Developmenthistory
Origin
Around1700BC,theBabylonianshadinventedanancientairconditioningsystemthatusedwindpolesinstalledontheroof.Thenaturalwindfromthenoodlespassesthroughthecoldwaterandblowsintotheroom,makingpeopleindoorsfeelcool.
Inthe19thcentury,theBritishscientistandinventorMichaelFaraday(MichaelFaraday)discoveredthatcompressingandliquefyingacertaingascanfreezetheair.Thisphenomenonoccurswhentheliquefiedammoniagasevaporates.Stayattheorizing.
In1842,FloridadoctorJohnGorriebuiltanewbuildingwithcentralairconditioning.AnengineerfromHoboken,NewJersey,AlfredWolff,assistedinthedesignofthisnewairconditioningsystemandmovedthetechnologyfromthetextilefactorytothecommercialbuilding.Heisconsideredoneofthepioneersinmakingtheworkingenvironmentcooler.
Inthelate1902,thefirstmodern,electric-poweredairconditioningsystemwasinventedbyWillisCarrier(1876-1950).ThedifferencebetweenitsdesignandWolff'sdesignisnotonlytocontrolthetemperature,butalsotocontrolthehumidityoftheairtoimprovethequalityoftheproductionprocessataprintingfactoryinBucklin,NewYork.Thistechnologyprovidesalowheatandhumidityenvironmenttomakethepaperareaandinkarrangementmoreaccurate.Later,Carrier'stechnologybegantobeusedintheworkplacetoimproveproductionefficiency.CarrierEngineeringCompanywasalsoestablishedin1915tocopewiththesurgeindemand.Underthegradualdevelopment,airconditioningbegantobeusedtoimprovethecomfortinhomesandcars.Salesofresidentialair-conditioningsystemsdidnotreallytakeoffuntilthe1950s.Builtin1906,theRoyalVictoriaHospitalinBelfast,NorthernIreland,isofspecialsignificanceinarchitecturalengineeringandisknownastheworld'sfirstair-conditionedbuilding.
In1906,StuartW.CramerofCharlotte,NorthCarolina,USAwaslookingforwaystoincreasetheairhumidityinhissoutherntextilemill.Cramernamedthetechnologyairconditioninganduseditinapatentapplicationinthesameyearasasubstituteforwaterconditioning.Waterconditioningwasawell-knownprocedureatthetime,whichmadetheproductionoftextileseasier.Hecombinedwatervaporandventilationsystemsto"regulate"andtransformtheairinthefactory,andcontroltheairhumidity,whichisveryimportantinthetextilefactory.WillisCarrierusedthisnameandputitinthenameofthecompanyhefoundedin1907:"GaliaAirConditioningCompany"(nowCarrierCompany).
In1915,Carrierestablishedacompany,whichisoneoftheworld'slargestair-conditioningcompanies.But20yearsaftertheinventionoftheairconditioner,machineshavealwaysbeenenjoyed,notpeople.Until1924,amallinDetroitoftenfaintedduetotheswelteringweather,andfirstinstalledthreecentralairconditioners.Thiswasagreatsuccess.Thecoolenvironmentmadepeople'sdesireforconsumptiongreatlyincreased.Sincethen,airconditioningAsapowerfultoolforbusinessestoattractcustomers,theeraofairconditionersservingpeoplehasofficiallyarrived.
Developmentofrefrigerants
Theoriginalairconditionersandrefrigeratorsusedtoxicgasessuchasammoniaandmethylchloride.Theleakageofthistypeofgascanleadtomajoraccidents.ThomasMickleyinventedchlorofluorocarbongasin1928andnameditFreon.Thisrefrigerantismuchsaferforhumans,butitisharmfultotheatmosphericozonelayer.FreonisatrademarkofDuPont’sCFC,HCFCorHFCrefrigerants.Thenameofeachrefrigerantalsoincludesanumbertoindicatethemolecularcompositionofitscomponents(suchasR-11,R-12,R-22,R-134).Amongthem,R-22HCFCrefrigerant,whichisthemostwidelyusedinthefieldofdirectevaporativecoolingproducts,willstopbeingusedinnewproductionequipmentin2010,andwillbecompletelystoppedin2020.R-11andR-12havebeendiscontinuedintheUnitedStates.Asanalternative,somerefrigerantsthatarenotharmfultotheozonelayerhavebeenputintouse,includingtherefrigerantR-410Aunderthetradename"Puron".R290andR32newenvironmentallyfriendlyrefrigerantsarealsograduallyenteringthemarket.R290containsonlycarbonandhydrogeninitsmolecules,notchlorineandfluorine,andhaszeroozonedepletingpotential(ODP).
Popularization
Butwhenitcomestoair-conditioningcanbepopularized,mainlythroughcinemas.MostAmericansareexposedtoairconditionersforthefirsttimeinmovietheaters.Cinemasinthe1920susedair-conditioningtechnologytopromisetoprovidecoolairtotheaudience,makingair-conditioningasattractiveasthemovieitself,andsummerreplacedwinterasthepeakseasonforwatchingmovies.Subsequently,alargenumberofindoorentertainmentvenuesopenthroughouttheyear,suchascasinos,indoorsportsfieldsandshoppingmalls,wereattributedtotheadventofair-conditioning.
Inthe1960sand1970s,raredroughtsoccurredintheUnitedStates.Inordertosolvetheproblemofcoldandheatsourcesofairconditioninginaridandwater-deficientareas,theUnitedStatestooktheleadindevelopingair-cooledchillers,replacingthemwithairforheatdissipation.TheEnglishnameofthecoolingtoweris:AirCoolChiller,abbreviatedasChiller!
EfficiencyEvaluation
EER(EnergyEfficiencyRatio),theenergyefficiencyratio,thatis,thecoolingcapacitydividedbythehourTherefore,thehighertheEERvalueoftheairconditioner,themorepowerisusuallysaved.
COP(CoefficientofPerformance),thecoefficientofperformance,thatis,theheatdrawnbytheairconditionerperunittimedividedbythepoweritconsumes.
Typesofairconditioners
Therearemanytypesofhouseholdairconditioners,amongwhichthecommononesincludewall-mountedairconditioners,cabinetairconditioners,windowairconditionersandceilingairconditioners,buteachoftheseproductsTherearecharacteristics,andthepricesarealsodifferent,soyoushouldchooseaccordingtoyourneeds.
Householdairconditionersaredividedintothefollowing4types:
Wall-mountedairconditioners
Wall-mountedairconditionersarewidelywelcomedbyeveryone,andtheirtechnologyItisalsoconstantlyinnovating.Youshouldpayattentiontocomparingthefunctionaldifferencesofeachbrand.
Ventilationfunctionisthelatesttechnologyusedinwall-mountedairconditionerstoensurefreshairathomeandpreventairconditioningdiseases,makingitmorecomfortableandreasonabletouse.
Inaddition,quietandenergy-savingdesignisalsoveryimportant,allowingyoutosleeppeacefullyuntildawn.Somewall-mountedairconditionershaveultra-smalloutdoorunits.Ifyouplantoputtheoutdoorunitsonthebalcony,thisisalsoagoodchoice.
Asforthewall-mountedairconditioneroftheheatingandcoolingtype,attentionshouldbepaidtochoosinganairconditionerwithaheatingcapacitygreaterthanthecoolingcapacitytoensuretheheatingeffect.Ifthereisanelectricauxiliaryheatingfunction,itcanbeguaranteedtobeabletoheatinanultra-lowtemperatureenvironment(minimum-10degreesCelsius)(thetemperatureoftheairoutletisabove40degreesCelsius).
Cabinetairconditioner
Toadjustthetemperatureinalargearea,suchasalargelivingroomoracommercialplace,acabinetairconditionerismostsuitable.
Whenchoosing,youshouldpayattentiontowhetherthereisanegativeionsendingfunction,becauseitcanfreshentheairandensureyourhealth.However,someverticalcabinettypeairconditionershaveamodelockfunction,andtheoperatingstatusiscontrolledbytheowner,whichismoreusefulforcommercialplacesorfamilieswithchildrenathome,andcanavoidunnecessarydamage.
Inaddition,whethertheairsupplyrangeisfarandwideisalsoveryimportant.Thefarthestairsupplydistanceofthecabinettypeairconditionercanbegreaterthan15meters,andthewide-angleairsupplycantakeintoaccountalargerarea.
Windowairconditioners
Easytoinstall,cheap,suitableforsmallrooms.Whenchoosing,payattentiontoitssilentdesign,becausethewindowmachineisusuallynoisierthanthesplitairconditioner,soitisbettertochooseawindowmachineclosetothenoisestandardofthesplitairconditioner.Inadditiontothetraditionalwindowairconditioner,therearealsonovelstyles,suchasthecolorpanelchildren'smachinespeciallydesignedforchildren,withvoiceprompts,whicharelively,practicalandsafe,andarealsoagoodchoice.
Ceilingairconditioner
Innovativeairconditionerdesignconcept,theindoorunitishoistedontheceiling,andtheairissuppliedbyawideangleonallsides,andthetemperatureisquicklyadjustedwithoutaffectinginteriorrenovation.
Accordingtothefunctionoftheairconditioner,theairconditionercanbedividedintoasingle-coldairconditionerandaheatingandcoolingairconditioner.Single-coldairconditioner:Ithasnoheatingfunctionandissuitableforareaswithhotsummerorsufficientheatingsupplyinwinter.Heatingandcoolingairconditioner:withheatingfunction.
Accordingtoitsheatingmethod,itcanbedividedintoheatpumptypeandelectricauxiliaryheatingtype.Theheatpumptypeissuitableforhotsummerandcoldwinterareas;theelectricauxiliaryheatingtypeisequippedwithelectricauxiliaryheatingcomponents,whichhasstrongheating,soitissuitableforhotsummerandcoldwinterareas.
AllkindsofairconditionersaboveItcanalsobedividedinto:singlecoolingtype:onlyforcooling,suitableforwarmersummerorwinterheatingarea.Coldandwarmtype:withheatingandcoolingfunctions,suitableforhotsummerandcoldwinterareas.Electricauxiliaryheatingtype:Theelectricauxiliaryheatingfunctionisgenerallyonlyusedforhigh-powercabinetairconditioners,andelectricauxiliaryheatingcomponentsareaddedtothebodytoensurestrongheatinginwinter.However,itseemsunnecessaryinthenorthernregionswhereheatingisrelativelysufficientinwinter.
Compositionstructure
Thestructureoftheairconditionerincludes:compressor,condenser,evaporator,four-wayvalve,one-wayvalvecapillaryassembly,etc.
Compressor
Theworkingprocessofaspecifiedtoothvolumepairinanair-conditioningcompressor.Thegasonthesideofthefemalescrewandthemalescrewturningtocatertoeachotheriscompressed,andthissideiscalledthehighpressurezone;onthecontrary,thesideofthescrewturningawayfromeachother,thevolumebetweentheteethisexpandingandinthesuctionstage,whichiscalledthelowpressurezone.Thesetwoareasareseparatedbythecontactlinebetweenthetoothsurfacesofthefemalescrewandthemalescrew.Itcanbeapproximatedthattheplanewheretheaxisofthetwoscrewsislocatedistheboundarysurfacebetweenthehighandlowpressurezones.
Thecompressedrefrigerant(suchasFreon)becomesliquid.Thenusetheheatabsorptionphenomenonwhentheliquidbecomesgaseousundernormalpressureforrefrigeration.
Thedensityofairisverysmall.Youtakeaneedletubeforinjection.Fillaneedletubewithair,blocktheairoutletwithyourhand,andpushtheneedletubetocompresstheair.Withaneedletube,thegascanbecompressedbyone-thirdofitsvolume.
Condenser
Thecompressorsucksinthelowerpressureworkingfluidvaporfromtheevaporator,increasesthepressureandsendsittothecondenser,whereitiscondensedtopressureThehigherliquid,afterbeingthrottledbythethrottlevalve,becomesaliquidwithalowerpressure,andthenissenttotheevaporatorwhereitabsorbsheatandevaporatestobecomeavaporwithalowerpressure,therebycompletingtherefrigerationcycle.Forsomeapplications,thegasmustpassthroughalongtube(usuallycoiledintoasolenoid)toallowtheheattobedissipatedintothesurroundingair.Thermallyconductivemetalssuchascopperareoftenusedtotransportvapor.Inordertoimprovetheefficiencyofthecondenser,finsareoftenaddedtothepipestoaccelerateheatdissipation.Theheatsinkisaflatplatemadeofmetalwithgoodthermalconductivity.
Structurediagramoftheairconditionercondenser:
Evaporator
Theevaporatoristheindoorunit,composedoftubesandcoveredwithfins.Adevicethatconcentratesasolutionorseparatescrystalgrainsfromasolutionbyheating.Itismainlycomposedofheatingchamberandevaporationchamber.Theheatingchamberprovidestheheatrequiredforevaporationtotheliquidtopromotetheboilingandvaporizationoftheliquid;theevaporationchambercompletelyseparatesthegasandliquidphases.Thevaporgeneratedintheheatingchambercontainsalargeamountofliquidfoam.Afterreachingtheevaporationchamberofalargerspace,theseliquidscanbeseparatedfromthevaporbyself-condensationordefoamer.
Four-wayvalve
Four-wayvalve,intermsofhydraulicvalve,isacontrolvalvewithfourports.Thefour-wayvalveisanindispensablepartoftherefrigerationequipment.Itsworkingprincipleisthatwhenthesolenoidvalvecoilisinthepower-offstate,thepilotslidevalveisdrivenbytherightcompressionspringtomovetotheleft,andthehighpressuregasentersthecapillary①andthenenterstherightpistoncavity.Ontheotherhand,thegasintheleftpistoncavityisdischarged.Becauseofthepressuredifferencebetweenthetwoendsofthepiston,thepistonandthemainslidevalvemovetotheleft,sothattheexhaustpipecommunicateswiththeoutdoorunitpipe,andtheothertwopipescommunicatetoformarefrigerationcycle.
Capillaryassembly
Thecapillaryassemblyincludescapillaryandone-wayvalve.Amongthem,theone-wayvalveiscommonlyusedintheoutdoorunitoftheairconditioner.Itconsistsofanauxiliarycapillarytubeandaone-wayvalve.Theone-wayvalvecomponentsofdifferenttypesofairconditionersaresimilar.Thereisanarrowontheone-wayvalve,whichindicatesthattheairflowcanonlyflowinthedirectionofthearrow,anditwillstopinthereversedirectionandcanonlypassthroughtheauxiliarycapillary.Theone-wayvalveassemblyisinstalledatthebottomandrearoftheoutdoorunit.Itisusuallycoveredbyablackshock-absorbingblock,andtheasphaltisusedtosilencethesound.
Theone-wayvalveassemblyisonlyusedintheheatingprocessoftheairconditioner,andtheone-wayvalveassemblydoesnotworkintherefrigeration.Theroleoftheone-wayvalveassemblyduringheatingistoincreasetheflowresistanceoftherefrigerant,reducetheflowspeedoftherefrigerant,sothattherefrigerantisfullyevaporatedintheoutdoorunit,andtherefrigerantgasdischargedfromthecompressorbecomesarefrigerantliquid,Improvetheheatingeffectoftheairconditioner.
Workingprinciple
Airconditionersaredividedintosingle-coldairconditionersanddual-purposeairconditioners.Theworkingprincipleisthesame.TherefrigerantusedinmostairconditionersbeforeisFreon.ThecharacteristicofFreonisthatwhenitchangesfromagaseousstatetoaliquidstate,itreleasesalargeamountofheat.Whenitchangesfromliquidtogas,itwillabsorbalotofheat.(Thatis,theairconditionerisdesignedaccordingtothisprinciple.
Thecompressorcompressesthegaseousrefrigerantintohightemperatureandhighpressuregasrefrigerant,andthensendsittothecondenser(outdoorunit)todissipateheatandbecomesanormaltemperatureandhighpressureliquidrefrigerant,soHotairblowsoutfromtheoutdoorunit.
Thengotothecapillarytubeandentertheevaporator(indoorunit).Aftertherefrigerantreachestheevaporatorfromthecapillarytube,thespacesuddenlyincreasesandthepressuredecreases.Theliquidrefrigerantwillvaporizeandbecomeagaseouslow-temperatureTherefrigerantabsorbsalotofheat,andtheevaporatorbecomescold.Thefanoftheindoorunitblowstheindoorairthroughtheevaporator,sotheindoorunitblowsoutcoldwind;thewatervaporintheairencounterscoldevaporationAftertheairconditioner,itwillcondenseintowaterdropletsandflowoutalongthewaterpipe.Thisiswhytheairconditionerwillemitwater.
Whenheating,thereisacomponentcalledafour-wayvalve,whichmakestherefrigerantflowinthecondenserandevaporatoroppositetothatofcooling,sowhenheating,theoutdoorairblowscoldair,andtheindoorunitItisblowinghotair.
Infact,itistheprincipleofheatdissipation(fromgastoliquid)thatislearnedinjuniorhighschoolphysicsandtheprincipleofabsorbingheatwhenvaporizing(fromliquidtogas).
Theworkingprincipleofenvironmentallyfriendlyairconditioner:
Thewaterinthewatertankiscontinuouslypumpedoutbythecirculatingwaterpump,andthewaterisevenlysprayedontheevaporationfilterlayerthroughthewaterdistributionsystem.TheoutdoorheatAirenterstheevaporativecoolingmedium,andfullyexchangesheatwithwaterintheevaporativecoolingmediumCELdek(ahoneycombfilterlayerofspecialmaterial,whichmakesthecoolingeffectmoreideal,aSwedishhigh-techpatentedproduct).,Thecleanairispressurizedintotheroombyalow-noisefan,sothatthehotairintheroomisdischargedtotheoutside,soastoachievethepurposeofindoorcooling.
Howtodisassembleandinstall
Airconditionermovingisaprofessionalairconditionertechnology.Theseeminglysimpleairconditionermovingworkhasdifferentoperationsinthehandsofdifferentairconditionermovingpersonnel.result.Whentheairconditionerneedstobemoved,trytochooseacompanyauthorizedbythemanufacturertomovetheairconditioner,otherwisethemoremoneywillbespent,andtheairconditionerwillbedamaged.Airconditionerrelocationisdividedintotwosteps:disassemblyandinstallation.
Principle
1.Centralair-conditioningrefrigerationprinciple:compression,absorption,etc.;
2.Centralair-conditioningheatingprinciple;
3.Principlesofcentralair-conditioningsystem:workingprincipleofwindsystem,workingprincipleofwatersystem,workingprincipleofcoilsystem,etc.
1.Refrigerationprinciple
Liquidvaporizationrefrigerationusestheheatabsorptionduringliquidvaporizationandtheexothermiceffectduringcondensationtoachieverefrigeration.Theliquidvaporizestoformsteam.Whentheliquid(refrigeratingmedium)isinaclosedcontainer,inadditiontotheliquidandthevaporgeneratedbytheliquiditself,thereisnoothergasinthecontainer.Theliquidandvaporwillreachequilibriumatacertainpressure.Thegasiscalledsaturatedsteam,thepressureiscalledthesaturationpressure,andthetemperatureiscalledthesaturationtemperature.Duringequilibrium,theliquidnolongervaporizes.Atthistime,ifapartofthesteamispumpedoutofthecontainer,theliquidmustcontinuetovaporizetoproduceapartofsteamtomaintainthisbalance.Theliquidabsorbsheatwhenitvaporizes,andthisheatiscalledlatentheatofvaporization.
Thelatentheatofvaporizationcomesfromthecooledobject,whichmakesthecooledobjectcool.Inordertomakethisprocesscontinue,itisnecessarytocontinuouslyextractsteamfromthecontainer,andcondenseitintoaliquidbeforereturningtothecontainer.Ifthesteamdrawnfromthecontainerisdirectlycondensedintoaliquid,thetemperatureofthecoolingmediumrequiredislowerthantheevaporationtemperatureoftheliquid.Wehopethatthecondensationofthesteamwillbecarriedoutatroomtemperature,sothepressureofthesteamneedstobeincreasedtoroomtemperature.Saturationpressure.
Therefrigerantwillevaporateatlowtemperatureandlowpressuretoproduceacoolingeffect;itwillcondenseatnormaltemperatureandhighpressure,andreleaseheattothesurroundingenvironmentorcoolingmedium.Thesteambecomeshigh-pressureliquidaftercondensingatroomtemperatureandhighpressure,anditspressureneedstobereducedtotheevaporationpressurebeforeitcanenterthecontainer.
Theliquidvaporizationrefrigerationcycleiscomposedoffourprocesses:workingfluidvaporization,steamboosting,high-pressuresteamcondensation,andhigh-pressureliquiddepressurization.
2.Heatingprinciple
Thelow-pressuregassuckedinbythecompressoriscompressedintohigh-temperatureandhigh-pressuregasthroughthecompressor,andthehigh-temperaturegasincreasesthewatertemperaturethroughtheheatexchangerAtthesametime,high-temperaturegaswillcondenseandbecomeliquid.Theliquidenterstheevaporatortoevaporate.(Theevaporatormustalsohaveaheatexchangemediumatthesametime.Accordingtotheheatexchangemedium,themodelandstructureofthemachinearedifferent.Commonlyusedareaircoolingandgroundsource.)Theliquidchangesafterpassingthroughtheevaporator.Itbecomesalow-pressurelow-temperaturegas,andthelow-temperaturegasissuckedintothecompressoragainforcompression.
Inthisway,thecirculatingwaterontheair-conditioningsidebecomeshotwaterofabout45-55degrees.Thehotwaterissenttotheroomthatneedsheatingthroughthepipeline,andtheroomisequippedwithafancoiltoexchangethehotwaterandairtoachievetheheatingpurpose.
3.Systemprinciple
Workingprincipleofwatersystem
Thewater-cooledcentralairconditionercontainsfourmajorcomponentsCompressor,condenser,throttlingdevice,evaporator,therefrigerantcirculatesintheabovefourcomponentsinsequence.Therefrigerant(refrigerant)fromthecompressorflowsthroughthecondensertoreducetemperatureandpressure,andthecondenserpassesthroughthehigh-temperatureandhigh-pressuregas.Thecoolingwatersystemtakestheheattothecoolingtoweranddischargesit.Therefrigerantcontinuestoflowthroughthethrottlingdeviceandbecomesalow-temperatureandlow-pressureliquid,flowsthroughtheevaporator,absorbsheat,andiscompressed.
Thereisachilledwatercirculationsystematbothendsoftheevaporator.Theheatabsorbedbytherefrigerantreducesthechilledwatertemperature,sothatthelow-temperaturewaterflowstotheuserside,andthenpassesthroughthefancoilforheatexchange.Blowoutthecoldwind.
Theworkingprincipleoftheairsystem
Thenovelairisautomaticallysuckedintotheroomthroughnegativepressure,andwhenitenterstheroomthroughthenewairopeninginstalledinthebedroom,hallorlivingroomwindow,itwillautomaticallyremovedustandfilter.Atthesametime,thecorrespondingindoorpipelineisconnectedtotheexhaustventsinseveralfunctionalrooms.Thecirculatorysystemwilltakeawaytheindoorexhaustgasandconcentrateitontheexhaustventto"exhale",andtheexhaustgaswillnolongerberecycled.Goodcirculationofoldandnewwinds.
Theworkingprincipleofthecoilsystem
Thecoiliscooledorheatedtomaintaintherequiredtemperatureandrelativehumidityoftheroom.
Thecoldorhotwaterusedbythecoilissuppliedbyacentralizedcoldsourceandaheatsource.Atthesametime,thefreshairthathasbeencentrallyprocessedbythefreshairairconditioningmachineroomissenttoeachair-conditionedroomthroughaspecialfreshairducttomeetthesanitaryrequirementsoftheair-conditionedroom.
Comparedwiththecentralizedsystem,thefan-coilair-conditioningsystemhasnolargeairducts,onlywaterpipesandsmallerfreshairducts.Ithastheadvantagesofconvenientlayoutandinstallation,smallbuildingspaceoccupation,andgoodindividualadjustment.Itiswidelyusedincomfortairconditionersthatdonotrequirehightemperatureandhumidityaccuracy,havealargenumberofrooms,aresmall,andneedtobeindividuallycontrolled.
Functionalcooling
Inthedesignandmanufactureofairconditioners,itisgenerallyallowedtocontrolthetemperaturebetween16~32℃.Ifthetemperatureissettoolow,ontheonehand,unnecessarypowerconsumptionwillbeincreased,andontheotherhand,whenthetemperaturedifferencebetweenindoorandoutdooristoolarge,peoplecannotquicklyadapttotemperaturechangeswhenenteringandleavingtheroom,andtheyarelikelytocatchacold.
Dehumidification
Theairconditionerisaccompaniedbydehumidificationduringthecoolingprocess.Therelativehumidityoftheenvironmentthatpeoplefeelcomfortableshouldbearound40-60%.Whentherelativehumidityistoohigh,suchasabove90%,evenifthetemperatureiswithinthecomfortablerange,peoplestillfeelbad.
Heating
Heatpumptypeandelectricheatingtypeairconditionershaveaheatingfunction.Theheatingcapacitygraduallybecomessmallerastheoutdoorambienttemperaturedrops.Ifthetemperatureisat-5°C,itcanhardlymeettheheatingrequirements.
Cleantheair
TheaircontainsacertainamountofharmfulgasessuchasNH3,SO2,etc.,aswellasvariousodorssuchassweat,bodyodor,andbathroomodor.
Thepurificationmethodsofairconditionersinclude:changingfreshair,filtering,usingactivatedcarbonorphotocatalysttoabsorbandabsorb.
A.Changetofreshair:Usethefansystemtoexhausttheindoorhumidairtotheoutside,sothatacertaindegreeofnegativepressureisformedintheroom,andfreshairenterstheroomfromthesurroundingdoorandwindowslitstoimprovetheindoorairquality.
B.Photocatalyst:Itcanberegeneratedundertheirradiationoflighttoreleasetheadsorbed(collected)ammonia,nicotine,aceticacid,hydrogensulfideandotherharmfulsubstances,whichcanbereused.
Others
Moderntechnologicaldevelopmentsometimesrequiresadjustmentandcontrolofairpressure,composition,smellandnoise.Therefore,thetaskofairconditioningistousetechnicalmeanstocreateandmaintainanairenvironmentthatmeetscertainrequirements.
Nameplatemeaning
Forexample,model:KFR-26GW
K:standsforhouseholdairconditioner
F:splitairconditioner(C:standsforWindowairconditioner)
R:standsforheatpumpheatingfunction(noRstandsforairconditionerwithsinglecoolingfunction,Dstandsforauxiliaryelectricheatingfunction)
26:ThisnumberstandsforratedrefrigerationQuantity
G:wall-mountedairconditioner(Lstandsforfloor-standingairconditioner,whichiscommonlyreferredtoascabinet)
W:standsforsplitoutdoorunit
Energyefficiencyratio:2.99
Theenergyefficiencyratioistheratiooftheratedcoolingcapacitytotheratedpower,thelargerthebetter.Thenationalfixed-speedairconditionerenergyefficiencyratio3.2-3.6(coolingcapacityCC<=4500W)isdividedintothreelevels,thefirstlevelisthebest,thatis,theenergyefficiencyratioabove3.6isthemostenergy-efficientfirst-levelair-conditioningproduct(Theoldstandardisdividedintofivegrades,thenewstandardfixedspeedairconditionerisdividedintothreegrades,andtheinverterairconditionerisdividedintofivegrades3.0-5.2.Thenewstandardwillbeimplementedfrom2010-6-1,see:GB12021.3-2010fordetails).
Ratedcoolingcapacity:2700W
Theratedcoolingcapacityofwhatweusuallycalla1-hpairconditionerisabout2200W-2600W.
Ratedheatingcapacity:3000W(3600W)
Ratedheatingwattage,themaximumheatingwattageisindicatedinparentheses.
Ratedpower:903Wforcooling
920Wforheating(1520W)
Thisiswhatweusuallycallpowerconsumption,thatis,kilowatts/hour.Heatingpowerindicatesthemaximumratedpowerinparentheses,whichmeansthatthemaximumpowerconsumptionforonehourofheatingisabout1.5characters.
Dimensions:(indoor/outdoor)(mm)widthxheightxdepth
indicatesthesizeoftheindoorunitandoutdoorunitoftheairconditioner,usuallyexpressedinmillimeters,beforeyoubuyItisbesttomeasurewhetherthelocationoftheindoorandoutdoorinstallationisappropriate.
Quality:indoor12kg/outdoor35kg
Thenetweightoftheindoorandoutdoorunitsoftheairconditioner,usuallyaslightlyheavierairconditionermeansthatthematerialsusedarerelativelysolid.
Runningnoise:
Indoorunit:low-high-end:26-35db
Outdoorunit:lessthanorequalto51db
Thenoisevalueofsomeairconditionersiswithintherangeofnationalstandards,andthenoisevalueofsomeinvertersmayberelativelylow.Inaddition,whethertheairconditionerisinstalledproperlyornot,andthemaintenanceandcleaninginusewillalsohavesomeimpactonthenoise.
Applicablearea:12-18squaremeters
Thisisthereferenceapplicableareaofairconditionergivenbythemanufacturer.Wecanalsousetheparametersof115W-145Wforordinaryroomsand145W-175Wforlivingrooms.Calculateityourself.Inordertoavoidthewastecausedbyinsufficientcoolingeffectorexcessivelylargecoolingeffect.
Circulatingairvolume:420squaremeters/h
Thisindicatesthesizeoftheairsupplyareaoftheairconditionerinonehour.Generally,whentheratedcoolingcapacityissimilar,theverticalcabinetmachinehasalargercirculatingairvolumethanthewall-mountedairconditioner.
Modelmeaning
Classificationnumber
Structuralclassificationcode
Integraltype:
Windowmachine--C
Floor-type--L
Split-type--F
Split-typeindoorunit:
Ceilingtype--D
Wall-mounted--G
Embedded--Q
Desktop--T
SplittypeOutdoorunit:W
Functionclassificationcode
Heatpumptype--R
Electricheatingtype--D
Heatpumpelectricheatinghybridtype--Rd
Invertertechnology--BP
Commoncombination
KF:Splitwall-mountedsingle-cooledairconditioner
KFR:Splitwall-mountedheatingandcoolingairconditioner
KFRD:Splitwall-mountedelectricauxiliaryheatingheatingandcoolingairconditioner
KC:Windowairconditioner
LW:Floor-standingairconditioner(cabinet)
Example:KFR-25GWmeansthattheairconditionerisasplitwall-mountedheatingandcoolingairconditioner,anditsratedcoolingandheatingcapacityis2500W.(Note:Themodelidentificationofdomesticbrandsisbasicallythesame.Othersignsinthemodelarethesignsofeachcompanyontheirowntechnicalperformanceandcharacteristics,andareinformalsigns.Importedbrandsignsaredifferent,pleaserefertospecificbrandsforspecificmeanings.)
Namingrepresentation
Modelnamingrepresentation
(K)(×)(×)-(×)(×)(×)
(Specialcodeforroomairconditioner)(Structurecode)(Functioncode)-(Refrigerationcapacity:expressedwithtwoArabicnumerals)(Splitindoorunitcode)(Splitoutdoorunitcode)
Classificationseriesofcoolingcapacity:1250,1400,1600,1800,2000,2250,2500,2800,3150,3500,4000,4500,5000,5100,5600,6300,7100,8000,9000,12000,15000,17000
Representationofspecialnaming
(M)(S)-(0)(9)(B)(V)
(MITSIBISH:MitsubishiElectricCo.,Ltd.)(Structurecode:S-splitW-windowtype)-
(Functioncode:air-coolingH-heatingX-onefortwo)(Refrigerationcapacity)(serialnumber)(powersupplyvoltage:V:198-242S:180-220C:180-242)
Appearanceevolution
ThefirstgenerationgrillePanelHomeAirConditioner
In1988,thefirstdomesticsplitwall-mountedmachineKF-19G1AwasborninHuabaoAirConditionerFactory.Atthattime,HuabaogaveitaverypoeticThename-SnowLotus.Thebirthofsnowlotusopenedanewerainmycountry'shouseholdairconditionerindustry.Sincethen,Chunlanalsohasitsownhangingmachineproductionline.
Thesecondgenerationofgrillepanelhouseholdairconditioners
Ashouseholdairconditionersgraduallybecomepopular,theirappearanceisalsoquietlychanging.Firstofall,thechangesstartedtosproutfromtheimportedmachinemarket.
Inthe1980s,China’sair-conditioningmarketwasdominatedbyimportedmachines.Evenfrom1991to1995,importedmachinesstillplayedapivotalrole.ImportedmachinesplayedanenlighteningroleinthedevelopmentofChina’shouseholdair-conditioningindustry.Theproductionofmanydomesticbrandsistointroduceaccessoriestoassemble.Thiskindofenlightenmentalsoincludesthechangeoftheappearanceoftheindoorunitofdomesticairconditionerproductsinourcountry.
Inthemid-1990s,importedairconditionersrepresentedbyMitsubishiElectric,Hitachi,Panasonic,etc.appearedinasmallindoorunit.Thisindoorunitchangedfromthepreviouslargeandsolemnimage.Theappearanceisexquisiteandtidy,anditisintegratedwiththehomeenvironmentandiswellreceivedbyconsumers.Withthepopularizationofsuchproductsinmanydomesticair-conditioningfactories,thesecond-generationgrillepanelairconditionerdominatestheair-conditioningmarketandisverypopular.
Fromthefirstgenerationofgrillepanelstothesecondgenerationofgrillepanels,itisanimprovementintheappearanceofhouseholdairconditioners.Thisimprovementnotonlyshowsthereductioninvolumeandthebeautificationofappearance,butalsoItreflectsthechangeofthefoldingtypeoftheindoorunitevaporatorandtheimprovementoftheairconditionersystemcapacity.Itcanalsobeseenfromthisaspectthatthechangeoftheevaporatorfoldingisakeyfactorinthetransformationofthetwogenerationsofgridpanels.Attheendofthe1990s,manycompaniesinvestedalotofmanpowerandmaterialresourcesintheresearchofevaporatorfolding.Mideaalsoappliedforamulti-foldevaporatorpatentin1998.Manyofitsproductsusefour-foldevaporators,whileanotherbrandintheindustrygenerallyusesfive-foldevaporators.
However,fromthefirstgenerationofgrillepanelstothesecondgenerationofgrillepanels,therehasnotbeenabigchangeintheairintakemode,andthecirculatingairpathwithfrontalairinletandairoutletisstilladopted.Ofcourse,thisiswhythegrillepanelistherootofthegrillepanel,andthetechnicalfeaturesdetermineitsappearance.
Theadventoftheopticalpanelera
Openingthenewproductcolorpagesofvariousdomesticfactoriesin2005,abrand-newatmosphereisonthepaper.Comparedwiththemainstreamofgrillepanelsinpreviousyears,mostbrandslaunchedlightpanelseriesofair-conditioningproductsin2005,suchasGree'sTianliseries,Haier'shigh-efficiencyoxygenbarseries,Midea'sQ2seriesandVseries.
Thiscollectivebehaviorofvariousmanufacturersintheair-conditioningindustryhaspushedmycountry'shouseholdair-conditioningproductstotheeraoflightpanels.
Thelightpanelseriesofhouseholdairconditionersdidnotappearforthefirsttimein2005.ThefirstdomesticairconditionermanufacturertolaunchthelightpanelseriesisTCL.
Thesuddenemergenceofcolorpanels
Inthedomesticair-conditioningmarket,introducingcolorintotheair-conditioningpaneldesignandformingatraditionalstyleisthepioneeringworkofKoreanbrandsSamsungandLG.In2002,Samsung’sair-conditioning“style”seriesofnewcabinetsthatyear,colorfulpanelsmadetheentireair-conditioningindustryshine,especiallyunderthe“white”ofotherbrandswithoutexception,Samsung’scolorpanelcabinetsThemachineisparticularlyeye-catching.
Pointstopurchase
Agoodairconditionercanlastfor10years,andthepriceisnotlow.Therefore,buyingairconditionersmustnotbegreedyforcheap.Buyingairconditionersdependsonthequalityoftheproduct:
1.Whethertouseabrand-namecompressor,thecompressoristheheartoftheairconditioner,andagoodheartisofcourseimportant.
2.Whethertousehigh-qualityandhigh-efficiencyheatexchangers,suchashydrophilicmembranetrapezoidalaluminumsheets,internallythreadedcoppertubes,etc.
3.Whethertouseunequal-distancetubularwindblades,largewindwheelsandsteppingmotorstodrivethewindpendulumtoachieveultra-quietdesign.
4.Whetheritissupercooling(heating),quicklyreachthesettemperature.
5.Whethertheappearanceoftheproductisbeautiful,andwhetheritisinharmonywiththehomeenvironment.
6.Forthecooling(heating)capacityoftheproduct,selecttheappropriatecooling(heating)capacityaccordingtotheareaoftheroom.
7.Whethertheproductsaveselectricity,generallyspeaking,thehigherthecooling(heat)capacity,thelowertheinputpower,themoreenergy-savingtheproduct.
8.Thelengthoflife.Whetheritadoptsmicrocomputerfuzzycontroltorealizenon-stopoperationandwhetheritcanautomaticallydefrost.
9.Lookatthenoiseindexoftheproduct.
10.Istherealowvoltageautomaticcompensationfunctionandawidevoltageworkingrange.
Inaddition,whenpurchasinganairconditioner,thefinsoftheevaporatorandcondensershouldbearrangedneatly,theflapsarenotdamaged,andthefinsandthecopperpipearetightlyconnectedandnotloose.Checktheoperationoftheairconditioner,starttheairconditionertoseeifthereisanyabnormalnoiseinthecompressoroperation;thefanrunsnormally,thereisacleardifferencebetweenhigh,mediumandlowspeed,andthenoiseissmall;andtheappearanceisflatandbeautiful,andthequalityoftheplatingpartsisgood.
11.Trytochooselow-carbonairconditionerstoreducecarbonemissions,implementlow-carbonenvironmentalprotection,andprotecttheearth.
Principle
Lookattherightbrand
Therearemanyairconditionerbrandsinthemarket,includingdomesticones,foreignones,andmostofthem.Itsownuniqueadvertisingmakesitdifficultforconsumerstochoose.Itisrecommendedthatwhenpurchasingairconditioners,chooseproductswithstrongcorporatestrength,highbrandawareness,andperfectafter-salesservice.Thisisbasedontwoconsiderations:
Thefirstistoensuretheimplementationofafter-salesservice,becausetheairconditionerisalargehouseholdapplianceandafter-salesserviceisveryimportant.Accordingtorelevantnationalregulations,compressorsshouldbeguaranteedfor3years,andcompetitioninthehomeappliancemarketisalmostfierce.Somemanufacturersoftenhaveashortlifespan,andsomefallwithinthreetofiveyears.Whenacompanyfalls,itspromiseswillnaturallybedifficulttoimplement.Ifyouareblindlygreedyforcheapandbuyproductswithweakerenterprisestrengthandlowbrandawareness,youwillhaveendlesstroubles.
Secondly,thequalityisconsidered,becauseairconditionerswithstrongcorporatestrengthandhighbrandawarenessarerelativelystableinquality.Suchanenterprisenotonlyhasstrongtechnicalforce,butalsoattachesgreatimportancetoquality.Buyingsuchaproductisguaranteedinquality.
Chooseagoodmerchant
Afterconsumershaveselectedanairconditionerbrand,theymustdecidewheretobuy.Whenbuyinganairconditioner,choosingabusinessisparticularlyimportant.Strictlyspeaking,theairconditionerisasemi-finishedproduct.Itcannotbeusedafterbuyingitfromastore,butafterbeinginstalledanddebuggedbyaprofessionalteambeforeitcanbeused.Iftheinstallationanddebuggingarenotgood,itwillbringaseriesofproblems,forexample,theairexhaustisnotclean,thepipeconnectionleaks,andthedebuggingiscausedbyman-madefaults.Thesewillnotonlyaffecttheuseeffect,butalsoaddalotoftroubles.Atthesametime,manyafter-salesservicemeasuresofmanufacturersalsoneedbusinessestoimplementandimplement.Therefore,itisveryimportanttochooseagoodbusiness.
Intheselectionofmerchants,industryinsiderssuggestthat,firstofall,wemustchoosethoselargemerchantswithstrengthandinfluenceinthelocalarea,becausethesemerchantshavemanyvarietiesandsales,andgenerallyhaveprofessionalinstallationandcommissioning.Thequalityoftheinstallationanddebuggingoftheteamisguaranteed,andtheafter-salesserviceisalsorelativelycomplete.Thesecondistochoosethosewhosellairconditionersforalongtime,trynottobuyfromshort-termdealers,becausetheafter-salesserviceofsuchdealerswillbegreatlyreduced.
Purchasearoombyvolume
Theairconditionerisalargeconsumerhouseholdappliance.Iftheselectedpoweristoosmall,itwillnotwork;ifthepoweristoolarge,Wasteagain.Therefore,whenconsumerschoosethepoweroftheairconditioner,theymustpurchasetheroom.
First,don’tbegreedyforbigthings.Someconsumersliketobuylargeairconditioners.Thisisnotadvisable,becauseapartfromsomespecialfactors,householdairconditionershavetheirscopeofuse.Consumersshouldchoosetheairconditionermodelaccordingtotheareaoftheirroomwhenpurchasing.Generally,thecoolingcapacityandheatingcapacityoftheroomcanbecalculatedaccordingtothefollowingformula.Coolingcapacityroomarea×140Wto180W;heatingcapacityroomarea×180Wto240W.Inaddition,itshouldbeappropriatelyincreasedordecreasedaccordingtotheorientationoftheroom,theheightofthefloor,andthedegreeofsealing.
Thesecondistopurchaseflexiblyaccordingtothedesignoftheroom.Don'tbuyalargeairconditionerinthelivingroomtoprotecttheroomlikesomefamiliesdo.Thiswillnotonlymakeitdifficulttoprotecttheroom,butitwillalsocausewaste.Areasonableapproachistobuysomelow-powerairconditionersaccordingtotheroomtype,andmanageeachroom.Inthisway,onthesurface,theinitialinvestmentislarge,butinthelongrun,itisstillcost-effective.Forexample,forasetof110squaremeterswiththreebedroomsandtwohalls,youcanbuyacabinet-type2HPairconditionerinthelivingroom,whichcanprotectthelivingroomanddiningroom,andthebedroomcanbeequippedwithasmallairconditionerof1HP.Thisismorereasonablethanjustbuyingalarge3-hpairconditionerinthelivingroom.
Refrigerationcapacity
TherefrigerationcapacityofairconditionersonthemarketshouldbeexpressedinW(watts),andthemarketoftenuseshorsestodescribetherefrigerationcapacityofairconditioners.Theconversionrelationshipbetweenthetwois:thecoolingcapacityof1horseisabout2000kcal,convertedintointernationalunitwattsshouldbemultipliedby1.162,sothatthecoolingcapacityof1horseshouldbe2000kcal×1.162=2324W.HereW(watts)meanscoolingcapacity,andthecoolingcapacityof1.5horsesshouldbe2000kcal×1.5×1.162=3486W.
Undernormalcircumstances,thecoolingcapacityrequiredpersquaremeterforanordinaryfamilyroomis115-145W,andthecoolingcapacityrequiredpersquaremeterforthelivingroomanddiningroomis145-175W.
Forexample,ifthelivingroomareaofafamilyis15squaremeters,ifyouconsidertherequiredcoolingcapacityof160Wpersquaremeter,therequiredairconditioningcoolingcapacityis:160W×15=2400W.
Inthisway,theKF-25GWsplitwall-mountedairconditionerwith2500Wcoolingcapacitycanbepurchasedaccordingtotherequired2400Wcoolingcapacity.
Theso-calledenergyefficiencyratio,alsoknownasthecoefficientofperformance,istheratioofthecoolingcapacityofanairconditionertoitspowerconsumption.Generally,theenergyefficiencyratioofanairconditioneriscloseto3orgreaterthan3,whichisanenergy-savingairconditioner.
Forexample,anairconditionerhasacoolingcapacityof2000Wandaratedpowerconsumptionof640W,andanotherairconditionerhasacoolingcapacityof2500Wandaratedpowerconsumptionof970W.Theenergyefficiencyratiosofthetwoairconditionersarerespectively:theenergyefficiencyratioofthefirstairconditioner:2000W/640W=3.125,andtheenergyefficiencyratioofthesecondairconditioner:2500W/970W=2.58.Inthisway,bycomparingtheenergyefficiencyratioofthetwoairconditioners,itcanbeseenthatthefirstairconditionerisanenergy-savingairconditioner.
Choiceofthenumberofhorses
Theoutputcoolingcapacity(heat)ofthepurchasedairconditionershouldcorrespondtotheusearea.Duetothedifferenceoftheroomconditionandtheregionalclimateoftheairconditioner,andtheextremeForweatherforecasts,whenbuyingairconditioners,youshouldbuylargeonesinsteadofsmallones.
Therearemanyfactorsthatwillaffecttheheatingeffectoftheairconditioner.Amongthemarethemostimportantfloor,westsun,westwindow,apartmenttype,etc.Howtoaccuratelycalculatetheairconditionerpowerrequiredbytheroom?
First,setthecoolingcapacityrequiredpersquaremeteras150W;
Ifthetopfloorandthewestsunoccupyoneofthem,itwillbecalculatedat200Wpersquaremeter;
IfThereisawestwindoworboththetopfloorandthewestsun,atleast250Wpersquaremeter;
Thereisbothawestwindowandatopfloor,atleast300Wpersquaremeter;
Itcanonlybemore,butnotless.Otherwise,thefixedspeedmachinewillnotstoportheinverterwillalwaysrunatfullspeeduntiltheprotectionisactivated,resultingintheinabilitytoadjusttheroomairtemperature;theareaselectionreferstothefollowingtable
Theroomareaissuitableforairconditioningsize(refrigeration)
10M2Thefollowing23machines(smallonehorse)
10M2-14M226machines(largeonehorse)
14M2-18M232machines(oneandahalfsmaller)
16M2-20M235machine(oneandahalfhorse)
20M2-32M250machine(twoHorses)
30M2-45M261machines(twoandahalfhorses)
45M2-55M275machine(threehorses)
Typeselection
Constantspeedandfrequencyconversion
Homeairconditionersaredividedintofrequencyconversionandfixedspeed.Theabilityofanairconditionerwiththesamenumberofhorsestoadjusttheindoortemperatureisgreaterthanthatofafixed-speedairconditioner.Inverterairconditionersarerelativelycost-effectiveandusemoreenergy-saving.Inaddition,theinverterairconditionercanachieveprecisetemperaturecontrolandprevent"airconditioningdisease"incertainprocedures.
1.Theelectricityconsumptionofthefixed-speedairconditioner:
①Thestart-upcurrentofthefixed-speedairconditionerisseveraltimestheratedcurrent,andthefixed-speedairconditionerisfrequentlyturnedonandoffduringoperation,whichconsumeselectricity.
②Thefixed-speedairconditionerkeepsheatingattheratedhighpowerduringoperation.Aftertheroomtemperaturerisestothesettemperatureoftheairconditionerplus1degree,theairconditionerstops.Aftertheairconditionerstops,whentheroomtemperaturedropstothesettemperatureoftheairconditionerminus1degree,theairconditionerstartsagain,andthecyclerepeats.Thesamegoesforrefrigeration.
③Thefixed-speedairconditionerhasinsufficientheatingcapacityinwinter,withelectricauxiliaryheatingelements,andtheenergyefficiencyratioisonly1.Theelectricauxiliaryheatingpowerofthefixed-speedairconditioneris1~2kW,whichconsumeselectricity.
2.Powersavingofinverterairconditioner:
①Thestartupofinverterairconditionerissoftstart,noinrushcurrentandnowasteofelectricity.
②Theinverterairconditionerfirstrunsathighfrequencytoincreasetemperatureduringoperation.Whentheroomtemperaturereachesthesettemperatureoftheairconditioner,theairconditionerchangestolowfrequencyoperationandkeepswarmwithoutshuttingdown.Thepowerconsumptionofcontinuouslow-frequencyoperationisonlyone-thirdorevenone-fourthoftheratedpower.Thesamegoesforrefrigeration.
③Inverterairconditionersdonothaveelectricalauxiliaryheatingelementsthatconsumealotofelectricity.
Tosumup,thecontinuouslow-frequencyoperationoftheinverterairconditionerhasneitherfrequentstart-upinrushcurrentnorlong-termhigh-poweroperationlikethefixed-speedairconditioner,andthereisnoelectricauxiliaryheatingelementthatconsumeselectricity.Therefore,inverterairconditionersaremoreenergy-savingandelectricity-savingthanfixed-speedairconditioners.
Refrigerationsettings
Fromthesummerairconditioningstart-upindex,30-33℃islevel4,and70%ofpeopleneedtoswitchiton;33-35℃Itbelongstolevel5,and90%ofpeopleneedtoswitchonit.Afterturningontheairconditioner,payattentiontoadjustingthetemperaturedifferencebetweenindoorandoutdoor.
Iftheoutdoortemperatureis32degrees,theindoorairconditionerisgenerally25degrees.
Whentheairconditioneriscooling,thesettingtemperatureisabout26-28℃.Inthiscase,notonlythehumanbodyfeelsmorecomfortable,butalsoitisconducivetoenergysaving.Whentheairconditioneriscooling,donotsetthetemperaturetoolow.Whentheroomtemperatureisadjustedto26-27degrees,thecoolingloadcanbereducedbymorethan8%.Experimentshaveshownthat,undernormalcircumstances,theroomtemperatureismaintainedat28-29degrees,andthehumidityismaintainedat50-60%.Peopledonotfeelstuffyorsweat,whichbelongstothecomfortrange.Whenapersonsleeps,themetabolicrateisreducedby30-50%,andtheairconditionercanbesettothesleepswitchposition,andthetemperaturecanbesetto1degreehigher,whichcansave10%ofelectricity;
heatsetting
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Thebesttemperaturesettingforairconditioninginwinteris20℃.Amoderateindoortemperatureisnotonlygoodforyourhealth,butalsoavoidsoverloadingtheairconditioner.Whenheating,usealowwindshieldjustafterstartingup,andswitchtoamediumwindshieldafterhalfanhour.Forfriendswholiketoincreasetheindoortemperature,pleasebecarefulnottosetthetemperatureattheextreme30℃thattheairconditionercanwithstandinwinter,otherwiseitwillcausetheairconditionertostartfrequentlyornotstop,increasethepowerconsumption,andevendamagetheairconditionercompressioninseverecases.machine.Sincetheheatingflowislighterthanair,itiseasytofloatabovetheentireenclosedroom.Whenusingawall-mountedairconditioner,itisbesttoadjusttheairoutlettoadownwardangle,whichcansaveelectricity.
Setcarefully
Theairconditionertemperaturesettingmustbekeptwithinareasonabletemperaturerange,thatis,itshouldbe26℃～28℃insummerandinwinter.18℃～20℃.Theair-conditioningtemperaturecannotbetoodifferentbetweenindoorandoutdoor,generally5℃～10℃.Ifthetemperaturedifferenceistoolarge,youwillexperiencesuddenchangesintemperaturewhenenteringandexiting,andyouwillbepronetocoldsandotherdiseases.
Installationlocation
Generalairconditioninginstallationlocationshouldavoidheatsources,hotairremovalandnoiseinterferenceshouldnotaffectneighbors.Theinstallationheightoftheoutdoorunitshouldbelowerthanthatoftheindoorunit,whichisconducivetothecirculationofrefrigeratingoil.Theoutdoorunitshouldbeinstalledwithoutshortcircuitcirculationofhotair,soasnottoaffectheatdissipation:theinstallationlocationshouldbeconducivetomaintenance,easytodrainandnotaffectpedestrians,avoidorstayawayfromhigh-voltagelines,placeswithradiation,andflammableandexplosiveplaces.Thereshouldbenoobstructionsinfrontoftheindoorunit,andthejetdistanceofthecoldair(orhotair)shouldbeensuredtomaketheindoortemperaturemoreuniform.
Maintenance
Maintenancebeforeturningon
Usually,householdairconditionerswillbeturnedoffinSeptemberandwillbedisableduntilthefollowingyear.ItwasturnedononlyfromMaytoJune,anditwasoutofserviceformorethanhalfayear.Therefore,beforeturningontheairconditioner,acomprehensive"diagnosis"mustbedonetocheckwhethertheairconditioneris"faulty".Accordingtotheresultsoftheinventory,undertheguidanceofprofessionalandtechnicalpersonnel,doagoodjobofmaintenanceandcleaning.Thistime,themaintenanceandcleaningshouldbemoreinplace.Includingthecasing,body,andfilteroftheoutdoorunitandtheindoorunit,andthenstarttrialoperationtoobservethecoolingspeedandeffect.
DuringthestartupprocessMaintenance
Aftertheairconditioneristurnedon,itdependsontheenvironmentalManyfactorssuchasaircleanlinessandroomcleanlinessdeterminethenumberofmaintenanceduringtheairconditionerstartupprocess.Theenvironmentalconditionsarepoor,theweatherishot,theairconditionerisoutdated,theairconditioneristurnedonforalongtime,andthenumberofmaintenanceduringtheairconditionerisincreased,usuallyaboutonceamonthandahalf.Iftheenvironmentalconditionsaregood,theairconditionerisrelativelynew,thereislessdustintheair,andtheairconditioneristurnedonreasonably,andalternatelyusedwiththeelectricfan,themaintenancecyclecanbeextendedappropriately,fromtheairconditionerontotheairconditionershutdownfor1-2maintenance.Maintenanceshouldbeseriousandcareful,leavingnodeadends.Itconformstothestandard,improvesthecoolingspeedandcoolingeffect,andachievesenergysaving,freshnessandcomfort.
Maintenanceaftershutdown
Theweatherturnswarmer,theairconditionerturnson,theweatherturnscooler,andtheairconditionerturnsoff.Thisisaperennialrule.Notethattheoutdoorunitandindoorunitshouldbethoroughlyinspectedbeforetheairconditioneristurnedoff.Maintenance,maintenance,andcleaningshouldbelinkedtoeachother,andshouldnotbedisconnected.Theleak-pronelinksshouldbefastenedandstrictlyinspected.Aftercompletingtheabovelinks,putontheairconditionerhoodtopreventdustpollutionandpreventtheairconditionerfromdrippingandwateringress.Keepitcleanandpreparetouseitagaininthecomingyear.Doingsowillclean,saveenergy,andextendtheservicelifeofair-conditioningequipment.Forthehigh-qualitysplitmachinesofwell-knownbrands,thecabinetsmustbeprotectedtogivefullplaytotheenergy-savingeffect.
Maintenanceofairconditioningduringgeneralhours
1.Removedebrisfromtheventstoensurenormalventilation.Observewhethertheoutdoorrackisloose,andcleantheoutdoorventilationgrilleforforeignobjects.Atthesametime,keeptheventsunobstructed.
2.Surfacecleaningofindoorandoutdoorheatexchangersimprovestheefficiencyofheatexchangers.Whencleaningtheindoorheatexchanger,youshouldcarefullyremovethepanel,scrubwithasoftcloth,anduseasmallbrushtogentlyscrubtheinternalheatexchanger,soastoachievethepurposeofremovingdustandharmfulaccumulationsthatcanbreedgerms.Butnotethatbecausetheheatsinkisathinaluminummaterial,itiseasytodeformafterbeingstressed,sobecarefultobrushit.
3.Cleanthedustonthefilter.Whencleaningthefilter,firstcutoffthepowersupply,thenopentheairinletgrill;takeoutthefilter,cleanthefilterwithwateroravacuumcleaner,thewatertemperatureshouldnotexceed40degrees,cleanwithahotdampclothorneutraldetergent,andthenwipewithadryclothAtthesametime,thefilterscreencannotbecleanedwithinsecticidesorotherchemicaldetergents.
4.Cleanthedirtandaccumulationinthedrainagepart.Thedrainagepartiseasytodepositdirtandmustbethoroughlydisinfectedregularlytoensureunobstructeddrainageandpreventbacterialgrowth.
5.Checkother.Includingpowersupplylines,plugboards,switches;checktheconditionofwearingparts,suchaswinddeflector,sterilizationanddehumidification,photocatalyst,etc.,toensurethattheairconditionerisingoodconditionandnoabnormalities.
SpecialperiodairconditioningMaintenance
InthemoderatetemperatureseasonsfromMarchtoMayandSeptembertoNovember,peoplegenerallyLeavetheairconditionerinanon-workingstate.Intheseasonwhentheairconditionerisnotinuse,thepowersupplyoftheairconditionershouldbecutofffirst,butitisbesttokeeptheusageamountonceamonthtopreventthelubricatingoilinthemachinefromcondensingifitisnotusedforalongtime.Atthesametime,inordertoensurethelong-termhigh-speedoperationoftheairconditionerandtheextensionofthemission,itisnecessarytopayattentiontothepropermaintenanceoftheairconditionerwhentheuseoftheairconditionerissuspendedorstarted.
1.Aftertheendoftheseasonofuse.Beforestoppingtheairconditioner,youcansettheairconditionertotheairsupplystateinasunnyday,andturnitonforabouthalfadaytocompletelydrytheinsideoftheairconditioner.Atthesametime,thedustfilter,indoorunit,andoutdoorunitshouldbecleaned.
2.Beforethestartoftheseasonofuse.Checkthattheairinletandoutletoftheindoorandoutdoorunitsarefreeofobstructionstoavoidreducingtheworkingefficiencyoftheairconditioner;installadustfiltertoavoiddamagetothemachineorcausemalfunctionduetodustenteringthemachine;dryclothshouldbeusedtocleantheremotecontrol.Donotuseglasscleanerorclothcontainingchemicalsubstances.Aftercleaning,installtwonewbatteriesofthesamemodel.
Cleaningmethod
Thecleaningoftheairconditionershouldincludethreeparts:
First,theairconditionerbodyshellandexposedparts,whichareeasilycontaminatedparts;
Second,filtercleaningisthemostimportantpartofthecore;
Third,thecondenserandevaporatorarerelativelyrare,combinedwithmaintenance,whichisequivalenttothesmallsystemCleaningisarelativelylarge"surgery",andthereareoftenobsoleteairconditionersor"specialprices"or"inferiorqualitymachines".Mostofthistypeofairconditionershavenocleaningandmaintenancevalue,andwillnotbedescribedindetail.
Thecleaningoftheairconditionerbodyshellandcorrespondingpartsissimple.Justaddalittlesoappowderanddetergentorspecialairconditionercleaningfluidtocleanaconsiderablepartoftheairconditioner,whichmeetsthecleaningoperationrequirements..
Asforthecleaningofthefilter,thekeypartofhouseholdairconditionercleaningisthecleaningofthefilter.First,opentheindoorcoveroftheairconditioner,takeoutthefilter,andbrushwithacleanfilterbrushtoremovemostofthepartsattachedtothefilter.Brushthedirt,andthensoakitinaspecial-effectairconditionercleaningfluidorhomemadecleaningfluidoramixtureofdetergentandsoappowder.Theimmersiontimeis10-20minutes,dependingonthedirtinessofthefilter.Usethebottleaftersoaking.Brushthefilterscreengentlytomakeeachfilterholeclearandtransparent,withouttracesofdirtandblockage,andthendryitwithaspecialcleaningclothtocheckthatitisintact.Afterthefilterscreenisinstalledinthebody,itcanbeseenwhetheritisoperatingnormally.Ifitisnormal,theordercanbesignedforacceptance,andthecleaningworkisover.
Householdairconditionercleaningisbeneficialtoimproverefrigerationefficiency;itisbeneficialtoimprovetherefrigerationeffect,whichisbeneficialtoextendthelifeofhouseholdair-conditioningequipment,isbeneficialtoimproveenergy-savingeffects,andisbeneficialtothehealthofusers.Theeffectishealthierthan"healthyairconditioners".Moreideal.
Yearsofpracticeintheair-conditioningindustryhaveproventhatair-conditionersarebestcleaned2-3timesayear.Usuallytheairconditioneriscleanedoncebeforestartingup,onceinthemiddleofthetimewhentheairconditioneristurnedon,andoncewhentheairconditioneristurnedoff.Thisismorereasonable.Sometimeswhentheairconditioneristurnedoff,afteramajorcleaningprocesssuchasmaintenance,maintenance,andcleaning,theairconditioneriscoveredwithahood,anditwillberelativelycleanwhenitisturnedoninthenextyear,andthefilterisalsoclean.Cleaningtwice,theeffectisverygood,savelaborandexpenses,reduceoperatingcosts,anddonotaffectthecoolingeffect.
Precautions
1,thepowersupplyvoltageshouldnotfluctuatetoomuch(±10%fluctuationsareallowed),andtheairconditionershouldbepoweredbyadedicatedline,usingasingle-phasethree-holesocket,andaplugInserttotheend.
2.Thehousingoftheindoorunitshouldbecleanedfrequently.Generally,itcanbewipedwithacleandryclothorwipedwithaneutraldetergent.Itisabsolutelynotallowedtorinsewithwaterdirectly.Carryoutafterpowerfailure.
3,theindoortemperatureshouldnotbeadjustedtoolow,otherwiseitwillbeharmfultothehumanbody,andthesettemperatureshouldbeadjustedappropriately.
4,ifyoufeeltheroomtemperatureistoohigh,youcanappropriatelylowerthesettemperature.
5.Effectiveuseoftimerscanachievebothenergy-savingandcomfortableeffects.
6.Thereshouldnotbetoomanypeopleintheair-conditionedroom,overcrowded,otherwisethecoolingcapacitywillappearinsufficient,andthetemperaturewillbedifficulttodrop;
7.Inordertoavoidlossofair-conditioning;
8,theglasswindowsmustbeclosedandtightly,anddoublewhitecurtainsmustbehunginsidetoreflectpartofthelightandheatthatpenetrates;
9,indoorventilationThewindowcanbeopenedforashortperiodoftime,andthewindowopeningtimeisgenerallynomorethan10minutes;
10,theairfiltershouldbecleanedregularly,otherwisetheairflowwillbeblocked,resultingininsufficientairvolumeandincreasedroomtemperature;
11,adjustthetemperatureduringsleep,theairconditionercanautomaticallyadjustthesleeptemperature;
12,theoutdoorunitmustbeinstalledfirmlytoreducevibrationandnoise,andthecondensermustbekeptinfrontofthesuctionandexhaustventsThereisenoughspaceforventilation.Ifthewindisblocked,thecondensingpressurewillincreaseanditwillcauseshutdown;
13,thereshouldbenoobstaclesinfrontoftheindoorunit,otherwisethewindwillbeaffected;
14.Whentheairconditionerisrunningforrapidcooling,theselectorswitchcanbeadjustedtothehighgear,andafterthetemperaturedrops,itcanbeadjustedtothemediumspeedandlowgear;
15,thewindowairconditionercanbeusedforventilationVentilationswitch,buttheventilationtimedoesnotexceed15minutes;
16,toomuchdustontheoutdoorradiatoroftheairconditionerwillreducetheefficiency,andtheoutdoorradiatorshouldbecheckedandcleanedregularly(afterapowerfailure,Itcanbeblownwithcompressedair);
17,theoutdoorunitofsplitairconditionercannotbeinsertedwithsticks,otherwisethefanwillbestuckordamaged;
18,whenyoufeeltheairconditionerWhenthedeviceisnotusedsatisfactorily,pleaserefertotheinstructionmanual,analyzewhetheritiscausedbyimproperuse,andcorrectitafterfindingoutthecause;
19,ifthefaultisfoundandcannotbedealtwithbyitself,youcanseekprofessionalmaintenancefromtheoriginalinstallationdepartmentThetechniciancansolveit,orcontactthelocalservicepersonnelofthebrandcompany,donotrepairitbyyourselforfindnon-professionals;
20,theairconditionershouldbeunpluggedintimewhenitisnotinuse;
21.Aftertheairconditionerisstopped,itmustberestartedafterthreeminutestoprotectthecompressor;
22,theairconditionerwitharemotecontrol(shouldnotbeplacedwherechildrencaneasilyreachit)shouldnotbeusedduringuseOperateasatoybychildrentoavoiddamagetothemachine.
Anewtypeofairconditionerthatcancontinuouslyadjustthefrequencyorspeedofthecompressorwithinacertainrangetochangetheflowoftherefrigerant,andexerttheabilitytobestmatchtheenvironmentalconditionsandautomaticallyadjusttheoutput.Inverterairconditionersusedigitalsignalprocessingandanalogcontrolcombinedwithartificialintelligencecontrol.Comparedwithordinaryairconditioners,inverterairconditionershavetheadvantagesofrapidcoolingandheating,highefficiencyandenergysaving,comfortandreliability,intelligentdefrosting,largedehumidificationcapacity,ultra-quiet,andwide-voltageoperation.
Failurejudgment
Commonfailurephenomena
Dirtyblockageandiceblockageoftherefrigerationsystem;airfiltrationThedeviceisblocked;theairinletandoutletareblockedbyobstacles,etc.
Thewindingsofthemotor,thewindingsofthefanmotor,solenoidvalvecoils,relaycoilsandcontactswereburned.
Thefanisstuck,thebearingofthemovingpartisstuck,etc.
Faultjudgmentmethod
Thebasicmethodofjudgingcommonfaultsofhouseholdairconditionersis:look,listen,touch,Measureandanalyze.
1.Look:Carefullyobservetheworkingconditionsofeachcomponentoftheairconditioner,focusingonthethreepartsoftherefrigerationsystem,electricalsystem,andwindsystemtodeterminewhethertheyareworkingproperly.
Refrigeratingmachineoil,youcanalsouseacleansoftclothorsoftpapertowipethepipeweldingandjointconnections,andobservewhetherthereisanyoilstainstodeterminewhetherthereisleakage.
2.Listen:Turnonthepowerandlistencarefullytoseeiftheairconditionercompressorisrunningnormally,ifthereisanyabnormalnoise,ifthefanisrunningnoisy,ifthenoiseistooloud,etc.Duringtheoperationoftheairconditioner,undernormalcircumstances,thevibrationisslightandthenoiseissmall,generallybelow50DB.Ifthevibrationandnoisearetooloud,thepossiblereasonsare:
Foamplasticcushions,etc.,canmaketheairconditionermorevibrateandnoiseduringoperation.Especiallywhenitisjuststartedandstopped.
Ifthechassiscollides,thefan’saxiswillmove,andthebladeswillbeoutofbalance.Therewillalsobeacrashingsound;ifthereisaforeignobjectinthefan,thebladeswillalsohaveacrashingsoundwhentheytouchit..
3.Touch:Touchtherelevantpartsoftheairconditionertofeeltheheat,cold,andtremor,etc.,whichishelpfultojudgethenatureandlocationofthefault.Undernormalcircumstances,thetemperatureofthecondensergraduallydecreasesfromtoptobottom,andthetemperatureofthelowerpartisslightlyhigherthantheambienttemperature.Iftheentirecondenserisnothotortheupperpartisslightlywarm,oralthoughitishotbutthereisasignificantdifferenceintemperaturebetweentheupperandloweradjacentpipes,itisabnormal.Theevaporatorwillfeelcoldandstickyifyouputafingerdippedinwateronthesurfaceoftheevaporatorundernormalconditions.Thecapillarytubeatthedryerandoutletshouldhaveawarmfeelingundernormalconditions(alittlehigherthantheambienttemperature,andbasicallythesameasthetemperatureofthepipeattheendofthecondenser).Etc.arenotnormal.Thetemperatureofthesuctionpipe200mmawayfromthecompressorshouldbesimilartotheambienttemperatureundernormalconditions.
4.Measurement:Inordertoaccuratelydeterminethenatureandlocationofthefault,itisoftennecessarytouseinstrumentsandmeterstocheckandmeasuretheperformanceparametersandstatusoftheairconditioner.Forexample,usealeakdetectortocheckforrefrigerantleakage;useamultimetertomeasurewhetherthepowersupplyvoltage,thegroundcurrentofeachterminalandtheoperatingcurrentmeettherequirements,andtheairconditionercontrolledbythecomputershouldalsomeasurewhetherthepotentialofeachcontrolpointisnormal.
5.Analysis:Mostoftheresultsobtainedthroughtheabove-mentionedinspectionmethodscanonlyreflectacertainpartialstate.Thevariouspartsoftheairconditionerarerelatedtoeachotherandaffecteachother.Onefailurephenomenonmayhavemultiplereasons,andonereasonmayalsocausemultiplefailures.Therefore,acomprehensivecomparativeanalysisoflocalfactorsisrequiredtodeterminethenatureandlocationofthefaultcomprehensivelyandaccurately.
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