28
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3
INSTRUCTIONS FOR
MAINTENANCE AND
INITIAL CHECK.
3.1 GENERAL WARNINGS.
ATTENTION:
operators who install and service the
appliance must wear the personal pro-
tective equipment (PPE) required by
applicable law.
Note: the list of possible PPE is not
complete as they are indicated by the
employer.
ATTENTION:
before performing any maintenance
operation, make sure:
- you have disconnected the power to
the appliance;
- you have closed the gas cock;
- you have discharged the pressure from
the system and domestic hot water
circuit.
Risk of material damage after using sprays and liquids to search
for leaks.
Leak sprays and liquids clog the reference hole PR (Part. 7 Fig.
20) of the gas valve, damaging it irreparably.
During installation and maintenance, do not use spray or liquids
in the upper area of the gas valve (side referring to the electric
connections).
Supply of spare parts.
The device’s warranty shall be rendered null and void
if unapproved or unsuitable parts are used for main-
tenance or repairs. These will also compromise the
product’s compliance, and the said product may no
longer be valid and fail to meet the current regulations.
With regard to the above, only use Immergas original spare parts
when replacing parts.
If additional documentation needs to be consulted for
extraordinary maintenance, contact the Authorised
After-Sales Service.
3.2 INITIAL CHECK.
To commission the boiler:
- ensure that the type of gas used corresponds to boiler
settings;
- check connection to a 230V-50Hz power mains,
correct L-N polarity and the earthing connection;
- make sure the central heating system is filled with water and
that the boiler manometer indicates a pressure of 1÷1.2 bar;
- switch the boiler on and ensure correct ignition;
- make sure the gas maximum, medium and minimum flow
rate and pressure values correspond to those given in the
handbook at par. 4.1);
- check activation of the safety device in the event of no gas, as
well as the relative activation time;
- check activation of the main switch located upstream from
the boiler;
- check the existing draught during normal functioning of the
appliance, e.g. a draught gauge positioned at the exit of the
appliance combustion products;
- check that there is no backflow of combustion products into
the room, even during functioning of fans;
- ensure activation of all adjustment devices;
- seal the gas flow rate regulation devices (if settings are mod-
ified);
- ensure production of domestic hot water;
- check tightness of water circuits;
- check ventilation and/or aeration of the installation room
where provided.
Even if just one single safety check provides a negative result,
do not commission the system.
Summary of Contents for NIKE ECO 24
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