22
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
From this moment the boiler functions automati-
cally. 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 burner ignites, the relative flame
present symbol is displayed (10) with relative
output scale.
•
Operation with Comando Amico Remoto
V2
(CAR
V2
) (Optional)
. If the CAR
V2
is connected,
the (
) symbol will appear on the display.
The boiler regulation parameters can be set via
the CAR
V2
control panel and the reset button
(3) remains active on the boiler control panel,
along with the switch-off button (1) (“off ”
mode only) and the display where the function-
ing state is shown.
Caution:
if the boiler is switched “off” the
CAR
V2
will display the connection error symbol
“ERR>CM”, the CAR
V2
is however powered
constantly so as not to lose the stored programs.
•
Solar operating mode (
).
This function
cannot be activated on this boiler model.
•
Operation with optional external probe
(
)
.
In the case of a system with optional
external probe, the boiler flow temperature
for room central heating is managed by the
external probe depending on the external
temperature measured (Par. 1.8). The flow
temperature can be modified by selecting the
functioning curve via the selector switch (6)
(or on the CAR
V2
control panel, if connected
to the boiler) selecting a value from “0 to 9”.
With external probe present, the relative
symbol (18) will appear on the display. In the
central heating phase, if the temperature of the
water contained in the system is sufficient to
heat the radiators, the boiler can only function
with the activation of the pump.
•
“Stand-by” mode.
Press button (1) repeatedly
until the symbol (
) appears. From now on
the boiler remains inactive and the antifreeze
function, pump anti-block function and 3-way
and signalling of any anomalies is guaranteed.
N.B.:
in these conditions the boiler is still
powered.
•
“Off” mode.
By holding the button (1) down
for 8 seconds, the display switches-off and the
boiler is off completely. The safety functions are
not guaranteed in this mode.
IMPORTANT NOTE:
in these conditions the
boiler is considered still live even if there are
no functions active.
•
“Automatic vent” mode.
Every time the boiler
is electrically powered, the system automatic
vent function is activated (lasting 8 minutes).
This function is displayed via a countdown
signalled by the indicator (14). During this
period the DHW and CH functions are not
active.
The “automatic vent” can be annulled by press-
ing the “reset” button (4).
•
Display operation.
The display lights up during
the use of the control panel, after 15 seconds
inactivity, the brightness drops until just the
active symbols are displayed. The lighting mode
can be varied via parameter T3 in the P.C.B.
customisation menu.
2.5 TROUBLESHOOTING.
The Victrix EXA 24 X 1 ErP boiler reports any
anomalies using a code shown on the boiler
display (14), listed in the table below:
On the remote control, the error code will be
displayed by means of the same numeric code
represented according to the following example
(e.g. CAR
V2
= Exx).
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 neces-
sary 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.
Press the Reset button (1).
03
Flue safety
thermostat block
During normal operation, if a fault causes excessive flue gas overheating,
the boiler blocks
Press the Reset button (1).
04
Contacts resistance
block
The P.C.B. detects an anomaly on the gas valve supply. Check the connec-
tion. (the anomaly is detected and displayed only in the event of a request). The boiler does not start (1).
05
Flow probe
anomaly
The board detects an anomaly on the flow NTC probe.
The boiler does not start (1).
08
Maximum N° of
reset
Number of allowed resets that have already performed.
Attention:
the anomaly can be reset 5 times
consecutively, after which the function 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 guar-
antee 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.
12
Storage tank probe
anomaly (optional)
If the board detects an anomaly on the boiler probe, the boiler cannot
produce domestic hot water
(when the boiler is connected to an external
storage tank unit)
and signals an anomaly.
The boiler does not satisfy the DHW pro-
duction requests (1).
15
Configuration error
If the board detects an anomaly or incongruity on the electric wiring, the
boiler will not start.
If normal conditions are restored the boiler
restarts without having to be reset. Check
that the boiler is configured correctly (1).
16
Fan anomaly
This occurs if the fan has a mechanical or electrical fault.
Press the Reset button (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).
23
Return probe
anomaly
The board detects an anomaly on the return NTC probe.
The boiler does not start (1).
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Technical After-Sales Service).
