Immergas NIKE ECO 24, Инструкции и рекомендации для установщика, Страница: 14 / 52

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1.11 VENTILATION OF THE ROOMS.
In the room in which the boiler is installed it is necessary that at
least as much air flows as that requested for by normal combustion
of the gas and ventilation of the room. Natural air flow must take
place directly through:
- permanent openings in the walls of the room to be ventilated
that lead towards the outside;
- ventilation pipes, individual or branched type.
The air used for ventilation must be withdrawn directly from out-
side, in an area away from sources of pollution. Natural air flow
is also allowed indirectly by air intake from adjoining rooms. For
further information relative to ventilation of the rooms, follow
the provisions of the laws in force .
Evacuation of foul air.
In the rooms where the gas appliances are installed it may also be
necessary, as well as the intake of combustion agent air, to evacuate
foul air, with consequent intake of a further equal amount of clean
air. This must be realised respecting the provisions of the technical
regulations in force.
1.12 EVACUATION OF COMBUSTION PRODUCTS:
SMOKE DUCTS AND BRANCHED MULTIPLE
FLUES.
The European regulation 813/2013 provides that this boiler can be
installed only to replace similar equipment connected to existing
branched multiple flues.
Connection to branched multiple flues.
Fitting the appliances to a branched multiple flues takes place by
means of flue ducts.
In the event of fittings with pre-existing flues, these must be in safe
and efficient status and perfectly clean because the detachment
of any waste from the walls during functioning, could block the
passage of flue gases, thus causing extremely dangerous situations
for the user.
The flue ducts must be connected to the flue in the same room
in which the appliance is installed or, at most, in the adjoining
room and:
- must comply with the regulations in force;
- must comply with standard EN 1856-2;
- must have a diameter that is not less than that of the device’s
outlet throughout its length (in this case D = 130 mm).
1.13 FLUE GAS CONTROL DEVICE.
Important:
it is prohibited to put the flue exhaust control device
out of order voluntarily. Every piece of this device must be replaced
using original spare parts if they have deteriorated. In the case of
repeated interventions of the flue exhaust control device, check
the flue exhaust pipe and the ventilation of the room in which
the boiler is located.
N.B.: for the boiler to function correctly, the pipe the boiler is
connected to is to have a minimum vacuum equivalent to the fan
assisted of 1 meter of vertical pipe with a diameter of 130 mm.
1.14 SYSTEM FILLING.
Once the boiler is connected, proceed with system filling via the
filling cock (Part. 7 Fig. 15). Filling is performed at low speed to
ensure release of air bubbles in the water via the boiler and central
heating system vents.
The boiler has a built-in automatic vent valve on the pump.
Check if the
cap is loose.
Then open the radiator vent valves.
Close radiator vent valves when only water escapes from them.
Close the filling valve when the boiler pressure gauge indicates
approx. 1.2 bar.
N.B.:
during these operations, enable the automatic vent functions
on the boiler.
1.15 GAS SYSTEM START-UP.
To start up the system, refer to the technical standards in force.
1.16 BOILER START-UP (IGNITION).
To commission the boiler (the operations listed below must only be
performed by qualified personnel and in the presence of staff only):
- check that the internal system is properly sealed according to
the specifications set forth by regulations in force;
- ensure that the type of gas used corresponds to boiler settings;
- check connection to a 230V-50Hz power mains, correct L-N polarity
and earthing connection;
- Check that there are external factors that may cause the formation
of fuel pockets;
- 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. 4.1);
- ensure that the safety device is engaged in the event of gas supply
failure and check activation time;
- check the intervention of the main switch located upstream from
the boiler and in the boiler;
- check that the intake/exhaust terminals (if fitted) are not blocked;
Should even just one of these checks have a negative outcome, the
system must not be commissioned.