Daikin Stylish Series User Manual Download

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Service manual

Split Stylish R32

CTXA15A(W)(S)(T)
CTXA15B(B)(S)(T)

FTXA20A(W)(S)(T)
FTXA20B(B)(S)(T)
FTXA25A(W)(S)(T)
FTXA25B(B)(S)(T)
FTXA35A(W)(S)(T)
FTXA35B(B)(S)(T)
FTXA42A(W)(S)(T)
FTXA42B(B)(S)(T)

FTXA50A(W)(S)(T)
FTXA50B(B)(S)(T)

RXA42A
RXA50A

RXA20A
RXA25A
RXA35A

RXA42B

RXA50B

Summary of Contents for Stylish Series

Page 1: ...ish R32 CTXA15A W S T CTXA15B B S T FTXA20A W S T FTXA20B B S T FTXA25A W S T FTXA25B B S T FTXA35A W S T FTXA35B B S T FTXA42A W S T FTXA42B B S T FTXA50A W S T FTXA50B B S T RXA42A RXA50A RXA20A RXA...

Page 2: ...f this publication to the best of its knowledge No express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and...

Page 3: ...02 Version log Version code Description Date ESIE18 03C See below February 2020 The following updates have been applied to the Service Manual Indoor unit models CTXA15B and FTXA20 50B added Outdoor un...

Page 4: ...ch 20 1 5 21 H6 00 Outdoor unit Malfunction of position detection sensor 21 1 5 22 H8 00 Outdoor unit Malfunction of compressor input system 22 1 5 23 H9 00 Outdoor unit Malfunction of outdoor air the...

Page 5: ...2 14 1 Checking procedures 109 2 14 2 Repair procedures 110 2 15 Streamer unit 112 2 15 1 Checking procedures 112 2 15 2 Repair procedures 112 2 16 Swing flap motor 113 2 16 1 Main swing flap motor 1...

Page 6: ...nit 151 5 3 2 Piping diagram Outdoor unit 152 5 4 Component overview 155 5 4 1 Component overview Indoor unit 155 5 4 2 Component overview Outdoor unit 157 5 5 Field information report 160 5 6 Service...

Page 7: ...reset the error 1 3 To reset the error code via outdoor unit Prerequisite Problem is solved 1 Perform a power reset to reset the error code 1 4 To perform a test run Prerequisite Power supply MUST be...

Page 8: ...ecommended to perform the checks in the listed order 1 Check for improper combination of the indoor unit and the outdoor unit See the combination table in the Databook for more information 2 Perform a...

Page 9: ...ndoor unit is blocked 2 Clean the air filter See 4 Maintenance 4142 Possible cause Faulty or dirty air filter 3 Clean the indoor unit heat exchanger See 4 Maintenance 4142 Possible cause Dirty indoor...

Page 10: ...operating Manual reset via user interface To solve the error code INFORMATION It is recommended to perform the checks in the listed order 1 Perform a check of the streamer unit See 2 15 Streamer unit...

Page 11: ...e cause Faulty indoor unit PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 1 5 7 CC 00 Humidity sensor abnormality Trigger Effe...

Page 12: ...Unit will stop operating Manual reset via user interface Power reset via outdoor unit To solve the error code INFORMATION It is recommended to perform the checks in the listed order 1 Perform a check...

Page 13: ...in the refrigerant circuit 2 Perform a check of the high pressure switch See 2 5 High pressure switch 463 Possible cause Faulty high pressure switch 3 Perform a check of the main PCB See 2 11 Main PCB...

Page 14: ...or unit fan motor 4 Perform a check of the compressor See 2 2 Compressor 445 Possible cause Faulty compressor 5 Perform a check of the expansion valve See 2 3 Expansion valve 454 Possible cause Faulty...

Page 15: ...rigerant circuit is clogged See 3 2 Refrigerant circuit 4133 Possible cause Clogged refrigerant circuit 4 Check if the refrigerant circuit is correctly charged See 3 2 Refrigerant circuit 4133 Possibl...

Page 16: ...of the inverter PCB See 2 10 Inverter PCB 479 Possible cause Faulty inverter PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 1...

Page 17: ...de INFORMATION It is recommended to perform the checks in the listed order 1 Perform a check of the 4 way valve See 2 1 4 way valve 439 Possible cause Faulty 4 way valve 2 Perform a check of the main...

Page 18: ...presence of non condensables and or humidity in the refrigerant circuit See 3 2 Refrigerant circuit 4133 Possible cause Non condensables and or humidity in the refrigerant circuit 4 Check if the refr...

Page 19: ...s correctly charged See 3 2 Refrigerant circuit 4133 Possible cause Refrigerant overcharge 7 Check for the presence of non condensables and or humidity in the refrigerant circuit See 3 2 Refrigerant c...

Page 20: ...Compressor voltage DC is out of range before start up Unit will stop operating Manual reset via user interface To solve the error code INFORMATION It is recommended to perform the checks in the liste...

Page 21: ...tion of position detection sensor Trigger Effect Reset Compressor fails to start within 15 seconds after the compressor run command signal is sent Unit will NOT stop operating Automatic reset after a...

Page 22: ...tact the helpdesk 1 5 22 H8 00 Outdoor unit Malfunction of compressor input system Trigger Effect Reset DC voltage or current sensor abnormality based on the compressor running frequency and the input...

Page 23: ...d and the problem is still present contact the helpdesk 1 5 24 J3 00 Outdoor unit Malfunction of discharge pipe thermistor Trigger Effect Reset Discharge pipe thermistor input is out of range Unit wil...

Page 24: ...r Effect Reset Switch box temperature is too high Unit will stop operating Manual reset via remote controller To solve the error code INFORMATION It is recommended to perform the checks in the listed...

Page 25: ...op Short circuit 3 Perform a check of the inverter PCB See 2 10 Inverter PCB 479 Possible cause Faulty inverter PCB 4 Perform a check of the main PCB See 2 11 Main PCB 481 Possible cause Faulty main P...

Page 26: ...ressor See 2 2 Compressor 445 Possible cause Faulty compressor 7 Check if the power supply is conform with the regulations See 3 1 Electrical circuit 4131 Possible cause Faulty or disturbance of the p...

Page 27: ...rigerant circuit is correctly charged See 3 2 Refrigerant circuit 4133 Possible cause Refrigerant shortage 5 Check for the presence of non condensables and or humidity in the refrigerant circuit See 3...

Page 28: ...check of the main PCB See 2 11 Main PCB 481 Possible cause Faulty main PCB 5 Perform a check of the inverter PCB See 2 10 Inverter PCB 479 Possible cause Faulty inverter PCB 6 Wait until the compresso...

Page 29: ...remote controller Trigger Effect Reset Communication failure between indoor unit and user interface Unit will stop operating Automatic reset To solve the error code INFORMATION It is recommended to pe...

Page 30: ...tabook for more information 2 Perform a check of the power supply connections wiring between the outdoor unit and the indoor unit See 3 1 Electrical circuit 4131 Possible cause Faulty wiring between t...

Page 31: ...ling operation cannot be used when the outdoor temperature is below 10 C DB When the operation lamp blinks there may be an error code activating the protection device Diagnose with remote controller i...

Page 32: ...Field piping is defective is there a refrigerant leakage Is there capacity loss over the condensor saturation pressure or sound because of air mixed in to the circuit Incorrect size of connection wir...

Page 33: ...n where needed If the mounting wall is too thin you must use cushion material or rubber or change the installation place Refrigerant piping is too short is the length within specified range Due to bad...

Page 34: ...air enter the refrigerant system Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Is the refrigerant overcharged Conduct refrigerant collection and vacuum dryin...

Page 35: ...ure difference before and after expansion valve capillary Check if the main valve unit of expansion valve operates by noise vibration Is the check valve clogged Check if there is a temperature differe...

Page 36: ...nsulation of the electric system Check the thermistor Connection witch PCB Output Check PCB s if green led on the control PCB is not blinking then the microprocessor is not working if the green led on...

Page 37: ...ater in the system Check the fan motor Check the magnetic switch Check the overcurrent relay Check the four way valve coil Is there a short circuit Is the four way valve coil broken Check the outdoor...

Page 38: ...eakage or blockage of the humidification hose Is the length of the humidification hose correct within specified length Is setting correct for the humidification hose length Check the outdoor temperatu...

Page 39: ...il see 2 1 2 Repair procedures 442 To perform an electrical check of the 4 way valve Prerequisite First perform a mechanical check of the 4 way valve see 2 1 1 Checking procedures 439 1 Unplug the 4 w...

Page 40: ...Portal for the temperature range of the operation modes 9 Connect the 4 way valve connector to the appropriate PCB 10 Turn ON the power using the respective circuit breaker 11 With the unit operating...

Page 41: ...d activate Cooling operation via the user interface 6 Check with a contact thermometer or by touching if the flow through the 4 way valve corresponds with the flow shown in the flow diagram See 5 3 Pi...

Page 42: ...Checking procedures 4133 2 1 2 Repair procedures To remove the 4 way valve coil Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prereq...

Page 43: ...5 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 6 Heat the ends of the expansion valve pipes using an oxygen acetylene torch and remove the expansion valve...

Page 44: ...gerant circuit see 3 2 2 Repair procedures 4137 To install the 4 way valve coil 1 Install the 4 way valve coil on the 4 way valve body c a b a Screw b 4 way valve coil c 4 way valve body 2 Install and...

Page 45: ...g the respective circuit breaker 3 Start the unit operation via the user interface 4 Listen to the compressor when it tries to operate Judge if a mechanical lock is present INFORMATION If a mechanical...

Page 46: ...ctrical check of the compressor see 2 2 1 Checking procedures 445 No Replace the compressor see 2 2 2 Repair procedures 450 To perform an electrical check of the compressor 1 First perform a mechanica...

Page 47: ...ow correct connection during installation a a a a Faston connector 4 Measure the resistance between the compressor motor windings U V V W and U W Result All measurements MUST be approximately the same...

Page 48: ...th the next step No Replace the inverter PCB see 2 10 Inverter PCB 479 10 Measure the current in each phase U V V W and U W All measurements MUST be the same Compressor motor winding current measureme...

Page 49: ...of the Faston connectors on the compressor wire terminals to allow correct connection during installation a a a a Faston connector 4 Set the Megger voltage to 500 V DC or 1000 V DC 5 Measure the insu...

Page 50: ...emove the required plate work see 2 13 Plate work 499 Prerequisite Remove the compressor insulation Prerequisite Recuperate the refrigerant from the refrigerant circuit see 3 2 2 Repair procedures 413...

Page 51: ...03C 2020 02 a a a a Faston connector INFORMATION Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation 4 Cut the compressor pipes...

Page 52: ...and keep them for re use 8 To install the compressor see 2 2 2 Repair procedures 450 To install the compressor 1 Check the state of the dampers Replace if worn 2 Install the 3 dampers in the correct...

Page 53: ...e compressor pipes and solder the compressor pipes to the refrigerant pipes a a a Compressor pipe CAUTION Overheating the compressor pipes and the oil inside the compressor pipes will damage or destro...

Page 54: ...a mechanical check of the expansion valve Prerequisite Power OFF the unit for 3 minutes Then turn ON the unit and listen to the expansion valve assembly If the expansion valve does NOT make a latchin...

Page 55: ...nsion valve coil from the appropriate PCB and measure the resistance of all windings between the pins of each phase wire and the common wire using a multi meter All measurements MUST be approximately...

Page 56: ...pplied with 12 V DC from the PCB You will need a good multimeter where its range is set to about 20 V DC and during opening or closing sequence you may be able to measure the supply voltage for a shor...

Page 57: ...removal a b a Expansion valve motor b Expansion valve motor harness INFORMATION The expansion valve and motor can have a different configuration layout 3 Cut all tie straps that fix the expansion val...

Page 58: ...the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 6 Heat the ends of the expansion valve pipes using an oxygen acetylene torch and remove the expansion valve pipe ends 7 Stop the...

Page 59: ...Expansion valve body a b a Expansion valve pipe b Expansion valve body INFORMATION The expansion valve and motor can have a different configuration layout 5 Reinstall the putty 6 To install the expans...

Page 60: ...CB do NOT apply force as this may damage the connector or connector pins of the PCB 4 Fix the expansion valve motor harness using new tie straps 5 Install the insulation cap on the expansion valve mot...

Page 61: ...aps 5 Install the insulation cap on the expansion valve motor if applicable Is the problem solved Action Yes No further actions required No Return to 2 3 1 Checking procedures 454 of the expansion val...

Page 62: ...rocedures To remove the front panel motor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work s...

Page 63: ...tch 2 5 1 Checking procedures To perform an electrical check of the high pressure switch Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breake...

Page 64: ...he resistance between the Faston connections of the high pressure switch The switch MUST be open 9 Lower the pressure of the nitrogen in the refrigerant circuit just below reset pressure of the high p...

Page 65: ...nd of the high pressure switch pipe using an oxygen acetylene torch and remove the high pressure switch pipe end 7 Stop the nitrogen supply when the piping has cooled down 8 To install the high pressu...

Page 66: ...umidity sensor 2 6 1 Checking procedures 1 As there is no specific check procedure for this component first perform a check of the indoor unit PCB to check if the humidity sensor needs to be replaced...

Page 67: ...mbly on the indoor unit a a Humidity sensor PCB assembly 2 Route the humidity sensor harness inside the switch box along the harness retainers 3 Connect the humidity sensor harness to the appropriate...

Page 68: ...irst perform a mechanical check of the DC fan motor assembly see 2 7 1 Checking procedures 468 2 Measure the resistance between the pins 1 2 1 3 and 2 3 of the DC fan motor connector All measurements...

Page 69: ...the indoor unit PCB 5 Remove the screw and remove the switch box from the indoor unit 6 Click the indoor unit fan motor cover out of the indoor unit a a Indoor unit fan motor cover 7 Remove the rubber...

Page 70: ...f Switch box 5 Route the connectors of the indoor unit fan motor and front wiring inside the switch box and connect them to the indoor unit PCB 6 Install and tighten the screw to secure the switch bo...

Page 71: ...between the black and white wires on the PCB The measured voltage MUST be 16 V DC a b a Black wire b White wire Is the measured voltage on the indoor unit PCB correct Action Yes Return to 2 8 1 Checki...

Page 72: ...2 Is the measured voltage on the indoor unit PCB correct Action Yes Return to 2 8 1 Checking procedures 471 of the indoor unit PCB and continue with the next procedure No Replace the indoor unit PCB s...

Page 73: ...No Replace the indoor unit PCB see 2 8 2 Repair procedures 474 To check the wiring of the indoor unit PCB Prerequisite First perform all earlier checks of the indoor unit PCB see 2 8 1 Checking proced...

Page 74: ...procedure 2 8 2 Repair procedures To correct the wiring from the indoor unit power supply terminal to the indoor unit PCB Prerequisite Stop the unit operation via the user interface Prerequisite Turn...

Page 75: ...99 1 Disconnect all connectors from the indoor unit PCB 2 Carefully pull the indoor unit PCB from the PCB supports a b b b b c b b b b a Indoor unit power PCB b PCB support c Indoor unit control PCB 3...

Page 76: ...a Indoor unit power PCB b PCB support c Indoor unit control PCB 2 Connect all connectors to the indoor unit PCB INFORMATION Use the wiring diagram and connection diagram for correct installation of th...

Page 77: ...isite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 2 13 Plate work 499 1 Remove the fuse from the PCB a a Fuse 2 To install a fuse on the indoor unit PCB see...

Page 78: ...e the intelligent thermal sensor see 2 9 2 Repair procedures 478 2 9 2 Repair procedures To remove the intelligent thermal sensor Prerequisite Stop the unit operation via the user interface Prerequisi...

Page 79: ...oting of the specific error and continue with the next procedure 2 10 Inverter PCB 2 10 1 Checking procedures As the inverter PCB is integrated in the main PCB of the unit see 2 11 Main PCB 481 for th...

Page 80: ...sure that the Faston connectors are disconnected from the compressor wire terminals and connected to the Inverter Analyzer before starting the power transistor check operation If NOT power transistor...

Page 81: ...es No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 2 10 2 Repair procedures As the inverter PCB is integrated in the main PCB of...

Page 82: ...CB and continue with the next procedure No Continue with the next step 3 Check the power supply to the unit see 3 1 1 Checking procedures 4131 Does the unit receive power Action Yes Correct the wiring...

Page 83: ...he main PCB and continue with the next procedure No Replace the main PCB see 2 11 2 Repair procedures 485 To check if the correct spare part is installed Prerequisite First perform all earlier main PC...

Page 84: ...er interface Prerequisite Turn OFF the respective circuit breaker 1 Check that all wires are properly connected and that all connectors are fully plugged in 2 Check that no connectors or wires are dam...

Page 85: ...uired No Return to the troubleshooting of the specific error and continue with the next procedure 2 11 2 Repair procedures To correct the wiring from the main power supply terminal to the main PCB Pre...

Page 86: ...breaker Prerequisite Remove the required plate work see 2 13 Plate work 499 1 Disconnect all connectors from the main PCB Class 20 35 a a a a a a a Screw Class 42 50 a a a a a a a Screw For all models...

Page 87: ...connectors to the main PCB INFORMATION Use the wiring diagram and connection diagram for correct installation of the connectors see 5 2 Wiring diagram 4145 Is the problem solved Action Yes No further...

Page 88: ...isite Remove the required plate work see 2 13 Plate work 499 1 Remove the fuse from the PCB Class 20 35 a a a a Fuse Class 42 50 a a Fuse For all models 2 To install a fuse on the main PCB see 2 11 2...

Page 89: ...d Action Yes No further actions required No Return to 2 11 1 Checking procedures 481 of the PCB and continue with the next procedure 2 12 Outdoor unit fan motor 2 12 1 RXA20 35A3 5 units Checking proc...

Page 90: ...Check that it rotates smoothly 2 Check the friction of the DC fan motor shaft bearing Is the DC fan motor shaft friction normal Action Yes Perform an electrical check of the DC fan motor assembly see...

Page 91: ...ure the insulation resistance for the motor terminals Measurements between each phase and ground must be 1 M Are the measured resistance values correct Action Yes Perform a check of the main PCB see 2...

Page 92: ...crews that fix the DC fan motor assembly 8 Remove the DC fan motor assembly from the unit 9 To install the DC fan motor assembly see Repair procedures 491 To install the DC fan motor assembly 1 Instal...

Page 93: ...to perform the checks in the listed order To perform a mechanical check of the propeller fan blade assembly Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respec...

Page 94: ...rform a mechanical check of the DC fan motor assembly see Checking procedures 493 2 Turn ON the power of the unit 3 Activate Cooling or Heating operation via the user interface 4 Check the functioning...

Page 95: ...edures 497 6 Turn ON the power of the unit 7 With the DC fan motor connector S70 disconnected from the inverter PCB measure the voltage on the connector pins 4 7 fan motor power supply on the inverter...

Page 96: ...edures 497 6 Turn ON the power of the unit 7 With the DC fan motor connector S70 disconnected from the inverter PCB measure the voltage on the connector pins 4 7 fan motor power supply on the inverter...

Page 97: ...d Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure Repair procedures To remove the propeller fan blade assembly Prereq...

Page 98: ...the DC fan motor assembly see Repair procedures 497 To install the DC fan motor assembly 1 Install the DC fan motor assembly in the correct location 2 Fix the DC fan motor assembly to the unit by tigh...

Page 99: ...ler fan blade assembly Is the problem solved Action Yes No further actions required No Return to Checking procedures 493 of the outdoor unit fan motor and continue with the next procedure 2 13 Plate w...

Page 100: ...plate a b a a a a a a Screw b Top plate 2 Remove the top plate To remove the front plate INFORMATION This procedure is just an example and may differ on some details for your actual unit Prerequisite...

Page 101: ...e and may differ on some details for your actual unit Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required...

Page 102: ...plit Stylish R32 ESIE18 03C 2020 02 f a d c b e a Electrical power supply wiring b Wire terminals c Screws d Wire clamp e Screws f Right side plate assembly 4 Remove the screws that fix the wire clamp...

Page 103: ...remove the switch box from the outdoor unit 9 To install the switch box see 2 13 Plate work 499 To install the switch box INFORMATION This procedure is just an example and may differ on some details...

Page 104: ...t the electrical power supply wiring to the wire terminals 4 Install the wire clamp and fix it using the screws 5 Connect all connectors to the main PCB INFORMATION Use the wiring diagram and connecti...

Page 105: ...le tie b Switch box 7 Install the insulation on the upper side of the switch box a b a Insulation b Main PCB 2 13 2 Indoor unit To open the front panel 1 Hold the front panel on both sides and open it...

Page 106: ...nt panel c Fixing tab d Support INFORMATION If you CANNOT find the user interface or you use another optional controller Pull the front panel carefully up by hand as shown in the following figure To c...

Page 107: ...ght to disconnect the shaft from the shaft slot on the right side a c b a Arm b Shaft c Shaft slot 4 Disconnect the front panel shaft from the shaft slot on the left side a c b a Arm b Shaft slot c Sh...

Page 108: ...ctor 4 Remove the flap by pushing it to the left side and towards you 5 Remove the 2 screw covers using a long flat plate such as a ruler wrapped in a cloth and remove 2 screws c d b a a Connector b W...

Page 109: ...ox cover by pulling it to the front 4 Remove the electrical wiring box cover from the 2 rear hooks 1 2 b a c c a Screw b Electrical wiring box c Rear hook 5 To re install the cover first attach the el...

Page 110: ...14 2 Repair procedures 4110 6 Measure the continuity of the reactor Is the continuity measurement correct Action Yes Return to the troubleshooting of the specific error and continue with the next ste...

Page 111: ...r 6 To install the reactor see 2 14 2 Repair procedures 4110 To install the reactor 1 Install the reactor in the correct location and install the clip 2 Connect the reactor connector 3 Install the cov...

Page 112: ...lved Action Yes No further actions required No Replace the streamer unit see 2 15 2 Repair procedures 4112 2 15 2 Repair procedures To remove the streamer unit Prerequisite Stop the unit operation via...

Page 113: ...s 3 Connect the streamer unit connector to the indoor unit PCB Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the...

Page 114: ...ubleshooting of the specific error and continue with the next procedure No Replace the swing flap motor see Repair procedures 4114 Repair procedures INFORMATION To replace the motor the complete gearc...

Page 115: ...epair procedures 4114 To install the swing flap motor gearcase assembly 1 Connect the swing flap motor harness to the swing flap motor connector 2 Install the swing flap motor gearcase assembly on the...

Page 116: ...sured resistance 1 2 235 1 3 1 4 1 5 2 3 470 2 4 2 5 3 4 3 5 4 5 Swing flap motor resistance measurements are correct Action Yes Return to the troubleshooting of the specific error and continue with t...

Page 117: ...rcase assembly 5 Disconnect the rocker arm from the swing raster 6 Remove the swing flap motor gear case assembly from the indoor unit 7 Disconnect the harness from the swing flap motor 8 Disconnect t...

Page 118: ...nector 6 Install the right side fan guard on the indoor unit by clicking it on 7 Install the secondary swing flap in the indoor unit by clicking it on 8 Install the main swing flap in the indoor unit...

Page 119: ...rn to the troubleshooting of the specific error and continue with the next procedure No Replace the swing raster motor see 2 17 2 Repair procedures 4119 2 17 2 Repair procedures INFORMATION To replace...

Page 120: ...procedures 4119 No Correctly install the thermistor see Repair procedures 4122 To perform an electrical check of the specific thermistor Prerequisite First perform a mechanical check of the thermistor...

Page 121: ...91 6 65 6 41 6 65 6 41 6 18 5 95 5 74 5 14 0 65 84 30 16 10 60 4 87 1 2 3 4 5 6 7 8 9 62 54 59 43 56 49 53 71 51 09 48 61 46 26 44 05 41 95 31 32 33 34 35 36 37 38 39 15 43 14 79 14 18 13 59 13 04 12...

Page 122: ...face display replace the applicable PCB Does the measured resistance of the thermistor match with the temperature determined resistance Action Yes Thermistor is OK Return to the troubleshooting of the...

Page 123: ...stors are wired to the same connector See connector and pin information of the thermistors at the start of the electrical check procedure and 5 2 Wiring diagram 4145 ALWAYS replace the complete set of...

Page 124: ...rs are wired to the same connector See connector and pin information of the thermistors at the start of the electrical check procedure and 5 2 Wiring diagram 4145 ALWAYS replace the complete set of th...

Page 125: ...rcuit breaker Prerequisite Remove the required plate work see 2 13 Plate work 499 1 Locate the thermistor and remove the insulation if needed Check that the thermistor is correctly installed and that...

Page 126: ...4 75 76 77 78 79 3 32 3 21 3 11 3 01 2 91 2 82 2 72 2 64 2 55 10 111 99 20 25 01 50 7 18 80 2 47 9 8 7 6 5 4 3 2 1 106 03 100 41 95 14 90 17 85 49 81 08 76 93 73 01 69 32 21 22 23 24 25 26 27 28 29 23...

Page 127: ...rature for the corresponding thermistor is NOT correct on the user interface display replace the applicable PCB Does the measured resistance of the thermistor match with the temperature determined res...

Page 128: ...53 54 55 56 57 58 59 6 91 6 65 6 41 6 65 6 41 6 18 5 95 5 74 5 14 0 65 84 30 16 10 60 4 87 1 2 3 4 5 6 7 8 9 62 54 59 43 56 49 53 71 51 09 48 61 46 26 44 05 41 95 31 32 33 34 35 36 37 38 39 15 43 14...

Page 129: ...res 2 19 Wifi control PCB 2 19 1 Checking procedures 1 As there is no specific check procedure for this component first perform a check of the indoor unit PCB to check if the wifi control PCB needs to...

Page 130: ...ly on the indoor unit a a Wifi control PCB assembly 2 Route the wifi control PCB harness inside the switch box along the harness retainers 3 Connect the wifi control PCB harness to the appropriate con...

Page 131: ...rminal X1M The voltage MUST be 230 V AC 10 5 Unbalance between the phases MUST NOT exceed 2 Is the measured voltage power supply correct Action Yes Return to the troubleshooting of the specific error...

Page 132: ...e problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 1 2 Repair procedures To adjust the power supply 1...

Page 133: ...f the specific error and continue with the next procedure 3 2 Refrigerant circuit 3 2 1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order To check if the stop...

Page 134: ...p occurs INFORMATION Focus on positions with a potential risk for clogging such as Filters Valves Brazing points Temperature drop found Action Yes Replace the clogged part see 3 2 2 Repair procedures...

Page 135: ...arge Degree of overcharge To maintain high pressure frequency decreases under the capacity control Low pressure drops due to closed outdoor unit electronic expansion valve Hot gas bypass is activated...

Page 136: ...ue to compressor capacity decreasing Operating frequency comes to the lowest level Heating Frequency Low pressure High pressure Proper amount Higher degree of shortage Degree of refrigerant shortage T...

Page 137: ...rocedures 4137 No Return to the troubleshooting of the specific error and continue with the next procedure To perform a pressure test of the refrigerant circuit 1 Perform a pressure test in line with...

Page 138: ...onent that needs to be repaired See also Repair information 4139 for more details Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error an...

Page 139: ...tools according to the refrigerant and unit type R32 can be charged in gas phase Make sure to use a digital scale no charging cylinder Execute correct vacuum drying procedure after repair 0 1 MPa 760...

Page 140: ...emoved during repair Pipe expansion flare making Remove any burrs on the cut surface using the correct tool such as reamer or scraper note that excessive deburring can thin the pipe walls and cause cr...

Page 141: ...ock the airflow 1 Check for the presence of objects near the indoor unit that may block the airflow Is an object found that may block the airflow Action Yes Remove the object see 3 3 2 Repair procedur...

Page 142: ...bleshooting of the specific error and continue with the next procedure 4 2 To clean the indoor unit heat exchanger 1 Straighten the hair fins 2 Clear the indoor unit heat exchanger from dust leaves us...

Page 143: ...5 minutes INFORMATION If the dust does NOT come off easily wash the air filters with a neutral detergent diluted in lukewarm water Dry the air filters in the shade Be sure to remove the titanium apati...

Page 144: ...g mode 5 1 1 Detailed information setting mode Indoor unit See the installer reference guide on business portal for more information 5 1 2 Detailed information setting mode Outdoor unit See the instal...

Page 145: ...nslation Wiring diagram Wiring diagram Indoor unit Indoor unit Outdoor unit Outdoor unit Wi fi control circuit Wi fi control circuit Streamer unit Streamer unit Streamer part Streamer part Earth plate...

Page 146: ...uit BS Button switch C Capacitor CN S FG Connector E1 Heat exchanger F1U Fuse H P Pilot lamp H1O Buzzer IES Motion detection sensor K1R Magnetic relay M1F Motor indoor fan M1S M2S M3S Motor swing flap...

Page 147: ...top plate The abbreviations used are listed below Class 20 35 1 Wiring diagram English Translation Wiring diagram Wiring diagram Indoor Indoor Outdoor Outdoor Condenser Condenser Discharge Discharge...

Page 148: ...PM Intelligent power module L Live M1C Compressor motor M1F Fan motor MR Magnetic relay N Neutral PAM Pulse amplitude modulation PCB Printed circuit board PS Switching power supply Q1L Overload protec...

Page 149: ...oor Condenser Condenser Discharge Discharge 2 Notes English Translation Connection X1M Main terminal Field supply PCB Protective earth Earth Field wire NOTES BLK Black WHT White BRN Brown RED Red GRN...

Page 150: ...tral N 4 N 5 Number of passes PAM Pulse amplitude modulation PCB Printed circuit board PS Switching power supply Q1L Overload protector R1T R2T R3T Thermistor S1PH High pressure switch S2 S90 Terminal...

Page 151: ...diagrams shown in this manual may be incorrect due to changes updates to the unit Correct diagrams are supplied with the unit and can also be found in the technical data book a b c d R1T M1F 9 5 e e e...

Page 152: ...ction c Stop valve liquid d Stop valve with service port gas e Muffler with filter f Heat exchanger g Accumulator h Muffler M1C Compressor M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchan...

Page 153: ...Stop valve gas e Muffler f Gas receiver g Filter h Muffler with filter i Heat exchanger j Accumulator M1C Compressor M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchanger R3T Thermistor co...

Page 154: ...Stop valve gas e Muffler f Liquid receiver g Filter h Muffler with filter i Heat exchanger j Accumulator M1C Compressor M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchanger R3T Thermistor...

Page 155: ...20 35A RXA42 50B Split Stylish R32 ESIE18 03C 2020 02 5 4 Component overview 5 4 1 Component overview Indoor unit a c d b f e g h a Heat exchanger b Front panel motor C Heat exchanger thermistor R1T e...

Page 156: ...S T RXA42 50A RXA20 35A RXA42 50B Split Stylish R32 ESIE18 03C 2020 02 i j k l m n o p i Streamer unit j Indoor unit PCB k Switch box l Wifi control PCB m Humidity sensor PCB including room thermistor...

Page 157: ...iew Outdoor unit RXA20 35A i j k l m p o a b c d e f g h n a Air thermistor R1T b Heat exchanger c Expansion valve d Heat exchanger thermistor R2T e Muffler with filter f Stop valve with service port...

Page 158: ...r a b c e f h i j d g d a Air thermistor R1T b Heat exchanger c Expansion valve d Muffler e Heat exchanger thermistor R2T f Muffler with filter g Gas receiver h Stop valve with service port gas i Stop...

Page 159: ...b c f g j c e d c h i a Air thermistor R1T b Heat exchanger c Muffler d Heat exchanger thermistor R2T e Liquid receiver f Stop valve with service port gas g Stop valve liquid h Muffler with filter i D...

Page 160: ...5 Technical data Service manual 160 C F TXA15 50A W S T C F TXA15 50B B S T RXA42 50A RXA20 35A RXA42 50B Split Stylish R32 ESIE18 03C 2020 02 5 5 Field information report See next page...

Page 161: ...tion is required Please fill out the following form before contacting your distributor FIELD INFORMATION REPORT Key person information Name Company name Your contact details Phone number E mail addres...

Page 162: ...CB A1P Software version hydro PCB A5P Software version user interface Software version outdoor PCB Minimum water volume Maximum water volume Brine composition and mixture Brine freeze up temperature S...

Page 163: ...of the available service tools check the Business Portal http www mydaikin eu 2 Go to the tab After sales support on the left navigation pane and select Technical support 3 Click the button Service t...

Page 164: ...target set temperature in heating operation INFORMATION When there is a big difference between the indoor room temperature and the set temperature in heating mode adjust the target set temperature fie...

Page 165: ...to switch OFF auto restart For example after a long power failure generators have to start up As there is limited energy and the air conditioners do NOT have priority it is recommended to switch OFF...

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Daikin Stylish Series, Service Manual

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Summary of Contents for Stylish Series

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