8
CIAO GREEN C.S.I.
Suction pipe length (m)
Discharge pipe length (m)
80
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
100
105
105
110
110
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
MAXIMUM STRAIGHT LENGTH Ø 80
Ciao Green 25 C.S.I.
Ciao Green 29 C.S.I.
Discharge pipe length (m)
Suction pipe length (m)
PRESSURISED COLLECTIVE CHIMNEY 3CEP
3CEp installations are available only with the dedicated accessory
(optional).
The B23P/B53P con
¿
guration is forbitten in case of installation in
pressurised collective chimney.
Maximum pressure of the pressurised collective chimney must not
exceed the 35 Pascal.
Maintenance in case of pressurised collective chimney must be
performed as indicated in the speci
¿
c chapter “Maintenance in-
structions”.
For 3CEp installations with dedicated accessory, it is necessary
change the setting of minimum fan speed according the accessory
instructions.
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
À
ue gas sensor meter reading (-C- XX) (see paragraph
4.3 - fault A09); the automatic purge cycle then starts, lasting around 2 min-
utes. During this phase, the three LEDs light up alternately and the symbol
is shown on the monitor (
¿
g. 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 (
¿
g. 16)
Then:
- using a small screwdriver included, press the CO button (
¿
g. 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
À
ow 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 (
¿
g. 27) within the area marked
+ 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
¿
xed green light. The digital monitor indicates the heating
water temperature, the icon to indicate heating and the
À
ame icon (
¿
g. 29).
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a
¿
xed green light.
The digital display shows the hot water system temperature, the icon to
indicate the hot water supply and the
À
ame icon (
¿
g. 30)
Adjustment of the heating water temperature
To adjust the heating water temperature, turn the knob with symbol
(
¿
g. 27) within the area and -
.
Depending on the type of system, it is possible to pre-select the suitable
temperature range:
- standard systems 40-80°C
-
À
oor systems 20-45°C.
For further details, consult the “Boiler con
¿
guration” section.
Adjusting heating water temperature with an external probe connected
When an external probe is connected, the value of the delivery temperature
is automatically chosen by the system which rapidly adjusts ambient tem-
perature to the changes in external temperature.
To increase or decrease the temperature with respect to the value automati-
cally 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 indicated
on the digital display when the knob is turned.
Summer mode:
turning the selector to the summer mode symbol
(
¿
g.
28) activates the traditional
domestic hot water only
function.
If there is a domestic hot water request, the boiler switches on and the
boiler status indicator LED lights up with a
¿
xed green light. The digital di-
splay shows the hot water system temperature, the icon to indicate the hot
water supply and the
À
ame icon (
¿
g. 30).
Pre-heating (faster hot water):
turning the domestic hot water tempera-
ture adjustment knob to the
symbol (
¿
g. 31) activates the pre-heating
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
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
(
¿
g.32) to
(OFF).
Adjustment of the domestic hot water temperature
To adjust the domestic hot water temperature (bathrooms, shower, kitchen,
etc.), turn the knob with the
symbol (
¿
g. 33) rotate clockwise to increase
the temperature and anticlockwise to reduce it
.
On the control panel, the
green LED
À
ashes 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
¿
xed green to indicate
À
ame 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
symbol (
¿
g. 34) on the control panel
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.)
¿
g. 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): ac-
cording 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
À
ashes ON for 0.5 seconds,
OFF for 3.5 seconds.
Reset function
To restore operation, set the function selector to (
¿
g. 32), wait 5-6 sec-
onds then set the function selector to the required position, checking that
the red indicator light is OFF.
