Beretta Ciao S 20 C.S.I. User Manual

CIAO S C.S.I. - CIAO S R.S.I.
11
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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 symbolonthecommandpanel
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(g.6a)
Ciao S C.S.I. - Ciao S R.S.I.: Environment Automatic Adjustment
System Function (S.A.R.A.) 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
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-
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 met.
3A SWITCHING OFF
Temporary switching off
In case of absence for short periods of time, set the mode selector
(1-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
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 appears on the digital monitor.
- Circulator anti-blocking function:anoperationcycleisactivated
every24hours.
- 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 appears
on the digital monitor.
Long period switching off
In case of absence for long periods of time, set the mode selector
(1-g.1a)to (OFF).
Then,closethegastappresentonthesystem.Inthiscase,anti-frost
deviceisdeactivated:emptythesystems,incaseofriskoffrost.
4A CONTROLS
Atthebeginningofthe heating season, and occasionally during
use,makesurethehydrometer-thermohydrometerindicatescold
systempressurevaluesbetween0.6and1.5bar:thisavoidssystem
noiselevelsduetothepresenceofair.Incaseofinsufcientwater
circulation, the boiler will switch off. Under no circumstances, water
pressuremustbebelow0.5bar(redeld).
Ifthisconditionischecked,itisnecessarytorestorewaterpressure
in the boiler proceeding as follows:
-setthemodeselector(2-g.1a)to (OFF)
-turnonthellingtap(Lg.13forC.S.I.-externalforR.S.I.)until
the pressure value is between 1 and 1.5 bar.
Carefullyclosethetap.
Replace the mode selector on the initial position.
If pressure drop is frequent, contact the Technical Assistance Service.
5A LIGHT SIGNALS AND FAULTS
Theoperatingstatusoftheboilerisshownonthedigitaldisplay,
belowisalistofthetypesofdisplays.
BOILER STATUS DISPLAY
Stand-by -
OFF status OFF
ACF module lockout alarm
A01
ACF electrical fault alarm
A01
Limit thermostat alarm
A02
Air pressure switch alarm
A03
H2O pressure switch alarm
A04
NTCdomestichotwaterfault(C.S.I.andR.S.I
onlywithexternalstorageheaterwithprobe)
A06
NTC heating fault
A07
Parasiteame
A11
Electric calibration min and max heating
ADJ
Transitoryawaitingignition 88
°C
ashing
Air pressure switch intervention
ashing
H2O pressure switch intervention
ashing
PreheatingFunctionactive(onlyC.S.I.)
Preheatingheatrequest(onlyC.S.I.)
ashing
External probe present
Domestic water heat request 60
°C
Heating heat request 80
°C
Anti-freeze heat request
Flame present
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to (OFF),wait5-6secondsthen
set it to the required position (summermode)or (winter
mode).
If the reset attempts do not reactivate the boiler, contact the Techni-
cal Assistance Centre.
Fault A 04
Inadditiontothefaultcode,thedigitaldisplayshowsthesymbol .
Checkthepressurevalueindicatedbythewatergauge:
if it is less than 0.3 bar, position the function selector to (OFF)
andadjustthellingtap(Lg.13forC.S.I.-externalforR.S.I.)until
the pressure reaches a value between 1 and 1.5 bar.
Then position the mode selector to the desired position (sum-
mer)or (winter).
The boiler will perform one purge cycle lasting approximately 2
minutes.
If pressure drops are frequent, request the intervention of the Tech-
nical Assistance Service.
Fault A 06 (only C.S.I.)
Theboileroperatesnormally butcannotreliably maintainacon-
stant domestic hot water temperature, which remains set at around
50°C. Contact the Technical Assistance Centre.
Fault A 07
Contact the Technical Assistance Centre.

Beretta Ciao S 20 C.S.I. Specifications

General

Brand	Beretta
Model	Ciao S 20 C.S.I.
Category	Boiler
Language	English