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Daikin ARXS50C2VMB, Service Manual

The Daikin ARXS50C2VMB is a top-of-the-line air conditioning unit, designed to provide the utmost comfort in any environment. To ensure the unit's optimal maintenance and performance, we offer a comprehensive Service Manual available for free download on our website. Discover how to maximize the benefits of your Daikin product today.

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Inverter Pair

Wall Mounted Type B-Series

[Applied Models]

z

Inverter Pair : Cooling Only 

z

Inverter Pair : Heat Pump

z

Non-Inverter Pair : Cooling Only 

z

Non-Inverter Pair : Heat Pump

SiEN04-306D

Summary of Contents for ARXS50C2VMB

Page 1: ...Inverter Pair Wall Mounted Type B Series Applied Models zInverter Pair Cooling Only zInverter Pair Heat Pump zNon Inverter Pair Cooling Only zNon Inverter Pair Heat Pump SiEN04 306D ...

Page 2: ...0B2VMB RKS71B3VMB RS60B2VMB R22 RKD50BVM RKD50BVMA RKD50BVMT RKD18BVMS RKD60BVM RKD60BVMA RKD60BVMT RKD24BVMS RKD71BVM RKD71BVMA RKD71BVMT RKD28BVMS Heat Pump Indoor Unit R410A FTXS50BVMA FTXS50BVMB ATXS50CVMB FTYS50BVMB FTXS60BVMA FTXS60BVMB ATXS50DVMB FTYS60BVMB FTXS71BVMA FTXS71BVMB FTXS71BAVMB R22 FTXD50BVMA FTXD50BVMT FTXD50BV4 FTXD60BVMA FTXD60BVMT FTXD80CV4 FTXD71BVMA FTXD71BVMT Outdoor Uni...

Page 3: ...ouvers and Auto Swing 44 1 3 Fan Speed Control for Indoor Units 45 1 4 Programme Dry Function 46 1 5 Automatic Operation 47 1 6 Thermostat Control 48 1 7 Night Set Mode 49 1 8 INTELLIGENT EYE 50 1 9 HOME LEAVE Operation 52 1 10 Inverter POWERFUL Operation 53 1 11 Other Functions 54 2 Function of Main Structural Parts 55 2 1 Function of Thermistor 55 3 Control Specification 57 3 1 Mode Hierarchy 57...

Page 4: ...104 4 Troubleshooting 107 4 1 Error Codes and Description 107 4 2 Indoor Unit PCB Abnormality 108 4 3 Freeze up Protection Control or High Pressure Control 109 4 4 Fan Motor DC Motor or Related Abnormality 111 4 5 Thermistor or Related Abnormality Indoor Unit 113 4 6 Signal Transmission Error between Indoor and Outdoor Units 114 4 7 OL Activation Compressor Overload 115 4 8 Compressor Lock 116 4 9...

Page 5: ... of the Panels and Plates 166 2 2 Removal of the Fan Motor Propeller Fan 170 2 3 Removal of the PCB Electrical Box 174 2 4 Removal of the Reactor 182 2 5 Removal of the Sound Blanket 184 2 6 Removal of the Four Way Valve 186 2 7 Removal of the Electronic Expansion Valve 187 2 8 Removal of the Compressor 188 Part 8 Others 191 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings...

Page 6: ... plug 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 conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the dischargi...

Page 7: ...se 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 appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the e...

Page 8: ...nt gas leaks 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 must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate tox...

Page 9: ...ng 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 resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet ...

Page 10: ...SiEN04 306D List of Functions 1 Part 1 List of Functions 1 List of Functions 2 1 1 R 410A Series 2 1 2 R22 Series 8 ...

Page 11: ...n Night Set Mode Horizontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor...

Page 12: ...ng Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation ...

Page 13: ...t Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation Manual Intellige...

Page 14: ...ty Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation Manual Intelligent Eye Flexible Voltag...

Page 15: ...o Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Opera...

Page 16: ...l Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent ...

Page 17: ...et Mode Horizontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Out...

Page 18: ...rizontal Auto Swing Right and Left Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit ...

Page 19: ...Worry Free Reliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation Manual Intelligent...

Page 20: ...eliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation Manual Intelligent Eye Flexibl...

Page 21: ...eliability Durability Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display 3 Step Airflow H P Only Wiring Error Check Comfort Control Auto Fan Speed Anticorrosion Treatment of Outdoor Heat Exchanger Indoor Unit Silent Operation Night Quiet Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit Outdoor Unit Silent Operation Manual Intelligent Eye Flexibl...

Page 22: ...SiEN04 306D Specifications 13 Part 2 Specifications 1 Specifications 14 1 1 Cooling Only R 410A Series 14 1 2 Cooling Only R22 Series 18 1 3 Heat Pump R 410A Series 22 1 4 Heat Pump R22 Series 29 ...

Page 23: ...ard Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 19 0 21 Power Consumption Rated W 40 45 50 Power Factor 98 0 98 7 99 2 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 238 290 1 050 238 290 1 050 238 Packag...

Page 24: ...l and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 20 Power Consumption Rated W 40 40 45 Power Factor 96 6 96 6 96 4 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 238 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm 2...

Page 25: ...ward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 20 Power Consumption Rated W 40 40 45 Power Factor 96 6 96 6 96 4 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 238 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm 280 840 338...

Page 26: ...dew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 20 0 18 0 18 Power Consumption Rated W 45 40 40 Power Factor 96 4 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 795 230 290 1 050 230 Packaged Dimensions H W D mm 337 1 147 366 280 840 338 337 1 147 366 Weight kg...

Page 27: ...movable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 23 0 22 0 21 0 23 0 22 Power Consumption Rated W 40 45 50 Power Factor 95 7 96 6 98 0 95 7 96 6 97 4 97 8 98 7 97 4 97 8 98 8 98 8 99 2 98 8 98 8 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Contro...

Page 28: ...shable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 23 0 22 0 21 0 23 0 22 Power Consumption Rated W 40 45 50 Power Factor 95 7 96 6 98 0 95 7 96 6 97 4 97 8 98 7 97 4 97 8 98 8 98 8 99 2 98 8 98 8 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 ...

Page 29: ... Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 19 0 21 0 23 Power Consumption W 40 45 50 Power Factor 95 7 97 4 98 8 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 337 1 147 366 337 1 147 366 Weig...

Page 30: ...Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 21 0 23 0 24 Power Consumption W 45 50 52 Power Factor 97 4 98 8 98 5 Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 050 238 290 1 050 238 Packaged Di...

Page 31: ...Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 17 0 17 0 19 0 19 Power Consumption Rated W 40 40 45 45 Power Factor 98 0 98 0 98 7 98 7 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 238 290 1 050 238 Packaged Dimensions H ...

Page 32: ...n Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 21 0 21 Power Consumption Rated W 50 50 Power Factor 99 2 99 2 Temperature Control Microcomputer Control Dimensions H W D mm 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 Weight kg 12 Gross Weight kg 17 Operation Sound H M L SL dBA 46 42 37 34 46 42 37 34 Sound Power H dBA 6...

Page 33: ...Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 0 18 0 20 Power Consumption Rated W 40 45 40 45 Power Factor 96 6 97 8 96 6 97 8 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 238 290 1 050 238 Packaged Dimensions H W D mm 2...

Page 34: ...Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 20 0 22 0 20 0 22 Power Consumption Rated W 45 50 45 50 Power Factor 96 4 97 6 96 4 97 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm...

Page 35: ...Air Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 Power Consumption Rated W 40 45 Power Factor 96 6 97 8 Temperature Control Microcomputer Control Dimensions H W D mm 290 795 230 Packaged Dimensions H W D mm 280 840 338 Weight kg 9 Gross Weight kg 13 Operation Sound H M L SL dBA 44 40 35 32 42 38 33 30 Sound Power ...

Page 36: ...ir Direction Control Right Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 Power Consumption Rated W 40 45 Power Factor 96 6 97 8 Temperature Control Microcomputer Control Dimensions H W D mm 290 795 238 Packaged Dimensions H W D mm 280 840 338 Weight kg 9 Gross Weight kg 13 Operation Sound H M L SL dBA 44 40 35 32 42 38 33 30 Sound Power H...

Page 37: ...e Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated W 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 795 230 290 1 050 230 Packaged Dimensions H W D mm 280 840 338 337 1 147 366 Weight kg 9 12 Gross Weight kg 13 17 Operation Sound H L dBA 44 35 42 45 ...

Page 38: ...emovable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 19 0 18 0 17 0 19 0 18 0 19 0 18 0 17 0 19 0 18 0 21 0 20 0 19 0 21 0 20 0 21 0 20 0 19 0 21 0 20 Power Consumption Rated W 40 40 45 45 Power Factor 95 7 96 6 98 0 95 7 96 6 95 7 96 6 98 0 95 7 96 6 97 4 97 8 98 7 97 4 97 8 97 4 97 8 98 7 97 4 97 8 Temperature Control Microcomputer Control Microcomputer Contro...

Page 39: ...nward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 23 0 22 0 21 0 23 0 22 0 23 0 22 0 21 0 23 0 22 Power Consumption Rated W 50 50 Power Factor 98 8 98 8 99 2 98 8 98 8 98 8 98 8 99 2 98 8 98 8 Temperature Control Microcomputer Control Dimensions H W D mm 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 Weight kg 12 Gross Weight kg 17 Operation Sound H M L SL dBA 46...

Page 40: ...al and Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 19 0 19 0 21 0 21 Power Consumption W 40 40 45 45 Power Factor 95 7 95 7 97 4 97 4 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 337 1 147 366 Weight kg 12 12 Gross Weight kg 17 17...

Page 41: ...eft Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current A 0 23 0 23 Power Consumption W 50 50 Power Factor 98 8 98 8 Temperature Control Microcomputer Control Dimensions H W D mm 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 Weight kg 12 Gross Weight kg 17 Operation Sound H M L SL dBA 46 42 37 34 46 42 37 34 Outdoor Unit RXD71BVMT Casing Color Ivory White ...

Page 42: ... Left Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated W 40 40 Power Factor 92 6 92 6 Temperature Control Microcomputer Control Dimensions H W D mm 290 795 238 Packaged Dimensions H W D mm 280 840 338 Weight kg 9 Gross Weight kg 13 Operation Sound H M L SL dBA 44 40 35 32 42 38 33 30 Sound Power H dBA 63 60 Outdoor Unit RX...

Page 43: ...ft Horizontal and Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 30 0 27 Power Consumption Rated W 70 64 Power Factor 98 2 98 8 Temperature Control Microcomputer Control Dimensions H W D mm 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 Weight kg 12 Gross Weight kg 17 Operation Sound H M L SL dBA 49 45 40 37 47 43 38 35 Sound Power H dBA 65 63 Outdoor Unit ...

Page 44: ...EN04 306D Printed Circuit Board Connector Wiring Diagram 35 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 36 1 1 Indoor Unit 36 1 2 Outdoor Unit 38 ...

Page 45: ...entralized control HA 5 S26 S37 Connector for buzzer PCB 6 S27 S29 S36 Connector for control PCB 7 S28 Connector for signal receiver PCB 8 S32 Connector for heat exchanger thermistor 9 S35 Connector for Intelligent Eye sensor PCB 10 S38 Connector for display PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Re...

Page 46: ...nnector Wiring Diagram 37 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 JC JB JA LEDA S21 S35 SW1 S29 R2861 R2862 RTH1 S38 S27 LED1 LED2 LED3 S37 R2863 S36 R2864 ...

Page 47: ... 7 S51 S101 Connector for service monitor PCB 8 S70 Connector for fan motor 9 S80 Connector for four way valve coil 10 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 11 S91 Connector for fin thermistor 12 AC1 E Connector for power supply PCB 13 H1 H2 Connector for diode bridge 14 HE2 Connector for earth 15 L1 L2 Connector for reactor 1 FU1 Fuse 30A 2 FU2 FU201 Fuse 3 1...

Page 48: ...cuit Board Connector Wiring Diagram 39 PCB Detail PCB 1 Control PCB outdoor unit E AC1 FU2 3 15A H1 H2 S32 S33 S71 S31 S91 R2865 S40 S20 S90 S101 S51 S80 S10 AC2 PCB 2 Power Supply PCB PCB 3 Service Monitor PCB HAC1 V3 HE1 HE2 R2866 HL FU1 30A S52 S102 SW4 R5140 SW1 LED A ...

Page 49: ...Printed Circuit Board Connector Wiring Diagram SiEN04 306D 40 Printed Circuit Board Connector Wiring Diagram MID SPM S34 S72 R2868 S70 FU201 3 15A R2869 CN14 CN11 L1 L2 ...

Page 50: ... Function of Main Structural Parts 55 2 1 Function of Thermistor 55 3 Control Specification 57 3 1 Mode Hierarchy 57 3 2 Frequency Control 58 3 3 Controls at Mode Changing Start up 60 3 4 Discharge Pipe Temperature Control 61 3 5 Input Current Control 61 3 6 Freeze up Protection Control 62 3 7 Heating Peak cut Control 62 3 8 Fan Control 63 3 9 Liquid Compression Protection Function 2 63 3 10 Low H...

Page 51: ...2 2 Names of Parts 75 2 3 Preparation before Operation 78 2 4 AUTO DRY COOL HEAT FAN Operation 81 2 5 Adjusting the Air Flow Direction 83 2 6 POWERFUL Operation 85 2 7 OUTDOOR UNIT SILENT Operation 86 2 8 HOME LEAVE Operation 87 2 9 INTELLIGENT EYE Operation 89 2 10 TIMER Operation 91 2 11 Care and Cleaning 93 2 12 Troubleshooting 96 ...

Page 52: ...explains the conversion principle Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into the DC power source for the present 2 The DC power source is reconverted into the three phase AC power source with variable frequency When the frequency increases the rotation speed of the compressor increase...

Page 53: ...r condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following table shows the functions that define the minimum and maximum frequency Forced Cooling Operation For more information refer to Forced operation mode on page 69 60 12...

Page 54: ...low that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing process for heating cooling dry and fan Outline of 3 D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room This function is effective for starting the air conditioner Detail of the Action When the horizontal swing and vert...

Page 55: ...ng defrost operation 3 In time of thermostat OFF the fan rotates at the following speed Cooling The fan keeps rotating at the set tap Heating The fan keeps rotating at LLL tap 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 explains the principle of fan speed control f...

Page 56: ... set 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 temperature at startup Temperature ON point at which operation starts Frequency switching point Temperaturedifference for operation stop 24 C Room temperature at startup 0 5 C 1 5 C 18 C 18 C 1 0 C...

Page 57: ...setting 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 Main unit setting temperature 2 5 deg 2 Cooling Heating switching point Room temperature Main unit setting temperature 2 5 deg 3 Thermostat ON OFF point is the same as the ON OFF point of cooling o...

Page 58: ...e difference 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 temperature difference is in the zone B Cooling Dry 10 minutes Heating 10 seconds Cooling Dry Heating B A OFF OFF ON ON C Room temperature setpoint R4668 Cooling 0 5 C Dry 0 5 C Cooling 2 0 C D...

Page 59: ...g 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 Heating Operation Timer operation NightSetCircuitON 0 5 C temperature shift Operation stops at the set hours Temperature setting 0 5 C Temperature setting 1 hour Temperature setting 1 C 30 minutes 0 5 C 0 5 ...

Page 60: ...icrocomputer 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 shifted 2 C from the set temperature Cooling 2 C higher Dry 1 C higher and Auto according to the operation mode at that time H1 In case of Fan mode the fan speed reduces by 50 rpm R2821 Sensor output High Low ON OFF sampling 20msec 1sec If the sensor detects th...

Page 61: ...tes 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 In or after this forty minutes if the sensor detects human motion detection signal it let the set temperature and the fan speed return to the original set point keeping a normal operation Others Th...

Page 62: ...on 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 The indoor unit is operated according to the set temperature and air volume for HOME LEAVE which were pre set in the memory of the remote control The LED Red of indoor unit representing HOME LEAVE li...

Page 63: ... of twenty minutes Ex Powerful operation in cooling mode Operation mode Fan speed Target set temperature Cooling H tap 90 rpm 18 C Dry Dry rotating speed 50 rpm Normally targeted temperature in dry operation Approx 2 C Heating H tap 90 rpm 30 C Fan H tap 90 rpm Automatic Same as cooling heating in Powerful operation The target is kept unchanged R4984 90rpm 18 C 20min Target temp Set temp Fan It sh...

Page 64: ...rizing Function This filter incorporates the benefits the Air Purifying Filter and Photocatalytic Deodorizing Filter in a single unit Combining the two filters in this way increases the active surface area of the new filter This larger surface area allows the filter to effectively trap microscopic particles decompose odours and deactivate bacteria and viruses even for the high volume of air requir...

Page 65: ...rge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected C Indoor Heat Exchanger Thermistor 1 The indoor heat exchanger thermistor is used for controlling target discharge pipe temper...

Page 66: ...ooling operation B Discharge Pipe Thermistor 1 The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected C Indoor Heat Exchan...

Page 67: ...nd cooling including drying Note Unless specified otherwise an indoor dry operation command must be regarded as cooling operation Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode Cooling Heating Defrosting Stop mode except for cooling heating modes by indoor command Preheat operation During C capacitor is discharging Stop R2829 Air con...

Page 68: ... freeze prevention defrost 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency For Cooling Only Model 1 Determine command ...

Page 69: ...om the frequency previously calculated 2 I control If the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the ΔD value obtaining the fixed ΔD value When the ΔD value is small lower the frequency When the ΔD value is large increase the frequency 3 Limit of frequency variation width When the difference between input current and input cur...

Page 70: ...lay of four way valve Energize the coil for 150 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way valve is switched acquire the differential pressure required for activating the four way valve by having output the operating frequency which is more than a certain fixed frequency for a certain fixe...

Page 71: ...be 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the unchanged zone the frequency limit will remain In the return reset zone the frequency limit will be cancelled Limitation of current drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling The current droops when outdoor air tem...

Page 72: ...eating Peak cut Control Outline Heat Pump Only During heating operation the signals being sent from the indoor unit allow the operating frequency limitation and prevent abnormal high pressure The signal from the indoor unit must be divided as follows Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 min from operation start Contr...

Page 73: ...g Operation When the outdoor air temperature is lower than 37 C the fan tap must be set to L 2 When Heating Operation When the outdoor air temperature is higher than 4 C the fan tap must be turned to L only for heat pump model 3 9 Liquid Compression Protection Function 2 Outline In order to obtain the dependability of the compressor the compressor must be stopped according to the conditions of the...

Page 74: ... exchanger temperature must be more than its fixed value when finishing Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger temperature Under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or...

Page 75: ...Discharge pipe temperature control Detail The followings are the examples of control which function in each mode by the electronic expansion valve control R2833 Fully closed when power is turned ON Open control when starting Control of target discharge pipe temperature Pressure equalizing control Open control when starting Control of target discharge pipe temperature Defrost control FD 1 Pressure ...

Page 76: ...e 3 12 6 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is disconnected open the electronic expansion valve according to the outdoor air temperature and the operating frequency and operate for a specified time and then stop After 3 minutes of waiting restart ...

Page 77: ...ischarge pipe temperature from the indoor and outdoor heat exchanger temperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature become close to that temperature Indirect SH control using the discharge pipe temperature Determine a correction value of the electronic expansion valve compensation and drive it according to the deflection of the target di...

Page 78: ... must be regarded as gas insufficient In addition to such conventional function if the discharge temperature is higher than the target discharge pipe temperature and the electronic expansion valve is fully open 450 pulses more than the specified time it is considered as an insufficient gas With the conventional function a power consumption is weak comparing with that in the normal operation when g...

Page 79: ...not abnormal and not in the 3 minute stand by mode 2 The operating mode of the outdoor unit is the stop mode 3 The forced operation is ON The forced operation is allowed when the above and conditions are met Starting adjustment If the forced operation switch is pressed as the above conditions are met 1 Command frequency 66 Hz 2 Electronic expansion valve opening Depending on the capacity of the in...

Page 80: ...to 20 C or lower the operation will stop If the outdoor temperature rises the operation will start again Caution 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings 3 Do not place humidifiers or other ...

Page 81: ...lever 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 However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and handing o...

Page 82: ...ith any flame as of gas heaters kerosene heaters or gas range If the air conditioner is not cooling heating properly the refrigerant may be leaking so call your dealer When carrying out repairs accompanying adding refrigerant check the content of the repairs with our service staff Do not attempt to install the air conditioner by your self Incorrect work will result in water leakage electric shocks...

Page 83: ...emodeling To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the air conditioner Before cleaning be sure to stop the operation turn the breaker off or pull out the supply cord Do not connect the air conditioner to a power supply different from the one as specified It may cause trouble or fire Depending on the environment an earth leakage break...

Page 84: ...SiEN04 306D Instruction System Configuration 75 4 2 Names of Parts Indoor Unit the illustration shows a 50 class unit Main unit control panel ...

Page 85: ... lamp red Lights up when you use HOME LEAVE Operation page 16 14 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refer to the following table This switch is useful when the remote control is missing 15 Packaging materials 50 class only If any packaging materials are included please remove before operating page 24 16 Room temperature ...

Page 86: ...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 mode AUTO DRY COOL HEAT FAN page 10 8 SILENT button OUTDOOR UNIT SILENT operation page 15 9 FAN setting button It selects the air flow rate setting 10 SENSOR button INTELLIGENT EYE operation page 18 11 SWING button page 12 Flap Hor...

Page 87: ...long time take the batteries out We recommend replacing once a year although if the remote control display begins to fade or if reception deteriorates please replace with new alkali batteries Using manganese batteries reduces the lifespan The attached batteries are provided for the initial use of the system The usable period of the batteries may be short depending on the manufactured date of the a...

Page 88: ...unit 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote control in the remote control holder About remote control Never expose the remote control to direct sunlight Dust on the signal transmitter or receiver will reduce the sensitivity Wipe off dust with soft cloth Signal communication may be disabled if an electronic starter type fluorescen...

Page 89: ...f electricity even while it is not operating If you are not going to use the air conditioner for a long period for example 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 Recommended temperature setting For cooling 26 C 28 C For heating 20 C 24 C Mode Op...

Page 90: ...tton advances the mode setting in sequence AUTO DRY COOL HEAT FAN FTKS FTXS 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To change the temperature setting 4 Press TEMPERATURE adjustment button C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SILENT SWING ON CANCEL OFF SENSOR DRY or FAN mode AUTO or COOL or HEAT mode T...

Page 91: ...ll 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 case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on DRY operation The computer chip works to rid the...

Page 92: ...isplayed on the LCD 2 When the flaps have reached the desired position press SWING button once more The flap will stop moving To adjust the vertical blades louvers 3 Press SWING button is displayed on the LCD 4 When the louvres have reached the desired position press the SWING button once more The louvres will stop moving C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SILENT SWING ON CANCEL OFF ...

Page 93: ...nging 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 air which tends to collect near the ceiling throughout the room preventing areas of cold and hot developing ATTENTION Always use a remote control to adjust the flaps angle If you attempt to move it forc...

Page 94: ... operation there are some functions which are not available To cancel POWERFUL operation 2 Press POWERFUL button again TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SILENT SWING ON CANCEL OFF O N SENSOR Notes on POWERFUL operation In COOL and HEAT mode To maximize the cooling heating effect the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting The te...

Page 95: ... SILENT operation 2 Press SILENT button Note on OUTDOOR UNIT SILENT operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT SILENT operation cannot be used at the same time Priority is given to POWERFUL operation If operation is stopped using the remote control or the main unit ON OFF switch when using OUTDOOR U...

Page 96: ...ing 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 HOME LEAVE button Make sure is displayed in the remote control display 2 Adjust the set temperature with or as you like 3 Adjust the air flow rate with FAN setting button as you like Home leave operation will run with these se...

Page 97: ...ou will be welcomed by a comfortably air conditioned room Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set temperature for normal operation Set the unit to HOME LEAVE Operation before leaving the living room when going to bed The unit will maintain the temperature in the room at a comfortable level while you sleep When you enter the living room in ...

Page 98: ...LLIGENT EYE operation 1 Press SENSOR button To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again C TEMP ON OFF POWERFUL HOME LEAVE MODE TIMER FAN SWING SILENT ON CANCEL OFF SWING SENSOR Back to normal operation 20 min after start energy saving operation Normal operation Somebody back in the room When nobody in the room When somebody in the room EX ...

Page 99: ... 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 operation will not go on during powerful operation Night set mode will not go on during you use INTELLIGENT EYE operation Do not place large objects near the sensor Also keep heating units or humidifiers out...

Page 100: ...on 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 present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote control batteries are replaced When operating the unit via the ON OFF Timer the a...

Page 101: ... button changes the setting rapidly 3 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below In the following cases set the timer again After a breaker has turned OFF After a power failure After replacing batteries in the remote c...

Page 102: ...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 left and right of the front panel with the slots then push them all the way in Close the front panel slowly Press the panel at both sides and the center When the packaging materials are attached to the front panel please remove them Don t touch ...

Page 103: ...ot 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 filter with photocatalytic deodorizing function gray The air purifying filter with photocatalytic deodorizing function can be renewed by washing it with water once every 6 months We recommend replacing it one every 3 ...

Page 104: ...y for several hours on a fine day to dry out the inside Press MODE button and select FAN 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 remote control Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor he...

Page 105: ...OOL 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 This happens when the air in the room is cooled into mist by the cold air flow during cooling operation This is because the air in the room is cooled by the heat exchanger and becomes mist during defrost operation The indoor unit gives out odour This happe...

Page 106: ...he windows and doors closed Are the air flow rate and the air direction set appropriately Operation stops suddenly OPERATION lamp flashes Are the air filters clean Is there anything to 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 conditioner with the re...

Page 107: ... 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 conditioner The maintenance cost must be born by the user Call the service shop immediately When an abnormality such as a burning smell occurs stop operation and turn the breaker OFF Continued operati...

Page 108: ... HEAT EXCHANGER TEMPERATURE SENSOR 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 OVER CURRENT F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR H8 CT ABNORMALITY H9 FAULTY SUCTION AIR TEMPERATURE ...

Page 109: ...Instruction SiEN04 306D 100 System Configuration ...

Page 110: ...ssion Error between Indoor and Outdoor Units 114 4 7 OL Activation Compressor Overload 115 4 8 Compressor Lock 116 4 9 DC Fan Lock 117 4 10 Input Over Current Detection 118 4 11 Four Way Valve Abnormality 120 4 12 Discharge Pipe Temperature Control 122 4 13 High Pressure Control in Cooling 123 4 14 Position Sensor Abnormality 125 4 15 CT or Related Abnormality 126 4 16 Thermistor or Related Abnorm...

Page 111: ...tion 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp Troubleshooting with the LED Indication The outdoor unit has one green LED LED A on the PCB The flashing green LED indicates normal condition of microcomputer operation Operation lamp green HOME LEAVE lamp re...

Page 112: ... for heat pump model and cooling operation cannot be used when the outside temperature is below 5 C 10 C for Europe Diagnosis with remote control indication 107 Equipment operates but does not cool or does not heat only for heat pump model Check for wiring and piping errors in the indoor and outdoor units connection wires and pipes Conduct the wiring piping error check described on the product dia...

Page 113: ...ence shown below and notifies with a long beep Note 1 A short beep and two 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 1 minute No Code No Code No Code 1 00 12 C7 23 H0 2 U4 13 H8 24 E1 3 F3 14 J3 25 P4 4 E6 15 A3 26 L3 5 L5 16 A1 27 L4 6 A6 17 C...

Page 114: ...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 The number of tens accords with the error code H beep The both numbers of tens and units accord with the error code See page 7 4 Enter the diagnosis mode again Press the MODE button The digit of the num...

Page 115: ...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 error code 7 Determine the error code The digits indicated when you hear the beep sound are error code Error codes and description Refer to page 107 8 Exit from the diagnosis mode Press the MODE button R4277 R4278 ...

Page 116: ...lity 113 C9 Room temperature thermistor abnormality 113 Outdoor Unit E5H OL activation compressor overload 115 E6H Compressor lock 116 E7 DC fan lock 117 E8 Input over current detection 118 EA Four way valve abnormality 120 F3 Discharge pipe temperature control 122 F6 High pressure control in cooling 123 H6 Position sensor abnormality 125 H8 CT or related abnormality 126 H9 Outdoor air thermistor ...

Page 117: ...ection in approximately 10 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector connection check note YES Is it normal NO Correct connections Replace PCBs R1400 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Model Type Connector No ...

Page 118: ...n 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 the indoor heat exchanger thermistor is above 65 C Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Supposed Causes Operation halt due to clogged air...

Page 119: ...cumulation 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 air passage Clean the air filter Clean the heat exchanger Replace the indoor unit PCB Replace the thermistor replace the indoor unit PCB Caution Be sure to turn off power switch before connect or disconnect co...

Page 120: ...ction Decision Conditions When the detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Operation halt due to short circuit inside the fan motor winding Operation halt due to breaking of wire inside the fan motor Operation halt due to breaking of the fan motor lead wires Operation halt due t...

Page 121: ...eck No 01 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 again Does it rotate Stop fan motor Is rotation number command pulse generated Is rotation number command pulse generated Check No 01 Check output of fan motor connector Check No 01 Check o...

Page 122: ...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 No 6 Refer to P 141 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor Check the connector connection YES Correct the connection Replace the thermistor Replace the indoor unit PCB Replace ...

Page 123: ...nal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire No 2 Troubleshooting Check No 10 Refer to P 144 Check the outdoor unit s LED A Check the indoor unit outdoor unit connection wires YES YES Correct the indoor unit outdoor unit connection wires Diagnose the outdoor unit Replace the connection wires between the indoor and outdoor units Re...

Page 124: ...bleshooting Check No 4 Refer to P 139 Check No 5 Refer to P 140 Check No 6 Refer to P 141 Check No 11 Refer to P 144 Insert the thermistor in position Replace the discharge pipe thermistor Replace the valve itself or the coil Replace the four way valve coil or the valve itself Replace the outdoor unit PCB Refer to the refrigerant line check procedure Replace the outdoor unit PCB R2841 Caution Be s...

Page 125: ...ccurs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Compressor locked Troubleshooting Turn off the power Disconnect the harnesses U V and W Inverter checker Part No 1225477 Correct the power supply or replace the SPM Replace the outdoor unit PCB Replace the compressor Check the electronic expansion valve Replace it as required Replace the compressor R2842 Ca...

Page 126: ... for about 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check No 15 Refer to P 146 Turn off the power and reconnect the connector Remove Replace the outdoor unit fan motor Replace the outdoor unit PCB R2843 Caution Be sure to turn off power switch before connect o...

Page 127: ...wing CT input with the compressor running continues for 2 5 seconds CT input Above 20 A The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Over current due to compressor failure Over current due to defective power transistor Over current due to defective inverter main circuit electrolytic capacitor Over current due...

Page 128: ... above its stop level NO YES Normal NO YES Any LED off YES NO Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and get restarted Turn off the power and disconnect the harnesses U V and W Get restarted and measure the input current Check No 8 Check the discharge pressure Check No 7 Check the installation condition Check No 14 Check the main circ...

Page 129: ... to see if they function within their normal ranges in the operating mode Malfunction Decision Conditions A following condition continues over 1 minute after operating 10 minutes Cooling dry operation room temp indoor heat exchanger temp 10 C Heating indoor unit heat exchanger temp room temp 10 C Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defective Four way val...

Page 130: ...power switch before connect or disconnect connector or parts damage may be occurred Four way valve coil disconnected loose YES YES NO Functioning NO Check No 11 Check the refrigerant line Malfunctioning z Insufficient gas z Water mixed z Stop valve defective Harness out of connector NO YES Disconnect the harness from the connector Resistance between harnesses about 1500 ohms Malfunctioning Functio...

Page 131: ...llowing 60 minute compressor running time total time Supposed Causes Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective Troubleshooting Check No 4 Refer to P 139 Check No 6 Refer to P 141 ...

Page 132: ...ing sensed by the heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 60 C Deactivated when the said temperature drops below 50 C Supposed Causes The installation space is not large enough Faulty outdoor unit fan Faulty electronic expansion valve Faulty defrost thermistor Faulty outdoor...

Page 133: ...ir the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Change the installation location Clean the heat exchanger Check the installation space Check No 9 Outdoor fan check Judgment Check No 6 Heat exchanger thermistor check Judgment Check No 7 Installation conditi...

Page 134: ...nected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 145 Replace the outdoor unit PCB outdoor unit fan Replace the outdoor unit PCB Reconnect as specified Inverter checker Part No 1225477 Correct the power supply or replace the outdoor unit PCB Replace the compressor R2847 Caution Be sure to turn o...

Page 135: ...ion Conditions The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 1 25 A If this error repeats 4 times the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Power transistor defective Internal wiring brok...

Page 136: ...witch before connect or disconnect connector or parts damage may be occurred Running current as shown at right with relay cable 1 or 2 YES Current guideline 2 sec Time Rising with increasing frequency Capacitor charged when the indoor unit or outdoor unit main relay turns on NO NO DC380 30V YES Voltage within the allowable range Supply voltage 15 YES NO Any LED off Compressor running YES NO YES NO...

Page 137: ...ature Malfunction Decision Conditions The thermistor input is above 4 96 V or below 0 04 V with the power on Error J3 is judged if the discharge pipe thermistor temperature is smaller than the condenser thermistor temperature Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defective Indoor unit PCB defective Condenser thermistor defective in the case of J3 error out...

Page 138: ... temperature thermistor z Outdoor air thermistor Replace the following thermistor z Indoor unit heat exchanger thermistor Replace the outdoor unit PCB Replace the indoor unit PCB R2849 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again on remote controller NO YES YES YES NO Indoor unit heat exchanger thermistor func...

Page 139: ...fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C above 75 C in the case of 7 1kW class Reset is made when the temperature drops below 70 C Supposed Causes Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contact Outdoor...

Page 140: ...aution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error again or outdoor unit fan activated YES z Fin thermistor NO Slightly dirty Check No 9 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirty Functioning Thermistor as specified in its characteristic chart Above 80 C NO YES NO YES Check the radiation fin t...

Page 141: ...adiation fin temperature with the compressor on is above 90 C If a radiation fin temperature rise takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Fin temperature rise due to defective outdoor unit fan Fin temperature rise due ...

Page 142: ... or the power transistor Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Clean up the radiation fin R2851 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again YES NO Slightly dirty Check No 9 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirt...

Page 143: ...is running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Over current due to defective power transistor Over current due to wrong internal wiring Over current due to abnormal supply voltage Over current due ...

Page 144: ...nnected for part replacement for example and the system is interrupted by an output over current take the following procedure Error again NO YES NO YES Voltage as rated YES NO Short circuit or breakage between compressor s coil phases NO YES Normal YES NO Any LED off Turn off the power and turn it on again to get the system started See if the same error occurs Turn off the power and disconnect the...

Page 145: ...Hz Compressor running frequency However when the status of running frequency 55 Hz is kept on for a certain time Note The values are different from model to model Gas shortage detection II If a gas shortage error takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor runni...

Page 146: ...t exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R2853 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Any thermistor disconnected YES Malfunctioning Malfunctioning NO Functioning Stop valve closed NO YES Check the CT YES NO Gas shortage error again Functioning Check No 6 Check the thermistors YES N...

Page 147: ...on Continuous run for about 60 minutes normal Supposed Causes Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective PAM control part s defective Troubleshooting Check the supply voltage Correct the power supply Check for such factors for a long term Try to get restarted a couple of times Replace the SPM Replace the outdoor unit PCB R2854 Caution Be sure to...

Page 148: ...ect that connector and check the conductivity using a tester Check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty 4 If no EV generates latching sound in the above step 2 the outdoor unit PCB is faulty 5 If the conductivity is confirmed in the above step 2 mount a good coil which generated latching sound in the E...

Page 149: ...unit PCB Replace the four way valve coil Replace the four way valve R2856 NO Four way valve coil Cooling dry No continuity Heating Continuity YES YES Four way valve coil resistance at 1500 ohms NO S80 voltage at DC 180 220 V with compressor on Fig 1 Disconnect the four way valve coil from the connector and check the continuity Fig 1 Voltage at S80 DC180 220V ON Compressor Time ...

Page 150: ...nce of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20kΩ B 3950 Temperature C 20 211 0 kΩ 15 150 10 116 5 5 88 0 67 2 5 51 9 10 40 15 31 8 20 25 25 20 30 16 35 13 40 10 6 45 8 7 50 7 2 Tester Resistance range R25 20kΩ B 3950 kΩ 100 50 15 0 15 30 45 C 1437 150 ...

Page 151: ...nger Change the installation location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 46 C or lower Check the allowable dimensions of the air suction and discharge area Is the air flow blocked by obstacles or winds blowing in the opposite direction R5320 Abnormal YES YES YES Does the discharged air from other outdo...

Page 152: ...op valve Replace the pipe installed at the site Clean Replace the compressor R1443 YES YES YES NO NO NO NO At the heat exchanger and air filter dirty Is the stop valve open Is the connection pipe deformed YES High Check the outdoor unit fan system Reconnect R2857 Outdoor unit fan running YES Fan motor lead wire connector disconnected YES NO NO Outdoor unit fan system functioning Go to Check No 15 ...

Page 153: ...m disturbance near the zero cross sections circled in Fig 2 5 1 9 Inverter Units Refrigerant System Check Check No 11 Fig 1 Fig 2 R1736 R1444 Refrigerant system check Check for gas leaks See the section on insufficient gas detection Conduct the check after operating the equipment for a sufficient length of time Correct the problem Conduct vacuum drying Replace the refrigerant Is the discharge ther...

Page 154: ... turning off the circuit breaker If unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 V using the tester For the UVW make measurements at the Faston terminal on the board or the relay connector Fan motor lead wire Solenoid valve lead wire Thermistor lead wire OL lead wire Reactor lead wire Compressor lead wire TB2 PS TB3 P2 N1 590 592 593 580 52...

Page 155: ... and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor with a hand and make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fuse is blown out the outdoor unit fan may also be in trouble Check the fan too If the voltage in Step 2 is not applied it means the PCB is defective Replace the PCB If the pulse in Step 4 is not available it mea...

Page 156: ...l Box PCB Swing Motor 155 1 5 Removal of the Heat Exchanger 161 1 6 Removal of the Fan Rotor Fan Motor 164 2 Outdoor Unit 166 2 1 Removal of the Panels and Plates 166 2 2 Removal of the Fan Motor Propeller Fan 170 2 3 Removal of the PCB Electrical Box 174 2 4 Removal of the Reactor 182 2 5 Removal of the Sound Blanket 184 2 6 Removal of the Four Way Valve 186 2 7 Removal of the Electronic Expansio...

Page 157: ...the signal receiver catches a signal from the remote control it produces beep sound and the operation lamp blinks 2 Remove the air filters 1 Hold the front panel by the tabs on the both sides and lift it until it stops with a click 2 Lift an air filter upwards slightly by the center knob and then pull it out downwards R2746 Room temperature sensor thermistor R2747 Timer lamp ON OFF switch Operatio...

Page 158: ...e Insert two claws of the air filter completely 3 Remove an air purifying filter with photocatalytic deodorizing function 1 Push up the bottom of an air purifying filter to undo the claws 2 on lower 3 on upper and take the filter out The right and left filters are interchangeable Step Procedure Points Claws FRONT R2750 Claws Claws R2751 Air puritying filter with photocafalytic deodorizing function...

Page 159: ... 1 While opening the front panel further than it stops release both axes and remove the front panel Slide the front panel side to side to release each axis Align the right and left axes with grooves in turn and insert them to the end when installing Step Procedure Points ...

Page 160: ...Step Procedure Points 1 Remove the service cover 1 Loosen the screw and remove the service cover by the knob No field setting switch is inside it You can remove the front grille without detaching the service cover 2 Remove the front grille 1 Loosen the three fixing screws of the front grille It has no fixing screws inside blades though previous models had Service cover R2756 Front grille R2758 ...

Page 161: ... on the center and the both sides of the upper part Refer to the removal procedure in a reverse way when reassembling 3 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille Make sure that all the hooks are placed securely when reassembling Step Procedure Points Hook R2759 Hook R2760 ...

Page 162: ...lades It has no fixing screws inside blades though previous models had 2 Undo the left pivot of the horizontal blades 3 Bend the horizontal blades slightly and release the center pivots Slide the horizontal blades to the left and release the right pivot Installation procedure 1 Since key pattern hook is provided rotate the blades and fit it to the right pivot first 2 Fit the blades to the center a...

Page 163: ... 306D 154 Removal Procedure 2 Remove the vertical blades 1 Undo the right and left pivots 2 Undo the three claws 3 Pull the vertical blades rightwards and remove it Step Procedure Points Vertical blades R2767 Claws R2768 ...

Page 164: ...ter turning off all power supplies before disassembling work Step Procedure Points 1 Remove the front grille Parts layout 2 Remove the drip proof plate 1 Loosen the screw 3 Disconnect the indoor heat exchanger thermistor and the earth Mind that not to lose the clip for the thermistor Drip proof plate R2771 Indoor heat exchanger thermistor Earth R2772 ...

Page 165: ...ox without detaching the terminal strip board Screw M4 25 2 Disconnect the connectors for fan motor S1 3 Disconnect the connectors for swing motor S6 S8 4 Loosen the fixing screw of the electrical box Step Procedure Points Terminal strip board R2773 R2774 Connector for fan motor S1 Connector for swing motor vertical blades S6 R2775 Connector for swing motor horizontal blades S6 Electrical box R277...

Page 166: ...d undo the back claw The electrical box has a claw on its back 6 Pull the electrical box out towards you Hook the back claw of the electrical box when reassembling 7 Loosen the screw on the electrical box Screw M4 16 8 Push the shelter up and undo the claw Step Procedure Points Shelter R2780 ...

Page 167: ...de 10 Cut the clamp 11 The receiver units contain four PCBs Remove each PCB with releasing claws Disconnect every connector from each PCB Remove the receiver units while pushing the claws of connectors 12 Cut the clamp Clamps should be always available Fix it as it was before Step Procedure Points Receiver units R2781 Intelligent Eye sensor PCB Display PCB Signal receiver PCB Buzzer PCB R2783 ...

Page 168: ...B 2 Control PCB indoor unit S1 connector for the fan motor S21 HA S26 connector for the room temperature thermistor S32 connector for the heat exchanger thermistor 6 Remove the swing motor for horizontal blades 1 Remove the screw of the swing motor Step Procedure Points R2783 Control PCB Lower claws Upper claws FU1 soldered 250 V 3 15A V1 varsitor R2787 Swing motor R2788 ...

Page 169: ...swing axis on the right side Releasing the swing axis 2 Loosen the two screws and detach the swing motor assembly 3 Loosen the two screws and remove the swing motor Six claws hold the assembly Step Procedure Points 1 Undo the claw 2 Pull it out R2790 Swing motor assembly R2791 Claws Claws Swing motor R2792 ...

Page 170: ... into refrigerant cycle Contaminating of air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injuries Pay attention so that the residual water in the drain will not make the floor wet In case that a drain hose is buried inside a wall remove it after the drain hose in the wall is pulled out 1 Disconnect the refrigerant piping 1 Hold th...

Page 171: ... the installation plate 3 Remove the piping fixture 1 Release the claw on the upper side of the piping fixture on the back of the unit 4 Remove the heat exchanger 1 Widen the auxiliary piping to the extent of 10 20 At an angle of 10 20 Step Procedure Points Piping fixture R2798 Auxiliary piping R2799 ...

Page 172: ...side and release 4 Pull the heat exchanger to the front side and undo the claws completely and then lift it Caution When removing or reinstalling heat exchanger be sure to wear protective gloves or wrap the heat exchanger with cloths Fins can cut fingers Step Procedure Points Claws R2800 Claws R2801 Heat exchanger R2802 ...

Page 173: ...before disassembling work Step Procedure Points 1 Remove the right side panel 1 Loosen the two screws You can remove the fan rotor without detaching the right side panel 2 Lift the right side panel and remove it 2 Remove the fan rotor 1 Loosen the screw and remove the fan motor fixture 2 Loosen the fixing screw of the fan rotor Right side panel R2803 Fan motor fixture R2805 ...

Page 174: ...mbling the fan motor align the end of the connector with the height of for play 4 Remove the bearing 1 Remove the fan rotor The bearing is on the left side 2 Loosen the two screws and remove the mounting plate for the bearing 3 The bearing is made of rubber Push it inwards firmly and remove it Step Procedure Points Fan motor R2807 5mm Side face of bottom frame Side face of rotor R2808 Fan rotor R2...

Page 175: ...rning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels and plates Take care not to cut your finger by the fins of the heat exchanger 1 Loosen the four screws and lift the top panel 2 Loosen the four screws and remove the discharge grille Top panel R2676 Outdoor air thermistor Heat exchanger R2677 Discharge grille R2678 ...

Page 176: ...rille has four claws Slide the discharge grille upwards and remove it 3 Loosen the six screws of the front panel 4 Push the front panel and undo the claw Lift the clamp plate and remove it Step Procedure Points Front panel R2680 Clamp plate Lift upwards R2681 ...

Page 177: ...de claw and then the left side claws Remove the front panel Lift the front panel and remove it while pushing the right side panel inwards Lift the front panel and undo the left side claws Fit the left side of the front panel first when installing Step Procedure Points ...

Page 178: ...l Procedure 169 2 Remove the stop valve cover 1 Loosen the screw of the stop valve cover 2 Pull down the stop valve cover to undo the claws and remove it The stop valve cover has six claws Step Procedure Points Stop valve cover R2685 ...

Page 179: ...Procedure Points Remove the top panel and the front panel 1 Remove the electrical box cover This procedure is not necessary to remove the propeller fan only 1 Loosen the screw on the back of the shelter 2 Undo the two claws and remove it The claws have been released since the front panel was removed 3 Release the four claws of the electrical box cover and remove it R2688 Shelter Claws R2690 Electr...

Page 180: ...or Unit Removal Procedure 171 2 Remove the fan motor 1 Disconnect the connector for fan motor S70 2 The illustration shows arrangement of the fan motor lead wire Step Procedure Points S70 R2692 Fan motor lead wire R2693 ...

Page 181: ...rew the washer fitted nut M10 of the propeller fan with a spanner Align mark of the propeller fan with D cut section of the motor shaft when reassembling 4 Remove the four screws from the fan motor Step Procedure Points Propeller fan R2694 Fan motor R2696 ...

Page 182: ... 306D Outdoor Unit Removal Procedure 173 5 Pull the fan motor out Put the lead wire through the back of the motor when reassembling so as not to be entangled with the propeller fan Step Procedure Points R2697 ...

Page 183: ...p Procedure Points Remove the top panel and the front panel 1 Remove the right side panel Terminal strip number black 1 power supply white 2 power supply red 3 transmission yellow green earth 1 Disconnect the three connection wirings and the two earth wires 2 Loosen the three screws of the right side panel 3 Loosen the fixing screw of the electrical box Terminal strip board R2698 Right side panel ...

Page 184: ...bling 2 Disconnect harnesses 1 Loosen the fixing screw of the cable way board Service monitor PCB Step Procedure Points R2701 Claw R2702 Claws Cable way board Service monitor PCB R2703 S52 SW1 A B C LEDA Green SW4 Initial setting OFF LED A Green ON SW4 S102 S2 R2704 ...

Page 185: ... yellow green to the terminal strip earth HAC1 black from the control PCB AC1 HE1 yellow green from the control PCB E Power supply PCB 4 Disconnect the connectors of the front side S20 electronic expansion valve S40 overload protector S80 four way valve S90 thermistors discharge pipe outdoor air heat exchanger Step Procedure Points HE1 V3 varistor soldered HE2 HL FU1 250V 30A HAC1 R2707 S40 S20 S8...

Page 186: ...ontrol PCB from the ditch of the front side 7 Disconnect the harnesses while opening the control PCB S10 to the terminal strip AC2 to the terminal strip 8 Disconnect the connectors S51 to the service monitor PCB S101 to the service monitor PCB Step Procedure Points Control PCB Ditch R2703 S10 R2710 AC2 white S101 S51 R2711 ...

Page 187: ...on valve S31 to CN14 of the SPM S32 to CN11 of the SPM S33 to S34 of the MID S40 overload protector S51 to S52 of the service monitor PCB S71 to S72 of the MID S80 four way valve S90 thermistors discharge pipe outdoor air heat exchanger S91 fin thermistor S101 to S102 of the service monitor PCB Step Procedure Points S91 S31 S71 S33 S32 H2 blue H1 yellow R2712 S80 Fu2 3 15A 250V S10 S51 S101 S20 S9...

Page 188: ...SiEN04 306D Outdoor Unit Removal Procedure 179 11 Disconnect the relaying wire connector for the compressor 12 Release the clamp by pliers 13 Disconnect the reactor harness Step Procedure Points R2715 ...

Page 189: ...Outdoor Unit SiEN04 306D 180 Removal Procedure 14 Pull the clamp and draw the thermistor harness out from the back of the electrical box 15 Loosen the screw of the electrical box Step Procedure Points ...

Page 190: ...SiEN04 306D Outdoor Unit Removal Procedure 181 16 Release the clamp of the four way valve harness 17 Lift the electrical box and remove it Step Procedure Points R2720 Electrical box R2721 ...

Page 191: ... or more after turning off all power supplies before disassembling work Step Procedure Points Remove the electrical box 1 Remove the partition plate 1 Release the clamp by pliers 2 Loosen the two screws of the partition plate The partition plate is fixed to the bottom frame with a claw Partition plate R2723 R2724 Claw ...

Page 192: ...SiEN04 306D Outdoor Unit Removal Procedure 183 3 Lift the partition plate and remove it 4 Loosen the screw Slide the reactor and remove it from the partition plate Step Procedure Points Reactor R2726 ...

Page 193: ...nts 1 Disconnect the harness of each thermistor 2 Release the discharge pipe thermistor Pay attention to the direction of the clip so as not to touch the lead wire of the thermistor when reassembling 3 Cut the clamp by nippers Disconnect the outdoor heat exchanger thermistor Clamps should be always available Fix it as it was before Discharge pipe thermistor Clip R2728 Clamp Outdoor heat exchanger ...

Page 194: ...anket carefully 5 Remove the sound blanket top upper 6 Remove the sound blanket top lower 7 Remove the sound blanket side inner Since the piping ports on the sound blanket side inner are torn easily remove the blanket carefully Step Procedure Points Sound blanket side outer R2730 Sound blanket top upper R2731 Sound blanket top upper R2732 Sound blanket side inner R2733 ...

Page 195: ...uickly when no nitrogen gas can be used 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth will not be dried and avoid excessive heating Keep below 120 C In case of the difficulty with gas brazing machine 1 Disconnect ...

Page 196: ...hat the refrigerant is empty in the circuit 3 Heat up the two brazed parts of the electronic expansion valve and disconnect Be sure to apply nitrogen replacement when heating up the brazed part Caution Be careful about the electronic expansion valve pipes and so on which were heated up by a gas brazing machine so as not to get burnt your hands Warning Ventilate when refrigerant leaks during the wo...

Page 197: ...inutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the lead wires of the compressor Be careful so as not to burn the compressor terminals or the name plate Make a note U red V yellow W blue N brown Terminal cover R2741 N W U V ...

Page 198: ...as Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to burn the compressor terminals or the name plate 5 Heat up the brazed part of the discharge side and disconnect 6 Heat up the brazed part of the suction side and disconnect Be careful so as not to burn the heat exchanger fin Warning Since it may happen that refrigeration oil...

Page 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...

Page 200: ...SiEN04 306D Others 191 Part 8 Others 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings 193 ...

Page 201: ...on 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 cooling or heating mode 3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If ...

Page 202: ...move the drip proof plate 4 tabs 4 Cut the address jumper JA on the control PCB infrared remote control 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting R2871 R2872 Jumper On indoor control PCB Function When connected factory set When cut JC Power failure recovery function Auto start Unit does not resume operation after recovering from a power failure Timer ...

Page 203: ...Others SiEN04 306D 194 Others ...

Page 204: ...SiEN04 306D Appendix 195 Part 9 Appendix 1 Piping Diagrams 196 1 1 Indoor Units 196 1 2 Outdoor Units 197 2 Wiring Diagrams 203 2 1 Indoor Units 203 2 2 Outdoor Units 206 ...

Page 205: ...AN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW ON HEAT EXCH THERMISTOR HEATING COOLING 4D040081L 15 9CuT FIELD PIPING FIELD PIPING 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW ON HEAT EXCH THERMISTOR COOLING 4D050919B 15 9CuT FIELD PIPING FIELD PIPING 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANG...

Page 206: ...6 4CuT FILTER 6 4CuT 6 4CuT GAS STOP VALVE VALVE MOTOR OPERATED STOP VALVE LIQUID FIELD PIPING FIELD PIPING REFRIGERANT FLOW 12 7CuT 6 4CuT COOLING 3D037835B OUTDOOR UNIT 9 5CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR EXCHANGER THERMISTOR HEAT PROPELLER FAN M HEAT EXCHANGER COMPRESSOR 12 7CuT OUTDOOR AIR TEMPERATURE 7 9CuT 7 9CuT 7 9CuT 7 9CuT THER...

Page 207: ...uT 6 4CuT 6 4CuT GAS STOP VALVE WITH SERVICE PORT MOTOR OPERATED VALVE LIQUID STOP VALVE FIELD PIPING 6 4CuT FIELD PIPING 15 9CuT REFRIGERANT FLOW COOLING M 3D049272A OUTDOOR UNIT 9 5CuT 12 7CuT HEAT EXCHANGER THERMISTOR 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR PROPELLER FAN M HEAT EXCHANGER COMPRESSOR 7 9CuT 12 7CuT ACCUMULATOR OUTDOOR TEMPERATURE 7 9CuT 7 9CuT THERMISTOR CAPI...

Page 208: ...STOP VALVE FIELD PIPING FIELD PIPING 6 4 CuT 15 9 CuT REFRIGERANT FLOW COOLING M DISCHARGE PIPE THERMISTOR 7 9CuT COMPRESSOR 12 7CuT ACCUMULATOR 12 7CuT 3D037852G OUTDOOR UNIT 9 5CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR HEAT EXCHANGER THERMISTOR PROPELLER FAN M HEAT EXCHANGER 7 9CuT COMPRESSOR 12 7CuT OUTDOOR AIR TEMPERATURE THERMISTOR 7 9CuT 7 ...

Page 209: ...RANT FLOW COOLING HEATING 12 7CuT 6 4CuT GAS STOP VALVE WITH SERVICE PORT LIQUID STOP VALVE FIELD PIPING FIELD PIPING 12 7 CuT 6 4 CuT M 3D034262F OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR EXCHANGER THERMISTOR HEAT PROPELLER FAN MUFFLER M HEAT EXCHANGER 7 9CuT 7 9CuT VALVE FOUR WAY COMPRESSOR ON HEATING 12 7CuT 12 7CuT 12 7CuT OUTDOOR A...

Page 210: ...5 9CuT HEAT EXCHANGER THERMISTOR PROPELLER FAN 6 4CuT MUFFLER WITH FILTER MUFFLER WITH FILTER FILTER 6 4CuT 6 4CuT MOTOR OPERATED VALVE REFRIGERANT FLOW COOLING HEATING 3D049271A OUTDOOR UNIT 15 9CuT HEAT EXCHANGER THERMISTOR 12 7CuT DISCHARGE PIPE 7 9CuT 7 9CuT 7 9CuT 7 9CuT THERMISTOR PROPELLER FAN M MUFFLER HEAT EXCHANGER 7 9CuT 7 9CuT VALVE FOUR WAY ON HEATING COMPRESSOR 12 7CuT 12 7CuT 12 7Cu...

Page 211: ...OP VALVE VALVE MOTOR OPERATED STOP VALVE LIQUID FIELD PIPING FIELD PIPING REFRIGERANT FLOW 15 9CuT 6 4CuT COOLING HEATING M OUTDOOR UNIT 3D037850C OUTDOOR UNIT 12 7CuT 12 7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT DISCHARGE PIPE THERMISTOR HEAT EXCHANGER THERMISTOR PROPELLER FAN MUFFLER M HEAT EXCHANGER 7 9CuT 7 9CuT FOUR WAY VALVE ON HEATING COMPRESSOR 12 7CuT 12 7CuT 12 7CuT OUTDOOR A...

Page 212: ... OFF AND THEN BACK NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF FIELD WIRING CAUTION 3 2 1 OUTDOOR FRAME GROUND FUSE HARNESS PILOT LAMP FAN MOTOR PRINTED CIRCUIT BOARD CONNECTOR OPERATION SWITCH TERMINAL STRIP 3D038065G CONTROLLER WIRELESS REMOTE PCB4 PCB3 PCB5 INTELLIGENT EYE LED1 H1P R1T SENSOR t S37 S38 LED2 H2P LED3 H3P PCB2 S27 S36 S1W RECEIVER SIGNAL S26 S35 S21 S29 S28 PCB1 R2T S32 t R...

Page 213: ...E EARTH TERMINAL STRIP OPERATION SWITCH CONNECTOR PRINTED CIRCUIT BOARD FAN MOTOR PILOT LAMP FUSE FRAME GROUND H1 H3 HARNESS 3D038466B M SIGNAL RECEIVER INDOOR X1M Fu 3 15A S1W LED1 H1P TRANSMISSION CIRCUIT 2 3 1 OUTDOOR H2P LED2 FIELD WIRING RECTIFIER R1T BLU GRN 5 S6 M1S S27 RED PNK S32 BRN 1 PCB4 FG H1 2 S37 M 3 S26 PCB2 ORG 1 BLU S1 H3 t S38 R2T YLW M1F YLW 7 t BLK WHT S29 H2 WHT 1 PCB3 ORG IN...

Page 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...

Page 215: ...Y MID R1T S6 ORG BLK 6 BRN BLK t S72 S71 1 BLU 8 8 FU201 3 15A RED 1 1 S70 BRN W V U N 7 1 8 RED S33 S34 YLW WHT BLU RED ORG BRN BLU BRN RED YLW X11A 10 10 BLU YLW BRN BLU RED 1 GRY V S40 1 3 M1F M1C M M BLK 4 W U Q1L BLK N 3D037866H M M M Z1C Z2C X1M Y2E V2 V5 FU1 FU2 FU201 HE1 HE2 HAC1 E AC1 C2 H1 H2 HL L1 L2 X11A MRM10 MRM20 MRC W R1T R3T FERRITE CORE TERMINAL STRIP ELECTRONIC EXPANSION VALVE V...

Page 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...

Page 217: ...Wiring Diagrams SiEN04 306D 208 Appendix ...

Page 218: ...nsistor check 145 thermistor resistance check 141 turning speed pulse input on the outdoor unit PCB check 146 check No 01 139 check No 04 139 check No 05 140 check No 06 141 check No 07 142 check No 08 143 check No 09 143 check No 10 144 check No 11 144 check No 12 145 check No 13 145 check No 14 146 check No 15 146 clamp plate 167 CN11 38 178 CN14 38 178 compressor 189 compressor lock 116 compres...

Page 219: ...ist of 2 fuse 36 38 G gas piping 161 H H1 38 H2 38 H6 125 H8 126 H9 128 HA 36 159 HAC1 38 176 Hall IC 45 111 HE1 38 176 HE2 38 176 heat exchanger 163 166 heating peak cut control 62 high pressure control 109 high pressure control in cooling 123 HL 38 176 HOME LEAVE operation 52 87 horizontal blade 153 hot start function 54 I indoor heat exchanger thermistor 55 56 113 155 indoor unit PCB abnormalit...

Page 220: ...nd measures 103 programme dry function 46 propeller fan 172 R radiation fin temperature rise 132 radiation fin thermistor 129 reactor 183 receiver units 158 remote control 104 right side panel 164 174 room temperature thermistor 113 RTH1 36 S S1 36 156 159 S10 38 177 178 S101 38 177 178 S102 38 178 S20 38 176 178 S21 36 159 S26 36 159 S27 36 S28 36 S29 36 S31 38 178 S32 36 38 159 178 S33 38 178 S3...

Page 221: ... related abnormality outdoor unit 128 thermistor resistance check 141 thermostat control 48 TIMER operation 91 top panel 166 troubleshooting 96 107 troubleshooting with the LED indication 102 turning speed pulse input on the outdoor unit PCB check 146 U U0 136 U2 138 U4 114 V V1 36 V3 38 varistor 36 38 vertical blades 154 voltage detection function 69 W wide angle louvres 44 wiring diagrams 203 ...

Page 222: ...rmance check 140 freeze up protection control 62 freeze up protection control or high pressure control 109 frequency control 58 frequency principle 42 H heating peak cut control 62 high pressure control in cooling 123 HOME LEAVE operation 52 I indoor unit PCB abnormality 108 input current control 61 input over current detection 118 installation condition check 142 insufficient gas 136 insufficient...

Page 223: ...on fin temperature rise 132 remote control 104 S service monitor PCB 39 signal receiver PCB 37 signal transmission error between indoor and outdoor units 114 SPM 40 T target discharge pipe temperature control 67 thermistor cooling only model 56 heat pump model 55 thermistor or related abnormality indoor unit 113 thermistor or related abnormality outdoor unit 128 thermistor resistance check 141 the...

Page 224: ... 336 RPR Oostende The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N V Daikin Europe N V has compiled the content of this publication to the best of its knowledge No express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services pr...

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