Immergas EOLO STAR 24 5E, Instruction Manual

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20
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
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AN
Ignition of the boiler . 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 set the boiler on Summer (
) or Winter ( ).
N.B.: the button (2) must be pressed and held
for the time required to switch from the Stand-
by ( ), Summer ( ) or Winter ( ) function.
Attention: after each switch the button must
in any case be released to switch to the next
function.
When in summer position ( ) the domestic
hot water temperature is adjusted with the
buttons (3-4).
When the winter position is selected ( ) the
system water temperature is adjusted with the
buttons (5-6), whilst the domestic hot water
temperature is adjusted using the buttons (3-4),
by pressing (+) to increase and (-) to reduce the
temperature.
From this moment the boiler functions automa-
tically. With no demand for heat (central 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).
2.4 FAULT AND ANOMALY SIGNALS.
In case of an anomaly, the letter "E" appears on
the display alternately with the relevant error
code occurred. The error codes are listed in the
following table.
Error
Code
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-tempe-
rature)
During normal operation, if a fault causes excessive overheating
internally, the boiler goes into overheating block.
Press the Reset button (1).
03
Flue safety thermostat
anomaly
Failure to recognise the flue pressure switch.
The boiler will automatically restart after
30 minutes without having to be reset.
After three interventions in less than two
hours, the boiler has to be manually rear-
med. Restore the normal conditions and
press the button Reset (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).
08 Maximum N° of resets Number of allowed resets already performed.
Attention: the anomaly can be reset
5 times consecutively, after which the fun-
ction in inhibited for at least one hour. One
attempt is gained every hour for a maximum
of 5 attempts. By switching the appliance on
and off the 5 attempts are re-acquired.
10
Insufficient system
pressure
Water pressure inside the central heating circuit that is sufficient to
guarantee the correct operation of the boiler is not detected.
Check on the boiler pressure gauge (1) that
the system pressure is between 1÷1.2 bar
and restore the correct pressure if necessary.
11
Flue pressure switch
anomaly
This occurs in case of a fault in the flue pressure switch or the fan.
If normal conditions are restored the boiler
restarts without having to be reset (1).
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).
24
Push button control
panel anomaly
The board detects an anomaly on the pushbutton panel.
If normal conditions are restored the boiler
restarts without having to be reset (1).
(1) If the shutdown or fault persists, contact an authorised company (e.g. Technical After-Sales Service).