45
INS
TALLER
U
SER
M
AINTEN
AN
CE
TECHNI
CI
AN
TECHNI
CAL
D
AT
A
3
INSTRUCTIONS FOR
MAINTENANCE AND INITIAL
CHECK
3.1 GENERAL RECOMMENDATIONS
Operators who install and service the ap-
pliance must wear the personal protecti-
ve equipment (PPE) required by appli-
cable law.
The list of possible PPE is not complete as
they are indicated by the employer.
Before carrying out any maintenance
work, make sure that:
– 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 cir-
cuit.
Risk of material damage after using sprays and liquids
to search for leaks
Leak sprays and liquids clog the reference hole P. Ref.
(Fig. 39) 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 maintenan-
ce 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. in regard to the
above, only use original Immergas spare parts when re-
placing components.
If additional documentation needs to be consulted for
extraordinary maintenance, contact the Authorised
After-Sales Service.
3.2 INITIAL CHECK
To commission the boiler:
- check the existence of the declaration of system conformity;
- Make sure that the type of gas used corresponds to boiler settin-
gs (the type of gas is displayed on the data nameplate and in the
relevant P01 parameter);
- 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;
- check the CO2 flow rate in the flue:
• maximum
• minimum
- the values comply with the relevant tables (Par. 3.3);
- 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 outside the boiler;
- check that the intake and/or exhaust terminals are not blocked;
- ensure activation of all adjustment devices;
- seal the gas flow regulation devices (if the settings are changed);
- ensure production of domestic hot water;
- check the tightness of the hydraulic circuits;
- check ventilation and/or aeration of the installation room whe-
re provided.
Even if just one single safety check provi-
des a negative result, do not commission
the system.
