Beretta Quadra II 24 C.A.I. Instrucciones De Instalacion Y Uso Y Cuidado página 5

the template. It is advisable to install a fi lter of suitable dimensions
on the gas line if the distribution network had solid particles.
Once the appliance has been installed check that connections are
sealed according to current installation regulations.
3.5 Fumes exhaustion and air suction
Observe applicable legislation regarding fl ue gas exhaustion.
The exhaust system must be made using rigid ducting, the joints be-
tween elements must be hermetically sealed and all components must
be resistant to heat, condensation and mechanical stress and vibration.
Non insulated outlet pipes are potential sources of danger.
The apertures for the combustion air must be realised in compli-
ance with applicable legislation. If condensation forms, the exhaust
duct must be insulated.
Figure 12 shows a top-down view of the boiler with the dimensions
for the fl ue gas exhaust outlet.
Flue gas safety system
The boiler features a system monitoring that fl ue gases are cor-
rectly exhausted which arrests the boiler in the event of a fault:
fl ue gas thermostat, fi g. 11. To restore normal operation, turn the
function selector to (3 fi g.1a), wait a few seconds, then turn the
function selector into the desired position.
If the fault persists, call a qualifi ed technical from the Technical
Support Service. The fl ue gas exhaustion monitoring system must
never be bypassed or rendered inoperable. Use only original re-
placement parts when replacing the whole system or faulty system
components.
3.6 Filling the heating system (fi g. 13)
Once the hydraulic connections have been carried out, fi ll 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 fi lling tap (L fi g. 13) until the pressure indicated by the
water pressure gauge is between 1 and 1.5 bar.
Once fi lling is complete, close the fi lling tap.
The boiler has an effi cient air separator so no manual intervention
is needed. The burner switches on only if the air relief phase is
fi nished.
3.7 Emptying the heating system
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
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 autho-
rised 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 fl ue 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 nec-
essary 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 op-
erations:
- power the boiler
- open the gas tap present in the system to allow fuel fl ow
- turn the mode selector (3 - fi g. 1a) to the desired position:
Summer mode: turning the selector to the symbol summer
2a) the traditional function of only domestic hot water is activated.
If there is a domestic hot water request the digital display shows
the hot water system temperature, the icon to indicate the hot water
supply and the fl ame icon
Winter mode: by turning the mode selector
divided into segments (fi g. 2b), the boiler provides domestic hot
water and heating. If there is a heat request, the boiler switches
on and the digital monitor indicates the heating water temperature,
the icon to indicate heating and the fl ame icon (fi g. 3a). If there is
a domestic hot water request, the boiler switches on and the digital
display shows the hot water system temperature, the icon to indi-
cate the hot water supply and the fl ame icon (fi g. 4a)
Pre-heating (faster hot water): rotate the domestic hot water tem-
perature adjustment knob (4 - fi g. 1a) to the
to activate the pre-heating function. 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 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 indi-
cates the symbol (fi g. 5b).
To deactivate the pre-heating function, rotate the domes-
tic hot water temperature adjustment knob back to the
symbol. Bring the domestic hot water temperature adjustment
knob back to the required position. This function cannot be activat-
ed when the boiler is OFF: function selector (3 fi g.1a) on
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
" " (within the area divided into segments (fi g. 2b)
Adjustment of domestic hot water temperature
To adjust domestic water temperature (bathrooms, showers, kitch-
en, etc.), turn the knob with symbol
divided into segments.
The boiler is standby status until, after a heat request, the burner
switches on and the digital display shows the hot water system
temperature, the icon to indicate the hot water supply and the fl ame
icon.
The boiler will be in function until the adjusted temperature is
reached, afterwards it will be in "standby" again.
Environment Automatic
(S.A.R.A.) fi g. 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 boiler varies the
delivery temperature according to the closing signal of the room
thermostat. When the temperature set with the heating water tem-
perature 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 satisfi ed.
4.3 Switching off
Temporary switching off
In case of absence for short periods of time, set the mode selector
(3 - fi g. 1a) to (OFF).
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
Quadra II 24 C.A.I.
within the area
symbol (fi g. 5a),
(fi g. 2b) within the area
Adjustment System Function
(fi g.
OFF.
5