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Safety precautions

Service manual

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ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71

Split Comfora R32

ESIE18-01E – 2023.01

WARNING

▪

In order to prevent oxygen deficiency and R32 combustion, keep the room well-
ventilated for a healthy work environment. Do NOT work in a confined space. If a
refrigerant leak is detected in a confined room or an inadequately ventilated
location, do NOT start the work until the area has been ventilated appropriately.

▪

If  the  work  area  is  NOT  located  in  the  open  air,  make  sure  the  work  area  is
adequately ventilated before breaking into the system or conducting any brazing.
The  ventilation  MUST  continue  to  operate  during  the  period  that  the  work  is
carried  out  to  prevent  accumulation  of  refrigerant  in  the  work  area.  The
ventilation  should  safely  disperse  any  released  refrigerant  and  preferably
ventilate to the open air.

WARNING

Ensure that no external live wiring is exposed while charging, recovering or purging
the system. Sparks created when live wiring is short-circuited might ignite the
refrigerant if it is leaked into the room while charging, recovering or purging the
system.

WARNING

Ensure that the unit is properly earthed prior to conducting maintenance or service
or charging the system with refrigerant. Do NOT earth the unit to a utility pipe, surge
absorber, or telephone earth. Incomplete earthing may cause electrical shock.

WARNING

▪

ONLY use copper wires.

▪

Make sure the field wiring complies with the applicable legislation.

▪

All field wiring MUST be performed in accordance with the wiring diagram
supplied with the product.

▪

NEVER squeeze bundled cables and make sure they do NOT come in contact with
the piping and sharp edges. Make sure no external pressure is applied to the
terminal connections.

▪

Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surge
absorber, or telephone earth. Incomplete earth may cause electrical shock.

▪

Make sure to use a dedicated power circuit. NEVER use a power supply shared by
another appliance.

▪

Make sure to install the required fuses or circuit breakers.

▪

Make sure to install an earth leakage protector. Failure to do so may cause
electrical shock or fire.

▪

When installing the earth leakage protector, make sure it is compatible with the
inverter (resistant to high frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.

WARNING

Make sure the markings on the unit remain visible and legible after inspection or
repair work. Markings and signs that are illegible shall be corrected.

WARNING

▪

After finishing the electrical work, confirm that each electrical component and
terminal inside the electrical components box is connected securely.

▪

Make sure all covers are closed before starting up the unit.

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Содержание FTXP20-71L

Страница 1: ...Service manual Split Comfora R32 FTXP20 71L FTXP20 35M 9 FTXP50 71M FTXP20 71N ATXP20 35L ATXP20 35M ATXP20 35N RXP20 71L RXP20 71M RXP20 71N ARXP20 35L ARXP20 35M ARXP20 35N...

Страница 2: ...ion 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 services presen...

Страница 3: ...Service Manual Indoor unit models FTXP20 35M9 added Technical data Wiring diagram Wiring diagrams for new models added Version code Description Date ESIE18 01D See below February 2022 The following u...

Страница 4: ...17 H3 00 Outdoor unit Malfunction of high pressure switch 27 2 5 18 H6 00 Outdoor unit Malfunction of position detection sensor 28 2 5 19 H8 00 Outdoor unit Malfunction of compressor input system 29 2...

Страница 5: ...es 138 3 14 2 Repair procedures 139 4 Third party components 142 4 1 Electrical circuit 142 4 1 1 Checking procedures 142 4 1 2 Repair procedures 143 4 2 Refrigerant circuit 144 4 2 1 Checking procedu...

Страница 6: ...r shutting down the system in case of an emergency Name and address of fire department police and hospital Name address and day and night telephone numbers for obtaining service In Europe EN378 provid...

Страница 7: ...ls of main circuit capacitors or electrical components before servicing The voltage MUST be less than 50 V DC before you can touch electrical components For the location of the terminals see the wirin...

Страница 8: ...like water oil or other substances Protect bystanders from injury and property from possible damage cause by service works WARNING If any work is to be conducted on the refrigerating equipment or any...

Страница 9: ...ARNING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead...

Страница 10: ...unit to a utility pipe surge absorber or telephone earth Incomplete earthing may cause electrical shock WARNING ONLY use copper wires Make sure the field wiring complies with the applicable legislati...

Страница 11: ...in case analysis is required prior to re use of recovered refrigerant It is essential that electrical power is available before the task is commenced Become familiar with the equipment and its operat...

Страница 12: ...ents are sealed to prevent ignition in the event of a refrigerant release Consult manufacturer if in doubt Do NOT overfill the refrigerant cylinder confirm with the supplier of the refrigerant cylinde...

Страница 13: ...TION Do NOT place any objects or equipment on top of the unit Do NOT sit climb or stand on the unit 1 5 Notices NOTICE Make sure water quality complies with EU directive 2020 2184 Check the system for...

Страница 14: ...reset the error code via outdoor unit Prerequisite Problem is solved 1 Perform a power reset to reset the error code 2 4 To perform a test run Prerequisite Power supply MUST be in the specified range...

Страница 15: ...r Effect Reset The system CANNOT set the internal settings Unit will stop operating Power reset via outdoor unit To solve the error code INFORMATION It is recommended to perform the checks in the list...

Страница 16: ...RMATION It is recommended to perform the checks in the listed order 1 Check for objects near the indoor unit that may block the airflow See 4 3 External factors 4152 Possible cause Airflow of the indo...

Страница 17: ...sible cause Faulty indoor unit fan motor INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 4 C4 00 Heat exchanger temperature sen...

Страница 18: ...If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 6 E1 00 Outdoor unit PCB defect Trigger Effect Reset Main PCB detects that EEPROM is abnorm...

Страница 19: ...ed above have been performed and the problem is still present contact the helpdesk 2 5 7 E3 00 Outdoor unit Actuation of high pressure switch Trigger Effect Reset High pressure switch opens due to mea...

Страница 20: ...it runs without warning for 60 seconds To solve the error code INFORMATION It is recommended to perform the checks in the listed order 1 Check that all stop valves of the refrigerant circuit are open...

Страница 21: ...erform the checks in the listed order 1 Perform a check of the discharge pipe thermistor See 3 13 Thermistors 4129 Possible cause Faulty discharge pipe thermistor or connector fault 2 Check that all s...

Страница 22: ...ORMATION It is recommended to perform the checks in the listed order 1 Perform a check of the outdoor unit fan motor See 3 8 Outdoor unit fan motor 4100 Possible cause Faulty outdoor unit fan motor 2...

Страница 23: ...l NOT stop operating Automatic reset after a continuous operation for some time If the error occurs too soon unit will stop operating Manual reset via user interface To solve the error code INFORMATIO...

Страница 24: ...NFORMATION It is recommended to perform the checks in the listed order 1 Check that all stop valves of the refrigerant circuit are open See 4 2 Refrigerant circuit 4144 Possible cause Closed stop valv...

Страница 25: ...rform a check of the heat exchanger thermistor See 3 13 Thermistors 4129 Possible cause Faulty heat exchanger thermistor 4 Perform a check of the expansion valve See 3 3 Expansion valve 463 Possible c...

Страница 26: ...the refrigerant circuit See 4 2 Refrigerant circuit 4144 Possible cause Non condensables and or humidity in the refrigerant circuit 4 Check if the refrigerant circuit is clogged See 4 2 Refrigerant c...

Страница 27: ...d Possible cause Thermal interface grease NOT applied properly on the heat sink INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5...

Страница 28: ...heck of the main PCB See 3 7 Main PCB 484 Possible cause Faulty main PCB 3 Check that all stop valves of the refrigerant circuit are open See 4 2 Refrigerant circuit 4144 Possible cause Closed stop va...

Страница 29: ...2 Compressor 452 Possible cause Faulty compressor or miswiring of the compressor power supply cable 3 Perform a check of the reactor See 3 10 Reactor 4122 Possible cause Faulty reactor INFORMATION If...

Страница 30: ...e been performed and the problem is still present contact the helpdesk 2 5 22 J6 00 Outdoor unit Malfunction of heat exchanger thermistor Trigger Effect Reset Outdoor heat exchanger thermistor input i...

Страница 31: ...sible cause Dirty outdoor heat exchanger INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 24 L4 00 Outdoor unit Malfunction of i...

Страница 32: ...that flows in the inverter DC section Unit will stop operating Manual reset via user interface To solve the error code INFORMATION It is recommended to perform the checks in the listed order 1 Check...

Страница 33: ...face of the heat sink Adjust if needed Possible cause Thermal interface grease NOT applied properly on the heat sink INFORMATION If all procedures listed above have been performed and the problem is s...

Страница 34: ...t 4144 Possible cause Non condensables and or humidity in the refrigerant circuit 6 Perform a check of the compressor See 3 2 Compressor 452 Possible cause Faulty compressor or miswiring of the compre...

Страница 35: ...6 Indoor unit main PCB 478 Possible cause Faulty indoor unit main PCB INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 29 U4 00...

Страница 36: ...le cause Thermal interface grease NOT applied properly on the heat sink INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 30 UA 0...

Страница 37: ...ing Service manual 37 ATXP20 35 FTXP20 71 ARXP20 35 RXP20 71 Split Comfora R32 ESIE18 01E 2023 01 INFORMATION If all procedures listed above have been performed and the problem is still present contac...

Страница 38: ...annot 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 indication See 2...

Страница 39: ...s 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 wiring When the op...

Страница 40: ...f 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 installation or...

Страница 41: ...efrigerant system Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Is the refrigerant overcharged Conduct refrigerant collection and vacuum drying and then add p...

Страница 42: ...expansion valve capillary Check if there is a temperature difference before and after expansion valve capillary Check if the main valve unit of expansion valve operates by noise vibration Is the check...

Страница 43: ...the electric system Check the thermistor Connection with PCB Output Check PCB s HAP LED s if applicable if green led on the control PCB is not blinking then the microprocessor is not working if the g...

Страница 44: ...em 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 PCB Is there a s...

Страница 45: ...conditions Dirty heat exchanger Air filter Dirty air filter Fan motor Defective fan motor 2 6 11 Swing flap does not operate Symptom Check Detail Swing flap does not operate Check swing flap motor Som...

Страница 46: ...it for it to cool down 2 Verify that the screw is firmly fixing the coil to the valve body 3 Check if any damage or burst is present Is the 4 way valve coil firmly fixed and not visually damaged Actio...

Страница 47: ...asured voltage MUST be 0 V DC Are the measured voltages correct Action Yes Perform a position check of the 4 way valve see 3 1 1 Checking procedures 446 No Perform a check the main PCB see 3 7 Main PC...

Страница 48: ...de of the 4 way valve 2 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 6 3 Piping diagram 4170 Is the flow...

Страница 49: ...the flow diagram of the specific operation mode See 6 3 Piping diagram 4170 Is the flow correct Action Yes 4 way valve is OK Return to the troubleshooting of the specific error and continue with the n...

Страница 50: ...Repair procedures 4148 1 Remove the 4 way valve coil from the 4 way valve body see 3 1 2 Repair procedures 449 2 Remove and keep the putty if installed and the insulation if installed for re use 3 Sup...

Страница 51: ...ve body in the correct location and correctly oriented Insert the pipe ends in the pipe expansions 4 Supply nitrogen to the refrigerant circuit The nitrogen pressure MUST NOT exceed 0 02 MPa 5 Wrap a...

Страница 52: ...Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 2 Compressor 3 2 1 Checking procedures INFORM...

Страница 53: ...r see 3 2 2 Repair procedures 458 No Perform an mechanical check of the compressor see 3 2 1 Checking procedures 452 To perform a mechanical check of the compressor Prerequisite First perform an audit...

Страница 54: ...see 3 2 1 Checking procedures 452 No Replace the compressor and or damaged dampers see 3 2 2 Repair procedures 458 To perform an electrical check of the compressor 1 First perform a mechanical check o...

Страница 55: ...inals to allow correct connection during installation V U W U Wire terminal U V Wire terminal V W Wire terminal W CAUTION Before measuring the compressor motor windings resistance measure the resistan...

Страница 56: ...mpressor wire terminals cover 8 Install the compressor insulation 9 Turn ON the power using the respective circuit breaker 10 Start the unit operation via the user interface CAUTION NEVER operate the...

Страница 57: ...ee 3 2 1 Checking procedures 452 Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker 1 Before proceeding DANGER RISK OF ELECTROCUTION Wait...

Страница 58: ...he compressor see 3 2 2 Repair procedures 458 3 2 2 Repair procedures To remove the compressor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit...

Страница 59: ...minal U V Wire terminal V W Wire terminal W 4 If applicable remove the screw and disconnect the ground wire from the compressor 5 Remove the following thermistors from their holder Suction thermistor...

Страница 60: ...ant pipes by heating the brazing point s of the component pipe s using an oxygen acetylene torch 9 Remove the nuts and bolts and remove the compressor from the unit a a b c c c a a Nut b Compressor c...

Страница 61: ...pic Therefore remove the caps from the compressor pipes as late as possible 5 Install the compressor on the correct location on the dampers Properly insert the refrigerant pipes in the pipe expansions...

Страница 62: ...r pipes and the oil inside the compressor pipes will damage or destroy the compressor 9 After soldering is done stop the nitrogen supply after the component has cooled down 10 Connect the Faston conne...

Страница 63: ...solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 3 Expansion valve 3 3 1 Checking procedures INFORMATION It i...

Страница 64: ...valve body INFORMATION It is highly recommended to perform a power reset after checking the valve using a magnet Does the expansion valve open Action Yes Perform an electrical check of the expansion v...

Страница 65: ...orrect location and do NOT apply force as this may damage the connector or connector pins of the PCB Is the measured resistance correct Action Yes Perform an operation check of the expansion valve see...

Страница 66: ...closing sequence each expansion valve winding 1 2 3 4 is supplied 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 sequen...

Страница 67: ...he respective circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 If needed remove any parts or insulation to create more space for the removal 2 Remove the cap if ap...

Страница 68: ...2 Repair procedures 467 To remove the expansion valve body Prerequisite Recuperate the refrigerant from the refrigerant circuit see 4 2 2 Repair procedures 4148 Prerequisite If needed remove any part...

Страница 69: ...ugs or caps on the open pipe ends of the refrigerant piping to avoid dirt or impurities from entering the piping 9 To install the expansion valve body see 3 3 2 Repair procedures 467 To install the ex...

Страница 70: ...l see 3 3 2 Repair procedures 467 10 Perform a pressure test see 4 2 1 Checking procedures 4144 11 Add refrigerant to the refrigerant circuit see 4 2 2 Repair procedures 4148 About the installation of...

Страница 71: ...r pins of the PCB 4 Fix the expansion valve coil harness using new tie straps 5 Install the insulation cap on the expansion valve coil if applicable Is the problem solved Action Yes No further actions...

Страница 72: ...sing new tie straps 5 Install the insulation cap on the expansion valve coil if applicable Is the problem solved Action Yes No further actions required No Return to 3 3 1 Checking procedures 463 of th...

Страница 73: ...easure the resistance between the Faston connections of the high pressure switch Result The switch MUST be open INFORMATION If the high pressure switch was triggered open it will stay open until the r...

Страница 74: ...pressure switch Heat the brazing point of the high pressure switch pipe using an oxygen acetylene torch and remove the high pressure switch pipe from the refrigerant pipe using pliers a c b b a High...

Страница 75: ...or destroy it 5 After soldering is done stop the nitrogen supply after the component has cooled down 6 Connect the Faston connectors to the high pressure switch 7 Perform a pressure test see 4 2 1 Ch...

Страница 76: ...uisite First perform a mechanical check of the DC fan motor assembly see 3 5 1 Checking procedures 475 1 Remove the cover from the switch box see 3 9 Plate work 4111 2 Disconnect the DC fan motor conn...

Страница 77: ...uit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Remove the switch box see 3 9 Plate work 4111 2 Click the indoor unit fan motor cover out of the indoor unit If needed...

Страница 78: ...with the next procedure 3 6 Indoor unit main PCB 3 6 1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order To perform a power check of the indoor unit main PCB...

Страница 79: ...door unit PCB see 3 6 2 Repair procedures 481 No See To check the power supply to the indoor unit 4 1 2 Repair procedures 4143 for the next steps To perform an electrical check of the indoor unit main...

Страница 80: ...onnected and that all connectors are fully plugged in 2 Check that no connectors or wires are damaged 3 Check that the wiring corresponds with the wiring diagram see 6 2 Wiring diagram 4159 INFORMATIO...

Страница 81: ...main PCB Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Correct...

Страница 82: ...pports b b a b a Indoor unit main PCB b PCB support 2 Connect all connectors to the indoor unit main PCB INFORMATION Use the wiring diagram and connection diagram for correct installation of the conne...

Страница 83: ...work see 3 9 Plate work 4111 1 Remove the fuse from the PCB a a Fuse 2 To install a fuse on the indoor unit PCB see 3 6 2 Repair procedures 481 To install a fuse on the indoor unit main PCB 1 Install...

Страница 84: ...e work 4111 1 Turn ON the power of the unit 2 Measure the voltage between the black and white wires Result The measured voltage MUST be 230 V AC a b a Black wire b White wire Is the measured voltage o...

Страница 85: ...ed voltage on the PCB correct Action Yes Return to 3 7 1 Checking procedures 484 of the PCB and continue with the next procedure No Continue with the next step 3 Check the power supply to the unit see...

Страница 86: ...lable on the PCB If NOT update using the updater tool Does the HAP LED blink in regular intervals 1 second ON 1 second OFF Action Yes Return to 3 7 1 Checking procedures 484 of the main PCB and contin...

Страница 87: ...aker 2 Check that all wires are properly connected and that all connectors are fully plugged in 3 Check that no connectors or wires are damaged 4 Check that the wiring corresponds with the wiring diag...

Страница 88: ...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 chec...

Страница 89: ...RXP50 71N units Prerequisite First perform all earlier main PCB checks see 3 7 1 Checking procedures 484 1 Measure the continuity of the fuse If no continuity is measured the fuse has blown a a Fuse...

Страница 90: ...dures 484 of the main PCB and continue with the next procedure To check the rectifier voltage of the main PCB Prerequisite First perform all earlier main PCB checks see 3 7 1 Checking procedures 484 1...

Страница 91: ...Repair procedures 496 To perform a diode module check 1 First check the rectifier voltage of the main PCB see 3 7 1 Checking procedures 484 INFORMATION If the rectifier voltage is OK the diode module...

Страница 92: ...XP20 35N RXP20 35N units a V DC out b V AC in c V AC in d V DC out INFORMATION When measuring on the front of the main PCB make sure to locally remove the protective varnish with the test leads of the...

Страница 93: ...Turn OFF the respective circuit breaker DANGER RISK OF ELECTROCUTION Wait for at least 10 minutes after the circuit breaker has been turned OFF to be sure the rectifier voltage is below 10 V DC before...

Страница 94: ...ith the test leads of the multi meter VDC Com Ref VDC Com Ref U DC 0 501 V DC U O L V DC 0 501 V DC V O L W DC 0 501 V DC W O L DC U 0 501 V U DC O L DC V 0 501 V V DC O L DC W 0 501 V W DC O L Power...

Страница 95: ...C U O L V DC 0 475 V DC V O L W DC 0 475 V DC W O L DC U 0 475 V U DC O L DC V 0 475 V V DC O L DC W 0 475 V W DC O L Are the test results OK Action Yes Power modules are OK Return to 3 7 1 Checking p...

Страница 96: ...oken wires Is the problem solved Action Yes No further actions required No Return to 3 7 1 Checking procedures 484 of the PCB and continue with the next procedure To remove the main PCB ARXP L ARXP M...

Страница 97: ...ctive circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Disconnect all connectors and Faston connectors from the main PCB a a a b b a Screw b PCB support 2 Remove t...

Страница 98: ...upply terminal X1M 7 Connect the red wire to the main power supply terminal X1M 8 Fix the ferrite core for power supply wiring to the switch box fixation plug 9 Connect all connectors to the main PCB...

Страница 99: ...ct installation of the connectors see 6 2 Wiring diagram 4159 Is the problem solved Action Yes No further actions required No Return to 3 7 1 Checking procedures 484 of the PCB and continue with the n...

Страница 100: ...rrect location on the PCB CAUTION Make sure the fuse is plugged in correctly contact with the fuse holder a a Fuse Is the problem solved Action Yes No further actions required No Return to 3 7 1 Check...

Страница 101: ...fan motor see Repair procedures 4104 That fan motor fixation bolts are correctly installed and fixed Correct as needed 2 Manually rotate the fan motor shaft Check that it rotates smoothly 3 Check the...

Страница 102: ...red resistance MUST be VDC Comm Resistance 1 4 71 79 1 7 4 7 10 GND 1 OL 4 7 11 1 96 k 12 10 9 k 13 INFORMATION The measured resistance values may deviate from the listed values due to instability dur...

Страница 103: ...ee Checking procedures 4100 INFORMATION Check the DC fan motor power supply voltage circuit on the PCB 2 Turn ON the power of the unit 3 Activate Cooling or Heating operation via the user interface 4...

Страница 104: ...Yes Perform a check of the main PCB see 3 7 1 Checking procedures 484 No Replace the DC fan motor see Repair procedures 4104 Problem solved After all checking procedures listed above have been perform...

Страница 105: ...rom the unit 9 To install the DC fan motor assembly see Repair procedures 4104 To install the DC fan motor assembly 1 Install the DC fan motor assembly in the correct location 2 Fix the DC fan motor a...

Страница 106: ...ted on its base see Repair procedures 4109 2 Check the state of the propeller fan blade assembly for damage deformations and cracks Is the propeller fan blade assembly damaged Action Yes Replace the p...

Страница 107: ...specific error and continue with the next procedure Does not rotate or rotates for a short time Continue with the next step INFORMATION The DC fan motor connector MUST be plugged into the appropriate...

Страница 108: ...connector S71 pins 2 4 rotation command on the PCB Result The measured voltage should be 0 7 V DC It should NOT be 0 V DC Is the measured voltage 0 V DC Action Yes Perform a check of the main PCB see...

Страница 109: ...e assembly from the DC fan motor assembly INFORMATION Use a pulley remover if the propeller cannot be removed manually 4 To install the propeller fan blade assembly see Repair procedures 4109 To remov...

Страница 110: ...otor harness to the switch box 5 Install a new tie strap to fix the DC fan motor harness to the switch box 6 Connect the DC fan motor connector to the connector on the main PCB 7 Lock the ferrite bead...

Страница 111: ...2 1 1 1 To remove the top plate INFORMATION This procedure is just an example and may differ on some details for your actual unit Prerequisite Stop the unit operation via the user interface 1 Turn OFF...

Страница 112: ...tails for your actual unit Prerequisite Remove the top plate see 3 9 Plate work 4111 1 Loosen and remove the screws that fix the front plate a a a a a a a Screw b Front plate 2 Remove the front plate...

Страница 113: ...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 plate work see 3...

Страница 114: ...ESIE18 01E 2023 01 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 5 Remove the wi...

Страница 115: ...tch box from the outdoor unit 9 To install the switch box see 3 9 Plate work 4111 To install the switch box INFORMATION This procedure is just an example and may differ on some details for your actual...

Страница 116: ...e 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 connection diagram for correct installation of the...

Страница 117: ...71 Split Comfora R32 ESIE18 01E 2023 01 a b a Cable tie b Switch box 7 Install the insulation on the upper side of the switch box a b a Insulation b Main PCB 3 9 2 Indoor unit To open the front panel...

Страница 118: ...the left or the right and pulling it toward you Result The front panel shaft on 1 side will be disconnected 3 Disconnect the front panel shaft on the other side in the same manner a a Front panel shaf...

Страница 119: ...ard you 1 2 To remove the electrical wiring box cover TO OPEN THE SERVICE COVER 1 Remove 1 screw from the service cover 2 Pull out the service cover horizontally away from the unit a b a Service cover...

Страница 120: ...isite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Disconnect the power supply wiring from the power supply terminal X1M 2 Remove the s...

Страница 121: ...ox and connect them to the indoor unit PCB 3 Install and tighten the screw to secure the switch box 4 Install the heat exchanger thermistor in its holder 5 Connect the grounding wires to the heat exch...

Страница 122: ...e rectifier voltage is below 10 V DC before proceeding 3 Remove the cover of the compressor wire terminals a a Compressor wire terminals cover 4 Visually check the reactor for any damage or burnt out...

Страница 123: ...e the required plate work see 3 9 Plate work 4111 2 Open the compressor insulation DANGER RISK OF ELECTROCUTION Wait for at least 10 minutes after the circuit breaker has been turned OFF to be sure th...

Страница 124: ...11 1 Checking procedures To perform an electrical check of the swing flap motor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prereq...

Страница 125: ...quisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Remove both swing flaps from the indoor unit by clicking it out 2 Remove the cover...

Страница 126: ...troubleshooting of the specific error and continue with the next procedure 3 12 Swing raster motor 3 12 1 Checking procedures To perform an electrical check of the swing raster motor Prerequisite Stop...

Страница 127: ...ir procedures 4127 3 12 2 Repair procedures To remove the swing raster motor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisi...

Страница 128: ...ing raster motor and remove the motor Keep the rod and bracket for reuse 8 To install the swing raster motor see 3 12 2 Repair procedures 4127 To install the swing raster motor 1 Install the swing ras...

Страница 129: ...m solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 3 13 Thermistors 3 13 1 Refrigerant side thermistors Checkin...

Страница 130: ...9 2 Locate the thermistor INFORMATION Remove the thermistor from its holder if not reachable with a contact thermometer 3 Measure the temperature using a contact thermometer Name Symbol Location PCB C...

Страница 131: ...81 08 76 93 73 01 69 32 21 22 23 24 25 26 27 28 29 23 91 22 85 21 85 20 90 20 00 19 14 18 32 17 54 16 80 51 52 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...

Страница 132: ...ue matches the resistance determined through the measured temperature but the temperature for the corresponding thermistor is NOT correct on the user interface display replace the applicable PCB INFOR...

Страница 133: ...via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 9 Plate work 4111 1 Disconnect the connector from the display PCB 2 Press...

Страница 134: ...MATION Some of the thermistors are wired to the same connector See connector and pin information of the thermistors at the start of the electrical check procedure and 6 2 Wiring diagram 4159 ALWAYS re...

Страница 135: ...the unit 2 Connect the connector to the display PCB Other refrigerant side thermistors 1 Install the thermistor as follows For outdoor unit air ambient thermistor Insert the thermistor in the protect...

Страница 136: ...en reconnecting a connector to the PCB make sure to connect it on the correct location and do NOT apply force as this may damage the connector or connector pins of the PCB 5 Fix the thermistor harness...

Страница 137: ...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 91 22 85 21 85 20 90 20 00 19 14 18 32 17 54 16 80 51 52 53 54 55 56 57 58 59 6...

Страница 138: ...the thermistor match with the temperature determined resistance Action Yes Thermistor is OK Return to the troubleshooting of the specific error and continue with the next procedure No Replace the spec...

Страница 139: ...main PCB see 3 6 1 Checking procedures 478 5 As there are no further check procedures for this component perform a check of the indoor unit main PCB to check if the wifi control PCB needs to be repla...

Страница 140: ...CB assembly Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure To remove the wifi control PCB wiri...

Страница 141: ...ctor to the indoor unit main PCB WARNING When reconnecting a connector to the PCB make sure to connect it on the correct location and do NOT apply force as this may damage the connector or connector p...

Страница 142: ...hases MUST NOT exceed 2 Is the measured voltage power supply correct Action Yes Return to the troubleshooting of the specific error and continue with the next procedure No Adjust the power supply see...

Страница 143: ...with the wiring diagram see 6 2 Wiring diagram 4159 INFORMATION Correct the wiring as needed Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the speci...

Страница 144: ...tion Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 4 2 Refrigerant circuit 4 2 1 Checking procedures INFORMATION It is rec...

Страница 145: ...ad the pressure on the pressure gauge If at the start of the unit operation the pressure is high or very low the refrigerant circuit might be clogged 7 On the refrigerant liquid piping between the ind...

Страница 146: ...increases on the capacity control Low pressure is maintained at a certain level High pressure drooping control Operating frequency comes to the lowest level Subcooling degree becomes higher The tempe...

Страница 147: ...cooling control with low outdoor air Low pressure rises with increasing opening degree of the electronic expansion valve and the operating frequency slightly increases due to the capacity control High...

Страница 148: ...gnificantly higher 5K non condensables gasses are most likely present in the refrigerant Any non condensables found in the refrigerant circuit Action Yes To replace the refrigerant see 4 2 2 Repair pr...

Страница 149: ...ee the correct procedure for the component that needs to be repaired See also Repair information 4150 for more details Is the problem solved Action Yes No further actions required No Return to the tro...

Страница 150: ...ke sure to use the appropriate equipment and 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 vacu...

Страница 151: ...and stop forced cooling operation Refrigerant piping repair Make sure to cover open pipe ends during repair so no dust or moisture can enter Make sure to re apply insulation removed during repair Pip...

Страница 152: ...the system If multiple vacuum cycles need to be performed break the vacuum between the cycles using dry nitrogen Depending on the site conditions as mentioned above lower pressure values MIGHT be nee...

Страница 153: ...1 To check for objects that may block the airflow 1 Check for the presence of object s near the indoor unit that may block the airflow Remove the object s as needed Is the problem solved Action Yes No...

Страница 154: ...oor unit heat exchanger from dust leaves using a fin comb or compressed air N2 CAUTION Avoid bending or damaging the hair fins of the outdoor unit heat exchanger during the cleaning process Do NOT use...

Страница 155: ...the cleaning process CAUTION Rinse out the cleaning agent until there is NO cleaning agent left Otherwise the corrosion of heat exchanger and drain pan may occur Pay attention to the cleaning agent t...

Страница 156: ...ted in lukewarm water Dry the air filters in the shade Be sure to remove the titanium apatite deodorising filter It is recommended to clean the air filters every 2 weeks ATXP M ATXP N FTXP M FTXP N 6...

Страница 157: ...f 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 apatite deodorising and silver particle filters It is r...

Страница 158: ...ailed information setting mode Indoor unit See the installer reference guide on business portal for more information 6 1 2 Detailed information setting mode Outdoor unit See the installer reference gu...

Страница 159: ...iring diagram Indoor Indoor Outdoor Outdoor Transmission circuit Transmission circuit Signal receiver Signal receiver Wireless remote control Wireless remote control Horizontal Horizontal Vertical Ver...

Страница 160: ...oard R1T Room thermistor R2T Suction pipe thermistor S6 S602 Connector S1W Operation switch V2 Varistor X1M Terminal strip Z C Ferrite core FTXP20 35M9 1 Wiring diagram English Translation Wiring diag...

Страница 161: ...Caution When the main power is turned off and then back on again operation will resume automatically 3 Legend A1P A4P Printed circuit board BZ Buzzer FG Frame ground FU1 Fuse H Harness IPM Intelligen...

Страница 162: ...er Signal receiver Wireless remote control Wireless remote control Horizontal Horizontal Vertical Vertical WI FI control adapter WI FI control adapter Shield plate Shield plate 2 Notes English Transla...

Страница 163: ...relay R1T Room thermistor R2T Suction pipe thermistor S1 S800 Connector S1W Operation switch V1 Varistor X1M Terminal strip Z C Ferrite core FTXP50 71L FTXP50 71M FTXP50 71N 1 Wiring diagram English T...

Страница 164: ...and then back on again operation will resume automatically 3 Legend FG HE S6 S900 Connector F1U FU1 Fuse T1R L301 Transformer M1F Fan motor M S Swing flap motor K1R MR10 Magnetic relay A P Printed ci...

Страница 165: ...diagram Wiring diagram Indoor Indoor Outdoor Outdoor Condenser Condenser Discharge Discharge 2 Notes English Translation Note Note Connection X1M Main terminal Field supply PCB Protective earth Field...

Страница 166: ...hermistor Y1E Electronic expansion valve Z C Noise filter ferrite core Z F Noise filter ARXP20 35N RXP20 35N 1 Wiring diagram English Translation Wiring diagram Wiring diagram Indoor Indoor Outdoor Ou...

Страница 167: ...pressor motor M1F Fan motor A1P Printed circuit board PS Switching power supply Q1L Overload protector R1T Thermistor air R2T Thermistor heat exchanger R3T Thermistor discharge SA Surge arrestor S10 S...

Страница 168: ...RN Green GRY Grey ORG Orange RED Red WHT White YLW Yellow For the power requirements refer to the nameplate 3 Legend C Capacitor D Diode DB1 Diode bridge E1 E2 HL1 HN1 S U V W Connector FU1 FU2 FU3 Fu...

Страница 169: ...XP20 71 Split Comfora R32 ESIE18 01E 2023 01 S1PH High pressure switch S2 S90 Terminal connector SA1 Surge arrestor V1 V2 V3 Varistor X11A Connector X1M Terminal strip Y1E Electronic expansion valve Y...

Страница 170: ...6 4CuT 9 5CuT 9 5CuT 6 4CuT a b c d R2T M1F a Field piping liquid 6 4 mm flare connection b Field piping gas 9 5 mm flare connection c Crossflow fan d Heat exchanger M1F Fan motor R2T Thermistor heat...

Страница 171: ...1F a Field piping liquid 6 4 mm flare connection b Field piping gas 9 5 mm flare connection c Crossflow fan d Heat exchanger M1F Fan motor R2T Thermistor heat exchanger Heating Cooling INFORMATION The...

Страница 172: ...1F a Field piping liquid 6 4 mm flare connection b Field piping gas 9 5 mm flare connection c Crossflow fan d Heat exchanger M1F Fan motor R2T Thermistor heat exchanger Heating Cooling INFORMATION The...

Страница 173: ...e a Field piping liquid 6 4 mm flare connection b Field piping gas 12 7 mm flare connection c Crossflow fan d Heat exchanger e Distributor M1F Fan motor R2T Thermistor heat exchanger Heating Cooling...

Страница 174: ...liquid 6 4 mm flare connection b Field piping gas 9 5 mm flare connection c Stop valve liquid d Stop valve with service port gas e Muffler with filter f Heat exchanger g Accumulator h Muffler M1C Comp...

Страница 175: ...alve with service port gas e Muffler with filter f Heat exchanger g Accumulator h Muffler S1PH High pressure switch M1C Compressor M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchanger R3T...

Страница 176: ...b Field piping gas 9 5 mm flare connection 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 o...

Страница 177: ...e with service port gas e Muffler with filter f Heat exchanger g Accumulator h Muffler S1PH High pressure switch M1C Compressor M1F Fan R1T Thermistor outdoor air R2T Thermistor heat exchanger R3T The...

Страница 178: ...6 4 mm flare connection b Field piping gas 12 7 mm flare connection c Stop valve liquid d Stop valve gas e Muffler f Liquid receiver g Filter h Muffler with filter i Heat exchanger j Accumulator M1C C...

Страница 179: ...Field piping liquid 6 4 mm flare connection b Field piping gas 12 7 mm flare connection c Stop valve liquid d Stop valve gas e Muffler f Liquid receiver g Filter h Muffler with filter i Heat exchange...

Страница 180: ...plit Comfora R32 ESIE18 01E 2023 01 6 4 Component overview 6 4 1 Component overview Indoor unit ATXP L FTXP L a b c d e f h g a Heat exchanger b Heat exchanger thermistor R2T c Fan motor d Swing flap...

Страница 181: ...1 Split Comfora R32 ESIE18 01E 2023 01 ATXP M ATXP N FTXP M FTXP N a b c d e f h g i j a Heat exchanger b Heat exchanger thermistor R2T c Fan motor d Swing flap e Swing flap motor f Room thermistor R1...

Страница 182: ...h m m a Air thermistor R1T j Service PCB b Heat exchanger k High pressure switch only for RXP50 71L RXP50 71M RXP50 71N and ARXP20 35M c Expansion valve l Discharge pipe thermistor R3T d Heat exchange...

Страница 183: ...6 Technical data Service manual 183 ATXP20 35 FTXP20 71 ARXP20 35 RXP20 71 Split Comfora R32 ESIE18 01E 2023 01 6 5 Field information report See next page...

Страница 184: ...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 185: ...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 186: ...vice tools check the Daikin Business Portal authentication required 2 Go to the tab After sales support on the left navigation pane and select Technical support 3 Click the button Service tools An ove...

Страница 187: ...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 field sett...

Страница 188: ...ng It is possible 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 recommend...

Страница 189: ...n the circuit board using nippers or a similar tool to expand the operation range of the outdoor unit down to 15 C INFORMATION The outdoor unit will stop operating when the temperature drops below 20...

Страница 190: ......

Страница 191: ......

Страница 192: ...ESIE18 01E 2023 01 Copyright 2019 Daikin Verantwortung f r Energie und Umwelt...

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