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INSTRUCTIONS FOR MAINTENANCE AND INITIAL CHECK
3.1 GENERAL RECOMMENDATIONS
Operators who install and service the appliance must wear the personal protective equipment
(PPE) required by applicable 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 circuit.
If additional documentation needs to be consulted for extraordinary maintenance, contact the Authorised After-Sales Service.
Supply of spare parts
The device’s warranty shall be rendered null and void if unapproved or unsuitable parts are used for maintenance 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 replacing components.
3.2 INITIAL CHECK
To commission the boiler:
- ensure that the type of gas used corresponds to the boiler settings (the type of gas appears on the display on first electrical power supply,
on the data nameplate or, with the display already on, with the following sequence: MENU - Information - Ok);
- 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 ∆p gas values in domestic hot water and central heating modes;
- check the proper calibration of the number of fan revolutions;
- check the CO2 flow rate in the flue:
• maximum
• intermediate
• 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 upstream of 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 where provided.
Even if just one single safety check provides a negative result, do not commission the system.