Immergas Victrix Tera V228 EU - Yearly Appliance Check and Maintenance

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INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3.3 YEARLY APPLIANCE CHECK AND MAINTENANCE
e following checks and maintenance should be performed once a year to ensure operation, safety and eciency of the appli-
ance over time.
- Clean the ue side of the heat exchanger.
- Clean the main burner.
- Check the correct positioning, integrity and cleanliness of the detection and ignition electrode; remove any oxide present.
- If deposits are detected in the combustion chamber they must be removed and the heat exchanger coils must be cleaned using nylon or
broomcorn brushes; it is forbidden to use brushes made of metal or other materials that may damage the combustion chamber. It is
also forbidden to use alkaline or acid detergents.
- Check the integrity of the insulating panels inside the combustion chamber and if damaged replace them.
- Visually check for water leaks or oxidation from/on connections and traces of condensate residues inside the sealed chamber.
- Check the contents of the condensate drain trap.
- Visually check that the siphon is properly lled with condensate and top it up if necessary.
- Check that there are no material residues in the condensate drain siphon clogging the condensate passage; also check that the entire
condensate drainage circuit is clear and ecient.
- In the event of obstructions (dirt, sediment, etc.) with consequent leakage of condensate in the combustion chamber, one must replace
the insulating panels.
- Every time the gas manifold is opened, the condition and integrity of the ceramic bres must be veried and replaced, if necessary. On
the other hand, the gas manifold gasket must be replaced every 2 years and every time the manifold is opened, regardless of the time
elapsed. Aer replacing the external silicone gasket, it is mandatory to check the fume tightness.
- Check that the burner is intact, that it has no deformations or cuts and that it is properly xed to the gas manifold; otherwise it must be
replaced.
- Visually check that the water safety drain valve is not blocked.
- Check that, aer discharging the system pressure and bringing it to zero (read on boiler pressure gauge), the expansion vessel pressure
is at 1.0 bar.
- Check that the system static pressure (with system cold and aer relling the system by means of the lling valve) is between 1 and 1.2
bar.
- Check visually that the safety and control devices have not been tampered with and/or shorted, in particular:
- the power supply wires must be housed in the cable glands;
- there must be no traces of blackening or burning.
- Check correct lighting and operation.
- Check the CO
2
/O
2
by using the chimney sweep function at the reference heat outputs, using the parameters in the table below. Should
values out of the indicated tolerance range be detected, check the calibration again (See par. 3.9).
- Check correct operation of control and adjustment devices and in particular:
• system regulation probes intervention;
• Domestic hot water control thermostat intervention.
- Check sealing eciency of gas circuit and the internal system.
- Check the intervention of the device against no gas ionisation ame control. Intervention time must be less than 10 seconds.