Daikin BPMKS967B2B Service Manual Download

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SiENBE18-621

Troubleshooting for Outdoor Unit

Troubleshooting

307

7. Troubleshooting for Outdoor Unit

7.1

Faulty Outdoor Unit PCB

Remote Control
Display

Applicable
Models

AII outdoor unit models

Method of
Malfunction
Detection

Check data from E

PROM

Malfunction
Decision
Conditions

When data could not be correctly received from the E

PROM

PROM : Type of nonvolatile memory. Maintains memory contents even when the power

supply is turned off.

Supposed
Causes

Defect of outdoor unit PCB (A1P)

Troubleshooting

rn off the power once

rn on

in.

Ret

rn to norm

Caution

re to t

rn off power

witch

efore connect or di

connect connector,

or p

ge m

e occ

rred.

Extern

l f

ctor other th

nction (for ex

mple,

noi

e etc.).

Repl

ce the o

tdoor

nit

in PC Bo

rd (A1P).

064)

Summary of Contents for BPMKS967B2B

Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...

Page 2: ...BAVMB FFQ35B8V1B FTXS35D3VMW L FDXS50CVMB FLXS50BAVMB FFQ50B8V1B FTXS50D2V1W L FDXS60CVMB FLXS60BAVMB FFQ60B8V1B FTXS20CAVMB FDXS25EAVMB FVXS25BAVMB FHQ35BVV1B FTXS25CAVMB FDXS35EAVMB FVXS35BAVMB FHQ5...

Page 3: ...d Type 37 1 7 Floor Ceiling Suspended Dual Type 39 1 8 Floor Standing Type 42 1 9 Ceiling Mounted Cassette 600 600 Type 45 1 10 Ceiling Suspended Type 47 Part 4 Refrigerant Circuit 49 1 Refrigerant Ci...

Page 4: ...ls 85 7 1 Power Airflow Dual Flaps Wide Angle Louvers and Auto Swing 85 7 2 Fan Speed Control for Indoor Units 86 7 3 Programme Dry Function 87 7 4 Automatic Operation 88 7 5 Thermostat Control 89 7 6...

Page 5: ...ror Codes and LED Indication 263 2 6 Malfunction Code Indication by Outdoor Unit PCB 264 3 List of Malfunction Code 268 4 Troubleshooting for RA Indoor Unit 270 4 1 Indoor Unit PCB Abnormality 270 4 2...

Page 6: ...ressure Sensor 324 7 16 Malfunction of Low Pressure Sensor 325 7 17 Malfunction of PCB 326 7 18 Malfunction of Inverter Radiating Fin Temperature Rise 327 7 19 Inverter Compressor Abnormal 328 7 20 In...

Page 7: ...Pressure Sensor 357 11 Method of Replacing The Inverter s Power Transistors Modules 358 Part 9 Appendix 361 1 Piping Diagrams 362 1 1 Outdoor Units 362 1 2 BP Units 363 1 3 Indoor Units 364 2 Wiring D...

Page 8: ...socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to...

Page 9: ...Use the welder in a well ventilated place Using the welder in an enclosed room can cause oxygen deficiency Warning Be sure to use parts listed in the service parts list of the applicable model and app...

Page 10: ...ks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair work mus...

Page 11: ...and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistanc...

Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...

Page 13: ...Set Mode Comfort Airflow Mode Worry Free Reliability Durability Auto Restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error...

Page 14: ...t Airflow Mode 72 Hour On Off Timer 3 Step Airflow H P Only Night Set Mode Comfort Control Auto Fan Speed Worry Free Reliability Durability Auto Restart after Power Failure Indoor Unit Silent Operatio...

Page 15: ...irflow Night Set Mode Comfort Airflow Mode Worry Free Reliability Durability Auto Restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed...

Page 16: ...after Power Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check 3 Step Airflow H P Only Anticorrosion Treatment of Outdoor Heat Exchanger Co...

Page 17: ...Airflow Night Set Mode Comfort Airflow Mode Worry Free Reliability Durability Auto Restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed...

Page 18: ...t Set Mode Comfort Airflow Mode Worry Free Reliability Durability Auto Restart after Power Failure 3 Step Airflow H P Only Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Erro...

Page 19: ...List of Functions SiENBE18 621 8 List of Functions...

Page 20: ...SiENBE18 621 Specifications 9 Part 2 Specifications 1 Specifications 10 1 1 Outdoor Units 10 1 2 BP Unit 11 1 3 Indoor Units 12...

Page 21: ...low Rate H Cooling m min cfm 106 3 742 Heating m min cfm 106 3 742 Fan Type Propeller Motor Output W 70 70 Running Current A 0 4 0 4 Power Consumption W 88 88 Starting Current A 19 2 23 7 25 2 Dimensi...

Page 22: ...738 427 Machine Weight kg 7 5 8 Gross Weight kg 11 12 Number of Wiring Connections 4 for Interunit Wiring Piping Connection Brazing Liquid mm Main 9 5 1 Branch 6 4 2 Main 9 5 1 Branch 6 4 3 Gas mm Ma...

Page 23: ...and Gas Pipes Piping Connection Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D051085 3D051086 Model FTXS25D3VMW FTXS25D3VML Cooling Heating Cooling Heating Rated Capacity 2 5kW Cla...

Page 24: ...Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D051089 3D051090 Model FTXS50D2V1W FTXS50D2V1L Cooling Heating Cooling Heating Rated Capacity 5 0kW Class 5 0kW Class Front Panel Color...

Page 25: ...Connection Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D050941 3D050943 Model FTXS35CAVMB FTXS50EV1B Cooling Heating Cooling Heating Rated Capacity 3 5kW Class 5 0kW Class Front Pa...

Page 26: ...7 Operation Sound H M L SL dBA 45 41 36 33 44 40 35 32 46 42 37 34 46 42 37 34 Sound Power H dBA 61 60 63 63 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liqui...

Page 27: ...35 33 31 29 35 33 31 29 External Static Pressure Pa 40 40 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm VP20 O D 26 I...

Page 28: ...Fan Sirocco Fan Motor Output W 62 62 Speed Steps 5 Steps Silent Auto 5 Steps Silent Auto Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 48 0 48 0...

Page 29: ...Pipes Piping Connection Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D050866 3D050868 Model FLXS50BAVMB FLXS60BAVMB Cooling Heating Cooling Heating Rated Capacity 5 0kW Class 6 0kW...

Page 30: ...ight kg 19 19 Operation Sound H M L SL dBA 38 32 26 23 38 32 26 23 39 33 27 24 39 34 29 26 Sound Power H dBA 54 55 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection...

Page 31: ...ping Connection Liquid mm 6 4 6 4 Gas mm 9 5 9 5 Drain mm VP20 O D 26 I D 20 VP20 O D 26 I D 20 Drawing No 3D040445 3D040443 Model FFQ50B8V1B FFQ60B8V1B Cooling Heating Cooling Heating Rated Capacity...

Page 32: ...ownward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control...

Page 33: ...Specifications SiENBE18 621 22 Specifications...

Page 34: ...oor Unit RMXS 112 140 160 E7V3B 24 1 2 Branch Provider Unit 29 1 3 Wall Mounted Type 20 25 35 50 Class D Series 30 1 4 Wall Mounted Type 20 25 35 Class C Series 33 1 5 Wall Mounted Type 50 60 71 Class...

Page 35: ...ve Main 8 X22A Connector for Electronic Expansion Valve Sub Cool 9 X25A Connector for Y1S Four Way Valve 10 X26A Connector for Y2S Hot Gas Bypass Valve 11 X27A Connector for Y3S Unload 12 X28A Connect...

Page 36: ...Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram and Name 25 PCB Detail LC NC LE N P X111A F6U X107A X106A HBP X66A X37A X81A X5A X22A X21A X13A X11A X12A X18A X17A X32A HAP X2...

Page 37: ...g Diagram and Name 1 1 2 Service PCB A2P Connectors 1 X205A Connector for Main PCB A1P Note Other Designation 1 H1P to H8P Service Monitor LED 2 BS1 to BS5 Push Button Switch Mode Set Return Test Rese...

Page 38: ...Circuit Board Connector Wiring Diagram and Name 27 1 1 3 Noise Filter PCB A3P Connectors 1 LA NA Terminal for X1M Power Supply 2 LB NB Terminal for Main PCB A1P 3 E Terminal for Earth Note Other Desi...

Page 39: ...ng Diagram SiENBE18 621 28 Printed Circuit Board Connector Wiring Diagram and Name 1 1 4 Cool Heat Selector PCB A4P Connectors 1 X1A Connector for Main PCB A1P Note Other Designation 1 X1M Cool Heat S...

Page 40: ...stors 1 F2U Fuse AC250V 3 15A 2 X3M Terminal for Inter Connecting Wire to Room A 3 X4M Terminal for Inter Connecting Wire to Room B 4 X5M Terminal for Inter Connecting Wire to Room C 5 F1 F2 on X6M Te...

Page 41: ...Connector for display PCB 5 S28 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S35 Connector for INTELLIGENT EYE sensor PCB 1 S29 Connector for control PCB 1 S27 Co...

Page 42: ...21 Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram and Name 31 PCB Detail PCB 1 Control PCB 20 25 35 class V1 S1 FU1 S6 L2 S26 S28 S32 JC JB JA LED A S35...

Page 43: ...621 32 Printed Circuit Board Connector Wiring Diagram and Name 50 class PCB 4 INTELLIGENT EYE sensor PCB V1 S1 Fu1 S6 S26 S28 S32 JC JB JA LED A S35 S21 R4288 PCB 2 Signal Receiver PCB PCB 3 Display P...

Page 44: ...ctor for centralized control to 5 rooms 5 S26 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S35 Connector for INTELLIGENT EYE Sensor PCB 1 S27 Connector for control...

Page 45: ...inted Circuit Board Connector Wiring Diagram and Name PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE Sensor PCB PCB 3 INTELLIGENT EYE sensor LED A Pb Free PCB 1 Control L...

Page 46: ...ntralized control HA 5 S26 Connector for buzzer PCB 6 S28 Connector for signal receiver PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for Intelligent Eye sensor PCB 1 S29 Connector...

Page 47: ...ector Wiring Diagram and Name PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 Buzzer PCB PCB 4 Display PCB PCB 5 Intelligent Eye sensor PCB S1 V1 FU1 S6 S8 S26 R2860 S28 S32 J...

Page 48: ...ntrol to 5 rooms 4 S26 Connector for display PCB 5 S32 Connector for heat exchanger thermistor 1 S1 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compre...

Page 49: ...ted Circuit Board Connector Wiring Diagram SiENBE18 621 38 Printed Circuit Board Connector Wiring Diagram and Name PCB Detail PCB 2 Display PCB WLU C2 C1 C3 PbF 2P084375 Pb Free SW1 LED1 RTH1 LED2 LED...

Page 50: ...Connector for display PCB 5 S26 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S37 Connector for power supply PCB 1 S36 Connector for control PCB 1 S25 Connector for...

Page 51: ...Printed Circuit Board Connector Wiring Diagram SiENBE18 621 40 Printed Circuit Board Connector Wiring Diagram and Name PCB Detail PCB 1 Control PCB PCB Detail PCB 2 Power Supply PCB...

Page 52: ...ircuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram and Name 41 PCB 3 Display PCB PCB 4 Signal Receiver PCB SW1 PbF PHOTO 2P084377 1 SW1 I RTH WLU 3 C1 C2 C3 EX511 REV...

Page 53: ...4 S31 S32 Connector for room temperature heat exchanger thermistor 5 S7 S201 S203 Connector for power supply PCB 6 S25 Connector for Signal receiver PCB 7 S301 S302 Connector for DC fan motors 1 S26 C...

Page 54: ...SiENBE18 621 Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram and Name 43 PCB Detail PCB 1 Power Supply PCB...

Page 55: ...Circuit Board Connector Wiring Diagram SiENBE18 621 44 Printed Circuit Board Connector Wiring Diagram and Name PCB Detail PCB 2 Control PCB PCB 3 Display PCB PCB 4 Signal Receiver PCB Pb Free Pb Free...

Page 56: ...A Connector for Room Temperature Thermistor 6 X20A Connector for Fan Motor 7 X24A Connector for Infrared Remote Control Receiver Unit 8 X25A Connector for Drain Pump Motor 9 X27A Connector for Termina...

Page 57: ...iring Diagram SiENBE18 621 46 Printed Circuit Board Connector Wiring Diagram and Name PCB Detail X25A X18A X61A X36A X17A X15A HAP Service monitor LED Capacity setting adaptor X5A X35A X24A X60A X19A...

Page 58: ...istor 1 6 X19A Connector for Room Temperature Thermistor 7 X20A X26A Connector for Fan Motor 8 X24A Connector for Infrared Remote Control Receiver Unit 9 X25A Connector for Drain Pump Motor Optional A...

Page 59: ...iagram SiENBE18 621 48 Printed Circuit Board Connector Wiring Diagram and Name PCB Detail Capacity setting adaptor X18A X40A X15A X19A X17A X14A X61A X33A X27A X20A X35A X60A X5A X24A X26A X29A X25A H...

Page 60: ...cuit 50 1 1 Outdoor Units 50 1 2 BP Units 52 2 Functional Parts Layout 53 2 1 Outdoor Units 53 3 Refrigerant Flow for Each Operation Mode 54 3 1 Cooling Operation 54 3 2 Heating Operation 55 3 3 Cooli...

Page 61: ...witch is activated at high pressure of 4 0 MPa or more to stop the compressor operation S Fusible plug In order to prevent the increase of pressure when abnormal heating is caused by fire or others th...

Page 62: ...Filter Filter Filter Filter Filter Heat exchanger Pressure regulating valve Service port Service port Compressor Four way valve High pressure sensor High pressure switch Solenoid valve Capillary tube...

Page 63: ...2 DLA DLC Thermistor Liquid pipe While in heating operation used to carry out the indoor unit SC control 3 R1T Thermistor Room temp Used to detect room air temperature and instructs the capacity supp...

Page 64: ...olenoid valve Pressure sensor high 4 way valve Thermistor suction 1 Thermistor suction 2 Pressure sensor low Solenoid valve Pressure switch Electronic expansion valve Electronic expansion valve Thermi...

Page 65: ...EXPANSION VALVE ROOM A ELECTRONIC EXPANSION VALVE ROOM A ELECTRONIC EXPANSION VALVE ROOM B ELECTRONIC EXPANSION VALVE ROOM B FILTER FILTER FILTER FILTER FILTER FILTER FILTER FILTER OIL SEPARATOR FILT...

Page 66: ...ANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR GAS SIDE THERMISTOR DGA GAS SIDE THERMISTOR DGB ELECTRONIC EXPANSION VALVE ROOM A ELECTRONIC EXPANSION VA...

Page 67: ...AT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR GAS SIDE THERMISTOR DGA GAS SIDE THERMISTOR DGB ELECTRONIC EXPANSION VALVE ROOM A ELECTRONIC EXPAN...

Page 68: ...ERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR GAS SIDE THERMISTOR DGA GAS SIDE THERMISTOR DGB ELECTRONIC EXPANSION VALVE ROOM A ELECT...

Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...

Page 70: ...tion Prevention Control 78 5 Other Control 79 5 1 Demand Operation 79 5 2 Heating Operation Prohibition 79 6 BP Unit Control 80 6 1 BP Unit Command Conversion 80 6 2 BP Unit Electronic Expansion Valve...

Page 71: ...et Operation mode change Pressure equalization prior to startup Startup control Cooling startup control Heating startup control Electronic expansion valve PI control Indoor unit stop or thermostat OFF...

Page 72: ...Four way valve OFF Main electronic expansion valve EV1 480 pls Subcooling electronic expansion valve EV3 PI control Hot gas bypass valve SVP OFF This valve turns on with low pressure protection contro...

Page 73: ...13 Controls compressor capacity to adjust Tc to achieve target value TcS Tc High pressure equivalent saturation temperature C TcS initial value TcS Target Tc value Varies depending on Tc setting oper...

Page 74: ...Down control When the down command come from all indoor units among thermostat ON indoor units Keep control Except for the above About detail of D signal refer to P80 Cooling Operation TeS TeS initial...

Page 75: ...on value by D signal in heating Q0397 During compressor frequency PI control KTe2 0 Not during compressor frequency PI control Keep the current KTe2 D control KTe2 KTe2 0 5 KTe2 KTe2 0 5 Up control by...

Page 76: ...ing on the discharge pipe superheated degree of inverter compressor Subcooling Electronic Expansion Valve EV3 Control Makes PI control of the electronic expansion valve Y3E to keep the superheated deg...

Page 77: ...run in Step 5 or higher When outdoor temperature 12 C it will run in Step 1 or higher 850rpm 715rpm 580rpm 445rpm 360rpm 285rpm 400rpm 250rpm 0 rpm M1F 815rpm 680rpm 545rpm 410rpm 325rpm 250rpm 0 rpm...

Page 78: ...Pc Pe 0 39MPa is achieved Outdoor unit fan STEP7 Ta 20 C OFF Ta 20 C STEP4 1 step 15 sec when Pc 2 16MPa 1 step 15 sec when Pc 1 77MPa Four way valve 20S1 Holds OFF OFF Main electronic expansion valve...

Page 79: ...tion operation Oil return operation Post oil return operation Compressor Take the current step as the upper limit 52 Hz Full load Low pressure constant control Same as the oil return operation mode Ou...

Page 80: ...to reduce noise on changing of the four way valve Outdoor Unit Actuator Oil return preparation operation Oil return operation Post oil return operation Compressor Upper limit control 124 Hz Full load...

Page 81: ...e operation after defrost the compressor stops for 2 min to reduce noise on changing of the four way valve Outdoor unit actuator Defrost preparation operation Defrost operation Post Defrost operation...

Page 82: ...idual operation Step 1 Pump down residual operation Step 2 Compressor 124 Hz Full load 52 Hz Full load Outdoor unit fan Fan control Fan control Four way valve OFF OFF Main electronic expansion valve E...

Page 83: ...is cleared up 3 6 1 When System is in Stop Mode Actuator Operation Compressor OFF Outdoor unit fan OFF Four way valve Keep former condition Main electronic expansion valve EV1 0 pls Subcooling electr...

Page 84: ...e sensor detection value INV upper limit frequency 3 step down from current compressor frequency When occurring 10 times within 60 minutes HPS is activated without high pressure standby thus outputtin...

Page 85: ...ssure limited When occurring 3 times within 30 min the malfunction code E4 is output Low pressure standby Ts Teg 8deg Pe 0 06MPa Pe 0 09MPa or After 10 sec Pe 0 17MPa Pe 0 17MPa Pe 0 20MPa Pe 0 07MPa...

Page 86: ...ted with outdoor air temperature Tp Value of compressor port temperature calculated by Tc and Te and suction superheated degree HTdi 115 C Tp 135 C Discharge pipe protection control not limited INV up...

Page 87: ...urrent 23 8A continues for 3 min Status quo Without conditions When occurring 4 times within 60 min the malfunction code L8 is output Inverter current 24 9A continues for 260 sec Inverter current 23 8...

Page 88: ...based on the freeze prevention status signal sent from the BP unit Indoor unit and the freeze prevention control prevents freezing of the indoor unit Recovery zone Lift the control Increase zone 1 st...

Page 89: ...based on the dew condensation prevention status signal sent from the BP unit Indoor unit and the dew condensation prevention control prevents dew condensation of the indoor unit Recovery zone Lift th...

Page 90: ...te the unit with this mode additional setting of Continuous Demand Setting or external input by external control adapter is required Demand 1 setting 5 2 Heating Operation Prohibition Heating operatio...

Page 91: ...ands excludes when Powerful function is in operation 2 Processing during Powerful operation mode 1 When Powerful command is received from indoor units one or more units 2 Thermostats are not OFF in ro...

Page 92: ...A DA pls DA room temperature DOA outdoor air temperature During Heating Operation Target EV opening 350 pls 6 2 2 Electronic Expansion Valve Flow Rate Restriction This function prevents the deviation...

Page 93: ...amber sets the electronic expansion valve pulse to 0 4 Stops transmission of electronic expansion valve initialization signal when EVH retightening is completed 6 2 4 Control Based on EV Opening Comma...

Page 94: ...room unit When SH is lower than target value Closes the valve of that room unit When the liquid pipe temperature is lower than the heat exchanger temperature the electronic expansion valve is opened m...

Page 95: ...n This function ensures appropriate refrigerant distribution when room units are operating in the heating mode It prevents abnormal increase of the high pressure and operation with gas shortage due to...

Page 96: ...dry and fan 3 D Airflow FTXS50 71D FTXS71B Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room This function is effective for starting t...

Page 97: ...ing defrost operation Automatic Air Flow Control for Heating The following drawing explains the principle for fan speed control for heating Automatic Air Flow Control for Cooling The following drawing...

Page 98: ...t by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Room...

Page 99: ...ting temperature plus correction value correction value cooling 0 deg heating 2 deg 3 Operation ON OFF point and mode switching point are as follows 1 Heating Cooling switching point Room temperature...

Page 100: ...erence is above the zone C after being in the zone A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the...

Page 101: ...heating for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity Cooling Operation...

Page 102: ...emote control by pushing the ECONO button When this function is ON the maximum capacity is also down Approx 20 This function can only be set when the unit is running Pressing the operation stop button...

Page 103: ...computer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature sifted 2 C from the set temperature Cooling 2 C higher Dry 1 C hi...

Page 104: ...so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperature...

Page 105: ...becomes effective The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote control Th...

Page 106: ...ty minutes In case of FTXS20 50D Ex Powerful operation in cooling mode Operation mode Fan speed Target set temperature COOL H tap 50 rpm 18 C DRY Dry rotating speed 50 rpm Normally targeted temperatur...

Page 107: ...when the remote control is missing The operation mode refers to the following table In the case of multi system operation there are times when the unit does not activate with this button 7 11 4 Titan...

Page 108: ...s performed 7 11 8 Mold Proof Air Filter The filter net is treated with mold resisting agent TBZ harmless colorless and odorless Due to this treatment the amount of mold growth is much smaller than th...

Page 109: ...nction Program Dry Fan Operation Drain Pump Control Heating Overload Control Defrosting Indoor Unit Fan Control Phase control Flap Control Fan Motor Drain Pump Optional for FHQ Wireless units only Fla...

Page 110: ...31W Electronic control unit 2P095006 8 EC0608 Fan motor 3P104408 1 4P 55W Fan motor capacitor 4 F 440VAC Float switch 4P104167 1 FS 0211B Drain pump 3P103929 1 PLD 12230DM 17 Capacity 35 50 60 Remarks...

Page 111: ...during cooling operation under low outside air temperature For details see the section on cooling operation under low outside air temperature Set temperature Initial setting Cooling thermostat ON Coo...

Page 112: ...dry auto heat Drain Pump Control FFQ and FHQ OPTION After continuous 30 minutes of operation with downward horizontal blade position change the blade position to level and after one hour the unit ope...

Page 113: ...operation 1 5min 5min Compressor ON OFF Drain pan Water level abnormality Normal Drain pump ON OFF Error processing Abnormal Normal 2 3 After compressor stops due to water level abnormality drain pump...

Page 114: ...ty Normal Drain pump ON OFF 5min Intermittent operation 1 2 3 After compressor stops due to water level abnormality drain pump is operated intermittenly i e 5 min ON 5 sec OFF and 5 min ON 1 The inter...

Page 115: ...level abnormality 5 3 sec min A 10 sec sec Compressor starts operation after 2 minutes from remote control ON When 3 min standby of compressor is complete 5min 5min Intermittent operation 1 Drain pan...

Page 116: ...emote control group control is applied Excluding simultaneous ON OFF operation 3 When conditions relating set temperature with remote control and suction air temperature are out of the operating zone...

Page 117: ...tenance and the power supply is to be shut off be sure to turn the remote control s ON OFF switch OFF first Shutting the power supply switch off while the ON OFF switch is still ON is dangerous becaus...

Page 118: ...Setting LL Horizontal Set Position Stop Error In Swing Operation OFF Horizontal In Airflow Direction Setting OFF Horizontal Overload Thermostat OFF In Swing Operation LL Horizontal Swing In Airflow D...

Page 119: ...nit can be operated as follows Operational The unit for another room is switched into non operational condition Non operational Operation of the indoor unit for the own room during non operation Fan O...

Page 120: ...e if casing temperature is below dew point dew gets condensed In order to prevent the dew condensation this control is used to operate the fan for a specified period of time thus discharging the moist...

Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...

Page 122: ...tting Mode 127 4 Field Setting for SkyAir Indoor Unit 136 4 1 Explanation 136 4 2 Field Setting 137 4 3 Initial Setting Contents 138 4 4 Local Setting Mode Number 139 4 5 Detailed Explanation of Setti...

Page 123: ...ter for other circuits than 200 230V circuit Are the setscrews of wiring not loose Is the electrical component box covered with an insulation cover completely Is pipe size proper The design pressure o...

Page 124: ...y the DIP switch DS2 settings on the BP unit s PCB in the following way With the system set up power on both the outdoor unit and BP unit The compressor is in a non startup condition Example thermosta...

Page 125: ...o of Indoor Unit Has Been Changed or Indoor BP or Outdoor Unit PC Board Has Been Changed or the System is transferred Be sure to push and hold the RESET button for 5 seconds If not the addition cannot...

Page 126: ...p valves in the outdoor unit remain closed Open the stop valve on both the gas side and liquid side The operation mode on the remote control was changed before the check run Set the operating mode on...

Page 127: ...Confirm that the indoor outdoor units can be operated normally When an abnormal noise due to liquid compression by the compressor can be heard stop the unit immediately and turn on the crankcase heate...

Page 128: ...dicates the status at factory set DIP switches DS1 1 and DS1 2 Cover this range with an insulating sheet Curing range Control box Reactor Turn off Turn on Turn on or off Flicker Sets the address again...

Page 129: ...ry set DS1 2 ON Not used Do not change the factory settings OFF Factory set A B C A B C A4P A2P OUT IN ON OFF DS1 1 2 Cool heat selector connection procedure Cool heat selector DS1 1 switch knob C H S...

Page 130: ...etting Please Attach the Capacity Setting Adapter corresponding to Capacity Class ex 112 140 160 in connector X51A See Below Capacity Setting Adapter Capacity Class 4 112 5 140 6 160 CAPACITY SETTING...

Page 131: ...T BS3 RETURN BS4 TEST BS5 RESET V2760 H1P MODE MODE Off H1P MODE On H1P V2761 Push and hold the BS1 MODE button for 5 seconds Setting mode 2 Push the BS1 MODE button one time Normal Setting mode 1 Mon...

Page 132: ...MODE BS1 button to set the system to Setting mode 1 Normally Setting mode 1 is set In case of other status push MODE BS1 button one time and set to Setting mode 1 Check the system for each condition...

Page 133: ...me low noise operation start setting Sets starting time of nighttime low noise operation Night time low noise setting is also required 27 Night time low noise operation end setting Sets ending time of...

Page 134: ...Tc setting 8 7 7 8 7 7 8 High 8777877 Normal factory setting 8777787 Low 8777778 10 Defrost changeover setting 8 7 7 8 7 8 7 Quick defrost 8777877 Normal factory setting 8777787 Slow defrost 8777778 1...

Page 135: ...r lower 8777877 26 Night time low noise operation start setting 8 7 8 8 7 8 7 About 20 00 8777778 About 22 00 factory setting 8777787 About 24 00 8777877 27 Night time low noise operation end setting...

Page 136: ...de table Refer page 268 15 Contents of malfunction 1 cycle before 8 7 7 8 8 8 8 16 Contents of malfunction 2 cycle before 8 7 8 7 7 7 7 20 Contents of retry the latest 8 7 8 7 8 7 7 21 Contents of ret...

Page 137: ...er which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 and 13 is expressed as an 8 digit binary number which is the combination of fou...

Page 138: ...ating operation mode In the case of wired remote controls After the check operation CHANGEOVER UNDER CONTROL is flashing in all connected remote controls Select an indoor unit to be used as the master...

Page 139: ...tdoor unit wiring Set outdoor unit PC board DS1 1 to OUT factory set Set cool heat switching to IND individual for Setting mode 1 factory set I O O O O A B C F1 F1 F2 F2 F1 F2 Q1 Q2 I H1P H2P H3P H4P...

Page 140: ...oise operation Use the end time as a guide since it is estimated according to outdoor temperatures 4 If necessary while in Setting mode 2 set the setting condition for set item No 29 Setting of capaci...

Page 141: ...select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode Image of operation Set item Condition Content Demand Mode 1 The compressor operates at approx 60...

Page 142: ...H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match the LED display with the Setting...

Page 143: ...ory setting Mode 1 9 Mode 2 9 Mode 3 9 9 26 Night time low noise start setting PM 8 00 9 PM 10 00 Factory setting 9 PM 0 00 9 27 Night time low noise end setting AM 6 00 9 AM 7 00 9 AM 8 00 Factory se...

Page 144: ...e refrigerant In the stopped status set to ON the refrigerant additional charging operation A in set mode 2 H1P Turn on The operation is automatically started The LED indicator H2P flickers and Test r...

Page 145: ...eration Collect the refrigerant using a refrigerant recovery unit See the instruction attached to the refrigerant recovery unit for more detal Press Mode button BS1 once and reset Setting Mode 2 3 2 5...

Page 146: ...gree of electronic expansion valve Unit stopping Press the TEST button for 5 seconds 10 sec to 10 minutes LED display H1P H7P 8 ON 3 OFF 9 BLINK 3383333 3933338 Pressure equalizing Step 1 20 sec to 2...

Page 147: ...ed out from the remote control At time of installation or after maintenance inspection repair carry out field set according to the explanation below Incorrect settings will cause a malfunction to occu...

Page 148: ...desired MODE NO with the button Push the upper button and select FIRST CODE NO Push the lower button and select the SECOND CODE NO Push the button once and the present settings are SET Push the button...

Page 149: ...4 Push the button and select the SECOND CODE NO 5 Push the button and the present settings are SET 6 Push the button to return to the NORMAL MODE 4 3 Initial Setting Contents MODE NO FIELD SET MODE S...

Page 150: ...rt operating when the power supply is turned on 5 Do not set any items other than those listed in the above table 6 Functions that indoor units are not equipped with will not be displayed 7 When retur...

Page 151: ...ow direction setting according to the respective purpose 4 5 4 Fan Speed OFF When Thermostat is OFF FFQ FHQ When the cool heat thermostat is OFF you can stop the indoor unit fan by switching the setti...

Page 152: ...et the addresses for the receiver and infrared remote control For group control see the attached installation manual for the indoor unit If using together with a wired remote control you have to chang...

Page 153: ...he setting 5 Hold down the button for at least 1 second to quit the FIELD SET MODE and return to the normal display Multiple Settings A b When the indoor is being operating by outside control central...

Page 154: ...oration panel air discharge outlet as well as on the back of the infrared remote control PRECAUTIONS Set the Unit No of the receiver and the infrared remote control to be equal If the settings differ...

Page 155: ...button set the group No for each group Group No rises in the order of 1 00 1 01 1 15 2 00 4 15 etc The unified ON OFF controller however displays only the range of group numbers selected by the switch...

Page 156: ...e reset because the count is updated each time a malfunction occurs Mode No Function Content and Operation Method Example of Remote Control Display 40 Malfunction Hysteresis You can change the history...

Page 157: ...for 3 minutes after it is turned off Trial Operation and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cool...

Page 158: ...on the control PCB infrared remote control 1 Slide the front cover and take it off 2 Cut the address jumper J4 5 2 2 Jumper Setting R4417 ADDRESS JA ADDRESS JA EXIST 1 CUT 2 ADDRESS J4 EXIST CUT 1 2...

Page 159: ...lide the sensor to adjust the angle Aim so that the sensor is pointing to the center of the room or to the part of the room that is most frequently used After adjusting the angle gently wipe the senso...

Page 160: ...System Configuration 1 System Configuration 150 1 1 Operation Instructions 150 2 Instruction 151 2 1 RMXS Series 151 2 2 Wall Mounted Duct Floor Ceiling Floor Standing Type 152 2 3 Ceiling Mounted Cas...

Page 161: ...d to know a clever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing Howe...

Page 162: ...protection Operating noise At startup During startup in order to emit warm or cool air as quickly as possible the sound of refrigerant flowing will be heard for a short time 1 to 2 minutes from the o...

Page 163: ...System 201 201 201 Care Care and Cleaning 203 206 209 Trouble Shooting Trouble Shooting 222 222 222 Drawing No 3P142629 1C 3P170835 4 3P119293 2L 3P170835 1A 3P098586 1J Model Series Duct Connected Ty...

Page 164: ...reinstallation consult your Daikin dealer for advice and information The refrigerant used in the air conditioner is safe Although leaks should not occur if for some reason any refrigerant happens to l...

Page 165: ...use check the unit stand and fittings for damage Do not touch the air inlet and aluminum fins of outdoor unit It may cause injury The appliance is not intended for use by young children or infirm pers...

Page 166: ...SiENBE18 621 Instruction System Configuration 155 2 2 3 Names of Parts FTXS 20 25 35 50 D Indoor Unit ON OFF 16 14 13 15 12 1 3 4 5 7 9 10 11 8 6 2...

Page 167: ...de of the air outlet 12 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the re...

Page 168: ...gain to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 SILENT button OUTDOOR UNIT SILENToperation 9 FAN setting button It selects the air flow rate setting 10 SW...

Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...

Page 170: ...switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote control is missing 13 Operation lamp...

Page 171: ...PERATURE adjustment buttons It changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mod...

Page 172: ...SiENBE18 621 Instruction System Configuration 161 FTK X S 50 60 71 B FTXS 71 D Indoor Unit Main unit control panel 7 14 11 12 13 4 3 1 2 9 10 8 6 5 16 15...

Page 173: ...12 TIMER lamp yellow 13 HOME LEAVE lamp red Lights up when you use HOME LEAVE Operation 14 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation...

Page 174: ...setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 SILENT button for OUTDOOR U...

Page 175: ...Instruction SiENBE18 621 164 System Configuration FDXS 25 35 50 C FDXS 25 35 E Indoor Unit 3 6 8 9 10 7 4 5...

Page 176: ...6 Room temperature sensor It senses the air temperature around the unit 7 Operation lamp green 8 TIMER lamp yellow 9 HOME LEAVE lamp red Lights up when you use HOME LEAVE operation 10 Indoor Unit ON O...

Page 177: ...changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 SIL...

Page 178: ...r to a wall The descriptions contained in this manual show the case when installation is being carried out to the ceiling The methods of operation use are the same when installing to a wall Opening th...

Page 179: ...hen you use HOME LEAVE Operation 13 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table Push the switch using...

Page 180: ...changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 OUT...

Page 181: ...he operation and turn the breaker OFF Do not touch the metal parts on the inside of the indoor unit as it may result in injury Air outlet selection switch This unit is shipped from the factory with th...

Page 182: ...OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote control is missing 13 Signal rece...

Page 183: ...nges the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 OUTDOOR...

Page 184: ...lace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote control display begins to fade or if re...

Page 185: ...the unit 2 Fix the holder to a wall a pillar etc with the screws supplied with the holder 3 Place the remote control in the remote control holder About remote control Never expose the remote control t...

Page 186: ...le in spring or autumn turn the breaker OFF Use the air conditioner in the following conditions Operation outside this humidity or temperature range may cause a safety device to disable the system Rec...

Page 187: ...vances the mode setting in sequence AUTO DRY COOL HEAT FAN F C TKS F C TXS 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off...

Page 188: ...parts of the room After the start of heating operation it takes some time before the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that ca...

Page 189: ...ion press SWING button once more The display will go blank The flaps will stop moving To adjust the vertical blades louvers Hold the knob and move the louvers You will find a knob on the left side and...

Page 190: ...ORT AIRFLOW mode disappears from the LCD POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time Priority is given to POWERFUL operation When SWING button is selected the flap...

Page 191: ...r flow direction to increase your comfort To adjust the horizontal blades flaps 1 Press SWING button is displayed on the LCD and the flaps will begin to swing 2 When the flap has reached the desired p...

Page 192: ...ge depends on the operation mode See the figure ATTENTION Always use a remote control to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may be br...

Page 193: ...ton is displayed on the LCD and the flaps begin to swing 2 When the flap has reached the desired position press SWING button once more The flap will stop moving disappears from the LCD To adjust the v...

Page 194: ...inging range depends on the operation mode See the figure Three Dimensional 3 D Airflow Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot a...

Page 195: ...fort To adjust the horizontal blade flap 1 Press SWING button is displayed on the LCD and the flaps begin to swing 2 When the flap has reached the desired position press SWING button once more The fla...

Page 196: ...selected you should set the flap at a near horizontal angle in COOL or DRY mode to obtain the best performance In COOL or DRY mode if the flap is fixed at a downward position the flap automatically m...

Page 197: ...sappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louvers You will find a knob on the left side and the right side blades Unless SWING is selected you should set t...

Page 198: ...tuation Do not try to adjust the flap by hand When adjusting by hand the mechanism may not operate properly or condensation may drip from air outlets Operating mode Situation Blowing pattern COOL mode...

Page 199: ...Notes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO SILENT or COMFORT Operation Priority is given to the function of whichever button ispressed last POWERFUL Operation c...

Page 200: ...T button disappears from the LCD Note on OUTDOOR UNIT SILENT operation If using a multi system this function will work only when the OUTDOOR UNIT SILENT operation is set on all operated indoor units H...

Page 201: ...causes the settings to be canceled and the disappears from the LCD ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit operating frequ...

Page 202: ...OME LEAVE operation When using HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate 1 Press...

Page 203: ...ings please refer to the Before using HOME LEAVE operation section above HOME LEAVE operation is only available in COOL and HEAT mode Cannot be used in AUTO DRY and FAN mode HOME LEAVE operation runs...

Page 204: ...operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD TEMP ON OFF POWERFUL MODE FAN SWING SILENT SENSOR EC...

Page 205: ...unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operati...

Page 206: ...To start INTELLIGENT EYE operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX When somebody in the ro...

Page 207: ...or may not detect moving objects further than 5m away Check the application range Sensor detection sensitivity changes according to indoor unit location the speed of passersby temperature range etc Th...

Page 208: ...ent To start INTELLIGENT EYE operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD 1 2 EX When somebody in...

Page 209: ...unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operati...

Page 210: ...ither button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp goes off When TIMER is set the p...

Page 211: ...tting by 10 minutes Holding down either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes...

Page 212: ...T QUIET Mode requires initial programming during installation Please consult your retailer or dealer for assistance NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night ti...

Page 213: ...nd D are all operating If the unit in Room A enters POWERFUL operation operation capacity will be concentrated in Room A In such a case the cooling heating efficiency of the units in Rooms B C and D m...

Page 214: ...panel with water dry it with cloth dry it up in the shade after washing 4 Attach the front panel Set the 2 keys of the front panel into the slots and push them in all the way Close the front panel sl...

Page 215: ...th neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filter The Titan...

Page 216: ...drain comes smoothly out of the drain hose during COOL or DRY operation If no drain water is seen water may be leaking from the indoor unit Stop operation and consult the service shop if this is the c...

Page 217: ...water dry it with cloth dry it up in the shade after washing 4 Attach the front panel Set the 3 keys of the front panel into the slots and push them in all the way Close the front panel slowly and pu...

Page 218: ...the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air purifying fi...

Page 219: ...n 2 After operation stops turn off the breaker for the room air conditioner 3 Clean the air filters and set them again 4 Take out batteries from the remote control When a multi outdoor unit is connect...

Page 220: ...n water Only neutral detergent may be used In case of washing the grille with water dry it with cloth dry it up in the shade after washing 4 Attach the front grille Align the rotation dowels on the le...

Page 221: ...cleaner If the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Tita...

Page 222: ...N operation Press ON OFF button and start operation 2 After operation stops turn off the breaker for the room air conditioner 3 Clean the air filters and set them again 4 Take out batteries from the r...

Page 223: ...air filter Remove dust from the air filter using a vacuum cleaner and gently rinse them in cool water Do not use detergent or hot water to avoid filter shrinking or deformation After cleaning dry the...

Page 224: ...d wastes energy The suction grille is option Do not use water or air of 50 C or higher for cleaning air filters and outside panels Check that the base stand and other fittings of the outdoor unit are...

Page 225: ...dust from the air filter using a vacuum cleaner and gently rinse them in cool water Do not use detergent or hot water to avoid filter shrinking or deformation After cleaning dry them in the shade 3 R...

Page 226: ...energy The suction grille is option Do not use water or air of 50 C or higher for cleaning air filters and outside panels Ask your DAIKIN dealer how to clean it Check that the base stand and other fi...

Page 227: ...up in the shade after washing 3 Close the front panel Push the panel at the 5 points indicated by Operation without air filters may result in troubles as dust will accumulate inside the indoor unit D...

Page 228: ...them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air Purifying Filter green Replace approximately once e...

Page 229: ...the heating operation is not used at the other room before you use the fan operation Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling...

Page 230: ...in the shade after washing 4 Attach the front panel Insert the front panel into the grooves of the unit 3 places Attach the chain to the right inner side of the front panel Close the panel slowly Hold...

Page 231: ...easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air Purifying Filter green Replace approxi...

Page 232: ...on Operation with dusty air filters lowers the cooling heating capacity and wastes energy Air is also prevented from flowing smaathly through the unit creating a noise Operation with dirty filters 1 c...

Page 233: ...am when the air conditioner is in defrost operation In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indoor unit...

Page 234: ...o block the air inlet or the outlet of the indoor and the outdoor units Clean the air filters or take all obstacles away and turn the breaker OFF Then turn it ON again and try operating the air condit...

Page 235: ...poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop where you bought the air...

Page 236: ...C9 FAULTY SUCTION AIR TEMPERATURE SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OPERATION HALT DUE TO DETECTION OF INPUT O...

Page 237: ...MPERATURE SWITCHBOX 5 1 1 1 4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK 5 1 1 4 1 OUTPUT OVERCURRENT 5 1 1 4 4 REFRIGERANT SHORTAGE 5 4 1 1 4 LOW VOLTAGE TO MAIN CIRCUIT OR MOMENTARY VOLTAGE LOSS...

Page 238: ...Instruction System Configuration 227 2 3 Ceiling Mounted Cassette Type 1 3 4 2 TEST C hr hr TEST NOT AVAILABLE L H 2 10 11 3 1 4 5 6 7 8 14 15 16 17 18 19 20 21 22 12 9 13 a b c d e e f g h i k e f l...

Page 239: ...up to 16 indoor units All indoor units are equally set Two remote controls control system Two remote controls control one indoor unit In case of group control sytem one group of indoor units The unit...

Page 240: ...centration an oxygen deficiency accident may happen For installation of separately sold component parts ask a specialist Be sure to use the separately sold component parts designated by our company In...

Page 241: ...rating electromagnetic waves h Filled with acid and or alkaline steam or vapor Is a snow protection measure taken For details consult your dealer Regarding wiring All wiring must be performed by an au...

Page 242: ...peration These are optional accessories DISPLAY OPERATION MODE DISPLAY TEST INSPECTION TEST OPERATION DISPLAY PROGRAMMED TIME DISPLAY SET TEMPERATURE DISPLAY FAN SPEED DISPLAY AIR FLOW FLAP Press the...

Page 243: ...refore it takes some time until the entire room is warmed up after the start of operation An indoor fan runs to discharge a gentle wind automatically until the temperature inside the air conditioner r...

Page 244: ...em after 4 hours the system will stop after 3 hours and then 1 hour later the system will start After the timer is programmed the display shows the remaining time Press the TIMER ON OFF button once ag...

Page 245: ...a vacuum cleaner A or wash the air filter with water B A Using a vacuum cleaner B Washing with water When the air filter is very dirty use soft brush and neutral detergent Remove water and dry in the...

Page 246: ...exterior Be sure to replace the air filter to its original place after cleaning Refer to Maintenance The following symptoms do not indicate air conditioner malfunction I The system does not operate T...

Page 247: ...or unit Ask your Daikin dealer for details on cleaning the unit This operation requires a qualified service person When the system is changed over to HEATING OPERATION after DEFROST OPERATION Moisture...

Page 248: ...lated Check if the air filter is clogged Ask a qualified service person to clean the air filters Refer to MAINTENANCE 3 The system operates but it does not sufficiently cool or heat If the air inlet o...

Page 249: ...on SiENBE18 621 238 System Configuration 2 4 Ceiling Suspended Type 1 1 3 4 2 C hr H 5 12 4 2 1 3 9 11 10 21 14 16 15 17 18 22 8 6 7 20 19 g e e f a k i h b d f e c j d d k C hr hr TEST TEST NOT AVAIL...

Page 250: ...up to 16 indoor units All indoor units are equally set Two remote controls control system Two remote controls control one indoor unit In case of group control sytem one group of indoor units The unit...

Page 251: ...may result in a failure a water leakage electric shock and fire Ask your dealer to move and reinstall the air conditioner Incomplete installation may result in a failure a water leakage electric shock...

Page 252: ...oil and vapor such as a cookery etc g Where there are machines generating electromagnetic waves h Filled with acid and or alkaline steam or vapor Is a snow protection measure taken For details consul...

Page 253: ...DER CENTRALIZED CONTROL DISPLAY VENTILATION AIR CLEANING This display shows that the total heat exchange and the air cleaning unit are in operation These are optional accessories DISPLAY OPERATION MOD...

Page 254: ...tes of DEFROST OPERATION the system returns to HEATING OPERATION Regarding outside air temperature and heating capacity The heating capacity of the air conditioner declines as the outside air temperat...

Page 255: ...mum of 72 hours The start and the stop time can be simultaneously programmed Timer mode START STOP Press the TIMER MODE START STOP button several times and select the mode on the display The display f...

Page 256: ...person to clean the filters Refer to MAINTENANCE Only a qualified service person is allowed to perform maintenance IMPORTANT Before obtaining access to terminal devices all power supply circuits must...

Page 257: ...move any obstacle Check if the earth is connected Might there be a broken wire somewhere Contact your dealer if there are any problems Clean the air filter and outside panels After cleaning the air fi...

Page 258: ...remote control Automatic swing setting does not work Refer to AIR FLOW DIRECTION ADJUST V White mist comes out of a unit When humidity is high during cooling operation In oily or dusty places If the i...

Page 259: ...air inlet or outlet of outdoor or indoor unit is blocked by abstacles Remove the obstacle and make it well ventilated Check if the air filter is clogged Ask a qualified service person to clean the air...

Page 260: ...oor Unit 276 4 5 Shutter Drive Motor Shutter Limit Switch Abnormality 277 4 6 Check 278 5 Troubleshooting for SkyAir Indoor Unit 281 5 1 Indoor Unit PCB Abnormality 281 5 2 Malfunction of Drain Water...

Page 261: ...9 7 21 Inverter Start up Error 330 7 22 Malfunction of Transmission between Inverter and Control PCB 331 7 23 High Voltage of Capacitor in Main Inverter Circuit 332 7 24 Malfunction of Inverter Radiat...

Page 262: ...her case conduct the diagnostic procedure described in the following pages Location of Operation Lamp In case of In case of FTXS 20 25 35 50 D Series FTXS 20 25 35 C Series In case of FTXS 50 60 71 E...

Page 263: ...y blinks entering INSPECTION mode 2 In the INSPECTION mode when the ON OFF button is pushed and held for 5 seconds or more the aforementioned malfunctioning history display is off In this case after t...

Page 264: ...green LED indicates normal equipment condition and the OFF condition of the orange LED indicates normal equipment condition Troubleshooting with the green LED The LED A green of the outdoor unit indic...

Page 265: ...ECK INTER UNIT WIRING ON MALFUNTION DETECTION IRRELEVANT NORMALLY OFF LED B GREEN ABNORMALITY CHECK INTER UNIT WIRING NOTES 1 TURN THE POWER OFF THEN ON AGAIN IF THE LED DISPLAY RECURS THE BRANCH PROV...

Page 266: ...o consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for...

Page 267: ...Press the TEMP button Press TEMPs or TEMPt and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound H pi The number of tens does not accord with the error code H pi pi T...

Page 268: ...y the sound H pi The both numbers of tens and units do not accord with the error code H pi pi The number of tens accords with the error code H beep The both numbers of tens and units accord with the e...

Page 269: ...uct a diagnosis of the outdoor unit A1 Indoor unit PCB abnormality 270 A5 Freeze up protection control or high pressure control heat pump model only 271 A6 Fan motor or related abnormality AC motor Wa...

Page 270: ...ction Others Local setting mode Service data can be obtained Malfunciton code history Temperature data of various sections Service settings can be made Forced fan ON Air flow direction volume setting...

Page 271: ...nd malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malf...

Page 272: ...ep 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication...

Page 273: ...rmal status 3 Press MODE selector button When MODE selector button is pressed or no button is pressed for 1 minute equipment returns to normal status If no button is pressed for 1 minute equipment ret...

Page 274: ...connected to this system 297 Indoor Unit LED Display H1P Remote Control Display Location of Malfunction Contents of Malfunction Details of Malfunction Reference Page Other than PC Board PC Board Outdo...

Page 275: ...f DC fan 2 motor lock Malfunction of electronic expansion valve EV1 E9 EV3 Faulty sensor of outdoor air temperature Faulty Ta sensor short H9 Abnormal discharge pipe temperature Abnormal Td F3 Abnorma...

Page 276: ...7 7 9 7 7 9 9 J3 9 7 9 9 7 9 7 7 9 9 9 7 7 7 7 9 7 7 1 J5 9 7 9 7 9 9 7 7 7 7 9 7 7 9 7 7 7 7 9 7 9 J6 9 7 9 9 7 9 7 7 7 7 9 7 7 J7 9 7 9 9 9 9 7 7 7 7 9 7 7 J9 9 9 7 7 9 9 7 7 7 7 9 7 7 JA 9 9 7 9 7...

Page 277: ...Contents of malfunction Malfunction code Open phase Power supply imbalance Imbalance of inverter power supply voltage P1 Faulty temperature sensor of inverter radiation fin Faulty thermistor of invert...

Page 278: ...7 9 7 7 9 9 U2 9 7 7 9 7 9 7 7 7 7 9 7 7 1 9 7 7 7 7 7 9 9 7 7 7 7 9 7 7 9 7 9 7 7 7 7 9 7 7 7 9 U3 9 7 7 9 9 9 7 7 7 7 9 7 7 9 9 9 7 7 7 7 9 7 9 9 9 U4 9 7 9 7 7 9 7 7 7 7 9 7 7 9 9 9 7 7 7 7 9 7 9 9...

Page 279: ...1 PC board defect E2 PROM defect 307 E2 Faulty BP unit PCB 301 E3 Actuation of high pressure switch 308 E4 Actuation of low pressure switch 310 E5 Compressor motor lock 312 E6 Standard compressor lock...

Page 280: ...U4 Malfunction of transmission between indoor and outdoor units etc 303 340 U5 Malfunction of transmission between remote control and indoor unit 295 342 U5 Failure of remote control PC board or setti...

Page 281: ...ulty connector connection Troubleshooting Note Connector Nos vary depending on models Control connector Connector connection check note YES Is it normal NO Correct connections Replace PCBs R1400 Cauti...

Page 282: ...operation according to the temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by...

Page 283: ...e dust accumulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO Provide sufficient...

Page 284: ...or of the fan motor Detection error due to faulty control PCB Troubleshooting Check No 16 Refer to P 280 Rotate the fan by hand Check No 16 Check Hall IC Operate the fan Does it rotate NO Does it rota...

Page 285: ...ine abnormal fan motor operation Malfunction Decision Conditions When the detected rotation speed is less than 50 of the H tap under maximum fan motor rotation demand Supposed Causes Operation halt du...

Page 286: ...Check output of fan motor connector Is motor power voltage DC 200V generated Is motor control power voltage DC 15V generated Turn off power supply and disconnect fan motor connector then turn power ON...

Page 287: ...ess than 120 ohms or below about 50 C more than 1 860 kohms Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check...

Page 288: ...by broken relay harness or disconnected connector Detection error due to defective PCB 2 Foreign substance in blow port Troubleshooting Check No 03 Refer to P 278 Turn off the power Check No 03 Check...

Page 289: ...pan assembly Check the continuity of the switch connection The shutter can be opened and closed with hand Keep the shutter open and closed all the way for each continuity check steps 7 6 5 4 3 2 1 8 7...

Page 290: ...n the PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20k B 3950 Te...

Page 291: ...ween pins 1 and 3 Generation of 3 pulses between pins 2 and 3 when the fan motor is operating Failure of 1 faulty PCB Replace the PCB Failure of 2 faulty hall IC Replace the fan motor Both 1 and 2 res...

Page 292: ...itions When data could not be correctly received from the E2 PROM E2PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Failure of PCB Tr...

Page 293: ...e Models FFQ B FHQ BU Method of Malfunction Detection By float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF Supposed C...

Page 294: ...n raising mechanism connected YES YES YES Does display of malfunction A3 appear YES YES 220 240 VAC YES NO Continuity check of short circuit connector Set to emergency and check the voltage of X25A If...

Page 295: ...switch Check to see if drain up height and horizontal pipe length exceed specifications Clogged drain water discharge system Clogged drain pump Faulty float switch Replace indoor unit PCB Check jumpe...

Page 296: ...ven when output voltage to the fan is maximum Supposed Causes Failure of indoor unit fan motor Broken or disconnected wire Failure of contact Failure of indoor unit PCB Troubleshooting With X26A unplu...

Page 297: ...m the fan motor Malfunction Decision Conditions When fan speed does not increase Supposed Causes Disconnection short circuit or disengagement of connector in fan motor harness Faulty fan motor disconn...

Page 298: ...it PCB CheCheck for the fan motor connector Turn off the power supply Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Q0414 Does the res...

Page 299: ...tion Detection Utilizes ON OFF of the limit switch when the motor turns Malfunction Decision Conditions When ON OFF of the microswitch for positioning cannot be reversed even though the swing flap mot...

Page 300: ...connected Does the swing flap motor swing Are the connectors correctly connected to X29A and X14A on the PC board NO YES YES NO YES Does continuity no continuity reverse YES 220 240 VAC NO NO YES NO T...

Page 301: ...acity setting adapter that matches the capacity of the unit is required in the following case If the indoor PCB installed at the factory is for some reason changed at the installation site the capacit...

Page 302: ...of the sensor itself Broken or disconnected wire Failure of electronic circuitry indoor unit PCB Failure of connector contact Troubleshooting Check No 02 Refer to P 299 Disconnect the heat exchanger...

Page 303: ...of the sensor itself Broken or disconnected wire Failure of electronic circuitry indoor unit PCB Failure of connector contact Troubleshooting Check No 02 Refer to P 299 Disconnect the heat exchange s...

Page 304: ...osed Causes Failure of the sensor itself Broken or disconnected wire Failure of indoor unit PCB Failure of connector contact Troubleshooting Check No 02 Refer to P 299 Disconnect the heat exchange sen...

Page 305: ...or Malfunction Decision Conditions When the remote control thermistor becomes disconnected or shorted while the unit is running Supposed Causes Failure of sensor itself Broken wire Troubleshooting Che...

Page 306: ...he power supply temporarily then restart operation Indoor unit PCB replacement Malfunction could be produced by noise Check the surrounding area and restart operation Change to double core independent...

Page 307: ...rror between Main remote control and Sub remote control Connection among Sub remote controls Faulty remote control PCB Troubleshooting Turn the SS 1switch of one remote control to Main Turn OFF the po...

Page 308: ...ES YES NO YES Are wirings between indoor and BP unit correctly connected NO NO Is 220 240 VAC between No 1 and 3 of X2M terminal indoor unit YES YES NO YES Is the remote control wiring jumped indoor u...

Page 309: ...wer Supply Line 1 Turn the power supply off With the relay connector disconnected measure the resistance between UVW phases of the connector 3 cores at the motor side then make sure that the resistanc...

Page 310: ...1 2 0 59 8 57 8 4 0 54 1 52 3 6 0 48 9 47 3 8 0 44 3 42 9 10 0 40 2 38 9 12 0 36 5 35 3 14 0 33 2 32 1 16 0 30 2 29 2 18 0 27 5 26 6 20 0 25 1 24 3 22 0 23 0 22 2 24 0 21 0 20 3 26 0 19 2 18 5 28 0 17...

Page 311: ...on valve Incorrect connectors connection of electronic expansion valve Troubleshooting Turn the power supply off once and then back on Keep using as it is Could be outside error other than malfunction...

Page 312: ...from the E2 PROM E2PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of BP unit PCB Troubleshooting Turn off the power once and...

Page 313: ...liquid or gas pipe temperature sensor Troubleshooting Temp Resistance 10 C 117k 0 C 67k 10 C 40k 20 C 25k 30 C 16k 40 C 10k 50 C 7k 60 C 5k 70 C 3k Replace thermistor or thermistor assembly If insuff...

Page 314: ...Malfunction Decision Conditions When the data sent from the BP unit cannot be received normally or when the content of the data is abnormal Supposed Causes Faulty BP unit PCB Faulty indoor unit PCB In...

Page 315: ...ltage of the indoor unit outdoor unit connection wires between No 1 and No 2 and between No 2 and No 3 YES YES NO Is there any disturbance NO Push and hold the RESET button on the outdoor unit PCB for...

Page 316: ...er supply wave Troubleshooting Check No 14 Refer to P 306 Turn the power supply off YES Check the transmission wire and the connection orders Replace outdoor unit control PCB Could be outside causes o...

Page 317: ...s Check Check No 14 Measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance Check to see if the power supply waveform is a sine wave Fig 1 Check...

Page 318: ...ld not be correctly received from the E2 PROM E2PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of outdoor unit PCB A1P Troubl...

Page 319: ...he high pressure protection switch opens Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode Reference Operating pressure...

Page 320: ...detected with the PCB normal See 2 The high pressure sensor is normal and the pressure detected with the PCB is also normal The high pressure has really become high Check No 01 Referring to informati...

Page 321: ...Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pre...

Page 322: ...s really become low Referring to information on page 349 remove the causes by which the low pressure has become low 1 Make a comparison between the voltage of the pressure sensor and that read by the...

Page 323: ...lock High differential pressure 0 5MPa or more Incorrect UVW wiring Faulty inverter PCB Stop valve is left in closed Troubleshooting Check the installation conditions Is the stop valve open NO Is the...

Page 324: ...nnector between fan motor and PCB is left in disconnected or faulty connector Fan does not run due to foreign matters tangled Clearing condition Operate for 5 minutes normal Troubleshooting Check No 0...

Page 325: ...ble Models AII outdoor unit models Method of Malfunction Detection Check disconnection of connector Check continuity of expansion valve coil Malfunction Decision Conditions Error is generated under no...

Page 326: ...mage may be occurred Return to normal Turn power supply off and turn power supply on again Electronic expansion valve is connected to X21A and X22A of outdoor unit PC board A1P Normal when coil check...

Page 327: ...lty connection of discharge pipe temperature sensor Faulty outdoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P355 V3068 Caution Be sure to turn off p...

Page 328: ...rcharge Misalignment of the thermistor for heat exchanger Defect of the thermistor for heat exchanger Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P355 V2797 Cau...

Page 329: ...open circuit Supposed Causes Defect of thermistor R1T for outdoor air Defect of outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P355 V3070 Caut...

Page 330: ...hermistor is detected Supposed Causes Defect of thermistor R2T for outdoor unit discharge pipe Defect of outdoor unit PCB A1P Troubleshooting Refer to thermistor resistance temperature characteristics...

Page 331: ...upposed Causes Defect of thermistor R3T R5T for outdoor unit suction pipe Defect of outdoor unit PCB A1P Troubleshooting Refer to thermistor resistance temperature characteristics table on P355 V3073...

Page 332: ...rmistor is detected Supposed Causes Defect of thermistor R4T for outdoor unit heat exchanger Defect of outdoor unit PCB A1P Troubleshooting Refer to thermistor resistance temperature characteristics t...

Page 333: ...mistor is detected Supposed Causes Defect of thermistor R7T for outdoor unit liquid pipe Defect of outdoor unit PCB A1P Troubleshooting Refer to thermistor resistance temperature characteristics table...

Page 334: ...or open Supposed Causes Faulty subcooling heat exchanger gas pipe thermistor R6T Faulty outdoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P355 V3075...

Page 335: ...leshooting 1 Voltage measurement point 2 Refer to Pressure Sensor pressure voltage characteristics table on P357 V2806 Caution Be sure to turn off power switch before connect or disconnect connector o...

Page 336: ...1 Voltage measurement point 2 Refer to Pressure Sensor pressure voltage characteristics table on P357 V2808 Caution Be sure to turn off power switch before connect or disconnect connector or parts da...

Page 337: ...In case of overcurrent OCP during waveform output When the current sensor malfunctions during synchronized operation When overvoltage occurs in SP PAM In case of IGBT malfunction Supposed Causes Faul...

Page 338: ...leshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Faulty heat radiation of power unit Air suction opening blocked Dirty radiato...

Page 339: ...al is displayed when the inverter output voltage is checked by tester V2812 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Compressor i...

Page 340: ...current check Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable Compressor overload Inspection of the compressor and...

Page 341: ...before connect or disconnect connector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is sta...

Page 342: ...tween the inverter microcomputer and outdoor control microcomputer Defect of outdoor unit PCB Defect of noise filter External factor Noise etc Troubleshooting Caution Be sure to turn off power switch...

Page 343: ...ction Decision Conditions When the aforementioned voltage waveform becomes identical with the waveform of the power supply open phase Supposed Causes Defect of main circuit capacitor Improper main cir...

Page 344: ...unit operation is continued P4 will be displayed by pressing the inspection button Supposed Causes Defect of radiator fin temperature sensor Defect of outdoor unit PC board A1P Troubleshooting Cautio...

Page 345: ...ons When the communication data about inverter PCB type is incorrect Supposed Causes Mismatching of inverter PCB Faulty field setting Troubleshooting Refer to Field Setting from Outdoor Unit on P118 Q...

Page 346: ...ection Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure saturation temperature Malfunction Decision Conditions Microcomputer judge and detect if the syste...

Page 347: ...Replace the thermistor Replace the outdoor unit PC board A1P YES YES NO NO Out of gas closing of stop valve or refrigerant system is clogged Requires check of refrigerant system Replace main outdoor...

Page 348: ...function Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions When the abnormal voltage of main circuit capacitor bui...

Page 349: ...ohms NO NO YES YES YES Replace the inverter PC board A1P Monitor the voltage Instantaneous voltage drop YES NO When the compressor is running measure the voltage between and of electrolytic capacitor...

Page 350: ...function is decided when the unit starts operation without check operation Supposed Causes Check operation is not executed Troubleshooting V3052 Has the check operation performed on Outdoor unit PC bo...

Page 351: ...unction Detection Microcomputer checks if transmission between indoor and outdoor units is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of...

Page 352: ...r unit transmission wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified All indoor unit remot...

Page 353: ...B Defect of remote control PCB Malfunction of transmission caused by noise Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurr...

Page 354: ...specified period Supposed Causes Malfunction of transmission between main and sub remote control Connection between sub remote controls Defect of remote control PCB Troubleshooting Caution Be sure to...

Page 355: ...Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Malfunction of transmission within or outside of other system Malfunction of e...

Page 356: ...more NO NO Refer to failure diagnosis for U4 malfunction code YES YES U9 has been displayed for 2 minutes or more NO Turn on all indoor units Refer to failure diagnosis for A1 malfunction code NO YES...

Page 357: ...depends on the type of outdoor unit Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V3169 The total of indoor units displaying UA and i...

Page 358: ...es Address duplication of centralized remote control Defect of indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be oc...

Page 359: ...Detection Microcomputer checks if transmission between indoor unit and centralized remote control is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain...

Page 360: ...rrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connec...

Page 361: ...n Defect of indoor unit PC board Stop valve is left in closed Troubleshooting Note Wiring check operation may not be successful if carried out after the outdoor unit has been off for more than 12 hour...

Page 362: ...V2831 NO YES YES After fixing incorrect wiring push and hold the RESET button on the master outdoor unit PC board for 5 seconds Normal NO Is electricity being introduce for the first time after instal...

Page 363: ...onding to the measurement of the pressure sensor In cooling High suction air temperature of the condenser In heating High suction air temperature of outdoor unit Short circuit High ambient temperature...

Page 364: ...ator In heating Low suction air temperature of indoor unit Short circuit Is the suction air temperature not less than 14 C Is the indoor temperature not less than 14 C Low ambient temperature Faulty s...

Page 365: ...h the fan motor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table Measurement point Judgment 1 4...

Page 366: ...3 57 94 52 6 65 6 53 3 56 49 55 08 53 6 41 6 53 4 53 71 52 38 54 6 65 6 53 5 51 09 49 83 55 6 41 6 53 6 48 61 47 42 56 6 18 6 06 7 46 26 45 14 57 5 95 5 84 8 44 05 42 98 58 5 74 5 43 9 41 95 40 94 59...

Page 367: ...233 14 71 33 92 33 35 121 7 26 7 16 22 228 05 223 08 72 32 78 32 23 122 7 06 6 97 23 218 24 213 51 73 31 69 31 15 123 6 87 6 78 24 208 90 204 39 74 30 63 30 12 124 6 69 6 59 25 200 00 195 71 75 29 61...

Page 368: ...38V 0 69 PL 0 57V 0 28 PH High pressure MPa VL Low pressure MPa V Voltage V Detected Pressure PH Detected Pressure High Side MPa PL Detected Pressure Low Side MPa VH Output Voltage High Side VDC VL Ou...

Page 369: ...ed on inverter PCB Check the power semiconductors mounted on the inverter PCB by the use of a multiple tester Items to be prepared 1 Multiple tester Prepare the digital type of multiple tester with di...

Page 370: ...rk Criterion Not less than 0 3V including U C Tester terminal The following abnormalities are also doubted besides the PC board abnormality Faulty compressor ground fault ground leakage Faulty fan mot...

Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...

Page 372: ...NBE18 621 Appendix 361 Part 9 Appendix 1 Piping Diagrams 362 1 1 Outdoor Units 362 1 2 BP Units 363 1 3 Indoor Units 364 2 Wiring Diagrams 369 2 1 Outdoor Units 369 2 2 BP Units 370 2 3 Indoor Units 3...

Page 373: ...CCUMULATOR sv Service port Oil separator HPS High pressure sensor High pressure switch Low pressure sensor Solenoid valve Solenoid valve Capillary tube Capillary tube Electronic expansion valve Electr...

Page 374: ...SIDE THERMISTOR DLB ELECTRONIC EXPANSION VALVE ROOM B 3D048286B EVH EV EV EVA B C 3D048285A REFRIGERANT FLOW HEATING COOLING OUTDOOR UNIT 19 1CuT OUTDOOR UNIT 9 5CuT LOCAL PIPING LOCAL PIPING FILTER F...

Page 375: ...d piping 6 4Cut Indoor unit Field piping 12 7Cut Heat exchanger Thermistor on heat exch Cross flow fan Fan motor Refrigerant flow cooling heating 6 4Cut 6 4Cut 7 9Cut 7 0Cut 6 4Cut 9 5Cut Maffler Assy...

Page 376: ...KS60DVMT CDKS35CVMA CDXS25DVMT CDXS35DVMT CDKS25DVMT CDKS35DVMT CDXS35CVMB CDKS25CVMB CDXS25CVMB CDKS60CVMB CDXS50CVMA CDXS60CVMA CDXS60CVMB CDKS50CVMB CDXS50CVMB FDKS25CVMB FDKS35CVMB FDXS25CAVMB FDX...

Page 377: ...piping 6 4Cut Indoor unit Field piping 9 5Cut Heat exchanger Thermistor on heat exch Sirocco fan Fan motor Refrigerant flow cooling heating 6 4Cut 9 5Cut M 4D048724A Field piping 6 4Cut Indoor unit F...

Page 378: ...gerant flow cooling heating 9 5Cut 7 9Cut Cross flow fan Fan motor Fan motor Cross flow fan 7 0Cut 7 0Cut Single union joint Single union joint M M 4D020911D Field piping 6 4Cut Indoor unit Field pipi...

Page 379: ...1220T O To Outdoor unit MODEL FHQ35BUV1B FHQ35BVV1B FCQ35BVE FHQ50 60BUV1B FHQ50 60BVV1B FCQ50 60BVE FBQ60BV1 FBQ60BVL FUQ71 100 125BUV1B FUQ71 100 125BVV1B FHQ71 100 125BUV1B FHQ71 100 125BVV1B FAQ71...

Page 380: ...ITCH PUSH BUTTON SWITCH MODE SET RETURN TEST RESET X1M V1T MOTOR COMPRESSOR HBP THERMISTOR LIQUID THERMISTOR SUBCOOL PRINTED CIRCUIT BOARD NOISE FILTER THERMISTOR COIL MAGNETIC RELAY Y3S POWER SUPPLY...

Page 381: ...P MOTOR OPERATED VALVE COIL GRN YLW CONNECTOR PRINTED CIRCUIT BOARD FUSE 3 3 3 2 2 2 1 1 1 PCB X3M X4M X5M 2 3 2 2 3 3 1 1 1 3 4 2 1 DS2 H2P H3P H4P H5P H1P E1 DLA R1T t DGA R2T 3 15A F2U t DLB R3T t...

Page 382: ...LY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN TRANSMISSION CIRCUIT RECTIFIER INTELLIGENT EYE SENSOR INFRARED REMOTE CONTROL SIGNAL RECEIVER 3D051268A t t S7 S1 1 t M C70 140 C GRN Y...

Page 383: ...RECEIVER FIELD WIRING RED ORG YLW PNK BLU RECTIFIER BLK WHT RED GRN YLW RED BLU BRN ORG WHT LED1 H1P LED2 H2P LED3 H2P PCB4 PCB3 PCB5 LED1 H1P R1T t S37 S38 LED2 H2P LED3 H3P PCB2 S27 S36 S1W S26 S35...

Page 384: ...DED THERMISTOR CONNECTOR OPERATION SWITCH PHASE CONTROL CIRCUIT TERMINAL BLOCK NOISE FILTER FERRITE CORE CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF A...

Page 385: ...3 1 3 2 1 SIGNAL RECEIVER 3D034713C outdoor BLK WHT RED GRN YLW PROTECTIVE EARTH FU FUSE H1P H2P H3P PILOT LAMP L1S FAN MOTOR M1F M2F LIMIT SWITCH M1S SWING MOTOR M2S LOWER AIR OUTLET MOTOR PCB1 PCB4...

Page 386: ...E COMBINATION SYSTEM CONFIRM ENGINEERING MATERIALS AND CATALOGS ETC BEFORE CONNECTING 5 GROUND THE SHIELD OF THE REMOTE CONTROL CORD TO THE INDOOR UNIT IN CASE OF USING SHIELD WIRE 6 SYMBOLS SHOW AS F...

Page 387: ...G DIODE F1U FUSE F5A 250V ON RED HAP LIGHT EMITTING DIODE H2P LIGHT EMITTING DIODE SERVICE MONITOR GREEN TIMER GREEN KAR MAGNETIC RELAY M1S H3P LIGHT EMITTING DIODE KPR MAGNETIC RELAY M1P FILTER SIGN...

Page 388: ...check for causes of rise in high pressure 352 check for fan motor connector 354 fan motor connector output check 278 298 Hall IC check 280 limit switch continuity check 278 power supply waveforms chec...

Page 389: ...ting wired remote control 137 infrared remote control 138 field setting from outdoor unit 118 forced fan on 145 forced operation ON OFF switch 30 freeze up protection control 77 100 freeze up protecti...

Page 390: ...ectronic expansion valve 300 malfunction of field setting switch 297 malfunction of heat exchanger thermistor R2T 291 malfunction of heat exchanger thermistor R3T 292 malfunction of high pressure sens...

Page 391: ...gramme dry function 87 protection control 73 pump down residual operation 71 R refrigerant circuit 50 refrigerant flow for each operation mode 54 refrigerant overcharged 317 refrigerant recovery mode...

Page 392: ...t 303 transmission error between outdoor unit and BP unit 305 troubleshooting 222 troubleshooting with the LED BP unit 254 outdoor unit 253 skyair indoor unit 252 troubleshooting with the operation la...

Page 393: ...SiENBE18 621 vi Index...

Page 394: ...setting cool heat mode switching 127 setting by dip switches 118 wired remote control 137 infrared remote control 138 freeze up protection control 77 100 freeze up protection control or high pressure...

Page 395: ...KS967B2B 363 BPMKS967B3B 363 FDXS25 35CAVMB 365 FDXS25 35EAVMB 365 FDXS50 60CVMB 365 FFQ25 35 50 60B8V1B 368 FHQ35 50 60BVV1B 368 FLXS25 35BAVMB 366 FLXS50 60BAVMB 366 FTXS20 25 35CAVMB 364 FTXS20 25...

Page 396: ...ld setting 138 wiring diagrams BPMKS967B2B 370 BPMKS967B3B 370 FDXS25 35CAVMB 373 FDXS25 35EAVMB 373 FDXS50 60CVMB 373 FFQ25 35 50 60B8V1B 375 FHQ35 50 60BVV1B 376 FLXS25 35 50 60BAVMB 373 FTXS20 25 3...

Page 397: ...SiENBE18 621 x Drawings Flow Charts...

Page 398: ...express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services presented therein Specifications are subj...

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