Waterconsumption
ofwasher/dryers
AreportfortheWaterEfficiency LabellingandStandards(WELS) Scheme
AleksanderSzann
AccessProductInformation Consultants
©CommonwealthofAustralia2008
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2600orpostedat
Disclaimer
Theviewsandopinionsexpressedinthispublication arethoseoftheauthoranddonotnecessarily reflectthoseoftheAustralianGovernment,theMinisterforClimateChangeandWater,ortheMinister fortheEnvironment, Heritage andtheArts.
Whilereasonableeffortshavebeenmadetoensurethatthecontentsofthispublication arefactually correct,the Commonwealth doesnotacceptresponsibilityforthe accuracyorcompletenessofthe contents,andshallnotbeliableforanylossordamagethatmaybeoccasioneddirectlyorindirectly throughtheuseof,orrelianceon,thecontentsofthispublication. Formoreinformationcontact:
CONTENTS
SUMMARY 4
1.OBJECTIVE 6
2.PRODUCTS 6
3.LABELAND WEBSITEINFORMATION 6
4.TESTING 8
4.1. Methodology 8
4.2Setup 8
4.3. Testloads 9
4.3.1 General 9
4.3.2 Mode1testload 9
4.3.3 Mode2testload 9
4.3.4 Mode3testload 10
4.3.5 Detergent 10
4.3.6 Machinecontrollersettings 10
5.TESTRESULTS 10
6.CONCLUSIONS 11
7.RECOMMENDATIONS 12
TABLES
Table1:washer/dryerinformation 7
Table2:washer/dryer–TestMachineA 13
Table3:washer/dryer–TestMachine B 14
Table4:washer/dryer–TestMachineC 15
Waterconsumption ofwasher/dryers
AleksanderSzann
AccessProductInformationConsultants
SUMMARY
Inordertoconsiderthecosts,benefitsandfeasibilityofincludingwater-usingdryersintheWater
EfficiencyLabellingandStandards(WELS)Scheme,dataontheactualwateruseoftheseproducts
isrequired. Inaddition,anassessmentofthe adequacy ofcurrent AustralianStandardsandtheirtest proceduresfordryersisalsorequired. Toaddresstheseissues,theWELSSchemecommissioned laboratorytesting ofaselectionofcombinationwasher/dryers.
Threepopularbrandsofcombinationwasher/dryerswereindependentlypurchasedandeach machinewassubjectedtothreeseparate testmethods(i.e.modes)toassessitswater consumption at twodifferentwaterpressures.
Althoughthisstudywasprimarilyconcernedwithdeterminingthe waterconsumptionofthemachine duringitsdryingoperation,thewaterconsumedduringwashingaswellasthe totalwaterconsumed (i.e.duringwashinganddryingoperations)bythemachinewerealsodetermined.
Thethreetestmodesconsistedofdeterminingthequantityofwaterconsumedduring:
•adryingcycleasspecifiedinAustralianandNew Zealand StandardAS/NZS2442
•acompletewashanddrycycleasrecommended bythemanufacturer(i.e.washingafullloadthenseparating theloadanddryingonlytheportionoftheloadthatisequivalenttothedryer capacity)and
•asingleoperationofacompletewashanddrycycle(i.e.washinganddryingaloadthatisequivalenttothe dryercapacity), whichisthemostprobable mannerthatthemachinewill actuallybeusedbymostconsumers.
Thestudyfoundthefollowing:
a)Therewasclosecorrelationbetweenthe waterconsumptiondataforthe washcycleonthe labelandthatdeterminedinthisstudy.
However, thiswasnotthecaseforthe dryercyclewherethe quantityofwaterconsumedwas significantlygreaterthanthatreportedwhenthe productwasregisteredundertheenergyrating scheme.
Thisisprobablybecausethe waterconsumptionforthewashcyclesiscoveredbyregulations (bothenergyandtheWaterEfficiencyLabellingandStandards(WELS)Scheme)and manufacturers/supplierstookmorecaretoensurethattheproductscomplied withlabelled information. Forthedryercycle,however,thewaterconsumption needonlybereportedwhen applyingforenergyregistrationandisnotcoveredbyregulation.
b)Generally, the waterconsumptionfiguresforthewashcyclesofthetestedmachineswere similar,irrespectiveofthewashloadandwaterpressure.
AnexceptionwasTestMachineC,whichappearedtoincorporatemeans foradjustingwater levelrelativetothewashloadandassuchhadreducedwaterconsumption whenthewash loadwasreduced.
c)Generally,eachofthemachineswasabletoreducethemoisturecontentofthedriedloadto
6percentorlessasrequiredinAS/NZS2442.
Inessence,eachofthemachinesextractedmoremoisturefromthewashloadattheendofthe
washcyclethanrequiredinAS/NZS2442.
d)Generally, thetimetakentocompleteawashcyclewasthesameirrespectiveofthewashload andwaterpressure.Thiswasalsotrueforthe dryingcycle.
However,inthecaseofTestMachineBthedryingtimewasapproximatelydoublethatofthe washtimewhereasfortheothermachinesthewashanddrytimesweresimilar.
Thetotalwashanddrytimesvariedbetween thetestmachinesfromalittlemorethan3hoursto justunder7¼hours.
Inviewofthefindingsthefollowingcouldbeconsidered:
1.Thedryercomponentofwasher/dryerscouldbeincorporated intotheWELSscheme.
2.Intheimmediate term,alabellingprogramforwater-usingdryerscouldinvolveaseparatelabel
forthedryerusingthestandardised testinAS/NZS2442,aswellasthecurrentwateruse
labelforthewashcycle.
3.In the longerterm,the labellingprogramcouldmovetowardsasinglelabelthatindicatesthe totalwaterconsumedduringboththewashinganddryingcycles ofwasher/dryers.
4.Aprojectrequesttothiseffectcouldbelodged withStandardsCommitteeEL/15/4todevelop
anappropriatetestprocedure thatwouldenabletheuse ofasinglelabel.
StandardsCommitteeEL/15/4couldalsoberequestedtodevelopanewstarratingtoreflect
acceptabletotalwaterconsumptionslimitsforusewithasinglelabel.
5.Registrationandassessmentofproductscouldensurethatproductsaretestedtothe requirementsofthe appropriate Standards.Forexample,if anauto-sensorisprovidedona dryerthenthis featureshouldbeusedwhentestingthemachine.
6.Theimplementation ofalabellingprogramcouldbecloselyfollowedbyachecktesting programtoensureatleastthelabelled informationiscorrectanditisadequatelycontrolledby themanufacturerorsupplierthroughtheirsupplychainsovertime.
7.TheWELSwebsiteandanyWELSpublicationsonwasher/dryerscouldincludeinformation detailingthe:
idifferencesinthewasheranddryercapacitiesandasaconsequence,the needtoremove someofthe washingfromthe machinebeforecommencingthe dryingcycleand
iitimerequiredforeachofthewashanddrycycles.
1.OBJECTIVE
Theobjective ofthisstudywastodeterminethe waterconsumptionofwasher/dryers(particularly duringtheirdryeroperation)whensubjectedtoavarietyoftestconditions.
Whereappropriate, thestudyfollowedascloselyaspossiblethetestproceduresspecified in AustralianandNew Zealand StandardsAS/NZS2040forthewashingcycleandAS/NZS2442 forthe dryingcycle.
2.PRODUCTS
Threeproductswereselectedforthisstudy.Eachproductwas:
i)independentlypurchasedthrougharetailoutlet
ii) selectedbecauseitwasareadilyrecognisableandpopularbrand
iii) selectedbecausethe reportedwaterconsumption(indryermode)ofthemachines representedalower,middleandupperpointofthestockintheAustralianmarketplaceand
iv) selectedbecausethemachinehadanautosensingmoisturecontrolsettingfacility.
Thiswasnecessarytominimisetestingtimeasmachineswithonlyatimercontrolrequire atrialanderrorapproachforthedrying tests(soastodeterminethepointatwhich appropriate drynessofthetestloadisreached).
3. LABELAND WEBSITEINFORMATION
Descriptiveandperformancedataasperlabelandwebsite(energyandWELSsites)information foreachoftheproductswasasindicatedinTable1.
Thedatainblackisinformationfromthe labelssuppliedwiththetestmachines.
Wheredatainredappear, thisindicatesthatnumbersdifferentfromlabeldataappearontheenergy orwaterratingwebsites,orthatlabeldataweremissing.
TestMachineCdidnotincludeanenergydryerlabelbutdidincludetwoidenticalenergywasher labels.Themanufactureradvisedthatasecondenergywasherlabelwasinadvertentlyincludedin placeofthe requiredenergydryerlabel.
Table1:washer/dryerinformation
WASHER/DRYER / TestMachineA / Test
Machine B / Test
MachineC
WASHER / WELS / Wash program / Cottonsnormal,eco
60oC / Cotton40oC
intensive
1400 rpm / Cottons40oC
intensive
Ratedcapacity / (kg) / Notrequired (combinedlabel) (7) / 7.0 / 5.5
Starrating / 4 / 4 / 4
Waterconsumption / (L/Wash) / 68 / 72
(71.5) / 48
ENERGY / Wash program / Cottonsnormal,eco
60oC / Cottons40oC intensive1400 rpm / Cottons40oC
intensive
Ratedcapacity / (kg) / 7.0 / 7.0 / 5.5
Starrating / 4 / 4 (4½) / 4
Energyconsumption / (kWh/52 uses) / 259 / 250
(212) / 199
DRYER / ENERGY / Dryerprogram / Cottons,
dryonly,timeddry / Drymore / Nodryerlabel
(normal+)
Ratedcapacity / (kg) / 3.5 / 4.0 / (2.5)
Starrating / 2½ / 2 / (3½)
Energyconsumption / (kWh/52 uses) / 140 / 174 / (84)
Table1oneshowsthat,apartfromthemissingenergydryerlabelinthecaseofTestMachineC, theinformationonthelabelsandthewebsitescorrelatedwell.Wherethereweredifferencesthese under-estimatedtheperformance ofthemachineonthelabel.Sincethelabelismorevisiblethan
thewebsite, such under-estimationisprobablyintendedtoprotectsuppliersagainstanymislabelling challenges.
4.TESTING
4.1.Methodology
Althoughthe generalmethodologyusedtodeterminethe waterconsumptionofthemachinesinthis
studywasbased ontheproceduresspecifiedinAustralianStandardsAS/NZS2040andAS/
NZS2442, theprocedureswerevariedinordertoassesswaterconsumptionunderdifferentmodes
ofmachineoperation.
Thatis,eachofthemachineswassubjectedto:
(a)Threeseparatemodesofoperationcomprising -
i)AdryingcycleasspecifiedinAS/NZS2442.
Thismodewasintendedtoconfirmthe waterconsumptionofthedryingcycleinformation indicatedonthelabelforeachofthemachinesandalsotoallowdirectcomparisonwith the waterconsumptionvalues obtainedfortherespectivemachinewhentestedinModes
2and3.
ii) Acompletewashanddrycycleasrecommendedbythemanufacturer/supplier (i.e. washingafullloadthenseparating theloadanddryingonlythatportionoftheloadthat isequivalenttothedryercapacity).
Thismodewasintendedtoascertainseparatelythe waterconsumptionduringthe washing cycle(inaccordancewithAS/NZS2040)andadryingcycleasrecommended bythe manufacturer/supplier.
iii) Acompletewashanddrycycleinasingle operation,whichisassumedtobehow
themachinewillactuallybeusedbyconsumers(i.e.washinganddryingaloadthatis equivalenttothedryercapacity).
Anecdotal evidencesuggeststhatthevastmajorityofwashingmachinesareonlyabouthalf loadedbecauseconsumersbelievethatafullloadwillnotwasheffectivelybecauseofits bulk.Moreover,theremovalofpartofthewashfordryinglaterinthemachine,ordrying
byothermeanssuchaslinehanging,requiresaconsumerresponseafterthewashing cycleiscompleted. Thismodeofuseisconsideredunlikely,duetotheadditionaltimeand inconvenienceitinvolves,andthatakeysellingpointforwasher/dryersistheir‘straight- through’capacitytotakedirtyclothesthroughtocleananddryinasingle combinedcycle thatrequiresnohumanintervention.
and
(b)Supplywaterpressuresof:
i)320kPa
ii) 500kPa.
4.2.Setup
Eachofthetestwasher/dryerswereexaminedforanyobviousdefectsthatcouldaffecttheir performance. Asnodefectswereobserved,eachmachinewasseparatelyinstalledinaccordance withthemanufacturer’sinstructions,connectedtopowerandwatersupplies,andalldatameasuring instrumentationwasappropriatelyconnected.
Thepower, plumbingandinstrumentationwereallasrequiredunderAustralianStandards
AS/NZS2040andAS/NZS2442.
4.3.Testloads
4.3.1 General
Thetestloadsusedforeachofthethreemodesinthewashanddryoperationswereprepared(where thetestmodeallowed)inaccordancewiththerequirementsspecifiedinAS/NZS2040andAS/ NZS2442.
Testswatches werenotattachedtoanyofthetestloads,exceptforTestMode2*andMode3*ofTestMachineB.TestMode2*andMode3*ofTestMachineBarerepeat teststhatwereaddedtothisstudywhenthedetermined water consumption resultsforwashcycleinrespecttoTestMode2and Mode3weresignificantlydifferenttothatindicatedonthelabel.Informationfromthemanufacturer suggestedthatthismachineincludedsudsdetectionsoftwareandtoobviateanyfurtheranomalies test swatchesanddetergent(see4.3.5)wereusedintherepeattests.
4.3.2 Mode1testload
(a)Washertestload
Notestloadwaspreparedforthis modeasthewashcyclesinthis modeandMode2were thesame.
Note:ThewashcycleinthisModeandMode2areequivalenttothe standardisedwashcycle andtoobviate repeating tests,thewashtestforthisModewasnotcarriedout.
(b)Dryertestload
Thedryertestloadfortheappropriaterateddryercapacitywasselectedinaccordancewith therequirementsofTableE2ofAppendixEinAS/NZS2442.1. Theloadwasthenprepared andwashed sothatthewetloadwasbetween 185 percentand190 percentofitsbonedry massasis requiredbyAS/NZS2442.1.
4.3.3 Mode2testload
(a)Washertestload
Thewasher testloadfortheappropriateratedwashercapacitywasselectedinaccordance withtherequirementsofTableC2ofAppendixCinAS/NZS2040.1. Theloadwasthen preparedasrequiredbythatStandard. Loaditemsinthewashloadthatwerecommontothe loaditemsrequiredfortheappropriate rateddryerloadofthemachinewerenotedforretrieval forthe dryingcycle.
(b)Dryertestload
Followingthecompletionofthe washingcycle,the washedwetloadwasremovedfromthe machineandwithoutdelaytheitemsidentified in(a)aboveasbeingcommontothedryerload (fortheappropriate rateddryercapacity),wereseparatedfromthe washedloadtomakeup
thedryerload.
4.3.4 Mode3testload
(a)Washertestload
Thewasher testloadfortheappropriate rateddryercapacity,wasselectedinaccordance withtherequirementsofTableC2ofAppendixCinAS/NZS2040.1 andtheloadwasthen preparedasrequiredbythatStandard.
(b)Dryertestload
Thedryerloadwasthesameloadthatwasselectedforthe washingcycle.
4.3.5 Detergent
Aswashingperformancewasnotbeingassessed,detergentwasnotusedinanyofthetestsinthis studyexceptforTestMode2*andMode3*ofTestMachineB.
Asmentionedpreviously,TestMode2*andMode3*ofTestMachineBwererepeat teststhatwere addedtothisstudywhenthedetermined water consumption resultsforthe washcycleinrespecttoTest Mode2andMode3weresignificantlydifferenttothatindicatedonthelabel.Informationfromthe manufacturersuggestedthatthemachineincludedsudsdetectionsoftwareandtoobviateanyfurther anomaliesdetergentandtestswatches(see4.3.1)wereusedintherepeattests.
4.3.6 Machine controllersettings
Thecontrolsforthe washcycleandthedrycycleoneachofthetestmachines weresettotheprogram indicatedontheappropriate label,exceptinthefollowingcases:
(a)TestMachineA–wherethelabelindicated thatthe dryerprogramusedamanualtimer, whereasthis studyusedtheautosensingmodeasisrequiredunderClause3.1ofAS/ NZS2442.1.
(b)TestMachineC–wherethewashprogramindicatedonthelabelwasnotavailableonthe controlpanelandtheappropriate programthatwasusedwasobtaineddirectlyfromthe manufacturer.
5.TESTRESULTS
Tables2to4indicatedetailsofthemachinesettings,thewaterpressureusedandthetestresultsfor
eachoftheTestModes.
•intanindicateinappropriatecontrolsettings
•inlightblueindicateanomaliesinthetestresultsand
•inredindicatefailuretocomplywiththerequirementsoftheappropriate Standard.
6.CONCLUSIONS
(a)Foreachofthemachines,thewaterconsumptionforthe washcycleinMode2(whichis equivalenttothestandardised washtestforwaterconsumption)correlatedwellwiththewater consumptionindicatedontherespectiveenergyandwaterratinglabels.
(b)Foreachofthemachines,thewaterconsumptionforthe washcyclewasgenerallysimilar irrespectiveofwhichtestloadorwhichwaterpressurewasappliedtothatmachine.
TestMachineCwasanexceptionasithadareducedwaterconsumption(about30percent less)whenthewashloadwasreducedfromafullload(Mode2)tothatofthedryerload (Mode3).Itislikelythatthismachineincludedameansthatadjustedthewaterlevelaccording tothewashload.Theothermachinesappeared touseafixedquantityofwaterforallwash loads.
(c)WiththeexceptionofTestMachineC,thequantityofwaterconsumedduringthedryingcycle asdeterminedbythestandardised procedurespecifiedinAS/NZS2442.1 (i.e.Mode1), wassignificantlygreater(about26percentinthecaseofTestMachineBand39percent
inthecaseofTestMachineA)thanthatreportedwhenthe productwasregisteredunderthe energyratingscheme.
(d)Generally,eachofthemachinesinthisstudywasabletoreducethemoisturecontentofthe driedloadto6percentorless.
However,inthecaseofTestMachineA,asthedryerwastestedusingthemoistureautosensor ratherthenthemanualtimerasspecifiedontheenergylabel,themoisturecontentofthedried washingwasfoundtobeapproximately threetimesgreaterthanthe6percentlimit.Whenthe machinewastestedunderModes2or3conditionshowever,themachinewasabletoeasily achievethe6percentlimit.
TestMachineBmarginallyexceededthe6percentlimitwhenthewatersupplypressurewas
increasedto500kPa. Note:See(a)of4.3.6.
(e)Foreachofthemachines, thedampmassofthetestloadinModes2and3,afterthewashing cycle,wassubstantiallylessthanrequiredunderAS/NZS2442.1 (Mode1).Clearly,the machinesextractedmoremoisturefromthewashingduringtheirspindryprocessthanrequired byAS/NZS2442.1.
However, althoughthemoisturecontentofthetestloadinModes2and3(i.e.wherethe dampnessoftheloadisdeterminedbythemachine)wasless thanthatinMode1(i.e. standardiseddampness),thequantityofwaterusedduringthedryingcycleforModes2and3 wasnotalways lessthanthatusedinMode1.
TestMachineChadaslight,butnoticeable,reductioninwaterconsumption (about10percent less)inModes2and3presumablyduetothereducedmoisturecontentofthetestloads.
ForTestMachinesAandC(apartfromsomeanomaliesinTestMachineA),thetimetakenfortheir respectivewashcycleandthatfortheirdrycyclewasapproximately thesameirrespectiveofthe Modeinwhichthemachinewastested.
Thetotalwashanddrytimesforthesemachinesvariedfromalittlemorethan3hourstonearly
5hours.
However,forTestMachineBthedryingtimewasnearlydoublethatofthewashtimeforeachof
thetestmodesanditscombined washanddrytimesvariedfromjustunder6¾ hourstojustunder
7¼hours.
7.RECOMMENDATIONS
Resultingfromthisstudyandthepreviouswasher/dryerstudyat
washer-dryer.html,thefollowingcouldbeconsidered:
1.Alabellingprogramforthedryercomponentofwasher/dryermachinesisproposedbecause:
i)consumersaregenerallynotawarethatthesemachinesuse waterinthe dryingprocess
ii) labellingwouldinformconsumersofthesubstantialquantitiesofwaterthatareusedbythese machinesandassuchconsumerswouldhaveabasisforcomparisonwithothermachines and
iii) manufacturers/supplierswouldberequiredtomoreaccuratelyindicatethe water consumptionofthesemachineswhenindryingmode.
2.Intheimmediateterm,thelabelling programcouldbeaseparatelabelforthedryingcycleusing
thestandardised testinAS/NZS2442.1.
3.Inthelongerterm,thelabelling programcouldbeasinglelabelthatindicatesthetotalwater consumedduringboththewashinganddryingcycles.
4.Itis recommended thatthisissuebereferredtoStandardsCommitteeEL/15/4sothatan
appropriatetestprocedure forasinglelabelcanbedeveloped.
Withregardtoapossibleprocedure,sinceforenergydeterminationsthe washinganddrying
componentsofthecombinationunitwillneedtocomply withAS/NZS2040andAS/ NZS2442 respectively,thetotalwaterconsumptioncouldbetakenaseither:
i)thesumofthewaterusedasdeterminedbytheaforementioned standardised testprocedures or
ii) thetotalwaterusedbyacompletewashanddrycycle(preferablyasusedinMode3rather thanMode2asMode3morecloselyapproximateshowtheunitwouldbeused).
Withregardto(i)above,thisstudyfoundthatthedampmassofeachofthetestloadsfollowing
awashcycleis significantlylessthanthatrequiredfortestingunderAS/NZS2442.
Itcanbeargued thatthegreaterdampmassrequiredfortestingunderAS/NZS2442doesnot createanomaliesbecausealldryersaretestedusingaloadhavingthe samedegreeofwetness. Howeverthisapproach doesnotencouragetechnologicaldevelopmentthatwouldreducewater (andenergy)consumptionduetoareduceddampload.Amechanismofthistypeappearsto
bepresentinTestMachineC.Itisourbeliefthatsuchdevicesshouldbeencouragedandgiven recognition.
Withregardto(ii)above,althoughthisoptionwouldtakemachinetechnologyintoconsideration andprobablyprovideamoreaccurateindicationofactualwaterconsumption,itwouldrequire anadditionaltesttothatofAS/NZS2040andAS/NZS2442andassuchwouldhave associatedadditionaltestingcosts.
Asinglelabelmayalsorequirenewstarratingbandstoreflectacceptablewaterconsumptions ofcombination units.Moreover, the newratingsforcombination unitsshouldallowfordirect correlationwithstandalonewaterusingdryerswhenthesebecomeavailable inAustralia.
5.TheWELSwebsiteandanyWELSpublicationsgivinginformationontheseproductsshould
includethefollowingdetails:
i)thatthedryerloadcapacityisapproximatelyhalfthatofthewasherloadcapacityandthat usersmayhavetodividethe washedloadintotwolotswhichhavetobedriedseparately and
ii) theextensivetimerequiredforeachofthewashanddryprograms.
Table2:washer/dryer–TestMachineA
Dynamic WaterPressure / 320kPa / 500kPaTestmode / Mode1 / Mode2 / Mode3 / Mode1 / Mode2 / Mode3
WASHER / Wash programonlabel / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC
Wash programused / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC / Cottonsnormal, eco60oC
Washerload–(kg) / 7.0 / 3.5 / 7.0 / 3.5
Bonedrymassoftestload–(kg) / 6.478 / 3.250 / 6.471 / 3.250
Dampmassafterwash–(kg) / 10.138 / 5.115 / 10.195 / 5.128
Time–(h:m:s) / 2:25:34 / 2:29:44 / 2:26:56 / 2:27:06
Energyconsumptionofwasher–Et (kWh) / 0.577 / 0.663 / 0.610 / 0.615
Totalwaterconsumptionofwasher–(L) / 68 / 68.4 / 69.8 / 70.1 / 66.4
DRYER / Dryer programonlabel / Cottons,dry only,timeddry / Cottons,dry only,timeddry / Cottons,dry only,timeddry / Cottons,dry only,timeddry / Cottons,dry only,timeddry / Cottons,dry only,timeddry
Dryer programused / Extradry / Extradry / Extradry / Extradry / Extradry / Extradry
Dryerratedcapacity–(kg) / 3.5 / 3.5 / 3.5 / 3.5 / 3.5 / 3.5
Bonedrymassofdryerload–mbd(kg) / 3.250 / 3.250 # / 3.250 / 3.238 / 3.243 # / 3.250
Dampmass–mw(kg) / 6.175 / 5.094 / 5.115 / 6.148 / 4.984 / 5.128
Massofmoisture–(kg) / 2.925 / 1.845 / 1.865 / 2.910 / 1.741 / 1.878
Percentagemoisturebeforedrying / 90.0 / 56.8 / 57.4 / 89.9 / 53.7 / 57.8
Masstestloadattheendofcycle–mf(kg) / 3.874 / 3.375 / 3.417 / 3.763 / 3.283 / 3.353
Massofmoistureremoved fromtestload–
mr(kg) / 2.301 / 1.719 / 1.698 / 2.385 / 1.701 / 1.775
Time–(h:m:s) / 1:45:53 / 1:45:33 / 1:40:53 / 1:43:02 / 2:27:06 / 1:39:50
Moisturecontentattheendofdryercycle–
mc(%)(Nottoexceed6percent) / 19.2 / 3.85 / 5.14 / 16.21 / 1.23 / 3.17
Energyconsumptiondryer–Et (kWh) / 2.724 / 2.636 / 2.581 / 2.763 / 2.584 / 2.555
Totalwaterconsumptionofdryer–(L) / 35.0 / 35.2 / 33.8 / 33.2 / 33.9 / 33.7
Table3:washer/dryer–TestMachine B
Dynamic WaterPressure320kPa500kPa
TestmodeMode1Mode2Mode2*Mode3Mode3*Mode1Mode2Mode3
Wash programonlabelCotton40oC
intensive
1400 rpm
Wash programusedCotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Cotton40oC
intensive
1400 rpm
Washerload–(kg) 7.0 7.0 4.0 4.0 7.0 4.0
Bonedrymassoftestload–(kg) 6.490 6.481 3.703 3.688 6.48 3.705
Dampmassafterwash–(kg) 9.695 10.148 5.505 5.589 9.744 5.88
Time–(h:m:s) 2:14:53 2:55:44 2:16:04 2:51:15 2:48:00 2:21:00
Energyconsumptionofwasher–Et (kWh) 0.591 0.646 0.631 0.708 0.626 0.661
Totalwaterconsumptionofwasher–(L) 72 44.7 77.7 43.6 71.7 84.4 45.3
Dryer programonlabel Drymore Drymore Drymore Drymore Drymore Drymore Dryer programused Drymore Drymore Drymore Drymore Drymore Drymore Dryerratedcapacity–(kg) 4.0 4.0 4.0 4.0 4.0 4.0
Bonedrymassofdryerload–mbd(kg) 3.702 3.703 # 3.703 3.695 3.670 # 3.705
Dampmass–mw(kg) 7.030 5.533 5.505 7.011 5.462 5.88
Massofmoisture–(kg) 3.328 1.830 1.802 3.316 1.792 2.175
Percentagemoisturebeforedrying 89.9 49.4 48.7 89.7 48.8 58.7
Masstestloadattheendofcycle–mf(kg) 3.812 3.724 3.775 3.952 3.721 3.787
Massofmoistureremoved fromtestload–
mr(kg) 3.218 1.809 1.730 3.059 1.741 2.093
Time–(h:m:s) 4:24:56 4:25:07 4:25:07 4:23:10 4:23:50 4:25:20
Moisturecontentattheendofdryercycle–
mc(%)(Nottoexceed6percent) 2.97 0.57 1.94 6.96 1.39 2.21
Energyconsumptiondryer–Et (kWh) 3.904 3.611 3.536 3.272 3.775 3.802
Totalwaterconsumptionofdryer–(L) 72.8 73.1 73.2 72.3 72.3 72.7
Tan=inappropriate controlsettings;lightblue=anomaliesinthetestresults;red=failuretocomplywiththerequirementsoftheappropriate Standard.
Table4:washer/dryer–TestMachineC
Dynamic WaterPressure / 320kPa / 500kPaTestmode / Mode1 / Mode2 / Mode3 / Mode1 / Mode2 / Mode3
WASHER / Wash programonlabel / Cottons40oC
intensive / Cottons40oC
intensive / Cottons40oC
intensive / Cottons40oC
intensive
Wash programused / Cotton40oC
1600RPM / Cotton40oC
1600RPM / Cotton40oC
1600RPM / Cotton40oC
1600RPM
Washerload–(kg) / 5.5 / 2.5 / 5.5 / 2.5
Bonedrymassoftestload–(kg) / 5.097 / 2.317 / 5.092 / 2.338
Dampmassafterwash–(kg) / 7.636 / 3.548 / 7.754 / 3.559
Time–(h:m:s) / 1:58:54 / 2:00:53 / 2:00:00 / 1:54:07
Energyconsumptionofwasher–Et (kWh) / 0.583 / 0.480 / 0.472 / 0.452
Totalwaterconsumptionofwasher–(L) / 48 / 44.3 / 34.4 / 49.1 / 35.9
DRYER / Dryer programonlabel / NO / DRYER / LABEL
Dryer programused / Normal+
1600RPM / Normal+
1600RPM / Normal+
1600RPM / Normal+
1600RPM / Normal+
1600RPM / Normal+
1600RPM
Dryerratedcapacity–(kg) / 2.5 / 2.5 / 2.5 / 2.5 / 2.5 / 2.5
Bonedrymassofdryerload–mbd(kg) / 2.327 / 2.327# / 2.317 / 2.331 / 2.338# / 2.338
Dampmass–mw(kg) / 4.422 / 3.400 / 3.548 / 4.424 / 3.445 / 3.559
Massofmoisture–(kg) / 2.095 / 1.073 / 1.231 / 2.093 / 1.057 / 1.221
Percentagemoisturebeforedrying / 90.0 / 46.1 / 53.1 / 89.8 / 44.3 / 52.2
Masstestloadattheendofcycle–mf(kg) / 2.464 / 2.371 / 2.453 / 2.471 / 2.415 / 2.450
Massofmoistureremoved fromtestload–mr(kg) / 1.958 / 1.029 / 1.095 / 1.953 / 1.030 / 1.109
Time–(h:m:s) / 1:20:22 / 1:11:22 / 1:31:32 / 1:18:25 / 1:09:40 / 1:15:00
Moisturecontentattheendofdryercycle–mc
(%)(Nottoexceed6percent) / 5.89 / 1.89 / 5.87 / 6.01 / 3.29 / 4.79
Energyconsumptiondryer–Et (kWh) / 1.566 / 1.350 / 1.419 / 1.488 / 1.363 / 1.435
Totalwaterconsumptionofdryer–(L) / 11.4 / 9.7 / 10.3 / 11.0 / 10.5 / 9.9