Immergas HERCULES Solar 26 1 A Instruction Booklet And Warning page 126

1.3 CONNECTIONS.
PL
Gas connection (Appliance category II
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.
CZ
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
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the boiler is prepared (see boiler data-plate). If
different, the appliance must be converted for
operation with the other type of gas (see conver-
ting appliance for other gas types). The dynamic
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gas supply (methane or LPG) pressure must also
be checked according to the type used in the
boiler, as insufficient levels can reduce generator
output and cause malfunctions. Ensure correct
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gas cock connection. The gas supply pipe must
be suitably dimensioned according to current
regulations in order to guarantee correct gas flow
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to the burner even in conditions of maximum
generator output and to guarantee appliance
efficiency (technical specifications). The coupling
system must conform to standards.
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.
Boiler hydraulic connection.
Important: 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.
On/Off digital timer thermostat.
124
Fig. 1-2
).
2H3B/P
Relay (Optional)
IMG BUS
In order to avoid scaling in the central heating
system, the provisions given in the regulations
on water treatment in heating systems for civil
use must be respected.
Water connections must be made in a rational
way using the couplings on the boiler template.
The boiler safety valves outlet must be connected
to a draining funnel. Otherwise, the manufactu-
rer declines any responsibility in case of flooding
if the drain valve cuts in.
Important: to preserve the duration and efficiency
of the domestic hot water exchanger it is recom-
mended to install the "polyphosphate dispenser"
kit in the presence of water whose characteristics
can give rise to scale deposits (in particular, and as
an example, the kit is recommended when water
hardness is higher than 25 French degrees).
Solar circuit hydraulic connection.
Important: when realising the solar circuit (pipes
and fittings), only use suitable materials that
resist high temperatures.
The pump unit allows to connect the storage tank
to the solar collector, making the water circulate
according to the request of the control unit.
N.B.: the pipes for connection to the solar col-
lector must be ordered separately.
- Every time the solar system is emptied, the sys-
tem must be rinsed well with running water.
- The circulation unit is not designed for use in
direct contact with swimming pool water.
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 connect-
ing 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. Also, comply with national and local
regulations on discharging waste waters.
Comando Amico Remoto remote control (CAR)
Fig. 1-3
VIRGILIO
DIM
(optional) Super Car (optional)
Electrical connection: The "Hercules Solar 26 1
A" 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.
Important: Immergas S.p.A. declines any re-
sponsibility for damage or physical injury caused
by the failure to connect the boiler to an efficient
earthing system or failure to comply with the
reference standards.
Also ensure that the electrical installation cor-
responds to maximum absorbed power specifica-
tions 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
must also have an omnipolar circuit breaker with
class III over-voltage category. When replacing
the power supply cable, contact a qualified tech-
nician (e.g. the Immergas After-Sales Technical
Assistance Service).
The power cable must be laid as shown (Fig.
1-6).
In the event of mains fuse replacement on the
control card, use a 3.15A quick-blow fuse. For the
main power supply to the appliance, never use
adapters, multiple sockets or extension leads.
Solar panels electric connection. Only use an
appropriately sized cable to make the connec-
tions. Making them follow the same route as the
power supply cable (in the pipe set-up), make the
connections on the control panel on clamps 45
and 46, eliminating the r15 resistance (Fig. 1-2).
Connect the supplied probe on the solar panel
and position it in the relevant seat.
Super Comando Amico Remoto remote control (Super CAR)
Fig. 1-4
. This network
Fig. 1-5