Heatrae Sadia Multipoint Instantaneous User manual

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Fitting Instructions
Multipoint Instantaneous
®
®

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COMPONENT CHECKLIST
Before commencing installation check that all the following
components have been supplied with your Multipoint Instantaneous
water heater.
 • Heater
 • Fixingscrewsandwallplugs
 • Expansionreliefvalve1MPa(10bar)
 • Teepiece
 • Fittinginstructions
INTRODUCTION
Thank you for purchasing a Heatrae Multipoint Instantaneous. The
unvented pressure system water heater is manufactured to the
highest standards and has been designed to meet all the latest
relevantsafetyspecications.
Please read and understand these instructions before starting work.
Please leave these instructions with the user following installation.
This Heatrae Multipoint Instantaneous water heater must be installed
(Sections1-4)andcommissioned(Section5)byacompetentperson.
Please read and understand these instructions prior to installing your
Heatrae Multipoint Instantaneous. Particular attention should be paid
tothesectionheadedimportantinstallationpoints(Section1)
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 play with the appliance.

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TECHNICAL SPECIFICATIONS
Model numbers
7.0kW-95050424
9.0kW-95050425
12.0kW-95050426
Connections
Inlet/Outletconnection-1/2”BSPmale
Waterentrypoint-bottom
Cableentrypoint-bottomorrear
Electrical rating
6.4-7.0kW230-240V
8.2-9.0kW230-240V
11.0-12.0kW230-240V
Rated pressure
7kW / 9kW / 12kW
Minimumsupplypressure 0.1Mpa(1bar)
Maximumsupplypressure 0.7Mpa(7.0bar)
Enclosure rated
IPX5
Materials
Backplate,cover-ABS
Element(s)-coppersheathedrodtype
Innercontainer-glassreinforcednylon
Dimensions
Height-210mm
Width-160mm
Depth-104mm
STANDARDS AND APPROVALS
ComplieswiththerequirementofEN60335-2-35.
 BritishElectrotechnicalApprovalsBoard(BEAB)approved.
 ComplieswithEuropeanCommunityDirectives(CE).
Complies with UK water regulations, kiwa approved.

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red
red
NL
black
green/yellow
Terminal
block
Pressure
switches
Inner
container
red
red
red
red
Figure 1 - Wiring Diagram
7kW / 9kW / 12kW
Neon
FIXING HOLES (3 NOS.)
TEMPERATURE
LIMITER 1
(ONE SHOT
OVER TEMP
CUT-OUT)
CABLE GRIP
DRAIN PLUG
DIFFERENTIAL PRESSURE
SWITCH ASSEMBLY
MAINS CONNECTOR BLOCK
WATER CONTAINER
ASSEMBLY
TEMPERATURE LIMITER 2
(OVER TEMP CUT-OUT)
Figure 2
7kW / 9kW / 12kW
NEON

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1.0IMPORTANTINSTALLATION
POINTS
1.1 Products manufactured by Heatrae Sadia are to British and
European Standards.These appliances are safe and without
risk, provided they are installed, used and maintained in good
working order in accordance with our instructions and
recommendations.
1.2 Please read and understand these instructions before starting
work and retain them for later use.
1.3 DO NOT operate the appliance if it is frozen, or suspected of
 beingfrozen.SeeFaultFindingtable(section7.0)
1.4  Theseheatersareoftheclosedoutlettype(unventedpressure
 system)andaresuitableforconnectiontonormalcoldwater
 mainssuppliesuptoamaximumof0.7MPa(7.0bar)for7/9
  and12kW.
1.5 DONOToperatetheapplianceif:
 1.Waterceasestoowduringuse.
 2.Waterhasenteredinsidetheunitbecauseofanincorrectly
 ttedcover.
3. If the appliance is damaged.
 (inallcasesturnoffmainspowerandisolatewatersupply)
1.6 ISOLATEtheelectricalandwatersuppliesbeforeremovingthe
cover.
1.7 ISOLATE the electrical and water supplies BEFORE proceeding
with installation or servicing.
1.8 The product is NOT SUITABLE for mounting into steam rooms or
steam cubicles.
1.9 Theinstallationmustbecarriedoutinaccordancewiththe
 relevantrequirementsof:
 •TheappropriateBuildingRegulationseitherTheBuilding
 Regulations,TheBuildingRegulations(Scotland)orBuilding
 Regulations(NorthernIreland).
 •TheWaterFittingsRegulationsorWaterByelawsinScotland.
 •TheIEEWiringRegulations-BS7671.
CAUTION
1.10Itisrecommendedthatpersonswhomayhavedifculty
understanding or operating the controls should not be left
unattended whilst using the appliance. Special
consideration should be given to young children and persons
with reduced physical, sensory, or mental capabilities.
1.11 Only use designated entry points for cable and pipe.

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PLUMBING
1.12TheplumbinginstallationmustcomplywithWaterRegulations.
1.13Thesupplypipemustbeushedtocleardebris.
1.14DONOTsolderpipesorttingswithin300mmoftheheateronce
the pipe work is located in the appliance, as heat transfer can
damage components.
1.15Allplumbingconnectionsmustbecompletedandcheckedfor
leaks before making the electrical connections.
ELECTRICAL
1.16Beforettingtheappliance,ensurethattheconsumerunitand
any switches are suitable for the additional load. If in doubt,
 contactyourelectricitysupplieroraqualiedelectrician.
1.17TheinstallationmustcomplywiththelatestBS7671
 ‘Requirements’forElectricalInstallations’(IEEWiring 
 Regulations).
1.18 This appliance must be earthed.
1.19Aresidualcurrentdevice(rcd),formerlyknownasanearth
 leakagecircuitbreaker(elcb),withatrippingcurrentof30mA
must be incorporated in the circuit.
2.0INSTALLATION-WATERSUPPLY
WATER REQUIREMENTS
2.1 All7kW,9kWand12kWheatershaveanoperationalpressure
 rangeof0.1Mpa(1bar)to0.7Mpa(7.0bar).Bothinletandoutlet
 connectionsaresuitablefor15mmdiametercopperpipe.
2.2 Theteepieceandexpansionreliefvalvemustbesituatedwhere
 shown(seegure3.itemD)andthereliefvalvedischargeport
 plumbedviaanairbreak(tundish)toasafe,visibleplacewhere
there is no risk to persons.
2.3 The discharge pipe must fall continuously from the valve outlets
and be unobstructed.
2.4 AnisolatingstopvalveMUSTbeincorporatedtothemainwater
 supplytocomplywithWaterRegulations
2.5 Toobtainoptimumperformanceaowrestrictor(isolatingball
 valve)mustbettedwhereshown(seegure3,itemB).This
provides temperature control during commissioning
 (see5.3SETTINGFLOWRATE).

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3.0INSTALLATION-ELECTRICAL
REQUIREMENTS
ELECTRICAL REQUIREMENTS
3.1 This appliance must be earthed.
3.2 The installation, supply cable and circuit protection must conform
 tothelatestBS7671‘Requirementsforelectricalinstallations’
 (IEEWiringRegulations).
3.3 The Multipoint Instantaneous heater must only be connected to a
 230/240Vacsupply.
3.4 Beforemakinganyelectricalconnectionswithintheinstallation,
 makesurethatnoterminalislive.Ifindoubt,SWITCHOFFthe
 wholeinstallationattheconsumerunitorswitchfuse(where
 tted).
3.5 TheMultipointInstantaneousheatermustbeconnectedtoits
own independent electrical circuit.
3.6 Checkthatyourconsumerunit(mainfusebox):
 1.hasamainswitchratingof80Aorabove.
2. has a spare fuse way which will take the fuse/mcb you need
 tot-(seeFigure.4).Ifso,youcanwiretheMultipoint 
Instantaneous direct to the spare fuse of your consumer unit via
 asuitablyratedisolatingswitch-(seeFigure.4).Notethatnot
 allconsumerunitswillaccepta35/40/45Asizedfuse.
A - OUTLET VALVE
B - FLOW RESTRICTOR
C - MULTIPOINT INSTANTANEOUS
D - EXPANSION RELIEF VALVE
E - SERVICES STOP VALVE
A
B
C
D
E
Figure 3

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3.7 Ifpoint3.6,1and2arenotachievable,theinstallationisnot
straight forward, since it could involve installing a new
consumer unit to serve the whole house or just the Multipoint
 Instantaneous.YouwillneedtocallinyourRegionalElectricity
Company to check the circuit and make the connections to
the meter or service connector block. They should also check the
earth bonding of items in the vicinity.
3.8 Aresidual current device (rcd),formerlyknownasanearth
 leakagecircuitbreaker(elcb),withatrippingcurrentof30mA
must be incorporated in the circuit.
3.9 A double-pole isolating switch(ratedat30Afor7kW,40Afor
 9kW,and50Afor12kW),withacontactseparationofatleast
3mm in each pole, must be incorporated in the circuit. This must
have a mechanical indicator showing when the contacts are
 open.Anindicatorlampaloneisnotsufcient.Onlycord 
 operatedswitchescanbettedinbathrooms.  
Make cut-out
using sharp knife
Figure 5 - Rear cable entry
Figure 4
Multipoint Instantaneous unit
(use rear entry when it is
possible)
80A or 100A main switch
Meter
Meter ‘tails’
Consumer unit
RCD (can be part of the
consumer unit)
Double pole isolating switch:
pull cord or wall mounted in accordance
with IEE regulations

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4.0INSTALLATION-MOUNTING
PREPARATION
4.1 Removethexingscrewwhichholdsthefrontcoverontothe
back plate of the Multipoint Instantaneous heater. Carefully
remove the cover.
4.2 Theunitmustbemountedonaatsurface,whichcoversthefull
width and length of the back plate. It is important that the wall
 surfaceisatotherwisedifcultymaybeencounteredwhen
 ttingthecover.
4.3 DONOTttheMultipointInstantaneoustothewallandtileupto
 thecase.Itmustbettedontoanishedatandevenwall
surface. This allows removal for servicing.
CABLE ENTRY
4.4 Cableentrycanbefromtherear(seeFigure5)orfrom 
 thebottom.Whenoptingforbottomentrymakecut-outtosuit
 cablebeforettingbackplatetothewall.
4.5 FixtheMultipointInstantaneousheaterlooselytothewall.The
 wallplugsprovidedaresuitableformostbrickwalls(usea6.5mm
 diametermasonrydrill),butifyourwallisplasterboardorsoft
building block, you should use special wallplugs and an
appropriate drill, obtainable from most hardware stores.
PLUMBING
4.6 Decidewheretoconnecttothewatermainsforyourfeedtothe
Multipoint Instantaneous. Ensure that the pipe you have selected
is not a gas pipe, a hot water pipe, or from a cold water storage
tank.
4.7 Cutthenecessarypipeworktolength,offeruptotheinstallation
before making any soldered joints. Ensure that the pipe is the
 correctlength,asshorteningitcanbedifcultoncejointshave
been made.
4.8 AnisolatingstopvalveMUSTbeincorporatedtothemainwater
 supplytocomplywithWaterRegulations
4.9 Assembletheinstallationbeforemakinganysolderedjoints.
 DONOTusejointingcompoundsonanypipettingsforthe
installation.
4.10Removetheunitbeforesolderingtheconnections.
4.11Itisessentialtoushthepipeinordertocleardebris,particlesof
solder and swarf.
4.12Turnthewateroffafterushingusingtheisolatingstopvalve.
4.13ConnectthecoldwatersupplypipetotheinletoftheMultipoint
 Instantaneous,thisisa1/2”BSPconnection.
4.14Fittopandbottomscrewsandsecurethebackplatetothewall
ensuring that it is level.

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4.15ConnectallothercomponentsasperFigure3.
4.16Turntheisolatingstopvalveonslowlyandcheckforleaksinall
pipe work, rectify as necessary.
4.17Turnofftheisolatingstopvalve.
4.18Placethecoverontothebackplate.
4.19Securethecovertobackplateusingscrewprovided.
5.0COMMISSIONING
5.1 Onceinstalled,theheaterwilloperateautomaticallywhenthe
outlet valve is opened. The valve must be opened fully to obtain
 thesetow/temperature.Reducedowattheoutletwillresultin
hotter water being delivered.
5.2 Onclosingtheoutletvalvetheheatingelementwillautomatically
shut down provided this tap has been fully turned off by the user.
SETTING FLOW RATE
5.3 Tosettheowrate,makesurethewaterandpowerareturned
 off.Opentheoutletvalvefully(seegure3)andclosetheow
 restrictor.Openthestopvalveandopentheowrestrictor
 (allowingallairtobepurged).Whenallairispurgedswitchthe
power on, wait for a few seconds while the water is heated and
 adjustowrestrictortogivetherequiredtemperature.
Remember the outlet valve is fully opened at this point so the
required temperature may need further adjustment.
5.4 Itisimportanttonotewhensettingtheowrate/temperaturethat
 48°Cisthepointatwhichtheaveragepersoncannotholdhis
or her hand under a stream of water. Under most circumstances
the water temperature need not be higher than this and it is
 recommendedthatthistemperatureisnotexceededfornormal
use.
5.5 Theseheaterswillsupplyonlyoneoutletatanytimeandmust
be controlled by a single outlet valve.
DO NOT USE WITH MIXER VALVES.

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6.0MULTIPLEINSTALLATION
6.1 Whenlargervolumesofwaterarerequiredthancanbeprovided
by one heater, multiple installations can be made by connecting
a number of heaters in PARALLEL of the cold feed manifold
 (SeeFigure6).ThisistheONLYmethodthatisrecommended
 providedallheatersreceiveacceptableowrates(2.5ltr/min
 recommended).DONOTplumbtheseheatersinseries.
6.2 Tosettheheatersinthisarrangementusetheappropriate 
procedure as described previously. Each heater in parallel must
be set individually.
6.3 Inthisapplicationrestrictorscapableofclosingowcompletely
should be used so that as each heater is set in turn, the other
heaters in the installation may be isolated.
NOTE-Inthisapplicationitisadvisableespeciallywherelowow
ratesexisttoplumbthecoldmanifoldin22mmpipewith15mmpipe
spurs to each heater.
B - RESTRICTORS F - COLD WATER SUPPLY MANIFOLD
D - EXPANSION RELIEF VALVES G - HOT WATER SUPPLY MANIFOLD
E - SERVICE STOP VALVE
B
D
E
F
G
Figure 6

12
ForanyfaultsthatcannotbeidentiedusingtheFaultFindingchart
please contact the Heatrae Sadia Service Department, telephone
08448711535,fax08448711528.
7.0FAULTFINDING
YOUR HEATRAE SADIA MULTIPOINT INSTANTANEOUS SHOULD
GIVE TROUBLE FREE OPERATION. HOWEVER SHOULD A
PROBLEM OCCUR THE TABLE BELOW SHOULD ALLOW MOST
FAULTS TO BE IDENTIFIED. FAULT FINDING SHOULD ONLY BE
CARRIED OUT BY A COMPETENT PERSON.
SYMPTOM POSSIBLE CAUSE REMEDY
1. Water too hot A. Water flow too low Increase the flow by turning the stop valve
2. Water too cold A. Electrical power to Ensure that the electrical supply to the Multipoint
the Multipoint heater Instantaneous is switched on and the neon is lit
is off
B. Water flow too high Reduce the flow by adjusting the water control
isolating valve
C. Element fault Check for open circuit
3. Temperature A. Pressure switch is Check water pressure/flow
varies while operating,
showering, normally making a
cycling "click" as it does so
hot/cold B. Input pressure is Ensure that your stop cock and servicing
below 1.0 bar valve are opened fully
(14.5psi); flow is
not stable
4. "Power on" A. Cartridge fuse or Switch off Multipoint Instantaneous and isolating switch.
indicator not lit. miniture circuit Renew fuse, reset the mcb. If they operate
Isolating switch breaker (mcb) has a second time, contact a qualified electrician
"ON" but its operated in your
neon not lit fusebox (or
consumer unit) or
switch fuse
B. Residual current Follow the same procedure as above. If this
device (rcd) or has happened with a "split load" consumer
(earth leakage unit on initial installation, check that the
circuit breaker) neutral core of the Multipoint Instantaneous feed cable
has operated is connected to the "protected" neutral bar of the unit
5. Water emerges A. Expansion relief valve 1. Switch off immediately at isolating switch
from expansion has operated 2. Turn water off at the servicing valve (if fitted)
relief valve or stop valve
3. Contact Heatrae Sadia Service Department
6. No water flows A. Water supply turned Turn on water supply
with valve open off
B. Unit frozen
Turn OFF ELECTRICITY at isolating switch and
contact installer DO NOT USE THE MULTIPOINT
INSTANTANEOUS

13
8.0SPAREPARTS
The following comprehensive list of spare parts is available for your
Multipoint instantaneous water heater. Please refer to the rating label on the
right hand side of your heater before ordering to ensure the correct spare
parts are obtained.
DO NOT REPLACE WITH PARTS NOT RECOMMENDED BY HEATRAE
SADIA - THIS WILL INVALIDATE YOUR GUARANTEE AND MAY RENDER
THE INSTALLATION DANGEROUS.
Description Code No
1. HeatExchanger7kW.............................................95606965
 HeatExchanger9kW.............................................95606966
 HeatExchanger12kW..........................................95606970
2. Temperaturelimiter1.............................................95612035
3. Temperaturelimiter2.............................................95612036
4. Pressuredifferentialswitchassembly7/9kW........95613005
 Pressuredifferentialswitchassembly12kW.........95613006
5. Multipointinstantaneouscover..............................95614108
6. Neonassembly......................................................95615058
7. Inletbossassembly...............................................95607106
8. Outletbossassembly............................................95607109
9.TerminalBlock........................................................95607249
1
234
5
6
7
8
Figure 7
9

14
9.0GUARANTEE
This Multipoint instantaneous water heater is guaranteed for a period
oftwoyearsfromthedateofpurchaseprovided:
1. The unit has been installed in accordance with these instructions,
all relevant Codes of Practice and Regulations in force at the
time of installation and that all necessary inlet, vent and electrical
connectionshavebeenttedcorrectly.
2. Any valves or controls are of Heatrae Sadia recommended type.
3. The unit has not been tampered with.
4.Theunithasbeenusedonlyforheatingpotablewater.
The unit is not guaranteed against damage by frost or due to the build
up of scale. Please note that if Heatrae Sadia personnel or agents
are requested to de scale a unit, this work will be chargeable.
This guarantee does not affect the statutory rights of the consumer.
The policy of Heatrae Sadia is one of continuous product development
and,assuch,wereservetherighttochangespecicationswithout
notice.
ENVIRONMENTALINFORMATION
This product is manufactured from many recyclable materials. At
the end of its useful life it should be disposed of at a Local Authority
Recycling Centre.

15
Notes:

16 36006037
Issue5
Spares Stockists
Forthefastandefcientsupplyofsparespleasecontactthestockists
listed below.
ElectricWaterHeatingCo.   
2 Horsecroft Place, Pinnacles
Harlow,Essex,CM195BT
Tel:08450553811
E-Mail:[email protected]
SPD
Units9&10HexagonBusinessCentre
SpringeldRoad,Hayes
Middlesex,UB400TY
Tel:02086063567
Parts Center
Tel:08452709801
www.partscenter.co.uk
Newey&Eyre
Specialist Products Division
Please contact your local branch
UK Spares Ltd.
TowerLane,Warmley
Bristol,BS308XT
Tel:01179616670
WilliamWilsonLtd.
Unit3A,780SouthStreet
Whiteinch,Glasgow,G14OSY
Tel:01414341530
Heatrae Sadia Heating
HurricaneWayNorwichNR66EA
www.heatraesadia.com
Sales:  08443356394
SalesFax: 08448711543
Service:  08448711535
ServiceFax: 08448711528
ServiceEmail: heatraesadiaservice@
heateam.co.uk
©2009
®