conditions of maximum generator output
and to guarantee appliance efficiency (technical
specifications). The coupling system must
conform to technical standards in force.
Fuel gas quality.
The appliance has been
designed to operate with gas free of impurities;
otherwise it is advisable to fit special filters
upstream from the appliance to restore the
purity of the gas.
Storage tanks (in case of supply from LPG
depot).
- New LPG storage tanks may contain residual
inert gases (nitrogen) that degrade the mixture
delivered to the appliance casing functioning
anomalies.
- Due to the composition of the LPG mixture,
layering of the mixture components may occur
during the period of storage in the tanks. This
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
1.5 HYDRAULIC CONNECTION.
Attention:
In order not to void the warranty
before making the boiler connections, carefully
clean the heating system (pipes, radiators, etc.)
with special pickling or de-scaling products to
remove any deposits that could compromise
correct boiler operation.
A chemical treatment for the thermal system
water is prescribed according to the current
technical regulations, until the system and the
lime scale apparatus is preserved (for example,
limescale deposits), from the slurry formation
and other noxious deposits.
Water connections must be made in a rational
way using the couplings on the boiler template.
The boiler safety valve outlet must be connected
to a draining funnel. Otherwise, the manufacturer
declines any responsibility in case of flooding if
the drain valve cuts in.
Attention:
Immergas declines all liability in
the event of damage caused by the inclusion of
automatic filling that is not of its own brand.
In order to meet the system requirements
established by the technical regulation in force
in relation to the pollution of drinking water,
we recommend installing the IMMERGAS
anti-backflow kit to be used upstream of the
cold water inlet connection of the boiler. It is also
recommended that the heat transfer fluid (e.g.
water + glycol) entered in the primary circuit
of the boiler (heating circuit), complies with the
local regulations in force.
Important:
to preserve the duration of appliance
efficiency features, in the presence of water whose
features can lead to the deposit of lime scale,
installation of the “polyphosphate dispenser” kit
is recommended.
Condensate drain.
To drain the condensate
produced by the appliance, it is necessary
to connect to the drainage system by means
of acid condensate resistant pipes having an
internal diameter of at least 13 mm. The system
connecting the appliance to the drainage system
must be carried out in such a way as to prevent
freezing of the liquid contained in it. Before
appliance start-up, ensure that the condensate
can be correctly removed; after first ignition,
check that the drain trap is filled with condensate
(parag. 1.21). Also, comply with national and
local regulations on discharging waste waters.
1.6 ELECTRICAL CONNECTION.
The “Victrix Superior 32 X 2 ErP” boiler has an
IPX5D protection rating for the entire appliance.
Electrical safety of the appliance is reached only
when it is correctly connected to an efficient
earthing system as specified by current safety
standards.
Attention:
Immergas S.p.A. declines any
responsibility for damage or physical injury
caused by failure to connect the boiler to an
efficient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation
corresponds to maximum absorbed power
specifications as shown on the boiler data-plate.
Boilers are supplied complete with an “X” type
power cable without plug. The power supply
cable must be connected to a 230V ±10% / 50Hz
mains supply respecting L-N polarity and earth
connection
. This network must also have
an omnipolar circuit breaker with class III over-
voltage category.
To protect against possible voltage dispersions,
it is necessary to envision a differential safety
device type A.
When replacing the power supply cable, contact
a qualified technician (e.g. the After-Sales
Technical Assistance Service). The power cable
must be laid as shown (Fig. 1-3).
In the event of mains fuse replacement on the
P.C.B., use a 3.15A quick-blow fuse. For the main
power supply to the appliance, never use adapt-
ers, multiple sockets or extension leads.
Installation with system operating at direct
low temperature.
The boiler can directly feed a
low temperature system by acting on parameter
“P66” (Par. 3.8) and setting the flow temperature
adjustment range “P66/A” and “P66/B”. In
this case it is good practice to insert a safety
device in series with the boiler, consisting of a
thermostat having a limit temperature of 60°C.
The thermostat must be positioned on the system
delivery pipe at a distance of at least 2 metres
from the boiler.
POWER SUPPLY CABLE
