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INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3.2 INITIAL CHECK
Commissioning the appliance requires you to:
- check the existence of the declaration of system conformity;
- make sure 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 lled with water and that the pressure gauge on a cold boiler indicates a pressure of 1-1.2 bar;
- switch the appliance on and check correct ignition;
- check the proper calibration of the number of fan revolutions;
- check the CO
2
/O
2
in the ue gas at maximum and minimum ow rate:
- 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 the activation of the main switch located upstream of the appliance;
- check that the intake and/or exhaust terminals are not blocked;
- ensure activation of all adjustment devices;
- seal the gas ow regulation devices (if the settings are changed);
- ensure production of domestic hot water (when paired with a storage tank unit);
- 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.
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