Instructions for Use - Glow-worm€¦ · The Flexicom hx range of boilers are designed to provide...

Instructions for UseCondensing Boilers/ Flexicom hx12hx G.C. No. 41-315-2815hx G.C. No. 41-315-2918hx G.C. No. 41-315-4224hx G.C. No. 41-315-6130hx G.C. No. 41-315-6738hx G.C. No. 41-315-68

READ CAREFULLY BEFORE USING

1 Readme.................................................................................................................. 31.1 Welcome........................................................................................... 31.2 GuaranteePack................................................................................ 31.3 Servicing........................................................................................... 31.4 Benchmark....................................................................................... 41.5 QuickReferenceGuide.................................................................... 4

2 Introducingyourappliance...................................................................................... 52.1 Appliancedescription....................................................................... 52.2 Accessories...................................................................................... 5

3 Productdocumentation........................................................................................... 53.1 Documentstorage............................................................................ 53.2 Explanationofsymbols..................................................................... 5

4 Safety...................................................................................................................... 64.1 Whattodoifyousmellgas............................................................. 64.2 Safetyrecommendations.................................................................. 64.3 Safetyregulations............................................................................. 6

5 GuaranteeResponsibility........................................................................................ 85.1 DetailedGuarantee.......................................................................... 85.2 ApplianceUse/Manufacturerresponsibility.................................... 8

6 Recycling................................................................................................................. 96.1 Appliance.......................................................................................... 96.2 Packaging......................................................................................... 9

7 Clearances.............................................................................................................. 9

HOW TO USE YOUR APPLIANCE

8 Overview............................................................................................................... 108.1 DisplayDescription......................................................................... 108.2 SwitchingOnandOff...................................................................... 108.3 Usercontrols...................................................................................11

ANY ASSISTANCE?

9 FaultFinding......................................................................................................... 129.1 Electricalcircuitinterruption............................................................ 129.2 Appliancefailstolight..................................................................... 12

10 Appliancesafetydevices....................................................................................... 1310.1 BoilerShutdown............................................................................. 1310.2 Protectingagainstfrost................................................................... 1310.3 CondensateDrainBlockage........................................................... 1310.4 SafetyDischargeValve.................................................................. 13

11 Appliancemaintenanceandservicing................................................................... 1411.1 Cleaning......................................................................................... 1411.2 Regularservicing.............................................................................1411.3 SealedWaterSystems.....................................................................1411.4 SpareParts.....................................................................................14

12 TipsforSavingEnergy.......................................................................................... 1513 Contactyourafter-salesorganisation................................................................... 15

table of contents

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1 Read me

1.1 Welcome

Theseinstructionsareanintegralpartoftheboilerandmust,tocomplywiththecurrentissueoftheGasSafety(InstallationandUse)Regulations,beleftwiththeuser.

EnsurethattheinstallerhasfullycompletedtheBenchmarkChecklistlocatedontheinsidebackpagesoftheinstallationinstructionssuppliedwiththeproductandthatyouhavesignedittosaythatyouhavereceivedafullandclearexplanationofitsoperation.TheinstallerislegallyrequiredtocompleteacommissioningchecklistasameansofcomplyingwiththeappropriateBuildingRegulations(EnglandandWales).

AllinstallationsmustbenotifiedtoLocalAreaBuildingControleitherdirectlyorthroughaCompetentPersonsScheme.ABuildingRegulationsComplianceCertificatewillthenbeissuedtothecustomerwhoshould,onreceipt,writetheNotificationNumberontheBenchmarkChecklist.

Readtheseinstructionsandfollowthemcarefullyforthesafeandeconomicaluseofyourboiler.

Do not forget to read the chapters “Safety” and “Guarantee” where you will find important information for your safety.

1.2 Guarantee Pack

Thepackcontainstheletterofintroductionandtheguarantee.Theextendedguaranteeissuppliedlooseandwerecommendthatyoushouldreadit.

Completeandreturnassoonaspossibleyourguaranteeregistrationcard.

IfyourguaranteeregistrationcardismissingyoucanobtainacopyorrecordyourregistrationbytelephoningtheGlow-wormCustomerServicenumber08000732142.

1.3 Servicing

Thisproductshouldbeservicedregularlytooptimiseitssafety,efficiencyandperformance.TheserviceengineershouldcompletetherelevantServiceRecordontheBenchmarkChecklistaftereachservice.TheBenchmarkChecklistmayberequiredintheeventofanywarrantyworkandassupportingdocumentationrelatingtohomeimprovementsintheoptionaldocumentssectionoftheHomeInformationPack.

Toensurethecontinuedefficientandsafeoperationoftheboileritisrecommendedthatitischeckedandservicedatregularintervals.Thefrequencyofservicingwilldependuponthesiteconditionsandusage,butingeneral,onceayearshouldbeenough.

Toobtainservice,callyourinstallerorGlow-worm’sownserviceorganisationusingthetelephonenumberontheinsidebackcoverofthisbooklet.

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1.4 Benchmark

Glow-wormisalicensedmemberoftheBenchmarkSchemewhichaimstoimprovethestandardsofinstallationandcommissioningofdomesticheatingandhotwatersystemsintheUKandtoencourageregularservicingtooptimisesafety,efficiencyandperformance.

1.5 Quick reference guide

WedesignedthisQuickreferenceguidesothatyoucanstartusingyourappliancerightaway.

ThisQuickreferenceguideassumesthattheappliancehasbeeninstalledandcommissionedbyacompetentperson.

BenchmarkismanagedandpromotedbytheHeatingandHotwaterIndustryCouncil.

• Formoreinformationvisitwww.centralheating.co.uk

MODE

MODE

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2 Introducing your appliance

2.1 Appliance description

TheFlexicomhxrangeofboilersaredesignedtoprovidecentralheatingfromafullypumpedopenventedorsealedwatersystemwithanindirectcylinder.

Oncethecontrolsareset,theboileroperatesautomatically.

IntelligentcontrolsareavailableasaccessoriesfromGlow-worm.

ContactyourInstallerorGlow-wormsalesforfurtherinformation.

TheFlexicomhxboilerisanappliancethatusescondensingtechnology,whichrecoversheatfromthefluegases,thisoperatingprinciple,consumeslessenergyandcontributestothereductionofyourhouseholdCO2emissions.

Thisapplianceisaroom-sealedtypeequippedwithafluesystemforairsupplyandtheremovalofcombustionproducts.Thisfluesystemoffersthepossibilitytoinstalltheapplianceinanyroomwithouttheneedforadditionalventilation.

Installationandcommissioningoftheapplianceshouldonlybecarriedoutbyacompetentperson.Theyareresponsiblefortheinstallationandthecommissioninginaccordancewithstandardsinforce.

Youshouldalsoconsultacompetentpersonformaintenanceandrepairoftheapplianceaswellasforanyadjustmentnecessary.

2.2 Accessories

TheFlexicomhxiscompatiblewithmostmakesof230Vprogrammableroomthermostats.

ForincreasedsystemcompatibilityandincreasedenergysavingwithintelligentcontrolGlow-wormofferarangeofcontrolsdedicatedtoworkusingauniquecommunicationsystem-eBus(lowvoltage).

Forfurtherdetailscontactyourinstaller.

3 Product documentation

3.1 Document storage

• Makesurethatthismanualisstoredclosetoyourapplianceforfuturereference.Shouldyoumovehomeensurethatthismanualishandedovertothenewhomeowners.

• Readtheseinstructionsandfollowthemcarefullyforthesafeandefficientuseofyourappliance.

Noresponsibilityorliabilitycanbeacceptedfordamagescausedbyfailuretofollowtheinstructionsinthismanual.

3.2 Explanation of symbols

DANGER: Risk of injuries.

ATTENTION: Risk of damage to the appliance or to its surroundings.

IMPORTANT INFORMATION

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4 Safety

4.1 What to do if you smell gas?

- isolateyourgassupplyatthegasemergencycontrolvalve.

- Eliminateallsourcesofignition,i.e.smoking,blowlamps,hotairgunsetc.

- donotoperateelectricallightsorswitches,eitheronoroff.Openalldoorsandwindows,ventilatethearea.

- openimmediatelywindowsanddoorsinordertoventilatetheproperty.

- donotsearchforgasleakswithanakedflame.

- callyourgassupplier’semergencyphonenumber.

- alertotherbuildingoccupants.

4.2 Safety recommendations

Youmustcomplywiththefollowingrecommendationsandsafetyinstructions:

• Neverperformanymaintenanceorrepairoftheapplianceyourself.Onlycompetentpersonsareallowedtoworkontheappliance.

• Nevertamperwithsafetydevices.

• Donotattempttomodifytheapplianceoritsimmediatesurroundingsasthismayaffectonthesafeuseoftheappliance.

• Undernocircumstancesmusttheuserinterferewithoradjustsealedparts.

• Donotallowchildrentooperatetheappliance.

• Donotobstructthefluesystem

Certainhomeimprovementsmayadverselyaffecttheoperationofyourappliance–youshouldconsultyourinstallerforadvicebeforecarryingoutanywork.

• Donotexposetheappliancetohighhumidity.

• Donotuseorstoreexplosiveorinflammablematerials(e.g.petrol,aerosols,solvents,chlorinebaseddetergents,paint,glueetc.)inthesameroom,compartmentorcupboardastheappliance.Undercertainconditions,thesesubstancescanprovetobecorrosive.

• Donottouchtheheatedsurfacesoftheappliance,suchasoutletduct,hydraulicconnections,alsoaftertheapplianceoperationbecause,foracertaintime,thesesurfacesmaybecomehot.Anycontactwiththemcancauseburns.

Thisappliancecontainsmetalparts(components)andcareshouldbetakenwhenhandlingandcleaning,withparticularregardtoedges.

• Inthecaseofanywaterleak,immediatelyturnoffthecoldwatersupplytotheapplianceandhavetheleakrepairedbyyourcompetentperson.

• Donotstoreorplacearticlesontheappliance.

4.3 Safety regulations

Servicing/maintenanceshouldbecarriedoutbyacompetent personapprovedatthetimebytheHealthandSafetyExecutive,inaccordancewiththerulesinforceinthecountriesofdestination.

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IfthisboilerisinstalledinarentedpropertyintheUKthereisadutyofcareimposedontheownerofthepropertybythecurrentissueoftheGasSafety(InstallationandUse)Regulations,Section35.

Gas Safety (Installation and Use) Regulations

Inyourowninterestsandthatofsafety,itistheLawthatALLgasapplianceshavebeeninstalledbyacompetentpersonapprovedatthetimebytheHealthandSafetyExecutive,inaccordancewiththecurrentissueoftheseregulations.

Gas Category

ThisboilerisforuseonlyonG20naturalgas.

Electrical Connection

TheboilerMUSTbeearthed.

TheboilerMUSTbeconnectedtoapermanent230Vac,50Hzsupply,fusedat3A.

Connectionofthewholeelectricalsystemoftheboiler,includinganyheatingcontrols,totheelectricalsupplymustbethroughonecommonisolator.

Thecoloursofthreecoreflexiblecableare,blue-neutral,brown-live,greenandyellow-earth.

Testing and Certification

ThisboileriscertificatedtothecurrentissueofEN483forperformanceandsafety.

Itisimportantthatnoalterationismadetotheboilerunlessapproved,inwriting,byGlow-worm.

AnyalterationnotapprovedbyGlow-worm,couldinvalidatethecertification,boilerwarrantyandmayalsoinfringethecurrentissueofthestatutoryrequirements.

CE Mark

Thisboilermeets therequirementsofStatutoryInstrument,No.3083oftheBoiler(EfficiencyRegulations,andthereforeisdeemedtomeettherequirementsofDirective92/42/EEContheefficiencyrequirementsfornewhotwaterboilersfirewithliquidorgaseousfuels.

TypetestforpurposesofRegulation5certifiedby:Notifiedbody0087.

Product/productioncertifiedby:Notifiedbody0086.

TheCEmarkonthisapplianceshowscompliancewith:

-Directive2009/142/EContheapproximationofthelawsoftheMemberStatesrelatingtoappliancesburninggaseousfuels.

-Directive73/23/EEContheharmonisationoftheLawsoftheMemberStatesrelatingtoelectricalequipmentdesignedforusewithincertainvoltagelimits

-Directive89/336/EEContheapproximationoftheLawsoftheMemberStatesrelatingtoelectromagneticcompatibility.

The CE mark shows that this appliance has been designed according to the safety techniques and rules in force. The compliance of this appliance with the relevant standards has been certified.

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5 Guarantee / Responsibility

5.1 Detailed guarantee

ThankyouforinstallinganewGlow-wormapplianceinyourhome.

Glow-wormappliancesaremanufacturedtotheveryhigheststandardsowearepleasedtoofferourcustomersaComprehensiveGuarantee.

Thisproductisguaranteedfor24monthsfromthedateofinstallationor30monthsfromthedateofmanufacture,whicheveristheshorter,forpartsandlabour.

Thesecondyearofthepartsguarantee,fromthebeginningofthe13thmonthonwardsafterinstallationormanufacture,isconditionalupontheboilerhavingbeenservicedbyacompetentpersonapprovedatthetimebytheHealthandSafetyExecutive,inaccordancewiththemanufacturer’srecommendations.Westronglyrecommendregularservicingofyourgasappliance,butwheretheconditionisnotmet,anychargeablesparepartsorcomponentsissuedwithintheapplicableguaranteeperiodstillbenefitfroma12monthwarrantyfromthedateofissuebythemanufacturer.

5.2 Appliance use / manufacturer responsibility

Servicing/maintenanceshouldbecarriedoutbyacompetentperson approvedatthetimebytheHealthandSafetyExecutive,inaccordancewiththerulesinforceinthecountriesofdestination.

Theguaranteeisapplicableontheconditionthat:

- Theapplianceisinstalledbyacompetentpersoninaccordancewithinstallationinstructions.

- Theapplianceisusedfornormaldomesticpurposesandinaccordancewiththemanufacturer’soperatingandmaintenanceinstructions.

- Theapplianceisserviced,maintained,byacompetentperson.

- Therepairorreplacementofpartsduringtheguaranteeperioddoesnothavetheeffectofextendingtheperiod.

Themanufacturerhasnoresponsibilitywhatsoeverforanydamageresultingfrom:

- Anydefectsordamageresultingfromincorrectorpoorinstallation,inadequateservicing,ormaladjustmentofthegasorwaterused.

- Anydefectsinthesystemtowhichtheapplianceisconnected.

- Anydefectscausedbyinadequatefrostprotection.

- Anydeteriorationormaladjustmentfollowingchangesinthenatureorpressureofthegasorthewaterused,orachangeinthecharacteristicsoftheelectricalsupplyvoltage.

• Forfurtherdetails,refertoyourTermsandConditions.

This appliance is intended to be installed only within the designated countries displayed on the type plate.

• Itistheresponsibilityofparents,guardiansandcarers,thattheapplianceisprotectedawayfrompersonsundertheircare.

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6 Recycling

ThisappliancecontainsmanyrecyclablepartsandshouldbedisposedofaccordingtothecurrentWEEEregulations.Thepackagingshouldalsobedisposedofaccordingtothecurrentregulations.

6.1 Appliance

TheappliancemustberecycledincompliancewiththeWEEE(WasteElectricalandElectricalEquipment)directivewhich,inparticular,requires:

- selectivecollectionofwasteelectricalandelectronicequipment,

- thesystematicselectiveprocessingofcertaincomponentsandsubstancesdeemeddangerous,

- reuse,recyclingandenergyrecoveryofcollectedWEEE’s.

This symbol indicates that this appliance must not be disposed of with household waste, that it should be selectively collected for energy recovery, reuse or recycling.

• Taketheappliancetoanappropriatecollectionpointforprocessing,energyrecoveryandrecyclingofwasteElectronicandElectricalEquipment.

By complying with this directive, you will contribute to the preservation of natural resources and the protection of human health.

6.2 Packaging

Thecompetentpersonwhoinstalledtheappliancemust:

- sortthewastesoastoseparatethosewhichcanberecycled(cardboard,plastics...)fromthosethatcannot.

- disposeofthewasteincompliancewithregulationsinforce.

7 Clearances

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8 Overview

8.1 Display Description

TheUserControlpanelconsistsofthreepushbuttons,aresetbuttonanddisplay,whichwillindicatewithsymbolsthestatusoftheboiler.

8.2 Switching On and Off

Switching on

- Checkthatthegasserviceisolatingvalveontheapplianceisopen.

- Theappliancehaselectricalpowerandthereisnodemandfromanyexternalcontrols.

MODE

MODE

Do not operate the boiler without water.

(shown open)

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selectedoperationandcontrols,displaythetemperaturesettings.

Switching off CH mode

• Pressthe"-"selectorbuttontoturnOFFtheCentralHeating.

Alltheappliancefunctionswillbeswitchedoff,exceptfrostprotection.

Switching off

- Switchofftheelectricalsupply.

- Theapplianceandthedisplaywillshutdown.

If you intend to leave your property empty for a prolonged period, refer to the Appliance Safety Devices section.

8.3 User Controls

If you are in any doubt about the boiler being filled with water contact your installer or Glow-worm's own service organisation using the telephone number shown in the chapter " Contact your after-sales organisation".

• Press"MODE"buttonandholdfor2secondstoenterCentralHeatingfunction.

• Centralheatingfunctionisindicatedbyaflashing .

• After5secondsofinactivitythedisplaywillresettoindicatethewatertemperature.

• ToselecttheCentralHeatingtemperature(38-82oC)pressthe"+or-"selectorbuttons.

• Theboilerwilloperateautomatically.

• NOTE:ThedisplaywillindicatetheHeatingsystemwatertemperatureorafaultcode(seesectionFaultFinding).

• Thecontrolpanelwillflashanddisplayallitsdigits.Itwillthenreturntothedefaultdisplayanddependingonthe

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ANY ASSISTANCE ?

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ANY ASSISTANCE?

9 Fault Finding

Inthissectionfaultcodesthataredisplayed,whichCANbecarriedoutbytheUSERtorestoreapplianceoperation(Correctiveaction:...).OtherfaultcodesMUSTbesolvedbyacompetentpersononly.

Like all condensing boilers it will produce a plume of condensation from the flue terminal in cool weather. This is due to the high efficiency and hence low flue gas temperature of the boiler. It is normal and not a fault indication.

Ifanyfaultpersists,andyourappliancestilldoes not work, leave it switched off andcontactyourcompetentperson.

9.1 Electrical Supply Failure

Theboilerwillnotworkwithoutanelectricalsupplyandnormaloperationoftheboilershouldresumewhentheelectricalsupplyisrestored.Iftheboilerdoesnotresumenormaloperation,checktheexternalcontrols.Itmaybenecessarytorestartyourappliance.

• Torestarttheboiler,presstheresetbutton,seechapter"Howtouseyourappliance►Overview".

9.2 Appliance fails to light

TheLCDwilldisplayaflashing'F'andcodenumber,


CODE DESCRIPTION POSSIBLECAUSES

F1 Boilerhasattemptedtolight5timesandfailedonalloccassions

Presstheresetbutton.Ifthefaultpersists,contactyourInstallation/ServicingcompanyorGlow-worm

F5 Overheat Boilerhasoverheated-allowtocoolthenpressresetbutton

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ANY ASSISTANCE ?

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10 Appliance safety devices

10.1 Boiler Shutdown

Theboilersoftwareisdesignedtorecognisethepotentialforanoverheatlockoutandwillshutdownbeforethishappens.


Iftheboilerfailstoresumenormaloperationandallexternalcontrolsarecallingforheat,thencallyourInstallation/ServicingcompanyorGlow-wormservice.

10.2 Protecting against frost

Appliance Protecion

Incaseoftheriskoffrost:

• Makesurethattheelectricalandgassupplytotheapplianceisturnedon.

• Foranabsenceofseveraldays,youcanleavetheappliancetorunnormally.

Theappliancehasabuiltinfrostprotectiondevicethatprotectstheboilerfromfreezing.WiththegasandelectricsuppliesONandirrespectiveofanyroomthermostatsetting,thefrostprotectiondevicewilloperatethepumpwhenthetemperatureoftheboilerwaterfallsbelow8OC.Atimerisusedsothatthetemperaturecanbecheckedperiodically.After10minutesthepumpwillbestoppedifthetemperatureishigherthan10OCorhasalreadyreached35OC.Theburnerwillactivateiftheboilertemperaturedoesnotreach10OCafter30minutesoratanytimeifthetemperaturedropsto5OC.Theburnerwillswitchoffwhenthetemperaturereaches35OC.Theappliancealwayshasfrostprotectionactivewhenthepowerandgassupplyareon.

System Protection

Theboileralonecannotensurethattheinstallationisprotectedagainstfrost.NOTE:Anyotherexposedareasofthesystemshouldbeprotectedbyaseparatefrostthermostat.

Incaseofprolongedabsence,wherepowertothedwellingandtheboilerisswitchedoff,contactyourInstallation/ServicingcompanyorGlow-wormServicetohavetheinstallationdrainedortohavetheheatingcircuitprotectedbyaddingananti-freezespeciallydesignedforheatingsystems.

CAUTION: Your domestic water circuit (hot and cold) is not protected by the boiler.

10.3 Condensate Drain Blockage

Asasafetyfeaturetheboilerwillstopworkingifthecondensatedrainbecomesblocked.Duringfreezingconditionsthismaybeduetotheformingoficeinthecondensedrainexternaltothehouse.

• Releaseaniceblockagebytheuseofwarmclothsonthepipe.

Theboilershouldthenrestart.

• ContactyourInstallation/ServicingcompanyorGlow-wormserviceifthefaultpersists.

10.4 Safety Discharge Valve

Thesafetydischargevalveanddischargepipeisfittedtotheboiler.

• Ifthereisanydischargefromthepipe,switchofftheboilerelectricalsupply,thencallyourInstallation/ServicingcompanyorGlow-wormservice.

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ANY ASSISTANCE ?

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11 Appliance maintenance and servicing

11.1 Cleaning

Before cleaning turn the appliance off.

Theappliancecasingcanbecleanedusingamildliquiddetergentwithadampcloth,thenadryclothtopolish.

Do not use any form of abrasive or solvent cleaner as you may damage the paintwork.

11.2 Regular servicing

Regularservicingoftheapplianceisimportanttotheprolonged,safeandefficientuseofyourappliance.

Incorrect or inadequate servicing can severely affect the safety of the appliance and can lead to injury.

Werecommendthatyourapplianceisservicedeveryyear.

• Onlyuseacompetentperson.

TheserviceengineershouldcompletetherelevantServiceRecordontheBenchmarkChecklistaftereachservice.TheBenchmarkChecklistmayberequiredintheeventofanywarrantyworkandassupportingdocumentationrelatingtohomeimprovementsintheoptionaldocumentssectionoftheHomeInformationPack.

Toobtainservice,callyourinstallerorGlow-worm’sownserviceorganisationusingthetelephonenumberontheinsidefrontcoverofthisbooklet.

11.3 Sealed Water Systems

Thedraining,refillingandpressurisingMUSTbecarriedoutbyacompetent personapprovedatthetimebytheHealthandSafetyExecutive.

• ContactGlow-worm’sownserviceorganisationusingthetelephonenumberbelow.

Tel:01773828100

11.4 Spare Parts

Inordertoguaranteethesafeandprolongedlifeoftheproduct,insistthatonlythemanufacturer’sgenuinesparepartsareused.

• DonotusereconditionedorcopypartsthathavenotbeenclearlyauthorisedbyGlow-worm.

• IfreplacementpartsarerequiredcontactGlow-worm’sownserviceorganisationforadviceusingthetelephonenumberbelow.

Tel:01773828100

orforapprovedstockist,visitwww.glow-worm.co.uk.

Quotethenameandmodeloftheboiler.

Thenameandmodelbadgeisonthefrontcase.

• IfindoubtseekadvicefromthelocalgascompanyorGlow-worm’sownserviceorganisationusingthetelephonenumberbelow.

Tel:01773828100

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ANY ASSISTANCE ?

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12 Tips for saving energy

Yourinstallerwillbeabletogiveenergysavingadviceaboutyoursystemanditscontrols.

ForenergysavingadviceyoucancontacttheEnergySavingsTrustforadviceorvisitwww.energysavingtrust.org.ukwhooffersimpleeffectiveadviceaboutsavingenergy.

Regularservicingofyourboilerwillhelpmaintainitsefficiency-servicingonceayearisrecommended

Turnyourthermostatdown.Reducingyourroomtemperatureby1°Ccouldcutyourheatingbillsbyupto10percent.Setyourheatingandhotwateratthetimecontrollertocomeononlywhenrequiredratherthanallthetime.

13 Contact your after-sales organisation

Customer service call

Tel:01773828100

Technical helpline

Tel:01773828300

0020127400

Glow-worm

Nottingham Road, Belper, Derbyshire. DE56 1JT

Because of our constant endeavour for improvement, details may vary slightly from those shown in these instructions.

www.glow-worm.co.uk

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Instructions for Use - Glow-worm€¦ · The Flexicom hx range of boilers are designed to provide...

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