Beretta QUADRA GREEN 25 C.S.I. Manual De Instalacion Y Uso página 9

If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a fixed green light. The digital di-
splay shows the hot water system temperature, the icon to indicate the hot
water supply and the flame icon (fig. 30).
Pre-heating (faster hot water): turning the domestic hot water tempera-
ture adjustment knob to the
function. Bring the domestic hot water temperature adjustment knob back
to the required position.
This function keeps the water in the domestic hot water exchanger hot, to
reduce standby times when a request is made.
When the pre-heating function is enabled, the yellow LED next to the
symbol is lit. The monitor indicates the delivery temperature of the heating
water or the domestic hot water, according to the current request. During
burner ignition following a pre-heating request, the monitor indicates the
symbol.
To deactivate the pre-heating function, rotate the domestic hot water tem-
perature adjustment knob back to the
switch off. Bring the domestic hot water temperature adjustment knob back
to the required position.
This function cannot be activated when the boiler is OFF: function selector
to (OFF) (fig.32).
Adjustment of the domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitchen,
etc.), turn the knob with the
the temperature and anticlockwise to reduce it. On the control panel, the
green LED flashes with ON for 0.5 seconds, OFF for 3.5 seconds.
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
lights up, this means the boiler is in temporary shutdown status (see the
section on "Light signals and faults").
The digital monitor indicates the fault code detected.
4.3 Light signals and faults
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
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
symbol (fig. 31) activates the pre-heating
symbol. The yellow LED will
symbol (fig. 33) rotate clockwise to increase
symbol (fig. 34) on the control panel
DISPLAY
OFF
-
A01
A02
A03
A04
A06
A07
A08
A09
A11
A77
Automatic Temperature Control System function (S.A.R.A.) fig. 35
Setting the heating water temperature selector to the area indicated (tem-
perature range 55 to 65°C), 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 automatically 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
seconds then set the function selector to the required position, checking
that the red indicator 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.
4.2 Switching off
Temporary switch-off
In case of absence for short periods of time, set the mode selector to
(OFF) (fig. 32).
In this way (leaving the electricity and fuel supplies enabled), the boiler is
protected by the following systems:
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.
Switching off for long periods
In case of absence for long periods of time, set the mode selector to
(OFF) (fig. 32). 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.
RED LED YELLOW LED
on
flashing 0.5 on/
0.5 off
on
on
flashing 0.5 on/
0.5 off
on
on
flashing 0.5 on/
0.5 off
on
flashing 0.2 on/
0.2 off
on
(OFF) (fig. 32), wait 5-6
(fig. 36) appears
TYPES OF
GREEN LED
ALARMS
flashing 0.5 on/
None
3.5 off
flashing 0.5 on/
Signal
3.5 off
Definitive lockout
Definitive lockout
Definitive lockout
on Definitive lockout
flashing 0.5 on/
Signal
0.5 off
Temporary stop
Temporary then
definitive
Definitive lockout
Temporary stop
Temporary then
definitive
Definitive lockout
Signal
flashing 0.5 on/
0.5 off
Temporary stop
Definitive lockout
Temporary stop
Temporary stop
flashing 0.5 on/
Temporary stop
0.5 off
ENGLISH
9