Daikin RXQ25AMV1B User Manual Download

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Service manual

Split Sensira R32 BBOP

RXQ25AMV1B
RXQ35AMV1B
ARXQ25AMV1B
ARXQ35AMV1B

FTXQ25AMV1B
FTXQ35AMV1B
ATXQ25AMV1B
ATXQ35AMV1B

Summary of Contents for RXQ25AMV1B

Page 1: ...Service manual Split Sensira R32 BBOP RXQ25AMV1B RXQ35AMV1B ARXQ25AMV1B ARXQ35AMV1B FTXQ25AMV1B FTXQ35AMV1B ATXQ25AMV1B ATXQ35AMV1B...

Page 2: ...his 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 ser...

Page 3: ...n log Service manual 3 RXQ25 35AMV1B ARXQ25 35AMV1B FTXQ25 35AMV1B ATXQ25 35AMV1B Split Sensira R32 BBOP ESIE21 16 2022 02 Version log Version code Description Date ESIE21 16 Document release February...

Page 4: ...0 Outdoor unit Malfunction of position detection sensor 26 2 5 17 H8 00 Outdoor unit Malfunction of compressor input system 27 2 5 18 H9 00 Outdoor unit Malfunction of outdoor air thermistor 28 2 5 19...

Page 5: ...Electrical circuit 118 4 1 1 Checking procedures 118 4 1 2 Repair procedures 119 4 2 Refrigerant circuit 120 4 2 1 Checking procedures 120 4 2 2 Repair procedures 124 4 3 External factors 127 4 3 1 Ch...

Page 6: ...tructions for 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...

Page 7: ...he voltage at the terminals 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 th...

Page 8: ...f spilled fluids 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...

Page 9: ...cylinders WARNING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed ro...

Page 10: ...OT 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 applicab...

Page 11: ...UST be taken 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 an...

Page 12: ...en properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release Consult manufacturer if in doubt Do NOT overfill the refrigera...

Page 13: ...the unit CAUTION 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 th...

Page 14: ...to reset the error 2 3 To 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 INFORMATION If the unit runs i...

Page 15: ...NFORMATION Some of the functions CANNOT be used in the test run operation mode If a power failure occurs during operation the system automatically restarts immediately after power is restored 2 5 Erro...

Page 16: ...trol Unit will stop operating Automatic reset when temperature is within range During heating operation indoor heat exchanger temperature is above 65 C heating peak cut control To solve the error code...

Page 17: ...4 Possible cause Faulty indoor unit main PCB 2 Perform a check of the indoor unit fan motor See 3 5 Indoor unit fan motor 472 Possible cause Faulty indoor unit fan motor INFORMATION If all procedures...

Page 18: ...door unit air room thermistor 2 Perform a check of the indoor unit main PCB See 3 6 Indoor unit main PCB 474 Possible cause Faulty indoor unit main PCB INFORMATION If all procedures listed above have...

Page 19: ...erface 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 7 E5 00 Outdoor unit Overhe...

Page 20: ...00 Outdoor unit Compressor startup defect Trigger Effect Reset The motor rotor does NOT rotate when the compressor is energized Unit will NOT stop operating Automatic reset after a continuous run for...

Page 21: ...t Malfunction of outdoor unit fan motor Trigger Effect Reset Fan does NOT start 15 30 seconds after ON signal It can occur that the error code is triggered when the fan motor is running caused by a fa...

Page 22: ...nominal operating voltage 4 Power drop Short circuit INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 11 EA 00 Outdoor unit Cool...

Page 23: ...discharge pipe temperature Trigger Effect Reset Discharge pipe thermistor detects a too high temperature Unit will NOT stop operating Automatic reset when temperature drops normal level If the error...

Page 24: ...intenance 4129 Possible cause Dirty outdoor heat exchanger 2 Check that all stop valves of the refrigerant circuit are open See 4 2 Refrigerant circuit 4120 Possible cause Closed stop valve in the ref...

Page 25: ...if the refrigerant circuit is correctly charged See 4 2 Refrigerant circuit 4120 Possible cause Refrigerant overcharge 3 Check for the presence of non condensables and or humidity in the refrigerant...

Page 26: ...n the PCB or refrigerant piping contact surface of the heat sink Adjust if needed Possible cause Thermal interface grease NOT applied properly on the heat sink INFORMATION If all procedures listed abo...

Page 27: ...ating voltage 4 Power drop Short circuit INFORMATION If all procedures listed above have been performed and the problem is still present contact the helpdesk 2 5 17 H8 00 Outdoor unit Malfunction of c...

Page 28: ...d the problem is still present contact the helpdesk 2 5 19 J3 00 Outdoor unit Malfunction of discharge pipe thermistor Trigger Effect Reset Discharge pipe thermistor input is out of range Unit will st...

Page 29: ...x 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 order 1 Perform a check...

Page 30: ...t circuit 3 Perform a check of the main PCB See 3 8 Main PCB 481 Possible cause Faulty main PCB Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit...

Page 31: ...B 481 Possible cause Faulty main PCB 6 Perform a check of the compressor See 3 2 Compressor 450 Possible cause Faulty compressor or miswiring of the compressor power supply cable 7 Check if the power...

Page 32: ...r code INFORMATION It is recommended to perform the checks in the listed order 1 Perform a check of all refrigerant side thermistors See 3 13 Thermistors 4108 Possible cause Faulty refrigerant side th...

Page 33: ...form the checks in the listed order 1 Check if the power supply is compliant with the regulations See 4 1 Electrical circuit 4118 Possible cause Faulty or disturbance of the power supply power supply...

Page 34: ...unit and the indoor unit 3 Perform a check of the main PCB See 3 8 Main PCB 481 Possible cause Faulty main PCB 4 Perform a check of the outdoor unit fan motor See 3 9 Outdoor unit fan motor 490 Possi...

Page 35: ...der 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 check of the power supply connections wiring bet...

Page 36: ...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 indic...

Page 37: ...eld 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 wiring...

Page 38: ...ere 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 ins...

Page 39: ...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 drying an...

Page 40: ...r after the 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...

Page 41: ...nsulation of 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 work...

Page 42: ...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 PCB...

Page 43: ...nstallation 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 fl...

Page 44: ...energized Wait 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 d...

Page 45: ...Perform a position check of the 4 way valve see 3 1 1 Checking procedures 444 No Perform a check the main PCB see 3 8 Main PCB 481 When outdoor temperature does not allow the unit to run in cooling or...

Page 46: ...rresponds with the flow shown in the flow diagram See 6 3 Piping diagram 4141 Is the flow correct Action Yes Skip the next step of this procedure No Perform the next step of this procedure 3 Connect a...

Page 47: ...ation mode See 6 3 Piping diagram 4141 Is the flow correct Action Yes 4 way valve is OK Return to the troubleshooting of the specific error and continue with the next procedure No Perform the next ste...

Page 48: ...circuit see 4 2 2 Repair procedures 4124 1 Remove the 4 way valve coil from the 4 way valve body see 3 1 2 Repair procedures 447 2 Remove and keep the putty if installed and the insulation if install...

Page 49: ...nstall the 4 way valve 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 excee...

Page 50: ...or connector pins of the PCB 5 Fix the 4 way valve coil harness using new tie straps Is the problem solved Action Yes No further actions required No Return to the troubleshooting of the specific erro...

Page 51: ...al lock is present on the compressor Action Yes Replace the compressor see 3 2 2 Repair procedures 456 No Perform an mechanical check of the compressor see 3 2 1 Checking procedures 450 To perform a m...

Page 52: ...compressor see 3 2 1 Checking procedures 450 No Replace the compressor and or damaged dampers see 3 2 2 Repair procedures 456 To perform an electrical check of the compressor 1 First perform a mechan...

Page 53: ...or wire terminals 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...

Page 54: ...stall the compressor 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...

Page 55: ...2 1 Checking procedures 450 Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker 1 Wait until the rectifier voltage is below 10 V DC DANGER...

Page 56: ...No Replace the compressor see 3 2 2 Repair procedures 456 3 2 2 Repair procedures To remove the compressor Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respect...

Page 57: ...re terminals to allow correct connection during installation V U W U Wire terminal U V Wire terminal V W Wire terminal W 4 Remove the compressor thermal protector see To remove the compressor thermal...

Page 58: ...nt pipe s using an oxygen acetylene torch 8 Remove the nuts and bolts and remove the compressor from the unit a a b c c c a a Nut b Compressor c Damper 9 Remove the 3 dampers from the compressor INFOR...

Page 59: ...possible 5 Install the compressor on the correct location on the dampers Properly insert the refrigerant pipes in the pipe expansions of the compressor pipes 6 Install and tighten the bolts and nuts t...

Page 60: ...wn 10 Install the compressor thermal protector see To install the compressor thermal protector 464 11 Connect the Faston connectors to the compressor wire terminals U V and W V U W U Wire terminal U V...

Page 61: ...hermal protector 3 3 1 Checking procedures To perform a mechanical check of the compressor thermal protector Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respe...

Page 62: ...n to slightly above 123 C compressor thermal protection trips at 117 123 C 6 Measure the resistance on the compressor thermal protector Result The contact MUST be open measured resistance OL 7 Let the...

Page 63: ...compressor insulation 1 Remove the cover of the compressor wire terminals a a Compressor wire terminals cover 2 Remove the compressor thermal protector with bracket from the compressor housing a b c...

Page 64: ...edures 456 To install the compressor thermal protector 1 Install the compressor thermal protector on the compressor thermal protector bracket a b a Compressor thermal protector b Compressor thermal pr...

Page 65: ...turn ON the unit and listen to the expansion valve assembly If the expansion valve does NOT make a latching sound continue with the electrical check of the expansion valve see 3 4 1 Checking procedur...

Page 66: ...Yes Perform an electrical check of the expansion valve see 3 4 1 Checking procedures 465 No Replace the expansion valve body see 3 4 2 Repair procedures 469 To perform an electrical check of the expa...

Page 67: ...it on the correct 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 expansi...

Page 68: ...opening or 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 cl...

Page 69: ...ull the expansion valve coil to remove it from the expansion valve body INFORMATION It may be needed to turn the expansion valve coil 1 8 turn counter clockwise to unlock it Make sure to note the corr...

Page 70: ...s from the refrigerant pipes by heating the brazing point s of the component pipe s using an oxygen acetylene torch 8 Install plugs or caps on the open pipe ends of the refrigerant piping to avoid di...

Page 71: ...e 3 4 2 Repair procedures 469 10 Perform a pressure test see 4 2 1 Checking procedures 4120 11 Add refrigerant to the refrigerant circuit see 4 2 2 Repair procedures 4124 To install the expansion valv...

Page 72: ...of the DC fan motor assembly Prerequisite Stop the unit operation via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 10 Plate...

Page 73: ...inue with the next procedure No Replace the DC fan motor see 3 5 2 Repair procedures 473 3 5 2 Repair procedures To remove the DC fan motor assembly Prerequisite Stop the unit operation via the user i...

Page 74: ...itch box see 3 10 Plate work 494 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 6 Indoor uni...

Page 75: ...t and the indoor unit PCB see 3 6 2 Repair procedures 477 No See To check the power supply to the indoor unit 4 1 2 Repair procedures 4119 for the next steps To perform an electrical check of the indo...

Page 76: ...e properly connected 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 413...

Page 77: ...indoor unit 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 10 Plate work 49...

Page 78: ...n the PCB supports 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...

Page 79: ...quired plate work see 3 10 Plate work 494 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 477 To install a fuse on the indoor unit main P...

Page 80: ...nsulation 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 proceeding 2 Remove the cover...

Page 81: ...he Faston connectors to the wire terminals U V and W of the compressor INFORMATION Use the notes made during disconnection to connect the compressor wiring to the correct wire terminals of the compres...

Page 82: ...asured voltage MUST be 230 V AC a a Connector S10 Is the measured voltage on the PCB correct Action Yes Return to 3 8 1 Checking procedures 481 of the PCB and continue with the next procedure No Conti...

Page 83: ...First perform all earlier main PCB checks see 3 8 1 Checking procedures 481 1 Visit your local spare parts webbank 2 Enter the model name of your unit and check if the installed spare part number corr...

Page 84: ...actions required No Return to 3 8 1 Checking procedures 481 of the PCB and continue with the next procedure To check the fuse of the main PCB Prerequisite First perform all earlier main PCB checks se...

Page 85: ...see 3 8 1 Checking procedures 481 No Replace the main PCB see 3 8 2 Repair procedures 489 To perform a diode module check 1 First check the rectifier voltage of the main PCB see 3 8 1 Checking procedu...

Page 86: ...the diode module is NOT OK replace the main PCB see 3 8 2 Repair procedures 489 To perform a power module check Prerequisite First check the rectifier voltage of the main PCB see 3 8 1 Checking proce...

Page 87: ...PCB make sure to locally remove the protective varnish with 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 D...

Page 88: ...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 8 1 Checking proc...

Page 89: ...the problem solved Action Yes No further actions required No Return to 3 8 1 Checking procedures 481 of the PCB and continue with the next procedure To remove the main PCB Prerequisite Stop the unit...

Page 90: ...stallation of the connectors see 6 2 Wiring diagram 4133 Is the problem solved Action Yes No further actions required No Return to 3 8 1 Checking procedures 481 of the PCB and continue with the next p...

Page 91: ...fan motor shaft Check that it rotates smoothly 3 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 mot...

Page 92: ...could affect resistance measurements 9 Set the Megger voltage to 500 V DC or 1000 V DC 10 Measure the insulation resistance for the motor terminals Measurements between each phase and fan motor body e...

Page 93: ...otor harness from the switch box 6 Slightly bend the harness retainers to detach the DC fan motor harness 7 Remove the 4 screws that fix the DC fan motor assembly 8 Remove the DC fan motor assembly fr...

Page 94: ...tall a damaged propeller fan blade assembly 2 Install and tighten the nut to fix the propeller fan blade assembly a b a Nut b Propeller fan blade assembly Is the problem solved Action Yes No further a...

Page 95: ...e 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 proceeding 2 Loosen a...

Page 96: ...unit Prerequisite Remove the front plate see 3 10 Plate work 494 1 Untwist the cord and remove the compressor sound insulation a a Compressor sound insulation To remove the switch box INFORMATION Thi...

Page 97: ...6 2022 02 a b a Insulation b Main PCB 2 Disconnect all connectors from the main PCB 3 Disconnect the electrical power supply wiring from the wire terminals f a d c b e a Electrical power supply wiring...

Page 98: ...able tie a b a Cable tie b Switch box 8 Lift and remove the switch box from the outdoor unit 9 To install the switch box see 3 10 Plate work 494 To install the switch box INFORMATION This procedure is...

Page 99: ...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 connection diagram for correct install...

Page 100: ...b Switch box 7 Install the insulation on the upper side of the switch box a b a Insulation b Main PCB 3 10 2 Indoor unit To open the front panel 1 Hold the front panel by the panel tabs on both sides...

Page 101: ...eft 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 shaft To...

Page 102: ...cover horizontally away from the unit a b a Service cover screw b Service cover NOTICE When closing the service cover make sure that the tightening torque does NOT exceed 1 4 0 2 N m TO REMOVE THE ELE...

Page 103: ...racket 3 Pull the clip and remove the heat exchanger thermistor from its holder 4 Remove the screw to disconnect the grounding wire from the heat exchanger a e g b c d f a Power supply terminal X1M b...

Page 104: ...the heat exchanger using the screw 6 Connect the power supply wiring to the power supply terminal X1M 7 Install the power supply wiring bracket Install and tighten the screw To re install the front g...

Page 105: ...insulation resistance Make sure there is no earth leakage Is the measured insulation resistance correct Action Yes Continue with the next step No Replace the reactor see 3 11 2 Repair procedures 4105...

Page 106: ...the reactor 1 Install the reactor on the correct location on the switch box a b b a Reactor b Screw 2 Install the 2 screws that fix the reactor to the switch box 3 Connect the Faston connectors to th...

Page 107: ...low Pins Measured resistance 1 2 232 5 267 5 1 3 1 4 1 5 2 3 465 535 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 e...

Page 108: ...swing flap motor 4 Install the cover 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 13 Ther...

Page 109: ...ocedures 4108 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 Lo...

Page 110: ...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 91 6 65 6 41 6 65 6 41 6 18 5 95 5 74 5 14 0 65 84 30...

Page 111: ...sistance value 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 applicab...

Page 112: ...ration via the user interface Prerequisite Turn OFF the respective circuit breaker Prerequisite Remove the required plate work see 3 10 Plate work 494 1 Disconnect the connector from the display PCB 2...

Page 113: ...mistor INFORMATION 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 41...

Page 114: ...location on the unit 2 Connect the connector to the display PCB Other refrigerant side thermistors 1 Install the thermistor in the thermistor holder as follows For outdoor unit air ambient thermistor...

Page 115: ...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 using new tie straps 6 Install th...

Page 116: ...2 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 117: ...2 02 INFORMATION All thermistors have a resistance tolerance of 3 Does the measured resistance of the thermistor match with the temperature determined resistance Action Yes Thermistor is OK Return to...

Page 118: ...esult 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 and c...

Page 119: ...oblem solved Action Yes No further actions required No Return to the troubleshooting of the specific error and continue with the next procedure 4 1 2 Repair procedures To adjust the power supply 1 Mak...

Page 120: ...ng of the specific error and continue with the next procedure 4 2 Refrigerant circuit 4 2 1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order To check if the...

Page 121: ...il using a contact thermometer measure the temperature before and after every restricting device If a big temperature difference is measured 2 5 4K an internal pipe obstruction may be present at this...

Page 122: ...pressure rises with lowering compressor output Operating frequency Low pressure High pressure Heating Proper amount Higher degree of overcharge Degree of overcharge To maintain high pressure frequency...

Page 123: ...decreasing Operating frequency comes to the lowest level Heating Frequency Low pressure High pressure Proper amount Higher degree of shortage Degree of refrigerant shortage To maintain low pressure fr...

Page 124: ...4 2 2 Repair procedures 4124 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 tes...

Page 125: ...ir information 4126 for more details 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 recuper...

Page 126: ...ls 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 mm...

Page 127: ...ved 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 crack...

Page 128: ...he specific error and continue with the next procedure No Wait for the outdoor temperature to return within the operating range To check for objects that may block the airflow 1 Check for the presence...

Page 129: ...ear the outdoor 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 proces...

Page 130: ...rocess 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 that may also co...

Page 131: ...0 to 15 minutes INFORMATION If the dust does NOT come off easily wash them with a neutral detergent diluted in lukewarm water Dry the air filters in the shade It is recommended to clean the air filter...

Page 132: ...de 6 1 1 Detailed 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...

Page 133: ...Meaning Circuit breaker Protective earth Connection Protective earth screw Connector A Rectifier Earth Relay connector Field wiring Short circuit connector Fuse Terminal INDOOR Indoor unit Terminal s...

Page 134: ...r IPM Intelligent power module K R KCR KFR KHuR K M Magnetic relay L Live L Coil L R Reactor M Stepper motor M C Compressor motor M F Fan motor M P Drain pump motor M S Swing motor MR MRCW MRM MRN Mag...

Page 135: ...PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector switch SHEET METAL Terminal strip fixed plate T R Transform...

Page 136: ...th the unit and can also be found in the technical data book 3D135795A PCB2 BLK 1 1 S26 S27 1 2 3 X1M 1 2 3 PCB1 BLK WHT RED GRN GRN YLW IPM200 V2 MR10 FG H1 H2 H3 FU1 3 15A R2T BLK 1 2 S32 M1S BLU OR...

Page 137: ...it breaker Protective earth Connection Protective earth screw Connector A Rectifier Earth Relay connector Field wiring Short circuit connector Fuse Terminal INDOOR Indoor unit Terminal strip OUTDOOR O...

Page 138: ...ent power module K R KCR KFR KHuR K M Magnetic relay L Live L Coil L R Reactor M Stepper motor M C Compressor motor M F Fan motor M P Drain pump motor M S Swing motor MR MRCW MRM MRN Magnetic relay N...

Page 139: ...ure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector switch SHEET METAL Terminal strip fixed plate T R Transformer TC TRC...

Page 140: ...in the technical data book 3D135053A CONDENSER DISCHARGE BLU RED 5 1 WHT YLW ORG M1F MS 3 RED YLW BLU 3 15A FU2 PS C405 IPM2 HR2 ORG HR1 C2 K30R ZF C1 V3 C1 GRN W V U 5 3 FIELD WIRING Indoor DB1 A1P...

Page 141: ...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 e M1F R2T 6 4 CuT...

Page 142: ...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 outdoor air R2T Thermistor...

Page 143: ...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 exchanger R3...

Page 144: ...Q25 35AMV1B Split Sensira R32 BBOP ESIE21 16 2022 02 6 4 Component overview 6 4 1 Component overview Indoor unit a d e f h g b c a Heat exchanger b Fan motor c Heat exchanger thermistor R2T d Swing fl...

Page 145: ...rview Outdoor unit i j h k l a b c d e f g h m n o a Heat exchanger i Main inverter PCB A1P b Expansion valve Y1E j Reactor L1R c Muffler with filter k Accumulator d Heat exchanger thermistor R2T l Mu...

Page 146: ...6 Technical data Service manual 146 RXQ25 35AMV1B ARXQ25 35AMV1B FTXQ25 35AMV1B ATXQ25 35AMV1B Split Sensira R32 BBOP ESIE21 16 2022 02 6 5 Field information report See next page...

Page 147: ...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 148: ...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 149: ...vailable service 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...

Page 150: ...ing remote controllers and perform as described below ARC480A11 ARC480A53 ARC466A33 ARC466A58 ARC466A67 Using remote controller ARC480A11 or ARC480A53 1 Press and simultaneously 2 Press 3 Select SU 4...

Page 151: ...jumper J6 on 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 dro...

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