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4.
TESTING THE BOILER
4.1.
Preliminary checks
Before testing the boiler, it is advisable to check that:
• the installation complies with the current regulations;
• the flue gas discharge pipe and terminal are installed as instructed: when the boiler is running, no combustion gas must leak from any of
the gaskets;
• the power supply to the boiler is 230 V ~ 50 Hz;
• the system is full of water and the pressure reading is 1-1.3 bar;
• any system pipe stopcocks are open;
• the gas supplied to the boiler corresponds to the setting; if necessary, the boiler must be converted to the gas available (see section 3.6:
Adapting to other gases);
• the gas cock is open;
• there are no gas leaks;
• the master switch is on;
• the boiler safety valve is not blocked;
• there are no water leaks.
If the boiler is not installed in accordance with the applicable laws and regulations, inform the system supervisor and do
not test the boiler.
4.2.
Switching on and off
Refer to the User Instructions for details of how to switch the boiler on and off.
5.
MAINTENANCE
Maintenance and repairs must be carried out by a fully qualified technician.
The user is strongly advised to have the boiler serviced and repaired by one of the Manufacturer’s fully qualified and authorised
Service Centres
Correct maintenance of the boiler will allow it to work efficiently, without harming the environment, and in complete safety.
Before carrying out any maintenance work involving the replacement of components or internal cleaning of the boiler,
disconnect the boiler from the mains.
5.1.
Maintenance schedule
Routine maintenance must include a series of checks and cleaning operations.
Checks:
• General integrity of the boiler
• Boiler and gas supply leaks
• Boiler gas supply pressure
• Minimum and maximum gas pressure at the boiler nozzle
• Boiler ignition
• The integrity, state of preservation and seal of the flue gas discharge pipes
• State of the draught diverter device (BTN)
• Flue gas reflux in the room and discharge (BTN)
• Integrity of the safety thermostat on the draught diverter (BTN)
• Air pressure switch operation
• General integrity of the boiler safety devices
• Water leaks and oxidation of the boiler fittings
• Boiler safety valve efficiency
• Expansion vessel pressure
• Water pressure switch efficiency
• Integrity of the magnesium anode of the storage tank, and replacement if necessary.
