Daikin VRVIII-S Specifications

RXYMQ36·48PVJUR-410AHeat Pump 60HzSiUS34-907

SiUS34-907General Information 1Part 1General Information1. Model Names of Indoor/Outdoor Units...

SiUS34-907Troubleshooting 913.30 “L4” Malfunction of Inverter Radiation Fin Temperature Rise... 1593.31 “L5” Inverter Compressor Abnor

Symptom-based Troubleshooting SiUS34-90792 Troubleshooting1. Symptom-based TroubleshootingSymptom Supposed Cause Countermeasure1 The system does not s

SiUS34-907 Symptom-based TroubleshootingTroubleshooting 936 COOL-HEAT selection is disabled.The remote controller displays UNDER CENTRALIZED CONTROL.T

Symptom-based Troubleshooting SiUS34-90794 Troubleshooting11 The system produces sounds.<Indoor unit>Immediately after turning ON the power supp

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 952. Troubleshooting by Remote ControllerOn power-up, the message Checking the connecti

Troubleshooting by Remote Controller SiUS34-90796 Troubleshooting2.1 Self-diagnosis by Wired Remote Controller The following will be displayed on the

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 972.2 Self-diagnosis by Wireless Remote ControllerIn the Case of BRC7C Type / BRC7E Typ

Troubleshooting by Remote Controller SiUS34-90798 Troubleshooting The right-side digit of the code changes as shown below when the UP and DOWN button

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 992.3 Remote Controller Maintenance ModeHow to Enter the Maintenance ModeMaintenance Mo

Troubleshooting by Remote Controller SiUS34-907100 TroubleshootingMaintenance Menu Item 2 Remarks1.Model Name 1.Unit No. Select the Unit No. you want

Model Names of Indoor/Outdoor Units SiUS34-9072 General Information1. Model Names of Indoor/Outdoor UnitsIndoor UnitsOutdoor Units (Inverter Series)Ty

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 1016.Error Display 1.Display Warning ON Displays a warning on the screen if an error oc

Troubleshooting by Remote Controller SiUS34-907102 Troubleshooting2.4 Remote Controller Self-Diagnosis FunctionThe following will be displayed on the

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 103 k : ON h : OFF l : BlinkMalfunction codeOperation lamp Malfunction contents

Troubleshooting by Remote Controller SiUS34-907104 TroubleshootingSystem U0 k Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Va

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 105Malfunction code indication by outdoor unit PCB<Selection of setting item><

Troubleshooting by Remote Controller SiUS34-907106 Troubleshootingk : ON h : OFF l : BlinkMalfunction codeConfirmation of malfunction 1 Confirma

SiUS34-907 Troubleshooting by Remote ControllerTroubleshooting 107<Selection of setting item><Monitor mode><Confirmation of malfunction

Troubleshooting by Remote Controller SiUS34-907108 Troubleshootingk : ON h : OFF l : BlinkMalfunction codeConfirmation of malfunction 1 Confirma

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1093. Troubleshooting by Indication on the Remote Controller3.1 “A0”

Troubleshooting by Indication on the Remote Controller SiUS34-907110 Troubleshooting3.2 “A1 ” PCB DefectRemote Controller DisplayA1Applicable ModelsAl

SiUS34-907 External AppearanceGeneral Information 32. External Appearance2.1 Indoor Units2.2 Outdoor UnitsCeiling-mounted cassette type (Multi flow)FX

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1113.3 “A3 ” Malfunction of Drain Level Control System (S1L)Remote Co

Troubleshooting by Indication on the Remote Controller SiUS34-907112 TroubleshootingTroubleshootingIs power supply208~230V provided? NOProvide 208~230

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1133.4 “A6” Fan Motor (M1F) Lock, OverloadRemote Controller DisplayA6

Troubleshooting by Indication on the Remote Controller SiUS34-907114 TroubleshootingTroubleshooting*1. If any junction connector is provided between t

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 115“A6” Malfunction of Indoor Unit Fan MotorRemote Controller Display

Troubleshooting by Indication on the Remote Controller SiUS34-907116 TroubleshootingRemote Controller DisplayA6Applicable ModelsFXMQMethod of Malfunct

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 117TroubleshootingTurn off the power and wait for 10 minutes.Remove t

Troubleshooting by Indication on the Remote Controller SiUS34-907118 Troubleshooting*1. Measurement of power wire connector.Remove the X1A connector f

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1193.5 “A7 ” Malfunction of Swing Flap Motor (M1S)Remote Controller D

Troubleshooting by Indication on the Remote Controller SiUS34-907120 TroubleshootingTroubleshootingProvide 208~230V power supply.Is power supply208~23

Capacity Range SiUS34-9074 General Information3. Capacity RangeOutdoor UnitsIndoor UnitsModel RXYMQCapacity Range 3 ton 4 tonCapacity Index 36P 48PNo

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1213.6 “A9 ” Malfunction of Moving Part of Electronic Expansion Valve

Troubleshooting by Indication on the Remote Controller SiUS34-907122 Troubleshooting∗1: Coil check method for the moving part of the electronic expans

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1233.7 “AF ” Drain Level above LimitRemote Controller DisplayAFApplic

Troubleshooting by Indication on the Remote Controller SiUS34-907124 Troubleshooting3.8 “AJ ” Malfunction of Capacity Determination DeviceRemote contr

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1253.9 “C4 ” Malfunction of Thermistor (R2T) for Heat ExchangerRemote

Troubleshooting by Indication on the Remote Controller SiUS34-907126 Troubleshooting3.10 “C5” Malfunction of Thermistor (R3T) for Gas PipeRemote Contr

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1273.11 “C9” Malfunction of Thermistor (R1T) for Suction AirRemote Co

Troubleshooting by Indication on the Remote Controller SiUS34-907128 Troubleshooting3.12 “CJ” Malfunction of Thermostat Sensor in Remote ControllerRem

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1293.13 “E1” PCB DefectRemote Controller DisplayE1Applicable ModelsRX

Troubleshooting by Indication on the Remote Controller SiUS34-907130 Troubleshooting3.14 “E3” Actuation of High Pressure SwitchRemote Controller Displ

SiUS34-907Specifications 5Part 2Specifications1. Specifications ...

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 131TroubleshootingReplace the high pressure switch.Is the high pressu

Troubleshooting by Indication on the Remote Controller SiUS34-907132 Troubleshooting*1: Make a comparison between the voltage of the pressure sensor a

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1333.15 “E4” Actuation of Low Pressure SensorRemote Controller Displa

Troubleshooting by Indication on the Remote Controller SiUS34-907134 TroubleshootingTroubleshooting*1: Make a comparison between the voltage of the pr

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1353.16 “E5” Inverter Compressor Motor LockRemote Controller DisplayE

Troubleshooting by Indication on the Remote Controller SiUS34-907136 TroubleshootingTroubleshootingPower ONUVWCheck if the wiring has any error in mis

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 137*1: Pressure difference between high pressure and low pressure bef

Troubleshooting by Indication on the Remote Controller SiUS34-907138 Troubleshooting3.17 “E7” Malfunction of Outdoor Unit Fan MotorRemote Controller D

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 139TroubleshootingCautionBe sure to turn off the power switch before

Troubleshooting by Indication on the Remote Controller SiUS34-907140 TroubleshootingAReplace the PCB (A1P).No continuity of fuse (F6U) on mainPCB (A1P

Specifications SiUS34-9076 Specifications1. Specifications1.1 Outdoor UnitsHeat Pump 60Hz <RXYMQ-PVJU>Notes:1 Indoor temp. : 80°FDB (27°CDB), 6

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1413.18 “E9” Malfunction of Moving Part of Electronic Expansion Valve

Troubleshooting by Indication on the Remote Controller SiUS34-907142 TroubleshootingTroubleshooting∗ Make measurement of resistance between the connec

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1433.19 “F3” Abnormal Discharge Pipe Temperature (R2T)Remote Controll

Troubleshooting by Indication on the Remote Controller SiUS34-907144 TroubleshootingTroubleshooting*1: Compare the resistance value of discharge pipe

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1453.20 “F6” Refrigerant OverchargedRemote Controller DisplayF6Applic

Troubleshooting by Indication on the Remote Controller SiUS34-907146 Troubleshooting3.21 “H9” Malfunction of Thermistor (R1T) for Outdoor AirRemote Co

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1473.22 “J3” Malfunction of Discharge Pipe Thermistor (R2T)Remote Con

Troubleshooting by Indication on the Remote Controller SiUS34-907148 Troubleshooting3.23 “J5” Malfunction of Thermistor (R3T, R5T) for Suction Pipe 1,

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1493.24 “J6” Malfunction of Thermistor (R4T) for Outdoor Unit Heat Ex

Troubleshooting by Indication on the Remote Controller SiUS34-907150 Troubleshooting3.25 “J7” Malfunction of Thermistor (R7T) for Outdoor Unit Liquid

SiUS34-907 SpecificationsSpecifications 71.2 Indoor UnitsCeiling Mounted Cassette Type (Multi-flow) Notes:1 Nominal cooling capacities are based on t

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1513.26 “J9” Malfunction of Subcooling Heat Exchanger Gas Pipe Thermi

Troubleshooting by Indication on the Remote Controller SiUS34-907152 Troubleshooting3.27 “JA” Malfunction of High Pressure SensorRemote Controller Dis

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 153Troubleshooting∗1: Voltage measurement point∗2: Refer to “Pressure

Troubleshooting by Indication on the Remote Controller SiUS34-907154 Troubleshooting3.28 “JC” Malfunction of Low Pressure SensorRemote Controller Disp

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 155TroubleshootingReplace the low pressure sensor.Are thecharacterist

Troubleshooting by Indication on the Remote Controller SiUS34-907156 Troubleshooting∗1: Voltage measurement point∗2: Refer to “Pressure Sensor, Pressu

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1573.29 “L1” Malfunction of PCBRemote Controller DisplayL1Applicable

Troubleshooting by Indication on the Remote Controller SiUS34-907158 TroubleshootingTroubleshooting : Refer to the information on P.213.CHECK 4Check i

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1593.30 “L4” Malfunction of Inverter Radiation Fin Temperature RiseRe

Troubleshooting by Indication on the Remote Controller SiUS34-907160 TroubleshootingTroubleshootingFaulty radiation from the power unit• Blocked air s

Specifications SiUS34-9078 SpecificationsCeiling Mounted Cassette Type (Multi-flow)Notes:1 Nominal cooling capacities are based on the following cond

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 161Main PCB∗ Refer to “Thermistor Resistance / Temperature Characteri

Troubleshooting by Indication on the Remote Controller SiUS34-907162 Troubleshooting3.31 “L5” Inverter Compressor AbnormalRemote Controller DisplayL5A

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 163Troubleshooting Compressor inspection : Refer to the information o

Troubleshooting by Indication on the Remote Controller SiUS34-907164 Troubleshooting3.32 “L8” Inverter Current AbnormalRemote Controller DisplayL8Appl

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 165Troubleshooting : Refer to the information on P.213.Power OFFOpen

Troubleshooting by Indication on the Remote Controller SiUS34-907166 Troubleshooting3.33 “L9” Inverter Compressor Start up ErrorRemote Controller Disp

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 167TroubleshootingCheck if it is the first time to start after instal

Troubleshooting by Indication on the Remote Controller SiUS34-907168 Troubleshooting : Refer to the information on P.213.Check if the power transistor

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1693.34 “P1” High Voltage of Capacitor in Main Inverter CircuitRemote

Troubleshooting by Indication on the Remote Controller SiUS34-907170 TroubleshootingTroubleshooting*1.Measure voltage at the X1M power supply terminal

SiUS34-907 SpecificationsSpecifications 94 Way Ceiling Mounted Cassette Unit (2’×2’)Notes:1 Nominal cooling capacities are based on the following con

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1713.35 “P4” Malfunction of Inverter Radiating Fin Temperature Rise S

Troubleshooting by Indication on the Remote Controller SiUS34-907172 TroubleshootingMain PCB∗ Refer to “Thermistor Resistance / Temperature Characteri

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1733.36 “U0” Low Pressure Drop Due to Refrigerant Shortage or Electro

Troubleshooting by Indication on the Remote Controller SiUS34-907174 TroubleshootingTroubleshooting*1: Check the low pressure value by using pressure

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1753.37 “U2” Power Supply Insufficient or Instantaneous FailureRemote

Troubleshooting by Indication on the Remote Controller SiUS34-907176 TroubleshootingTroubleshootingNOAPower ONPower OFFOnsite causes.Make proper wire

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 177Power OFFPower ONNONOReplace the main PCB.*If the PCB replaced is

Troubleshooting by Indication on the Remote Controller SiUS34-907178 Troubleshooting3.38 “U3” Check Operation is not ExecutedRemote Controller Display

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1793.39 “U4” Malfunction of Transmission between Indoor Units and Out

Troubleshooting by Indication on the Remote Controller SiUS34-907180 TroubleshootingTroubleshootingCheck if the indoor/outdoor, outdoor/ outdoor conne

Specifications SiUS34-90710 SpecificationsSlim Ceiling Mounted Duct TypeNotes:1 Nominal cooling capacities are based on the following conditions: Ret

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 181Check if the indoor/outdoor, outdoor/outdoor connecting wires are

Troubleshooting by Indication on the Remote Controller SiUS34-907182 Troubleshooting()Continue operation.Check if all the units indicate “U9”.The indo

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1833.40 “U5” Malfunction of Transmission between Remote Controller an

Troubleshooting by Indication on the Remote Controller SiUS34-907184 TroubleshootingTroubleshootingSet one remote controller to "SUB"; turn

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1853.41 “U8” Malfunction of Transmission between Main and Sub Remote

Troubleshooting by Indication on the Remote Controller SiUS34-907186 Troubleshooting3.42 “U9” Malfunction of Transmission between Indoor Units and Out

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1873.43 “UA” Improper Combination of Indoor and Outdoor Units etc.Rem

Troubleshooting by Indication on the Remote Controller SiUS34-907188 TroubleshootingConfirmation of malfunction 3Confirmation of malfunction 4Diagnosi

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 189Confirmation of malfunction 3 Confirmation of Replace the main PCB

Troubleshooting by Indication on the Remote Controller SiUS34-907190 Troubleshooting3.44 “UC” Address Duplication of Centralized Remote ControllerRemo

SiUS34-907Table of Contents iR-410AHeat Pump 60Hz1. Introduction ...

SiUS34-907 SpecificationsSpecifications 11Slim Ceiling Mounted Duct TypeNotes:1 Nominal cooling capacities are based on the following conditions: Ret

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1913.45 “UE” Malfunction of Transmission between Centralized Remote C

Troubleshooting by Indication on the Remote Controller SiUS34-907192 TroubleshootingTroubleshootingCheck the indoor unit for which “UE” is displayed.

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 193 : Refer to the information on P.217.Check the transmission wiring

Troubleshooting by Indication on the Remote Controller SiUS34-907194 Troubleshooting3.46 “UF” System is not Set yetRemote Controller DisplayUFApplicab

SiUS34-907 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1953.47 “UH” Malfunction of System, Refrigerant System Address Undefi

Troubleshooting by Indication on the Remote Controller SiUS34-907196 TroubleshootingTroubleshootingNormalDoesa malfunctionoccur even after 12minutes e

SiUS34-907 Troubleshooting (OP: Centralized Remote Controller)Troubleshooting 1974. Troubleshooting (OP: Centralized Remote Controller)4.1 “M1” PCB De

Troubleshooting (OP: Centralized Remote Controller) SiUS34-907198 Troubleshooting4.2 “M8” Malfunction of Transmission between Optional Controllers for

SiUS34-907 Troubleshooting (OP: Centralized Remote Controller)Troubleshooting 199Troubleshooting*1: Display screen control using the intelligent Touch

Troubleshooting (OP: Centralized Remote Controller) SiUS34-907200 Troubleshooting4.3 “MA” Improper Combination of Optional Controllers for Centralized

Specifications SiUS34-90712 SpecificationsCeiling Mounted Duct TypeNotes: 1 Nominal cooling capacities are based on the following conditions: Return

SiUS34-907 Troubleshooting (OP: Centralized Remote Controller)Troubleshooting 201TroubleshootingNot available for combined use with the remote control

Troubleshooting (OP: Centralized Remote Controller) SiUS34-907202 Troubleshooting4.4 “MC” Address Duplication, Improper SettingRemote Controller Displ

SiUS34-907 Troubleshooting (OP: Centralized Remote Controller)Troubleshooting 203Troubleshooting : Refer to the information on P.219.Reset the power s

Troubleshooting (OP: Unified ON/OFF Controller) SiUS34-907204 Troubleshooting5. Troubleshooting (OP: Unified ON/OFF Controller)5.1 Operation Lamp Blin

SiUS34-907 Troubleshooting (OP: Unified ON/OFF Controller)Troubleshooting 205TroubleshootingDiagnose the cause with the air conditioner's failure

Troubleshooting (OP: Unified ON/OFF Controller) SiUS34-907206 Troubleshooting5.2 Display “Under Centralized Control” Blinks (Repeats Single Blink)Remo

SiUS34-907 Troubleshooting (OP: Unified ON/OFF Controller)Troubleshooting 207TroubleshootingReset power supply simultaneously for all optional control

Troubleshooting (OP: Unified ON/OFF Controller) SiUS34-907208 TroubleshootingIs thewiring adaptor forelectrical appendicesconnected?Schedule timer and

SiUS34-907 Troubleshooting (OP: Unified ON/OFF Controller)Troubleshooting 2095.3 Display “Under Centralized Control” Blinks (Repeats Double Blink)Remo

SiUS34-907210 Troubleshooting Check for Causes of Rise in High PressureReferring to the Fault Tree Analysis (FTA) shown below, probe the faulty points

SiUS34-907 SpecificationsSpecifications 13Ceiling Mounted Duct TypeNotes: 1 Nominal cooling capacities are based on the following conditions: Return

SiUS34-907Troubleshooting 211 Check for Causes of Drop in Low PressureReferring to the Fault Tree Analysis (FTA) shown below, probe the faulty points.

SiUS34-907212 Troubleshooting Check for Fan Motor Connector(1) Turn the power supply off.(2) With the fan motor connector disconnected, measure the re

SiUS34-907Troubleshooting 213 Power Transistor CheckPerform the following procedures prior to check.(1) Power Off.(2) Remove all the wiring connected

SiUS34-907214 Troubleshooting[PCB and Circuit Diagram]P3UV WN3J1J2J3P1P1 P2IGBTX11AUVWL1L2L3X10ADMK2P3N3J1J2J3

SiUS34-907Troubleshooting 215Check on connector of fan motor (Power supply wire)(1) Turn off the power supply.Measure the resistance between phases of

SiUS34-907216 Troubleshooting Check the Factors of Overheat OperationIdentify the defective points referring to the Fault Tree Analysis (FTA) as follo

SiUS34-907Troubleshooting 217 Broken Wire Check of the Connecting Wires1. Procedure for checking outdoor-outdoor unit transmission wiring for broken w

SiUS34-907218 Troubleshooting Master Unit Central Connector Setting TableThe master unit central setting connector (CN1/X1A) is mounted at the factory

SiUS34-907Troubleshooting 219 Master-Slave Unit Setting TableCombination of intelligent Touch Controller and Centralized Remote ControllerCRC: Central

SiUS34-907220 Troubleshooting Method of Replacing the Inverter’s Power Transistors ModulesChecking failures in power semiconductors mounted on inverte

Specifications SiUS34-90714 SpecificationsCeiling Mounted Duct TypeNotes: 1 Nominal cooling capacities are based on the following conditions: Return

SiUS34-907Troubleshooting 221Power module checkingWhen using the digital type of multiple tester, make measurement in diode check mode.*There needs to

SiUS34-907222 AppendixPart 8Appendix1. Piping Diagrams...2231.1 Out

SiUS34-907 Piping DiagramsAppendix 2231. Piping Diagrams1.1 Outdoor UnitRXYMQ36 · 48PVJUC: 3D65366S1NPLS1PHS1NPH

Piping Diagrams SiUS34-907224 Appendix1.2 Indoor UnitFXFQ, FXHQ4D024460D(1)(2)(3)(4)Code Name Code Main function(1) Electronic expansion valve Y1EUsed

SiUS34-907 Piping DiagramsAppendix 225FXZQ Refrigerant pipe connection port diametersFXDQ Refrigerant pipe connection port diameters4D040157(in)Mode

Piping Diagrams SiUS34-907226 AppendixFXMQ, FXLQ, FXNQ Refrigerant pipe connection port diameters4D034245D(in)Model Gas LiquidFXMQ07 / 09 / 12 / 18PV

SiUS34-907 Wiring DiagramsAppendix 2272. Wiring Diagrams2.1 Outdoor Unit2.1.1 Heat PumpRXYMQ36 · 48PVJU3D065263

Wiring Diagrams SiUS34-907228 Appendix2.2 Field WiringRXYMQ36 / 48PVJU3D065370

SiUS34-907 Wiring DiagramsAppendix 2292.3 Indoor UnitFXFQ12M / 18M / 24M / 30M / 36MVJU3D042620C

Wiring Diagrams SiUS34-907230 AppendixFXZQ07M / 09M / 12M / 18MVJU3D059263

SiUS34-907 SpecificationsSpecifications 15Ceiling Suspended TypeNotes:1 Nominal cooling capacities are based on the following conditions: Return air

SiUS34-907 Wiring DiagramsAppendix 231FXDQ07M / 09M / 12M / 18M / 24MVJU3D050501A

Wiring Diagrams SiUS34-907232 AppendixFXMQ07P / 09P / 12P / 18P / 24P / 30P / 36P / 48PVJU3D065984A

SiUS34-907 Wiring DiagramsAppendix 233FXHQ12M / 24M / 36MVJU3D048116A

Wiring Diagrams SiUS34-907234 AppendixFXAQ07M / 09M / 12M / 18M / 24MVJU3D046039D

SiUS34-907 Wiring DiagramsAppendix 235FXLQ12M / 18M / 24MVJUFXNQ12M / 18M / 24MVJU3D045644A

Option List SiUS34-907236 Appendix3. Option List3.1 Option List of ControllersOptional Accessories of Operation Control SystemC:3D043022DNotes:1. Inst

SiUS34-907 Option ListAppendix 2373.2 Option List of Outdoor UnitRXYQM36 · 48MVJUC: 3D047388BOptional accessories RXYMQ36MVJU, RXM48MVJUCool/Heat Sele

Option List SiUS34-907238 Appendix

SiUS34-907Appendix4. Example of ConnectionExample of connection(Connection of 8 indoor units Heat Pump system)Branch with REFNET jointBranch with REFN

Example of Connection240

Specifications SiUS34-90716 SpecificationsWall Mounted TypeNotes:1 Nominal cooling capacities are based on the following conditions: Return air tempe

SiUS34-907 Thermistor Resistance / Temperature CharacteristicsAppendix 2415. Thermistor Resistance / Temperature CharacteristicsIndoor unit For air su

Thermistor Resistance / Temperature Characteristics SiUS34-907242 AppendixOutdoor Unit Thermistors for Discharge Pipe (R2T)T°F T°C kΩ T°F T°C kΩ T°F T

SiUS34-907 Pressure SensorAppendix 2436. Pressure SensorHigh Pressure (PH)Low Pressure (PL)VH : Output Voltage [High Side] VDCVL : Output Voltage [Low

SiUS34-907244 Precautions for New Refrigerant (R-410A)Part 9Precautions for NewRefrigerant (R-410A)1. Precautions for New Refrigerant (R-410A) ...

SiUS34-907 Precautions for New Refrigerant (R-410A)Precautions for New Refrigerant (R-410A) 2451. Precautions for New Refrigerant (R-410A)1.1 Outline1

Precautions for New Refrigerant (R-410A) SiUS34-907246 Precautions for New Refrigerant (R-410A) Thermodynamic characteristic of R-410ATemperature(˚F)

SiUS34-907 Precautions for New Refrigerant (R-410A)Precautions for New Refrigerant (R-410A) 2471.2 Refrigerant Cylinders Cylinder specifications • T

Precautions for New Refrigerant (R-410A) SiUS34-907248 Precautions for New Refrigerant (R-410A)1.3 Service ToolsR-410A is used under higher working pr

SiUS34-907 Precautions for New Refrigerant (R-410A)Precautions for New Refrigerant (R-410A) 2491. Flaring tool Specifications • Dimension A Differe

Precautions for New Refrigerant (R-410A) SiUS34-907250 Precautions for New Refrigerant (R-410A)2. Torque wrench Specifications • Dimension B Unit:in

SiUS34-907 SpecificationsSpecifications 17Wall Mounted TypeNotes:1 Nominal cooling capacities are based on the following conditions: Return air tempe

SiUS34-907 Precautions for New Refrigerant (R-410A)Precautions for New Refrigerant (R-410A) 2514. Leak tester Specifications • Hydrogen detecting ty

Precautions for New Refrigerant (R-410A) SiUS34-907252 Precautions for New Refrigerant (R-410A) • Low pressure gauge– 14.5 to 551 psi (– 76 cmHg to 3

SiUS34-907 Precautions for New Refrigerant (R-410A)Precautions for New Refrigerant (R-410A) 2539. Weigher for refrigerant charge Specifications • Hi

Precautions for New Refrigerant (R-410A) SiUS34-907254 Precautions for New Refrigerant (R-410A)

1645 Wallace Drive, Suite 110Carrollton, [email protected] ISO 9001 is a plant certification systemdefined by t

Specifications SiUS34-90718 SpecificationsFloor Standing TypeNotes:1 Nominal cooling capacities are based on the following conditions: Return air tem

SiUS34-907 SpecificationsSpecifications 19Concealed Floor Standing TypeNotes:1 Nominal cooling capacities are based on the following conditions: Retu

SiUS34-90720 List of Electrical and Functional PartsPart 3List of Electrical andFunctional Parts1. List of Electrical and Functional Parts ...

SiUS34-907ii Table of Contents3.4 Pump Down Residual Operation ... 403.5 Restart Standby.

SiUS34-907 List of Electrical and Functional PartsList of Electrical and Functional Parts 211. List of Electrical and Functional Parts1.1 Outdoor Unit

List of Electrical and Functional Parts SiUS34-90722 List of Electrical and Functional Parts1.2 Indoor UnitParts NameSymbolModelRemarkFXFQ12MVJUFXFQ18

SiUS34-907 List of Electrical and Functional PartsList of Electrical and Functional Parts 23Parts Name SymbolModelRemarkFXDQ07MVJUFXDQ09MVJUFXDQ12MVJU

List of Electrical and Functional Parts SiUS34-90724 List of Electrical and Functional PartsParts Name SymbolModelRemarkFXHQ12MVJUFXHQ24MVJUFXHQ36MVJU

SiUS34-907 List of Electrical and Functional PartsList of Electrical and Functional Parts 25Parts Name SymbolModelRemarkFXLQ12MVJUFXLQ18MVJUFXLQ24MVJU

SiUS34-90726 Refrigerant CircuitPart 4Refrigerant Circuit1. Refrigerant Circuit ...

SiUS34-907 Refrigerant CircuitRefrigerant Circuit 271. Refrigerant Circuit1.1 RXYMQ36 · 48PNo. in refrigerant system diagramSymbol Name Major Function

Refrigerant Circuit SiUS34-90728 Refrigerant CircuitS1PHS1NPHC : 3D065366APGNMOHFSETDDS1NPL

SiUS34-907 Functional Parts LayoutRefrigerant Circuit 292. Functional Parts Layout2.1 RXYMQ36 · 48PTHERMISTOR (SUCTION 2)R5T(MARKING COLOR:GREEN)S1PH

SiUS34-90730 FunctionPart 5Function1. Operation Mode ...312. Basi

SiUS34-907Table of Contents iii3.11 “C9” Malfunction of Thermistor (R1T) for Suction Air ... 1273.12 “CJ” Malfunction of

SiUS34-907 Operation ModeFunction 311. Operation ModeOperation instop modePressureequalizationprior to startupStartup control• Cooling startupcontrol•

Basic Control SiUS34-90732 Function2. Basic Control2.1 Normal Operation Cooling Operation Heating OperationHeating operation is not functional at a

SiUS34-907 Basic ControlFunction 332.2 Compressor PI ControlCompressor PI ControlCarries out the compressor capacity PI control to maintain Te at cons

Basic Control SiUS34-90734 Function2.3 Electronic Expansion Valve PI ControlMain Electronic Expansion Valve EV1 ControlCarries out the electronic expa

SiUS34-907 Basic ControlFunction 352.4 Cooling Operation Fan ControlIn cooling operation with low outdoor air temperature, this control is used to pro

Special Control SiUS34-90736 Function3. Special Control3.1 Startup ControlThis control is used to equalize the pressure in the front and back of the c

SiUS34-907 Special ControlFunction 373.2 Oil Return OperationIn order to prevent the compressor from running out of oil, the oil return operation is c

Special Control SiUS34-90738 Function3.2.2 Oil Return Operation in Heating Operation[Conditions to start]The heating oil-returning operation is starte

SiUS34-907 Special ControlFunction 393.3 Defrosting OperationThe defrost operation is performed to solve frost on the outdoor unit heat exchanger when

Special Control SiUS34-90740 Function3.4 Pump Down Residual OperationWhen activating compressor, if the liquid refrigerant remains in the heatexchange

SiUS34-907iv Table of Contents4.2 “M8” Malfunction of Transmission between Optional Controllers for Centralized Control...

SiUS34-907 Special ControlFunction 413.5 Restart StandbyRestart is stood by force to prevent frequent power-on/off and to equalize pressure in the ref

Protection Control SiUS34-90742 Function4. Protection Control4.1 High Pressure Protection ControlThis high-pressure protection control is used to prev

SiUS34-907 Protection ControlFunction 434.2 Low Pressure Protection ControlThis low pressure protection control is used to protect compressors against

Protection Control SiUS34-90744 Function4.3 Discharge Pipe Protection ControlThis discharge pipe protection control is used to protect the compressor

SiUS34-907 Protection ControlFunction 454.4 Inverter Protection ControlInverter current protection control and inverter fin temperature control are pe

Other Control SiUS34-90746 Function5. Other Control5.1 Demand OperationIn order to save the power consumption, the capacity of outdoor unit is saved w

SiUS34-907 Outline of Control (Indoor Unit)Function 476.1.2 When the Float Switch is Tripped while the Cooling Thermostat is OFF:*3. (Malfunction resi

Outline of Control (Indoor Unit) SiUS34-90748 Function6.1.4 When the Float Switch is Tripped and “AF” is Displayed on the Remote Controller:*4. (Malfu

SiUS34-907 Outline of Control (Indoor Unit)Function 496.2 Louver Control for Preventing Ceiling DirtWe have added a control feature that allows you to

Outline of Control (Indoor Unit) SiUS34-90750 Function6.3 Thermostat Sensor in Remote ControllerTemperature is controlled by both the thermostat senso

Safety Considerations SiUS34-907v1. Safety ConsiderationsRead these SAFETY CONSIDERATIONS carefully before performing any repair work. Comply with the

SiUS34-907 Outline of Control (Indoor Unit)Function 51HeatingWhen heating, the hot air rises to the top of the room, resulting in the temperature bein

Outline of Control (Indoor Unit) SiUS34-90752 Function6.4 Freeze PreventionFreeze Prevention by Off Cycle (Indoor Unit)When the temperature detected b

SiUS34-907 Outline of Control (Indoor Unit)Function 536.5 View of Operations of Swing FlapsSwing flaps work as following.FanFlap controlFCQ FHQ FAQHea

SiUS34-90754 Test OperationPart 6Test Operation1. Test Operation ...

SiUS34-907 Test OperationTest Operation 551. Test Operation1.1 Procedure and OutlineFollow the following procedure to conduct the initial test operati

Test Operation SiUS34-90756 Test Operation1.1.3 Check Operation* During check operation, mount front panel to avoid the misjudging.* Check operation i

SiUS34-907 Test OperationTest Operation 571.1.4 Confirmation on Normal Operation• Conduct normal unit operation after the check operation has been com

Outdoor Unit PCB Layout SiUS34-90758 Test Operation2. Outdoor Unit PCB LayoutOutdoor unit PCBCautionCover electric parts with an insulating sheet duri

SiUS34-907 Field SettingTest Operation 593. Field Setting3.1 Field Setting from Remote ControllerIndividual function of indoor unit can be changed fro

Field Setting SiUS34-90760 Test Operation6 Press Menu/OK button. Setting confirmation screen is displayed.Select 7 Yes and press Menu/OK button. Se

SiUS34-907 Safety Considerationsvimay generate toxic gases if it comes into contact with flames.•Do not repair the electrical components with wet hand

SiUS34-907 Field SettingTest Operation 613.1.2 Wireless Remote Controller - Indoor UnitBRC7C812BRC4C82BRC7E818BRC7E831. When in the normal mode, push

Field Setting SiUS34-90762 Test Operation3.1.3 Simplified Remote ControllerBRC2A51BRC2C511. Remove the upper part of remote controller.2. When in the

SiUS34-907 Field SettingTest Operation 633.1.4 Setting Contents and Code No. – VRV Indoor unit : Factory settingNotes :1. Settings are made simultaneo

Field Setting SiUS34-90764 Test Operation3.1.5 Applicable Range of Field setting∗1 Static pressure selectionCeiling mounted cassette typeSlim ceiling

SiUS34-907 Field SettingTest Operation 653.1.6 Detailed Explanation of Setting Modes(1) Filter Sign SettingIf switching the filter sign ON time, set a

Field Setting SiUS34-90766 Test Operation(6) External ON/OFF InputThis input is used for "ON/OFF operation" and "Protection device inpu

SiUS34-907 Field SettingTest Operation 67(10) Auto Restart after Power Failure ResetFor the air conditioners with no setting for the function (same as

Field Setting SiUS34-90768 Test Operation(13) Airflow Direction SettingSet the airflow direction of indoor units as given in the table below. (Set whe

SiUS34-907 Field SettingTest Operation 693.1.7 Centralized Control Group No. SettingBRC1E TypeIn order to conduct the centralized remote control using

Field Setting SiUS34-90770 Test OperationBRC7C Type / BRC7E Type / BRC4C Type Group No. setting by wireless remote controller for centralized control

Safety Considerations SiUS34-907vii1.3 PREFACEThank you for your continued patronage of Daikin products.This is the new service manual for Daikin&apos

SiUS34-907 Field SettingTest Operation 71Group No. Setting ExampleCautionWhen turning the power supply on, the unit may often not accept any operation

Field Setting SiUS34-90772 Test OperationHow to Select Operation ModeWhether operation by remote controller will be possible or not for turning on/off

SiUS34-907 Field SettingTest Operation 733.2 Field Setting from Outdoor Unit3.2.1 Setting by Dip SwitchesThe following field settings are made by dip

Field Setting SiUS34-90774 Test OperationCaution DIP switch Setting after changing the main PCB(A1P) to spare parts PCBWhen you change the main PCB(A1

SiUS34-907 Field SettingTest Operation 75 Setting by push button switchesThe following settings are made by push button switches on PCB.(Factory sett

Field Setting SiUS34-90776 Test Operationa. “Setting mode 1”This mode is used to set and check the following items.1. Set items ············ In order

SiUS34-907 Field SettingTest Operation 77The numbers in the "No." column represent the number of times to press the SET (BS2) button.No. Set

Field Setting SiUS34-90778 Test OperationThe numbers in the "No." column represent the number of times to press the SET (BS2) button.No.Sett

SiUS34-907 Field SettingTest Operation 79The numbers in the "No." column represent the number of times to press the SET (BS2) button.No.Sett

Field Setting SiUS34-90780 Test OperationThe numbers in the "No." column represent the number of times to press the SET (BS2) button.Setting

SiUS34-907 Safety Considerationsviii

SiUS34-907 Field SettingTest Operation 81Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and confirm the data for each

Field Setting SiUS34-90782 Test Operation3.2.2 Cool / Heat Mode SwitchingThere are the following 4 cool/heat switching modes. Set cool/heat separatel

SiUS34-907 Field SettingTest Operation 83 Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller It does n

Field Setting SiUS34-90784 Test Operation3.2.3 Setting of Low Noise Operation and Demand OperationSetting of Low Noise OperationBy connecting the exte

SiUS34-907 Field SettingTest Operation 85Setting of Demand OperationBy connecting the external contact input to the demand input of the outdoor unit e

Field Setting SiUS34-90786 Test Operation: ON : OFF l : BlinkSetting No.Setting contentsSetting No. indication Setting No. indication Setting

SiUS34-907 Field SettingTest Operation 873.2.4 Setting of Refrigerant Additional Charging Operation* When the outdoor unit is stopped and the entire q

Field Setting SiUS34-90788 Test Operation3.2.5 Setting of Refrigerant Recovery ModeWhen carrying out the refrigerant collection on site, fully open th

SiUS34-907 Field SettingTest Operation 893.2.6 Setting of Vacuuming ModeIn order to perform vacuuming operation at site, fully open the expansion valv

SiUS34-90790 TroubleshootingPart 7Troubleshooting1. Symptom-based Troubleshooting ................922. Tr