Immergas Nike Star 24 4 ErP, Instruction And Warning Book

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INS
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MAINTEN
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The plugs (standard supply) are to be used only in
conjunction with the mounting brackets or fixing
template to fix the appliance to the wall; they only
ensure adequate support if inserted correctly
(according to technical standards) in walls made
of solid or semi-hollow brick or block. In the
case of walls made from hollow brick or block,
partitions with limited static properties, or in any
case walls other than those indicated, a static test
must be carried out to ensure adequate support.
N.B.: the hex head screws supplied in the blister
pack are to be used exclusively to fix the relative
mounting bracket to the wall.
These boilers are used to heat water to below
boiling temperature in atmospheric pressure.
They must be connected to a heating system and
hot water circuit suited to their performance
and capacity.
1.3 GAS CONNECTION.
Our boilers are designed to operate with methane
gas (G20) and LPG. Supply pipes must be the
same as or larger than the 3/4”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 conver-
ting 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, as insufficient levels can reduce generator
output and cause malfunctions.
Ensure correct gas cock connection by following
the mounting instructions illustrated in the
figure. The gas supply pipe must be suitably
dimensioned according to current regulations in
order to guarantee correct gas flow to the boiler
even in conditions of maximum generator output
and to guarantee appliance efficiency (technical
specifications). The coupling system must con-
form to standards.
Combustible gas quality.
The appliance has
been designed to operate with gas free of im-
purities; 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.
1.4 HYDRAULIC CONNECTION.
Important: Before making the boiler connec-
tions, carefully clean the heating system on the
primary heat exchanger (pipes, radiators, etc.)
with special pickling or de-scaling products to
remove any deposits that could compromise
correct boiler operation.
A chemical treatment of the thermal system wa-
ter is required, in compliance with the technical
standards in force, in order to protect the system
and the appliance from deposits (e.g., lime scale),
slurry or other hazardous 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 an appropriate drain. Otherwise, the manu-
facturer 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 esta-
blished 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.
1.5 ELECTRICAL CONNECTION.
The Nike Star 24 4 ErP boiler has an IPX4D pro-
tection rating for the entire appliance. Electrical
safety of the unit is reached when it is correctly
connected to an efficient earthing system as
specified 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
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.
The boilers are supplied complete with an “X”
type power cable without plug. The power sup-
ply cable must be connected to a 230V ±10% /
50Hz mains supply respecting L-N polarity and
earth connection , this network must also
have a multi-pole circuit breaker with class III
over-voltage category. When replacing the power
supply cable, contact a qualified company (e.g.
the After-Sales Technical Assistance Service).
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.
1.6 REMOTE CONTROLS AND
ROOM CHRONOTHERMOSTATS
(OPTIONAL).
The boiler is prepared for the application of room
chronothermostats.
These components are available as separate kits
to the boiler and are supplied on request.
All Immergas chronothermostats are connected
with 2 wires only. Carefully read the user and
assembly instructions contained in the acces-
sory kit.
• On/Off digital chronothermostat (Fig. 1-3). The
chronothermostat allows:
- to set two room temperature values: one for
day (comfort temperature) and one for night
(lower temperature);
- set a weekly programme with four daily
switch on and switch off times;
- selecting the required function mode from
the various possible alternatives:
- manual operation (with adjustable tempe-
rature).
- automatic operation (with set programme).
- forced automatic operation (momentarily
changing the temperature of the automatic
programme)
The chronothermostat is powered by two 1.5V
LR 6 type alkaline batteries;
• Digital Mini Remote Control Device with
climate chronothermostat function (Fig. 1.4).
In addition to the functions described in the
previous point, the Mini CRD panel enables the
user to control all the important information
regarding operation of the appliance and the
heating system with the opportunity of easily
intervening on the previously set parameters
without having to go to the place where the
appliance is installed. The Mini CRD panel
is provided with self-diagnosis to display any
boiler functioning anomalies. The climate chro-
nothermostat incorporated into the remote
panel enables the system delivery temperature
to be adjusted to the actual needs of the room
being heated, in order to obtain the desired
room temperature with extreme precision
and therefore with evident saving in running
costs. The chronothermostat is fed directly by
the boiler by means of the same 2 wires used
for the transmission of data between boiler and
chronothermostat.
Digital Mini Remote Control or On/Off
chronothermostat electrical connections
(Optional) . The operations described below
must be performed after having removed the
voltage from the appliance. Any thermostat or
On/Off environment chronothermostat must
be connected to clamps 40 and 41 eliminating
On/Off digital chrono-thermostat
Digital Mini Remote Control (Mini CRD)