Immergas Zeus Superior, Руководство пользователя

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31 STZSkW ed 12/07 ZEUS Superior kW
Technical Documentation Technical Documentation
In the case of dispersion of the circuit detection or anomaly in flame control that generates
an ionisation current (without the gas valve being open) with a duration of at least 20
seconds, boiler functioning is blocked.
To re-start the appliance, press button "C"to "Reset" and successively make a domestic
hot water or heating request.
Parasite flame block
In order to prevent overheating of the water-gas heat exchanger due to blocked pump or
little circulation in the primary circuit, when the heating flow NTC probe (B1) detects
an increase in temperature exceeding 5 °C per second (twice consecutively) , the burner is
switched off.
Re-start takes place when the flow temperature falls below 43 °C.
Insufficient circulation
If within 10 seconds from the start of the ignition cycle, the detection electrode (E2) does
not detect the presence of a flame on the burner, boiler functioning is blocked.
The P.C.B. makes 2 attempts at ignition with the duration of 10 sec. with an inteval of
30 sec. after which it blocks.
To re-start the appliance, press button"C" to "Reset" and successively make a domestic
hot water or heating request.
N.B.: It is possible to reset the fault up to 5 consecutive times, after which the function
is prevented for at least one hour and on attempt is gained every hour; or 5 attempts are
gained by pressing the Stand-by key or removing the power supply from the circuit.
Ignition block
A central heating flow probe (B1) malfunction is signalled by the relative fault and prevents
functioning in central heating and domestic hot water phase.
Flow probe
(B1)
To prevent over-heating of the water-gas heat exchanger at the end of each heating, anti-
freeze or "chimney sweep" request, the pump (M1) is kept operating for 150 seconds.
Post-circulation pump
After burner switch-off at the end of any request, the combustion chamber is washed
keeping the fan operating for 30 seconds.
Sealed chamber post-
ventilation
In order to avoid overheating the water-gas exchanger, when the boiler temperature read
by NTC flow probe (B1) exceeds 95 °C, the fan starts until the temperature falls below
90 °C.
Flow overheating
ventilation
A DHW probe (B2) malfunction is signalled by the relative fault and prevents functioning
in the domestic hot water phase, but functioning is allowed in heating mode.
DHW probe
(B2)