Biasi M90E.24S User manual

Usermanualand
Installationinstructions
RIVACOMPACT
Models:
M90E.24S
M90E.28S
M90E.32S

Congratulationsonyourchoice.
Yourboileriselectronicallycontrolledandhaselectronicignition.
Thematerialsitismadeofandthecontrolsystemsitisequippedwithgiveyousafety,ahigh
levelofcomfortandenergysavingstoallowyoutoget thegreatestbenefitoutofindependent
heating.
Rememberthat...
nThemanualmustbereadthoroughly,so
thatyouwill beabletousetheboilerinasafe
andsensibleway;
mustbecarefullykept.Itmaybenecessary
for referenceinthefuture.
nFirstlightingupmustbecarriedoutby
competentandresponsible engineer.
nThemanufacturerdisclaimall liabilityfor
anytranslationsofthepresentmanualfrom
whichincorrectinterpretationmayoccur;
cannotbeheldresponsiblefornon---observ-
anceofinstructionscontainedinthismanual
orfortheconsequencesofanyprocedure
notspecificallydescribed.
Usingtheboiler...
nBeforelightingtheboiler,youaread-
visedtohaveaprofessionallyqualified per-
soncheckthat theinstallationofthegas
supply:
---isgas---tight;
---isofthecorrectgaugefortheflowtothe
boiler;
---isfittedwithall thesafetyandcontrolde-
vicesrequired bythecurrentRegulations;
Ensurethat theinstallerhasconnectedthe
pressurereliefvalveoutlet toadrainpipe.
Themanufacturersarenotresponsiblefor
damagecaused byopeningofthepressure
reliefvalveandconsequentescapeofwater,
ifnotconnectedcorrectlytothedrain.
nOndetectingthesmell ofgas
--- don’toperateanyelectricalswitches,the
telephoneoranydevicethatmayproduce
sparks;
--- openthewindowsand doorsatonceto
createadraughtofairwhichwill purgethe
area;
--- shutoff thegascocks;
--- get theassistanceofaqualified person.
nDonot touchtheappliancewithpartsof
thebodythatarewetordampand/orbare
feet.
nIncaseofstructuralworkormainten-
ancenearthe exhaustductand/orfume ex-
haustdevicesortheirattachments,turnoff
theappliance.Oncompletionofthework,
haveaprofessionallyqualified personcheck
theirefficiency.
nRepairs(underguarantee)mustbecar-
riedoutonlybyanapprovedengineer,using
genuinespareparts.Thusdonomorethan
switchingoff theboileryourself(see thein-
structions).
nYourboilerallowsheatingupofwaterto
atemperatureless thanboilingpoint;
--- mustbeconnectedtoacentralheating
systemand/orahotwatersupplysystem,
compatiblewithitsperformanceandoutput;
--- canbeusedonlyforthosepurposesfor
whichithasbeenspeciallydesigned;
--- mustnotbetouched bychildrenorby
thoseunfamiliarwithitsoperation;
--- mustnotbe exposedtoweathercondi-
tions.

Safehandlingof
substances
Biasiproductsaremanufacturedinaccordance
withISO9000 and donot,andwill not,containany
hazardousmaterialsorsubstances suchasas-
bestos,mercuryorC.F.C.’s.
Theappliancepackagingdoesnotcontainany
substances,whichmaybeconsideredahazardto
health.
Combustionchamberpanels
Material:mineralfibers
Known hazards--- Somepeoplecansuffer red-
deninganditchingoftheskin.Fibre entryintothe
eyewill causeforeignbodyirritation,whichcan
causesevereirritationtopeoplewearingcontact
lenses.Irritationtorespiratorytract.
Precautions--- Dustgoggleswill protecteyes.
Peoplewithahistoryofskincomplaintsmaybe
particularlysusceptibletoirritation.Highdustle-
velsareonlylikelytoarisefollowingharshab-
rasion.Ingeneral,normalhandlingandusewill
notpresenthighrisk,followgoodhygieneprac-
tices,wash handsbefore,touchingeyes,consum-
ingfood,drinkingorusingthetoilet.
Firstaid--- Medicalattentionmustbesoughtfol-
lowingeyecontactorprolongedreddeningofthe
skin.
Thermostat/Temperaturegauge
Description--- Sealed phialandcapillarycontain-
ingliquid.
Known hazards--- irritatingtoskin,eyesand
throat.Vapourisharmful.Inflammable--- donot
extinguishwithwater.
Precautions--- Donotincinerate.Avoidcontact
withbroken/leakingphials.Donotpurposely
puncture.
Firstaidmedicalattentionmustbesoughtfollow-
ingeyes/skincontact,washwithcleanwater.
AppliancecategoryII2H3+GasG20 20 mbar,G30 29 mbar,G31 37 mbar
Countryofdestination:UnitedKingdom
ThisapplianceconformswiththeEECdirective90/396 and,consequently,ithastheright tomakeuse
ofthebrandname
Moreover,theapplianceconformswiththeEECdirective87/308 relativetothepreventionandelimina-
tionofradiodisturbances.
Theapplianceisbuilt tocomplywiththeregulation nowinforceregarding gasappliance’s safetyand
theEuropeanregulation nowinforcerelativetosafetyofhouseholdandsimilarelectricalappliances.
Themanufacturer,inthecontinuouspocess toimprovehisproducts,reservestheright tomodifythe
dataexpressedinthepresentdocumentationatanytimeandwithoutpriornotice.
Thepresentdocumentationisaninformativesupportanditcannotbeconsideredasacontract to-
wardsthird parties.

Boilerinstallationandcommissioningtips
nTheinstallationmustbecarriedoutby
aqualified personwhowill beresponsiblefor
observingthecurrentRegulations.
Installingtheboiler...
nDonotforget toremovethetransitcaps
and plugsfromtheboilerconnectionsthese
arefittedtoeveryboiler.
nKeeptheboilerclearofdustduringin-
stallationandinparticulardonotallowany
dustordebristoenterthetopoftheboiler
wheretheflueconnectionismade.Itisrec-
ommendedthatyouputadustsheetoverthe
topoftheboileruntilyouarereadytomake
theflueconnection.
nBecause everyboilerisfiredandtested
liveat thefactory,asmall amountofwater re-
mainswithintheboiler.Itispossibleforthis
watertoinitiallycausethepumptoseize.Itis
thereforerecommendedthat thepumprotor
bemanuallyturnedtofree itsrotationbefore
turningtheboileron.
nRemembertoreleasetheautoairpurge
beforefillingtheboiler.See theinstructionsto
identifythelocationofthisdevice.
nDonotremovethecapofthepressure
testpointsoftheairswitch(topleftsideofthe
boiler).
nYouarestronglyadvisedtoflushout the
systembothcoldandhotinordertoremove
systemandinstallationdebris.
nItisalsosensibletoinitiallyfireandcom-
missiontheboilerbeforeconnectinganyex-
ternalcontrols suchasaroomthermostat.By
thismethodifyou haveasubsequentprob-
lemfollowingtheadditionofanexternalcon-
trolyoucaneliminatetheboilerfromyour
faultanalysis.
nDonotforget torangeratetheboilerto
suit thesystemrequirements.Thispro-
cedureiscoveredinthecommissioningsec-
tionoftheinstallationmanual.
nIftheboilerisfittedwithadigitalpro-
grammer,whensettingthetimesforauto-
maticoperation,rememberthatforevery
“ON”timetheremustbean“OFF”timetofol-
lowandthatoneveryoccasionyouentera
timeyoumustalsoindicatewhichdaysthat
youwant theboilertofollowthetimedset-
tings.
nSomeproductsincorporateananticycl-
ingtimedelay.Itisnormalwhenfirstswitch-
ingtheboileronfortheboilerto operateon
heatingforafewsecondsthenswitchoff.
After3---4minuteshaselapsedtheboilerwill
thenreigniteandoperateperfectlynormally.
Theignitiondelaycycledoesnotprevent
normaloperationoftheboilertoprovide
d.h.w.
nIfyouareinanydoubtsastotheinstalla-
tionoroperationoftheboilerpleasereadthe
instructionmanualsthoroughlyandthenif
necessarycontactBiasiUKforadviceand
assistance.
Pleaserememberthatifyouareinanydoubtabout theinstallationofthisproductyoucancontactour
TechnicalHelplineontel.01902 304400

TABLEOFCONTENTS
1Appliancedescription1..........
1.1Overview1......................
1.2Controlpanel1..................
1.3Isolationvalves1.................
1.4Technicaldata1.................
2Instructionsforuse2............
2.1Warnings2......................
2.2Refillingprocedure2..............
2.3Ignition3........................
2.4C.h.circuit temperature3..........
2.5D.h.w.temperature4..............
2.6Extinguishing4..................
2.7Builtintimeswitch5..............
3Usefuladvice7.................
3.1Centralheating7.................
3.2Frostprotection7................
3.3Periodicmaintenance7...........
3.4Externalcleaning7...............
3.5Operationalfaults7...............
4Technicalinformation9..........
4.1Overview9......................
4.2Maindiagram10..................
4.3Hydraulicspecifications11.........
4.4Expansionvessel11...............
4.5Technicaldatamod.M90E.24S12...
4.6Technicaldatamod.M90E.28S14...
4.7TechnicaldataM90E.32S16........
5Generalrequirements18..........
5.1Related documents18.............
5.2Locationofappliance18...........
5.3Fluesystem18....................
5.4Gas supply19....................
5.5Airsupply19.....................
5.6Ventilation19.....................
5.7Watercirculation(c.h.)19...........
5.8Domesticwater20.................
5.9Watertreatment20................
5.10 Electricalsupply20................
6Installation21....................
6.1Warnings21......................
6.2Precautionsforinstallation21.......
6.3Installingthebracket21............
6.4Overall dimensions22.............
6.5Joints22.........................
6.6Mountingtheboiler22.............
6.7Fittingthefluesystem23...........
6.8Fluerestrictors23.................
6.9Choiceof flue23..................
6.10 Electricalconnections25...........
6.11 Externalfrostprotection27.........
7Commissioning28...............
7.1Electricalinstallation28............
7.2Gas supplyinstallation28..........
7.3Fillingthed.h.w.system28.........
7.4Initialfillingofthesystem28........
7.5Lightingtheboiler29..............
7.6Checkingthegaspressure
at theburner29...................
7.7Adjustingtheburnerignition30.....
7.8Adjustmentofusefulc.h.output30. .
7.9Checkingtheignitiondevice31.....
7.10 Checkingthefluesystem32........
7.11 Instructingtheuser32.............
8Gasconversion33...............
8.1Warnings33......................
8.2Procedures33....................
9Maintenance34..................
9.1Warnings34......................
9.2Dismantlingthe externalpanels34...
9.3Emptyingthed.h.w.system34......
9.4Emptyingthec.h.system34........
9.5Combustionanalysischeck35......
9.6Cleaningtheprimaryheatexchanger35
9.7Checkingthepressurisation
inthe expansionvessel36..........
9.8Cleaningtheburner36.............
9.9Checkingtheflue36...............
9.10 Visualinspectionofappliance36. . . .
9.11 Gaspressuresandsoundness 36...
Abbreviationsusedinthemanual
C.h.=Centralheating
D.h.w.=Domestichotwater
D.c.w.=Domestic coldwater
USE
INSTALLATIONMAINTENANCE

1APPLIANCEDESCRIPTION
1
1.1Overview
2
1
3
Fig.1.1
1Casefrontpanel
2Controlpanel
3Controlpanelcover
1.2Controlpanel
4C.h.circuit temperatureand pressuregauge
5Timeswitch(c.h.control)
6Lock---outsignal lamp
7Lockoutresetbutton
8Functionselectorandc.h.temperaturecontrol
knob
9D.h.w.temperaturecontrolknob
10 Applianceoperationlight
1.3Isolationvalves
13 1115 1214
Fig.1.2(bottomviewoftheboiler)
11 C.h.returnvalve
12 D.c.w.inletvalve
13 Gasinletvalve
14 D.h.w.outletpipe
15 C.h.flowvalve
1.4Technicaldata
Fordetailedtechnicaldatasee section4.5or4.6
ofthismanual.
10 89 7 6 45
Fig.1.3
USE

2INSTRUCTIONSFORUSE
2
2.1Warnings
BiasiUKLtdsupport theBenchmarkinitiat-
ive.TheBenchmarkLogBookislocatedat
thebackofthismanualandshouldbecom-
pletedbytheInstalling/Commisssioning
EngineerandhandedovertotheUserfor
futurereferencebyothervisitingEn-
gineers.AlsoincludedistheServiceInter-
valRecordcardthatshouldbecompleted
bytheServiceEngineerfollowingthean-
nualservicemaintenanceoftheboilerand
system.
All CORGIRegisteredInstallerscarrya
CORGI IDcard,andhavearegistration
number.Bothshouldberecordedinyour
BenchmarkLogBook.Youcancheckyour
installerisregisteredbycallingCORGIdi-
recton01256 372300.
Inordertoguarantee safetyandcorrectoper-
ation,itisessentialthatall thetestsarecarried
outbyacompetentandresponsibleservice
engineerbeforelightinguptheboiler.
Thetestsaredescribedintheinstallationin-
structionsinsection7commissioning.
Ensurethat thec.h.circuitisregularlyfilled
withwater(eveniftheboilerisonlyusedfor
d.h.w.supply)checkingthat thepressureindi-
catedonthetemperatureand pressuregauge
4isnotlowerthanthatshowninFig.2.2.
Ifthepressurereadingonthepressuregauge
isbelowthatshowninFig.2.2,thenthesystem
will requiretoppingup.Afillingloopisnormally
provided bytheinstallerforthispurpose.
Ifyouareinanydoubtregardingthispro-
cedureyouareadvisedtocontactyourIn-
stalleroranApprovedEngineer.
Thisapplianceisprovidedwithabuiltinanti---
freezesystemthatoperatestheboilerwhen
thetemperatureisbelow4°C
Therefore,whentheboilerisnotlitorusedin
coldweather,withconsequentriskof freezing
donotswitchoff theboilerat thefusedspur
isolationswitchorclosethegasinletcock.
Whenyoudonotexpect tousetheboilerfora
longperiodandtheboilerisnot tobeusedfor
frostprotectionthenfollowtheinstructions
giveninsection2.6onpage4.
2.2Refillingprocedure
1Isolatetheboilerfromthe electricalsupplyat
thefusedspur.Reconnect thefillingloopas
demonstratedinFig.2.1.
Temporary
connection
Controlvalve
Controlvalve
Doublecheckvalve
Supplypipe
(coldwaterinlet)
C.h.returnpipe
Fig.2.1
2Openthevalvesofthefillingloopandwatch
thegaugeuntilitreachesnormalfillingpres-
sureas showninFig.2.2.
4
Normalfilling
pressure
Fig.2.2
3Closethevalvesandremovethefillingloop.
Ifyouexperienceanydifficultywiththeoper-
ationoftheboiler,switchoff theboilerimmedi-
atelyat thefusedspurisolationswitchand
contactyourInstalleroranapprovedService
Engineer
Airintroducedintotheboilerduringthisfillingpro-
cess will vent throughtheautomaticairpurger
fittedtotheboiler.Youmayalsofinditnecessary
toventairfromyour radiatorcircuitusingyour
radiatorkey,howeverbeawarethatexcessive
ventingwill causethepressureinthesystemto
drop.
Alwaysensurethat thepressuregaugeis setat the
required pressure.
USE

Instructionsforuse
3
2.3Ignition
1Checkthat thevalveslocatedinthelowerpart
oftheboilerareopen(Fig.2.3).
Openposition
Fig.2.3
2Turnonthe electricitysupplytotheboiler,
switchingonthefusedspurisolationswitch.
Theapplianceoperationlight10 (Fig.2.4)will
flashevery4seconds(stand---bycondition).
3Iftheboileristobeusedforc.h.and d.h.wposi-
tionthefunctionselector8asinFig.2.4.
Theapplianceoperationlight10 will flash
every2seconds(operatingboiler).
810
Fig.2.4
4Ifd.h.w.supplyonlyisrequired,positionthe
functionselector8asinFig.2.5.
Theapplianceoperationlight10 will flash
every2seconds(operatingboiler).
810
Fig.2.5
2.4C.h.circuit temperature
Theoutput temperatureofc.h.waterisadjustable
fromaminimumofabout38°Ctoamaximumof
about85°C(Fig.2.6),byturningthefunctionse-
lector(8).
Adjustmentofc.h.outputontheboilerisauto-
matic.Thegreatestoutputpre---setinthefactory
can,however,bereducedinlevelaccordingto
actualsystemrequirements;thisdoesnotaffect
themaximumoutputind.h.w.operation.
Suchadjustmentsmustbecarriedoutbyaquali-
fied person;thereforeweadviseyoutocontact
yourinstallerorServiceAgent.
Adjustmentoftheboilertemperaturealtersthe
gasflowat theburneraccordingtothethermalde-
mandinthesystem.Soitisusualtosee theburner
litat theminimumlevelformoreorless long
periods.
Minimum
Maximum
Fig.2.6
Adjustment
Inordertoachieveoptimalsettingsforeconomy
andcomfort,werecommendadjustingtheoper-
atingtemperatureofthec.h.wateraccordingto
theoutsidetemperature,positioningtheknobas
follows:
Lowerthan
--- 5°C
From5to15 °CBetween
--- 5and+5°C
Fig.2.7
USE

Instructionsforuse
4
Yourqualifiedinstallerwill beabletorecommend
themostsuitableadjustmentforyoursystem.
Thetemperatureand pressuregauge(4,Fig.1.3
onpage1)will allowyoutocheckthat theset tem-
peratureisobtained.
2.5D.h.w.temperature
Thetemperatureofthed.h.w.leavingtheboiler
canbevariedfromaminimumofabout35°Ctoa
maximumofabout55°C(Fig.2.8),byturningthe
temperaturecontrolknob9.
Minimum
Maximum
9
Fig.2.8
Adjustmentofthed.h.w.temperatureiscomplete-
lyseparatefromthatofthec.h.circuit.
Theadjustmentsystemintegratedwithinthe
boilerautomaticallycontrolstheflowofgastothe
burnerinordertokeepthetemperatureofd.h.w.
deliveredconstant,betweenthelimitsofmaxi-
mumandminimumoutput.
Wherethedemandisatalowlevelorwiththetem-
peratureset totheminimum,itisnormaltosee a
cycleoflightingandextinguishingoftheburner
whenrunning.
Adjustment
Itisadvisabletoadjust thed.h.w.temperatureto
alevelcommensuratewiththedemand,minimis-
ingtheneedtomixwithcoldwater.Inthisway,the
automatic controlfacilitieswill befullyexploited.
Moreover,wheretheamountoflimescalepresent
inthewatermaybeparticularlygreat,notexceed-
ingthepositioninFig.2.9ofthed.h.w.tempera-
turecontrolknob9correspondingtoabout50°C
(Fig.2.9),minimisesannoyingincidencesofscale
depositsandclogging.
9
Fig.2.9
Inthesecases,however,itisadvisabletoinstall a
small watertreatmentdeviceorsoftener.With
suchadeviceyoushouldavoid periodicdescal-
ing.
Consequently,thed.h.w.heatexchangerwill keep
itsperformanceconsistentforalongerperiodof
timewithresulting gas savings.
Ifthedemandford.h.w.is sogreatastoprevent
reachingahighenoughtemperature,havetheap-
propriateoutputlimitingvalveinstalled by yourin-
stalleroranAuthorisedServiceEngineer.
2.6Extinguishing
Toturntheboileroff set thefunctionselector8to
thepositionshowninFig.2.10.
Theapplianceoperationlight10 will flashevery4
seconds.
810
Fig.2.10
Whenyoudonotexpect tousetheboilerforalong
period:
1Switchoff the electricitysupplytotheboiler,by
meansofthefusedspurisolationswitch;
2Shutoff thegas supplycock13 andthevalves
forthewatercircuitsfittedundertheboiler
(Fig.2.11).
USE