Daikin ATXS20G2V1B Service Manual

Service ManualInverter PairWall Mounted Type G-SeriesSiBE04-808_C[Applied Models]z Inverter Pair : Cooling Onlyz Inverter Pair : Heat Pump

Introduction SiBE04-808_Cix1.2 Used IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is de

Troubleshooting SiBE04-808_C90 Service Diagnosis4.4 Fan Motor (DC Motor) or Related AbnormalityError CodeA6Method of Error DetectionThe rotation speed

SiBE04-808_C TroubleshootingService Diagnosis 91TroubleshootingCheck No.02Refer to P.131Turn off the power supply and disconnect the fan motor connect

Troubleshooting SiBE04-808_C92 Service Diagnosis4.5 Thermistor or Related Abnormality (Indoor Unit)Error CodeC4, C9 Method of Error DetectionThe tempe

SiBE04-808_C TroubleshootingService Diagnosis 934.6 Refrigerant ShortageError CodeU0Method of Error DetectionRefrigerant shortage detection I:Refriger

Troubleshooting SiBE04-808_C94 Service DiagnosisRefrigerant shortage detection III: (20/25/35 class only)When the difference of the temperature is sma

SiBE04-808_C TroubleshootingService Diagnosis 95TroubleshootingCheck No.01Refer to P.130Check No.12Refer to P.132(R16015)CautionYESNGNONOYESYESYESNOYE

Troubleshooting SiBE04-808_C96 Service Diagnosis4.7 Low-voltage Detection or Over-voltage DetectionError CodeU2Method of Error DetectionLow-voltage de

SiBE04-808_C TroubleshootingService Diagnosis 97TroubleshootingCorrect the power supply.Replace the outdoor unit PCB.Check for such factors for a long

Troubleshooting SiBE04-808_C98 Service Diagnosis4.8 Signal Transmission Error (between Indoor Unit and Outdoor Unit)Error CodeU4Method of Error Detect

SiBE04-808_C TroubleshootingService Diagnosis 99TroubleshootingCheck No.11Refer to P.131Check No.11Check the power supply waveform.Check the voltage o

SiBE04-808_CList of Functions 1Part 1List of Functions1. Functions...

Troubleshooting SiBE04-808_C100 Service Diagnosis4.9 Signal Transmission Error on Outdoor Unit PCB (RK(X)S50G2V1B, ARXS50G2V1B Only)Error CodeU7Method

SiBE04-808_C TroubleshootingService Diagnosis 1014.10 Unspecified Voltage (between Indoor Unit and Outdoor Unit)Error Code UAMethod of Error Detectio

Troubleshooting SiBE04-808_C102 Service Diagnosis4.11 Outdoor Unit PCB AbnormalityError Code E1Method of Error DetectionThe system checks if the mic

SiBE04-808_C TroubleshootingService Diagnosis 103Troubleshooting 42 classCautionBe sure to turn off power switch before connect or disconnect connecto

Troubleshooting SiBE04-808_C104 Service DiagnosisTroubleshooting RK(X)S50G2V1B, ARXS50G2V1B(R16690)CautionBe sure to turn off the power switch before

SiBE04-808_C TroubleshootingService Diagnosis 1054.12 OL Activation (Compressor Overload)Error CodeE5Method of Error DetectionA compressor overload is

Troubleshooting SiBE04-808_C106 Service DiagnosisTroubleshootingCheck No.01Refer to P.130Check No.12Refer to P.132Check No.13Refer to P.133Check No.14

SiBE04-808_C TroubleshootingService Diagnosis 1074.13 Compressor LockError CodeE6Method of Error DetectionA compressor lock is detected by checking th

Troubleshooting SiBE04-808_C108 Service Diagnosis4.14 DC Fan LockError CodeE7Method of Error DetectionAn error is determined with the high-voltage fan

SiBE04-808_C TroubleshootingService Diagnosis 1094.15 Input Overcurrent DetectionError CodeE8Method of Error DetectionAn input overcurrent is detected

Functions SiBE04-808_C2 List of Functions1. Functions1.1 Cooling OnlyCategory FunctionsFTXS20/25/35/42G2V1BRKS20/25/35/42G2V1BRKS20/25/35G2V1B9FTXS50G

Troubleshooting SiBE04-808_C110 Service Diagnosis4.16 Four Way Valve AbnormalityError CodeEAMethod of Error DetectionThe room temperature thermistor a

SiBE04-808_C TroubleshootingService Diagnosis 111TroubleshootingCheck No.01Refer to P.130Check No.13Refer to P.133Check No.14Refer to P.133NGOKNOOKNGO

Troubleshooting SiBE04-808_C112 Service Diagnosis4.17 Discharge Pipe Temperature ControlError CodeF3Method of Error DetectionAn error is determined wi

SiBE04-808_C TroubleshootingService Diagnosis 1134.18 High Pressure Control in CoolingError CodeF6Method of Error DetectionHigh-pressure control (oper

Troubleshooting SiBE04-808_C114 Service Diagnosis4.19 Compressor System Sensor Abnormality4.19.1 20/25/35/42 Class, ARXS50G3V1BError Code H0Method of

SiBE04-808_C TroubleshootingService Diagnosis 1154.19.2 RK(X)S50G2V1B, ARXS50G2V1BError CodeH0Method of Error DetectionThe system checks the power su

Troubleshooting SiBE04-808_C116 Service Diagnosis4.20 Position Sensor AbnormalityError CodeH6Method of Error DetectionA compressor start-up failure is

SiBE04-808_C TroubleshootingService Diagnosis 117Troubleshooting 20/25/35/42 class, ARXS50G3V1BCheck No.15Refer to P.134Check No.18Refer to P.137Check

Troubleshooting SiBE04-808_C118 Service DiagnosisTroubleshooting RK(X)S50G2V1B, ARKS50G2V1BCheck No.15Refer to P.134Check No.18Refer to P.137CautionBe

SiBE04-808_C TroubleshootingService Diagnosis 1194.21 DC Voltage / Current Sensor Abnormality (20/25/35/42 Class Only)Error CodeH8Method of Error Dete

SiBE04-808_C FunctionsList of Functions 31.2 Heat PumpCategory FunctionsFTXS20/25/35/42G2V1BRXS20/25/35/42G2V1BRXS20/25/35G2V1B9FTXS50G2V1BRXS50G2V1BC

Troubleshooting SiBE04-808_C120 Service Diagnosis4.22 CT or Related Abnormality (RK(X)S50G2V1B, ARXS50G2V1B Only)Error CodeH8Method of Error Detection

SiBE04-808_C TroubleshootingService Diagnosis 121TroubleshootingCheck No.15Refer to P.134Check No.21Refer to P.140(R18335)CautionYES2 secTimeNONOYESYE

Troubleshooting SiBE04-808_C122 Service Diagnosis4.23 Thermistor or Related Abnormality (Outdoor Unit)Error Code H9, J3, J6, P4Method of Error Detecti

SiBE04-808_C TroubleshootingService Diagnosis 123Troubleshooting In case of “H9” “J3” “J6”Check No.01Refer to P.130H9 : Outdoor temperature thermistor

Troubleshooting SiBE04-808_C124 Service Diagnosis4.24 Electrical Box Temperature RiseError CodeL3Method of Error DetectionAn electrical box temperatur

SiBE04-808_C TroubleshootingService Diagnosis 125TroubleshootingCheck No.17Refer to P.137Check No.19Refer to P.138CautionWARNINGTo cool the electrical

Troubleshooting SiBE04-808_C126 Service Diagnosis4.25 Radiation Fin Temperature RiseRemote Controller DisplayL4Method of Malfunction DetectionA radiat

SiBE04-808_C TroubleshootingService Diagnosis 127TroubleshootingCheck No.17Refer to P.137Check No.19Refer to P.138Note: Refer to “Silicon Grease on Po

Troubleshooting SiBE04-808_C128 Service Diagnosis4.26 Output Overcurrent DetectionError CodeL5Method of Error DetectionAn output overcurrent is detect

SiBE04-808_C TroubleshootingService Diagnosis 129TroubleshootingCheck No.15Refer to P.134Check No.17Refer to P.137Check No.18Refer to P.137Check No.22

Functions SiBE04-808_C4 List of FunctionsCategory FunctionsATXS20/25/35/42G2V1BARXS20/25/35/42G2V1BARXS20/25/35/42G3V1BATXS50G2V1BARXS50G2V1BARXS50G3V

Check SiBE04-808_C130 Service Diagnosis5. Check5.1 Thermistor Resistance CheckCheck No.01 Disconnect the connectors of the thermistors from the PCB, a

SiBE04-808_C CheckService Diagnosis 1315.2 Fan Motor Connector Output CheckCheck No.02 1. Check the connection of connector.2. Check the motor power s

Check SiBE04-808_C132 Service Diagnosis5.4 Electronic Expansion Valve CheckCheck No.12 Conduct the followings to check the electronic expansion valve

SiBE04-808_C CheckService Diagnosis 1335.5 Four Way Valve Performance CheckCheck No.135.6 Inverter Units Refrigerant System CheckCheck No.14(R15737)NO

Check SiBE04-808_C134 Service Diagnosis5.7 Inverter Analyzer CheckCheck No.15CharacteristicsInverter analyzer: RSUK0917CIf an abnormal stop occurs du

SiBE04-808_C CheckService Diagnosis 13542 class: Activate power transistor test operation from indoor unit.1) Turn the power on.2) Select FAN operatio

Check SiBE04-808_C136 Service Diagnosis5.8 Rotation Pulse Check on the Outdoor Unit PCBCheck No.16 RK(X)S20-50G2V1B, ARXS20-50G2V1B, ARXS42/50G3V1BMak

SiBE04-808_C CheckService Diagnosis 1375.9 Installation Condition CheckCheck No.175.10 Discharge Pressure CheckCheck No.18Installation condition check

Check SiBE04-808_C138 Service Diagnosis5.11 Outdoor Fan System CheckCheck No.19 DC motor5.12 Main Circuit Short CheckCheck No.20Note: Check to make su

SiBE04-808_C CheckService Diagnosis 139RK(X)S20-35G2V1B9, ARXS20-35G3V1B, ARXS20-35G4V1BRK(X)S42G2V1B, ARXS42G2V1B, ARXS42G3V1BARXS50G3V1B(R12035)Test

SiBE04-808_C FunctionsList of Functions 5Category FunctionsATXS20/25/35G2V1BARXS20/25/35G4V1BCategory FunctionsATXS20/25/35G2V1BARXS20/25/35G4V1BBasic

Check SiBE04-808_C140 Service Diagnosis5.13 Capacitor Voltage CheckCheck No.21 RK(X)S50G2V1B, ARXS50G2V1BBefore this check, be sure to check the main

SiBE04-808_C CheckService Diagnosis 1415.14 Power Module CheckCheck No.22Note: Check to make sure that the voltage between (+) and (–) of the power mo

Check SiBE04-808_C142 Service DiagnosisRK(X)S20-35G2V1B9, ARXS20-35G3V1B, ARXS20-35G4V1BRK(X)S42G2V1B, ARXS42G2V1B, ARXS42G3V1B(R16069)Power module(R1

SiBE04-808_C CheckService Diagnosis 143RK(X)S50G2V1B, ARXS50G2V1BARXS50G3V1BPower module(R18212)Power module(R16692)

SiBE04-808_C144 Trial Operation and Field SettingsPart 7Trial Operation andField Settings1. Pump Down Operation...

SiBE04-808_C Pump Down OperationTrial Operation and Field Settings 1451. Pump Down OperationOutline In order to protect the environment, be sure to co

Forced Cooling Operation SiBE04-808_C146 Trial Operation and Field Settings2. Forced Cooling OperationIndoor UnitOutdoor Unit: RK(X)S20-35G2V1B, ARXS2

SiBE04-808_C Forced Cooling OperationTrial Operation and Field Settings 147Outdoor Unit: RK(X)S20-35G2V1B9, ARXS20-35G3V1B, ARXS20-35G4V1BOutdoor Unit

Trial Operation SiBE04-808_C148 Trial Operation and Field Settings3. Trial OperationOutline 1. Measure the power supply voltage and make sure that it

SiBE04-808_C Trial OperationTrial Operation and Field Settings 149ARC433 Series(1) Press the [ON/OFF] button to turn on the system.(2) Press the cente

SiBE04-808_C6 SpecificationsPart 2Specifications1. Specifications ...

Field Settings SiBE04-808_C150 Trial Operation and Field Settings4. Field Settings4.1 Model Type SettingARC452A3The remote controller is common to th

SiBE04-808_C Field SettingsTrial Operation and Field Settings 1514.3 Standby Electricity SavingOutline 20-42 Class OnlyThis function turns power suppl

Field Settings SiBE04-808_C152 Trial Operation and Field Settings4.4 Facility Setting Jumper and Switch (cooling at low outdoor temperature)Outline Th

SiBE04-808_C Field SettingsTrial Operation and Field Settings 15350 ClassRK(X)S50G2V1B, ARXS50G2V1BYou can expand the operation range to –15°C by tur

Field Settings SiBE04-808_C154 Trial Operation and Field Settings4.5 Jumper and Switch SettingsIndoor UnitFor the location of the jumper, refer to pag

SiBE04-808_C Silicon Grease on Power Transistor / Diode BridgeTrial Operation and Field Settings 1555. Silicon Grease on Power Transistor / Diode Brid

SiBE04-808_C156 AppendixPart 8Appendix1. Piping Diagrams...1571.1 Indoo

SiBE04-808_C Piping DiagramsAppendix 1571. Piping Diagrams1.1 Indoor UnitFTXS20/25/35/42G2V1B,ATXS20/25/35/42G2V1BFTXS50G2V1B, ATXS50G2V1BINDOOR UNIT6

Piping Diagrams SiBE04-808_C158 Appendix1.2 Outdoor Unit1.2.1 Cooling OnlyRKS20G2V1B, RKS20G2V1B9RKS25/35G2V1B, RKS25/35G2V1B96.4CuTOUTDOOR UNITMMUFFL

SiBE04-808_C Piping DiagramsAppendix 159RKS42G2V1BRKS50G2V1B9.5CuT4.8CuT4.8CuT6.4CuTMUFFLER9.5CuTPROPELLER FAN7.9CuT7.9CuT9.5CuT6.4CuTACCUMULATORMUFFL

SiBE04-808_C SpecificationsSpecifications 71. Specifications1.1 Cooling Only50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown

Piping Diagrams SiBE04-808_C160 Appendix1.2.2 Heat PumpRXS20G2V1B, ARXS20G2V1B, RXS20G2V1B9, ARXS20G3V1B, ARXS20G4V1BRXS25/35G2V1B, ARXS25/35G2V1B, RX

SiBE04-808_C Piping DiagramsAppendix 161RXS42G2V1B, ARXS42G2V1B, ARXS42G3V1BRXS50G2V1B, ARXS50G2V1BOUTDOOR UNITHEAT EXCHANGER7.9CuT7.9CuT12.7CuT4.8CuT

Piping Diagrams SiBE04-808_C162 AppendixARXS50G3V1BOUTDOOR UNITHEAT EXCHANGER7.9CuT7.9CuT7.9CuT7.9CuT7.9CuT12.7CuTCAPILLARY TUBE 1CAPILLARY TUBE 2CAPI

SiBE04-808_C Wiring DiagramsAppendix 1632. Wiring Diagrams2.1 Indoor UnitFTXS20/25/35/42/50G2V1B, ATXS20/25/35/42/50G2V1B2.2 Outdoor UnitRK(X)S20/25/3

Wiring Diagrams SiBE04-808_C164 AppendixRK(X)S20/25/35G2V1B9, ARXS20/25/35G3V1B, ARXS20/25/35G4V1BRKS42G2V1BFIELD WIRING.INDOORMRM20N=2WHTIPM1FU3Z3CX1

SiBE04-808_C Wiring DiagramsAppendix 165RXS42G2V1B, ARXS42G2V1B, ARXS42G3V1BRKS50G2V1BINDOORL1RBRNORGPCB1HR2HR1MRM20IPM1DB1Z2C~~~~~~L1++N=3HL1 FU3V4MR

Wiring Diagrams SiBE04-808_C166 AppendixRXS50G2V1B, ARXS50G2V1BARXS50G3V1BL1RGRNGRNYLWWHTWHTZ1CX1MZ5CX12AFU3HR2GRN7HR1REDREDM1FE1E2LSA2MRM203.15AMBLUV

SiBE04-808_C Removal Procedure (Booklet No.)Appendix 1673. Removal Procedure (Booklet No.)Refer to the following booklets for removal procedure.∗FTXS2

Revision HistoryMonth / Year Version Revised contents02 / 2008 SiBE04-808 First edition04 / 2010 SiBE04-808_A Model addition: RK(X)S20/25/35G2V1B9, AR

Head Office:Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,Kita-ku, Osaka, 530-8323 JapanTokyo Office:JR Shinagawa East Bldg., 2-18-1, Konan,Minato-ku, To

Specifications SiBE04-808_C8 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor U

SiBE04-808_C SpecificationsSpecifications 950 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor U

SiBE04-808_Ci Table of ContentsInverter PairWall Mounted TypeG-SerieszCooling OnlyIndoor UnitFTXS20G2V1BFTXS25G2V1BFTXS35G2V1BFTXS42G2V1BFTXS50G2V1BOu

Specifications SiBE04-808_C10 Specifications1.2 Heat Pump50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.

SiBE04-808_C SpecificationsSpecifications 1150 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

Specifications SiBE04-808_C12 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_C SpecificationsSpecifications 1350 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

Specifications SiBE04-808_C14 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_C SpecificationsSpecifications 1550 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

Specifications SiBE04-808_C16 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_C SpecificationsSpecifications 1750 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

Specifications SiBE04-808_C18 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_C SpecificationsSpecifications 1950 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_CTable of Contents ii1. Introduction ...v1.1 Safe

Specifications SiBE04-808_C20 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelsIndoor

SiBE04-808_CPrinted Circuit Board Connector Wiring Diagram 21Part 3Printed Circuit BoardConnector Wiring Diagram1. Indoor Unit...

Indoor Unit SiBE04-808_C22 Printed Circuit Board Connector Wiring Diagram1. Indoor UnitControl PCBCaution Replace the PCB if you accidentally cut the

SiBE04-808_C Indoor UnitPrinted Circuit Board Connector Wiring Diagram 23Signal Receiver PCBDisplay PCBINTELLIGENT EYE Sensor PCB1) S48 Connector for

Outdoor Unit SiBE04-808_C24 Printed Circuit Board Connector Wiring Diagram2. Outdoor Unit2.1 RK(X)S20-35G2V1B, ARXS20-35G2V1BMain PCBCaution Replace t

SiBE04-808_C Outdoor UnitPrinted Circuit Board Connector Wiring Diagram 25Filter PCB1) S11 Connector for main PCB2) HL1, HN1, S Connector for terminal

Outdoor Unit SiBE04-808_C26 Printed Circuit Board Connector Wiring Diagram2.2 RK(X)S20-35G2V1B9, ARXS20-35G3V1B, ARXS20-35G4V1BMain PCBCaution Replace

SiBE04-808_C Outdoor UnitPrinted Circuit Board Connector Wiring Diagram 27Filter PCBForced Operation Button PCB1) S11 Connector for main PCB2) AC1, AC

Outdoor Unit SiBE04-808_C28 Printed Circuit Board Connector Wiring Diagram2.3 RK(X)S42G2V1B, ARXS42G2V1B, ARXS42G3V1BMain PCBCaution Replace the PCB i

SiBE04-808_C Outdoor UnitPrinted Circuit Board Connector Wiring Diagram 292.4 RK(X)S50G2V1B, ARXS50G2V1BMain PCBService Monitor PCB SW4-A has no func

SiBE04-808_Ciii Table of Contents3.8 Outdoor Fan Control...663.9 Liquid Co

Outdoor Unit SiBE04-808_C30 Printed Circuit Board Connector Wiring Diagram2.5 ARXS50G3V1BMain PCBCaution Replace the PCB if you accidentally cut the j

SiBE04-808_C Outdoor UnitPrinted Circuit Board Connector Wiring Diagram 31Filter PCB1) S11 Connector for [S10] on main PCB2) HL1, HN1, S Connector for

SiBE04-808_C32 Function and ControlPart 4Function and Control1. Main Functions...

SiBE04-808_C Main FunctionsFunction and Control 331. Main Functions1.1 Temperature ControlDefinitions of TemperaturesThe definitions of temperatures a

Main Functions SiBE04-808_C34 Function and ControlDrawing of InverterThe following drawing shows a schematic view of the inverter principle:Inverter F

SiBE04-808_C Main FunctionsFunction and Control 351.3 Airflow Direction ControlPower-Airflow Dual FlapsThe large flap sends a large volume of air down

Main Functions SiBE04-808_C36 Function and Control1.4 Fan Speed Control for Indoor UnitOutline Phase control and fan speed control contains 9 steps: L

SiBE04-808_C Main FunctionsFunction and Control 371.5 Program Dry OperationOutline Program dry operation removes humidity while preventing the room te

Main Functions SiBE04-808_C38 Function and Control1.6 Automatic OperationOutline Automatic Cooling / Heating FunctionWhen the automatic operation is s

SiBE04-808_C Main FunctionsFunction and Control 391.7 Thermostat ControlOutline Thermostat control is based on the difference between the room thermis

SiBE04-808_CTable of Contents iv5.3 Power Supply Waveforms Check...1315.4 Electronic Expansion V

Main Functions SiBE04-808_C40 Function and Control1.8 NIGHT SET ModeOutline When the OFF TIMER is set, the NIGHT SET Mode is automatically activated.

SiBE04-808_C Main FunctionsFunction and Control 411.9 ECONO OperationOutline ECONO operation reduces the maximum operating current and the power consu

Main Functions SiBE04-808_C42 Function and Control1.10 2-Area INTELLIGENT EYE OperationOutline FTK(X)S SeriesThe following functions can be performed

SiBE04-808_C Main FunctionsFunction and Control 432. Motions (for example: in cooling)When the microcomputer does not have a signal from the sensor i

Main Functions SiBE04-808_C44 Function and Control1.11 INTELLIGENT EYE OperationOutline ATXS SeriesThis function detects the existence of humans in th

SiBE04-808_C Main FunctionsFunction and Control 451.12 Inverter POWERFUL OperationOutline In order to exploit the cooling and heating capacity to full

Main Functions SiBE04-808_C46 Function and Control1.13 Clock SettingARC452 Series The clock can be set by taking the following steps:1. Press the [CLO

SiBE04-808_C Main FunctionsFunction and Control 471.14 WEEKLY TIMER OperationOutline FTK(X)S SeriesUp to 4 timer settings can be saved for each day of

Main Functions SiBE04-808_C48 Function and ControlTo use WEEKLY TIMER operation 1. Press . 2.3. Press .• The day of the w

SiBE04-808_C Main FunctionsFunction and Control 496. Press to select the desired time.7. Press .• The time will be set. • “

Introduction SiBE04-808_Cv1. Introduction1.1 Safety CautionsCautions and WarningsBe sure to read the following safety cautions before conducting repa

Main Functions SiBE04-808_C50 Function and ControlNOTE Notes on WEEKLY TIMER operationDay and number ON/OFF Time TemperatureSetting Displays• Do not

SiBE04-808_C Main FunctionsFunction and Control 511. Press .2.3. Press to activate copy mode.4.Copy mode6:00 8:30 17:30 22

Main Functions SiBE04-808_C52 Function and Control5. Press .6. Press to complete the setting.NOTE Note on COPY MODESettin

SiBE04-808_C Main FunctionsFunction and Control 53 Confirming a reservation• The reservation can be confirmed.1. Press .2.• Pressing th

Main Functions SiBE04-808_C54 Function and Control To delete reservations 5. Press .6.7. Hold for 5 seconds.8.The individ

SiBE04-808_C Main FunctionsFunction and Control 551.15 Other Functions1.15.1 Hot-Start FunctionIn order to prevent the cold air blast that normally co

Function of Thermistor SiBE04-808_C56 Function and Control2. Function of Thermistor(1) Outdoor Heat Exchanger Thermistor 1. The outdoor heat exchang

SiBE04-808_C Control SpecificationFunction and Control 573. Control Specification3.1 Mode HierarchyOutline Air conditioner control has normal operatio

Control Specification SiBE04-808_C58 Function and Control3.2 Frequency ControlOutline Frequency is determined according to the difference between the

SiBE04-808_C Control SpecificationFunction and Control 592. Determine upper limit frequencyThe minimum value is set as an upper limit frequency among

SiBE04-808_C IntroductionviBe sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2 m). Insufficient safet

Control Specification SiBE04-808_C60 Function and Control3.3 Controls at Mode Changing / Start-up3.3.1 Preheating ControlOutline The inverter operatio

SiBE04-808_C Control SpecificationFunction and Control 613.3.3 Four Way Valve Operation CompensationOutline At the beginning of the operation as the f

Control Specification SiBE04-808_C62 Function and Control3.4 Discharge Pipe Temperature ControlOutline The discharge pipe temperature is used as the i

SiBE04-808_C Control SpecificationFunction and Control 633.5 Input Current ControlOutline The microcomputer calculates the input current while the com

Control Specification SiBE04-808_C64 Function and ControlRK(X)S20-35G2V1B9, ARXS20-35G3V1B, ARXS20-35G4V1B, ARXS42/50G3V1BLimitation of current dropp

SiBE04-808_C Control SpecificationFunction and Control 653.6 Freeze-up Protection ControlOutline During cooling operation, the signal sent from the in

Control Specification SiBE04-808_C66 Function and Control3.8 Outdoor Fan Control1. Fan ON control to cool down the electrical boxThe outdoor fan is tu

SiBE04-808_C Control SpecificationFunction and Control 673.10 Defrost ControlOutline Defrosting is carried out by the cooling cycle (reverse cycle). T

Control Specification SiBE04-808_C68 Function and Control3.11 Electronic Expansion Valve ControlOutline The following items are included in the electr

SiBE04-808_C Control SpecificationFunction and Control 693.11.1 Fully Closing with Power ONThe electronic expansion valve is initialized when turning

Introduction SiBE04-808_Cvii1.1.2 Cautions Regarding Safety of UsersWarningBe sure to use parts listed in the service parts list of the applicable mod

Control Specification SiBE04-808_C70 Function and Control3.11.7 Control for Disconnection of the Discharge Pipe ThermistorOutline The disconnection of

SiBE04-808_C Control SpecificationFunction and Control 713.12 Malfunctions3.12.1 Sensor Malfunction DetectionSensor malfunction may occur in the therm

SiBE04-808_C72 Remote ControllerPart 5Remote Controller1. FTXS20/25/35/42/50G2V1B ...732

SiBE04-808_C FTXS20/25/35/42/50G2V1BRemote Controller 731. FTXS20/25/35/42/50G2V1BThe remote controller is compatible with both cooling only and heat

FTXS20/25/35/42/50G2V1B SiBE04-808_C74 Remote ControllerReference Refer to the following pages for detail.Note: Refer to the operation manual of appl

SiBE04-808_C ATXS20/25/35/42/50G2V1BRemote Controller 752. ATXS20/25/35/42/50G2V1BReference Refer to the following pages for detail.Note: Refer to the

ATXS20/25/35/42/50G2V1B SiBE04-808_C76 Remote ControllerOpen the Front CoverReference Refer to the following pages for detail.Note: Refer to the opera

SiBE04-808_CService Diagnosis 77Part 6Service Diagnosis1. Troubleshooting with LED ...

SiBE04-808_C78 Service Diagnosis5.9 Installation Condition Check...1375.10 Discharge Pre

SiBE04-808_C Troubleshooting with LEDService Diagnosis 791. Troubleshooting with LED1.1 Indoor UnitOperation Lamp The operation lamp blinks when any o

SiBE04-808_C IntroductionviiiCheck to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely.If

Problem Symptoms and Measures SiBE04-808_C80 Service Diagnosis2. Problem Symptoms and MeasuresSymptom Check Item Details of Measure ReferencePageThe u

SiBE04-808_C Service Check FunctionService Diagnosis 813. Service Check Function3.1 ARC452 SeriesCheck Method 1 1. When the timer cancel button is hel

Service Check Function SiBE04-808_C82 Service DiagnosisCheck Method 21. Press the 3 buttons (TEMP, TEMP, MODE) at the same time to enter the diagnos

SiBE04-808_C Service Check FunctionService Diagnosis 835. Press the [TEMP]  or  button and change the number until you hear the long beep.6. Diagnos

Service Check Function SiBE04-808_C84 Service Diagnosis3.2 ARC433 SeriesCheck Method 1 1. When the timer cancel button is held down for 5 seconds, 00

SiBE04-808_C Service Check FunctionService Diagnosis 85Check Method 2 1. Press the center of the [TEMP] button and the [MODE] button at the same time

Service Check Function SiBE04-808_C86 Service Diagnosis5. Press the [TEMP]  or  button and change the number until you hear the long beep.6. Diagnos

SiBE04-808_C TroubleshootingService Diagnosis 874. Troubleshooting4.1 Error Codes and Description: Displayed only when system-down occurs.Error Codes

Troubleshooting SiBE04-808_C88 Service Diagnosis4.2 Indoor Unit PCB AbnormalityError CodeA1Method of Error DetectionThe system checks if the circuit w

SiBE04-808_C TroubleshootingService Diagnosis 894.3 Freeze-up Protection Control or Heating Peak-cut ControlError CodeA5Method of Error DetectionFree