Ignition And Operation; Preliminary Checks - Beretta CIAO S 20 C.S.I. Manuel D'utilisation

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 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
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 op-
erations:
- power the boiler
- open the gas tap present in the system to allow fuel fl ow
- turn the mode selector (1 - fi g. 1a) to the desired position:
Ciao S C.S.I.:
Summer mode: turning the selector to the symbol summer
(fi g. 2a) the traditional function of only domestic hot water is acti-
vated. 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 within the area mar-
ked + and - (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 indicate the
hot water supply and the fl ame icon (fi g. 4a)
Pre-heating (faster hot water): rotate the domestic hot water
temperature adjustment knob (2 - fi g. 1a) to the
(fig. 5a), 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 follow-
ing a pre-heating request, the monitor indicates the
(fig. 5b). To deactivate the pre-heating function, rotate the
domestic hot water temperature adjustment knob back to the
symbol. Bring the domestic hot water temperature adjust-
ment knob back to the required position. This function cannot be
activated when the boiler is OFF: function selector (1 fi g.1a) on
OFF.
Ciao S R.S.I.:
Summer mode (only with the external water tank connected):
turning the selector to the symbol summer
tional function of only domestic hot water is activated and the boiler
supplies water at the temperature set on the external storage tank.
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 within the area marked
+ and - (fi g. 2b), the boiler provides hot water for heating and - if
connected to an external storage tank - domestic hot water. If there
is a heat request, the boiler switches on and the digital monitor
indicates the heating water temperature, the icon to indicate he-
ating 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 indicate the hot water
supply and the fl ame icon (fi g. 4a).
Adjust the ambient thermostat to the required temperature (~20°C)
Ciao S C.S.I.: Adjustment of domestic hot water temperature
To adjust domestic water temperature (bathrooms, showers, kitchen,
etc.), turn the knob with symbol
+ and -.
The boiler is standby status until, after a heat request, the burner
switches on and the digital display shows the hot water system tem-
perature, 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.
If the red indicator light 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 (fi g. 6a).
Ciao S R.S.I.: Adjustment of the domestic hot water temperature
CASE A heating only - adjustment does not apply
CASE B heating only + external storage tank with thermostat - ad-
justment does not apply.
CASE C heating only + external storage tank with probe - to adjust
the temperature of the domestic hot water in the storage tank, turn the
knob-but with the symbol clockwise to increase water temperature
and anti-clockwise to lower it.
The boiler is standby status until, after a heat request, the burner
switches on and the digital display shows the hot water system tem-
perature, 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.
If the red indicator light 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 (fi g. 6a)
Ciao S C.S.I. - Ciao S R.S.I.: Environment Automatic Adjustment
System Function (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 tempera-
ture according to the closing signal of the ambient thermostat. When
the temperature set with the heating water temperature selector is
symbol
reached, a 20 minutes count begins. If during this period the ambi-
ent 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 ambient 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 manu-
symbol
ally with the heating water temperature selector and the increase 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 ambient thermostat is satisfi ed.
4.3 Switching off
Temporary switching off
In case of absence for short periods of time, set the mode selector
(fi g. 2a) the tradi-
(1 - fi g. 1a) to
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 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
- 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
on the digital monitor.
CIAO S C.S.I. - CIAO S R.S.I.
(fi g. 2b) within the area marked
symbol on the command panel
symbol on the command panel
(OFF).
appears on the digital monitor.
hours.
appears
7