Kiturami K1-22E User manual

Model : K1-22E/28E/34E/40E
(Wall Hung type & Indirectly Water heater
& Combination boiler)
• NaturalGas(NG)– Factory Default
• LiquidPropaneGas(LP)– Field-replaceable
 (Refertothegasconversionmanual.)
Manual
WARNING
ReadtheInstallationManualcarefullyandbesurethatyourcombinationboilerhasproperlyassembled,
installedandmaintained.Failuretofollowtheseinstructionsexactlycouldresultinareorexplosion,
seriousbodilyinjuryand/orpropertydamage.
Thisproductmustbeinstalledandservicedbyalicensedplumber,alicensedgastter,oraprofessional
technicianinaccordancewithalllocalcodes.
Improperinstallationand/oroperationbyanunqualiedpersonwillvoidthewarranty.
– Donotstoreorusegasolineorotherammablevaporsandliquidsinthevicinityofthisoranyotherappliance.
– WHATTODOIFYOUSMELLGAS
· Donottrytolightanyappliance.
· Donottouchanyelectricalswitch;donotuseanyphoneinyourbuilding.
· Immediatelycallyourgassupplierfromaneighbor’sphone.Followthegassupplier’sinstructions.
· Ifyoucannotreachyourgassupplier,calltheredepartment.
– Installationandservicemustbeperformedbyaqualiedinstaller,serviceagencyorthegassupplier.
Iftheinformationinthese instructions are not followed exactly, a re or explosion mayresultcausingproperty
damage,personalinjuryordeath.
K1-22E/28E/34E/40E COMBINATION BOILER
ۣૐ ۞ইૐ઺Ҵૐ ೠҴ࢑সӏѺ ಿ૕҃৔మ
<유럽-CE 인증> <터키-TSE 인증> <러시아-GOST R 인증>
<러시아-CTR 인증> <카자흐스탄-GOT 인증> <우크라이나-GOST 인증>
<관세동맹국-EAS 인증> <미국-ETL 인증> <미국-Energy Star 인증>
<미국-NSF 372 인증> <미국-NSF 5 인증> <미국-SQAMD 인증>
<미국-ASME H 인증><미국-ASME HLW 인증>
<국제표준규격>
<일본 JIA 인증>
<CTI 인증> <AMCA 인증>
<중국 인증>
<북미 인증>
<ASME 인증> <AHRI 550/590인증> <AHRI 410인증>

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
1. Safety 4
1.1SafetySymbols 4
2. Introduction 5
2.1GeneralInformation 5
2.2AdvicefortheInstaller 5
2.3CELabeling 5
3. Product Information 6
3.1Accessories 6
3.2Specication 8
3.3ControlPanel 11
3.4ControlPanelLCD 12
3.5ElectricalDiagram 13
3.6Dimension 14
3.7Namesofcomponents 15
4. Description of the Boiler 16
4.1GeneralDescription 16
4.2OperatingMode 16
4.2.1CentralHeatingMode 16
4.2.2DomesticHotWaterMode 16
4.2.4ElectricalDevicesStickPrevention 16
5. Before Installation 18
5.1CleaningPrimarySystem 18
5.2ElectricalSupply 18
5.3GasSupply 18
5.4WaterSupply 18
5.5ChoiceoftheLocation 19
5.5.1LocationoftheBoiler 19
5.5.2Ventilation 19
5.5.3AvailablePumpHead 19
5.5.4CondensateDrain 20
5.5.5MinimumClearances 22
5.5.6FlueTerminalPosition 22
5.5.7BasicConnectingtheFlue 23
5.5.8FittingtheCoaxialFlue(Horizontal) 24
5.5.9FittingtheCoaxialFlue(Vertical) 25
5.5.10FittingtheTwinFlue 26
5.6Unpacking 27
5.7Preparingthewall 28
5.8HeatingSystemFillingandPressurizing 28
5.9DHWSystemFilling 28
6. Installation 29
6.1FlueSystemConnection 29
6.2ElectricalConnection 29
6.2.1PowerCableConnection 29
6.2.2RoomThermostatconnection 30
6.2.3OutdoorSensorConnection 30
-Index-

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
7. Commissioning 31
7.1BeforecommissioningProcedures 31
7.2CommissioningProcedures 31
7.2.1Air-Derationfunction 31
7.2.2GasSetting 31
7.3GasConversion 33
7.3.1NaturalGastoPropaneConversion 33
8. Operating the Boiler 34
8.1AdjustingtheTemperature 34
8.2AdjustingtheHotWaterTemperature 35
8.3StatusMode 36
8.3.1Settingthestatusmode 36
8.4InstallerMode 37
8.4.1Settingtheinstallermode 37
9. Troubleshooting 40
9.1ErrorCodes 40
10. Spare Part List 42

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
DANGER
Indicates an imminently hazardous situation which, if not
avoided,willresultindeathorseriousinjury.Thissignalword
islimitedtothemostextremesituations.
WARNING
Indicatesapotentiallyhazardoussituationwhich,ifnotavoid-
ed,couldresultindeathorseriousinjury.
CAUTION
Indicatesapotentiallyhazardoussituationwhich,ifnotavoid-
ed,mayresultinminorormoderateinjury.Itisalsousedto
alert against unsafe practices and hazards involving only
propertydamage.
1.1 Safety Symbols
Inthisinstruction,variouslevelsareemployedtodrawthe
user’sattentiontoparticularinformation.Insodoing,wewish
tosafeguardtheuser’ssafety,preventhazardsandguarantee
correctoperationoftheboiler.
Forsafetysymbols,‘DANGER’,‘WARNING’,‘CAUTION’are
indicatedandthedenitionsforthesetermsareasfollow:
1. Safety
WHATTODOIFYOUSMELLGAS
WARNING
FORYOURSAFETYREADBEFOREOPERATING
If you do not follow these instructions exactly, a re or
explosioncouldresultcausingpropertydamage,personal
injuryorlossoflife.
A.Thisappliancedoesnothaveapilot.Itisequippedwith
anignitiondevicewhichautomaticallylightstheburner.
Donottrytolighttheburnerbyhand.
B.BEFORE OPERATING smell all around the appliance
areaforgas.Besuretosmellnexttotheoorbecause
somegasisheavierthanairandwillsettleontheoor.
•Donottrytolightanyappliance.
•Do not touch any electric switch; do not use any phone in
yourbuilding.
•Immediatelycallyourgassupplierfromaneighbor’sphone.
Followthegassupplier’sinstructions.
•Ifyoucannotreachyourgassupplier,calltheredepartment.
C.Useonlyyourhandtopushinorturnthegascontrolknob.
Neverusetools.Iftheknobwillnotpushinorturnbyhand,
don’ttrytorepairit,callaqualiedservicetechnician.Force
orattemptedrepairmayresultinareorexplosion.
D.Donotusethisapplianceifanyparthasbeenunderwater.
Immediatelycallaqualiedservicetechniciantoinspectthe
applianceandtoreplaceanypartofthecontrolsystemand
anygascontrolwhichhasbeenunderwater.

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
2.1 General Information
TheKituramiCombiBoilersarewallmounted,fullyautomation,
operationmodulating,highefcient,condensingcombinationgas
boilers.
▪CentralHeating(CH)outputisfullymodulatingwitharangeof:
- 22 K1-22E
- 28 K1-28E
- 34 K1-34E
- 40 K1-40E
▪Instantaneousdomestichotwater(DHW)outputisalsofully
modulatingwithamaximumof:
- 22 K1-22E
- 28 K1-28E
- 34 K1-34E
- 40 K1-40E
ThisboilerissuppliedassembledwithDHWplateheat
exchanger,divertvalve,higheffiencypump,pressuresensor,
safetyreliefvalveandCHexpansiontank.
Andalsothisboilerincludesbelow,
-Automaticbypass
-Frostprotection
-Self-diagnosticssystem
CHandDHW’stemperaturecontrolsystemalsoarefully
automaticandarrangedontheFrontControlPanelinwhich
monitoringinallconditionseasilyfortheusersandinstallers.
2.3 CE Labeling
KituramitheseboilersconformedtothefollowingStandard
andDirectives;
▪Gasappliance:Directive2009/142/EEC
StandardEN15502
▪BoilerEfciency:Directive92/42/EECand93/68/EEC
StandardEN15502
▪LowVoltage:Directive73/23/EECand93/68/EEC
StandardEN60335-1,EN60338-2-30
▪Electro-MagneticCompatibility:Directive2004/108/EC
StandardEN55014Product/Productioncertiedby:
NotifyBody1015
Theinstallationoftheboilermustbeperformedby
qualifiedpersonnelincompliancewithcurrentnational
regulationsregardinginstallation,andinconformitywith
anyrequirementsestablishedbylocalauthoritiesand
publichealthorganizations.
Aftertheboilerhasbeeninstalled,andinstallermust
ensurethattheenduserreceivesthedeclarationof
conformityandtheoperatingmanual,andshouldprovide
allnecessaryinformationastohowtheboilerandthe
safetydevicesshouldbehandled.
2.2AdvicefortheInstaller
2. Introduction

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
Item Description Qty
Kiturami
CombinationBoiler 1
Manual 1
GasConversionKit 1
SparePartsKit
GasketsandO-Rings 1
Anchor 1
3. Product Information
3.1 Accessories (Included Accessories)

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
RoomThermostat 1
CondensateHose 1
Item Description Qty

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
Model Unit K1-22E K1-28E K1-34E K1-40E
NominalHeatInput[GCV] kW 21.5-3.8 27.3-3.8 33.1-4.7 38.8-11.6
NominalHeatInput[NCV] kW 17.7–3.3 23.5–3.3 29.3–4.14 35.0–9.0
DHWInput(Max-Min)[GCV] kW 27.3-3.8 27.3-3.8 33.1-4.7 38.8-11.6
HeatingOutput(Max-Min)at
80/60°C kW 18.7-3.1 23.3-3.1 29.1-4.0 34.9-10.9
DHWOutput(Max-Min) kW 23.3-3.1 23.3-3.1 29.1-4.0 34.9-10.9
CondensingHeatingOutput
(Max-Min)at50/30C kW 20.6-3.5 25.9-3.5 32.5-4.4 37.2-11.3
EfficiencyatMax-Arithm.Mean-
MinOutputat80/60C[NCV] %98.4/97.8/
94.8
98.4/97.8/
94.8
98.4/99.1/
97.5
98.4/99.1/
97.5
EfficiencyatMax-MinOutputat
50/30C[NCV] %107.9/
106.4
107.9/
106.4
105.1/
108.5
105.1/
108.5
PartloadEfficiency(30%)with
30°Creturntemperature[NCV] %105.1 105.1 107.1 107.1
Massrateofcombustionproductsat
Max-Minindomesticwatermode g/s 12.55/1.63 12.55/1.63 15.22/2.09 17.84/5.9
Massrateofcombustionproductsat
Max-Mininheatingmode g/s 9.89/1.63 12.55/1.63 15.22/2.09 17.84/5.9
NOxClass - 6 6 6 6
GasConsumptionatnominal
input m3/h
G20 G31 G20 G31 G20 G31 G20 G31
1.88 0.81 2.39 1.03 2.90 1.25 3.4 1.46
ApplianceCategory - II2H3P,II2E3P,II2Er3P
ApplianceHeatingCircuitSystem -ClosedCircuit
ApplianceInstallation - Wall Mounted
SafetyDischargeHeatingCircuitPr
essure Bar 3.0
OperatingHeatingCircuitPressure
(Max/Min) Bar 2.5~0.7
MaximumCentralHeatingCircuitT
emperature C 85
AdjustableCentralHeatingCircuitT
emperature C45~85
SystemExpansionVesselTotalVol
ume Liter 8
ExpansionVesselFactorySettingP
ressure Bar 1.0
MinimumDHWPressure Bar 1.05 1.05 1.09 1.09
MinimumDHWFlowRate Liter 1.6
MaximumDHWPressure Bar 10.0
3.2 Specication

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
Model Unit K1-22E K1-28E K1-34E K1-40E
SpecicFlow(dt=25°C)
Liter/
min
13.3 13.3 16.6 20
SpecicFlow(dt=30°C) 10.0 11.1 13.9 16.7
SpecicFlow(dt=45°C) 7.4 7.4 9.2 11.1
Electrical Supply V/Hz 230V/50Hz
ElectricalMaximumConsumption W115
Type ofFuel - G20(NaturalGas)),G31(PropaneGas)
GasSupply mbar G20/20mbar,G31/37mbar
ElectricalSystemProtection -IPX4D
ApplianceFlueSystem
(AirIntake/FlueExhaust) -B23-C13-C33-C43-C53-C63-C83-C93
Indirectcountriesofdestination -CH,CZ,ES,GB,GR,IE,IT,LT,PL,SI,SK
DiameterforFlueSystem -CoaxialØ60/100andSeparatelyFlueØ80/80
Dimension(WidthxDepthx
Height) mm 440x394x740
WeightwithPackagedBoiler
Carton&Accessories kg 39 41
WeightwithoutPackagedBoiler
Carton&Accessories 36 38
Connection
Diameter
Heating mm 22
DHW mm 15
Gas mm 22
Condensate
Drain mm 15

10
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
TechnicalParametersforboilercombinationheaters
ThefollowingproductdatasatisfytherequirementsoftheEURegulationsNo.813/2013AnnexII5.
KITURAMI K1
COMBIErP Symbol(unit) K1-22E K1-28E K1-34E K1-40E
Rated Heat Output
At rated Heat
Output (Arithmetic
mean)
P4(kW) 10.95 13.25 16.55 22.6
At 30% of rated
heat output P1(kW) 3.6 4.4 5.3 7.3
AuxiliaryelectricityConsumption
At full load
(Arithmetic mean
input)
elmin(kW) 0.028 0.035 0.038 0.047
At part load (30%
of Arithmetic) elmin(kW) 0.019 0.02 0.022 0.020
Instandbymode PSB(kW) 0.005 0.005 0.003 0.005
SeasonalSpaceHeatingEnergyEfciency
SeasonalSpace
Heating Energy
Efciency(GCV)
ηs(%) 91 90 91 91
At rated Heat
Output (Arithmetic
mean)(GCV)
η4(%) 89.4 88.9 88.7 88.3
At 30% of rated
heatoutput(GCV) η1(%) 96.8 95.6 96 95.6
ForCombinationHeaters
Declareloadprole -XL XL XL XL
Daily electricity
consumption Qelec(kWh) 0.230 0.230 0.218 0.218
Water heating
energyefciency ηwh(%) 80 80 81 81
Daily Fuel
Consumption Qfuel(kWh) 15.917 15.917 15.553 15.730
OtherItems
StandbyHeatLoss Pstby(kW) 0.090 0.075 0.056 0.053
Emissionsof
NitrogenOxides NOx(mg/kWh) 15(NCV) 13(GCV)
17(NCV)
16(GCV)
9(NCV)
8(GCV)
16(NCV)
15(GCV)

11
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
KITURAMI K1
COMBIErP Symbol(unit) K1-22E K1-28E K1-34E K1-40E
Rated Heat Output
At rated Heat
Output (Arithmetic
mean)
P4(kW) 10.95 13.25 16.55 22.6
At 30% of rated
heat output P1(kW) 3.6 4.4 5.3 7.3
AuxiliaryelectricityConsumption
At full load
(Arithmetic mean
input)
elmin(kW) 0.028 0.035 0.038 0.047
At part load (30%
of Arithmetic) elmin(kW) 0.019 0.02 0.022 0.020
Instandbymode PSB(kW) 0.005 0.005 0.003 0.005
SeasonalSpaceHeatingEnergyEfciency
SeasonalSpace
Heating Energy
Efciency(GCV)
ηs(%) 91 90 91 91
At rated Heat
Output (Arithmetic
mean)(GCV)
η4(%) 89.4 88.9 88.7 88.3
At 30% of rated
heatoutput(GCV) η1(%) 96.8 95.6 96 95.6
ForCombinationHeaters
Declareloadprole -XL XL XL XL
Daily electricity
consumption Qelec(kWh) 0.230 0.230 0.218 0.218
Water heating
energyefciency ηwh(%) 80 80 81 81
Daily Fuel
Consumption Qfuel(kWh) 15.917 15.917 15.553 15.730
OtherItems
StandbyHeatLoss Pstby(kW) 0.090 0.075 0.056 0.053
Emissionsof
NitrogenOxides NOx(mg/kWh) 15(NCV) 13(GCV)
17(NCV)
16(GCV)
9(NCV)
8(GCV)
16(NCV)
15(GCV)
3.3 Control Panel
Buttons Functionality
Press (under 5 seconds) Press and Hold (more than 5 seconds)
PowerON/OFFButton ControlPanelPowerON/OFF N/A
FunctionButton Cancel / Return
Statusdisplaymodeatpower
ONmode.
InstallerModeatpowerOFFmode
DomesticHotWater(DHW)
Temperature Setting
Button
DHW Temperature Setting Mode
:Max49°C(120°F)
Higher DHW Temperature Setting Mode
:Max60°C(140°F)
Heating Temperature
SettingButton
1.Whenconnectinganexternalinput
:IndicatescalculatedCHsetvalue
2.Normal:CHset-pointchangemode
Temperature Unit Change (°C / °F)
Dial(Enter)Button MenuandValueUp(+)/Down(-) N/A
Display Screen
Indicator (Green)
Domestic Hot Water(DHW) Temperature Setting Button
Dial Button / Enter
Function Button
Heating Temperature Setting Button
Power ON / OFF Button
ForturningtheCombiBoileron/off.
P-920CE

12
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
LCDhasabacklightthatwillilluminate:
•Whenauseractionisdetected(abuttonispressed).
•Thetimeoutisapproximately20seconds.
3.4 Control Panel LCD
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19
S8~14
Segment Name Description
Testmode Testmodeindication
Anti-freezemode Anti-freezemodeindication
Storage Heating mode StoredWaterBeingHeated,canbe
adjusted
Lockmode Buttons-lockedmodeicon
Communication Communication icon
CH mode CentralHeatmodeiconcanbeadjusted
Outsidetemp Operatingbyoutsidetemperature
DHW mode CombinationboilerSetPoint,canbeadjusted
StatusandInstallermode TheStatusModeortheInstallerModeisActive
(allparameters)
Flamesignal Flame Signal icon
Pumpicon Water pump operation (CH or DHW) icon
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14
S1
S21
S23
S2 S3 S4 S5 S6 S36
S7
S37
S39
S22
S24 S28
S35
S38
S29 S30 S32 S33
S31
1 2 3 4
S15~19S8~14

13
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
3.5 Electrical Diagram
10
M
9
Circulation Pump
W
10
Ignition
R
R
L(BRN)
N(BLU)
1AC 230V POWER
Color Designations
Black (BK)
Red (R)
Yellow (Y)
Green (G)
Blue (BL)
White (W)
Purple (P)
Orange (Or)
BRN (Br)
GRY (Gr)
Light BLU (LgL) Light GRN (LgG)
W
BK
R
W
R
W
R BK
W
BK
BK
BK
BK
BL
W
FG(Y)
DC24V(W)
GND(BL)
VDD(R)
M
7
8 4
3 2
DC FAN MOTOR
DC24V(BK)
R
R
8
W
V
V
GAS Valve 1
5
APS
¹ ͽ ̹ ºë (ê» ï¹ ºæ)¯
2
3
V_24
Y
/Y V_24
/X
X
GND
PUMP PWM PUMP RPM
HI water sensor
APS Flame
12 1
Thermostat
13
16
sensor
2
TEMP
19
8
CH
TEMP
20
9
sensor
16 5 15
LOW water sensor
sensor
DHW
Pressure
sensor
FLOW
14
15
TEMP
22
11
HEAT OVER
21
10
INPUT
3
G
W
4
18 17
7
BK
6
Exhaust
R
HeatDemand
1 6
6GND(W)
GND(W)
G
5
7
6
CASE GND
RBK W R BR
TEMP
switch

14
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
135 165
440
71
72 65 66 67 65
197
389
740
150
275
289
AB
E
DC
3.6 Dimension
F
G
Description Diameter
A
GasInlet
3/4"PT
B
CondensateDrain
1/2"
C Central Heating Outlet 3/4"PT
D
DomesticHotWater
Outlet
1/2"PT
E
DomesticHotWater
Inlet
1/2"PT
F Central Heating Return 3/4"PT
G
SafetyReliefValveDrain
3/4"PT

15
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
NO NameofComponent
1
Flue Connection
2
AirPressureSensor
3
ExhaustSensor
4
AirVent
5
AGMMixer
6
GasPipe1
7Central
HeatingOutletPipe
8
GasValve
9
FlameSensor
10
ExhaustPipe
11
GasPipe2
12
DisplayPanel
13
CondensateBody
14
TerminalBlock
15
AirPressureSwitch
NO NameofComponent
16 Central
Heating Outlet
17
GasValveAdapter
18
DHW Outlet
19
Condensatedrain
20
DHW Inlet
21 Central
Heating Inlet
22
GrundfosPumpBlock
23
HeatingWaterInletPipe
24
Main Controller
25
HeatExchanger
26
LowWaterSensor
27
Ignition Rod
28
IgnitionTransformer
29
FanAssembly
30
NitrogenTank
3.7 Names of components

16
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
4.1 General Description
▪ ThisKituramiK1SeriesCombiboilersarefully
automaticgasredwallmountedcondensingcombination
boilers.
Theyareperfectlyroomsealedandfanassisted,andwill
servecentralheatingandprovidedomestichotwater.
▪ Theboilerissettogiveamaximumoutputof:
- 22Emodel,18.7kW
- 28Emodel,23.3kW
- 34Emodel,29.1kW
- 40Emodel,34.9kW
▪ Theboilerissuitableforuseonlyfullypumpedbuilt-infor
heatingsystem.Priorityisgiventodomestichotwater.
4. Description of the Boiler
4.2.2DHWMode
▪ Whenahotwaterfaucetopensinthehomewhereany
places,theboilerowsensordetectsDHWdemand,the
3-WayValvemovestoDHWmodeandthehighefency
pumpruns,whichmakesthehotwaterintheboilerprimary
circuitowthroughtheDHWheatexchanger,making
instanthotwater.
▪ DHWproductionmodeendswhentheDHWowstops.
DuringtheDHWmode,theboilercheckstwotemperature
sensorsbytheDHWandtheCHthermistors.
▪ WhenthereisnofurtherDHWdemand,e.g.thehotwater
faucetstopped,theburnerswitchesOffandthe3-Way
ValveremainsinDHWmodesideduringawaittime,so
thatitcanworkmoreefcientlyandprovidemoreexibility
ifthetapsarecontinuouslyturnedonandoff.
▪ Whenthewaittimehaselapsed,the3-WayValvereturns
totheheatingsideandtheboilerisreadytosupplyheating.
▪ Operating Principle (Central Heating Mode)
4.2 Operating Mode
4.2.1CentralHeatingMode
▪ TooperatetheCHmode,presstheCHbuttononthe
controlpanelandsettingaCHtemperatureset-point
higherthancurrentCHtemperature.
▪ TheCHmodebeginswhentheheatingdemandcomes
frominstalledroomthermostat,forexample,underthe
conditiontheboilerissetin‘Heat’condition.
▪ IftheroomthermostatisnotconnectedtheCHmode
beginsassoonastheboilerissetin‘CallforHeat’
condition.
▪ 3-WayValvemovestoheatingsideandthehighefency
pumpandfanareenergizedstartsup,andafterchecking
thefanspeedsuitableforacorrectburnerignition,the
burnercontrolworkingisenabled.
▪ Iftheboiler’ssupplywatertemperatureislowerthanthe
desiredtemperatureset-point,theboilerigniteright
awayandheatsuptheheatingsystemuntilthedesired
temperatureisreached.
▪ Iftheburnermodulationpointisreached,therisingof
capacityisstoppedandthecontrolpassestothe
modulationmodetoachievetheCHset-point.
▪ Incaseofthewatertemperatureexceedsthetemperature
set-pointinCHmodeorthereisnofurthercallforheat(e.g.
notcomefromroomthermostat),theburnerswitchesOff
andtheanti-fastcyclingtimerisactivated.
▪ Theburnerstartsagainwhenthewatertemperaturefalls
underthetemperatureset-pointinCHmodeandifthe
AFCTisnished.
Exhaust Gas
Air In
CH Return
CH Outlet
Air In

17
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
▪ Operating Principle (DHW Mode)
4.2.3ElectricalDevicesStickPrevention
▪ Thisactivatesonceaweekiftherehasbeenanydemand.
Theelectricaldevicesrunfor30secondstopreventsticking.
Exhaust Gas
Air In
Air In
Cold Water Inlet
DHW Outlet

18
ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
5. Before Installation
DANGER
CAUTION
Thisboilermustbeinstalledbyqualiedprersonnelin
compliancewiththeapplicablelawsandregulations.in
general,theselawsandregulationsarethebasicgas
insatllationstandards,andallotherlocalregulations.
Isolatethemainssuppliesbeforestartinganyworkand
observeallrelevantsafetyprecautions.
5.1 Cleaning Primary System
▪Debrisfromthesystemcandamagetheboilerandreduce
efciency.Failuretocomplywiththeguidelinesfortheuse
ofwatertreatmentwiththeappliancewillinvalidatethe
applianceguaranteeandcontravenetheBuilding
Regulations.
▪Itisrecommendedthatyoutaprimarywatercleanserto
thesystem.KITURAMIrecommendsttingalterthatwill
helpremovebothmagnetiteandnon-magneticdebris.
5.2 Electrical Supply
▪Theappliancerequiresanearth230V~50Hzsupplyand
mustbeinaccordancewithlocalregulations.
▪Itmustalsobepossibletobeabletocompletelyisolate
theapplianceelectrically.Connectionshouldbeviaa3amp
doublepolefusedisolatingswitchwithcontactseparationof
atleast3mmonbothpoles.Alternatively,afused3Amp,
3pinplugandun-switchedsocketmaybeused,providedit
isnotusedinaroomcontainingabathorshower.
Itshouldonlysupplytheappliance.
5.3 Gas Supply
▪Thegasinstallationshouldbeinaccordancewiththelocal
codesandrelevantregulations.
▪Theconnectionofgassupplytotheboilerisa22mm
locatedattherearofthegasservicecock.
▪BoilerusingNaturalGas(NG)mustbeconnectedtoa
governedmeter.
▪LiquidPetroleumGas(LPG)mustbeconnectedtoa
regulatorproperly.
▪Ensurethatthepipeworkfromthemetertotheboilerisof
adequatesize,andthedemandsofanyothergas
appliancesinthepropertyaretakenintoconsideration.Itis
highlyrecommendedthatpipeofatleast22mmdiameteris
used.
▪Thegasservicecockincorporatesapressuretestpoint.
Theservicecockmustbeontocheckthepressure.
▪Themeterorregulatorandpipeworktothemetermustbe
checked,preferablybythegassupplier.
▪Ifyouusegasotherthantheonespeciedintheboiler
lowerrighthandratingplate,itmaycauseincomplete
combustionthatcancauseareoranexplosiveignition.
▪Whenusingagascontainer,placethecontainerinthecool
shadyplaceawayfromdirectsunlightintheoutdoorsandx
thecontainerproperlytopreventtipping.
5.4 Water Supply
Thisboilerissuitableforsealedheatingsystemonly.
▪Theboilerissuitableforsealedsystemonly.Themaximum
workingpressurefortheapplianceis3bar.
▪Allttingsandpipe-workfortheapplianceshouldbeof
thesamestandard.Ifthereisapossibilityoftheincoming
mainspressureexceeding3bar,particularlyatnight,thena
suitablepressurelimitingvalvemustbettedonthe
incomingposition.
▪Theboilerdesignedtoprovidehotwaterondemandto
multipleoutletswithintheproperty.Ifthereisarequirement
forgreaterdemands,forexampleiftheboilerhasseveral
bathroomsandcloakrooms,aventedorunventedhotwater
storagesystemmaybeused.
FLUSHINGTHESYSTEM
▪Fillthesystemwithcoldwaterandcheckforleaks.
▪Openalldraincocksanddrainthesystem.
▪Closedraincocksandaddasuitableushingagent
compatiblewithaluminumatthecorrectstrengthforthe
systemconditionsinaccordancewiththemanufacturer‘s
instructions.
▪ThepHvalueofthesystemwatermustbelessthan8or
theapplianceguaranteewillbeinvalidated.
▪Circulatetheushingagentbeforetheboilerisredup.
▪Runtheboiler/systematnormaloperatingtemperatureas
directedbythemanufactureroftheushingagent.
▪Drainandthoroughlyushthesystemtoremovethe
ushingagentanddebris.
▪Itmaybenecessarytouseapowerushingmachinetoaid
thecleansingprocedureinsomecircumstances.
▪Closethedraincocksandrellwithfreshwateranda
suitableinhibitor.
▪Ventanyairfromtheboilerandsystem.
NOTE:Watertreatment

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
5.5 Choice of the Location
5.5.1Locationoftheboiler
Locatetheboilerinanareawhereleakagefromtheboiler
orconnectionswillnotresultindamagetotheareaadjacent
totheboilerortotheloweroorofthestructure.Whensuch
locationscannotbeavoided,itisrequiredthatasuitable
drainpan,adequatelydrained,beinstalledundertheboiler.
▪Theboilermaybettedtoanysuitablewallwiththeue
passingthroughanoutsidewallorroofanddischargingto
atmosphereinapositionpermittingsatisfactoryremovalof
combustionproductsandprovidinganadequateairsupply.
▪Theboilershouldbettedwithinthebuildingunless
otherwiseprotectedbyasuitableenclosurei.e.garageor
outhouse.(Theboilermaybettedinsideofcupboard.)
5.5.2Ventilation
Wheretheapplianceisinstalledinacupboardorcompartment,
noairventsarerequired.LocalCodesrefertoroomsealed
appliancesinstalledincompartments.Theappliancewillrun
sufcientlycoolwithoutventilation.
Examplesareshownofthefollowingmethodsoftermination:
▪toaninternalsoil&ventpipe
▪viaaninternaldischargebranch(e.g.sinkwaste)
downstreamofthetrap
▪toadrainorgully
▪toapurposemadesoakaway
▪pumpedintoaninternaldischargebranch(e.g.sinkwaste)
downstreamofthetrappumpedintoanexternalsoil&vent
pipe.
▪toadrainorgullywithextendedexternalrun&traceheating.
5.5.3AvailablePumpHead
K1boilersaresuppliedwithbuilt-incirculatingpump.
Theavailableheadtothesystemareshowedinthefollowing
diagrams.
▪Wheretheboilerissitedinanunheatedenclosureand
duringperiodswhentheheatingsystemistobeunused
itisrecommendedthatthepermanentliveisleftontogive
BOILERfrostprotection.
▪Iftheboileristtedinaroomcontainingabothorshower
referencemustbemadetotherelevantrequirementsor
WiringRegulations,BuildingRegulations.
▪Iftheboileristobettedintoabuildingoftimberframe
constructionthenreferencemustbemadetothecurrentor
latesteditionofInstituteofGasEngineersPublication.
-PumpPerformanceCurve
Allboilers[KE-22E/28E/34E/40E]wereinstalledbythesame
pumpswhichmadeingrundfosModelNo.UPS15-60.

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ۣૐ ۞ইૐ઺ҴૐೠҴ࢑সӏѺ ಿ૕҃৔మ
5.5.4CondensateDrain
▪Metalpipeworkisnotsuitableforuseincondensate
dischargesystems.
▪Thepipeshouldbeaminimumof21.5mmdiameterand
mustbesupportedusingsuitablyspacedclipsofthe
correctdesigntopreventsagging.
▪Itisadvisablethatthefulllengthofcondensatepipeisrun
internallyandpreferablybelessthan3meters.
▪Internalrunsgreaterthan3metersorrunsincoldareas
shoulduse32mmwaterpipe.
▪Externalrunsmustbeaminimumof32mmandfully
insulatedwithmaterialsuitableforexternaluse.
▪Iftheboileristtedinanunheatedlocationtheentire
condensatedischargepipeshouldbetreatedasanexternal
runandsizedandinsulatedaccordingly.
▪Inallcasesdischargepipemustbeinstalledtoaiddisposal
ofthecondensate.Toreducetheriskofcondensatebeing
trapped,asfewbendsandttingsaspossibleshouldbe
usedandanyburrsoncutpiperemoved.
▪Whendischargingcondensateintoasoilstackorwaste
pipetheeffectsofexistingplumbingmustbeconsidered.
Ifsoilpipesorwastearesubjectedtointernalpressure
uctuationswhenWC’sareushedorsinksemptiedthen
backpressuremayforcewateroutoftheboilertrapand
causeappliancelockout.
▪Aboilerdischargepumpisavailablewhichwilldispose
ofbothcondensateandhightemperaturewaterfromthe
reliefvalve.Ithasamaximumheadof5meters.Followthe
instructionssuppliedwiththepump.
▪CondensateDrainPipe‘TraceHeating’elementsare
availableinvariouslengths,1,2,3&5meters.Wherethe
drainisbetween3&5metersa5meterskitcanbeused
and‘doubleback’uponitself.
▪Itispossibletottheelementexternallyonthecondensate
drainorinternallyasdetailedintheinstructionsprovided.
▪Thettingofa‘TraceHeating’elementisnotasubstitutefor
correctinstallationofthecondensatedrain.Allrequirements
inthissectionmuststillbeadheredto.
Note:Ifanycondensatepipeworkistobeinstalledexternally
thenitshouldbekepttoaminimumandbeinsulatedwitha
waterproofinsulationandhaveacontinuousfall.
Thetotallengthofexternalpipeusedshouldnotexceed3
meters.
DANGER
Riskofdeathfromescapinguegases!
TheCondensatedrainpipeworkforthesiphonmustnotbe
connectedtightlytowastewaterpipingbecause,otherwise,
theinternalcondensatetrapmaybedrainedfullyandue
gasmayescape.
Theboilercondensatetrapincludedaseal,thereforeitis
unnecessarytoinstallanairbreakandtrapinthedischarge
pipework.
▪Thecondensateoutletwillaccept21.5mm(3/4")plastic
overowpipe.Itishighlyrecommendedthatthisdischarge
internallyintothehouseholddrainagesystem.Wherethis
isnotpossibleprovidingeverypossibleprecautionistaken
topreventfreezing.
▪Ensurethedischargeofcondensatecomplieswithany
nationalorlocalregulationsinforce.
▪Thedischargepipeshouldberuninaproprietarydrainpipe
materiale.g.PVC,PVC-U,ABS,PVC-CorPP.
MinimumØ21.5mm
Belessthan3M