Radiant SF 14 Instruction Manual - page 33
MAINTENANCE INSTRUCTIONS
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6. MAINTENANCE (authorised personnel)
6.1 General warnings
All maintenance operations must be carried out by professionally qualified personnel, authorised by
Radiant Bruciatori Spa.
The frequency of the water heater maintenance must comply with current law and, nevertheless,
should be carried out once a year.
In order to guarantee the long life of the appliance and in accordance with the current gas safety
regulations, only use original spare parts.
Before carrying out any type of maintenance operation, disconnect the appliance from the mains
electricity supply and close the gas valve.
6.2 Water heater inspection
In order to ensure that the water heater operates efficiently and safely, it is recommended that the appliance is
inspected by a suitably competent technician at least once a year.
The following operations should be carried out annually.
■ Check the condition of the gas seals and replace where necessary.
■ Check the condition of the water seals and replace where necessary.
■ Visually inspect the condition of the combustion chamber and flame.
■ When required, check that the combustion is correctly regulated and if necessary proceed in line with section
“Regulating the gas pressure”.
■ Remove and clean any oxidation from the burner.
■ Check that the seal of the room-sealed chamber is undamaged and positioned correctly.
■ Check the primary heat exchanger and clean if necessary.
■ Check the maximum and minimum modulation pressures and the modulation itself.
■ Check the condition and operation of the ignition and gas safety systems. If necessary, remove and clean the
scaling from the ignition and ionisation electrodes, paying particular attention to replace them at the correct
distance from the burner.
■ Check the presence of air intake/permanent ventilation openings correctly sized according to the water heater
installed and in respect with current law.
■ For safety reasons, periodically check the integrity and operation of the flue gas exhaust system;
■ Check that the connection to the mains electricity supply complies with that reported in the water heater’s
instruction manual;
■ Check the electrical connections inside the control panel;
■ Check the D.H.W flow rate and temperature;
■ Check that the condensate flows freely and that there are no exhaust fumes present within the appliance.