Glowworm SS 150 User manual

UnventedHotWaterCylinders/
Hydracyl
150
205
250
300
Instructionsforuse
Installation
andServicing

- 3 -


1 Instructionsguidance................................................................................................................... 5
1.1 Productdocumentation.......................................................................................5
1.2 Associateddocuments........................................................................................5
1.3 Storageofdocuments.........................................................................................5
1.4 Explanationofsymbols.......................................................................................5
1.5 Benchmark.........................................................................................................5
2 Safetyinstructionsandregulations............................................................................................... 5
2.1 Intendeduse......................................................................................................5
2.2 Generalsafetyinformation..................................................................................6
2.3 Cylindersafetyinformation..................................................................................6
2.4 Cylinderidenticationplate.................................................................................6
2.5 Regulationandstatutoryrequirements.................................................................6
2.6 RegulationsforGreatBritian................................................................................7
2.7 Generalrequirements..........................................................................................7
3 Introducingyourappliance........................................................................................................... 8
3.1 Appliancedescription.........................................................................................8

4 Operation.................................................................................................................................... 9
4.1 Adjustingthehotwatertemperature....................................................................9
4.2 Switchingohotwater......................................................................................10
4.3 Frostprotection................................................................................................10
4.4 Cleaningthecylinder........................................................................................10
4.5 Temporarilytakingthecylinderoutofservice.....................................................10
4.6 Energysavingtips.............................................................................................10
4.7 Faultnding.....................................................................................................11
5 InspectionandMaintenance....................................................................................................... 11

6 Technicaldata............................................................................................................................ 12

7 Hydraulicandelectricalschematics............................................................................................. 13
8 Descriptionofthecomponents................................................................................................... 19
8.1 Cylinderunitdescription...................................................................................19
8.2 FunctionalelementsofHydracylDHWcylinder....................................................19
9 Assembly................................................................................................................................... 23
9.1 Packcontents...................................................................................................23
9.2 Cylindertransportation.....................................................................................23
9.3 Installationsite.................................................................................................23
9.4 Installationofdischargepipe.............................................................................24

- 4 -

10 Cylinderinstallation................................................................................................................... 25
10.1 Installingpipesforreheatingcircuit...................................................................25
10.2 Installinghotwaterpipes..................................................................................25
10.3 Installationofcoldwaterpipe............................................................................26
10.4 Electricalinstallation.........................................................................................27
10.5 Electricalconnectionofcontrolcomponents.......................................................27
11 Commissioning......................................................................................................................... 28
11.1 Fillingthecylinder............................................................................................28
11.2 Fillingoutthecylindercommissioningchecklist..................................................29
11.3 Handovertotheoperator...................................................................................29

12 Inspectionandmaintenance....................................................................................................... 29
12.1 Maintenancechecklist.......................................................................................30
12.2 Drainingthecylinder.........................................................................................30
13 Faultnding.............................................................................................................................. 30
13.1 Takingthecylinderoutofservice.......................................................................32
14 Recyclinganddisposal............................................................................................................... 32
14.1 Cylinderdisposal..............................................................................................32
14.2 Disposalofpackaging.......................................................................................32
15 Customerserviceandmanufacturer'swarranty............................................................................ 32
15.1 Glow-wormservice............................................................................................32
15.2 Glow-wormwarranty.........................................................................................32
16 Spareparts................................................................................................................................ 33

0020115468_03-12/11-Glow-worm
- 5 -
INTRODUCTION

 
 
Theinstructionsareanintegralpartoftheapplianceandmustbe
handedtotheuseroncompletionoftheinstallationinorderto
complywiththecurrentregulation.
• Carefullyreadthemanual,tounderstandalltheinformation
toenablesafeinstallation,useandservicing.Noliabilitycan
beacceptedintheeventofdamagefornotcomplyingwiththe
guidanceinthisinstructionmanual.
 
Wheninstallingthecylinder,youmustpayattentiontothe
installationinstructionsforpartsandcomponentsofthesystem.
Theseinstallationinstructionsareenclosedwiththevarious
systempartsandsupplementarycomponents.Youmustalso
observealloperatinginstructionsincludedwiththesystem
components.
 
Passthisinstallationmanualandallotherapplicabledocuments
and,ifnecessary,anyrequiredaidstothesystemoperator.
Thesystemoperatorwillberesponsibleforstoringthemsothat
theinstructionsandaidsareavailablewhenrequired.
 
aDANGER: Risk of injuries.
eDANGER: Risk of electric shock.
ATTENTION: Risk of damage to the appliance or to its
vicinity.
IMPORTANT: Useful information.
 
Benchmarkplacesresponsibilitiesonbothmanufacturersand
installers.Thepurposeistoensurethatcustomersareprovided
withthecorrectequipmentfortheirneeds,thatitisinstalled,
commissionedandservicedinaccordancewiththemanufactu-
rer’sinstructionsbycompetentpersonsandthatitmeetsthe
requirementsoftheappropriateBuildingRegulations.TheBench-
markChecklistmustbeusedtodemonstratecompliancewith
BuildingRegulationsandmustbeprovidedtothecustomerfor
futurereference.
Installersarerequiredtocarryoutinstallation,commissioning
andservicingworkinaccordancewiththeBenchmarkCodeof
PracticewhichisavailablefromtheHeatingandHotwaterIndus-
tryCouncilwhomanageandpromotetheScheme.
• Visitwww.centralheating.co.ukformoreinformation.
 
 
Glow-wormcylindersareconstructedusingstate-of-the-art
technologyinaccordancewithrecognisedsafetyregulations.
Nevertheless,thereisstillariskofinjuryordeathtotheuseror
othersorofdamagetotheunitandotherpropertyintheeventof
improperuseoruseforwhichtheunitisnotintended.
Glow-wormcylindersarenotintendedforusebypersonswho
haveinadequateexperienceand/orknowledge,unlesstheyare
supervisedbyapersonresponsiblefortheirsafetyorhavebeen
giveninstructionsbythispersonregardingtheoperationofthe
unit.Childrenmustbesupervisedtoensurethattheydonotplay
withtheunit.
Glow-wormHydracyldomestichotwatercylindersareunvented,
indirectlyheateddomestichotwatercylindersdesignedforuse
withgas-redboilersasperGBstandardsforhotwatersupply
systems.Thecylindersworkwiththepressureofthewatersupply
lineanddonotneedacoldwatertankfortheirsupply.
Theyareusedonlytosupplypotablewaterheatedupto80°C.
Theymayonlybeusedforthispurpose.Thecylinderscanbe
usedincombinationwithadownstreamgas-redboilerforhot
watergenerationinaccordancewithGBstandards.
Anyotheruseorextendeduseisconsideredtobeimproper.
Improperuseofanykindisprohibited.
Themanufacturer/supplierisnotliableforanydamageresulting
fromimproperuse.Theuseralonebearstherisk.Intendeduse
alsoincludesobservingtheoperatingandinstallationmanuals
andallotherapplicabledocuments,aswellascomplyingwiththe
inspectionandservicingconditions.
Attheendofthismanualthereisacommissioningreportwhich
youmustllinandhandovertotheoperator.Allinstallers
shouldhaveacurrentIDcardandregistrationnumber.The
cylindermustbeinstalledbyacompetentpersonapprovedat
thetimebytheHealthandsafetyExecutivetotheprevailing
standards,installationbookandbuildingregulationsatthetime
ofinstallation.

0020115468_03-12/11-Glow-worm
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INTRODUCTION
 
Installationandadjustmentaswellasservice,maintenance
andrepairmustbecarriedoutbyacompetentpersonapproved
atthetimebytheHealthandSafetyExecutiveandbein
accordancewiththerelevantrequirementsoftheLocalAuthority,
BuildingRegulations,BuildingRegulations(Scotland),Building
Regulations(NorthernIreland),andthebye-lawsofthelocal
WaterUndertaking.
Allelectricalwiringmustbecarriedoutbyacompetentelectrician
andbeinaccordancewiththecurrentI.E.E.WiringRegulations.
 
Thisproducthasbeenassessedandfoundtocomplywiththe
requirementsoftheBuildingRegulationsforunventedhotwater
storagesystemsandmustnotbealteredormodiedinanyway.
Intheeventofpartsreplacement,useonlygenuinespareparts
suppliedbyGlow-worm.
TheinstallationissubjecttoBuildingRegulationapproval.
NotifytheLocalAuthorityofintentiontoinstall.
As stipulated in the manual "Handling Operations
Regulations 1992", the weight of the unit exceeds that
which should be lifted by one person.
Withoutpotentialequalisation,life-threateningvoltagefrom
theelectricimmersionheatercanreachthepipingandwater
taps.Earththeelectricimmersionheater.Ifthesolarcylinderis
connectedwithpipesmadeofnon-metallicmaterialsandisnot
earthed,corrosiondamagecanoccur.
Earththesolarcylinderforpotentialequalisationandtoprotect
againstovervoltage.
Ifusingnon-metallicpipesonthewaterroute,makesurethat
theyaredesignedbythemanufacturerforcontinuousoperation
at70°Candoperationbythehourattemperaturesofupto95°C
Alwaysuseasuitableopen-endspannertotightenorundo
threadedconnections.Donotusepipewrenches,extensions,
etc.IfthewaterdoesnotmeettherequirementsoftheUKwater
qualitystandardswithamaximumchloridelevelof250mg/l,
corrosiondamagemayoccurtothecylinder.
Onlyusethecylindertoheatpotablewater.
 
Ifyouuseanelectricimmersionheaterinthecylinder,the
externalvoltagemaybuildupelectricalpotentialinthewater
whichcanresultintheelectrochemicalcorrosionoftheelectric
immersionheater.Makesurethatboththehotwaterandcold
waterpipesareconnectedtotheearthlinebymeansofearth
cabledirectlyonthecylinder.Youmustalsomakesurethatthe
electricimmersionheaterisconnectedtotheearthlineviathe
earthingterminal.
 
Youshouldnotturnthegas-redboilerocompletelysothat
youcanstilluseallofthesafetyfunctionsforyourheating
installation.Ifyouwanttotaketheunitoutofoperationfora
relativelylongperiodoftimeinanunheatedroomatriskfrom
frost,youmustcompletelydraintheHydracyl.
 
Ifthereareleaksinthepipenetwork,closeothecoldwaterstop
valveonthesafetyassemblyandnotifyanengineerqualiedto
workonunventedsystemstorectifytheleaks.
 
Forscaldprotection,installahotwaterthermostatmixerinthe
system.
Shouldexcessivelyhotwaterreachyourhottapscontactyour
installerimmediately.
 

Changestothesupplylines,reliefvalvetermination,and
expansionreliefvalvemayonlybecarriedoutbyanengineer
qualiedtoworkonunventedsystems.
Never shut o the expansion relief valve or relief valve
termination.
Never bypass any of the security devices.
 
Theidenticationplateisattachedtothemiddleofthecylinder
atthefactory.
 
 

DirectiveoftheEuropeanParliamentandCouncilfrom29thMay,
1997fortheapproximationofthelawsonpressureequipmentof
theMemberStates

Watersupply-specicationforindirectlyheatedunvented
(closed)domestichotwatercylinders

Specicationsforinstallationsinsidebuildingsconveyingwater
forhumanconsumption-Part1:General

Protectionagainstpollutionofpotablewaterinstallationsand
generalrequirementsofdevicestopreventpollutionbybackow

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INTRODUCTION

Safetyofhouseholdandsimilarelectricalappliances;Part1:
Generalprinciples(IEC60335-1:2001,modied)

Safetyofhouseholdandsimilarelectricalappliances;Part2:
Particularrequirementsforstoragewaterheaters(domestichot
watercylindersandhotwaterboilers)(IEC335-2-21:1989and
supplements1;1990and2;1990,modied)

Safetyofhouseholdandsimilarelectricalappliances;Part2:
Particularrequirementsforxedimmersionheaters(IEC335-2-
73:1994,modied)

Degreesofprotectionprovidedbyenclosures(IPcode)-(IEC
60529:1989+A1:1999)

Degreesofprotectionprovidedbyenclosures(IPcode)-(IEC
60529:1989+A1:1999)

AutomaticElectricalControlsforHouseholdandSimilarUse-Part
1:Generalrequirements(IEC60730-1:1999,modied)

AutomaticElectricalControlsforHouseholdandSimilarUse-Part
2-9:Particularrequirementsfortemperaturesensingcontrols(IEC
60730-2-9:2000,modied)

Directive2004/108/ECoftheEuropeanParliamentandCouncil
of15thDecember2004ontheapproximationofthelawsofthe
MemberStatesrelatingtoelectromagneticcompatibilityand
repealingDirective89/336/EEC

Directive2006/95/ECoftheEuropeanParliamentandCouncilof
12thDecember2006ontheharmonisationofthelawsofMember
Statesrelatingtoelectricalequipmentdesignedforusewithin
certainvoltagelimits


Protectionofstructuresagainstlightning–Part1:General
principles(IEC1024-1:1990;modied)BS6651:Codeof
practiceforprotectionofstructuresagainstlightning.
 
 
Thisappliancemustonlybeinstalledandcommissionedbya
suitablycompetentperson.Pleasecheckwithyourinstallerthat
heisabletocarry-outallthenecessaryworksincludingocial
noticationoftheworkstotherelevantbodyuponcompletion.
Observeallnationalregulations,including:WorkingatHeights
Regulations2005,HealthandSafetyatWorkAct1974,Electricity
atWorkRegulations1989,IEEWiringRegulationsBS7671,
Lightningprotectionrequirements,Equipotentialbondingof
electricalinstallations.
 
 
Thisappliancemustonlybeinstalledandcommissionedbyan
engineerqualiedtoworkonunventedsystems.Pleasecheck
withyourinstallerthatheisabletocarry-outallthenecessary
worksincludingocialnoticationoftheworkstotherelevant
bodyuponcompletion.
 
Theinstallationoftheapplianceandanyassociatedhotwater
systemmustbeinaccordancewith(butnotlimitedto)the
following;COSHHregulations,GasSafety(Installationand
Use)Regulations1998,HealthandSafetyDocumentNo.635
(TheElectricityatWorkRegulations1989),BS7671(IEEWiring
Regulations)andtheWaterSupply(WaterFitting)Regulations
1999,orTheWaterBylaws2000(Scotland).Itshouldalsobein
accordancewiththerelevantrequirementsoftheLocalAuthority,
BuildingRegulations,TheBuildingRegulations(Scotland),
TheBuildingRegulations(NorthernIreland)andtherelevant
recommendationsofthefollowingBritishStandards:
Servicessupplyingwaterfordomesticusewithin
buildingsandtheircurtilages.
Specicationforinstallationofgasredboilersnot
exceeding60kWinput.
Specicationforinstallationoflowpressuregas
pipeworkupto28mm(R1)indomesticpremises(2ndfamily
gas).
Treatmentofwaterindomestichotwatercentral
heatingsystems.InstituteofGasEngineersPublicationIGE/
UP/7/1998:”Guideforgasinstallationsintimberframed
housing”
Pt.1Domesticbutaneandpropanegasburning
installations.
Soundnesstestingandpurgingofindustrialand
commercialgasinstallation.
Gasinstallationpipework,boostersandcompressorson
industrialandcommercialpremises.
Installationofgasappliancesinindustrialand
commercialpremises.
Installationofgasredhotwaterboilersofratedinputs
between60kWand2MW(2ndand3rdfamilygases).
Forcedcirculationhotwatercentralheatingsystemsfor
domesticpremises.Note:onlyupto45kW.
Lowtemperaturehotwaterheatingsystemsofoutput
greaterthan45kW.
Part1Fundamentalanddesignconsiderations.
Part2Selectionofequipment.

0020115468_03-12/11-Glow-worm
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INTRODUCTION
Part3Installation,commissioningandmaintenance.
Specicationfor:Expansionvesselsusinganinternal
diaphragm,forsealedhotwaterheatingsystems.
Installationandmaintenanceofuesandventilationfor
gasappliancesofratedinputnotexceeding70kWnet(1st,2nd
and3rdfamilygases).
Part1Specicationforinstallationofues.
Part2Specicationforinstallationandmaintenanceof
ventilationforgasappliances.
 
CElabellingshowsthattheapplianceaccordingtothemodel
overviewcomplywiththebasicrequirementsoftheapplicable
directives.TheCEdeclarationsofconformitycanbeviewedatthe
manufacturer'spremisesandcanbesuppliedifnecessary.
 
 
TheGlow-wormHydracyldomestichotwatercylinderisavailable
infoursizes:150,205,250,and300litres.Thecylindersare
madefromstainlesssteelwithEPSinsulation.
Theunventeddomestichotwatercylinderworkswiththe
pressureofthewatersupplylineanddoesnotneedacoldwater
tankforitssupply.Toenablethecylindertoworkaswellas
possible,acoldwatersupplywithanappropriatepressureand
owrateisrequired.
 
Thecylinderisdeliveredwithallsafetyandcontroldevicesforthe
operationoftheunventeddomestichotwatersupply:
-Temperature/pressurereliefvalve(90°C,7bar)
-Pressurelimitingvalve(3.5bar)withlinestrainer
-Expansionreliefvalve(one-wayvalve,6.0bar)
-Safetythermostatforelectricimmersionheater(85°C)
-Reheatingcircuitsafetythermostat(80°C)
 
Youcansetthehotwatertemperatureandreheatingtimeson
thecontroller.Oneofthefollowingcontrollersmaybeused
dependingonthedesignofyoursystem:Glow-wormdual-
channeleBUScontrollerCylinderthermostatinconjunctionwith
atimer.Refertotheoperatingmanualfortheinstalledcontroller
ortimer.

Thecylinderisequippedwithanadditionalelectricimmersion
heaterwithaheatingoutputof3kW.Theelectricimmersion
heaterisdesignedforuseinunventedcylindersandhasa
thermostatwithatemperaturecontrollerandasafetythermostat
(TCO)witharesetbutton.
 
2
1
3




ThefollowingarepremountedatthefactoryfortheHydracyl
domestichotwatercylinder:
-Cylinderthermostat(3)andreheatingcircuitsafetythermostat
(2).
-Electricimmersionheater(1)withsafetythermostatand
cylinderthermostat.

0020115468_03-12/11-Glow-worm
- 9 -
READCAREFULLYBEFOREUSING
 
aRisk of scalding and bursts due to inappropriate
alterations!
There is a risk of escaping steam, bursting, and
damage to the system if you make any changes to
the cylinder, control system, supply lines for water
and power (if present), relief valve termination, or
expansion relief valve for the cylinder water.
Do not make any improper changes.
aRisk of scalding!
The output temperature of the draw-o points can
reach 85 °C if the mixing valve is set incorrectly.
- Do not adjust the mixing valve.
- If the output temperature at a draw-o point is too
high or low, Contact an engineer qualied to work on
unvented systems to adjust the temperature.
Risk of damage from leaks!
Leaks on the water pipes between the cylinder and
tap can result in water damage.
- If a leak occurs, close the cold water stop valve on
the cylinder.
- Contact an engineer qualied to work on unvented
systems, to eliminate the leak.
Thecoldwaterstopvalveislocatedinthepipeconnectionof
yourdomesticwaterconnectionforthecylinder(coldwater
connection)whichshouldhavebeenttedbyyourinstallerinan
accessiblepositionclosetothecylinder.
 
Thehotwatertemperatureissettotherequiredvaluebythe
engineerqualiedtoworkonunventedsystemsduringthe
cylinderstart-upprocess.
Ifanexternalcontrollerisinstalledforhotwatertemperature
control,youcanadjustthehotwatertemperatureandreheating
timesusingthiscontroller.
Forinformationonmakingsettings,seetheoperatingmanualfor
thecontroller.
 
1


Ifnocontrollerforhotwatertemperaturecontrolisinstalled,
youcansettherequiredhotwatertemperatureonthecylinder
thermostat(1).Youcansetthereheatingtimesontheinstalled
timer.Refertotheoperatingmanualforthetimer.
• Setthedesiredcylinderhotwatertemperatureonthecylinder
thermostat(1).
• Foroptimumeciency,chooseasettingof45°C.
• Usetheoperatingmanualforthegas-redboilertomakesure
thattheunitisreadyforoperation.
We recommend the cylinder is set to 60 °C
periodically, to provide protection against the
proliferation of harmful bacteria.
If you are heating up water for the rst time or after a
long switch-o period, the full cylinder performance is
only available following a waiting period.
If the Hydracyl is installed in a cupboard, make sure
that clothing and other objects are not placed on
the cylinder, control devices, pipes, or other system
components.
Always make sure that there is clear access to the
cylinder to enable the use of the hot water thermostat
controller and the thermostat mixer.

0020115468_03-12/11-Glow-worm
- 10 -
READCAREFULLYBEFOREUSING
 
1
2
3



Theelectricimmersionheater(2)shouldonlyheatthewaterifthe
gas-redboilerfails.Theelectricimmersionheatermaynotbe
operatedatthesametimeasthegas-redboiler.
• Ifthegas-redboilerfails,switchtheelectricimmersionon
usingtheswitch(1).
• Oncethegas-redboilerisinserviceagain,usetheswitchto
switchtheelectricimmersionheatero.
 
• Switchotheimmersionheaterandthegas-redboiler(see
theoperatingmanualforthegas-redboiler)totemporarily
switchotheheatingandhotwatersystem.
 
Risk of damage due to frost!
If the cylinder is placed out of operation for a
relatively long period of time in an unheated room
(e.g. during a winter holiday), the cylinder must be
completely drained.
- Contact an engineer qualied to work on unvented
systems to drain the cylinder.
Ifyouareabsentduringarelativelylongperiodwhenthereisa
riskoffrost,makesurethatyouleavethecentralheatingonand
thatthetemperatureinthecylinderroomandinallotherrooms
arekeptabovefreezing.
 
• Cleantheoutsideofthecylinderonlywithadampcloth,using
soapywaterifitisespeciallydirty.
Donotuseabrasivecleaningagentsorsolvents(anytypeof
scouringagent,petroleumetc.)sincetheycandamagethe
claddingandthecylinderxtures.
 
Risk of damage as a result of the cylinder freezing!
Frost protection and monitoring devices are only
active while the boiler is connected up to the power
supply.
- Make sure that the cylinder cannot be damaged if
there is a frost.
• Temporarilytakethecylinderoutofservicebyswitchingthe
boilero.
 

Thewarmwatershouldonlybeheateduptotheextentthatis
necessaryforuse.Anyfurtherheatingresultsinunnecessary
powerconsumptionandhotwatertemperaturesofmorethan
60°Calsoleadtoincreasedlimescaleproduction.

Circulationpumpsdoindeedincreaseconveniencewhenit
comestohotwatergeneration.However,theyrequirepower.
Moreover,circulatinghotwaterwhichisnotusedcoolsdownasit
movesthroughthepipesandmustthenbereheated.Therefore,
circulationpumpsaretobeoperatedonlywhenhotwateris
actuallyneededforthehousehold.Individualtimerprogramscan
bedenedusingautotimerswhicharealreadyinstalledorcan
beretrottedinmostcirculationpumps.Weathercompensators
oftenhaveancillaryfunctionsforcontrollingcirculationpump
timings.Contactanengineerqualiedtoworkonunvented
systems.

0020115468_03-12/11-Glow-worm
- 11 -
READCAREFULLYBEFOREUSING
 
 
Fluidisdrippingfromthesystem? Ifpossible,collecttheuidinabucketandcontactanengineerqualiedto
workonunventedsystems.
Thecontrollerissuesamessagetellingmethesensorisfaultyor
thereisacablebreak?
Contactanengineerqualiedtoworkonunventedsystems.
Thecylinderisnotprovidingsucienthotwater? Checkthatthehotwatertemperatureissetcorrectlyonthecontroller
(recommendedvalueofapprox.45°C,however,setperiodicallyto60°Cto
provideprotectionagainsttheproliferationofharmfulbacteria)and
thatthegas-redboilerisworking.Ifthesettingsare
correct,thecylindermaybecalcied.Then:contactanengineerqualiedto
workonunventedsystems.
Asafetythermostattrips? Contactanengineerqualiedtoworkonunventedsystems.
Waterescapesfromtheexpansionreliefvalve? Contactanengineerqualiedtoworkonunventedsystems.
 
Anannualinspection/maintenancerunbyanengineerqualied
toworkonunventedsystemsisaprerequisiteforensuringthat
thecylinderispermanentlyreadyforoperation,reliable,andhas
alongservicelife.
Itisimportantthatyourhotwatercylinderisservicedannually.
Werecommendenteringintoamaintenanceagreement.
Afterservicing,theservicingengineermustcompletetherelevant
ServiceIntervalRecordsectionoftheBenchmarkChecklist
locatedontheinsidebackpagesofthisdocument.
eRisk of death from electric shock.
Improperly executed work on the cylinder can result in
a risk to life and limb.
- Never try to rectify cylinder malfunctions yourself.
- Contact an engineer qualied to work on unvented
systems to rectify all malfunctions.
aRisk of injury resulting from improper maintenance or
repair.
Failure to arrange for the system to be maintained
and repaired and improper maintenance and repair
can impair the operational safety of the unit, leading
to injuries and damage to property
- Never attempt to perform maintenance work or
repairs on the cylinder yourself.
- Always employ an engineer qualied to work on
unvented systems.

0020115468_03-12/11-Glow-worm
- 12 -
TECHNICALDATA

 
Unit Hydracyl150 Hydracyl205 Hydracyl250 Hydracyl300
Totalcapacity l 150 205 250 300
Actualcapacity l 149.1 211.2 250.3 299.1
Hotwatercapacity l 136.7 203.9 247.5 270.5
Maximumsupplypressuretopressurereducingvalve bar 12
Maximumoperatingpressureofcylinder bar 7
Maximumoperatingpressureofheatingcoil bar 3.5
Operatingpressure bar 3.5
Pressurelimitingvalve bar 3.5
Expansionreliefvalve bar 6.0
Temperatureandpressurereliefvalve oC/bar 90/7.0
Chargepressureofhotwaterexpansionvessel bar 4.0
Maximumtemperatureofheatingcircuit oC 85
Maximumtemperatureofpotablehotwater oC 85
Standingheatloss kW/24h 1.61 1.98 2.17 2.37
HeatinguptimeaccordingtoEN12897 mins 24 30 37 42
Recoverytime(70%capacity) mins 19 21 26 31
Primaryheatexchangerperformance kW 18.0 21.4 21.0 20.0
Flowrateforprimaryheatexchangerperformance l/min 23.3 23.3 23.3 23.3
Primaryheatexchangerpressuredrop mbar 97 116 116 115
Primaryheatexchangervolume l 2.94 3.56 3.56 3.56
Primaryheatexchangersurfacearea m2 0.62 0.75 0.75 0.75

Height mm 1191 1593 1843 2153
Heightwithhotwaterdrawo mm 1223 1625 1875 2185
Topplemeasure mm 1308 1680 1918 2217
Diameter mm 554.5
Depth mm 624
Netweight kg 29 36 41 46
Weight(full) kg 177.8 248 291 345

Coldwaterinlet 22mmunproledpipe(compressionjoints)
Hotwaterdrawo 22mmunproledpipe(compressionjoints)
Balancedpressurecoldwateroutlet 22mmunproledpipe(compressionjoints)
Secondaryreturn 15mmunproledpipe(compressionjoints)
Primaryheaterow 22mmunproledpipe(compressionjoints)
Primaryheaterreturn 22mmunproledpipe(compressionjoints)
Primaryheatingcircuitimmersionsleevesize mm 8

Immersionheater(accordingtoBSEN60335) 2.7kW,230V,50Hz
Lengthofelectricimmersionheater inch 14
Twoportmotorisedvalve 230/240V,50Hz
Cylinderthermostat 230/240V,50Hz

Cylinderbodymaterial StainlessSteel(1.4521)
Cylinderjacketmaterial Polypropylene
Insulationmaterial EPSwithinfaredabsorber
Insulationthickness mm 50
Corrosionprotection Stainlesssteel
Blowingagentforinsulationmaterial Pentane(GWP<5)
ODP 0

0020115468_03-12/11-Glow-worm
- 13 -
INSTALLATION

 
C 2 C 2 1
N L 3
34 5 6 7 8 9 10
N
CH HW
L
1 C
7
10
N L
230V
3A
3A
230V
16A
Load
R
Bl Gr Or R R
Bl Gr Or Bl Gr Or
R
R
N
230V
16A
C
D
7
8
7
1
23
3
5
5
2.2
2.2
2.1
2.1
10
10
9
9
6
6
4
4
A
B
1

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 


0020115468_03-12/11-Glow-worm
- 14 -
INSTALLATION
C 2 C 2 1
N L 3
34 5 6 7 8 9 10
2.2
Load
N L
230V R
3A
Bl WhOr Gr
1 C 2
78
4
N
HW
On
HW
Off
L
230V
16A
N
CH
3
5
230V
16A
7
8
7
1
2
9
9
6
6
4
4
A
C
B
D
1
2.1
3
5
2.1
2.2

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

0020115468_03-12/11-Glow-worm
- 15 -
INSTALLATION
230V~ CH
On
DHW
On
CYL. DHW
On
Off
BUS
+
–
NTC
+
–
230V
16A
16A
3A
N L N L
BUS
N L
BUS
EBUS
EBUS
230V
16A
C
D
7
1
1
2
9
8
5
6
6
A
B
98 10
5
10
2.1
3
4
3
4
2.1

 
 
 
 

 
 
 
 
 
 
 

 
 
 
 

0020115468_03-12/11-Glow-worm
- 16 -
INSTALLATION
BUS
230V
16A
230V~ CH
On
DHW
On
CYL. DHW
On
O
BUS
+
–
NTC
+
–
16A
3A
N L N L
N L
BUS
EBUS
230V
16A
C
D
7
1
1
11
2
9
8
5
6
A
B
98
5
10
2.1
10
3
4
3
4
2.1

 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 

0020115468_03-12/11-Glow-worm
- 17 -
INSTALLATION
N L
BUS
16A
3A
230V
16A
EBUS
230V
16A
1
14
13
9
5
6
12
12
6
14
10
11
11
10
8
3
3
4
7
A
C
D
B
2
1
4
8.2
8.2
7

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

0020115468_03-12/11-Glow-worm
- 18 -
INSTALLATION
C 2 C 2 1
N L
BUS
16A
3A
230V
16A
4
8.1
7
1
L L
C
EBUS
230V
16A
1
13
12
9
5
6
10
10
6
13
11
11
8
3
3
4
7
8.2
8.2
8.1
A
B
2
1
C
D

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

0020115468_03-12/11-Glow-worm
- 19 -
INSTALLATION
 
 
Section4.1ofthismanualdescribestheHydracylsolarcylinder
indetail.
 
15
1
12
13
14
11
18
3
17
20
16
2 3
4
5
67
9
8
10
19

 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 

0020115468_03-12/11-Glow-worm
- 20 -
INSTALLATION
TheHydracyldomestichotwatercylinderisavailableinfour
sizes:150,205,250,and300litres.Thecontainersaremade
fromstainlesssteelwithEPSinsulation.
Thecylinderissuppliedalongwithallrequiredcoldandhotwater
controldevicesanda2-waymotorisedvalve.
Thecylinderworkswiththepressureofthewatersupplylineand
doesnotneedacoldwatertankforitssupply.
Thecylinderhashotandcoldwaterconnectionswithadiameter
of22mm.Toenablethecylindertoworkaswellaspossible,a
coldwatersupplywithanappropriatelyhighpressureandow
rateisrequired.

• Singlebathroomproperty:Hydracyl150litre
• Singlebathroompropertywithanen-suiteshowerroom:
Hydracyl150litre
• Twobathroomproperty:Hydracyl150or205litre
• Twobathroompropertywithanen-suiteshowerroom:
Hydracyl205litre
• Largerproperties:Hydracyl250or300litre
 
Thecylinderisdeliveredwithallsafetyandcontroldevicesforthe
operationoftheunventeddomestichotwatersupplysystem:
-Temperature/pressurereliefvalve(90°C,7bar)
-Pressurelimitingvalve(3.5bar)withlinestrainer
-Expansionreliefvalve(one-wayvalve,6.0bar)
-Safetythermostatforelectricimmersionheater(setto85°C)
-Reheatingcircuitsafetythermostat,setto80°C,tobe
connectedtothe2-waymotorisedvalveinordertoisolate
theprimaryheatsourceifacylinderthermostatmalfunction
occurs.
 
45
2
1
3
6

 
 
 
 
 
 
Thefollowingarepremountedatthefactoryfortheunvented
Hydracyldomestichotwatercylinder:
-Cylinderthermostat(5)andreheatingcircuitsafetythermostat
(4)
-Electricimmersionheater(6)withsafetythermostatand
cylinderthermostat
ThecylindermustbeproperlywiredinordertocomplywithG3
buildingregulations.