CIAO GREEN R.S.I.
3a SWITCHING OFF
Temporary switch-off
In case of absence for short periods of time, set the mode selector (fig. 31)
to
(OFF).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by:
Anti-frost device: when the temperature of the water in the boiler falls
below 5°C, the circulator and, if necessary, the burner are activated at mini-
mum output levels to bring the water temperature back to the values for
safety (35°C). During the anti-frost cycle, the symbol
on the digital monitor.
Circulator anti-blocking function: an operation cycle is activated every
24 hours.
DHW Antifreeze (only when connected to an external storage tank with
probe): the function is activated if the temperature measured by the storage
tank probe drops below 5° C. A heat request is generated in this phase with
the ignition of the burner at minimum power, which is maintained until the
water temperature reaches 55° C. During the anti-frost cycle, the symbol
(fig. 35) appears on the digital monitor.
Switching off for long periods
In case of absence for long periods of time, set the mode selector (fig. 31)
to
(OFF).
Turn the main system switch OFF.
Close the fuel and water taps of the heating and domestic hot water system.
In this case, anti-frost device is deactivated: drain the systems, in case of
risk of frost.
4a LIGHT SIGNALS AND FAULTS
To restore operation (deactivate alarms):
BOILER STATUS
Off status(OFF)
Stand-by
ACF alarm lockout module
ACF electronics fault alarm
Limit thermostat alarm
Tacho fan alarm
Water pressure switch alarm
NTC domestic water fault (only when con-
nected to an external storage tank with
probe)
NTC heating outlet fault
Heating outlet probe overtemperature
Outlet/return line probe differential alarm
NTC heating return line fault
Heating return line probe overtemperature
Outlet/return line probe differential alarm
Cleaning the primary heat exchanger
NTC flue gases fault
Flue gases probe overtemperature
False flame
Low temperature system thermostat alarm
Temporary pending ignition
Water pressure switch intervention
Calibration service
Calibration installer
Chimney sweep
Vent cycle
External probe presence
14
(fig. 35) appears
TYPES OF
DISPLAY
ALARMS
OFF
None
-
Signal
Definitive lockout
A01
Definitive lockout
A02
Definitive lockout
A03
Definitive lockout
A04
A06
Signal
Temporary stop
Temporary then
A07
definitive
Definitive lockout
Temporary stop
Temporary then
A08
definitive
Definitive lockout
Signal
Temporary stop
A09
Definitive lockout
Temporary stop
A11
Temporary stop
A77
80
C
°
Temporary stop
flashing
Temporary stop
flashing
Signal
ADJ
Signal
ACO
Signal
Signal
Domestic water heat request
Heating heat request
Antifreeze heat request
Flame present
Faults A 01-02-03
Position the function selector to
the required position
(summer mode) or
If the reset attempts do not reactivate the boiler, contact the Technical As-
sistance Centre.
Fault A04
In addition to the fault code, the digital display shows the symbol
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to
adjust the filling tap (external to the system) until the pressure reaches a
value between 1 and 1.5 bar.
Then position the mode selector to the desired position
(winter).
The boiler will perform one purge cycle lasting approximately 2 minutes.
If pressure drops are frequent, request the intervention of the Technical
Assistance Service.
Fault A06
Contact the Technical Assistance Centre.
Fault A07
Contact the Technical Assistance Centre.
Fault A08
Contact the Technical Assistance Centre.
Fault A09
Position the function selector to
required position (summer mode) or (winter mode).
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A09
Contact the Technical Assistance Centre.
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
60
C
Signal
°
80
C
Signal
°
Signal
Signal
(OFF), wait 5-6 seconds then set it to
(winter mode).
OFF (fig. 31) and
(summer) or
(OFF), wait 5-6 seconds then set it to the
.