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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

Содержание Stylish Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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