Immergas MINI NIKE X 24 3 E, Instructions Manual

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1.4 CONNECTIONS.

Gas connection 

(Appliance category II

2H3+

).

Our boilers are designed to operate with methane 

gas (G20) or 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 

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 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.

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 of the thermal system 

water 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 a draining funnel. Otherwise, the manufacturer 

declines any responsibility in case of flooding if 

the drain valve cuts in.

Attention:

 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.

Electrical connection.

 The "Mini Eolo X 24 3E" 

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 a special “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 a 

multi-pole circuit breaker with class III over-

voltage category.  When replacing the power 

supply cable, contact a qualified technician (e.g. 

the Immergas After-Sales Technical Assistance 

Service). The power cable must be laid as shown 

(Fig. 1-3).

In the event of mains fuses replacement on the 

connection board, use a 3.15A quick-blow fuses. 

For the main power supply to the appliance, 

never use adapters, multiple sockets or extension 

leads.

POWER CABLE