6
INSTALLATORUSER
MAINTENANCE TECHNICIAN
1.3 ANTIFREEZE PROTECTION.
Minimum temperature -5°C. e boiler comes
standard with an anti-freeze function that ac-
tivates the pump and burner when the system
water temperature in the boiler falls below 4°C.
e anti-freeze function is only guaranteed if:
- the boiler is correctly connected to gas and
electricity power supply circuits;
- the boiler is powered constantly;
- the boiler is not in stand-by ( );
- the boiler is not in no ignition block (par. 2.5);
- the boiler essential components are not faulty.
In these conditions the boiler is protected against
freezing to an environmental temperature of -5°C.
Minimum temperature -15°C. If the boiler is
installed in a place where the temperature falls
below -5°C and in the event there is no gas, or
the boiler goes into ignition block, the appliance
may freeze.
To prevent the risk of freezing follow the instruc-
tions below:
- Protect the heating circuit from freezing by
introducing a good quality anti-freeze liquid
(specifically for heating systems), carefully
following the manufacturer’s instructions re-
garding the percentage necessary with respect
to the minimum temperature required for
preserving the system.
The materials the boilers are made from are
resistant to ethylene and propylene glycol-based
anti-freeze liquids.
For life and possible disposal, follow the supplier’s
instructions.
- Protect the domestic hot water circuit and
the condensate drain trap against freezing by
using an accessory that is supplied on request
(anti-freeze kit) comprising two electric heat-
ing elements, the relevant cables and a control
thermostat (carefully read and follow the instal-
lation instructions contained in the accessory
kit pack).
Boiler anti-freeze protection is thus ensured only if:
- the boiler is correctly connected to the electricity
power supply circuits and powered;
- the anti-freeze kit components are ecient.
In these conditions the boiler is protected against
freezing to temperature of -15°C.
e warranty does not cover damage due to inter-
ruption of the electrical power supply and failure
to comply with that stated on the previous page.
N.B.: if the boiler is installed in places where the
temperature falls below 0°C the domestic water
and heating connection pipes must be insulated.
1.4 CONNECTION GROUP.
Gas connection (Appliance category II2H3B/P).
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 tting.
Before connecting the gas line, carefully clean
inside all the fuel feed system pipes to remove any
residue that could impair boiler eciency. Also
make sure the gas corresponds to that for which
the boiler is prepared (see boiler data-plate). If
dierent, the appliance must be converted for
operation with the other type of gas (see conver-
ting appliance for other gas types). e dynamic
gas supply (methane or LPG) pressure must also
be checked according to the type used in the
boiler, as insucient levels can reduce generator
output and cause malfunctions.
Ensure correct gas cock connection. e gas
supply pipe must be suitably dimensioned accor-
ding to current regulations in order to guarantee
correct gas ow to the burner even in conditions
of maximum generator output and to guarantee
appliance eciency (technical specications).
e coupling system must conform to standards.
Fuel gas quality. e appliance has been desig-
ned to operate with gas free of impurities; other-
wise it is advisable to t special lters 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. is
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
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.
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.
e boiler safety valves outlet must be connected
to a draining funnel. Otherwise, the manufactur-
er declines any responsibility in case of ooding
if the drain valve cuts in.
Important: to preserve the duration and ecien-
cy of the domestic hot water exchanger it is recom-
mended to install the “antiscale” 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).
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 dia-
meter of at least 13 mm. e 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. Also, comply with national and local
regulations on discharging waste waters.
Electric connection. e “Victrix Zeus 26 1 I”
boiler has an IPX4D protection rating for the
entire appliance. Electrical safety of the appliance
is reached only when it is correctly connected
to an ecient earthing system as specied by
current safety standards.
Important: Immergas S.p.A. declines any
responsibility for damage or physical injury
caused by failure to connect the boiler to an
ecient earth system or failure to comply with
the reference standards.
Also ensure that the electrical installation
corresponds to maximum absorbed power
specications as shown on the boiler data-plate.
e boilers are supplied complete with an “X”
type power cable without plug. e power sup-
ply cable must be connected to a 230V ±10% /
50Hz mains supply respecting L-N polarity and
earth connection . is network must also
have an omnipolar circuit breaker with class III
over-voltage category. When replacing the power
supply cable, contact a qualied technician (e.g.
the Immergas Aer-Sales Technical Assistance
Service). e power cable must be laid as shown.
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.
If during connection the L-N polarities are not
respected, the boiler does not detect ame pre-
sence and goes into ignition block.
Important: also in the case in which the L-N
polarity is not respected, if there is temporary
residual voltage exceeding 30V on the neutral,
the boiler could function all the same (but only
temporarily). Measure the voltage using appro-
priate instruments, without trusting the voltage
tester screwdriver.
