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Off status (OFF)
OFF
None
Stand-by
-
Signal
ACF alarm lockout module
A01
Definitive lockout
ACF electronics fault alarm
Fumes exhaust - air intake
obstruction alarm
Limit thermostat alarm
A02
Definitive lockout
Tacho fan alarm
A03
Definitive lockout
Water pressure switch alarm
A04
Definitive lockout
NTC storage tank fault
A06
Signal
NTC outlet fault temperature
A07
stop
switch-off
Flue gases probe
Heating delivery
Temporary
then final
Outlet/return line probe
differential alarm
Definitive lockout
NTC heating
return line fault
A08
stop
switch-off
Flue gases probe
HEATING RETURN LINE
Temporary
then final
Outlet/return line probe
differential alarm
Definitive lockout
Cleaning the primary
heat exchanger
A09
Signal
NTC flue gases fault
Flue gases probe over-
temperature
Definitive lockout
Parasite flame
A11
stop
switch-off
Low temperature system
thermostat alarm
A77
stop
switch-off
Temporary, pending ignition
80°C
flashing
stop
switch-off
Water pressure switch
intervention
flashing
stop
switch-off
Calibration service
ADJ
Signal
Calibration installer
Chimney sweep
ACO
Signal
Vent cycle
Signal
External probe presence
Signal
Domestic water heat request
60°C
Signal
Heating heat request
80°C
Signal
Antifreeze heat request
Signal
Flame present
Signal
7RUHVWRUHRSHUDWLRQUHVHWDODUPV
)DXOWV$
Turn the mode selector to
OFF, wait 5-6 seconds, then return
the selector to the required position.
If the reset attempts do not reactivate the boiler, request the
intervention of the Technical Assistance Centre.
)DXOW$
In addition to the fault code, the digital display displays the symbol
.
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector on
OFF and
adjust the filling tap until the pressure reaches a value between 1
and 1.5 bar. Then turn the function selector to the required position.
The boiler will carry out a venting cycle lasting about 2 minutes.
If pressure drops are frequent, request the intervention of the
Technical Assistance Centre.
)DXOW$
The boiler functions normally but does not guarantee a constant
domestic hot water temperature, which remains set at around 50°C.
The intervention of the Technical Assistance Centre is required.
)DXOW$$
Contact the Technical Assistance Centre.
)DXOW$
Turn the mode selector to
OFF, wait 5-6 seconds, then return
the selector to the required position.
If the reset attempts do not reactivate the boiler, request the
intervention of the Technical Assistance Centre.
)DXOW$
The boiler is equipped with an auto-diagnostic system which,
based on the total number of hours in certain operating conditions,
can signal the need to clean the primary exchanger (alarm code 09
and flue gas probe meter >2,500).
Once the cleaning operation has been completed, reset to zero the
total hour meter with special kit supplied as an accessory following
procedure indicated below:
- switch off the power supply
- remove the housing
- turn the instrument panel forward
- remove the cover of the electrical parts by means of the fixing
hooks
- while the boiler is being fed electrically, press the CO button for
at least 4 seconds to verify the successful reset of the meter.
Disconnect and connect again the power supply to the boiler the
meter value is displayed after the signal "- C -".
9
Live electrical parts (230 Vac).
127(
: the meter resetting procedure should be carried out after
each in-depth cleaning of the primary exchanger or if this latter
is replaced. To check the status of the totalled hours, multiply the
value read by 100 (e.g. value read 18 = total hours 1800 - value
read 1= total hours 100).
The boiler continues to operate no9,5
- Insert jumpers JP1 and JP3
-
CN6
CN5
CN12
1
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
CN15
P1
CN13
SW1
P4
Power up the boiler.
The display shows "ADJ" for about 4 sec.
Proceed with the modification of the following parameters:
1. Absolute/domestic
maximum
2. Minimum
3. Maximum
heating
4. Slow
ignition
as described below:
