12
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2.5 IGNITION OF THE BOILER.
Before ignition make sure the heating system is
filled with water and that the manometer (12)
indicates a pressure of 1÷1,2 bar.
- Open the gas cock upstream from the boiler.
- Turn the master switch (9) taking it to
the Domestic/Remote Friend Control
V2
(CAR
V2
) (
)or Domestic Hot Water
(
)position.
N.B.:
Once the main selector switch has been
placed (9) on one of these positions, the presence
of voltage is indicated by the switch-on with a
fixed light of one of the LEDS from 4 to 8, which
indicate the temperature of the output water from
the main heat exchanger
.
Important:
flashing of one of the LEDs from 4
to 8 indicates that there is an anomaly present,
refer to the successive paragraph.
Functioning of the boiler in domestic water mode
and in heating mode is indicated respectively by
the switch-on of LED 2 or LED 3 with a fixed light
(in absence of remote controls).
• Operation with Remote Friend Control
V2
(Optional). With selector switch (9) in position
(
) and Remote Control connected to
the boiler selector switches (10) and (11)
excluded. The boiler adjustment parameters
are set from the control panel of the Remote
Friend Control
V2
. Connection to the Remote
Control is indicated by the contemporary fixed
switch-on of LEDs 2 and 3 (
). Also in the
presence of Remote Control the indications of
the temperature and any faults are maintained
on the control panel.
•
Operation without Remote Control. With the
selector switch (9) in position (
) the
heating adjustment selector switch is cut out,
the domestic hot water temperature is regulated
by selector switch (10). With the selector switch
in position (
)the heating adjustment
selector switch (11) is used to regulate the
temperature of radiators, while selector (10)
continues to be used for domestic hot water.
Turn the selector switches in a clockwise
direction to increase the temperature and in
an anti-clockwise direction to decrease it.
From this moment the boiler functions
automatically. 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 (LED corresponding to the ignited boiler
temperature). Each time the boiler lights up, the
relative flame present symbol is displayed by the
green LED 1 ( ).
N.B.:
the boiler may start-up automatically if the
anti-freeze function is activated.
2.6 FAULT AND ANOMALY SIGNALS.
The Avio 24 2 ERP boiler signals ant anomaly by
flashing of one of the LEDs from 4 to 8 or LEDs 1
and 2 coupled to LED 7. On any remote controls,
the error code will be displayed using a numerical
code preceeded or followed by the letter E (e.g.
CAR
V2
= Exx, Mini CRD = xxE).
Flashing LED Error
Code
Anomaly signalled
Cause
Boiler status / Solution
Led 6 ( )
01
No ignition block
In the event of request of room central heating or domes-
tic hot water production, the boiler does not switch on
within the preset time. If this does not occur within 10
seconds, the boiler remains in stand-by for 30 seconds, try
again and if the second attempt fails it goes into “ignition
block” (flashing LED 6).
To eliminate “no ignition block” the
main switch (9) must be temporarily
turned to the Reset position (1).
Warning:
the fault may be reset up
to 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.
On commissioning or after extended in-
activity it may be necessary to eliminate
the “no ignition block”.
Led 7 ( )
02
Safety thermostat
block (over-temper-
ature)
During operation, if a fault causes excessive overheating
internally, in the exhaust, or an anomaly occurs in the flame
control section, an overheating block is triggered in the
boiler (LED 7 flashing).
To eliminate the “overheating block” the
main switch (9) must be temporarily
turned to the Reset position (1).
Led 8 ( )
03
Flue safety thermo-
stat block
The fume evacuation pipe does not function correctly
(code 03).
The boiler goes into stand-by for 30
minutes, after which, if normal work-
ing conditions are restored, it re-starts
without having to be reset. In the case
of 3 consecutive blocks, the boiler itself
blocks and it must be reset in order to
re-start (1).
Led 2 ( )
and 7 ( )
blinking
at the same time
04
Contacts resistance
block
This occurs in the case of faults to the safety thermostat
over-temperature).
The boiler does not start (1).
Led 5 ( )
05
Flow probe
anomaly
The board detects an anomaly on the flow probe.
The boiler does not start (1).
Led 2 ( )
12
Storage tank probe
anomaly
If the board detects a fault on the storage tank probe.
The boiler does not start in domestic
hot water mode however, it remains in
heating mode (1).
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Technical After-Sales Service).
(2) Error codes over 31 are not shown on the CAR
V2
display.
Содержание AVIO 24 2 ERP
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