登峰制冰機原理（Ice-O-Matic 方冰機培訓）

WelcometotheIce-O-Matic?on-linetrainingmodules歡迎光臨Ice-O-Matic?

方冰機培訓ICESeries?30”CuberSequenceofOperationsICE0250-ICE1006ThismodulewillcovertheSequenceofOperationsfortheICESeries30”wideModularCubersfromtheICE0250throughtheICE1000lCubersICE系列30”寬度方冰機操作步驟ICE0250-ICE1006本次培訓能夠包括ICE系列30”寬的方冰機(從ICE0250到ICE1000)所有的操作步驟30”ModularUnitsICE/OFF/WASHSwitchTheunitbeginsoperationwhentheICE/OFF/WASHSwitchisturnedtotheICEposition.TheCompressor,WaterPumpandCondenserFanMotor,whereapplicable,areenergized.TheIce-O-MaticaircooledunitsuseaFanCyclingControl,sotheFanMotorwillstartwhentheheadpressurereaches250pounds.制冰/關(guān)閉/清洗開關(guān)如果把制冰/關(guān)閉/清洗開關(guān)撥到制冰位置,制冰機就會啟動.壓縮機/水泵/冷凝器冷卻風機在需要的時候就會啟動.Ice-O-Matic風冷式制冰機使用了冷凝器風機控制系統(tǒng),所以在高壓達到250PSI時風機就會啟動LPTI,TimerandRelay低壓控制器/計時器/繼電器R-1RelayCoilR-1RelayLowPressureTimerInitiateControlSolidStateTimerDelay固態(tài)時間計時器FreezeCycleControls制冰周期控制Ice-O-MaticutilizesaLowPressureTimerInitiateandaTimerModuletoControlthelengthofthefreezecycle.TheTimerInitiateclosesonpressuredrop,sendingpowertotheTimerModule.TheTimerModulethencontinuesthefreezecycleforthelengthoftimeitissetfor,thencloses.ThissendspowertothecoilofRelay1,startingthedefrostcycle.R-1繼電器低壓計時器啟動控制Ice-O-Matic制冰利用低壓計時器啟動和一個計時器模塊來控制制冰周期的時間長度.當壓力降低到規(guī)定值時,計時器會啟動并開始計時一直到預先的設(shè)定值后關(guān)閉.計時器關(guān)閉后R-1繼電器工作開始化霜循環(huán).DefrostCycleControl化霜周期的控制HarvestAssistAssemblyOnceindefrost,theHarvestAssistAssemblyisincontrolofthelengthofthedefrostcycle.輔助推冰組件一旦進入化霜周期,輔助推冰組件會控制化霜周期的時間TimerInitiate計時器的啟動TheLowPressureTimerInitiatecontrolswhatisknownastheuntimedportionofthefreezecycle.ThisallowsabasecourseoficetodevelopontheEvaporator.低壓控制器啟動的時間是在制冰周期中一部分,它是不定時,是按照冰在蒸發(fā)器上形成的狀態(tài)而定的.TheLowPressureTimerInitiateclosesonpressuredrop,energizingtheTimerModule.當壓力降低到設(shè)定值后低壓控制器啟動時間器模塊.LowPressureTimerInitiateTimerInitiateTheLowPressureTimerInitiateislocatedintheCompressorCompartmentbehindtheControlBox.SeeyourTechnicalManualforsettingoftheControlforeachunitandformoreinformationontheuntimedfreezecycle.低壓控制器低壓控制器位于壓縮機機械室內(nèi)控制箱后部,關(guān)于如何設(shè)定控制壓力請參看服務手冊.BridgeThicknessAdjustment冰橋厚度的調(diào)節(jié)3/16”BridgeThicknessonICE0250,and1/8”BridgeThicknessonallothers.TheTimerModulecontrolsthetimedportionofthefreezecycle.Itshouldbesettoachievean1/8”bridgeacrossthemiddleoftheEvaporator.ICE0250機型的冰橋厚度是3/16”其它機型的冰橋厚度是1/8”計時器模塊調(diào)整的時間是部分的制冰周期時間,它應該被調(diào)整到蒸發(fā)器中部的冰橋厚度達到規(guī)格值.ElectricalSystem電器系統(tǒng)TIMERMODULETheTimerModuleislocatedonthebackwalloftheControlBox.OncetheTimercloses,itenergizesthecoilofRelay1,thenormallyopencontactsoftherelaythenclose,energizingthedefrostcomponents.SeeyourTechnicalManualformoreinformationonthetimedfreezecycle.計時器模塊計時器模塊位于電器控制盒的后部,當時間到達設(shè)定值時,計時器會啟動繼電器1,繼電器會啟動相應的化霜的部件.化霜的部件.如果需要了解更多關(guān)于制冰周期時間的信息,請參看服務手冊.ContactorRelay1Relay2PurgeSwitchSelectorSwitchPotentialRelayStartCapacitorRunCapacitorElectricalSystem電器系統(tǒng)Relay1islocatedintheControlBox.Intheseunits,Relay1isalwaysthetoprelay.壓縮啟動繼電器接觸器壓縮機啟動電容排水開關(guān)功能選擇開關(guān)繼電器1繼電器2繼電器1位于電器控制盒內(nèi),在這個系列中,繼電器1總是在位于上部的那個繼電器WaterSystem水系統(tǒng)PurgeValveWaterPumpAtthebeginningofthedefrostcycle,theunitpurgesthemineralladenwaterfromtheWaterTroughviathePurgeValve.泄水閥水泵在化霜周期開始時,制冰機會把含有礦物質(zhì)的水從水槽中通過泄水閥排出.WaterSystem水系統(tǒng)ThePurgeValveislocatedbehindtheWaterPumpintheCompressorCompartment.泄水閥位于水泵后部的壓縮機機械室內(nèi).HarvestAssist輔助推冰系統(tǒng)UpontheclosingofthenormallyopencontactsofRelay1,TheHarvestAssistAssemblycontrolsthedefrostcycle.當常開的繼電器1關(guān)閉時,輔助推冰系統(tǒng)控制化霜周期HarvestAssist輔助推冰系統(tǒng)CamSwitchClutchProbeShaftLetsexaminetheoperationoftheHarvestAssistAssembly.ThisslideshowsthecorrectpositionofHarvestAssistwhentheunitisinthefreezecycle.TheswitchthatridestheedgeoftheClutchisknownastheCamSwitch.Itisasinglepole,doublethrowswitch.Wheninthisposition,thecontactsarenormal.Thenormallyopencontactsareopenandthenormallyclosedcontactsareclosed.讓我們了解一下輔助推冰系統(tǒng)的運作.這張幻燈片顯示的是在制冰周期時的正確位置.靠在凸輪邊緣的那個開關(guān)叫凸輪開關(guān).它是一個單刀雙擲開關(guān).在這個位置時,開關(guān)的正常的,常開點是開著的,常閉點是閉合的.凸輪開關(guān)凸輪頂桿HarvestAssist輔助推冰系統(tǒng)WaterPumpcontinuestorun,ThePurgeValveandHotGasValveareopen.Astheunitentersthedefrostcycle,TheProbeMotorontheHarvestAssistAssemblyisenergizedandbeginstoturnclockwisewhenviewedfromtheshaftend.TheProbeShaftispushedforwardandmeetsthebackoftheiceslab.TheClutchthenbeginstoslipuntiltheEvaporatorwarmsenoughfortheshafttomoveforward,pushingtheicefromtheEvaporator.水泵繼續(xù)運轉(zhuǎn),泄水閥和化霜閥打開當制冰機進入化霜周期,輔助推冰系統(tǒng)的頂桿馬達啟動,開始順時針轉(zhuǎn)動.頂桿就會向前推并碰到冰板的背面.凸輪繼續(xù)運轉(zhuǎn),當蒸發(fā)器已經(jīng)有足夠升溫,頂桿就會繼續(xù)向前,把冰推離蒸發(fā)器.HarvestAssist輔助推冰系統(tǒng)WhentheEvaporatoriswarmenough,theProbeShaftbeginspushingtheiceslaboff,helpingbreakthecapillaryattraction.當蒸發(fā)器有足夠的升溫,頂桿開始推出冰板,幫助破壞毛細引力.AstheProbeShaftmovesforward,theiceispushedclearoftheEvaporatorandtheiceslabdropsintothestoragebin.當頂桿向前移動,冰塊會被推離蒸發(fā)器掉入儲冰箱.HarvestAssist輔助推冰系統(tǒng)TheProbeShaftcontinuesforwardtoitsfullestextensionandwillbegintoretract.NotetheCamSwitchisabouttorideoutofthedepressionontheClutch.頂桿繼續(xù)向前到達最大,然后開始縮回.注意:凸輪開關(guān)的柄會被凸輪壓縮.HarvestAssist輔助推冰系統(tǒng)TheWaterPumpshutsdownandthePurgeValvecloses.NowiswhentheCurtainSwitchisread.AstheCamSwitcharmridesoutofthedepression,thecontactsswitch.Normallyopennowcloseswhilenormallyclosedopens.ThisshutsofftheWaterPumpandthePurgeValve.TheHotGasValveremainsopen.NowiswhentheCurtainSwitchisread.當水簾開關(guān)已經(jīng)有過動作,水泵停止運轉(zhuǎn),泄水閥關(guān)閉.當凸輪開關(guān)的柄超出被壓縮部分,開關(guān)的常開點關(guān)閉,常閉點打開.水泵和泄水閥會被關(guān)閉.化霜閥仍舊開啟.水簾開關(guān)已經(jīng)有過動作了.HarvestAssist輔助推冰系統(tǒng)Ifthebinisfullandthecurtainremainsopen,theunitwillshutdown.Ifthebinisnotfull,thecurtainwouldcloseafterharvestingt