Ignition And Operation - Beretta QUADRA II 24 C.S.I. Manuel D'installation Et D'utilisation

ENGLISH
3.6 Filling the heating system (fig. 13)
Once the hydraulic connections have been carried out, fill the heat-
ing system. This operation must be carried out with cold system
following this instructions:
- turn by two or three turns the automatic relief valve cap (I)
- make sure the cold water inlet tap is open
- turn on the filling tap (L) until the pressure indicated by the water
pressure gauge is between 1 and 1.5 bar.
Once filling is complete, close the filling tap.
The boiler has an efficient air separator so no manual intervention is
needed. The burner switches on only if the air relief phase is finished.
3.7 Emptying the heating system (fig. 13)
To empty the system, proceed as follow:
- switch off the boiler
- loose the boiler outlet tap (M)
- empty the lowest points of the system.
3.8 Emptying the domestic hot water (fig. 13)
When there is risk of frost, the domestic hot water system must be
emptied in the following way:
- close the main tap of the water mains
- open all the hot and cold water taps
- empty the lowest points.
WARNING
When carrying out the discharge of the safety valve (N), it must be
connected to a suitable collection system. The manufacturer is not
responsible for possible damages due to safety valve operation.

4 IGNITION AND OPERATION

4.1 Preliminary checks
First ignition is carried out by competent personnel from an
authorised Technical Assistance Service Beretta.
Before starting up the boiler, check:
a) that the supply networks data (electric, water, gas) corresponds
to the label data
b) that piping leaving the boiler is covered by thermal insulation
sheath
c) that flue gas extraction and air suction pipes work correctly
d) that conditions for regular maintenance are guaranteed if the
boiler is placed inside or between furniture
e) the seal of the fuel adduction system
f) that fuel capacity corresponds to values requested by the boiler
g) that the fuel supply system has the correct capacity for the
necessary capacity to the boiler and that it has all the safety
and control devices prescribed by current regulations.
4.2 Appliance ignition
To start-up the boiler it is necessary to carry out the following
operations:
- power the boiler
- open the gas tap present in the system to allow fuel flow
- turn the mode selector (1 - fig. 1a) to the desired position:
Summer mode: turning the selector to the summer symbol
2a) the traditional function of only domestic hot water is activated.
If there is a domestic hot water request, the boiler status indicator
LED lights up with a fixed green light. The digital display shows the
hot water system temperature, the icon to indicate the hot water
supply and the flame icon (fig. 4a).
Winter mode: by turning the mode selector (fig. 2b) within the
area marked, the boiler provides domestic hot water and heating. If
there is a heat request, the boiler switches on and the boiler status
indicator LED lights up with a fixed green light. The digital display
indicates the heating water temperature, the icon to indicate heating
and the flame icon (fig. 3a). 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 display shows the hot water
system temperature, the icon to indicate the hot water supply and
the flame icon (fig. 4a).
Pre-heating (faster hot water):turning the domestic hot water
temperature adjustment knob (2 - fig.1a) to the
activates the pre-heating function. This function keeps the water
in the domestic hot water exchanger hot, to reduce stand-by times
6
when a request is made. When the pre-heating function is enabled,
the yellow LED next to the
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 digital dyspaly indicates the
symbol (fig. 5b). To deactivate the pre-heating function, rotate
the domestic hot water temperature adjustment knob back to the
symbol. The yellow LED will 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 (fig.6b) on
Adjustment of domestic hot water temperature
To adjust domestic water temperature (bathrooms, showers, kitchen, etc.),
turn the knob with symbol
Rotate clockwise to increase 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 stand-by status until, after a heat request, the burner
switches 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 stand-by.
If the red LED indicator near the
lights up, this means the boiler is in temporary stop status (see the
chapter about light signals and faults). The digital monitor indicates
the fault code detected (fig. 6a).
Automatic Adjustment Control System Function (S.A.R.A., fig.
7a)
By setting the heating water temperature selector to the area
marked by AUTO - temperature value from 55 to 65°C - the
S.A.R.A. self-adjusting system is activated, the green LED flashes
(frequency 0.1 sec. on; then 0.1 sec. off; for 0.5 seconds): the boiler
varies the delivery temperature according to the closing signal of
the room thermostat. When the temperature set with the heating
water temperature selector is reached, a 20 minutes count begins.
If during this period the room thermostat still requests heat, the
value of the set temperature automatically increases by 5 °C.
When the new value is reached, other 20 minutes count begins.
If during this period the room thermostat still requests heat, the
value of the set temperature automatically increases by 5 °C.
This new temperature value is the result of the temperature set
manually with the heating water temperature selector and the in-
crease of +10 °C of the S.A.R.A function.
After the second cycle the temperature value should be kept at the
set value +10°C until the request of the room thermostat is satis-
fied.
4.3 Switching off
Temporary switching off
In case of absence for short periods of time, set the mode selector
(fig 6b) to
OFF for 3.5 seconds.
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
(fig.
activated at minimum output levels to bring the water temperature
back to the values for safety (35°C). During the anti-frost cycle,
the symbol
- Circulator anti-blocking function: an operation cycle is activated
every 24 hours.
Long period switching off
In case of absence for long periods of time, set the mode selector
(fig 6b) to
OFF for 3.5 seconds.
Turn the main system switch OFF. Close the gas 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.
4.4 Light signals and faults
The operating status of the boiler is shown on the digital display,
following is a list of the types of displays.
symbol (fig. 5a),
symbol is lit. The monitor indicates
(OFF).
(fig. 8a) within the area marked 1 and 6.
symbol on the control panel
(OFF), the green LED flashes ON for 0.5 seconds,
appears on the digital monitor.
(OFF), the green LED flashes ON for 0.5 seconds,