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3.2
INITIAL CHECK
Commissioning the appliance requires you to:
- check the existence of the declaration of system conformity;
- ensure that the type of gas used corresponds to the appliance settings (the type of gas appears on the display on first electrical power
supply, on the data nameplate or, with the display already on, checking parameter G;
- 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 the cooling appliance pressure gauge reads 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
/O
in the flue gas at the flow rate:
2
2
• 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 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;
- check the production of DHW (if 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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