Beretta CIAO GREEN 25 C.S.I. Manual De Instalacion Y Uso página 20

CIAO GREEN C.S.I.
Ciao Green 25 C.S.I.
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
0 5 10 15 20 25 30 35 40
Suction pipe length (m)
4 - SWITCHING ON AND OPERATION
4.1 Switching on the appliance
Every time the appliance is powered up, a series of data is shown on the
display including the flue gas sensor meter reading (-C- XX) (see para-
graph 4.3 - fault A09); the automatic purge cycle then starts, lasting around
2 minutes. During this phase, the three LEDs light up alternately and the
symbol is shown on the monitor (fig. 25).
To interrupt the automatic purge cycle proceed as follows:
access the electronic board by removing the housing, turning the instru-
ment panel towards you and opening the board casing (fig. 16)
Then:
- press the CO button (fig. 26).
Live electrical parts (230 V AC).
To start up the boiler it is necessary to carry out the following operations:
- power the boiler
- open the gas tap to allow the flow of fuel
- set the room thermostat to the required temperature (~20°C)
- turn the mode selector to the desired position:
Winter mode: by turning the mode selector (fig. 27) within the area mar-
ked + and -, 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 monitor indicates the heating
water temperature, the icon to indicate heating and the flame icon (fig. 29).
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. 30)
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(fig. 27) within the area marked + and -.
Depending on the type of system, it is possible to pre-select the suitable
temperature range:
- standard systems 40-80°C
- floor systems 20-45°C.
For further details, consult the "Boiler configuration" section.
Adjusting heating water temperature with an external probe con-
nected
When an external probe is connected, the value of the delivery tempera-
ture is automatically chosen by the system which rapidly adjusts ambient
temperature to the changes in external temperature.
To increase or decrease the temperature with respect to the value automa-
tically calculated by the electronic board, turn the heating water selector
(Fig. 12.6) clockwise to increase and anticlockwise to decrease.
Adjustment settings range from comfort levels - 5 to + 5 which are indica-
ted on the digital display when the knob is turned.
Summer mode: turning the selector to the summer mode symbol
28) activates the traditional domestic hot water only function.
20
MAXIMUM STRAIGHT LENGTH Ø 80
45 50 55 60 65 70 75 80 85 90
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
95 100 105 110 0 5 10 15
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. 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
(fig.32) to (OFF).
Adjustment of the domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitch-
en, etc.), turn the knob with the
increase the temperature and anticlockwise to reduce
panel, the green LED flashes with ON for 0.5 seconds, OFF for 3.5 sec-
onds.
The boiler is standby 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 standby.
If the red LED indicator near the
lights up, this means the boiler is in temporary shutdown status (see the
chapter on Light signals and faults).
The digital monitor indicates the fault code detected.
Automatic Temperature Control System function (S.A.R.A.) fig. 35
Setting the heating water temperature selector to the area marked "AUTO"
(temperature range 55 to 65°C), activates the automatic temperature con-
trol 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 tem-
perature 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.
(fig.
Ciao Green 29 C.S.I.
20 25 30 35 40 45 50 55 60
Suction pipe length (m)
symbol (fig. 31) activates the pre-heating
symbol. The yellow LED will
symbol (fig. 33) rotate clockwise to
symbol (fig. 34) on the control panel
65 70 75 80 85 90 95
it. On the control