SectionFive

Unit16:HowtoCleaningRoomAirConditionerUnit17:RefrigerantLeakDetectionUnit18:DuctCleaningUnit16:HowtoCleaningRoomAirConditionerNewWords&ExpressionsTextNotestothe

TextExerciseNewWords&Expressionsexertvt.竭力，努力,

運(yùn)用,發(fā)揮,施加debris

n.散落的碎片,垃圾；廢棄物vegetation

n植物(總稱)，植被,植物群落,草木migratevi.

遷移;移往vacuumcleaner吸塵器

detergentn.洗滌劑，去垢劑，洗衣粉

screwdriversn.螺絲刀，螺絲起子，改錐

grill

n.vt.&vi.

格板,格柵；拷問(wèn),盤問(wèn)NewWords&Expressions材料，基本特征；把…裝進(jìn)disposableadj.一次性的sinkn.vt.&vi.

水池,水槽；

(使)下沉;(使)沉沒(méi)sprinklevt.&vi.灑,撒；n.少量,少數(shù),

小雨laundrydetergent洗衣粉rinsevt.n.沖洗,

洗刷;

染發(fā)劑cowlingn.飛機(jī)引擎罩motorn.adj.馬達(dá)，

汽車;

有引擎的stuffn.vt.Text

大多家用空調(diào)有的部件在室內(nèi)，有的部件在室外，但是又都不是全部在室內(nèi)或全部在室外。外部部件主要受到天氣和外部環(huán)境的影響，室內(nèi)部件主要受到灰塵影響。Mostroomairconditionersareeitherexposedtoindoororoutdoorconditions,butnotboth.Foroutsideelements,theyareaffectedbytheweatherorenvironment.Ontheotherhand,thedustexertagreatinfluenceontheinsideelements.Text

空調(diào)中的雜質(zhì)會(huì)降低效率和加速外殼腐蝕。有時(shí)候，空調(diào)會(huì)發(fā)展到很嚴(yán)重的地步需要徹底清洗。霉菌會(huì)在設(shè)備單元中滋生，贅生物也會(huì)向外殼方向遷移。另外，機(jī)器的壽命主要取決于它如何使用。所以，如果家用空調(diào)經(jīng)常清洗的話，壓縮機(jī)的壽命就會(huì)延長(zhǎng)。保持空調(diào)清潔高效并不費(fèi)力卻能省電，這很值得一做。Debrisintheairconditionercanreduceefficiencyaswellasacceleratecorrosionofthesteelhousing.Sometimesairconditionersappearveryseriousconditionsandneedtobecleanedthoroughly.Moldcandeveloparoundtheunit,orvegetationmaymigratetowardsthehousing.Inaddition，theservicelifeofamachinedependschieflyuponhowitisbeingused.1Well,thelifeofacompressorwillextentwhenroomairconditioneriscleanusually.Keepinganairconditioningunitcleanandefficientcantakealittleextraeffortbutthesavingsinelectricitywillbeworthit.2

Text

保持空調(diào)高效運(yùn)轉(zhuǎn)的兩個(gè)關(guān)鍵因素是確保室內(nèi)外盤管的氣流量合適且確保盤管干凈。盤管潔凈傳熱高效，壓縮機(jī)運(yùn)轉(zhuǎn)會(huì)減少。清洗過(guò)程需要以下工具：真空吸塵器、長(zhǎng)柄刷子、抹布、清洗劑、可選擇性螺絲刀、新過(guò)濾網(wǎng)（可選擇）等。Thetwokeyfactorstokeepanairconditionerrunningmostefficientlymakesureithastheproperamountofairflowovertheindoorandoutdoorcoilsandkeepingthecoilsclean.3Cleancoilstotransferheatmoreefficiently,sothecompressormayrunless.Cleanprocessneedsometools,suchasvacuumcleaner,longhandledbrush,rags,detergent,selectionofscrewdrivers,newfilter((optional),etc.Text

首先，空調(diào)清洗過(guò)程必須切斷電源。其次，把前面的格板取下。一般可以直接取下，但是有時(shí)候也會(huì)有螺絲固定。取下過(guò)濾網(wǎng)要么清洗要么更換。如果是一次性的，更換一個(gè)新的即可。另外一種類型是塑料結(jié)構(gòu)或泡沫薄片，這一種可以清洗后再使用。清洗時(shí)，平置，用清洗劑浸泡或在上面噴灑。然后放在溫水中，溫水量能淹沒(méi)濾網(wǎng)即可。浸泡15分鐘后取出并用溫水漂洗。最后懸掛晾干，這期間可以做后面的工序。Firstofall,airconditionercleaningoperationmustbeshutdown.Secondly,takethefrontgrilloff.Removeddirectly,butsometimestherearescrewsthatholditinplace.Removethefilterandeithercleanitorreplaceit.Ifitisadisposabletype,simplyreplaceitwithanewone.Othertypesaremadeinaplasticframeorfoampiece，whichcanbecleanedandreused.Tocleanareusabletype,layitflatinthesinkandsprinklesurfacewithlaundrydetergent.Thencoverwithwarmwater.Justenoughtothefilterissubmerged.Soakfor15minutesorsoandremovefromwaterandrinsewithwarmwater.Hanguptodrywhileproceedingtonextstep.Text

接下來(lái)，用軟刷子上下移動(dòng)清除翅片上的表面灰塵（蒸發(fā)器）。不要來(lái)回清掃把翅片弄彎，因?yàn)槌崞苋菀讚p壞。一旦表面灰塵去除后，噴灑一些去脂劑。然后，重復(fù)上面的步驟，清洗冷凝器盤管。一般冷凝器翅片都有塑料罩。如果是這樣，檢查頂部是否可以抬起或打開(kāi)。如果可以就很容易接觸到冷凝器翅片。注意：冷凝器盤管中充滿高壓制冷劑。Next,removesurfacedustanddirtfromthefins(evaporator)withasoftbrushupanddownmotion.Donotgosidetosideorallowthefinstobebentover，becausetheycanbedamagedeasily.Oncesurfacedirtisremoved,spraywithde-greaser.Then,repeatabovestepforthecondenser(rearfins)coil.Aplasticcowlingusuallysurroundsthecondenserfins.Ifso,checkthetopedgetoseeifitwillliftoropen.Ifitopens，thiswillalloweasieraccesstothecondenserfins.Againusecautionbecausethecondensercoilisalsofilledwithhighpressurerefrigerant.Text

最后，必須確?？照{(diào)的風(fēng)扇電機(jī)千萬(wàn)不能沾水。當(dāng)然，清洗電氣部件都不能打開(kāi)其絕緣和保護(hù)材料。總之，要所有部件都晾干后才能啟動(dòng)，尤其是風(fēng)扇電機(jī)或電氣部件沾水后。Last,airconditionerfanmotorisnotwater,youcanbeassured.Ofcourse,cleaningelectricalpartsyoucannotopentheisolationoftheprotectiveplatestufflike.Overall,letanyunitdrybeforestartingit，especiallyifthereisanychancethatwatergetinthefanmotororonelectricalcomponents.NotestotheTextNotestotheText

1.Inaddition，theservicelifeofamachinedependschieflyuponhowitisbeingused.How引導(dǎo)的從句做介詞upon的賓語(yǔ)，theservicelife表示及其或設(shè)備的“壽命”，dependupon（on）表示“依靠、憑借”，類似的句子有：

Successdependsonchance.成敗在于機(jī)遇。NotestotheText這個(gè)句子的結(jié)構(gòu)很簡(jiǎn)單，謂語(yǔ)是willbe，表語(yǔ)是worthit，前面所有的部分Keepinganairconditioningunitcleanandefficientcantakealittleextraeffortbutthesavingsinelectricity都是主語(yǔ)，是主語(yǔ)從句，表示保持空調(diào)機(jī)清潔高效會(huì)費(fèi)一點(diǎn)額外的力，但是會(huì)節(jié)電，這很值得一做。2.Keepinganairconditioningunitcleanandefficientcantakealittleextraeffortbutthesavingsinelectricitywillbeworthit.NotestotheTextThetwokeyfactors是主語(yǔ)，tokeepanairconditionerrunningmostefficiently是不定式結(jié)構(gòu)做定語(yǔ)，修飾主語(yǔ)factors，ithastheproperamountofairflowovertheindoorandoutdoorcoilsandkeepingthecoilsclean.是賓語(yǔ)從句，做謂語(yǔ)makesure的賓語(yǔ)。makesure是謂語(yǔ)，表示“確保，保證”，類似的句子有：Beforegoingout,shemadesureallthewindowswereclosed.外出之前，她先查看所有的窗戶是否都關(guān)好。3.Thetwokeyfactorstokeepanairconditionerrunningmostefficientlymakesureithastheproperamountofairflowovertheindoorandoutdoorcoilsandkeepingthecoilsclean.ExerciseDecidewhetherthefollowingstatementsaretrue(T)orfalse(F)accordingtothetext:1.Th