Immergas MINI NIKE X 24 3 E, Instructions Manual

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1.13 CONFIGURATION TYPE B, 

OPEN CHAMBER AND FORCED 

DRAUGHT FOR INDOORS.

The appliance can be installed inside buildings 

in B mode; in this case, all technical rules, and 

national and local regulations in force, must be 

complied with.

- Type B open chamber boilers must not be 

installed in places where commercial, artisan 

or industrial activities take place, which use 

products that may develop volatile vapours 

or substances (e.g. acid vapours, glues, paints, 

solvents, combustibles, etc.), as well as dusts 

(e.g. dust deriving from the working of 

wood, coal fines, cement, etc.), which may be 

damaging for the components of the appliance 

and jeopardise functioning. 

-  In configuration type B, the boilers must not be 

installed in bedrooms, bathrooms or in bedsits.

-  The installation of appliances in configuration 

B is only recommended outdoors (in a partially 

protected place) or in places that are not lived 

in and which are permanently ventilated.

1.14 FLUE EXHAUST TO FLUE/CHIMNEY.

Flue exhaust does not necessarily have to be 

connected to a branched type traditional flue. 

The flue exhaust can be connected to a special 

LAS type multiple flue. Multiple and combined 

flues must be specially designed according to 

the calculation method and requirements of the 

standards, by professionally qualified technical 

staff. Chimney or flue sections for connection 

of the exhaust pipe must comply with requisites 

of technical standards in force.

1.15 DUCTING OF FLUES OR 

TECHNICAL SLOTS.

Ducting is an operation through which by the 

introduction of one or more relevant pipes, 

a system is realised for the evacuation of the 

combustion products of a gas appliance made up 

from the coupling of an existing or new ducting 

pipe with a chimney, flue or technical slot (also 

in new buildings). Ducting requires the use of 

ducts declared to be suitable for the purpose by 

the manufacturer. Follow the installation and 

user instructions provided by the manufacturer 

and the requirements set forth by standards.

1.16 FLUES, CHIMNEYS AND CHIMNEY 

CAPS.

The flues, chimneys and chimney caps for 

the evacuation of combustion products must 

be in compliance with applicable standards. 

Chimneys and roof-installed exhaust terminals 

must comply with the outlet height and with the 

distance from technical volumes set forth by the 

technical standards in force.

Positioning the wall exhaust terminals.

 The 

exhaust terminals must:
- be installed on external perimeter walls of the 

building;

- be positioned according to the minimum 

distances specified in current technical 

standards.

Combustion products exhaust of natural or 

fan assisted appliances in open-top closed 

environments.

 In spaces closed on all sides 

with open tops (ventilation pits, courtyards etc.), 

direct flue gas exhaust is allowed for natural or 

forced draught gas appliances with a heating 

power range from 4 to 35 kW, provided the 

conditions as per the current technical standards 

are respected.

1.17 SYSTEM FILLING.

Once the boiler is connected, proceed with 

system filling via the filling valve (Fig. 2-2).

Filling is performed at low speed to ensure release 

of air bubbles in the water via the boiler and 

heating system vents.

The boiler has a built-in automatic venting valve 

on the circulator. 

Check if the cap is loose.

Open the radiator vent valves. Close radiator 

vent valves when only water escapes from them.

Close the filling valve when the boiler manometer 

indicates approx. 1.2 bar.

N.B.:

 during these operations turn on the 

circulation pump at intervals, by means of the 

stand-by/summer winter button (2) positioned 

on the control panel. 

Vent the circulation pump 

by loosening the front cap and keeping the motor 

running.

Tighten the cap after the operation.

1.18 GAS SYSTEM START-UP.

To start up the system, refer to the standard in 

force: This divides the systems and therefore the 

start-up operations into three categories: new 

systems, modified systems, re-activated systems. 

In particular, for new gas systems:

- open windows and doors;
- avoid presence of sparks or naked flames;
- bleed all air from pipelines;
-  check that the internal system is properly sealed 

according to specifications.

1.19 BOILER START UP (IGNITION).

For issue of the Declaration of Conformity 

provided for by Italian Law, the following must 

be performed for boiler start-up:

-  check that the internal system is properly sealed 

according to specifications;

-  ensure that the type of gas used corresponds to 

boiler settings;

-  switch the boiler on and ensure correct ignition;
- make sure that the gas flow rate and relevant 

pressure values comply with those given in the 

manual (Par. 3.18 / 3.21);

- ensure that the safety device is engaged in the 

event of gas supply failure and check activation 

time;

- check activation of the main switch located 

upstream from the boiler;

- check that the concentric intake-exhaust 

terminal (if fitted) is not blocked.

The boiler must not be started up even if only 

one of the checks should be negative.

N.B.:

 the preliminary boiler check must be carried 

out by a qualified technician. The standard boiler 

warranty is valid from the date of inspection.

The test certificate and warranty is issued to the 

user.