ITACA KC

Pre-set to run on natural gas or LPG

Available heat outputs:

24kW

28kW

32kW

COND

ENSI

NG B

OIL

ERS

WALL-HUNG CONDENSING COMBINATION BOILERS WITH INSTANTANEOUS PRODUCTION OF HOT WATER

➲ Modulation range 1:9

➲ Touch screen user interface

➲ Modulating pump

➲

Control of 2 heating zones fitted as standard via two temperature probes (probes not supplied)

➲

Controls to manage three different types of solar thermal systems fitted as standard

GB

ITACA KC

WARM COMFORT

• Thermopolymer-coveredstainlesssteelheatexchanger

• Fullypre-mixedburner

• Modulatinggasvalvewithconstanair-to-gasratio

• Variable-speedcombustionfan

• Modulatingpumpwithair-purgingdevice

• 10-litreexpansionvessel

• Domestichotwaterstainlesssteelplateexchangerwiththermal

insulation

• Pre-setforconnectiontoaGSMmodemforremoteswitchingonand

off and malfunction alarm (optional equipment)

• Multifunctional relay for connection to systems with zone valves or to

solar systems or to remote boiler shutdown alarms

• InstallationflexibilitythankstoIPX5Delectricalprotectiondegree

• NOxemissionclass(EN297/EN483):5

• Sedbuk%(2009): KC24(nat.gas)=88.1-KC24(LPG)=89,1 KC28(nat.gas)=88.3-KC28(LPG)=89.3 KC32(nat.gas)=89.7-KC32(LPG)=91.3

Pre-set ready for connection to (optional accessories):

•externalprobe

•remotecontrol

•PCBsforlow-temperaturezones

ThEBOIlErPaCKaGEINCluDES:standardhydraulickit,template,air-intakeblankingplate,isolationvalveskit

Modulating pumpheatexchangerandpre-mixingburner

Model Fuel Code heatoutputkWSaP2009annual

efficiencySaP2005seasonal

efficiencyGross weight

(kg)

ITaCaKC24NaT.GaS CITI22Cr24

24.988.1 89.4

39LPG CITI26Cr24 89.1 90.5

ITaCaKC28NaT.GaS CITI22Cr28

27.988.3 89.5

40.5LPG CITI26Cr28 89.3 90.6

ITaCaKC32NaT.GaS CITI22Cr32

32.388.8 89.7

41.5LPG CITI26Cr32 89.8 91.3

aCCESSOrIES

Article Description Code

Ø100/60mm,0.75metrecoaxialkit

0CONDaSP00

Ø100/60mmcoaxialkit 0KITaTCO00

90°elbowandflangekitØ60/100

0KCurFla00

SplitpipekitØ80+80 0KITSDOP00

Remote control 0CrEMOTO04

Externalprobe 0SONDaES01

Electriczonekitwithexternalprobe

0KITZONE05

Fixingtemplate(metal) 0DIMMECO11

Pipes and taps cover 0COPETuB03

GSMkitcompletewithantenna,powersupply,interfaceboard,modem

0KITMGSM00

Article Description Code

Cockfittedwithfilterandcheckvalve

0KITFIlT01

Solarconnectionkit(for combi boilers)

0KITSOlC07

Connectionkitforcomplexsolar systems

0KITSOlC08

Baxi/Itacareplacementkit 0KITSOST08

Beretta/Itacareplacementkit 0KITSOST09

Immergas/Itacareplacementkit

0KITSOST10

Vaillant/Itacareplacementkit 0KITSOST11

ariston/Itacareplacementkit 0KITSOST12

Tahiti/Itacareplacementkit 0KITSOST13

DIMENSIONSaNDCONNECTIONCENTrEDISTaNCES75

0 m

m

420 mm 315 mm76 60 62 67 82 73

63 92 190

39

100

124

3123

1012

1

750

420 315

76 60 62 67 82 73

63 92 190

39

100

124

3123

1012

1

750

420 315

76 60 62 67 82 73

63 92 190

39

100

124

3123

1012

1

G Gasinlet(1/2”)F Chflow(3/4”)DhW DhWoutlet(1/2”)

CWI Coldwaterinlet(1/2”)r Chreturn(3/4”)S Condensatedrain

S

FDHW

CWI

R

G

WARM COMFORT

Wall-huNGCONDENSINGCOMBINaTIONBOIlErSWIThPrE-MIXEDBurNEr

top view (sizes in mm)

bottom view (sizes in mm)

TECHNICAL SPECIFICATIONS KC 24 KC 28 KC 32

Gas category II2H3P II2H3P II2H3P

Nominalheatinput kW 23.7 26.4 30.4

Nominalheatoutput(80-60°C) kW 22.9 25.4 29.4

Nominalheatoutput(50-30°C) kW 24.9 27.9 32.3

Minimumheatoutput(80-60°C) kW 2.7 3.0 3.9

Minimumheatoutput(50-30°C) kW 3.22 3.58 4.4

SaP2005seasonalefficiency NaT.GaS % 89.4 89.5 89.7

SaP2005seasonalefficiency LPG % 90.5 90.6 91.3

SaP2009annualefficiency NaT.GaS % 88.1 88.3 88.8

SaP2009annualefficiency LPG % 89.1 89.3 89.8

NOxemissionclass(EN297/EN483) 5 5 5

Chmaximumworkingpressure bar 3.0 3.0 3.0

Chmaximumworkingtemperature °C 83 83 83

CH temperature range °C 20-78 20-78 20-78

Expansionvesselcapacity l 10 10 10

Consumption at nominal heat input (CH) NaT.GaS m3/h 2.51 2.79 3.22

Consumption at minimum heat input (CH) NaT.GaS m3/h 0.32 0.35 0.44

Consumption at nominal heat input (CH) LPG kg/h 1.84 2.05 2.36

Consumption at minimum heat input (CH) LPG kg/h 0.23 0.26 0.33

DhWnominalheatoutput kW 27.4 29.2 33.4

DhWminimumheatoutput kW 3.0 3.0 3.9

DhWnominalheatinput kW 27.3 30.4 34.5

DhWminimum heat input kW 3.0 3.3 4.2

DhWmaximumpressure bar 6.0 6.0 6.0

DhWminimumpressure bar 0.5 0.5 0.5

DhWnominalflowrate(∆T35°C) l/min 11.5 13.3 13.9

Chmaximumworkingtemperature °C 62 62 62

DhWtemperaturerange °C 35-57 35-57 35-57

Consumptionatnominalheatinput(DhW) NaT.GaS m3/h 2.89 3.22 3.65

Consumptionatminimumheatinput(DhW) NaT.GaS m3/h 0.32 0.35 0.44

Consumptionatnominalheatinput(DhW) LPG kg/h 2.12 2.26 2.68

Consumptionatminimumheatinput(DhW) LPG kg/h 0.23 0.26 0.33

air-flueΔTatnominalheatinput(ChandDhW) °C 61 60 60

air-flueΔTatminimumheatinput °C 33 45 40.5

Fluegasflowatnominalheatinput(DhW) g/s 12.43 13.93 15.81

Fluegasflowatmin.heatinput g/s 1.33 1.47 1.87

CO2contentatPmax NaT.GaS % 9.0 9.0 9.0

CO2contentatPmax LPG % 10.0 10.0 10.0

Residual available head at nominal heat input Pa 130 170 183

Residual available head at minimum heat input Pa 1.56 2.0 3.5

Maxsupplypressure NaT.GaS mbar 20 20 20

Maxsupplypressure LPG mbar 37 37 37

Min supply pressure NaT.GaS mbar 3.0 3.0 3.0

Min supply pressure LPG mbar 8.0 8.0 8.0

Powersupplyvoltage/frequency V/hz 230/50 230/50 230/50

Fuse on the power supply A 3.15 3.15 3.15

Power absorption W 121 121 121

Electric protection rating IPX5D IPX5D IPX5D

Gas fitting Ø G1/2 G1/2 G1/2

CH fittings Ø G3/4 G3/4 G3/4

DhWfittings Ø G1/2 G1/2 G1/2

lxhxD mm 420x750x315 420x750x315 420x750x315

Boilernetweight kg 36.9 38.4 39.4

Boilergrossweight kg 39 40.5 41.5

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TC03C368-01aprile2013(3.000-04/2013)

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368