Immergas Victrix Zeus 25, Инструкции и рекомендации

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INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.3 YEARLY APPLIANCE CHECK AND
MAINTENANCE.
Th e following checks and maintenance should be
performed at least once a year to ensure operation,
safety and e ffi ciency of the appliance over time.
- Clean the fl 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 com-
bustion chamber. It is also forbidden to use alkaline or acid
detergents.
- Check the integrity of the insulating panels inside the combus-
tion chamber and if damaged replace them.
- Visually check for water leaks or oxidation from/on con-
nections and traces of condensate residues inside the sealed
chamber.
- Check the contents of the condensate drain trap.
- 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 ffi cient.
In the event of obstructions (dirt, sediment, etc.) with conse-
quent leakage of condensate in the combustion chamber, one
must replace the insulating panels.
- Check that the burner and gas manifold seal gaskets are intact
and perfectly e ffi cient, otherwise replace them. In any case the
gaskets must be replaced at least every two years, regardless of
their state of wear.
- Check that the burner is intact, that it has no deformations or
cuts and that it is properly fixed to the combustion chamber
lid; otherwise it must be replaced.
- Visually check that the water safety drain valve is not blocked.
- Check that, after 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
after refilling the system by means of the filling valve) is be-
tween 1 and 1.2 bar.
- Check visually that the safety and control devices have not
been tampered with and/or shorted, in particular:
- Check the condition and integrity of the electrical system and
in particular:
- electrical power cables must be inside the fairleads;
- there must be no traces of blackening or burning.
- Check correct lighting and operation.
- Check the CO
2
by using the chimney sweep func-
tion at the three reference heat outputs, using the
parameters in the table below. Should values out of
the indicated tolerance range be detected, check the
integrity of the ignition / detection electrode and, if
required, change it, also changing the relative gasket. At this
point, activate the “complete calibration” function.
- Check correct operation of control and adjustment devices and
in particular:
- system regulation probes intervention;
- domestic hot water control thermostat intervention.
- Check sealing e ffi ciency of gas circuit and the internal system.
- Check the intervention of the device against no gas ionisation
fl ame control. Intervention time must be less than 10 seconds.
CO
2
at nominal
output
CO
2
at interme-
diate
output
CO
2
at minimum
output
G 20 9.20 % ± 0.5 9.00 % ± 0.5 9.00 % ± 0.5
G 31 10.20 % ± 0.5 10.00 % ± 0.5 10.00 % ± 0.5
In addition to yearly maintenance, one must also check the
energy e ffi ciency of the thermal system, with frequency and
procedures that comply with the indications of the technical
regulations in force.