Beretta CIAO GREEN 25 R.S.I. [22/156] Boiler configuration
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Beretta CIAO GREEN 25 R.S.I. [22/156] Boiler configuration

Beretta CIAO GREEN 25 R.S.I. [22/156] Boiler configuration
22
CIAO GREEN R.S.I.
WhenbuttonP1onthedisplay(g.36a)ishelddownforatleast10sec,
theprogrammingprocedureisactivated.Thethreeparameters,withtheir
respectivevalues,areshowninrotationonthedisplay(g.36b).Toedit
aparametervalue,simplypushtheP1buttonagainwhentherequired
parameter is displayed, and then hold it down until the value switches from
0to1orvice-versa(approx.2sec).
The programming procedure is closed automatically after 5 minutes, or if
there is an electrical power failure
4.5 Boiler conguration
Thereisaseriesofjumpers(JPX)availableontheelectronicboardwhich
enabletheboilertobecongured.
To access the board, proceed as follows:
- turn off the main switch on the system
- loosenthexingscrewsonthehousing,movethebaseofthehousing
forwards and then upwards to unhook it from the chassis
- undothexingscrews(E)fromtheinstrumentpanel(g.14)
- loosen the screws (F -g.16)toremovethecoveroftheterminalboard
(230V)
JUMPER JP7 - g. 37:
preselectionofthemostsuitableheatingtemperatureadjustmenteldac-
cordingtotheinstallationtype.
Jumper not inserted - standard installation
Standard installation 40-80°C
Jumper inserted - oor installation
Floorinstallation20-45°C.
Inthemanufacturingphase,theboilerisconguredforstandardinstalla-
tions.
JP1
Calibration (Range Rated)
JP2 Reset heating timer
JP3 Calibration (see paragraph on “Adjustments”)
JP4 Do not use
JP5
Heating only function with a predisposition for external storage tank
withthermostat(JP8inserted)orprobe(JP8notinserted)
JP6 Enable night-time compensation function and continuous pump (only
with external sensor connected)
JP7 Enable management of low temperature/standard installations (see
above)
JP8
Management of an external storage tank with thermostat enabled
(jumper inserted)/ management of an external storage tank with
probe(jumpersnotinserted)g.37.
TheboilerforeseesjumpersJP5andJP8insertedasstandard(heating
onlyversionarrangedforstoragetankwiththermostat);iftheuseofan
exteriorstoragetankwithprobeisrequired,jumperJP8mustberemoved.
4.6 Setting the thermoregulation (graphs 1-2-3)
The thermoregulation only operates with the external sensor connected;
once installed, connect the external sensor (accessory available on request)
tothespecialterminalsprovidedontheboilerterminalboard(g.5).
ThisenablestheTHERMOREGULATIONfunction.
Selecting the compensation curve
The compensation curve for heating maintains a theoretical temperature
of 20°C indoors, when the external temperature is between +20°C and
-20°C.Thechoiceofthecurvedependsontheminimumexternaltemper-
ature envisaged (and therefore on the geographical location), and on the
deliverytemperatureenvisaged(andthereforeonthetypeofsystem).Itis
carefully calculated by the installer on the basis of the following formula:
Tshift = 30°C standard installations
25°Coorinstallations
If the calculation produces an intermediate value between two curves, you
areadvisedtochoosethecompensationcurvenearestthevalueobtained.
Example: if the value obtained from the calculation is 1,3 this is between
curve1andcurve1,5.Choosethenearestcurve,i.e.1,5.
SelecttheKTusingtrimmerP3 on the board (see multiwire wiring dia-
gram).
To access P3:
- remove the housing,
- loosenthexingscrewontheinstrumentpanel
- turn the instrument panel towards you
- loosenthexingscrewsontheterminalboardcover
- unhook the board casing
Live electrical parts (230 V AC).
TheKTvalueswhichcanbesetareasfollows:
standard installation: 1,0-1,5-2,0-2,5-3,0
oorinstallation0,2-0,4-0,6-0,8
and these are displayed for approximately 3 seconds after rotation of the
trimmerP3.
TYPE OF HEAT REQUEST
Boiler connected to room thermostat (JUMPER 6 not inserted)
The heat request is made by the closure of the room thermostat contact,
whiletheopeningofthecontactproducesaswitch-off.Thedeliverytem-
perature is automatically calculated by the boiler, although the user may
modifytheboilersettings.UsingtheinterfacetomodifytheHEATING,you
willnothavetheHEATINGSET-POINTvalueavailable,butavaluethat
youcansetaspreferredbetween15and25°C.Themodicationofthis
value will not directly modify the delivery temperature, but will automati-
cally affect the calculation that determines the value of that temperature,
alteringthereferencetemperatureinthesystem(0=20°C).
Boiler connected to a programmable timer (JUMPER JP6 inserted)
With the contact closed, the heat request is made by the delivery sen-
sor, on the basis of the external temperature, to obtain a nominal indoor
temperatureonDAYlevel(20°C).Withthecontactopen,theboilerisnot
switched off, but the weather curve is reduced (parallel shift) to NIGHT
level(16°C).
Thisactivatesthenight-timefunction.
The delivery temperature is automatically calculated by the boiler, al-
thoughtheusermaymodifytheboilersettings.
Using the interface to modify the HEATING, you will not have the HEAT-
INGSET-POINTvalueavailable,butavaluethatyoucansetaspreferred
between25and15°C.
Themodicationofthisvaluewillnotdirectlymodifythedeliverytempera-
ture, but will automatically affect the calculation that determines the value
of that temperature, altering the reference temperature in the system (0 =
20°CforDAYlevel,and16°CforNIGHTlevel).
4.7 Adjustments
The boiler has already been adjusted by the manufacturer during produc-
tion.Iftheadjustmentsneedtobemadeagain,forexampleafterextraor-
dinary maintenance, replacement of the gas valve, or conversion from
methanegastoLPG,observethefollowingprocedures.
The adjustment of the maximum and minimum output, and of the maxi-
mum and minimum heating and of slow switch-on, must be made strictly in
thesequenceindicated,andonlybyqualiedpersonnelonly:
- disconnect the boiler from the power supply
- turn the heating water temperature selector to its maximum
- loosenthexingscrews(E)ontheinstrumentpanel(g.14)
- lift then turn the instrument panel towards you
- loosenthexingscrewsonthecover(F)toaccesstheterminalboard
(g.16)
- insertthejumpersJP1andJP3(g.39)
- power up the boiler
ThethreeLEDsontheinstrumentpanelashsimultaneouslyandthedis-
play shows “ADJ” for approximately 4 seconds
Next change the following parameters:
1 - Domestic hot water/absolute maximum
2 - Minimum
3 - Heating maximum
4 - Slow switch-on
as follows:
- turn the heating water temperature selector to set the required value
- presstheCObutton(g.26)andthenskiptothecalibrationofthenext
parameter.
Live electrical parts (230 V AC).
The following icons light up on the monitor:
1. during domestic hot water/absolute maximum calibration
2. during minimum calibration
3. during heating maximum calibration
4. during slow switch-on calibration
EndtheprocedurebyremovingjumpersJP1andJP3tostoretheseset
valuesinthememory.
THE function can be ended at any time without storing the set values in the
memory and retaining the original values as follows:
- removejumpersJP1andJP3beforeall4parametershavebeenset
- set the function selector to (OFF/RESET)
- cutthepowersupply15minutesafteritisconnected.
Calibrationcanbecarriedoutwithoutpoweringuptheboiler.
By turning the heating selection knob, the monitor automatically
showsthenumberofrotations,expressedinhundreds(e.g.25=
2,500rpm).
The function for visualizing the setting parameters is activated by the function
selector in summer and in winter, by pressing the CO button on the circuit
envisageddeliveryT.-Tshift
KT=
20-min.envisagedexternalT.

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