Beretta CIAO GREEN 25 R.S.I. [20/156] Switching on and operation
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Beretta CIAO GREEN 25 R.S.I. [20/156] Switching on and operation

Beretta CIAO GREEN 25 R.S.I. [20/156] Switching on and operation
20
CIAO GREEN R.S.I.
4.1 Switching on the appliance
Every time the appliance is powered up, a series of data is shown on the
displayincludingtheue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(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:
-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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 mar-
ked + and -, the boiler provides hot water for heating and, if connected to
anexternalstoragetank-supplieshotwaterforDHW.
If there is a heat request, the boiler switches on and the boiler status indi-
catorLEDlightsupwithaxedgreenlight.Thedigitalmonitorindicates
the heating water temperature, theicontoindicateheatingandthe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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marked+and-.
Depending on the type of system, it is possible to pre-select the suitable
temperature range:
- standard systems 40-80°C
-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 tempera-
ture is automatically chosen by the system which rapidly adjusts ambient
temperaturetothechangesinexternaltemperature.Toincreaseordecre-
ase the temperature with respect to the value automatically 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 (only active when the external storage tank is con-
nected): turning the selector to the summer mode symbol (g.28)acti-
vates the traditional domestic hot water only function, the boiler supplies
water at the temperature set on the external storage tank.
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
4 - SWITCHING ON AND OPERATION
Suction pipe length (m)
Discharge pipe length (m)
display shows the hot water system temperature, the icon to indicate the
hotwatersupplyandtheameicon(g.30).
Adjustment of the domestic hot water temperature
CASE A heating only with storage tank - adjustment does not apply
CASE B heating only + external storage tank with thermostat - adjustment
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 (g.32)clockwisetoincreasewatertemperature
andanti-clockwisetolowerit.
Onthecontrolpanel,thegreenLEDasheswithONfor0.5seconds,OFF
for3.5seconds.
The boiler is standby status until, after a heat request, the burner switches
onandtheindicatorLEDturnsxedgreentoindicate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.33)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. 34
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ashesONfor
0.5seconds,OFFfor3.5seconds.
Reset function
To restore operation, set the function selector to (g.31),wait5-6sec-
onds then set the function selector to the required position, checking that
theredindicatorlightisOFF.
At this point the boiler will automatically start and the red lamp switches
oningreen.
N.B. If the attempt to reset the appliance does not activate operation,
contacttheTechnicalAssistanceService.
4.2 Switching off
Temporary switch-off
Incaseofabsenceforshortperiodsoftime,setthemodeselector(g.
31) 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 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 (g.35)ap-
pearsonthedigitalmonitor.
80
0
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0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
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MAXIMUM STRAIGHT LENGTH Ø 80

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