Daikin FTXG25EV1BS Service Manual

SiEBE12-625D-Series / E-SeriesSer viceManual[Applied Models]zInverter Multi : Cooling OnlyzInverter Multi : Heat Pump

Introduction SiEBE12-625ix1.1.4 Using IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is

Control Specification SiEBE12-62590 Function and Control3.13 Malfunctions3.13.1 Sensor Malfunction DetectionSensor malfunction may occur either in the

SiEBE12-625 Control SpecificationFunction and Control 91Detail Judgment by Input CurrentWhen an output frequency is exceeds 55 Hz and the input curren

Control Specification SiEBE12-62592 Function and Control3.15 Wiring-Error CheckOutline The convenient Wiring Error Check function is designed for the

SiEBE12-625 Control SpecificationFunction and Control 93Checking the current setting data on the microcomputer memoryThose data can be checked by look

Control Specification SiEBE12-62594 Function and Control3.16 Additional Function3.16.1 Connection Pipe Condensation Preventing FunctionThis control is

SiEBE12-625 Control SpecificationFunction and Control 953.16.5 Cooling / Heating Mode LockUse the S15 connector to set the unit to only cool or heat.S

Control Specification SiEBE12-62596 Function and Control

SiEBE12-625System Configuration 97Part 5System Configuration1. System Configuration...

System Configuration SiEBE12-62598 List of Functions1. System Configuration1.1 Operation InstructionsAfter the installation and test operation of the

SiEBE12-625 InstructionList of Functions 992.Instruction2.1 Manual Contents and Reference PageH: Illustrations are for wall mounted type FTXS20-50D as

SiBE12-625List of Functions 1Part 1List of Functions1. List of Functions...

Instruction SiEBE12-625100 List of Functions2.2 Safety Precautions• Keep this manual where the operator can easily find them.• Read this manual attent

SiEBE12-625 InstructionList of Functions 101Installation siteTo install the air conditioner in the following types of environments, consult the deale

Instruction SiEBE12-625102 List of Functions2.3Names of PartsFTK(X)S 20/25/35/50 DIndoor UnitON/OFF16 141315121 3 45791011862

SiEBE12-625 InstructionList of Functions 103Outdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fi

Instruction SiEBE12-625104 List of FunctionsRemote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

SiEBE12-625 InstructionList of Functions 105FTK(X)S 20/25/35 CIndoor UnitOFFON

Instruction SiEBE12-625106 List of FunctionsOudoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fil

SiEBE12-625 InstructionList of Functions 107Remote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

Instruction SiEBE12-625108 List of FunctionsCDK(X)S 50/60/71 EIndoor UnitMain unit control panel71411121343129108651615

SiEBE12-625 InstructionList of Functions 109Outdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fi

List of Functions SiEBE12-6252 List of Functions1. List of Functions1.1 Cooling Only ModelsCategory FunctionsFTKS20-35D3VMW(L)FTKS50D2V1W(L)FTKS20-35C

Instruction SiEBE12-625110 List of FunctionsRemote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

SiEBE12-625 InstructionList of Functions 111FLK(X)S 71 BIndoor UnitThis illustration shows a 50-class unitMain unit control panel7141112134315129108

Instruction SiEBE12-625112 List of FunctionsOudoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fil

SiEBE12-625 InstructionList of Functions 113Remote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

Instruction SiEBE12-625114 List of FunctionsFTXG 25/35 E, CTXG 50 EIndoor Unit1514181213171 3 4 62111657 8 910(With the panel closed)

SiEBE12-625 InstructionList of Functions 115Outdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fi

Instruction SiEBE12-625116 List of FunctionsRemote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

SiEBE12-625 InstructionList of Functions 117FDK(X)S 25/35/50/60 C, FDK(X)S 25/35 EIndoor Unit36891071452

Instruction SiEBE12-625118 List of FunctionsOutdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Air fi

SiEBE12-625 InstructionList of Functions 119Remote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

SiEBE12-625 List of FunctionsList of Functions 3Category FunctionsFTKS50-71EV1BFTKS71BAVMBCategory FunctionsFTKS50-71EV1BFTKS71BAVMBBasic FunctionInve

Instruction SiEBE12-625120 List of FunctionsFLK(X)S 25/35/50/60 BIndoor UnitThe indoor unit can be installed either to the ceiling or to a wall. The

SiEBE12-625 InstructionList of Functions 121Outdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Louver

Instruction SiEBE12-625122 List of FunctionsRemote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

SiEBE12-625 InstructionList of Functions 123FVK(X)S 25/35/50 BIndoor UnitOpening the front panelHow to open the front panelCAUTIONAir outlet selecti

Instruction SiEBE12-625124 List of FunctionsOutdoor UnitIndoor UnitOutdoor UnitAppearance of the outdoor unit may differ from some models.1. Photoc

SiEBE12-625 InstructionList of Functions 125Remote control1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays the cu

Instruction SiEBE12-625126 List of Functions2.4Preparation before OperationTo set the batteries1. Slide the front cover to take it off.2. Set two dry

SiEBE12-625 InstructionList of Functions 127To operate the remote control• To use the remote control, aim the transmitter at the indoor unit. If ther

Instruction SiEBE12-625128 List of FunctionsìNOTETo set the clock1. Press “CLOCK button”.0:00 is displayed.blinks.2. Press “TIMER setting button” to

SiEBE12-625 InstructionList of Functions 1292.5 AUTO · DRY · COOL · HEAT · FAN OperationThe air conditioner operates with the operation mode of your

List of Functions SiEBE12-6254 List of FunctionsCategory FunctionsFDKS25/35CAVMBFDKS50/60CVMBFDKS25/35EAVMBCategory FunctionsFDKS25/35CAVMBFDKS50/60CV

Instruction SiEBE12-625130 List of FunctionsTo change the air flow rate setting5. Press “FAN setting button”.• Indoor unit quiet operationWhen the ai

SiEBE12-625 InstructionList of Functions 1312.6 Adjusting the Air Flow DirectionFTK(X)E 20/25/35/50 DYou can adjust the air flow direction to increase

Instruction SiEBE12-625132 List of FunctionsTo start COMFORT AIRFLOW operation3. Press “COMFORT AIRFLOW button”.• The flap position will change, prev

SiEBE12-625 InstructionList of Functions 133FTK(X)S 20/25/35 CYou can adjust the air flow direction to increase your comfort.To adjust the horizontal

Instruction SiEBE12-625134 List of FunctionsTo adjust the vertical blades (louvers)Hold the knob and move the louvers.(You will find a knob on the le

SiEBE12-625 InstructionList of Functions 135FLK(X) 25/35/50/60 AYou can adjust the air flow direction to increase your comfort.To adjust the horizont

Instruction SiEBE12-625136 List of FunctionsTo 3-D Airflow1.3 Press the “SWING button ” and the “SWING button ”:The “ ” and “ ” display will light

SiEBE12-625 InstructionList of Functions 137FTXG 25/35 E, CTXG 50 ETo 3-D Airflow1.3 Press the “SWING button ” and the “SWING button ”:The “ ” and

Instruction SiEBE12-625138 List of FunctionsTo start COMFORT AIRFLOW operation5. Press the “COMFORT AIRFLOW button”.• The flap orientation will chang

SiEBE12-625 InstructionList of Functions 139FTXS 25/35/50/60 BYou can adjust the air flow direction to increase your comfort.To adjust the horizontal

SiEBE12-625 List of FunctionsList of Functions 5Category FunctionsFLKS25-60BAVMBFVKS25-50BAVMBCategory FunctionsFLKS25-60BAVMBFVKS25-50BAVMBBasic Func

Instruction SiEBE12-625140 List of FunctionsNotes on flap and louvers angles.To adjust the vertical blades (louvers)• When adjusting the louver, use

SiEBE12-625 InstructionList of Functions 141FTXS 25/35/50/60 BTo adjust the vertical blades (louvers)Hold the knob and move the louver.(You will find

Instruction SiEBE12-625142 List of FunctionsAir flow selection• make air flow selection acoording to what suits you.When setting the air flow selecti

SiEBE12-625 InstructionList of Functions 1432.7POWERFUL OperationNOTEPowerful operation quickly maximizes the cooling (heating) effect in any operatio

Instruction SiEBE12-625144 List of Functions2.8OUTDOOR UNIT SILENT OperationNOTEOUTDOOR UNIT SILENT operation lowers the noise level of the outdoor un

SiEBE12-625 InstructionList of Functions 1452.9ECONO OperationNOTEECONO operation is a function which enables efficient operation by lowering the maxi

Instruction SiEBE12-625146 List of Functions2.10HOME LEAVE OperationBefore using HOME LEAVE operation.HOME LEAVE operation is a function which allows

SiEBE12-625 InstructionList of Functions 147What’s the HOME LEAVE operationIs there a set temperature and air flow rate which is most comfortable, a

Instruction SiEBE12-625148 List of Functions2.11INTELLIGENT EYE OperationFTK(X)E 25/35 B“INTELLIGENT EYE” is the infrared sensor which detects the hum

SiEBE12-625 InstructionList of Functions 149“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTIONEnergy saving operation• Ch

List of Functions SiEBE12-6256 List of FunctionsCategory Functions4MKS75E2(3)V1B4MKS90DAVMBCategory Functions4MKS75E2(3)V1B4MKS90DAVMBBasic FunctionIn

Instruction SiEBE12-625150 List of FunctionsFTK(X)D 50/60/71 B“INTELLIGENT EYE” is the infrared sensor which detects the human movement.To start INTE

SiEBE12-625 InstructionList of Functions 151To adjust the angle of the INTELLIGENT EYE sensor“INTELLIGENT EYE” is useful for Energy SavingNotes on “I

Instruction SiEBE12-625152 List of FunctionsFTK(X)S 50/60/71 E, FTK(X)S 71 B“INTELLIGENT EYE” is the infrared sensor which detects the human movement.

SiEBE12-625 InstructionList of Functions 153“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTIONEnergy saving operation• Ch

Instruction SiEBE12-625154 List of FunctionsFTK(X)S 50/60/71 E, FTK(X)S 71 B“INTELLIGENT EYE” is the infrared sensor which detects the human movement.

SiEBE12-625 InstructionList of Functions 155“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTIONEnergy saving operation• Ch

Instruction SiEBE12-625156 List of Functions2.12TIMER OperationNotesTimer functions are useful for automatically switching the air conditioner on or o

SiEBE12-625 InstructionList of Functions 157ATTENTIONTo use ON TIMER operation• Check that the clock is correct. If not, set the clock to the present

Instruction SiEBE12-625158 List of Functions2.13Note for Multi System<< What is a “Multi System”? >>This system has one outdoor unit conne

SiEBE12-625 InstructionList of Functions 159Priority Room SettingThe Priority Room Setting requires initial programming during installation. Please c

SiEBE12-625 List of FunctionsList of Functions 71.2 Heat Pump ModelsCategory FunctionsFTXG25/35EV1BW(S)CTXG50EV1BW(S)Category FunctionsFTXG25/35EV1BW(

Instruction SiEBE12-625160 List of Functions2.14Care and CleaningFTK(X)E 20/25/35/50 DCAUTION Before cleaning, be sure to stop the operation and turn

SiEBE12-625 InstructionList of Functions 1611. Open the front panel.2. Pull out the air filters.• Push a little upwards the tab at the center of each

Instruction SiEBE12-625162 List of FunctionsNOTECheckBefore a long idle period1. Operate the “fan only” for several hours on a fine day to dry out th

SiEBE12-625 InstructionList of Functions 163FTK(X)D 50/60/71 BCAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF.Indoor

Instruction SiEBE12-625164 List of Functions1. Open the front panel.2. Pull out the air filters.• Push a little upwards the tab at the center of each

SiEBE12-625 InstructionList of Functions 165CheckBefore a long idle period1. Operate the “fan only” for several hours on a fine day to dry out the in

Instruction SiEBE12-625166 List of FunctionsCDK(X)D 25/35/50/60 CCAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF.Indo

SiEBE12-625 InstructionList of Functions 1671. Open the front panel.2. Pull out the air filters.• Push a little upwards the tab at the center of each

Instruction SiEBE12-625168 List of FunctionsCheckBefore a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the in

SiEBE12-625 InstructionList of Functions 169FTK(X)S 71BCAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF.Indoor unit, O

List of Functions SiEBE12-6258 List of FunctionsCategory FunctionsFTXS20-35D3VMW(L)FTXS50D2V1W(L)FTXS20-35CAVMBCategory FunctionsFTXS20-35D3VMW(L)FTXS

Instruction SiEBE12-625170 List of Functions1. Open the front panel.2. Pull out the air filters.• Push a little upwards the tab at the center of each

SiEBE12-625 InstructionList of Functions 171CheckBefore a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the in

Instruction SiEBE12-625172 List of FunctionsFTK(X)S 71BCAUTION • Before cleaning, be sure to stop the operation and turn the breaker OFF.• Always shut

SiEBE12-625 InstructionList of Functions 1731. Open the front panel.• Open the front panel by placing a finger on the panel tab on either side of the

Instruction SiEBE12-625174 List of FunctionsNOTECheckBefore a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out th

SiEBE12-625 InstructionList of Functions 175CAUTION • Only a qualified service person is allowed to perform maintenance.• Before cleaning, be sure to

Instruction SiEBE12-625176 List of FunctionsCleaning the drain pan• Clean the drain pan periodically, or drain piping may be clogged with dust and ma

SiEBE12-625 InstructionList of Functions 177FDK(X)S 50/60 C, FDK(X)S 25/35 ECAUTION • Only a qualified service person is allowed to perform maintenanc

Instruction SiEBE12-625178 List of FunctionsCleaning the drain pan• Clean the drain pan periodically, or drain piping may be clogged with dust and ma

SiEBE12-625 InstructionList of Functions 179FLK(X)S 25/35/50/60 BCAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF.Indo

SiEBE12-625 List of FunctionsList of Functions 9Category FunctionsFTXS50-71EV1BFTXS71BAVMBCategory FunctionsFTXS50-71EV1BFTXS71BAVMBBasic FunctionInve

Instruction SiEBE12-625180 List of Functions1. Open the front panel.2. Pull out the air filters..• Push a little upwards the tab at the center of each

SiEBE12-625 InstructionList of Functions 181CheckBefore a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the in

Instruction SiEBE12-625182 List of FunctionsFVK(X)S 25/35/50 BCAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF.Indoor

SiEBE12-625 InstructionList of Functions 1831. Open the front panel.2. Remove the air filter.• Press the claws on the right and left of the air filter

Instruction SiEBE12-625184 List of FunctionsCheckBefore a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the in

SiEBE12-625 InstructionList of Functions 1852.15TroubleshootingThe following cases are not air conditioner troubles but have some reasons. You may jus

Instruction SiEBE12-625186 List of FunctionsPlease check again before calling a repair person.Check again.Case CheckThe air conditioner does not opera

SiEBE12-625 InstructionList of Functions 187WARNINGIf one of the following symptoms takes place, call the service shop immediately.Disposal requiremen

Instruction SiEBE12-625188 List of FunctionsFAULT DIAGNOSIS BY REMOTE CONTROLIn the ARC433A series, the temperature display sections on the main unit

SiEBE12-625 InstructionList of Functions 189LED ON OUTDOOR UNIT PCB 3MXS, 3MKS, 4MXS, 4MKS seriesNOTESGREEN REDMICROCOMPUTERNORMALMALFUNCTIONDETE

SiEBE12-625Table of Contents iSUPER MULTI NXD-Series / E-SerieszCooling OnlyIndoor UnitFTKS20D3VMW FTKS20CAVMB FDKS25CAVMB FLKS25BAVMBFTKS20D3VML FTKS

List of Functions SiEBE12-62510 List of FunctionsCategory FunctionsFDXS25/35CAVMBFDXS50/60CVMBFDXS25/35EAVMBCategory FunctionsFDXS25/35CAVMBFDXS50/60C

Instruction SiEBE12-625190 List of Functions

SiEBE12-625Service Diagnosis 191Part 6Service Diagnosis1. Caution for Diagnosis...

Caution for Diagnosis SiEBE12-625192 Service Diagnosis1. Caution for Diagnosis1.1 Troubleshooting with Operation LampThe operation lamp flashes when a

SiEBE12-625 Caution for DiagnosisService Diagnosis 193In case ofFLK(X)S 25/35/50/60 B SeriesCaution: Operation stops suddenly. (Operation lamp blinks.

Problem Symptoms and Measures SiEBE12-625194 Service Diagnosis2. Problem Symptoms and MeasuresProblem Symptom Check Item Details of Measure Page No.to

SiEBE12-625 Service Check FunctionService Diagnosis 1953. Service Check FunctionIn the ARC433A series remote controller, the temperature display secti

Service Check Function SiEBE12-625196 Service DiagnosisCheck Method 21. Enter the diagnosis mode.Press the 3 buttons (TEMPs,TEMPt, MODE) simultaneousl

SiEBE12-625 Service Check FunctionService Diagnosis 1975. Press the TEMP button.Press TEMPs or TEMPt and change the digit until you hear the sound of

Code Indication on the Remote Controller SiEBE12-625198 Service Diagnosis4. Code Indication on the Remote Controller4.1 Error Codes and Description of

SiEBE12-625 TroubleshootingService Diagnosis 1995. Troubleshooting5.1 Indoor Units - : Not used for troubleshooting∗ : Varies depending on the cases.I

SiEBE12-625 List of FunctionsList of Functions 11Category FunctionsFLXS25-60BAVMBFVXS25-50BAVMBCategory FunctionsFLXS25-60BAVMBFVXS25-50BAVMBBasic Fun

Troubleshooting SiEBE12-625200 Service Diagnosis5.2 Outdoor Units4: ON, 1: OFF, 5: BlinksGreen : Flashes when in normal conditionRed : OFF in normal c

SiEBE12-625 TroubleshootingService Diagnosis 2015.3 Indoor Unit PCB AbnormalityRemoteControllerDisplayA1Method of Malfunction DetectionEvaluation of z

Troubleshooting SiEBE12-625202 Service Diagnosis5.4 Freeze-up Protection Control or High Pressure ControlRemoteControllerDisplayA5Method of Malfunctio

SiEBE12-625 TroubleshootingService Diagnosis 203TroubleshootingCheck No.06Refer to P.242Note: If the outside temperature is below –10°C in the cooling

Troubleshooting SiEBE12-625204 Service Diagnosis5.5 Fan Motor or Related Abnormality5.5.1 AC MotorRemoteControllerDisplayA6Method of Malfunction Detec

SiEBE12-625 TroubleshootingService Diagnosis 2055.5.2 DC MotorRemoteControllerDisplayA6Method of Malfunction DetectionThe rotation speed detected by t

Troubleshooting SiEBE12-625206 Service DiagnosisTroubleshootingCheck No.01Refer to P.239Check No.02Refer to P.239Replace fan motor.Replace indoor unit

SiEBE12-625 TroubleshootingService Diagnosis 2075.6 Thermistor or Related Abnormality (Indoor Unit)RemoteControllerDisplayC4, C9 Method of Malfunction

Troubleshooting SiEBE12-625208 Service Diagnosis5.7 Shutter Drive Motor / Shutter Limit Switch AbnormalityRemoteControllerDisplayC7Method of Malfuncti

SiEBE12-625 TroubleshootingService Diagnosis 2095.8 Front Panel Open / Close FaultRemoteControllerDisplayC7 Method of Malfunction DetectionMalfunction

List of Functions SiEBE12-62512 List of FunctionsCategory Functions4MXS68E2(3)V1B4MXS80DAVMBCategory Functions4MXS68E2(3)V1B4MXS80DAVMBBasic FunctionI

Troubleshooting SiEBE12-625210 Service Diagnosis5.9 Signal Transmission Error (between Indoor and Outdoor Units)RemoteControllerDisplayU4Method of Mal

SiEBE12-625 TroubleshootingService Diagnosis 2115.10 Unspecified Voltage (between Indoor and Outdoor Units)RemoteControllerDisplayUAMethod of Malfunct

Troubleshooting SiEBE12-625212 Service Diagnosis5.11 Freeze-up Protection ControlRemoteControllerDisplayA5Outdoor Unit LED DisplayA 5 1 4 2 1 3

SiEBE12-625 TroubleshootingService Diagnosis 213TroubleshootingCheck No.04Refer to P.240Check No.06Refer to P.242Check the wiring and piping. Check No

Troubleshooting SiEBE12-625214 Service Diagnosis5.12 OL Activation (Compressor Overload)RemoteControllerDisplayE5Outdoor Unit LED DisplayA 5 1 4 2

SiEBE12-625 TroubleshootingService Diagnosis 2155.13 Compressor LockRemoteControllerDisplayE6Outdoor Unit LED DisplayA 5 1 1 2 4 3 4 4 1Method

Troubleshooting SiEBE12-625216 Service Diagnosis5.14 DC Fan LockRemoteControllerDisplayE7Outdoor Unit LED DisplayA 5 1 4 2 4 3 4 4 4Method of

SiEBE12-625 TroubleshootingService Diagnosis 2175.15 Input Over Current DetectionRemoteControllerDisplayE8Outdoor Unit LED DisplayA 5 1 1 2 4 3

Troubleshooting SiEBE12-625218 Service DiagnosisTroubleshootingCheck No.07Refer to P.243Check No.08Refer to P.244Check No.14Refer to P.247Replace the

SiEBE12-625 TroubleshootingService Diagnosis 2195.16 Four Way Valve AbnormalityRemoteControllerDisplayEAOutdoor Unit LED DisplayA 5 1 4 2 1 3 1

SiEBE12-625Specifications 13Part 2Specifications1. Specifications...

Troubleshooting SiEBE12-625220 Service DiagnosisTroubleshootingCheck No.05Refer to P.241Check No.06Refer to P.242Check No.11Refer to P.245Correct. Rec

SiEBE12-625 TroubleshootingService Diagnosis 2215.17 Discharge Pipe Temperature ControlRemoteControllerDisplayF3Outdoor Unit LED DisplayA 5 1 4 2

Troubleshooting SiEBE12-625222 Service Diagnosis5.18 High Pressure Control in CoolingRemoteControllerDisplayF6Outdoor Unit LED DisplayA 5 1 4 2 1

SiEBE12-625 TroubleshootingService Diagnosis 223TroubleshootingCheck No.04Refer to P.240Check No.06Refer to P.242Check No.07Refer to P.243Check No.09R

Troubleshooting SiEBE12-625224 Service Diagnosis5.19 Position Sensor AbnormalityRemoteControllerDisplayH6Outdoor Unit LED DisplayA 5 1 4 2 4 3 1

SiEBE12-625 TroubleshootingService Diagnosis 2255.20 CT or Related AbnormalityRemoteControllerDisplayH8Outdoor Unit LED DisplayA 5 1 4 2 4 3 1

Troubleshooting SiEBE12-625226 Service DiagnosisTroubleshootingCheck No.12Refer to P.246Turn off the power and turn it on again.Check No. 12Check the

SiEBE12-625 TroubleshootingService Diagnosis 2275.21 Thermistor or Related Abnormality (Outdoor Unit)RemoteControllerDisplayP4, J3, J6, J8, J9, H9Outd

Troubleshooting SiEBE12-625228 Service DiagnosisTroubleshootingCheck No.06Refer to P.242P4 : Radiation fin thermistorJ3 : Discharge pipe thermistorJ6

SiEBE12-625 TroubleshootingService Diagnosis 2295.22 Electrical Box Temperature RiseRemoteControllerDisplayL3Outdoor Unit LED DisplayA 5 1 4 2 4

Specifications SiEBE12-62514 Specifications1. Specifications1.1 Indoor Units - Cooling OnlyWall Mounted Type 50Hz 230VModel FTKS20D3VMW FTKS20D3VMLRat

Troubleshooting SiEBE12-625230 Service DiagnosisTroubleshootingCheck No.06Refer to P.242Check No.07Refer to P.243Check No.09Refer to P.244Turn off the

SiEBE12-625 TroubleshootingService Diagnosis 2315.23 Radiation Fin Temperature RiseRemoteControllerDisplayL4Outdoor Unit LED DisplayA 5 1 1 2 1

Troubleshooting SiEBE12-625232 Service DiagnosisTroubleshootingCheck No.06Refer to P.242Check No.07Refer to P.243Check No.09Refer to P.244Turn off the

SiEBE12-625 TroubleshootingService Diagnosis 2335.24 Output Over Current DetectionRemoteControllerDisplayL5Outdoor Unit LED DisplayA 5 1 1 2 1 3

Troubleshooting SiEBE12-625234 Service DiagnosisTroubleshootingCheck No.07Refer to P.243Check No.08Refer to P.244Check No.13Refer to P.246Fully open t

SiEBE12-625 TroubleshootingService Diagnosis 2355.25 Insufficient GasRemoteControllerDisplayU0Outdoor Unit LED DisplayA 5 1 1 2 1 3 4 4 4Metho

Troubleshooting SiEBE12-625236 Service DiagnosisTroubleshootingCheck No.04Refer to P.240Check No.06Refer to P.242Reconnect in position. Open the stop

SiEBE12-625 TroubleshootingService Diagnosis 2375.26 Low-voltage DetectionRemoteControllerDisplayU2Outdoor Unit LED DisplayA 5 1 4 2 1 3 1 4 4

Troubleshooting SiEBE12-625238 Service Diagnosis5.27 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)Remote

SiEBE12-625 CheckService Diagnosis 2396. Check6.1 How to Check6.1.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Check

SiEBE12-625 SpecificationsSpecifications 1550Hz 230VModel FTKS35D3VMW FTKS35D3VMLRated Capacity 3.5kW Class 3.5kW ClassFront Panel Color White Silver

Check SiEBE12-625240 Service Diagnosis6.1.3 Electronic Expansion Valve CheckCheck No.04 Conduct the followings to check the electronic expansion valve

SiEBE12-625 CheckService Diagnosis 2416.1.4 Four Way Valve Performance CheckCheck No.05Turn off the power and turn it on again.Start the heating-mode

Check SiEBE12-625242 Service Diagnosis6.1.5 Thermistor Resistance CheckCheck No.06 Remove the connectors of the thermistors on the PCB, and measure th

SiEBE12-625 CheckService Diagnosis 2436.1.6 Installation Condition CheckCheck No.07Installation condition check Normal Change the position of the air

Check SiEBE12-625244 Service Diagnosis6.1.7 Discharge Pressure CheckCheck No.086.1.8 Outdoor Unit Fan System Check (With DC Motor)Check No.09Discharge

SiEBE12-625 CheckService Diagnosis 2456.1.9 Power Supply Waveforms CheckCheck No.10 Measure the power supply waveform between pins 1 and 3 on the term

Check SiEBE12-625246 Service Diagnosis6.1.11 Capacitor Voltage CheckCheck No.12 Before this checking, be sure to check the main circuit for short-circ

SiEBE12-625 CheckService Diagnosis 2476.1.13 Main Circuit Electrolytic Capacitor CheckCheck No.14  Checking the main circuit electrolytic capacitorz

Check SiEBE12-625248 Service Diagnosis6.1.15 Hall IC CheckCheck No.16 1. Check the connector connection.2. With the power ON, operation OFF, and the c

SiEBE12-625Removal Procedure 249Part 7Removal Procedure1. Outdoor Unit (80 / 90 Class) ...

Specifications SiEBE12-62516 Specifications50Hz 230VModel FTKS35CAVMB FTKS50D2V1WRated Capacity 3.5kW Class 5.0kW ClassFront Panel Color White WhiteAi

Outdoor Unit (80 / 90 Class) SiEBE12-625250 Removal Procedure1. Outdoor Unit (80 / 90 Class)1.1 Removal of Outer PanelsProcedure Warning Be sure to wa

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2513Unscrew 3 screws of the right panel, slide it downwards and release the tabs to remove.4

Outdoor Unit (80 / 90 Class) SiEBE12-625252 Removal Procedure6Unscrew 3 screws of the front panel to remove.7Remove 4 screws of the discharge outlet g

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2531.2 Removal of Propeller FansProcedure Warning Be sure to wait 10 minutes or more after t

Outdoor Unit (80 / 90 Class) SiEBE12-625254 Removal Procedure1.3 Removal of Electrical BoxProcedure Warning Be sure to wait 10 minutes or more after t

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2553Remove the earth wire.4Remove 1 screw of the terminal board.5Release the tab on the top

Outdoor Unit (80 / 90 Class) SiEBE12-625256 Removal Procedure2. Remove each wire harness1Disconnect 4 connectors of the electronic expansion valve lea

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2574Remove the connector S92 for gas pipe thermistor.5Remove the connector S90 for thermisto

Outdoor Unit (80 / 90 Class) SiEBE12-625258 Removal Procedure8Remove the relay connector for compressor.9Remove the electrical box cover.10Disconnect

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 25912Take off the thermistor presser spring, and remove the thermistor. Place the thermisto

SiEBE12-625 SpecificationsSpecifications 1750Hz 230VModel FTKS60EV1B FTKS71EV1BRated Capacity 6.0kW Class 7.1kW ClassFront Panel Color White WhiteAir

Outdoor Unit (80 / 90 Class) SiEBE12-625260 Removal Procedure3Remove the outdoor air thermistor lead wire from the groove.4Remove each wire harness, a

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2611.4 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more after turning off

Outdoor Unit (80 / 90 Class) SiEBE12-625262 Removal Procedure4Lift the PCB at the terminal board side.5Disconnect each wire harness connector linked t

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2636The figure shows the controller PCB.S20: Electronic expansion valve coil A portS21: Elec

Outdoor Unit (80 / 90 Class) SiEBE12-625264 Removal Procedure1.5 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or more after turnin

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2654Remove 4 screws of the fan motor. When reassembling, fix the lead wire to avoid contact

Outdoor Unit (80 / 90 Class) SiEBE12-625266 Removal Procedure1.6 Removal of Electronic Expansion Valve and ThermistorProcedure Warning Be sure to wait

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2671.7 Removal of Sound Blanket and ReactorProcedure Warning Be sure to wait 10 minutes or m

Outdoor Unit (80 / 90 Class) SiEBE12-625268 Removal Procedure4Remove the sound blanket (top). Carefully remove the sound blanket, which is easily tor

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 2691.8 Removal of ShuntProcedure Warning Be sure to wait 10 minutes or more after turning of

Specifications SiEBE12-62518 SpecificationsDuct Connected Type50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the ext

Outdoor Unit (80 / 90 Class) SiEBE12-625270 Removal Procedure1.9 Removal of Solenoid Valve and Four Way ValveProcedure Warning Be sure to wait 10 minu

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 271 Before taking this procedure, make sure there is no refrigerant gas left in the refrige

Outdoor Unit (80 / 90 Class) SiEBE12-625272 Removal Procedure1.10 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after turn

SiEBE12-625 Outdoor Unit (80 / 90 Class)Removal Procedure 273 Make sure there is no refrigerant gas left inside the refrigerant pipes before starting

Outdoor Unit (68 / 75 Class) SiEBE12-625274 Removal Procedure2. Outdoor Unit (68 / 75 Class)2.1 Removal of Outer PanelsProcedure Warning Be sure to wa

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2752.2 Removal of Electrical BOXProcedure Warning Be sure to wait 10 minutes or more after t

Outdoor Unit (68 / 75 Class) SiEBE12-625276 Removal Procedure3Pull out the terminal board to open. Glass tube fuse and varistor cannot be replaced in

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2774Disconnect the compressor relay connector.5Remove the reactor lead wire.3. Removing the

Outdoor Unit (68 / 75 Class) SiEBE12-625278 Removal Procedure2Remove 1 screw of the electrical box.3Remove the drip-proof cover.4Disconnect the fan mo

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2792.3 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more after turning off

SiEBE12-625 SpecificationsSpecifications 1950Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the external static pressu

Outdoor Unit (68 / 75 Class) SiEBE12-625280 Removal Procedure5Lift up the control PCB.6Disconnect each wire harness connector linked to the control PC

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2817The figure shows the control PCB. Glass tube fuse 3A2. Removing the service monitor PCB

Outdoor Unit (68 / 75 Class) SiEBE12-625282 Removal Procedure2.4 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or more after turnin

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2832.5 Removal of Sound BlanketProcedure Warning Be sure to wait 10 minutes or more after tu

Outdoor Unit (68 / 75 Class) SiEBE12-625284 Removal Procedure2.6 Removal of Four Way Valve Coil, Solenoid Valve Coil, Electronic Expansion Valve Coil

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2855Take off the putty, and remove each thermistor. Place the thermistor so that its end co

Outdoor Unit (68 / 75 Class) SiEBE12-625286 Removal Procedure2.7 Removal of Four Way Valve, Solenoid Valve and ShuntProcedure Warning Be sure to wait

SiEBE12-625 Outdoor Unit (68 / 75 Class)Removal Procedure 2872.8 Removal of Solenoid Valve and ShuntProcedure Warning Be sure to wait 10 minutes or mo

Outdoor Unit (68 / 75 Class) SiEBE12-625288 Removal Procedure2.9 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after turni

SiEBE12-625Others 289Part 8Others1. Others ...2901.1 Tes

SiEBE12-625ii Table of Contents1. Introduction ...vi1.1 Safet

Specifications SiEBE12-62520 SpecificationsFloor / Ceiling Suspended Dual Type50Hz 230VModel FLKS25BAVMB FLKS35BAVMBRated Capacity 2.5kW Class 3.5kW C

Others SiEBE12-625290 Others1. Others1.1 Test Run from the Remote ControllerFor Heat pump In cooling mode, select the lowest programmable temperature;

SiEBE12-625 OthersOthers 2911.2 Jumper Settings1.2.1 When Two Units are Installed in One RoomWhen two indoor units are installed in one room, the two

Others SiEBE12-625292 Others1.2.3 Adjusting the Angle of the Intelligent Eye SensorFTK(X)S20-35C Once installation of the indoor unit is complete, ad

SiEBE12-625Appendix 293Part 9Appendix1. Piping Diagrams...2941.1 Indoor

Piping Diagrams SiEBE12-625294 Appendix1. Piping Diagrams1.1 Indoor Units1.1.1 Wall Mounted TypeFTKS20/25/35D3VMW(L) FTXS20/25/35D3VMW(L)FTKS20/25/35C

SiEBE12-625 Piping DiagramsAppendix 295FTKS50D2V1W(L) FTXS50D2V1W(L)FTK(X)S50/60EV1B FTKS71EV1B, FTKS71BAV1BM4D051577INDOOR UNITThermistoron heat exch

Piping Diagrams SiEBE12-625296 AppendixCTXG50EV1BW(S)FTXS71EV1B, FTXS71BAVMB FTXG25/35EV1BW(S)M4D040082MINDOOR UNITCross flow fanFan motorField piping

SiEBE12-625 Piping DiagramsAppendix 2971.1.2 Duct Connected TypeFDK(X)S25/35EAVMB, FDK(X)S50/60CVMB, FDK(X)S25/35CAVMB1.1.3 Floor / Ceiling Suspended

Piping Diagrams SiEBE12-625298 Appendix1.1.4 Floor Standing TypeFLXS25/35BAVMB FLXS50/60BAVMBM4D048722AINDOOR UNITSirocco fanFan motorField pipingFiel

SiEBE12-625 Piping DiagramsAppendix 299FVKS50BAVMB FVXS50BAVMBMM4.8CuT4.8CuT7.0CuT7.0CuT7.0CuT7.0CuT4D050804INDOOR UNITHeat exchangerField pipingField

SiEBE12-625 SpecificationsSpecifications 21Floor Standing Type50Hz 230VModel FVKS25BAVMB FVKS35BAVMBRated Capacity 2.5kW Class 3.5kW ClassFront Panel

Piping Diagrams SiEBE12-625300 Appendix1.2 Outdoor Units1.2.1 Cooling Only4MKS75E2(3)V1B4MKS90DAVMB9.5CuTOUTDOOR UNIT7.9CuTPROPELLER FANDC FAN MOTORHE

SiEBE12-625 Piping DiagramsAppendix 3011.2.2 Heat Pump4MXS68E2(3)V1B4MXS80DAVMBHEADEROUTDOOR UNIT12.7CuTPROPELLER FANDC FAN MOTORHEAT EXCHANGERCOMPRES

Wiring Diagrams SiEBE12-625302 Appendix2. Wiring Diagrams2.1 Indoor Units2.1.1 Wall Mounted TypeFTK(X)S20/25/35D3VMW(L)FTK(X)S20/25/35CAVMBR1T, R2T

SiEBE12-625 Wiring DiagramsAppendix 303FTK(X)S50D2V1W(L)FTK(X)S50/60/71EV1B, FTK(X)S71BAVMBPCB3PCB4LED2LED3H2P H3P LED1H1P S1WR1T t°S27S36S26PCB2S35S2

Wiring Diagrams SiEBE12-625304 AppendixFTXG25/35EV1BW(S), CTXG50EV1BW(S)2.1.2 Duct Connected TypeFDK(X)S25/35CAVMB, FDK(X)S50/60CVMB, FDK(X)S25/35EAVM

SiEBE12-625 Wiring DiagramsAppendix 3052.1.3 Floor / Ceiling Suspended Dual TypeFLK(X)S25/35/50/60BAVMB2.1.4 Floor Standing TypeFVK(X)S25/35/50BAVMBLE

Wiring Diagrams SiEBE12-625306 Appendix2.2 Outdoor Units2.2.1 Cooling only4MKS75E2(3)V1B, 4MKS90DAVMB2.2.2 Heat Pump4MXS68E2(3)V1B, 4MXS80DAVMBROOM A

SiEBE12-625Index iIndexNumerics3 minutes stand-by...81AA1...

SiEBE12-625ii IndexJ9...227L3...

SiEBE12-625Index iiiMID1...53MID2...

Specifications SiEBE12-62522 Specifications1.2 Outdoor Units - Cooling Only50Hz 230VNote:1. The data are based on the conditions shown in the table be

SiEBE12-625iv IndexS92...52, 257, 263, 276, 285S93...52, 256, 263, 276,

SiEBE12-625Drawings & Flow Charts vDrawings & Flow ChartsAanti-icing function in other rooms ...238ARC433A ...

SiEBE12-625vi Drawings & Flow ChartsFLKS50/60BAVMB ...297FLXS25/35BAVMB ...

Daikin Europe N.V. participates in the Eurovent Certification Programme for Air Conditioners (AC), Liquid Chilling Packages (LCP) and Fan Coil Units (

SiEBE12-625 SpecificationsSpecifications 231.3 Indoor Units - Heat PumpWall Mounted Type 50Hz 230VModelFTXG25EV1BW FTXG25EV1BSCooling Heating Cooling

Specifications SiEBE12-62524 Specifications50Hz 230VModelFTXS20D3VMW FTXS20D3VMLCooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.0kW ClassF

SiEBE12-625 SpecificationsSpecifications 2550Hz 230VModelFTXS35D3VMW FTXS35D3VMLCooling Heating Cooling HeatingRated Capacity 3.5kW Class 3.5kW ClassF

Specifications SiEBE12-62526 Specifications50Hz 230VModelFTXS35CAVMBCooling HeatingRated Capacity 3.5kW ClassFront Panel Color WhiteAir Flow Ratesm³/m

SiEBE12-625 SpecificationsSpecifications 2750Hz 230VModelFTXS50D2V1W FTXS50D2V1LCooling Heating Cooling HeatingRated Capacity 5.0kW Class 5.0kW ClassF

Specifications SiEBE12-62528 Specifications50Hz 230VModelFTXS71EV1B FTXS71BAVMBCooling Heating Cooling HeatingRated Capacity 7.1kW Class 7.1kW ClassFr

SiEBE12-625 SpecificationsSpecifications 29Duct Connected Type50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the ext

SiEBE12-625Table of Contents iii3.8 Fan Control...843.9 Liqu

Specifications SiEBE12-62530 Specifications50Hz 230VNote:1. The operating sound is based on the rear side suction inlet and the external static pressu

SiEBE12-625 SpecificationsSpecifications 31Floor / Ceiling Suspended Dual Type50Hz 230VModelFLXS25BAVMB FLXS35BAVMBCooling Heating Cooling HeatingRate

Specifications SiEBE12-62532 SpecificationsFloor Standing Type 50Hz 230VModelFVXS25BAVMB FVXS35BAVMBCooling Heating Cooling HeatingRated Capacity 2.5k

SiEBE12-625 SpecificationsSpecifications 331.4 Outdoor Units - Heat Pump50Hz 230VNote:1. The data are based on the conditions shown in the table below

Specifications SiEBE12-62534 Specifications

SiEBE12-625Printed Circuit Board Connector Wiring Diagram 35Part 3Printed Circuit BoardConnector Wiring Diagram1. Printed Circuit Board Connector Wiri

Printed Circuit Board Connector Wiring Diagram SiEBE12-62536 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring D

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 37PCB Detail PCB(1): Control PCBPCB(4): INTEL

Printed Circuit Board Connector Wiring Diagram SiEBE12-62538 Printed Circuit Board Connector Wiring Diagram1.1.2 FTK(X)S20~35CConnectorsNote: Other de

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 39PCBJP21JBJAJC5VGND12V(R2413)SW7PCB(1) Contr

SiEBE12-625iv Table of Contents5.13 Compressor Lock ...2155.14 DC Fan Lo

Printed Circuit Board Connector Wiring Diagram SiEBE12-62540 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCBPCB(2): Signa

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 411.1.3 FTK(X)S50~71E, FTK(X)S71BConnectorsNo

Printed Circuit Board Connector Wiring Diagram SiEBE12-62542 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCB (indoor unit

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 431.1.4 FTXG25~35E, CTXG50EConnectors PCB(1)

Printed Circuit Board Connector Wiring Diagram SiEBE12-62544 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCB (indoor unit

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 451.2 Duct Connected TypeConnectorsNote: Othe

Printed Circuit Board Connector Wiring Diagram SiEBE12-62546 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB (2): Display PCBSW1LED1LED2

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 471.3 Floor / Ceiling Suspended Dual TypeConn

Printed Circuit Board Connector Wiring Diagram SiEBE12-62548 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB (2): Power Supply PCBPCB (3)

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 491.4 Floor Standing TypeConnectorsNote: Othe

SiEBE12-625Table of Contents vPart 9 Appendix... 2931. Piping Diagrams...

Printed Circuit Board Connector Wiring Diagram SiEBE12-62550 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB (1): Power Supply PCB (25, 3

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 51PCB Detail PCB (2): Control PCBPCB (3): Dis

Printed Circuit Board Connector Wiring Diagram SiEBE12-62552 Printed Circuit Board Connector Wiring Diagram1.5 Outdoor UnitsConnectorsMID 1Inverter PC

SiEBE12-625 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 53SPMPCB Detail PCB (1): Control PCBMID11) CN

Printed Circuit Board Connector Wiring Diagram SiEBE12-62554 Printed Circuit Board Connector Wiring DiagramInverter PCB (MID2)SPMW VUNS34S72S70FU201 (

SiEBE12-625Function and Control 55Part 4Function and Control1. Main Functions...

Main Functions SiEBE12-62556 Function and Control1. Main FunctionsNote: See the list of functions for the functions applicable to different models.1.1

SiEBE12-625 Main FunctionsFunction and Control 57Inverter Features The inverter provides the following features: The regulating capacity can be chang

Main Functions SiEBE12-62558 Function and Control1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-SwingPower-airflow Dual FlapsThe large flap

SiEBE12-625 Main FunctionsFunction and Control 59FTK(X)S20-50DThe vertical swing flap is controlled not to blow the air directly on the person in the

SiEBE12-625 Introductionvi1. Introduction1.1 Safety CautionsCautions and Warnings Be sure to read the following safety cautions before conducting rep

Main Functions SiEBE12-62560 Function and Control1.3 Operation Starting ControlFTXG25-35E, CTXG50EThe system carries out the following control at the

SiEBE12-625 Main FunctionsFunction and Control 611.4 Fan Speed Control for Indoor UnitsControl Mode The airflow rate can be automatically controlled d

Main Functions SiEBE12-62562 Function and Control1.5 Programme Dry FunctionProgramme dry function removes humidity while preventing the room temperatu

SiEBE12-625 Main FunctionsFunction and Control 631.6 Automatic OperationAutomatic Cooling / Heating Function (Heat Pump Only)When the AUTO mode is sel

Main Functions SiEBE12-62564 Function and Control1.7 Thermostat ControlThermostat control is based on the difference between the room temperature and

SiEBE12-625 Main FunctionsFunction and Control 651.8 Night Set ModeWhen the OFF timer is set, the Night Set circuit automatically activates.The Night

Main Functions SiEBE12-62566 Function and Control1.9 ECONO ModeOutline FTK(X)S20-50DThe "ECONO mode" reduces the maximum operating current a

SiEBE12-625 Main FunctionsFunction and Control 671.10 INTELLIGENT EYE (Wall Mounted Type Only)This is the function that detects existence of humans in

Main Functions SiEBE12-62568 Function and Control Since the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes low and

SiEBE12-625 Main FunctionsFunction and Control 691.11 HOME LEAVE OperationOutline In order to respond to the customer's need for immediate heatin

Introduction SiEBE12-625vii1.1.2 Cautions Regarding Products after RepairCautionDo not repair the electrical components with wet hands.Working on the

Main Functions SiEBE12-62570 Function and Control1.12 Inverter POWERFUL OperationOutline In order to exploit the cooling and heating capacity to full

SiEBE12-625 Main FunctionsFunction and Control 711.13 Other Functions1.13.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast tha

Main Functions SiEBE12-62572 Function and Control1.13.5 Photocatalytic Deodorizing FilterPhotocatalytic Deodorizing Filter demonstrates powerful oxida

SiEBE12-625 Function of Main Structural PartsFunction and Control 732. Function of Main Structural Parts2.1 Main Structural PartsHeat Pump ModelCoolin

Function of Main Structural Parts SiEBE12-62574 Function and Control2.2 Function of Thermistor2.2.1 Heat Pump ModelA Outdoor Heat ExchangerThermisto

SiEBE12-625 Function of Main Structural PartsFunction and Control 75D Indoor Heat ExchangerThermistor1. The indoor heat exchanger thermistors are us

Function of Main Structural Parts SiEBE12-62576 Function and Control2.2.2 Cooling Only ModelA Outdoor Heat ExchangerThermistor1. The outdoor heat ex

SiEBE12-625 Function of Main Structural PartsFunction and Control 77D Indoor Heat ExchangerThermistor1. The indoor heat exchanger thermistors are us

Control Specification SiEBE12-62578 Function and Control3. Control Specification3.1 Mode HierarchyOutline There are two modes; the mode selected in us

SiEBE12-625 Control SpecificationFunction and Control 793.2 Frequency ControlOutline Frequency that corresponds to each room’s capacity will be determ

SiEBE12-625 Introductionviii1.1.3 Inspection after RepairBe sure to use an exclusive power circuit for the equipment, and follow the technical standar

Control Specification SiEBE12-62580 Function and Control2. Determine upper limit frequency Set a minimum value as an upper limit frequency among the

SiEBE12-625 Control SpecificationFunction and Control 813.3 Controls at Mode Changing / Start-up3.3.1 Preheating OperationOutline Operate the inverter

Control Specification SiEBE12-62582 Function and Control3.4 Discharge Pipe ControlOutline The discharge pipe temperature is used as the compressor&apo

SiEBE12-625 Control SpecificationFunction and Control 833.6 Freeze-up Protection ControlOutline During cooling operation, the signals being sent from

Control Specification SiEBE12-62584 Function and Control3.8 Fan ControlOutline Fan control is carried out with following functions.1. Fan ON control f

SiEBE12-625 Control SpecificationFunction and Control 853.10 Defrost ControlOutline Heat Pump OnlyDefrosting is carried out by the cooling cycle (reve

Control Specification SiEBE12-62586 Function and Control3.11 Low Hz High Pressure LimitOutline Heat Pump OnlySet the upper limit of high pressure in a

SiEBE12-625 Control SpecificationFunction and Control 87Detail The followings are the examples of control which function in each mode by the electroni

Control Specification SiEBE12-62588 Function and Control3.12.1 Fully Closing with Power ONInitialize the electronic expansion valve when turning on th

SiEBE12-625 Control SpecificationFunction and Control 893.12.7 Disconnection of the Discharge Pipe ThermistorOutline Detect a disconnected discharge p