Samsung RFG298HD Service Manual page 22

PROdUCT SPECIFICATIONS
2-7-3. Operation theory of refrigeration cycle components
■Evaporator
1. R ole:Asthelowpressureliquidrefrigerantflowedfromcapillaryabsorbsheatinsideofthe
refrigerator,itbecomeslowpressuregasandrefrigeratethefoods.
2. T heory:Thelowpressurerefrigerantflowedtoevaporatoroperatescoolingwhichtakes
ambientevaporatedpotentialheatwithmaintainingtheevaporationuptoevaporate
completely.
3.TypesofEvaporator
A.ROLL-BONDEvaporator⇢DirectCoolingONE-DOORType
☞Rolledandadherethe2aluminumplateandthenmakerefrigerantpassage.
B.PIN-PIPEType⇢IndirectcoolingTWO-DOORType
☞asmallaluminumplateonthealuminumpipetoincreasethecoolingeffect.
■Compressor
1. R ole:Itoperatessameaspumpwhichpulloutthesubterraneanwater.Itinhalesthelow
temperatureandpressurerefrigerantgas(flowedout)fromevaporatorandmakehigh
temperatureandpressurerefrigerantliquidinthecompressorandsendittothecondenser.
2.TypeofCondenser
a. B ack-and-forthmotiontype:Amethodthatpistolmakesback-and-forthmotionthrough
shaftandcylinderofmotorrotationandcompresses.※ U sedforhouseholdrefrigerant
b. R otaryType:Amethodthatinhalestherefrigerantgasthroughthegapbetweentheoutside
ofrotorelectricattachedontheshaftandtheinsideofcylinderandcompresses.
c.CentrifugalType
3.Pleaseinserttheexplanationofinvertercompoperationtheory.
■Dryer
1. R ole:Absorbthemoisturefromtherefrigerantthatrefrigerationcyclecirculatesandeliminate
theforeignsubstance.
2. S tructure:Ifevensomemoistureisincludedrefrigerantisimpossibletocirculatebyfreezingthe
smallcapillaryoutlet,sosilicagelormolecularsieveis(includedand)sealedtoabsorbthe
internalmoisture,andinstallaminutenettoeliminatetheforeignsubstance.
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