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ENGLISH
QUADRA GREEN 25 R.S.I.
The boiler is standby status until, after a heat request, the burner switch-
es on and the indicator LED turns fixed green to indicate flame presence.
The boiler continues to operate until the temperatures set on the boiler are
reached, or the heat request is met; after which it goes back on standby.
If the red LED indicator near the
symbol (fig. 33) on the control panel
lights up, this means the boiler is in temporary shutdown status (see chap-
ter “Light signals and faults”).
The digital monitor indicates the fault code detected.
Automatic Temperature Control System function (S.A.R.A.) fig. 34
Setting the heating water temperature selector to the area marked “AUTO”,
activates the automatic temperature control system (frequency 0.1 sec. on;
then 0.1 sec. off; for 0.5 seconds): according to the temperature set on the
room thermostat and the time taken to reach it, the boiler varies automati-
cally the heating water temperature reducing the operating time, allowing
greater ease of operation and energy saving. On the control panel, the
green LED flashes ON for 0.5 seconds, OFF for 3.5 seconds.
Reset function
To restore operation, set the function selector to
(“OFF”) (fig. 31), wait
5-6 seconds then set it to the required position, checking that the red indica-
tor light is OFF.
At this point the boiler will automatically start and the red lamp switches on
in green.
NOTE:
If the attempt to reset the appliance does not activate operation,
contact the Technical Assistance Service.
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
(fig. 35) appears
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):
Faults A 01-02-03
Position the function selector to (OFF), wait 5-6 seconds then set it to
the required position
(summer mode) or
(winter mode).
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
OFF (fig. 31) and
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
(summer) or
(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 with fixed red LED lit
Position the function selector to (OFF), wait 5-6 seconds then set it to the
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 with flashing red and green LEDs
Contact the Technical Assistance Centre
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Flashing yellow LED
Combustion analysis in progress.
Summary of Contents for 20084408
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