Daikin CDXS25CVMA Spécifications

C-Series[Applied Models]zInverter Multi : Cooling OnlyzInverter Multi : Heat Pump Si12 - 411A

Si12-411A Introductionix1.1.3 Inspection after RepairBe sure to use an exclusive power circuit for the equipment, and follow the technical standards r

Si12-411A Function of Main Structural PartsFunction and Control 89D Indoor Heat Exchanger Thermistor (DCN)1. An indoor heat exchanger thermistor is

Control Specification Si12-411A90 Function and Control3. Control Specification3.1 Mode HierarchyOutline There are two modes; the mode selected in user

Si12-411A Control SpecificationFunction and Control 913.2 Frequency ControlOutline Frequency that corresponds to each room’s capacity will be determin

Control Specification Si12-411A92 Function and Control2. Determine upper limit frequencySet a minimum value as an upper limit frequency among the fre

Si12-411A Control SpecificationFunction and Control 933.3 Controls at Mode Changing / Start-up3.3.1 Preheating OperationOutline Operate the inverter i

Control Specification Si12-411A94 Function and Control3.4 Discharge Pipe ControlOutline The discharge pipe temperature is used as the compressor'

Si12-411A Control SpecificationFunction and Control 953.6 Freeze-up Protection ControlOutline During cooling operation, the signals being sent from th

Control Specification Si12-411A96 Function and Control3.8 Fan ControlOutline Fan control is carried out according to the following priority.1. Fan ON

Si12-411A Control SpecificationFunction and Control 973.10 Defrost ControlOutline Heat Pump OnlyDefrosting is carried out by the cooling cycle (revers

Control Specification Si12-411A98 Function and Control3.11 Low Hz High Pressure LimitOutline Heat Pump OnlySet the upper limit of high pressure in a l

Introduction Si12-411Ax1.1.4 Using IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is des

Si12-411A Control SpecificationFunction and Control 99Detail The followings are the examples of control which function in each mode by the electronic

Control Specification Si12-411A100 Function and Control3.12.1 Fully Closing with Power ONInitialize the electronic expansion valve when turning on the

Si12-411A Control SpecificationFunction and Control 1013.12.8 Target Discharge Pipe Temperature ControlObtain the target discharge pipe temperature fr

Control Specification Si12-411A102 Function and Control3.12.11Control when frequency is changedWhen the target pipe temperature control is active, if

Si12-411A Control SpecificationFunction and Control 1033.13 Malfunctions3.13.1 Sensor Malfunction DetectionSensor malfunction may occur either in the

Control Specification Si12-411A104 Function and ControlDetail Judgment by Input CurrentWhen an output frequency is exceeds 55 Hz and the input current

Si12-411A Control SpecificationFunction and Control 1053.15 Wiring-Error CheckOutline The convenient Wiring Error Check function is designed for the m

Control Specification Si12-411A106 Function and ControlChecking the current setting data on the microcomputer memoryThose data can be checked by looki

Si12-411A Control SpecificationFunction and Control 1073.16 Additional Function3.16.1 Connection Pipe Condensation Preventing FunctionThis control is

Control Specification Si12-411A108 Function and Control3.16.5 Cooling / Heating Mode LockUse the S15 connector to set the unit to only cool or heat.Se

Si12-411AList of Functions 1Part 1List of Functions1. List of Functions ...

Si12-411ASystem Configuration 109Part 5System Configuration1. System Configuration...

System Configuration Si12-411A110 System Configuration1. System Configuration1.1 Operation InstructionsAfter the installation and test operation of th

Si12-411A InstructionSystem Configuration 1112. InstructionNote: This instruction is appropriate for R22 models.2.1 Contents and Reference Page : Ill

Instruction Si12-411A112 System Configuration2.2 Safety PrecautionsSafety precautions•Keep this manual where the operator can easily find them.• Read

Si12-411A InstructionSystem Configuration 113•Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not rem

Instruction Si12-411A114 System Configuration2.3 Names of PartsFTK(X)E 25/35 BNames of parts Indoor UnitONOFF13456791011214 15 16812 13

Si12-411A InstructionSystem Configuration 115 Outdoor Unit Indoor Unit1. Air filter2. Photocatalytic deodorizing filter orAir purifying filter:•The

Instruction Si12-411A116 System Configuration Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays the

Si12-411A InstructionSystem Configuration 117FTK(X)D 50/60/71 BNames of parts Indoor Unit Main unit control panel71411121343129108651615

Instruction Si12-411A118 System ConfigurationOutdoor UnitIndoor Unit1.Air filter2. Photocatalytic deodorizing filter orAir purifying filter:2These f

List of Functions Si12-411A2 List of Functions1. List of Functions1.1 Cooling Only Models1.1.1 R22 SeriesCategory FunctionsFTKE25/35BVMFTKD50-71BVMCDK

Si12-411A InstructionSystem Configuration 119 Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:•It displays the

Instruction Si12-411A120 System ConfigurationCDK(X)D 25/35/50/60 CNames of partsIndoor Unit36891071452

Si12-411A InstructionSystem Configuration 121 Outdoor Unit Indoor Unit1.Air outlet2. Air outlet grille (Field supply)• Appearance of the Air outle

Instruction Si12-411A122 System Configuration Remote Controller1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays t

Si12-411A InstructionSystem Configuration 123FLK(X) 25/35/50/60 ANames of parts Indoor UnitThe indoor unit can be installed either to the ceiling or t

Instruction Si12-411A124 System ConfigurationOutdoor UnitIndoor Unit1. Louvres (vertical blades)The louvres are inside of the air outlet.2. Air outl

Si12-411A InstructionSystem Configuration 125 Remote Controller1. Signal Transmitter:• It sends signals to the indoor unit.2. Display:• It displays t

Instruction Si12-411A126 System Configuration2.4 Preparation before OperationPreparation Before Operation To set the batteries1. Press with a finger

Si12-411A InstructionSystem Configuration 127Preparation Before Operation To operate the remote controller• To use the remote controller, aim the tran

Instruction Si12-411A128 System Configuration To set the clock1. Press “CLOCK button”.is displayed.blinks.2. Press “TIMER setting button” to set the c

Si12-411A List of FunctionsList of Functions 3Category FunctionsFLK25-60AVMA2MKD58BVM3MKD58·75BVM4MKD75·90BVMCategory FunctionsFLK25-60AVMA2MKD58BVM3M

Si12-411A InstructionSystem Configuration 1292.5 AUTO · DRY · COOL · HEAT · FAN OperationAUTO · DRY · COOL · HEAT · FAN OperationThe air conditioner o

Instruction Si12-411A130 System Configuration To change the air flow rate setting5. Press “FAN setting button”.• Indoor unit quiet operationWhen the a

Si12-411A InstructionSystem Configuration 1312.6 Adjusting the Air Flow DirectionFTK(X)E 25/35 BAdjusting the Air Flow DirectionYou can adjust the air

Instruction Si12-411A132 System Configuration To adjust the vertical blades (louvres)Hold the knob and move the louvres.(You will find a knob on the l

Si12-411A InstructionSystem Configuration 133FTK(X)D 50/60/71 BAdjusting the Air Flow DirectionYou can adjust the air flow direction to increase your

Instruction Si12-411A134 System Configuration To 3-D Airflow1. 3. press “SWING button”: the “ ” “ ” display will light up and the flaps and louvers wi

Si12-411A InstructionSystem Configuration 135FLK(X) 25/35/50/60 AAdjusting the Air Flow DirectionYou can adjust the air flow direction to increase you

Instruction Si12-411A136 System Configuration To adjust the vertical blades (louvres)• When adjusting the louvre, use a robust and stable stool and w

Si12-411A InstructionSystem Configuration 1372.7 POWERFUL OperationPOWERFUL OperationPOWERFUL operation quickly maximizes the cooling (heating) effect

Instruction Si12-411A138 System Configuration2.8 OUTDOOR UNIT SILENT OperationOUTDOOR UNIT SILENT OperationOUTDOOR UNIT SILENT operation lowers the n

List of Functions Si12-411A4 List of FunctionsCategory FunctionsFTKE25/35BVMAFTKD50-71BVMACDKD25-60CVMACategory FunctionsFTKE25/35BVMAFTKD50-71BVMACDK

Si12-411A InstructionSystem Configuration 1392.9 HOME LEAVE OperationHOME LEAVE OperationHOME LEAVE operation is a function which allows you to record

Instruction Si12-411A140 System Configuration What’s the HOME LEAVE operationIs there a set temperature and air flow rate which is most comfortable, a

Si12-411A InstructionSystem Configuration 1412.10 INTELLIGENT EYE OperationFTK(X)E 25/35 BINTELLIGENT EYE Operation“INTELLIGENT EYE” is the infrared s

Instruction Si12-411A142 System Configuration To adjust the angle of the INTELLIGENT EYE sensor• You can adjust the angle of the INTELLIGENT EYE senso

Si12-411A InstructionSystem Configuration 143FTK(X)D 50/60/71 BINTELLIGENT EYE Operation“INTELLIGENT EYE” is the infrared sensor which detects the hum

Instruction Si12-411A144 System Configuration“INTELLIGENT EYE” is useful for Energy SavingNotes on “INTELLIGENT EYE”CAUTION Energy saving operation

Si12-411A InstructionSystem Configuration 1452.11 TIMER OperationTIMER OperationTimer functions are useful for automatically switching the air conditi

Instruction Si12-411A146 System Configuration To use ON TIMER operation• Check that the clock is correct. If not, set the clock to the present time. 1

Si12-411A InstructionSystem Configuration 1472.12 Note for Multi SystemNote for Multi System〈〈 〈〈 〈〈 〈〈 What is a “Multi System”? 〉〉〉〉〉〉〉〉This system

Instruction Si12-411A148 System Configuration Priority Room SettingThe Priority Room Setting requires initial programming during installation. Please

Si12-411A List of FunctionsList of Functions 5Category Functions3MKD75BVMA4MKD90BVMACategory Functions3MKD75BVMA4MKD90BVMABasic FunctionInverter (with

Si12-411A InstructionSystem Configuration 1492.13 Care and CleaningFTK(X)E 25/35 BCare and CleaningCAUTION Indoor unit, Outdoor unit and Remote cont

Instruction Si12-411A150 System Configuration1. Open the front grille.2. Pull out the air filters.•Push a little upwards the tab at the center of eac

Si12-411A InstructionSystem Configuration 151Check Before a long idle period1. Operate the “fan only” for several hours on a fine day to dry out the i

Instruction Si12-411A152 System ConfigurationFTK(X)D 50/60/71 BCare and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe them

Si12-411A InstructionSystem Configuration 1531. Open the front grille. 2. Pull out the air filters.•Push a little upwards the tab at the center of ea

Instruction Si12-411A154 System ConfigurationCheck Before a long idle period1. Operate the “fan only” for several hours on a fine day to dry out the i

Si12-411A InstructionSystem Configuration 155CDK(X)D 25/35/50/60 CCare and CleaningCAUTION Cleaning the air filter and suction grille (Option)• Be s

Instruction Si12-411A156 System ConfigurationFLK(X) 25/35/50/60 ACare and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe the

Si12-411A InstructionSystem Configuration 1571. Open the front grille.2. Pull out the air filters.• Push upwards the tab at the center of each air fi

Instruction Si12-411A158 System ConfigurationCheck Before a long idle period1. Operate the “fan only” for several hours on a fine day to dry out the

List of Functions Si12-411A6 List of Functions1.1.2 R410A SeriesCategory FunctionsFTKS20-35CVMB(9)(8)FTKS50-71BVMBCDKS25-60CVMBCategory FunctionsFTKS2

Si12-411A InstructionSystem Configuration 1592.14 TroubleshootingTroubleshootingThe following cases are not air conditioner troubles but have some rea

Instruction Si12-411A160 System ConfigurationPlease check again before calling a repair person.Check again.Case CheckThe air conditioner does not oper

Si12-411A InstructionSystem Configuration 161WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.

Instruction Si12-411A162 System Configuration

Si12-411AService Diagnosis 163Part 6Service Diagnosis1. Caution for Diagnosis...

Caution for Diagnosis Si12-411A164 Service Diagnosis1. Caution for Diagnosis1.1 Troubleshooting with the Operation LampThe operation lamp flashes when

Si12-411A Caution for DiagnosisService Diagnosis 165Caution: Operation stops suddenly. (Operation lamp blinks.)Cause of above trouble could be "O

Problem Symptoms and Measures Si12-411A166 Service Diagnosis2. Problem Symptoms and MeasuresProblem Symptom Check Item Details of Measure Page No. to

Si12-411A Service Check FunctionService Diagnosis 1673. Service Check FunctionIn the ARC433A series, the temperature display sections on the main unit

Code Indication on the Remote Controller Si12-411A168 Service Diagnosis4. Code Indication on the Remote Controller4.1 Error Codes and Description of F

Si12-411A List of FunctionsList of Functions 7Category FunctionsFLKS25-60BVMBFVKS25-50BVMB3MKS50BVMB(8)4MKS58BVMB(8)4MKS75·90BVMBCategory FunctionsFLK

Si12-411A TroubleshootingService Diagnosis 1695. Troubleshooting5.1 Indoor Units - : Not used for troubleshooting ∗ : Varies depending on the cases.In

Troubleshooting Si12-411A170 Service Diagnosis5.2 Outdoor Units4: ON, 1: OFF, 5: BlinksGreen : Flashes when in normal conditionRed : OFF in normal con

Si12-411A TroubleshootingService Diagnosis 1715.3 Indoor Unit PCB AbnormalityRemote Controller DisplayA1Method of Malfunction DetectionEvaluation of z

Troubleshooting Si12-411A172 Service Diagnosis5.4 Freeze-up Protection Control or High Pressure ControlRemote Controller DisplayA5Method of Malfunctio

Si12-411A TroubleshootingService Diagnosis 173TroubleshootingCheck No.6Refer to P.209Note: If the outside temperature is below –10°C in the cooling mo

Troubleshooting Si12-411A174 Service Diagnosis5.5 Fan Motor or Related Abnormality5.5.1 AC MotorRemote Controller DisplayA6Method of Malfunction Detec

Si12-411A TroubleshootingService Diagnosis 1755.5.2 DC MotorRemote Controller DisplayA6Method of Malfunction DetectionThe rotation speed detected by t

Troubleshooting Si12-411A176 Service DiagnosisTroubleshootingCheck No.01Refer to P.206Check No.02Refer to P.206Replace fan motor.Replace indoor unit P

Si12-411A TroubleshootingService Diagnosis 1775.6 Thermistor or Related Abnormality (Indoor Unit)Remote Controller DisplayC4, C9 Method of Malfunction

Troubleshooting Si12-411A178 Service Diagnosis5.7 Shutter Drive Motor / Shutter Limit Switch AbnormalityRemote Controller DisplayC7Method of Malfuncti

List of Functions Si12-411A8 List of Functions1.2 Heat Pump Models1.2.1 R22 SeriesCategory FunctionsFTXE25/35BVMAFTXD50-71BVMACDXD25-60CVMACategory Fu

Si12-411A TroubleshootingService Diagnosis 1795.8 Signal Transmission Error (between Indoor and Outdoor Units)Remote Controller DisplayU4Method of Mal

Troubleshooting Si12-411A180 Service Diagnosis5.9 Unspecified Voltage (between Indoor and Outdoor Units)Remote Controller Display UAMethod of Malfunct

Si12-411A TroubleshootingService Diagnosis 1815.10 Freeze-up Protection ControlRemote Controller DisplayA5Outdoor Unit LED DisplayA 5 1 4 2 1 3

Troubleshooting Si12-411A182 Service DiagnosisTroubleshootingCheck No.4Refer to P.207Check No.6Refer to P.209Check the wiring and piping.Check No. 4Ch

Si12-411A TroubleshootingService Diagnosis 1835.11 OL Activation (Compressor Overload)Remote Controller DisplayE5Outdoor Unit LED DisplayA 5 1 4 2

Troubleshooting Si12-411A184 Service Diagnosis5.12 Compressor LockRemote Controller DisplayE6Outdoor Unit LED DisplayA 5 1 1 2 4 3 4 4 1Method

Si12-411A TroubleshootingService Diagnosis 1855.13 DC Fan LockRemote Controller DisplayE7Outdoor Unit LED DisplayA 5 1 4 2 4 3 4 4 4Method of

Troubleshooting Si12-411A186 Service Diagnosis5.14 Input Over Current DetectionRemote Controller DisplayE8Outdoor Unit LED DisplayA 5 1 1 2 4 3

Si12-411A TroubleshootingService Diagnosis 187TroubleshootingCheck No.7Refer to P.210Check No.8Refer to P.211Check No.14Refer to P.214Replace the outd

Troubleshooting Si12-411A188 Service Diagnosis5.15 Four Way Valve AbnormalityRemote Controller DisplayEAOutdoor Unit LED DisplayA 5 1 4 2 1 3 1

Si12-411ATable of Contents iSUPER MULTI NXC-SerieszCooling OnlyIndoor UnitFTKE25BVM FTKE25BVMA FTKS20CVMB(9) FLKS25BVMBFTKE35BVM FTKE35BVMA FTKS25CVMB

Si12-411A List of FunctionsList of Functions 9Category FunctionsFLX25-60AVMA3MXD68BVMA4MXD80BVMACategory FunctionsFLX25-60AVMA3MXD68BVMA4MXD80BVMABasi

Si12-411A TroubleshootingService Diagnosis 189TroubleshootingCheck No.5Refer to P.208Check No.6Refer to P.209Check No.11Refer to P.212Correct.Reconnec

Troubleshooting Si12-411A190 Service Diagnosis5.16 Discharge Pipe Temperature ControlRemote Controller DisplayF3Outdoor Unit LED DisplayA 5 1 4 2

Si12-411A TroubleshootingService Diagnosis 1915.17 Position Sensor AbnormalityRemote Controller DisplayH6Outdoor Unit LED DisplayA 5 1 4 2 4 3 1

Troubleshooting Si12-411A192 Service Diagnosis5.18 CT or Related AbnormalityRemote Controller DisplayH8Outdoor Unit LED DisplayA 5 1 4 2 4 3 1

Si12-411A TroubleshootingService Diagnosis 193TroubleshootingCheck No.12Refer to P.213Turn off the power and turn it on again.Check No. 12Check the ca

Troubleshooting Si12-411A194 Service Diagnosis5.19 Thermistor or Related Abnormality (Outdoor Unit)Remote Controller DisplayP4, J3, J6, J8, J9, H9Outd

Si12-411A TroubleshootingService Diagnosis 195TroubleshootingCheck No.6Refer to P.209P4 : Radiation fin thermistorJ3 : Discharge pipe temperature ther

Troubleshooting Si12-411A196 Service Diagnosis5.20 Electrical Box Temperature RiseRemote Controller DisplayL3Outdoor Unit LED DisplayA 5 1 4 2 4

Si12-411A TroubleshootingService Diagnosis 197TroubleshootingCheck No.6Refer to P.209Check No.7Refer to P.210Check No.9Refer to P.211Turn off the powe

Troubleshooting Si12-411A198 Service Diagnosis5.21 Radiation Fin Temperature RiseRemote Controller DisplayL4Outdoor Unit LED DisplayA 5 1 1 2 1

List of Functions Si12-411A10 List of Functions1.2.2 R410A SeriesCategory FunctionsFTXS20-35CVMB(9)(8)FTXS50-71BVMBCDXS25-60CVMBCategory FunctionsFTXS

Si12-411A TroubleshootingService Diagnosis 199TroubleshootingCheck No.6Refer to P.209Check No.7Refer to P.210Check No.9Refer to P.211Turn off the powe

Troubleshooting Si12-411A200 Service Diagnosis5.22 Output Over Current DetectionRemote Controller DisplayL5Outdoor Unit LED DisplayA 5 1 1 2 1 3

Si12-411A TroubleshootingService Diagnosis 201TroubleshootingCheck No.7Refer to P.210Check No.8Refer to P.211Check No.13Refer to P.213Fully open the s

Troubleshooting Si12-411A202 Service Diagnosis5.23 Insufficient GasRemote Controller DisplayU0Outdoor Unit LED DisplayA 5 1 1 2 1 3 4 4 4Metho

Si12-411A TroubleshootingService Diagnosis 203TroubleshootingCheck No.4Refer to P.207Check No.6Refer to P.209Reconnect in position.Open the stop valve

Troubleshooting Si12-411A204 Service Diagnosis5.24 Low-voltage DetectionRemote Controller DisplayU2Outdoor Unit LED DisplayA 5 1 4 2 1 3 1 4 4

Si12-411A TroubleshootingService Diagnosis 2055.25 Anti-icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)Remote C

Check Si12-411A206 Service Diagnosis6. Check6.1 How to Check6.1.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Check m

Si12-411A CheckService Diagnosis 2076.1.3 Electronic Expansion Valve CheckCheck No.4 Conduct the followings to check the electronic expansion valve (E

Check Si12-411A208 Service Diagnosis6.1.4 Four Way Valve Performance CheckCheck No.5Turn off the power and turn it on again.Start the heating-mode run

Si12-411A List of FunctionsList of Functions 11Category FunctionsFLXS25-60BVMBFVXS25-50BVMB3MXS52BVMB(8)4MXS68BVMB94MXS80BVMB9Category FunctionsFLXS25

Si12-411A CheckService Diagnosis 2096.1.5 Thermistor Resistance CheckCheck No.6 Remove the connectors of the thermistors on the PCB, and measure the r

Check Si12-411A210 Service Diagnosis6.1.6 Installation Condition CheckCheck No.7Installation condition checkNormalChange the position of the air disch

Si12-411A CheckService Diagnosis 2116.1.7 Discharge Pressure CheckCheck No.86.1.8 Outdoor Unit Fan System Check (With DC Motor)Check No.9Discharge pre

Check Si12-411A212 Service Diagnosis6.1.9 Power Supply Waveforms CheckCheck No.10 Measure the power supply waveform between pins 1 and 3 on the termin

Si12-411A CheckService Diagnosis 2136.1.11 Capacitor Voltage CheckCheck No.12 Before this checking, be sure to check the main circuit for short-circui

Check Si12-411A214 Service Diagnosis6.1.13 Main Circuit Electrolytic Capacitor CheckCheck No.14Checking the main circuit electrolytic capacitorzNever

Si12-411A CheckService Diagnosis 2156.1.15 Hall IC CheckCheck No.16 1. Check the connector connection.2. With the power ON, operation OFF, and the con

Check Si12-411A216 Service Diagnosis

Si12-411ARemoval Procedure 217Part 7Removal Procedure1. Outdoor Unit (80 / 90 Class) ...21

Outdoor Unit (80 / 90 Class) Si12-411A218 Removal Procedure1. Outdoor Unit (80 / 90 Class)1.1 Removal of Outer PanelsProcedure Warning Be sure to wait

List of Functions Si12-411A12 List of FunctionsCategory FunctionsATXS20·25·35CVMB(9)Category FunctionsATXS20·25·35CVMB(9)Basic FunctionInverter (with

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2193Unscrew 3 screws of the right panel, slide it downwards and release the tabs to remove.4T

Outdoor Unit (80 / 90 Class) Si12-411A220 Removal Procedure6Unscrew 3 screws of the front panel to remove.7Remove 4 screws of the discharge outlet gri

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2211.2 Removal of Propeller FansProcedure Warning Be sure to wait 10 minutes or more after tur

Outdoor Unit (80 / 90 Class) Si12-411A222 Removal Procedure1.3 Removal of Electrical BoxProcedure Warning Be sure to wait 10 minutes or more after tur

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2233Remove the earth wire.4Remove 1 screw of the terminal board.5Release the tab on the top ri

Outdoor Unit (80 / 90 Class) Si12-411A224 Removal Procedure2. Remove each wire harness1Disconnect 4 connectors of the electronic expansion valve lead

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2254Remove the connector S92 for gas pipe thermistor.5Remove the connector S90 for thermistor.

Outdoor Unit (80 / 90 Class) Si12-411A226 Removal Procedure8Remove the relay connector for compressor.9Remove the electrical box cover.10Disconnect th

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 22712Take off the thermistor presser spring, and remove the thermistor.Place the thermistor s

Outdoor Unit (80 / 90 Class) Si12-411A228 Removal Procedure3Remove the outdoor air thermistor lead wire from the groove.4Remove each wire harness, and

Si12-411A List of FunctionsList of Functions 13Category FunctionsATXS50CVMB3AMXS52BVMBCategory FunctionsATXS50CVMB3AMXS52BVMBBasic FunctionInverter (w

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2291.4 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more after turning off al

Outdoor Unit (80 / 90 Class) Si12-411A230 Removal Procedure4Lift the PCB at the terminal board side.5Disconnect each wire harness connector linked to

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2316The figure shows the controller PCB.S20: Electronic expansion valve coil A portS21: Electr

Outdoor Unit (80 / 90 Class) Si12-411A232 Removal Procedure1.5 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or more after turning

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2334Remove 4 screws of the fan motor.When reassembling, fix the lead wire to avoid contact wi

Outdoor Unit (80 / 90 Class) Si12-411A234 Removal Procedure1.6 Removal of Electronic Expansion Valve and ThermistorProcedure Warning Be sure to wait 1

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2351.7 Removal of Sound Insulation and ReactorProcedure Warning Be sure to wait 10 minutes or

Outdoor Unit (80 / 90 Class) Si12-411A236 Removal Procedure4Remove the noise insulation (top).Carefully remove the noise insulation, which is easily

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 2371.8 Removal of ShuntProcedure Warning Be sure to wait 10 minutes or more after turning off

Outdoor Unit (80 / 90 Class) Si12-411A238 Removal Procedure1.9 Removal of Solenoid Valve and Four Way ValveProcedure Warning Be sure to wait 10 minute

List of Functions Si12-411A14 List of FunctionsCategory FunctionsFTXS25/35BVMAFTXS50-71BVMA(8)CDXS25-60CVMACategory FunctionsFTXS25/35BVMAFTXS50-71BVM

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 239Before taking this procedure, make sure there is no refrigerant gas left in the refrigeran

Outdoor Unit (80 / 90 Class) Si12-411A240 Removal Procedure1.10 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after turnin

Si12-411A Outdoor Unit (80 / 90 Class)Removal Procedure 241Make sure there is no refrigerant gas left inside the refrigerant pipes before starting th

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A242 Removal Procedure2. Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)2.1 Removal of Outer PanelsPro

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2432.2 Removal of Electrical BOXProcedure Warning Be sure to wait 10 minutes or

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A244 Removal Procedure3Pull out the terminal board to open.Glass tube fuse and varistor cannot be

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2454Disconnect the compressor relay connector.5Remove the reactor lead wire.3.

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A246 Removal Procedure2Remove 1 screw of the electrical box.3Remove the drip-proof cover.4Disconne

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2472.3 Removal of PCBProcedure Warning Be sure to wait 10 minutes or more after

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A248 Removal Procedure5Lift up the control PCB.6Disconnect each wire harness connector linked to t

Si12-411A List of FunctionsList of Functions 15Category FunctionsFLXS25-60BVMAFVXS35/50BVMACategory FunctionsFLXS25-60BVMAFVXS35/50BVMABasic FunctionI

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2497The figure shows the control PCB.Glass tube fuse 3A2. Removing the service

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A250 Removal Procedure2.4 Removal of Fan MotorProcedure Warning Be sure to wait 10 minutes or more

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2512.5 Removal of Sound InsulationProcedure Warning Be sure to wait 10 minutes

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A252 Removal Procedure2.6 Removal of Four Way Valve Coil, Solenoid Valve Coil, Electronic Expansio

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2535Take off the putty, and remove each thermistor.Place the thermistor so tha

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A254 Removal Procedure2.7 Removal of Four Way Valve, Solenoid Valve and ShuntProcedure Warning Be

Si12-411A Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)Removal Procedure 2552.8 Removal of Solenoid Valve and ShuntProcedure Warning Be sure to wait 10

Outdoor Unit (50 / 52 / 58 / 68 / 75 Class) Si12-411A256 Removal Procedure2.9 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or mor

Si12-411AOthers 257Part 8Others1. Others ...2581.1 Test

Others Si12-411A258 Others1. Others1.1 Test Run from the Remote ControllerTrial Operation and Testing1. Measure the supply voltage and make sure that

List of Functions Si12-411A16 List of FunctionsCategory Functions4MXS68CVMA4MXS80CVMACategory Functions4MXS68CVMA4MXS80CVMA Basic FunctionInverter (wi

Si12-411A OthersOthers 2591.2 Jumper Settings1.2.1 When Two Units are Installed in One RoomHow to set the different addresses.When two indoor units

Others Si12-411A260 Others1.2.3 Adjusting the Angle of the Intelligent Eye SensorWall Mounted Type 25 / 35 Class OnlyOnce installation of the indoor

Si12-411AAppendix 261Part 9Appendix1. Piping Diagrams...2621.1 Indoor U

Piping Diagrams Si12-411A262 Appendix1. Piping Diagrams1.1 Indoor Units1.1.1 Wall Mounted TypeFTKE25/35BVM, FTK(X)E25/35BVMA FTK(X)S20CVMB(9), FTK(X)S

Si12-411A Piping DiagramsAppendix 263FTKD71BVM, FTK(X)D71BVMA(15.9CuT)FIELD PIPINGFIELD PIPING(9.5CuT)CROSS FLOW FANFAN MOTOR(7.9CuT)INDOOR UNIT(12.7C

Piping Diagrams Si12-411A264 Appendix1.1.2 Duct Connected Type1.1.3 Floor / Ceiling Suspended Dual TypeCDKD25/35/50/60CVM, CDK(X)D25/35/50/60CVMACDK(X

Si12-411A Piping DiagramsAppendix 2651.1.4 Floor Standing TypeFVK(X)S25/35BVMB, FVXS35BVMAFVK(X)S50BVMB, FVXS50BVMAFIELD PIPINGFIELD PIPING(6.4CuT)(9.

Piping Diagrams Si12-411A266 Appendix1.2 Outdoor Units1.2.1 Cooling Only2MK58BVM3MK58BVMREFRIGERANT FLOW9.5CuTHEAT EXCHANGERTHERMISTOR(DE)OUTDOOR UNIT

Si12-411A Piping DiagramsAppendix 2673MKD75BVM, 3MKD75BVMA4MKD75BVMREFRIGERANT FLOW9.5CuTHEAT EXCHANGERTHERMISTOR(DE)OUTDOOR UNITCOOLING7.9CuTPROPELLE

Piping Diagrams Si12-411A268 Appendix4MKD90BVM, 4MKD90BVMA3MKS50BVMB(8)REFRIGERANT FLOW9. 5CuTHEAT EXCHANGERTHERMISTOR(DE)COOLING7. 9CuT7. 9CuT7. 9CuT

Si12-411ASpecifications 17Part 2Specifications1. Specifications ...

Si12-411A Piping DiagramsAppendix 2694MKS58BVMB(8)4MKS75BVMBREFRIGERANT FLOW9.5CuTHEAT EXCHANGERTHERMISTOR(DE)OUTDOOR UNITCOOLING7.9CuTPROPELLER FANDC

Piping Diagrams Si12-411A270 Appendix4MKS90BVMBREFRIGERANT FLOW9.5CuTHEAT EXCHANGERTHERMISTOR(DE)OUTDOOR UNITCOOLING7.9CuT7.9CuT7.9CuT7.9CuTPROPELLER

Si12-411A Piping DiagramsAppendix 2711.2.2 Heat Pump3MXS52BVMB(8), 3AMXS52BVMB3MXD68BVMAREFRIGERANT FLOWHEADERHEAT EXCHANGERTHERMISTOR(DE)OUTDOOR UNIT

Piping Diagrams Si12-411A272 Appendix4MXS68BVMB9, 4MXS68CVMA4MXD80BVMA, 4MXS80BVMB9, 4MXS80CVMAREFRIGERANT FLOWHEADERHEAT EXCHANGERTHERMISTOR(DE)OUTDO

Si12-411A Wiring DiagramsAppendix 2732. Wiring Diagrams2.1 Indoor Units2.1.1 Wall Mounted TypeFTKE25/35BVM, FTK(X)E25/35BVMAFTK(X)S20CVMB(9), FTK(X)S2

Wiring Diagrams Si12-411A274 AppendixFTKD50/60/71BVM, FTK(X)D50/60/71BVMAFTK(X)S60/71BVMB, FTXS60/71BVMA(8)2.1.2 Duct Connected TypeCDKD25/35/50/60CVM

Si12-411A Wiring DiagramsAppendix 2752.1.3 Floor / Ceiling Suspended Dual TypeFLK(X)25/35/50/60AVMA, FLK(X)S25/35/50/60BVMB, FLXS25/35/50/60BVMA 2.1.4

Wiring Diagrams Si12-411A276 Appendix2.2 Outdoor Units2.2.1 Cooling only2MKD58BVM3MKD58/75BVM, 3MKD75BVMA ROOM AROOM BTO INDOOR UNIT~60Hz 220-230V~50H

Si12-411A Wiring DiagramsAppendix 2774MKD75/90BVM, 4MKD90BVMA3MKS50BVMB(8)ROOM AROOM BROOM CROOM DTO INDOOR UNIT33332222POWER SUPPLY~50Hz 220-240V~60H

Wiring Diagrams Si12-411A278 Appendix4MKS58BVMB(8), 4MKS75BVMB, 4MKS90BVMBROOM AROOM BROOM CROOM DTO INDOOR UNIT~50Hz 220-240V3333~60Hz 220-230V2222PO

Specifications Si12-411A18 Specifications1. Specifications1.1 Indoor Units - Cooling OnlyWall Mounted Type50Hz 220-230-240V / 60Hz 220-230VModel FTKE2

Si12-411A Wiring DiagramsAppendix 2792.2.2 Heat Pump3MXD68BVMA, 3MXS52BVMB(8), 3AMXS52BVMB4MXD80BVMA, 4MXS68/80BVMB9, 4MXS68CVMAROOM AROOM BROOM CTO I

Wiring Diagrams Si12-411A280 Appendix4MXS80CVMAROOM DROOM CROOM BROOM ATO INDOOR UNIT333322221111FIELD WIRINGV2~V5 : VARISTORMRC/W : MAGNETIC RE

Si12-411AIndex iIndexNumerics3 minutes stand-by...933-D airflow ...

Si12-411Aii IndexFF3 ...190fan control ...

Si12-411AIndex iiiposition sensor abnormality ...191power failure recovery function ...58, 61, 63, 64, 66power supp

Si12-411Aiv Index

Si12-411ADrawings & Flow Charts vDrawings & Flow ChartsAanti-icing function in other rooms ...205automatic air flow con

Si12-411Avi Drawings & Flow ChartsTtarget discharge pipe temperature control ...101thermistor or related abnormality (indoor unit) ...

Si12-411APrinted in Singapore 03/2005 AK COS

Si12-411Aii Table of Contents1. Introduction ... vii1.1 Safety

Si12-411A SpecificationsSpecifications 1950Hz 220-230-240V / 60Hz 220-230V Model FTKD71BVMRated Capacity 7.1kW ClassFront Panel Color WhiteAir Flow Ra

Specifications Si12-411A20 Specifications50Hz 220-230-240V / 60Hz 220-230VModel FTKE25BVMA FTKE35BVMARated Capacity 2.5kW Class 3.5kW ClassFront Panel

Si12-411A SpecificationsSpecifications 2150Hz 220-230-240V / 60Hz 220-230V Model FTKD71BVMARated Capacity 7.1kW ClassFront Panel Color WhiteAir Flow R

Specifications Si12-411A22 Specifications50Hz, 230VModel FTKS20CVMB(9) FTKS25CVMB(9)(8)Rated Capacity 2.0kW Class 2.5kW ClassFront Panel Color White W

Si12-411A SpecificationsSpecifications 2350Hz, 230VModel FTKS60BVMB FTKS71BVMBRated Capacity 6.0kW Class 7.1kW ClassFront Panel Color White WhiteAir F

Specifications Si12-411A24 SpecificationsDuct Connected Type50Hz 220-230-240V / 60Hz 220-230VNotes:1. The operating sound is based on the rear side su

Si12-411A SpecificationsSpecifications 2550Hz 220-230-240V / 60Hz 220-230VNotes:1. The operating sound is based on the rear side suction inlet and the

Specifications Si12-411A26 Specifications50Hz, 230VNotes:1. The operating sound is based on the rear side suction inlet and the external static pressu

Si12-411A SpecificationsSpecifications 27Floor / Ceiling Suspended Dual Type50Hz 220-230-240V / 60Hz 220-230VModel FLK25AVMA FLK35AVMARated Capacity 2

Specifications Si12-411A28 Specifications50Hz, 230VModel FLKS25BVMB FLKS35BVMBRated Capacity 2.5kW Class 3.5kW ClassFront Panel Color Almond White Alm

Si12-411ATable of Contents iii3.10 Defrost Control ...973.11 Low H

Si12-411A SpecificationsSpecifications 29Floor Standing Type50Hz, 230VModel FVKS25BVMB FVKS35BVMBRated Capacity 2.5kW Class 3.5kW ClassFront Panel Col

Specifications Si12-411A30 Specifications1.2 Outdoor Units - Cooling Only50Hz 220-230-240V / 60Hz 220-230VNotes:1. The data are based on the condition

Si12-411A SpecificationsSpecifications 3150Hz 220-230-240V / 60Hz 220-230VNotes:1. The data are based on the conditions shown in the table below.Model

Specifications Si12-411A32 Specifications50Hz 220-230-240V / 60Hz 220-230VNotes:1. The data are based on the conditions shown in the table below.Model

Si12-411A SpecificationsSpecifications 3350Hz 220-230-240V / 60Hz 220-230VNotes:1. The data are based on the conditions shown in the table below.Model

Specifications Si12-411A34 Specifications50Hz, 230VNotes:1. The data are based on the conditions shown in the table below.Model 3MKS50BVMB(8) 4MKS58BV

Si12-411A SpecificationsSpecifications 3550Hz, 230VNotes:1. The data are based on the conditions shown in the table below.Model 4MKS75BVMB 4MKS90BVMBC

Specifications Si12-411A36 Specifications1.3 Indoor Units - Heat PumpWall Mounted Type50Hz 220-230-240V / 60Hz 220-230VModelFTXE25BVMA FTXE35BVMACooli

Si12-411A SpecificationsSpecifications 3750Hz 220-230-240V / 60Hz 220-230VModelFTXD71BVMACooling HeatingRated Capacity 7.1kW ClassFront Panel Color Wh

Specifications Si12-411A38 Specifications50Hz 230VModelFTXS20CVMB(9) FTXS25CVMB(9)(8)Cooling Heating Cooling HeatingRated Capacity 2.5kW Class 2.5kW C

Si12-411Aiv Table of Contents5.16 Discharge Pipe Temperature Control...1905.17 Position Sensor Abnorma

Si12-411A SpecificationsSpecifications 3950Hz 230VModelFTXS60BVMB FTXS71BVMBCooling Heating Cooling HeatingRated Capacity 6.0kW Class 7.1kW ClassFront

Specifications Si12-411A40 Specifications230V, 50HzModelATXS20CVMB(9) ATXS25CVMB(9)Cooling Heating Cooling HeatingRated Capacity 2.0kW Class 2.5kW Cla

Si12-411A SpecificationsSpecifications 4150Hz 230V50Hz 230VModelFTXS25BVMA FTXS35BVMACooling Heating Cooling HeatingRated Capacity 2.5kW Class 3.5kW C

Specifications Si12-411A42 Specifications50Hz 230VModelFTXS71BVMA(8)Cooling HeatingRated Capacity 7.1kW ClassFront Panel Color WhiteAir Flow Ratesm³/m

Si12-411A SpecificationsSpecifications 43Duct Connected Type50Hz 220-230-240V / 60Hz 220-230VNotes: 1. The operating sound is based on the rear side s

Specifications Si12-411A44 Specifications50Hz 230VNotes:1. The operating sound is based on the rear side suction inlet and the external static pressur

Si12-411A SpecificationsSpecifications 4550Hz 230VModelCDXS25CVMA CDXS35CVMACooling Heating Cooling HeatingRated Capacity 2.5kW Class 3.5kW ClassFront

Specifications Si12-411A46 SpecificationsFloor / Ceiling Suspended Dual Type50Hz 220-230-240V / 60Hz 220-230VModelFLX25AVMA FLX35AVMACooling Heating C

Si12-411A SpecificationsSpecifications 4750Hz 230VModelFLXS25BVMB FLXS35BVMBCooling Heating Cooling HeatingRated Capacity 2.5kW Class 3.5kW ClassFront

Specifications Si12-411A48 Specifications50Hz 230VModelFLXS25BVMA FLXS35BVMACooling Heating Cooling HeatingRated Capacity 2.5kW Class 3.5kW ClassFront

Si12-411ATable of Contents vIndex ... iDrawings & Flow C

Si12-411A SpecificationsSpecifications 49Floor Standing Type50Hz 230VModelFVXS25BVMB FVXS35BVMBCooling Heating Cooling HeatingRated Capacity 2.5kW Cla

Specifications Si12-411A50 Specifications50Hz 230VModelFVXS35BVMA FVXS50BVMACooling Heating Cooling HeatingRated Capacity 3.5kW Class 5.0kW ClassFront

Si12-411A SpecificationsSpecifications 511.4 Outdoor Units - Heat Pump50Hz 220-240V / 60Hz 220-230VNotes:1. The data are based on the conditions shown

Specifications Si12-411A52 Specifications50Hz 230VNotes:1. The data are based on the conditions shown in the table below.Model3MXS52BVMB(8) 4MXS68BVMB

Si12-411A SpecificationsSpecifications 5350Hz 230VNotes:1. The data are based on the conditions shown in the table below.Model4MXS80BVMB9Cooling Heati

Specifications Si12-411A54 Specifications230V, 50HzNotes:1. The data are based on the conditions shows in the table below.Model3AMXS52BVMBCooling Heat

Si12-411A SpecificationsSpecifications 5550Hz 230VNotes:1. The data are based on the conditions shown in the table below.Model4MXS68CVMA 4MXS80CVMACoo

Specifications Si12-411A56 Specifications

Si12-411APrinted Circuit Board Connector Wiring Diagram 57Part 3Printed Circuit BoardConnector Wiring Diagram1. Printed Circuit Board Connector Wiring

Printed Circuit Board Connector Wiring Diagram Si12-411A58 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring Dia

Si12-411Avi Table of Contents

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 59PCBJP21JBJAJC5VGND12V(R2413)SW7PCB(1) Control

Printed Circuit Board Connector Wiring Diagram Si12-411A60 Printed Circuit Board Connector Wiring DiagramPCB Detail

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 611.2 Wall Mounted Type 50/60/71 ClassConnector

Printed Circuit Board Connector Wiring Diagram Si12-411A62 Printed Circuit Board Connector Wiring DiagramPCB Detail PCB(1): Control PCB (indoor unit)P

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 631.3 Duct Connected TypeConnectorsNote: Other

Printed Circuit Board Connector Wiring Diagram Si12-411A64 Printed Circuit Board Connector Wiring Diagram1.4 Floor / Ceiling Suspended Dual TypeConnec

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 65Power Supply PCB (PCB 2)Display PCB (PCB 3)Si

Printed Circuit Board Connector Wiring Diagram Si12-411A66 Printed Circuit Board Connector Wiring Diagram1.5 Floor Standing TypeConnectorsNote: Other

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 67Power Supply PCB (PCB 1)

Printed Circuit Board Connector Wiring Diagram Si12-411A68 Printed Circuit Board Connector Wiring DiagramControl PCB (PCB 2)Display PCB (PCB 3) Signal

Si12-411A Introductionvii1. Introduction1.1 Safety CautionsCautions and WarningsBe sure to read the following safety cautions before conducting repai

Si12-411A Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 691.6 Outdoor UnitsConnectorsNote: Other Design

Printed Circuit Board Connector Wiring Diagram Si12-411A70 Printed Circuit Board Connector Wiring Diagram

Si12-411AFunction and Control 71Part 4Function and Control1. Main Functions...

Main Functions Si12-411A72 Function and Control1. Main FunctionsNote: See the list of functions for the functions applicable to different models.1.1 F

Si12-411A Main FunctionsFunction and Control 73Inverter Features The inverter provides the following features:The regulating capacity can be changed

Main Functions Si12-411A74 Function and Control1.2 Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-SwingPower-airflow Dual FlapsThe large flaps

Si12-411A Main FunctionsFunction and Control 751.3 Fan Speed Control for Indoor UnitsControl Mode The airflow rate can be automatically controlled dep

Main Functions Si12-411A76 Function and Control1.4 Programme Dry FunctionProgramme dry function removes humidity while preventing the room temperature

Si12-411A Main FunctionsFunction and Control 771.5 Automatic OperationAutomatic Cooling / Heating Function (Heat Pump Only)When the AUTO mode is selec

Main Functions Si12-411A78 Function and Control1.6 Night Set ModeWhen the OFF timer is set, the Night Set circuit automatically activates.The Night Se

Introduction Si12-411Aviii1.1.2 Cautions Regarding Products after RepairCautionDo not repair the electrical components with wet hands.Working on the e

Si12-411A Main FunctionsFunction and Control 791.7 Intelligent EyeThis is the function that detects existence of humans in the room by a human motion

Main Functions Si12-411A80 Function and ControlSince the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes low and ca

Si12-411A Main FunctionsFunction and Control 811.8 Home Leave OperationOutline In order to respond to the customer's need for immediate heating a

Main Functions Si12-411A82 Function and Control1.9 Inverter Powerful OperationOutline In order to exploit the cooling and heating capacity to full ext

Si12-411A Main FunctionsFunction and Control 831.10 Other Functions1.10.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast that

Main Functions Si12-411A84 Function and Control1.10.8 Self-Diagnosis Digital DisplayThe microcomputer continuously monitors main operating conditions

Si12-411A Function of Main Structural PartsFunction and Control 852. Function of Main Structural Parts2.1 Main Structural Parts1. CompressorA Swing co

Function of Main Structural Parts Si12-411A86 Function and Control2.2 Function of Thermistor2.2.1 Heat Pump ModelA Outdoor Heat Exchanger Thermistor

Si12-411A Function of Main Structural PartsFunction and Control 87D Indoor Heat Exchanger Thermistor (DCN)1. An indoor heat exchanger thermistor is

Function of Main Structural Parts Si12-411A88 Function and Control2.2.2 Cooling Only ModelA Outdoor Heat Exchanger Thermistor (DCB)1. An outdoor hea