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E-mail: info@electric-heatingcompany.co.ukor visit our website

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Electric Flow Boiler

InsTallaTIon &

TEchnIcal Manual

2GB-063C_f.706,7

Pleasereadandfollowtheinstallationoperatinginstructionscarefully,toensurethelonglifeandreliableoperationofthisappliance.TheElectricHeatingCompanymaymakeminorchangeswhennecessarytotheappliancethatwillnotbe

showninthisdocument,solongasthemainfeaturesoftheboilerremainthesame.Allboilerscomewitha24monthwarrantythatcoversalldefectsoriginatingfromfaultymaterialsandwork-

manshipinthemanufactureoftheboilers.Thewarrantywillnotcoveranydamagetotheboilerfrompoororincorrectinstallationwork.Inadditionthe

WarrantywillnotcoveranycalloutchargesthathavenotbeenauthorisedbytheElectricHeatingCompanyLtd.Thewarrantywillnotcoveranywaterleaksintotheboilerthatmaycausedamagetotheelectricalorelec-

troniccontrolsystem.Allplumbingconnectionsmustbecheckedandautoairventspositionedtothesideoftheboilerandnot

directlyabovetheunit.AMagneticFiltermustbeinstalledtotheboilersreturnpipeworkbeforethecirculationpump.Itisrecom-

mendedthatthefilteriscleaned;failuretocleantheMagneticFiltermayresultinboiler/systemfailure.War-rantycallswillnotbecoveredwheretheaboverequirementshavenotbeenmet.

The “Slim Jim” boiler is a low temperature boiler intended for use in unvented or vented central heating systems with forced circulation.

(Protected according to legally binding directives).

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not operate or interfere with the appliance.

Page Contents

INTRODUCTION 2PREPARATION 4LOCATION 4GENERAL 5BOILER INTERNAL LAYOUT 7INSTALLATION 8SYSTEM PROTECTION - COMMISSIONING 11ELECTRICAL CONNECTIONS 12ELECTRICAL CONNECTIONS 14ELECTRICAL DIAGRAM 15EXTERNAL CONTROL WIRING 17BOILER CONTROL PANEL 18TECHNICAL SPECIFICATION 19

INTRODUCTION

3GB-063C_f.706,7

Boiler Features.

• OptionofVoltFreeOR240voltControlSignalling• WaterLevelSensor• HighCurrentSafetydevice• LowMaintenance• BoilerPowerOutputSelector• EasytouseController

Thecentralheatingsystem,inwhichtheSlimJimboilerisbeinginstalledinto,mustbefittedwiththefollowing:

Vented Systems:

• CirculationPump• PumpValves• F&ETank• MagneticFilter• AutomaticBypassifReq

Sealed Systems:

• CirculationPump• PumpValves• MagneticFilter• AutomaticBypassifReq• SealedSystemKit• AutomaticAirVent

Instructions and Building Regulations:

Thisappliancemustbefittedinaccordancewiththefollowinginstructions.

TheLocalBuildingRegulations.TheBuildingRegulations.TheBuildingStandards,(Scotland-consolidated)Regulations.Localwaterbylaws.

BritishStandardscodeofpractice.BS EN 12828Heatingsystemsinbuildings.Designforwater-basedheatingsystems.

BS EN 12831Heatingsystemsinbuildings.Methodforcalculationofthedesignheatload.BS EN 14336Heatingsystemsinbuildings.Installationandcommissioningofwaterbasedheatingsystems.

BS7671Requirementsforelectricalinstallations.IEEWiringRegulations.Seventeenthedition.

BS EN 13831 Closedexpansionvesselswithbuilt-indiaphragmforinstallationinwater.

C.O.S.H.H.Materialsusedinthemanufactureofthisappliancearenonhazardousandnospecialprecautionsarere-

quiredwhenfittingorservicingthisappliance.

4GB-063C_f.706,7

1. Load Check Aloadcheckmustbetakenintoconsiderationwheninstallinghighpowerboilers.Thiscanbecarriedout

byaqualifiedelectrician.Theremaybearequirementtoupgradethemainincomingfusesupplyingtheproperty;thiswilldependontheboileroutputbeinginstalledandexistingelectricalloadrequirementsoftheproperty.

2. Boiler location Theboilermustbeinstalledontoawallthatwillprovideanadequatefixing.Precautionsmustbetakenif

theboileristobeinstalledinareassubjecttodamporfrostconditions.

3. Central heating (design & installation) DetailedrecommendationsaregiveninBSEN12828,BS6700:+A1andCP342-2.

Pipesformingpartoftheusefulheatingsurfaceshouldbeinsulatedtopreventanypotentialheatlossorfrostdamage.(BS6700).

Drainvalvesshouldbefittedatthelowestpointofthesystempipeworkinanaccessibleposition.DrainvalvesshouldbeinaccordancewithBS2879andcoppertubetoBSEN1057isrecommended.

PREPERATION

LOCATION

Theboilercanbeinstalledinalmostanylocationwithinadomesticorcommercialproperty;howevercon-siderationshouldbemadeforfuturemaintenance.Neverleavetheboilerswitchedoffifthereisadangerofhavingtemperaturesbelow0°Cintheroomwhereitislocated,(Anadditionalfroststatmustbeusedifthereisalikelihoodofthetemperaturefallingbelow0°C).Werecommendthataminimumclearanceof400mmshouldbeallocatedfortheremovalofthefrontcover

toallowadequateaccesstotheboilersplumbingandtheinternalelectricalconnections.A50mmallowanceshouldbemadeateithersideoftheboilertoallowfreeflowairintotheboiler.

! The boiler must be installed in the upright position; failure to do so will invalidate the Warranty!

5GB-063C_f.706,7

GENERAL

1. General

Theboilermustbeinstalledbyaprofessionalplumberorheatingengineerandmustbeconnectedtothepubliclowvoltagenetworkbyacompetentperson.Werecommendthisisinstalledbya17thEditioncertifiedElectrician.

The Electric Heating Company Ltd will not be held responsible for any faulty installations which are performed by unqualified tradespersons.

2. Pipe Connections

SlimJimElectricBoilershave22mmcompressionconnectionsattheboiler’sflowandreturnpipes.Pleasenotethattheboilersaresuppliedwithblankingplugsfortransitpurposes.Thesemustberemovedbeforeconnectionstoexternalpipescanbemade.

The Flow Outlet (TopRedConnection)andReturnInlet(BottomBlueConnection)areclearlymarkedwithin theboilercase.Undernocircumstancesshould theseconnectionsbereversed.HotSolderedJointsshouldnotbemadeasadirectconnectiontotheboiler,Compressionjointsshouldused.

3. Case Removal

Inordertotakeoffthefrontcover,undothefixingscrewsatthetopandbottomoftheunitandpullthecovertowardyou,Careshouldbetakennottodamagethefrontcontroller.

4. Isolation Valves

Werecommendthatlock-shieldisolationvalvesarefittedontheFlowandReturnpipe-work.Suchvalvesmustbefullboreandnot“ballvalves”.Theinstallationof“ballvalves”intheflowandreturnpipe-workwillreducetherecommendedflowratesthroughtheboiler.

! Care must be made when installing the isolation valves that the PRV and expansion positions are not impaired.

5. Auto air vents Anautoairventmustbefittedtotheexternalpipeworkwheninstalledinanunventedsystem.

! Do not install AAV’s directly above the SlimJim boilers. AAV’s should be installed to either the top left or right hand side of the boilers. (This is to prevent any water entering the boiler in the event of an AAV leaking).

6. Boiler Sizing

Calculatethe“SpaceHeating”requirementsinaccordancewithBSEN12831andBSEN14336.Iftheboileristoheatthedomestichotwater,anadditionalallowanceof3kW(10,239Btu’s)shouldbemadetothe“Spaceheating”calculationtodeterminethecorrectboileroutput.

7. Insulation

Wherepractical,andifpossible,werecommendthatallpipe-workisinsulated,inparticulartheprimarypipe-workwithinaboilercupboard.Thisistoreduceheatlossandreducehighcupboardtemperaturesfromexposedpipe-work.(BS6700+A1).

8. System Design

AstheSlimJimboilersareoflowwatercontentanopencircuitmustbeachievedincorporatingapprox2metresofcontinuous22mmpipeworkaftertheboilerconnectionsandbeforeanyzonevalves.(SPlan)Wealsorecommendthatamagneticfilterisusedandinstalledintothereturnpipeworkofthesystembeforethepumpaspertheschematiconpage10.Provisionshouldbemadetoallowthefiltertobecleanedwithoutdrainingthefullheatingsystem.

6GB-063C_f.706,7

! We recommend the use of an automatic bypass within this circuit. Ifabypassradiatorisusedanallowanceshouldbemadeforaminimumradiatorsizeof600mmx600mm

singleconvectororequalto2500Btutobeinstalledwithintheheatingcircuitandlockedopen.

(Thiswillbelocatedintheroomwherethethermostatisinstalled).

Tocomplywithbuildingregulations,PartLandPartJ(inScotland),roomandcylinderthermostatsmustbefitted.

9. Water Connections

Provisionsmustbemadeforthereplacementofwaterlostfromtheheatingsystem(sealedsystems).ReferenceshouldbemadetoBSEN14336forthemethodoffillingandmakeupofwater.Theremustbenodirectconnectionbetweentheboilerscentralheatingsystemandthemainwatersupply.Whenmainswaterisrequiredtofillthesystemdirectly,alllocalwaterbylawsmustbeobserved,andanyconnectionmademustbedisconnectedafteruse.

10. Flushing

Thesystemmust be flushedtowithin10%ofmainswaterPPMtoensurethatnodebrisistrappedinthesystemasthismayresultinboilerfailure.Whereexistingradiatorsandpipe-workareutilizedapowerflushmustbecarriedouttoremovedebris.Forfurtherguidancepleaseseesection14-Flushing&SystemProtection.

11. System Pressures

Allboilersarepressuretestedinthefactory.Thenormalworkingpressureoftheboilershouldbesettoapprox1.0/1.5bar.Allsealedsystemsshouldcomplywiththerelevantbuildingregulationsandstandards,includingBSEN13831-SpecificationforExpansionVessels.

! It is imperative that a pre-installed magnetic filter is removed and cleaned annually. Failure to carry out this action will increase contamination of the boiler by the system residue.

7GB-063C_f.706,7

Figure 1

1 - Flow Outlet Connection 2 - Run Dry Sensor 3 - Outlet Temperature Sensor 4 - Heat Exchanger 5 - Power Board 6 - Contactor 7 - WT3 Safety Thermal Cut-Out 8 - Inlet Temperature Sensor 9 - Control board 10 - Return Inlet Connection 11 - Pump & Control Cable Entry Points 12 - Main Power Entry Point 13 - Front Control Panel

1

2

3

6

5

7

8

9

10

11

12

13

4

! The boiler is fitted with a safety temperature cut-out that protects the boiler from failure. The safety temperature cut-out (Item 7) cuts the power to the boiler if the temperature reaches approx 100°C. if this occurs the boiler will shut off the main power to the unit. A service engineer will be required to re-set the boiler. However further investigation will be required to identify the cause of the fault.

BOILER INTERNAL LAYOUT

8GB-063C_f.706,7

12. System types

The“SlimJim”boilerrangecanbeusedinvarioussystemdesignsincludingunderfloorsystems.Therearetwoheatingschematicsonpage10Figure1&2thatillustrateanIndirectSystem(SPlan)&DirectSystem(HeatingOnly).

WerecommendtheuseofThermostaticRadiatorvalvesonallradiatorsexcludingthebypassradiator;thisradiatorshouldbefittedwithlockshieldvalvesandleftinthefullyopenposition.Inadditionwerecommendthatanautomaticbypassisusedinzonedsystemsandsettotherelevantflowratesrequiredforthesystemdesign.(Thebypassradiatorshouldbeaminimumsizeof600mmx600mmsingleconvectororequalto2500Btutobeinstalledwithintheheatingcircuitandlockedopen.Thiswillbelocatedinthesameareaastheroomthermostat).

! The system design should meet all current building regulations in force at the time of installation.

13. Hanging the Boiler

1 Takecarewhenremovingtheboilerfromitspackaging.Donotopenwithsharpobjectsasthismaydamagetheunit.

2 Hangtheboilerinaverticalpositionusingthetemplateandscrewsprovidedwithintheboilerpackaging.Takecaretoleavealltherecommendedclearancesasshownintheschematicdrawingbelow.

3 AClearanceofapprox400mmatthefrontoftheunitisrecommendedtoallowaccessforanyfuturemaintenancethatmayberequired.

INSTALLATION

M4x8

M4x8

C

DD

C

130

35

780

850

200

203

765

130

min.300

min.50

min.50

Front Cover Fixing Screws Boiler Dimensions & Fixing Positions

9GB-063C_f.706,7

Figure 2

aav

Expansion Vessel

Pump

Magnetic Filter

Gauge

PRV

Flow

Return

Filling Loop

Auto Bypass

aav

HW Cylinder

Zone valve

Zone valve

Pressure

aav

Expansion Vessel

Pump

Magnetic Filter

Gauge

PRV

Flow

Return

Filling Loop

Auto Bypass

Pressure

Figure 1

! The boilers may also be configured to run multi zone heating systems or under floor heating circuits if required.

10GB-063C_f.706,7

14. commissioning

IMPoRTanT: TURN ON THE ELECTRICAL POWER SUPPLY TO THE BOILER. MAKE SURE THAT THE PROGRAMMER IS NOT CALLING FOR HEAT AT THIS STAGE!

FIll InG ThE hoT WaTER cIRcuT. (If applicable)

1. Checkthepressureinthepotablevesselissetto3Bar.2. Checkthatallplumbingconnectionsaretight.3. Openthefurthestawaytapoutlet.

note: Make sure that the filling loop is closed at this stage!

5. Turnonthemainswatersupplytotheunit.6. Itwilltakeafewminutestofillthecylinder,oncethewatercomesthroughthetapoutletletitrun.7. Opentheotherhotwateroutletsandpurgeallairoutofthesystem.8. Oncefullypurgedclosealltheoutletsandfurthercheckforleaks.

FIllInG ThE PRIMaRY hEaTInG cIRcuT.

THE PRIMARY CIRCUT MUST BE FLUSHED IN ACCORDANCE TO BS 7593

1. Connecttheprimaryfillingloopandtighten.2.Makesurethatallprimaryconnectionsaretightbeforefilling.3. Openthefillingloopandallowthesystemtostartfilling.4. PresstherightarrowkeyontheboilercontrolpaneluntiltheA(bar)ledisilluminated.5. fillthesystemto2bar,thenstarttopurgetheradiatorsuntilalltheairisoutthesystem.6. Thiswillhavetoberepeatedseveraltimestofullypurgethesystemre-fillingasyougo.

System protection:Failure to protect the system will invalidate the manufacturer’s warranty.

1. Fillthesystemwithcoldmainswatertotherecommendedpressure1.5barandcheckforleaks,thendrainthesystemthoroughlymakingsurealldraincocksarefullyopenandthatthesystemiscompletelydrained.

2. AddFernoxF3cleanertothesystematthefurthestpointfromtheboiler,thisistoallowthesubstancetofullydilutethroughoutthesystem.Ifyouareunsureofthecorrectdoserate,contactFernoxon03301007750foradvice.

3. Re-fillthesystemandcirculatetheF3cleanerpriortotheboilerbeingfiredup.Commissionthesysteminthenormalway.Thecleansingagentmustbeinthesystemforaminimum1hourwiththesystemrun-ningatnormaloperatingtemperature.Alongerperiodoftimewouldbemorebeneficialtothecleansingprocessespeciallyifexcessfluxwasusedorisanoldsystem.F3cleanercanbeleftinthesystemforuptoamaximumofoneweekrunningonanormalheatingcycle.(WerecommendthatexistingsystemsarepowerflushedasperBS7593andPAS33regulations)

4. Drainandflushthesystemthoroughlytoremovethecleaningagentandanydebrisorcontaminants.Thisisacriticalpartofthecleaningprocessandmustbecarriedoutcorrectly.Usearinsetestmeter(TDS),suchastheFernoxCTM.Thereadingmustbewithin10%ofthemainsppmvalue.

5. AfterthesystemhasbeenthoroughlyflushedandTDSreadingsarewithin10%youcannowaddFernoxF1.Thiswillprotectagainsttheformationofscale,corrosionandmicrobiologicalgrowths.Itiscrucialhowever,thatfortheprotectortoworkcorrectly,thesystemmustbeproperlycleansedandflushed.

6. Nowattachthelabel includedwithintheFernoxF1packagingcompletedandattachedadjacenttotheboiler.

Werecommendinhibitorlevelsarecheckedonanannualbasis(usuallyduringtheservice)orsoonerifthesystemcontentislost.

ThisshouldbecarriedoutusingaFernoxinhibitorTestKit.FernoxTechnicalServiceHelplineon08708700362forfurtherassistance.

11GB-063C_f.706,7

SYSTEM PROTECTION - COMMISSIONING

Rated power[kW]

Pump lifting height [m]

LED 1 red

LED 2yellow

LED 3yellow

LED 4yellow

LED 5yellow

4 4 - 7 5

10 - 12 6 12 - 14 7

Alarm statusIf thepumphasdetectedoneormorealarms, thebicoloredLED1switchesfromgreentored.Whenanalarmisactive,theLEDsindicatethealarmtypeasdefinedinthetablebelow.Ifmultiplealarmsareactiveatthesametime,theLEDsonlyshowtheer-rorwiththehighestpriority.Thepriorityisdefinedbythesequenceofthetable.Whenthereisnoactivealarmanymore,theuserinterfaceswitchesbacktooperationmode.

Display Indication Pump operation

counter action

One red LED + one yellow LED (LED 5)

Rotor is blocked.

Trying to start again every 1,5 seconds

Wait or deblock the shaft.

One red LED + one yellow LED (LED 4)

Supply volt-age too low

Only warning pump runs

Control the sup-ply voltage

One red LED + one yellow LED (LED 3)

Electrical error

Pump is stopped because of low supply voltage or serious failure

Control the supply voltage /Exchange the pump

LED

1 2 3 4 5

LED

IF SUPPLIED WITH THE GRUNDFOS UPM3 PUMP 15. Start-up / Commissioning1. Ensurethesystemisfilledwithwaterandcorrectly

vented.2. Checkiftheappropriatesysteminstallationpres-

sureisreached(seethe“TECHNICALDATA”sec-tion)byreferringtothesystempressuregauge.

3. Settheexternalcontrolstocallforheat.4. Switchtheboileronbyturningthecontroldialto

therequiredtemperature.5. Checkthepumpissettothecorrectmode(see

table15.1).Todothis,pressthepumparrowbut-tonfornomorethan2seconds.TheLED’sshouldsignalanoperatingmodeattheplacepointedbyarrow.

6. If the LEDs are signalling a different operatingmode than recommended in table 15.1, set theappropriatemodeaccording to the following in-structions:pressthepumparrowbuttonforlongerthan2seconds,butlessthan10seconds(LED’swillstart toflash),thepumpthenswitchestotheprogrammingmode.LEDsglows to indicate thecurrent settings.To change the settings of thepumpinaccordancewithtable15.1,youcansettherightcombinationofglowingLEDsbypressingthepumparrowbutton.OncetheLEDcombina-tionissetcorrect,bynotpressingthebuttonfor10secondsthepumpwillrememberthissettingandwillexitfromtheprogrammingmodebacktoperformanceview.

Note: holding the pump arrow button for more than 10 seconds will enter the pump into key lock mode. This prevents the user from altering the pump settings. To remove the key lock and allow the pump settings to be changed, hold the pump arrow button again for more than 10 seconds.

7. Ensureadequateflowthroughtheboilerisreached(the‘H’indicatorisonwithaconstantlight).Thepumpshouldselfventafterashortperiodofrun-ning. If necessary assist the ventingprocess inthefollowingway;Warningthescrewheadinthecentreofthepumpisnotintendedtobeusedtoassistventingofthepump,Damagetothepumpinternalsmayoccur!

• closetheisolationvalveontheoutlet,• leaveboilerrunningfor15sec.• opentheisolationvalve.8. Settheexternalcontrolstotherequiredprogram

andtheboilertotherequiredsystemtemperature,seethe“Operating”section.

In the case of a seized pump impeller due to a long layover out of the heating season and simultane-ous non-compliance with the recommendation to cycle the pump every couple of days, please

restore proper movement of the impeller. To do this, please use PH2 screwdriver, press and turn the screw anti-clockwise, located in the middle of the front panel of the pump until the pump impeller is spinning freely.

Table15.1

Table15.2

12GB-063C_f.706,7

ELECTRICAL CONNECTIONS

! All wiring must be carried out in accordance with current IEE wiring regulations BS:7671 (all electrical connections must be made by a qualified tradesperson).

LOAD CHECKAloadcheckmustbetakenintoconsiderationwheninstallinghighpowerboilers.Thiswillbecarriedoutbya

qualifiedelectrician.Theremaybeanadditionalrequirementtoupgradetheincomingmainfusesupplyingthepropertyifotherhighpowerdevicesareusedwithintheproperty.E.gElectricShowers.IfanelectricshowerispresentwerecommendthataShowerSensorisinstalledwithinthesystem.Thiswillcauseaninterrupttotheboilerscontrolsignalwhentheshowerisinuse.Itwilldisabletheboilerprotectingtheelectricalsystemfromoverload.Allboilersmustbeprotectedatthemeterpositionwitha30mAdoublepoleRCDwithaminimumof3mm

contactseparationaccompaniedbyasuitablyratedMCB.Iftheboilerisnotfittedlocaltothemeterpositionthenanadditionalisolationswitchmustbefittedlocaltotheboilerforeachsupply.Ifthepropertyispronetolighteningstrikesorpowercutsitisrecommendedtoinstallasuitablesurgeprotec-

tiondevicetotheboilersupply.Thiswillreducetheriskofdamagetotheboilerelectronicsduringtheseevents.THIS APPLIANCE MUST BE EARTHED.Allpipe-workmustbeearthedinaccordancewiththeIEEBS7671WiringRegulations.Aftercompletionofallelectricalworks,anelectricalsafetycheckshouldbecarriedouti.e.shortcircuit,earth

continuity,resistancetoearthandpolaritycheck,andallrelevantTestCertificatescompleted.ELECTRICAL CONNECTIONSTheelectricalconnectionsareclearlymarkedinthebottomLHSideoftheunit.

L N(24hrLIVE)

The24hr live is thepermanentFeedconnection to theboiler fromthemainssupply.Externalcontrolswillrequireanindependentfusedspursuppliedfromtheconsumerunit,howeverthisfusedspurshouldbesuppliedbythesamepowersource&protectedbythesameRCDastheboileritself,thecontrolcircuitshouldbeprotectedbya6AmpMCB.TheBoiler&controlcircuitRCDshouldbeindepend-entofallotherdomesticcircuits.TheboilersupplycableshouldbecalculatedbythemeansofacablecalculationinaccordancewithBS7671byasuitablyqualifiedelectrician.

BOILER PROTECTIONTherecommendedprotectionisasfollows:

MODEL NO BOILER SIZE PROTECTIONEHCSJIM4KW-4kWOUTPUT BOILER20AMPProtectionEHCSJIM7KW-7kWOUTPUT BOILER40AMPProtectionEHCSJIM10KW-10kWOUTPUT BOILER50AMPProtectionEHCSJIM12KW-12kWOUTPUT BOILER63AMPProtectionEHCSJIM14.4KW-14.4kWOUTPUT BOILER80AMPProtection

EXTERNAL CONTROLSWerecommendtheuseoftheSingleChannelHeatPackforheatingonlyinstallations.ForHeatingandHot

waterinstallationswerecommendtheuseoftheTwinChannel’HeatPack’.The‘HeatPack’willincorporatealltherelevantpartstocomplywithcurrentbuildingregulationsi.eCirculation

Pump&MotorizedValvestocontroltheheatingandhotwatercircuitsandRoomandCylinderThermostatstocontroltheroomandhotwatertemperatures.Thiswillalsoprovideboilerinterlock.TheuseofTRV’salonewillnotprovideboilerinterlock.

! This control method is recommended by BEAMA (British Electrotechnical and Allied Manu-facturers Association) in order to comply with the current building regulations.

13GB-063C_f.706,7

Slim JimBoiler

General Electrical Network Connection

L N

Main Power Electrical Connection L N E

Figure 1

Figure 2

14GB-063C_f.706,7

Figure 3

2

7

1

3

8

9

12

11

10

5

MSK.72

ELECTRICAL CONNECTIONS

MSK.72 Control Board [1] - Pre-wired Control board supply [2] - Front panel control ribbon connection [3] - Flow temperature sensor [4] - Power Stage Selector + 240 volt control enable selector. [5] - Return Temperature Sensor [6] - Power Board Control Connection [7] - Water Level Sensor. The wire must be connected to one of two slots (both are the same). [8] - L N Contactor Connections [9] - Pump Fuse 1A 240V (slow blow) [10] - RP Volt Free Control Connections [11] - 240 Volt Control SW live & Neutral Connections [12] - Circulating Pump Connections N L E

15GB-063C_f.706,7

ELECTRICAL DIAGRAM

1 2

3 RIK

L1G

1N

L2G

2L3

G3

A1

11a

22a

33a

NPE

23

XP

K

NU

21

ZM

RP

Pum

pC

TRL

A2

A3

X

NL

Tout

LEV

EL*

T1

S

E1

UN

Pow

er

21

UV

W

12

3F1 4

U 1

5 6

7 8

A1 A2

118

T2Ti

n

XP - tape terminal block F1 - WT-3 thermal cut-out RIK - contactorA1 - EKCO.A1 power board A2 - MSK-72 BoardE1 -EKCO.A1 heang box

A3 - PW-12 indicator board T1- return temperature sensor T2- flow temperature sensor S - Water sensor sensor.K- front cover

16GB-063C_f.706,7

Volt Free Control Signals

1 POWER STAGE VOLT FREE

2 POWER STAGE VOLT FREE

3 POWER STAGE VOLT FREE

240 Volt Control Signals

1 POWER STAGE 240 VOLT

2 POWER STAGE 240 VOLT

3 POWER STAGE 240 VOLT

Dip Switch Settings

External Control Options:

TheSlimjimboilerscanbeusedwithVoltFreeor240voltcontrolsignals.Volt Free control operation.RemovethelinkfromtheRPConnection(10)andconnectyourexternalvolt

freecontrolcableshere.Whenthisconnectionis“Closed”theboilerwillfire,andwhen“Open”theboilerwillbeinstandby.(Thecontrolenabledipswitch4mustbeintheOFFpositionasshowninthetablebelow).

240 volt control operation.ThelinkmustbeleftintheRPConnections(10)andaliveSWandNeutralconnectedtothecontrolterminals(11)ToenablethefeatureyoumustselectDip4toON.ThisislocatedatthetopLHSofthecontrolBoard.(Thecontrolenabledipswitch4mustbeintheONpositionasshowninthetablebelow).

Boiler Output Control.YoucancontrolallSlimJimboilerspoweroutputsin3stagesbyselectingdipswitchessettingsasshown

inthetablebelow.e.g.Ifa6kWisusedanddipswitch1on= 2kW Output – 6kWboilerdipswitch1&2on= 4kW Output –

6kWboilerdipswitch1,2&3on= 6kW Output.

17GB-063C_f.706,7

EXTERNAL CONTROL WIRING

Figure 6

Figure 7

heating only Wiring (Non Standard Volt Free Switching)

This s plan wiring schematic will provide a volt free contact across the boilers RP connections. no voltage has been taken to the Grey cable of the zone valves therefore creating a volt free contact across the grey & orange switch wires of the valves when heating or hot water is in demand. If the boiler is connected to an existing heating control system with 240 Volt switching then the boilers control board should be setup as mentioned on page 15 (240 Volt control signals).

heating & hot Water Wiring: s Plan (Non Standard Volt Free Switching)

PROGRAMMERROOM

THERMOSTAT 2ROOM

THERMOSTAT 1DUAL CYLINDER

THERMOSTAT

11 12 13 14 1615

N LN L

3 43 5 7

HTG 1 CallHTG 1 CallHW Call HTG 2 Call

EC10002 - 2 ChannelEC10003 - 3 Channel COM Call

Volt freeControl

Connections

3A SwitchedFuse Isolator

6Amp240V50Hz

Supply N

NOTE! RP...are Volt free Contacts

COM CallCOM CallCOM

16 WayJunction Box

BLHC10008 HC10008 HC10008

HW Zone Valve HTG Zone Valve 1 HTG Zone Valve 2

BR GR OR BL BR GR OR BL BR GR OR

Product:EC10010Description:16Wayjunctionbox

--------------------Optional2ndheatingzone

230V~10A50HzClassII-15T55BS6220FIXEDWIRINGMAX1.5mm

PROGRAMMERROOM

THERMOSTAT 1

11 12 13 14 1615

N LN L

1

HTG 1 Call

3EC10001 - 1 ChannelCOM Call

Volt freeControl

Connections

3A SwitchedFuse Isolator

6Amp240V50Hz

Supply N

NOTE! RP...are Volt free Contacts

18GB-063C_f.706,7

BOILER CONTROL PANEL

OFF

030

40

1 3

5

2 4Front Control Panel LED introduction;

[1] - Power Indicator [2] - Boiler Operation Indicator [3] - Heat Call Indicator [4] - Low Water Indicator [5] - On/Off & Temperature Dial

User instructions, TheControlpanelislocatedontheoutsideboilercover.Itconsistsofadualpurposedialthatallowsyouto

selecttheboilerOutputTemperatureorSwitchtheBoilerOnorOff.Toswitchtheboiler“Off”YousimplyturnthedialAnticlockwisetothe“Offposition.”Indicator(1)willflashandtheboilerwillshutdownandstopheat-ingthesystem.Thepumpwillrunforafurther90secondsthenturnoff.Iftheboilerisleftintheoffpositionthecontrolsystemwillrunthepumpperiodicallytopreventsystemfailure.Toswitchtheboiler“On”simplyturnthedialClockwisetoyourdesiredtemperaturesettinggenerallyaround

65degC.Theboilerwillnowsitinstandbywaitingonacallfromtheexternalcontrolstoactivatetheboilerandheatthesystemwhenrequired.

LED Functions and Fault Finding

FUNCTIONS ON-OFFSTAND-BY

BOILERHEATING

CALL FOR HEAT

WARNINGINDICATOR

All LED’s OffCheckthatMainPowerisON?

Check–WT3OverHeatStat?IfWT3requiresre-setinginvestigatethecause!

off off off off

Boiler is ON WaitingforCallfromexternalcontrols. on off off off

Boiler is ON and running.ExternalControlsareCallingforheat on on on off

Low Water LevelTopupHeatingSystemWaterLevel. flashing off off on

Temperature Sensor Failure.The boiler will still heat if the inlet sensor

has failed but not the outlet sensor!Replace Both Sensors.

off flashing off on

Max Inlet Temperature reached.Nodemandfromsystem. on off flashing off

Boiler OffLEDwillflashfor90secondsuntilthepump

stops. flashing off off off

Figure 3

19GB-063C_f.706,7

EHCPartNumber: EHCSJIM 4KW

EHCSJIM 7KW

EHCSJIM 10KW

EHCSJIM 12KW

EHCSJIM 14.4KW

Boilerrange kW 4kW 7kW 10kW 12kW 14.4kW

Pipeentryboilers-flow top

Pipeentryboilers-return bottom

Centralheatingflow&returnpipes mm 22

Maxpressure bar 3

Min.pressure bar 0,5

Outflowwatertemperature °C 30÷80

Max.watertemperature °C 100

Overalldimensions(heightxwidthxdepth) mm 912x203x172

Weight kg 11

Waterconnection mm 22

Safetyclass IP22

Electricalsupply VAC 240V1ph50Hz

Loadcurrent A 16,7 29,2 41,7 50,0 60,0

Minimumpermittedcablediameter mm 6 10 16

Heatoutput(Btu/h) BTU/h 13648 23885 34121 40946 49135

Max.temperaturesetting °C 80

Min.temperaturesetting °C 30

Overheatprotection °C 100

Protection A 20 40 50 63 80

Themaximumallowednetworkimpedance Ω 0,43 0,37 0,29 0,24 0,22

ERPRating D D D D D

TECHNICAL SPECIFICATION

Electric heating company ltdUnit 40, Block 5

Third RoadBlantyre Industrial Estate

BlantyreGlasgowG72 0UP

Tel: 01698 820533 Fax: 01698 825697

www.electric-heatingcompany.co.ukwww.ehc-renewables.co.uk

(Waste Electrical & Electronic Equipment)

(applicable in the European union and other European countries with separate collection systems).

This marking shown on the product or its literature, indicates that it should not be disposed of with other household wastes at the end of its working life.To prevent possible harm to the environment or human health from uncontrolled waste dis-posal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling.Business users should contact their supplier and check the terms and conditions of the pur-chase contract. This product should not be mixed with other commercial wastes for disposal.