treinamento da tecnologia invert

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  • 1.LG ELECTRONICS

2. R410A Refrigerant LG ELECTRONICS 3. R410A Refrigerant CharacteristicR410A vs R22ItemR-22R-410A Mixed RefrigerantCompositionMono Refrigerant(R32:R125 = 50:50)Ozone Depletion 0.00550Potential (ODP)Global Warming1700 1370Potential (GWP)Saturation Pressure 150240(at 25. Psi)Boiling Point () -40.8-51.4No change inLeakageComposition changescomposition Liquid/Gas/BothMust be charged in liquidRecharging (Liquid+Gas)state LG ELECTRONICS 4. R410A Temperature-Pressure Chart How its different from R22? A temperature-pressure chart can easily be used for charging, refrigerant cycle analysis and diagnosis. R410A is 1.6 times higher vapor pressure than R-22 when saturated. Caution during installation :Temp R410AR22Temp R410AR22-40 2620210132HIGH PRESSURER410A 15 25240150 1.6 times higher-3532 1930275 173 than R22-30 4035312196 2440353222 Problem :-25 4845397250High possibility of 30 gas leakage-20 5850446282 3555500315 Solution :-15 7060556352 43 Larger flare size 65618392-10 84R410A 5170686435R22-5 10075 - 480 610118 LG ELECTRONICS 5. R410A ProcedureWhy its different from R22? R410A must be charged in liquid state. Its a mixed refrigerant, if charging in vapor state the composition might changed.Why?Right procedure : OpenOpen GasGas LiquidLiquid MonoMixed Different ratio RefrigerantCaution during installation : Charge R410A cylinder in upright position to avoid loss in performance. LG ELECTRONICS 6. R410A Special Tool Why its different from R22? As pressure is high,it is impossible to measure using conventional gauge, To increase pressure resisting strength,hose materials and port size are different. New Tools Applicable to R22ChangesGauge Manifold High Pressure : R410A 0.1 ~ 5.3 MPa X (R22 ~ 3.5 MPa) Low Pressure : R410A 0.1 ~ 3.8 MPa (R22 ~ 1.7 MPa)Charge HoseR410A : 1/2 UNF 20 threads per inch X (R22 : 7/16 UNF) R410A : 5.1 Mpa (51 kgf/ ) (R22 : 3.4 Mpa (34 kgf/ ))Vacuum PumpPumps used with CFC and HCFC X charged systems may also be used on R410A systemsCaution during installation :DO NOT mix refrigerants in your tools. Dissimilar oils will becomecontaminated.LG ELECTRONICS 7. R410A Lubrication Why its different from R22? The chemistry of R-410A makes it incompatible with mineral based lubricants The preferred lubricants are the Polyolester or Ether based oils. Exposure to the atmosphere must be limited. Esther oilEther oil Mineral oil Caution during installation :The oil is miscible, so it is very important to remove as much particulatesand moisture from the system Vacuum MUST be performed. Moisture can be absorb very easily. LG ELECTRONICS 8. General Operation LogicLG ELECTRONICS 9. Basic Mode Controls Modo de refriamento :Modo Aquecimento: Temp.3minTemp.Thermo OFFThermo OFF +4+0.5 +2Thermo ONSet temp.1) Thermo ON-0.5 Set temp.-1.5 2) Comp. High Low Comp Off High Low Comp. High Low Comp Off High Low Comp Off FrequencyFrequencyO operacional Hz depende da condio de carga, como a diferena entre a temperatura ambiente econjunto ou restries de frequncia. Aps compressor est desligado, pode reiniciar novamente em 3 minutos o tempo de atraso > protegercondio compressor No modo de resfriamento h dois casos quando o compressor est desligado (ver grfico sup.)1)Em quanto Troom-set is lower than 0.5 for 3mins continuously or2) when Troom-set is lower than 1.5 . No modo de aquecimento, quando Troom Maior Conjunto E fazer Que 4 , compressor Ira Parar detrabalhar H e comear de novo quando Troom conjunto- inferior a 2 . Por qu? Para garantir a capacidade de arrefecimento / aquecimento ideal LG ELECTRONICS 10. Basic Mode Controls Compressor Frequency Restriction : Uma das restries de frequncia muitas limite de temperatura exterior. Isto significa que o mximo de trabalho Hz para o compressor limitada pelo ambiente exterior temperature. Por qu? para proteger o compressor e manter responsabilidade do produto.Outdoor TempResfriament Outdoor Temp () Aquecimento()o (Max Step)(Max Step)Outdoor 03 Outdoor -716 0< Outdoor 103 -7< Outdoor -2 15 10< Outdoor 234-2< Outdoor 413 23< Outdoor 3010 4< Outdoor 101130< Outdoor 4012 10< Outdoor 211146< Outdoor 10821< Outdoor 27 546< Outdoor727< Outdoor 3 LG ELECTRONICS 11. Basic Mode Controls Defrosting Control : Durante o modo de aquecimento, o ciclo invertido para o ciclo de aquecimento para descongelar o evaporador tubo da unidade exterior. Por qu? Para proteger o tubo da unidade exterior do congelamento. Em desgelo controle, a amostra. , que a ventoinha interior, ventilador ao ar livre, ea vlvula de 4 vias esto fora. Durante a descongelao, o min. temp. do tubo interior medido e comparado com o apresentar temp. do tubo interior para obter a diferena de que a temperatura interior. (Se a diferena for 5 ou superior, controlo de descongelao completada e no modo de aquecimento levada a cabo de novo)Heating Cycle HOT STARTEndMax Temp Max Temp(40 minutes)TmaxDefrostPipe Temp Start Defrost EndIntake Air. Tmin=5 Over TempMin Temp Defrost TimeCompressor ONOutdoor Fan ON OFFONIndoor FanON OFFON4_way Valve ON OFFONLG ELECTRONICS 12. Basic Mode Controls Hot Start Operation : Durante o incio de funcionamento de aquecimento, este sistema foi concebido para evitar que o ar frio a partir de serem descarregados, enquanto espera depois de atingir uma certa temperatura (desta vez, ventilador interno est desligado). Aps a temperatura interior do tubo atinge 28 (opo), o ar quente vai sair na seguinte ordem da velocidade do ventilador Velocidade baixa velocidade do ventilador -> definido pelo controle remoto O diagrama de funcionamento como a seguirPipe Temp(Indoor) Pipe Temp(Indoor)28(Option)20(Option) CompressorON Outdoor Fan ONIndoor Fan STOPLOW Set Fan Speed STOP LOW Set Fan Speed4_way ValveON LG ELECTRONICS 13. Basic Mode Controls Sleep Timer Operation : A temperatura de regulao ser automaticamente aumentada de 1 30 minutosmais tarde, e por 2 1 hora mais tarde (arrefecimento / desumidificao saudvel) A operao ser interrompida depois (1,2,3,4,5,6,7: opo) horas Indoor fan control : - cooling/ Healthy Dehumidification/ Auto Mode Low speed - Heating/Auto Mode Mid speed Auto Change over Operation :O condicionador de ar muda automaticamente o modo de funcionamento de arrefecimento oucom aquecimentoou aquecimento para o arrefecimento para manter a temperatura da sala interiorconstante.Quando temp. variar ao longo 2 , ar condicionado mantm a temperatura ambiente. em 2 comrespeitar para ajustar a temperatura, alterando o modo de arrefecimento ou com aquecimento evice-versa. Healthy Dehumidification Operation : Quando a entrada de operao de desumidificao pelo controle remoto recebido, a temperatura do ar de admisso detectada ea temperatura ambiente automaticamente ajustadode acordo a temperatura do ar de admisso.LG ELECTRONICS 14. Basic Features Different angle of vane for each operation mode: Isto especialmente concebido para proporcionar o fluxo de ar ideal durante cada operao. Como o ar frio mais pesado que o ar quente na mesma umidade. Assim, o fluxo de ar gerado por o lanamento de mais pesado do ar Usando o mesmo princpio, por isso que o ngulo de palhetas do modo de resfriamento maior do que o modo de aquecimento. Mode Cooling / DehumidificationHeatingDefrost / AutoClean Remote ControlDisplay / /LG ELECTRONICS 15. Processo de instalao. LG ELECTRONICS 16. Installation Work Flow Fixing DrillingSettingSetting Installation Location Inst. Plate Hole Indoor Outdoor Standard Flare Piping Work Precautions ProcessingLengthFittingWelding/ JointsBrazing Electric Wiring Work Connecting Improper Wiring Spec WireCase Insulation Work Wrapping Pipe & Drain Vacuum Leak TestVacuum Recharging FinishingFinishing Job Checking Indoor OutdoorDrainageTrial RunBasic Check PointSymptoms LogicLG ELECTRONICS 17. Fluxo de instalao de passo a passo principal Installation LocationPiping work & Flare CheckPiping Connection Electric Wiring WorkInsulation VacuumingTest Run Check : Pressure, voltage, current and temperature differenceLG ELECTRONICS 18. Installation Tools Some of the tools used on R22 systems may be unacceptable for use on R410A.Figure Name FigureName Screw driver, SpannerVacuum pump Multi-meterMeasuring tape, Knife Pincher plier, NipperAmpere_meterHexagonal wrench Manifold Gauge for R410A Hole core drill Thermometer Vinyl tape Flaring tool setLadder, Horizontal Level R410A tank LG ELECTRONICS 19. Installation LocationLG ELECTRONICS 20. Iocal de instalao/ Selecting Best LocationHow?Why? Make sure there is no heat or steam aroundReduce cooling capacity.indoor unit.Cause low performance. Make sure heat radiation from condenser is notPrevent noise problem.blocked. Place where noise & vibration are minimum.Indoor & Outdoor Unit Space Requirement : Unit : mm Unit : mm More than 300 More than 200 More than 300More than100 More than 100 More than 600 More than 700 More than 2300Case of field defect : Blocked in/outletair flow Low performanceLimited inlet airflow Difficult when servicing Low cooling LG ELECTRONICS 21. Installation location / Selecting Best Location Case of field defect : Tips : Outdoor unit is installed on top of each other without When installing the unit at a high place be suresafely anchoring the unit.to fix the unit legs (safety precautions) Noise/vibration Consider enough space for service when Hard to serviceinstalling outdoor unit. Safety issues LG ELECTRONICS 22. Installation location / Selecting Best Location Case of field defect :Tips : Hot discharge air will enter the unit cause a work Always consider enough space when overload and starts OLP system(On/Off)installing outdoor unit. Low Performance Avoid small installation places as possible. ~~ ~ ~ ~ ~ discharge air Inlet airflow to condenser is blocked Always follow the given space requirement Operating pressure will be high and the unit maywhen selecting install location.repeatedly on-off resulting in low Cooling/Heatin