Immergas Nike Star 24 4 ErP, Instruction And Warning Book

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11
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Ignition of the boiler
(Fig. 2-1).Before ignition
make sure the heating system is filled with water
and that the manometer (7) indicates a pressure
of 1 ÷ 1.2 bar.
- Open the gas cock upstream from the boiler.
- Press key (2) and select the summer position
or winter ( ) position of the boiler ( ).
When in summer position ( ) the domestic hot
water temperature is regulated by keys (3-4).
When in winter position ( ) the system water
temperature is regulated by keys (5-6) whilst the
regulation of the domestic hot water temperature
is regulated using keys (3-4), pressing (+) to
increase and (-) to reduce.
From this moment the boiler functions auto-
matically. With no demand for heat (heating or
domestic hot water production) the boiler goes
to “standby” function, equivalent to the boiler
being powered without presence of flame. Each
time the boiler ignites, the relative flame present
symbol is displayed (15).
2.5 FAULTS AND ANOMALY SIGNALS.
The boiler signals out anomalies by flashing on
the display and relative error codes, listed on the
table, are displayed.
Code
displayed
(flashing)
Anomaly signalled Cause Boiler status / Solution
01 No ignition block:
In the event of request of room central heating or domestic hot
water production, the boiler does not switch on within the preset
time. Upon appliance commissioning or after extended downtime,
it may be necessary to eliminate the block.
Press the Reset button (1)
02
Safety thermostat block
(over-temperature)
During normal operation, if a fault causes excessive overheating
internally, the boiler goes into overheating block.
After an appropriate cooling press the
Reset button (1)
03
Flue safety thermostat
block
During normal operation, if a fault causes excessive flue gas overhe-
ating, the boiler blocks
After an appropriate cooling press the
Reset button (1)
The boiler will automatically restart after
30 minutes if normal conditions resume
without having to be reset. After three
trippings of the flue safety thermostat in
less than two hours the boiler requires a
manual reset to restart; press the Reset
button (1)
04
Contacts resistance
block
The P.C.B. detects a malfunction of the safety thermostat, of the flue
pressure switch or of the system pressure switch.
Press the Reset button (1)
05 Flow probe anomaly The board detects an anomaly on the flow NTC probe. The boiler does not start (1)
06
Domestic hot water
probe anomaly
The board detects an anomaly on the domestic hot water NTC probe.
In this case the antifreeze function is also inhibited
The boiler does not produce domestic hot
water (1)
10
Insufficient system
pressure
Insufficient water pressure inside the central heating circuit is detected
to guarantee correct boiler operation.
Check on the boiler pressure gauge (1) that
the system pressure is between 1÷1.2 bar
and restore the correct pressure if necessary
20 Parasite flame block
This occurs in the event of a leak on the detection circuit or anomaly
in the flame control unit.
Press the Reset button (1)
27
Insufficient water cir-
culation
This occurs if there is overheating in the boiler due to insufficient water
circulating in the primary circuit; the causes can be:
- system low circulation;
- locked circulating pump
- check that no shutoff devices are closed on
the heating circuit and that the system is
free of air (deaerated);
- free the circulating pump.
(1)
28
Domestic hot water
leakagee
If during the heating phase, a rise in domestic hot water temperature
occurs, an anomaly is signalled and heating temperature is reduced
to limit the formation of limescale in the heat exchanger.
Check that all domestic hot water system
cocks are closed and are not drawing and
check also that there are no leaks in the
system. Once good conditions are restored
in the domestic hot water system, the boiler
returns to normal functioning (1)
31
Communication loss
with Mini CRD
This occurs if an incompatible remote control is connected, or
in case of loss of communication between boiler and Mini CRD.
Disconnect and reconnect the power to
the boiler. If the Remote Control is still
not detected on re-starting the boiler will
switch to local operating mode, i.e. using the
controls on the control panel. In this case
the “Heating” (1) mode cannot be activated.
(1) If the shutdown or fault persists, contact an authorised company (e.g. Technical After-Sales Service).