Daikin FDKS25CVMB Service Manual

SiENBE12-522ASuper Multi NXSerie DService Manual[Applied Models]!Inverter Multi : Cooling Only!Inverter Multi : Heat Pump

SiENBE12-522A Introductionix1.1.3 Inspection after RepairBe sure to use an exclusive power circuit for the equipment, and follow the technical standar

SiENBE12-522A Main FunctionsFunction and Control 891.7 Night Set ModeWhen the OFF timer is set, the Night Set circuit automatically activates.The Nigh

Main Functions SiENBE12-522A90 Function and Control1.8 ECONO ModeOutline FTK(X)S20-35D, CTK(X)S50DThe "ECONO mode" reduces the maximum opera

SiENBE12-522A Main FunctionsFunction and Control 911.9 INTELLIGENT EYEThis is the function that detects existence of humans in the room by a human mot

Main Functions SiENBE12-522A92 Function and Control" Since the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes

SiENBE12-522A Main FunctionsFunction and Control 931.10 HOME LEAVE OperationOutline In order to respond to the customer's need for immediate heat

Main Functions SiENBE12-522A94 Function and Control1.11 Inverter POWERFUL OperationOutline In order to exploit the cooling and heating capacity to ful

SiENBE12-522A Main FunctionsFunction and Control 951.12 Other Functions1.12.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast t

Main Functions SiENBE12-522A96 Function and Control1.12.7 Air Purifying Filter with Photocatalytic Deodorizing FunctionThis filter incorporates the be

SiENBE12-522A Function of Main Structural PartsFunction and Control 972. Function of Main Structural Parts2.1 Main Structural PartsHeat Pump ModelCool

Function of Main Structural Parts SiENBE12-522A98 Function and Control2.2 Function of Thermistor2.2.1 Heat Pump ModelA Outdoor Heat Exchanger Thermi

Introduction SiENBE12-522Ax1.1.4 Using IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is

SiENBE12-522A Function of Main Structural PartsFunction and Control 99D Indoor Heat Exchanger Thermistor (DCN)1. The indoor heat exchanger thermisto

Function of Main Structural Parts SiENBE12-522A100 Function and Control2.2.2 Cooling Only ModelA Outdoor Heat Exchanger Thermistor (DCB)1. The outdo

SiENBE12-522A Function of Main Structural PartsFunction and Control 101D Indoor Heat Exchanger Thermistor (DCN)1. The indoor heat exchanger thermist

Control Specification SiENBE12-522A102 Function and Control3. Control Specification3.1 Mode HierarchyOutline There are two modes; the mode selected in

SiENBE12-522A Control SpecificationFunction and Control 1033.2 Frequency ControlOutline Frequency that corresponds to each room’s capacity will be det

Control Specification SiENBE12-522A104 Function and Control2. Determine upper limit frequency$ Set a minimum value as an upper limit frequency among t

SiENBE12-522A Control SpecificationFunction and Control 1053.3 Controls at Mode Changing / Start-up3.3.1 Preheating OperationOutline Operate the inver

Control Specification SiENBE12-522A106 Function and Control3.4 Discharge Pipe ControlOutline The discharge pipe temperature is used as the compressor&

SiENBE12-522A Control SpecificationFunction and Control 1073.6 Freeze-up Protection ControlOutline During cooling operation, the signals being sent fr

Control Specification SiENBE12-522A108 Function and Control3.8 Fan ControlOutline Fan control is carried out with following functions.1. Fan ON contro

SiENBE12-522AList of Functions 1Part 1List of Functions1. List of Functions ...

SiENBE12-522A Control SpecificationFunction and Control 1093.10 Defrost ControlOutline Heat Pump OnlyDefrosting is carried out by the cooling cycle (r

Control Specification SiENBE12-522A110 Function and Control3.11 Low Hz High Pressure LimitOutline Heat Pump OnlySet the upper limit of high pressure i

SiENBE12-522A Control SpecificationFunction and Control 111Detail The followings are the examples of control which function in each mode by the electr

Control Specification SiENBE12-522A112 Function and Control3.12.1 Fully Closing with Power ONInitialize the electronic expansion valve when turning on

SiENBE12-522A Control SpecificationFunction and Control 1133.12.7 Disconnection of the Discharge Pipe ThermistorOutline Detect a disconnected discharg

Control Specification SiENBE12-522A114 Function and Control3.13 Malfunctions3.13.1 Sensor Malfunction DetectionSensor malfunction may occur either in

SiENBE12-522A Control SpecificationFunction and Control 115Detail Judgment by Input CurrentWhen an output frequency is exceeds 55 Hz and the input cur

Control Specification SiENBE12-522A116 Function and Control3.15 Wiring-Error CheckOutline The convenient Wiring Error Check function is designed for t

SiENBE12-522A Control SpecificationFunction and Control 117Checking the current setting data on the microcomputer memoryThose data can be checked by l

Control Specification SiENBE12-522A118 Function and Control3.16 Additional Function3.16.1 Connection Pipe Condensation Preventing FunctionThis control

List of Functions SiENBE12-522A2 List of Functions1. List of Functions1.1 Cooling Only ModelsCategory FunctionsFTKS20-35D(2)VMW(L)(9)CTKS50D(2)VMW(L)F

SiENBE12-522A Control SpecificationFunction and Control 1193.16.5 Cooling / Heating Mode LockUse the S15 connector to set the unit to only cool or hea

Control Specification SiENBE12-522A120 Function and Control

SiENBE12-522ASystem Configuration 121Part 5System Configuration1. System Configuration...

System Configuration SiENBE12-522A122 System Configuration1. System Configuration1.1 Operation InstructionsAfter the installation and test operation o

SiENBE12-522A InstructionSystem Configuration 1232. Instruction 2.1 Manual Contents and Reference PageH : Illustrations are for wall mounted type FTXS

Instruction SiENBE12-522A124 System Configuration2.2 Safety PrecautionsREAD BEFORE OPERATIONSafety precautions•Keep this manual where the operator can

SiENBE12-522A InstructionSystem Configuration 125•Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not

Instruction SiENBE12-522A126 System Configuration2.3 Names of PartsFTK(X)S20/25/35D, CTK(X)S50DNames of parts"Indoor UnitON/OFF16 141315121345791

SiENBE12-522A InstructionSystem Configuration 127"Outdoor Unit"Indoor Unit1. Air filter2. Titanium Apatite Photocatalytic Air-Purifying Filt

Instruction SiENBE12-522A128 System Configuration"Remote Controller1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It di

SiENBE12-522A List of FunctionsList of Functions 3Category FunctionsFTKS50-71BVMBFDKS25·35CVMBCDKS50·60CVMBCategory FunctionsFTKS50-71BVMBFDKS25·35CVM

SiENBE12-522A InstructionSystem Configuration 129FTK(X)S20/25/35C, ATXS20/25/35D, ATXS20/25/35CNames of parts Indoor UnitONOFF13456791011214 15 16812

Instruction SiENBE12-522A130 System Configuration Outdoor Unit Indoor Unit1. Air filter2.Air purifying filter with photocatalyticdeodorizing functi

SiENBE12-522A InstructionSystem Configuration 131 Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays

Instruction SiENBE12-522A132 System ConfigurationFTK(X)S50/60/71B, ATXS50D, ATXS50CNames of parts Indoor Unit Main unit control panel71411121343151291

SiENBE12-522A InstructionSystem Configuration 133 Outdoor Unit Indoor Unit1.Air filter2. Air purifying filter with photocatalyticdeodorizing functi

Instruction SiENBE12-522A134 System Configuration Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:•It displays

SiENBE12-522A InstructionSystem Configuration 135FDK(X)S25/35C, CDK(X)S50/60C Names of partsIndoor Unit36891071452"

Instruction SiENBE12-522A136 System Configuration Outdoor Unit Indoor Unit1.Air outlet2. Air outlet grille (Field supply)• Appearance of the Air o

SiENBE12-522A InstructionSystem Configuration 137 Remote Controller1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displa

Instruction SiENBE12-522A138 System ConfigurationFLK(X)S25/35/50/60Names of parts Indoor UnitThe indoor unit can be installed either to the ceiling or

List of Functions SiENBE12-522A4 List of FunctionsCategory FunctionsFLKS25-60BVMBFVKS25-50BVMB3MKS50D(2)VMB4MKS58·75D(2)VMB4MKS90DVMBCategory Function

SiENBE12-522A InstructionSystem Configuration 139 Outdoor Unit Indoor Unit1. Louvres (vertical blades):The louvres are inside of the air outlet.2.

Instruction SiENBE12-522A140 System Configuration Remote Controller1. Signal Transmitter:• It sends signals to the indoor unit.2. Display:• It displa

SiENBE12-522A InstructionSystem Configuration 141FVK(X)S25/35/50Names of parts Indoor Unit Opening the front grilleHow to open the grilleCAUTIONBefore

Instruction SiENBE12-522A142 System Configuration Outdoor Unit Indoor Unit1. Photocatalytic deodorizing filter andAir purifying filter:•These filte

SiENBE12-522A InstructionSystem Configuration 143 Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays

Instruction SiENBE12-522A144 System Configuration2.4 Preparation before OperationPreparation Before Operation To set the batteries1. Press with a fi

SiENBE12-522A InstructionSystem Configuration 145Preparation Before Operation To operate the remote controller• To use the remote controller, aim the

Instruction SiENBE12-522A146 System Configuration To set the clock1. Press “CLOCK button”.is displayed.blinks.2. Press “TIMER setting button” to set t

SiENBE12-522A InstructionSystem Configuration 1472.5 AUTO · DRY · COOL · HEAT · FAN OperationOPERATIONAUTO · DRY · COOL · HEAT · FAN OperationThe air

Instruction SiENBE12-522A148 System Configuration To change the air flow rate setting5. Press “FAN setting button”.•Indoor unit quiet operationWhen th

SiENBE12-522A List of FunctionsList of Functions 5Category FunctionsFTKS20-35DAVMW(L)FTKS20-35D3VMW(L)FTKS20-35CAVMBCategory FunctionsFTKS20-35DAVMW(L

SiENBE12-522A InstructionSystem Configuration 1492.6 Adjusting the Air Flow DirectionFTK(X)S20/25/35D, CTK(X)S50DAdjusting the Air Flow DirectionYou c

Instruction SiENBE12-522A150 System Configuration"To start COMFORT AIRFLOW operation3. Press “COMFORT AIRFLOW button”.The flap position will chan

SiENBE12-522A InstructionSystem Configuration 151FTK(X)S20/25/35C, ATXS20/25/35D, ATXS20/25/35CAdjusting the Air Flow DirectionYou can adjust the air

Instruction SiENBE12-522A152 System Configuration To adjust the vertical blades (louvers)Hold the knob and move the louvers.(You will find a knob on t

SiENBE12-522A InstructionSystem Configuration 153FTK(X)S50/60/71B, ATXS50D, ATXS50CAdjusting the Air Flow DirectionYou can adjust the air flow directi

Instruction SiENBE12-522A154 System Configuration" To 3-D Airflow1. 3. Press the “SWING button ” and the “SWING button ”:the “ ” and “ ” displa

SiENBE12-522A InstructionSystem Configuration 155FLK(X)S25/35/50/60Adjusting the Air Flow DirectionYou can adjust the air flow direction to increase y

Instruction SiENBE12-522A156 System Configuration To adjust the vertical blades (louvres)• When adjusting the louvre, use a robust and stable stool a

SiENBE12-522A InstructionSystem Configuration 157FVK(X)S25/35/50Adjusting the Air Flow DirectionYou can adjust the air flow direction to increase your

Instruction SiENBE12-522A158 System Configuration Air flow selection•Make air flow selection according to what suits you.When setting the air flow sel

List of Functions SiENBE12-522A6 List of FunctionsCategory FunctionsFTKS71BAVMBFDKS25·35CAVMBCategory FunctionsFTKS71BAVMBFDKS25·35CAVMBBasic Function

SiENBE12-522A InstructionSystem Configuration 1592.7 POWERFUL OperationPOWERFUL OperationPOWERFUL operation quickly maximizes the cooling (heating) ef

Instruction SiENBE12-522A160 System Configuration2.8 OUTDOOR UNIT SILENT OperationOUTDOOR UNIT SILENT OperationOUTDOOR UNIT SILENT operation lowers t

SiENBE12-522A InstructionSystem Configuration 1612.9 ECONO OperationECONO OperationECONO operation is a function which enables efficient operation by

Instruction SiENBE12-522A162 System Configuration2.10 HOME LEAVE OperationHOME LEAVE OperationHOME LEAVE operation is a function which allows you to r

SiENBE12-522A InstructionSystem Configuration 163 What’s the HOME LEAVE operationIs there a set temperature and air flow rate which is most comfortabl

Instruction SiENBE12-522A164 System Configuration2.11 INTELLIGENT EYE OperationFTK(X)S20/25/35D, CTK(X)S50DINTELLIGENT EYE Operation“INTELLIGENT EYE”

SiENBE12-522A InstructionSystem Configuration 165INTELLIGENT EYE Operation“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTI

Instruction SiENBE12-522A166 System ConfigurationFTK(X)S20/25/35C, ATXS20/25/35D, ATXS20/25/35CINTELLIGENT EYE Operation“INTELLIGENT EYE” is the infra

SiENBE12-522A InstructionSystem Configuration 167 To adjust the angle of the INTELLIGENT EYE sensor• You can adjust the angle of the INTELLIGENT EYE s

Instruction SiENBE12-522A168 System ConfigurationFTK(X)S50/60/71B, ATXS50D, ATXS50CINTELLIGENT EYE Operation“INTELLIGENT EYE” is the infrared sensor w

SiENBE12-522A List of FunctionsList of Functions 7Category FunctionsFLKS25-60BAVMBFVKS25-50BAVMB4MKS75D3VMB4MKS90DAVMBCategory FunctionsFLKS25-60BAVMB

SiENBE12-522A InstructionSystem Configuration 169“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTION###"Energy saving

Instruction SiENBE12-522A170 System Configuration2.12 TIMER OperationTIMER OperationTimer functions are useful for automatically switching the air con

SiENBE12-522A InstructionSystem Configuration 171 To use ON TIMER operation• Check that the clock is correct. If not, set the clock to the present tim

Instruction SiENBE12-522A172 System Configuration2.13 Note for Multi SystemNote for Multi System〈〈 What is a “Multi System”? 〉〉This system has one out

SiENBE12-522A InstructionSystem Configuration 173 Priority Room SettingThe Priority Room Setting requires initial programming during installation. Ple

Instruction SiENBE12-522A174 System Configuration2.14 Care and CleaningFTK(X)S20/25/35D, CTK(X)S50DCare and CleaningCAUTION Indoor unit, Outdoor unit

SiENBE12-522A InstructionSystem Configuration 1751. Open the front panel. 2. Pull out the air filters.•Push a little upwards the tab at the center of

Instruction SiENBE12-522A176 System ConfigurationNOTECheck Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry o

SiENBE12-522A InstructionSystem Configuration 177FTK(X)S20/25/35C, ATXS20/25/35D, ATXS20/25/35CCARECare and CleaningCAUTION Indoor unit, Outdoor uni

Instruction SiENBE12-522A178 System Configuration1. Open the front grille. 2. Pull out the air filters.•Push a little upwards the tab at the center of

List of Functions SiENBE12-522A8 List of Functions1.2 Heat Pump ModelsCategory FunctionsFTXS20-35D(2)VMW(L)(9)CTXS50D(2)VMW(L)FTXS20-35CVMB(9)(8)Categ

SiENBE12-522A InstructionSystem Configuration 179 Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the in

Instruction SiENBE12-522A180 System ConfigurationFTK(X)S50/60/71B, ATXS50D, ATXS50CCARECare and CleaningCAUTION" Indoor unit, Outdoor unit and Re

SiENBE12-522A InstructionSystem Configuration 1811. Open the front grille. 2. Pull out the air filters.•Push a little upwards the tab at the center of

Instruction SiENBE12-522A182 System Configuration Check" Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dr

SiENBE12-522A InstructionSystem Configuration 183FDK(X)S25/35C, CDK(X)S50/60CCARECare and CleaningCAUTION "Cleaning the air filter.1.Removing th

Instruction SiENBE12-522A184 System Configuration"Cleaning the drain pan•Clean the drain pan periodically, or drain piping may be clogged with du

SiENBE12-522A InstructionSystem Configuration 185FLK(X)S25/35/50/60Care and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe t

Instruction SiENBE12-522A186 System Configuration1. Open the front grille.2. Pull out the air filters.• Push upwards the tab at the center of each air

SiENBE12-522A InstructionSystem Configuration 187Check"Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry

Instruction SiENBE12-522A188 System ConfigurationFVK(X)S25/35/50Care and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe them

SiENBE12-522ATable of Contents iSUPER MULTI NXD-Series!Cooling OnlyIndoor UnitFTKS20D(2)VMW(L)(9) FTKS20CVMB(9) FDKS25CVMB FLKS25BVMBFTKS25D(2)VMW(L)(

SiENBE12-522A List of FunctionsList of Functions 9Category FunctionsFTXS50-71BVMBFDXS25·35CVMBCDXS50·60CVMBCategory FunctionsFTXS50-71BVMBFDXS25·35CVM

SiENBE12-522A InstructionSystem Configuration 1891. Open the front grille.2. Remove the air filter.•Press the claws on the right and left of the air f

Instruction SiENBE12-522A190 System ConfigurationCheck"Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry

SiENBE12-522A InstructionSystem Configuration 1912.15 Troubleshooting TROUBLE SHOOTINGTrouble ShootingThe following cases are not air conditioner trou

Instruction SiENBE12-522A192 System ConfigurationPlease check again before calling a repair person.Check again.Case CheckThe air conditioner does not

SiENBE12-522A InstructionSystem Configuration 193WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OF

Instruction SiENBE12-522A194 System ConfigurationFAULT DIAGNOSIS BY REMOTE CONTROLLERIn the ARC433A series, the temperature display sections on the ma

SiENBE12-522A InstructionSystem Configuration 195LED ON OUTDOOR UNIT PCB 3MXS, 3MKS, 4MXS, 4MKS seriesLED ON OUTDOOR UNIT PCB 2MXS, 2MKS ser

Instruction SiENBE12-522A196 System Configuration

SiENBE12-522AService Diagnosis 197Part 6Service Diagnosis1. Caution for Diagnosis...

Caution for Diagnosis SiENBE12-522A198 Service Diagnosis1. Caution for Diagnosis1.1 Troubleshooting with Operation LampThe operation lamp flashes when

List of Functions SiENBE12-522A10 List of FunctionsCategory FunctionsFLXS25-60BVMBFVXS25-50BVMBCategory FunctionsFLXS25-60BVMBFVXS25-50BVMBBasic Funct

SiENBE12-522A Caution for DiagnosisService Diagnosis 199Caution: Operation stops suddenly. (Operation lamp blinks.)Cause of above trouble could be &qu

Problem Symptoms and Measures SiENBE12-522A200 Service Diagnosis2. Problem Symptoms and MeasuresProblem Symptom Check Item Details of Measure Page No.

SiENBE12-522A Service Check FunctionService Diagnosis 2013. Service Check FunctionIn the ARC433A series remote controller, the temperature display sec

Service Check Function SiENBE12-522A202 Service DiagnosisCheck Method 21. Enter the diagnosis mode.Press the 3 buttons (TEMPs,TEMPt, MODE) simultaneou

SiENBE12-522A Service Check FunctionService Diagnosis 2035. Press the TEMP button.Press TEMPs or TEMPt and change the digit until you hear the sound o

Code Indication on the Remote Controller SiENBE12-522A204 Service Diagnosis4. Code Indication on the Remote Controller4.1 Error Codes and Description

SiENBE12-522A TroubleshootingService Diagnosis 2055. Troubleshooting5.1 Indoor Units - : Not used for troubleshooting ∗ : Varies depending on the case

Troubleshooting SiENBE12-522A206 Service Diagnosis5.2 Outdoor Units4: ON, 1: OFF, 5: BlinksGreen : Flashes when in normal conditionRed : OFF in normal

SiENBE12-522A TroubleshootingService Diagnosis 2075.3 Indoor Unit PCB AbnormalityRemote Controller DisplayA1Method of Malfunction DetectionEvaluation

Troubleshooting SiENBE12-522A208 Service Diagnosis5.4 Freeze-up Protection Control or High Pressure ControlRemote Controller DisplayA5Method of Malfun

SiENBE12-522A List of FunctionsList of Functions 11Category Functions2MXS52D(2)VMB3MXS52D(2)VMB4MXS68D(2)VMB4MXS80DVMBCategory Functions2MXS52D(2)VMB3

SiENBE12-522A TroubleshootingService Diagnosis 209TroubleshootingCheck No.06Refer to P.247Note: If the outside temperature is below –10°C in the cooli

Troubleshooting SiENBE12-522A210 Service Diagnosis5.5 Fan Motor or Related Abnormality5.5.1 AC MotorRemote Controller DisplayA6Method of Malfunction D

SiENBE12-522A TroubleshootingService Diagnosis 2115.5.2 DC MotorRemote Controller DisplayA6Method of Malfunction DetectionThe rotation speed detected

Troubleshooting SiENBE12-522A212 Service DiagnosisTroubleshootingCheck No.01Refer to P.244Check No.02Refer to P.244Replace fan motor.Replace indoor un

SiENBE12-522A TroubleshootingService Diagnosis 2135.6 Thermistor or Related Abnormality (Indoor Unit)Remote Controller DisplayC4, C9 Method of Malfunc

Troubleshooting SiENBE12-522A214 Service Diagnosis5.7 Shutter Drive Motor / Shutter Limit Switch AbnormalityRemote Controller DisplayC7Method of Malfu

SiENBE12-522A TroubleshootingService Diagnosis 2155.8 Signal Transmission Error (between Indoor and Outdoor Units)Remote Controller DisplayU4Method of

Troubleshooting SiENBE12-522A216 Service Diagnosis5.9 Unspecified Voltage (between Indoor and Outdoor Units)Remote Controller Display UAMethod of Malf

SiENBE12-522A TroubleshootingService Diagnosis 2175.10 Freeze-up Protection ControlRemote Controller DisplayA5Outdoor Unit LED DisplayA 5 1 4 2 1

Troubleshooting SiENBE12-522A218 Service DiagnosisTroubleshootingCheck No.04Refer to P.245Check No.06Refer to P.247Check the wiring and piping.Check N

List of Functions SiENBE12-522A12 List of FunctionsCategory FunctionsATXS20-35DVMBATXS20-35CVMB(9)Category FunctionsATXS20-35DVMBATXS20-35CVMB(9)Basic

SiENBE12-522A TroubleshootingService Diagnosis 2195.11 OL Activation (Compressor Overload)Remote Controller DisplayE5Outdoor Unit LED DisplayA 5 1 4

Troubleshooting SiENBE12-522A220 Service Diagnosis5.12 Compressor LockRemote Controller DisplayE6Outdoor Unit LED DisplayA 5 1 1 2 4 3 4 4 1Me

SiENBE12-522A TroubleshootingService Diagnosis 2215.13 DC Fan LockRemote Controller DisplayE7Outdoor Unit LED DisplayA 5 1 4 2 4 3 4 4 4Method

Troubleshooting SiENBE12-522A222 Service Diagnosis5.14 Input Over Current DetectionRemote Controller DisplayE8Outdoor Unit LED DisplayA 5 1 1 2 4

SiENBE12-522A TroubleshootingService Diagnosis 223TroubleshootingCheck No.07Refer to P.248Check No.08Refer to P.249Check No.14Refer to P.252Replace th

Troubleshooting SiENBE12-522A224 Service Diagnosis5.15 Four Way Valve AbnormalityRemote Controller DisplayEAOutdoor Unit LED DisplayA 5 1 4 2 1

SiENBE12-522A TroubleshootingService Diagnosis 225TroubleshootingCheck No.05Refer to P.246Check No.06Refer to P.247Check No.11Refer to P.250Correct.Re

Troubleshooting SiENBE12-522A226 Service Diagnosis5.16 Discharge Pipe Temperature ControlRemote Controller DisplayF3Outdoor Unit LED DisplayA 5 1 4

SiENBE12-522A TroubleshootingService Diagnosis 2275.17 High Pressure Control in CoolingRemote Controller DisplayF6Outdoor Unit LED DisplayA 5 1 4

Troubleshooting SiENBE12-522A228 Service DiagnosisTroubleshootingCheck No.04Refer to P.245Check No.06Refer to P.247Check No.07Refer to P.248Check No.0

SiENBE12-522A List of FunctionsList of Functions 13Category FunctionsATXS50DVMBCategory FunctionsATXS50DVMBBasic FunctionInverter (with Inverter Power

SiENBE12-522A TroubleshootingService Diagnosis 2295.18 Position Sensor AbnormalityRemote Controller DisplayH6Outdoor Unit LED DisplayA 5 1 4 2 4

Troubleshooting SiENBE12-522A230 Service Diagnosis5.19 CT or Related AbnormalityRemote Controller DisplayH8Outdoor Unit LED DisplayA 5 1 4 2 4 3

SiENBE12-522A TroubleshootingService Diagnosis 231TroubleshootingCheck No.12Refer to P.251Turn off the power and turn it on again.Check No. 12Check th

Troubleshooting SiENBE12-522A232 Service Diagnosis5.20 Thermistor or Related Abnormality (Outdoor Unit)Remote Controller DisplayP4, J3, J6, J8, J9, H9

SiENBE12-522A TroubleshootingService Diagnosis 233TroubleshootingCheck No.06Refer to P.247P4 : Radiation fin thermistorJ3 : Discharge pipe thermistorJ

Troubleshooting SiENBE12-522A234 Service Diagnosis5.21 Electrical Box Temperature RiseRemote Controller DisplayL3Outdoor Unit LED DisplayA 5 1 4 2

SiENBE12-522A TroubleshootingService Diagnosis 235TroubleshootingCheck No.06Refer to P.247Check No.07Refer to P.248Check No.09Refer to P.249Turn off t

Troubleshooting SiENBE12-522A236 Service Diagnosis5.22 Radiation Fin Temperature RiseRemote Controller DisplayL4Outdoor Unit LED DisplayA 5 1 1 2

SiENBE12-522A TroubleshootingService Diagnosis 237TroubleshootingCheck No.06Refer to P.247Check No.07Refer to P.248Check No.09Refer to P.249Turn off t

Troubleshooting SiENBE12-522A238 Service Diagnosis5.23 Output Over Current DetectionRemote Controller DisplayL5Outdoor Unit LED DisplayA 5 1 1 2 1

List of Functions SiENBE12-522A14 List of FunctionsCategory FunctionsATXS50CVMB2AMX52D(2)VMB3AMX52C(2)VMBCategory FunctionsATXS50CVMB2AMX52D(2)VMB3AMX

SiENBE12-522A TroubleshootingService Diagnosis 239TroubleshootingCheck No.07Refer to P.248Check No.08Refer to P.249Check No.13Refer to P.251Fully open

Troubleshooting SiENBE12-522A240 Service Diagnosis5.24 Insufficient GasRemote Controller DisplayU0Outdoor Unit LED DisplayA 5 1 1 2 1 3 4 4 4M

SiENBE12-522A TroubleshootingService Diagnosis 241TroubleshootingCheck No.04Refer to P.245Check No.06Refer to P.247Reconnect in position.Open the stop

Troubleshooting SiENBE12-522A242 Service Diagnosis5.25 Low-voltage DetectionRemote Controller DisplayU2Outdoor Unit LED DisplayA 5 1 4 2 1 3 1

SiENBE12-522A TroubleshootingService Diagnosis 2435.26 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)Remo

Check SiENBE12-522A244 Service Diagnosis6. Check6.1 How to Check6.1.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Che

SiENBE12-522A CheckService Diagnosis 2456.1.3 Electronic Expansion Valve CheckCheck No.04 Conduct the followings to check the electronic expansion val

Check SiENBE12-522A246 Service Diagnosis6.1.4 Four Way Valve Performance CheckCheck No.05Turn off the power and turn it on again.Start the heating-mod

SiENBE12-522A CheckService Diagnosis 2476.1.5 Thermistor Resistance CheckCheck No.06 Remove the connectors of the thermistors on the PCB, and measure

Check SiENBE12-522A248 Service Diagnosis6.1.6 Installation Condition CheckCheck No.07Installation condition checkNormalChange the position of the air

SiENBE12-522A List of FunctionsList of Functions 15Category FunctionsFTXS20-35DAVMW(L)FTXS20-35D3VMW(L)FTXS20-35CAVMBCategory FunctionsFTXS20-35DAVMW(

SiENBE12-522A CheckService Diagnosis 2496.1.7 Discharge Pressure CheckCheck No.086.1.8 Outdoor Unit Fan System Check (With DC Motor)Check No.09Dischar

Check SiENBE12-522A250 Service Diagnosis6.1.9 Power Supply Waveforms CheckCheck No.10 Measure the power supply waveform between pins 1 and 3 on the te

SiENBE12-522A CheckService Diagnosis 2516.1.11 Capacitor Voltage CheckCheck No.12 Before this checking, be sure to check the main circuit for short-ci

Check SiENBE12-522A252 Service Diagnosis6.1.13 Main Circuit Electrolytic Capacitor CheckCheck No.14 " Checking the main circuit electrolytic capa

SiENBE12-522A CheckService Diagnosis 2536.1.15 Hall IC CheckCheck No.16 1. Check the connector connection.2. With the power ON, operation OFF, and the

Check SiENBE12-522A254 Service Diagnosis

SiENBE12-522ARemoval Procedure 255Part 7Removal Procedure1. Outdoor Unit (80 / 90 Class) ...

Outdoor Unit (80 / 90 Class) SiENBE12-522A256 Removal Procedure1. Outdoor Unit (80 / 90 Class)1.1 Removal of Outer PanelsProcedure Warning Be sure to

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2573Unscrew 3 screws of the right panel, slide it downwards and release the tabs to remov

Outdoor Unit (80 / 90 Class) SiENBE12-522A258 Removal Procedure6Unscrew 3 screws of the front panel to remove.7Remove 4 screws of the discharge outlet

List of Functions SiENBE12-522A16 List of FunctionsCategory FunctionsFTXS71BAVMBFDXS25·35CAVMBCategory FunctionsFTXS71BAVMBFDXS25·35CAVMBBasic Functio

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2591.2 Removal of Propeller FansProcedure Warning Be sure to wait 10 minutes or more after

Outdoor Unit (80 / 90 Class) SiENBE12-522A260 Removal Procedure1.3 Removal of Electrical BoxProcedure Warning Be sure to wait 10 minutes or more after

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2613Remove the earth wire.4Remove 1 screw of the terminal board.5Release the tab on the to

Outdoor Unit (80 / 90 Class) SiENBE12-522A262 Removal Procedure2. Remove each wire harness1Disconnect 4 connectors of the electronic expansion valve l

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2634Remove the connector S92 for gas pipe thermistor.5Remove the connector S90 for thermis

Outdoor Unit (80 / 90 Class) SiENBE12-522A264 Removal Procedure8Remove the relay connector for compressor.9Remove the electrical box cover.10Disconnec

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 26512Take off the thermistor presser spring, and remove the thermistor." Place the th

Outdoor Unit (80 / 90 Class) SiENBE12-522A266 Removal Procedure3Remove the outdoor air thermistor lead wire from the groove.4Remove each wire harness,

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2671.4 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more after turning of

Outdoor Unit (80 / 90 Class) SiENBE12-522A268 Removal Procedure4Lift the PCB at the terminal board side.5Disconnect each wire harness connector linked

SiENBE12-522A List of FunctionsList of Functions 17Category FunctionsFLXS25-60BAVMBFVXS25-50BAVMB4MXS68D3VMB4MXS80DAVMBCategory FunctionsFLXS25-60BAVM

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2696The figure shows the controller PCB.S20: Electronic expansion valve coil A portS21: El

Outdoor Unit (80 / 90 Class) SiENBE12-522A270 Removal Procedure1.5 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or more after turn

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2714Remove 4 screws of the fan motor." When reassembling, fix the lead wire to avoid

Outdoor Unit (80 / 90 Class) SiENBE12-522A272 Removal Procedure1.6 Removal of Electronic Expansion Valve and ThermistorProcedure Warning Be sure to wa

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2731.7 Removal of Sound Blanket and ReactorProcedure Warning Be sure to wait 10 minutes or

Outdoor Unit (80 / 90 Class) SiENBE12-522A274 Removal Procedure4Remove the sound blanket (top)." Carefully remove the sound blanket, which is eas

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 2751.8 Removal of ShuntProcedure Warning Be sure to wait 10 minutes or more after turning

Outdoor Unit (80 / 90 Class) SiENBE12-522A276 Removal Procedure1.9 Removal of Solenoid Valve and Four Way ValveProcedure Warning Be sure to wait 10 mi

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 277" Before taking this procedure, make sure there is no refrigerant gas left in the

Outdoor Unit (80 / 90 Class) SiENBE12-522A278 Removal Procedure1.10 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after tu

List of Functions SiENBE12-522A18 List of FunctionsCategory FunctionsATXS20-35DAVMBCategory FunctionsATXS20-35DAVMBBasic FunctionInverter (with Invert

SiENBE12-522A Outdoor Unit (80 / 90 Class)Removal Procedure 279" Make sure there is no refrigerant gas left inside the refrigerant pipes before s

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A280 Removal Procedure2. Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)2.1 Removal of Outer Panel

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2812.2 Removal of Electrical BOXProcedure Warning Be sure to wait 10 minute

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A282 Removal Procedure3Pull out the terminal board to open." Glass tube fuse and varistor

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2834Disconnect the compressor relay connector.5Remove the reactor lead wire

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A284 Removal Procedure2Remove 1 screw of the electrical box.3Remove the drip-proof cover.4Disc

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2852.3 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more a

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A286 Removal Procedure5Lift up the control PCB.6Disconnect each wire harness connector linked

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2877The figure shows the control PCB." Glass tube fuse 3A2. Removing t

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A288 Removal Procedure2.4 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or

SiENBE12-522Aii Table of Contents!Heat PumpIndoor UnitFTXS20D(2)VMW(L)(9) ATXS20DVMB FDXS25CVMB FLXS25BVMBFTXS25D(2)VMW(L)(9) ATXS25DVMB FDXS35CVMB FL

SiENBE12-522ASpecifications 19Part 2Specifications1. Specifications ...

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2892.5 Removal of Sound BlanketProcedure Warning Be sure to wait 10 minutes

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A290 Removal Procedure2.6 Removal of Four Way Valve Coil, Solenoid Valve Coil, Electronic Expa

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2915Take off the putty, and remove each thermistor." Place the thermis

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A292 Removal Procedure2.7 Removal of Four Way Valve, Solenoid Valve and ShuntProcedure Warning

SiENBE12-522A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2932.8 Removal of Solenoid Valve and ShuntProcedure Warning Be sure to wait

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) SiENBE12-522A294 Removal Procedure2.9 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or

SiENBE12-522AOthers 295Part 8Others1. Others ...2961.1 T

Others SiENBE12-522A296 Others1. Others1.1 Test Run from the Remote ControllerFor Heat pump In cooling mode, select the lowest programmable temperatur

SiENBE12-522A OthersOthers 2971.2 Jumper Settings1.2.1 When Two Units are Installed in One RoomWhen two indoor units are installed in one room, the tw

Others SiENBE12-522A298 Others1.2.3 Adjusting the Angle of the Intelligent Eye SensorFTK(X)S20-35C, ATXS20-35D, ATXS20-35C" Once installation of

Specifications SiENBE12-522A20 Specifications1. Specifications1.1 Indoor Units - Cooling OnlyWall Mounted Type50Hz 230VModel FTKS20DVMW(9) FTKS20DVMLR

SiENBE12-522AAppendix 299Part 9Appendix1. Piping Diagrams...3001.1 Indo

Piping Diagrams SiENBE12-522A300 Appendix1. Piping Diagrams1.1 Indoor Units1.1.1 Wall Mounted TypeFTKS20/25/35D(2)VMW(L)(9)FTKS20/25/35DAVMW(L)FTKS20/

SiENBE12-522A Piping DiagramsAppendix 301FTKS20/25/35CVMB(9)(8)FTKS20/25/35CAVMBFTXS20/25/35CVMB(9)(8)ATXS20/25/35DVMB, ATXS20/25/35CVMB(9)FTXS20/25/3

Piping Diagrams SiENBE12-522A302 AppendixFTXS71BVMB, FTXS71BAVMB1.1.2 Duct Connected TypeFDK(X)S25/35CVMB, CDK(X)S50/60CVMB, FDK(X)S25/35CAVMB(15.9CuT

SiENBE12-522A Piping DiagramsAppendix 3031.1.3 Floor / Ceiling Suspended Dual TypeFLKS25/35BVMB, FLKS25/35BAVMB FLKS50/60BVMB, FLKS50/60BAVMBFLXS25/3

Piping Diagrams SiENBE12-522A304 Appendix1.1.4 Floor Standing TypeFVXS25/35BVMB, FVXS25/35BAVMB FVKS25/35BVMB, FVKS25/35BAVMBFVXS50BVMB, FVXS50BAVMB F

SiENBE12-522A Piping DiagramsAppendix 3051.2 Outdoor Units1.2.1 Cooling Only3MKS50DVMB, 3MKS50D2VMB4MKS58DVMB, 4MKS58D2VMBREFRIGERANT FLOW9.5CuTHEAT E

Piping Diagrams SiENBE12-522A306 Appendix4MKS75DVMB, 4MKS75D2VMB, 4MKS75D3VMB4MKS90DVMB, 4MKS90DAVMBREFRIGERANT FLOW9.5CuTHEAT EXCHANGERTHERMISTOR(DE)

SiENBE12-522A Piping DiagramsAppendix 3071.2.2 Heat Pump2MXS52DVMB, 2MXS52D2VMB, 2AMX52DVMB, 2AMX52D2VMB3MXS52DVMB, 3MXS52D2VMB, 3AMX52CVMB, 3AMX52C2V

Piping Diagrams SiENBE12-522A308 Appendix4MXS68DVMB, 4MXS68D2VMB, 4MXS68D3VMB4MXS80DVMB, 4MXS80DAVMBREFRIGERANT FLOWHEADERHEAT EXCHANGERTHERMISTOR(DE)

SiENBE12-522A SpecificationsSpecifications 2150Hz 230VModel FTKS25DVMW(9) FTKS25DVMLRated Capacity 2.5kW Class 2.5kW ClassFront Panel Color White Silv

SiENBE12-522A Wiring DiagramsAppendix 3092. Wiring Diagrams2.1 Indoor Units2.1.1 Wall Mounted TypeFTK(X)S20/25/35D(2)VMW(L)(9), CTK(X)S50D(2)VMW(L), F

Wiring Diagrams SiENBE12-522A310 AppendixFTK(X)S50BVMB, ATXS50DVMB, ATXS50CVMBFTK(X)S60/71BVMB, FTK(X)S71BAVMB3D038065GCONTROLLERWIRELESSREMOTEPCB4PCB

SiENBE12-522A Wiring DiagramsAppendix 3112.1.2 Duct Connected TypeFDK(X)S25/35CVMB, CDK(X)S50/60CVMB, FDK(X)S25/35CAVMB2.1.3 Floor / Ceiling Suspended

Wiring Diagrams SiENBE12-522A312 Appendix2.1.4 Floor Standing TypeFVK(X)S25/35/50BVMB, FVK(X)S25/35/50BAVMBCONTROLLERWIRELESSREMOTEindoorH1PS1WS2W(4)S

SiENBE12-522A Wiring DiagramsAppendix 3132.2 Outdoor Units2.2.1 Cooling only3MKS50DVMB, 3MKS50D2VMB4MKS58DVMB, 4MKS75DVMB, 4MKS90DVMB, 4MKS58D2VMB, 4M

Wiring Diagrams SiENBE12-522A314 Appendix2.2.2 Heat Pump2MXS52DVMB, 2AMX52DVMB, 2MXS52D2VMB, 2AMX52D2VMB3MXS52DVMB, 3AMX52CVMB, 3MXS52D2VMB, 3AMX52C2V

SiENBE12-522A Wiring DiagramsAppendix 3154MXS68DVMB, 4MXS80DVMB, 4MXS68D2VMB, 4MXS68D3VMB, 4MXS80DAVMBROOM AROOM BROOM CROOM DTO INDOOR UNIT3333222211

Wiring Diagrams SiENBE12-522A316 Appendix

SiENBE12-522AIndex iIndexNumerics3 minutes stand-by...105Aa1 ...

SiENBE12-522Aii Indexu0...240u2...

Specifications SiENBE12-522A22 Specifications50Hz 230VModel FTKS35DVMW(9) FTKS35DVMLRated Capacity 3.5kW Class 3.5kW ClassFront Panel Color White Silv

SiENBE12-522AIndex iiioverload ...114overload relay...

SiENBE12-522Aiv Indextroubleshooting with the operation lamp ...198turning speed pulse input on the outdoor unit pcb check...

SiENBE12-522ADrawings & Flow Charts vDrawings & Flow ChartsAanti-icing function in other rooms ...243arc433a ...

SiENBE12-522Avi Drawings & Flow Charts4mks75d3vmb ...3064mks75dvmb ...

SiENBE12-522ADrawings & Flow Charts viiftk(x)s20/25/35d(2)vmw(l)(9)...309ftk(x)s20/25/35d3vmw(l) ...

ÉSiENBE12-522ATËÍISO14001 assures an effective environmentalmanagement system in order to help protecthuman health and the environment from thepotenti

SiENBE12-522A SpecificationsSpecifications 2350Hz 230VModel CTKS50D(2)VMW CTKS50D(2)VMLRated Capacity 5.0kW Class 5.0kW ClassFront Panel Color White S

Specifications SiENBE12-522A24 Specifications50Hz 230VModel FTKS35CVMB(9)(8) FTKS50BVMBRated Capacity 3.5kW Class 5.0kW ClassFront Panel Color White W

SiENBE12-522A SpecificationsSpecifications 2550Hz 230VModel FTKS20DAVMW FTKS20DAVMLRated Capacity 2.0kW Class 2.0kW ClassFront Panel Color White Silve

Specifications SiENBE12-522A26 Specifications50Hz 230VModel FTKS25DAVMW FTKS25DAVMLRated Capacity 2.5kW Class 2.5kW ClassFront Panel Color White Silve

SiENBE12-522A SpecificationsSpecifications 2750Hz 230VModel FTKS35DAVMW FTKS35DAVMLRated Capacity 3.5kW Class 3.5kW ClassFront Panel Color White Silve

Specifications SiENBE12-522A28 Specifications50Hz 230VModel FTKS20CAVMB FTKS25CAVMBRated Capacity 2.0kW Class 2.5kW ClassFront Panel Color White White

SiENBE12-522ATable of Contents iii1.3 Indoor Units - Heat Pump...401.4 Outdoor Uni

SiENBE12-522A SpecificationsSpecifications 29Duct Connected Type50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the e

Specifications SiENBE12-522A30 Specifications50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the external static pres

SiENBE12-522A SpecificationsSpecifications 31Floor / Ceiling Suspended Dual Type50Hz 230VModel FLKS25BVMB FLKS35BVMBRated Capacity 2.5kW Class 3.5kW C

Specifications SiENBE12-522A32 SpecificationsPower Factor % 94.6 94.2Temperature Control Microcomputer Control Microcomputer ControlDimensions (H×W×D)

SiENBE12-522A SpecificationsSpecifications 33Floor Standing Type50Hz 230VModel FVKS25BVMB FVKS35BVMBRated Capacity 2.5kW Class 3.5kW ClassFront Panel

Specifications SiENBE12-522A34 SpecificationsPower Consumption (Rated) W 32 32Power Factor % 99.4 99.4Temperature Control Microcomputer Control Microc

SiENBE12-522A SpecificationsSpecifications 351.2 Outdoor Units - Cooling Only50Hz 230VNote:1. The data are based on the conditions shown in the table

Specifications SiENBE12-522A36 Specifications50Hz 230VNote:1. The data are based on the conditions shown in the table below.Model 4MKS75DVMB 4MKS90DVM

SiENBE12-522A SpecificationsSpecifications 3750Hz 230VNote:1. The data are based on the conditions shown in the table below.Model 3MKS50D2VMB 4MKS58D2

Specifications SiENBE12-522A38 Specifications50Hz 230VNote:1. The data are based on the conditions shown in the table below.Model 4MKS75D2VMBCooling C

SiENBE12-522Aiv Table of ContentsPart 5System Configuration1211. System Configuration...

SiENBE12-522A SpecificationsSpecifications 3950Hz 230VNote:1. The data are based on the conditions shown in the table below.Model 4MKS75D3VMB 4MKS90DA

Specifications SiENBE12-522A40 Specifications1.3 Indoor Units - Heat PumpWall Mounted Type50Hz 230VModelFTXS20DVMW(9) FTXS20DVMLCooling Heating Coolin

SiENBE12-522A SpecificationsSpecifications 4150Hz 230VModelFTXS25DVMW(9) FTXS25DVMLCooling Heating Cooling HeatingRated Capacity 2.5kW Class 2.5kW Cla

Specifications SiENBE12-522A42 Specifications50Hz 230VModelFTXS35DVMW(9) FTXS35DVMLCooling Heating Cooling HeatingRated Capacity 3.5kW Class 3.5kW Cla

SiENBE12-522A SpecificationsSpecifications 4350Hz 230VModelCTXS50D(2)VMW CTXS50D(2)VMLCooling Heating Cooling HeatingRated Capacity 5.0kW Class 5.0kW

Specifications SiENBE12-522A44 Specifications50Hz 230VModelFTXS35CVMB(9)(8) FTXS50BVMBCooling Heating Cooling HeatingRated Capacity 3.5kW Class 5.0kW

SiENBE12-522A SpecificationsSpecifications 4550Hz 230VModelATXS20DVMB ATXS25DVMBCooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.5kW ClassF

Specifications SiENBE12-522A46 Specifications50Hz 230VModelATXS20CVMB(9) ATXS25CVMB(9)Cooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.5kW

SiENBE12-522A SpecificationsSpecifications 4750Hz 230VModelFTXS20DAVMW FTXS20DAVMLCooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.0kW Clas

Specifications SiENBE12-522A48 Specifications50Hz 230VModelFTXS25DAVMW FTXS25DAVMLCooling Heating Cooling HeatingRated Capacity 2.5kW Class 2.5kW Clas

SiENBE12-522ATable of Contents v5.20 Thermistor or Related Abnormality (Outdoor Unit)...2325.21 Electrical Box Temperature

SiENBE12-522A SpecificationsSpecifications 4950Hz 230VModelFTXS35DAVMW FTXS35DAVMLCooling Heating Cooling HeatingRated Capacity 3.5kW Class 3.5kW Clas

Specifications SiENBE12-522A50 Specifications50Hz 230VModelFTXS20CAVMB FTXS25CAVMBCooling Heating Cooling HeatingRated Capacity 2.5kW Class 2.5kW Clas

SiENBE12-522A SpecificationsSpecifications 5150Hz 230VModelATXS20DAVMB ATXS25DAVMBCooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.5kW Clas

Specifications SiENBE12-522A52 SpecificationsDuct Connected Type50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the e

SiENBE12-522A SpecificationsSpecifications 5350Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the external static pres

Specifications SiENBE12-522A54 SpecificationsFloor / Ceiling Suspended Dual Type50Hz 230VModelFLXS25BVMB FLXS35BVMBCooling Heating Cooling HeatingRate

SiENBE12-522A SpecificationsSpecifications 5550Hz 230VModelFLXS25BAVMB FLXS35BAVMBCooling Heating Cooling HeatingRated Capacity 2.5kW Class 3.5kW Clas

Specifications SiENBE12-522A56 SpecificationsFloor Standing Type50Hz 230VModelFVXS25BVMB FVXS35BVMBCooling Heating Cooling HeatingRated Capacity 2.5kW

SiENBE12-522A SpecificationsSpecifications 57Air Filter Removable-Washable-Mildew Proof Removable-Washable-Mildew ProofRunning Current (Rated) A 0.14

Specifications SiENBE12-522A58 Specifications1.4 Outdoor Units - Heat Pump50Hz 230VNote:1. The data are based on the conditions shown in the table bel

SiENBE12-522Avi Table of Contents2. Wiring Diagrams...3092.1 Indoor Uni

SiENBE12-522A SpecificationsSpecifications 5950Hz 230VNote:1. The data are based on the conditions shown in the table below.Model4MXS68DVMB 4MXS80DVMB

Specifications SiENBE12-522A60 Specifications50Hz 230VNote:1. The data are based on the conditions shown in the table below.Model2AMX52DVMB 3AMX52CVMB

SiENBE12-522A SpecificationsSpecifications 6150Hz 230VNote:1. The data are based on the conditions shown in the table below.Model2MXS52D2VMB 3MXS52D2V

Specifications SiENBE12-522A62 Specifications50Hz 230VNote:1. The data are based on the conditions shown in the table below.Model4MXS68D2VMB 2AMX52D2V

SiENBE12-522A SpecificationsSpecifications 6350Hz 230VNote:1. The data are based on the conditions shown in the table below.Model3AMX52C2VMBCooling He

Specifications SiENBE12-522A64 Specifications50Hz 230VNote:1. The data are based on the conditions shown in the table below.Model4MXS68D3VMB 4MXS80DAV

SiENBE12-522APrinted Circuit Board Connector Wiring Diagram 65Part 3Printed Circuit BoardConnector Wiring Diagram1. Printed Circuit Board Connector Wi

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A66 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 67PCB Detail PCB(1): Control PCBPCB(4): INT

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A68 Printed Circuit Board Connector Wiring Diagram1.1.2 FTK(X)S20~35C, ATXS20~35D, ATXS20~3

SiENBE12-522A Introductionvii1. Introduction1.1 Safety CautionsCautions and Warnings" Be sure to read the following safety cautions before conduc

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 69PCBJP21JBJAJC5VGND12V(R2413)SW7PCB(1) Con

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A70 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCBPCB(2): Sig

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 711.1.3 FTK(X)S50~71B, ATXS50D, ATXS50CConn

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A72 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCB (indoor un

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 731.2 Duct Connected TypeConnectorsNote: Ot

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A74 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB (2): Display PCBC1C3C2WLU

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 751.3 Floor / Ceiling Suspended Dual TypeCo

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A76 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB (2): Power Supply PCBPCB (

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 771.4 Floor Standing TypeConnectorsNote: Ot

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A78 Printed Circuit Board Connector Wiring Diagram

Introduction SiENBE12-522Aviii1.1.2 Cautions Regarding Products after RepairCautionDo not repair the electrical components with wet hands.Working on t

SiENBE12-522A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 79PCB Detail PCB (2): Control PCBPCB (3): D

Printed Circuit Board Connector Wiring Diagram SiENBE12-522A80 Printed Circuit Board Connector Wiring Diagram1.5 Outdoor UnitsConnectorsNote: Other De

SiENBE12-522AFunction and Control 81Part 4Function and Control1. Main Functions...

Main Functions SiENBE12-522A82 Function and Control1. Main FunctionsNote: See the list of functions for the functions applicable to different models.1

SiENBE12-522A Main FunctionsFunction and Control 83Inverter Features The inverter provides the following features:" The regulating capacity can b

Main Functions SiENBE12-522A84 Function and Control1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-SwingPower-airflow Dual FlapsThe large fl

SiENBE12-522A Main FunctionsFunction and Control 851.3 Fan Speed Control for Indoor UnitsControl Mode The airflow rate can be automatically controlled

Main Functions SiENBE12-522A86 Function and Control1.4 Programme Dry FunctionProgramme dry function removes humidity while preventing the room tempera

SiENBE12-522A Main FunctionsFunction and Control 871.5 Automatic OperationAutomatic Cooling / Heating Function (Heat Pump Only)When the AUTO mode is s

Main Functions SiENBE12-522A88 Function and Control1.6 Thermostat ControlThermostat control is based on the difference between the room temperature an