Daikin FTYN25GXV1B Service Manual Download Page 82

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SiBE01-829

Removal Procedure

Part 7

Removal Procedure

1. Indoor Unit.............................................................................................72

1.1

Removal of Air Filter...............................................................................72

1.2

Removal of Front Grille ..........................................................................75

1.3

Removal of Horizontal Blades / Vertical Blades .....................................78

1.4

Removal of Electrical Parts Box / PCB / Swing Motor............................80

1.5

Removal of Heat Exchanger ..................................................................86

1.6

Install of Drain Plug ................................................................................89

1.7

Removal of Fan Rotor / Fan Motor.........................................................90

2. Outdoor Unit..........................................................................................94

2.1

Removal of Panels .................................................................................94

2.2

Removal of Bellmouth and Left Side Plate.............................................96

2.3

Removal of Electrical Device Mounting Plate.........................................97

2.4

Removal of Propeller Fan and Fan Motor ..............................................98

2.5

Removal of Sound Blanket.....................................................................99

2.6

Removal of Partition Plate....................................................................101

2.7

Removal of Compressor.......................................................................103

Summary of Contents for FTYN25GXV1B

Page 1: ...SiBE01 829 Applied Models Non Inverter Pair Heat Pump SPLIT Pair Wall Mounted Type G Series...

Page 2: ...SiBE01 829 Table of Contents i Non Inverter Pair G Series zHeat Pump Indoor Unit FTYN25GXV1B FTY25GXV1 FTYN35GXV1B FTY35GXV1 Outdoor Unit RYN25GXV1B RY25GXV1 RYN35GXV1B RY35GXV1...

Page 3: ...n 18 1 6 Sleep Operation 20 1 7 POWERFUL Operation 21 1 8 Other Functions 22 2 Function of Thermistor 23 3 Control Specification 24 3 1 Four Way Valve Switching 24 3 2 3 Minute Standby 24 3 3 Compress...

Page 4: ...Check 68 5 3 Outdoor Unit Fan System Check 69 5 4 Hall IC Check 69 Part 7 Removal Procedure 71 1 Indoor Unit 72 1 1 Removal of Air Filter 72 1 2 Removal of Front Grille 75 1 3 Removal of Horizontal Bl...

Page 5: ...SiBE01 829 iv Table of Contents 2 Wiring Diagrams 113 2 1 Indoor Units 113 2 2 Outdoor Units 113 Index i Drawings Flow Charts iii...

Page 6: ...er cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shook If it is necessary to supp...

Page 7: ...trical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or w...

Page 8: ...eat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the te...

Page 9: ...vent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions...

Page 10: ...to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type only Ca...

Page 11: ...Introduction SiBE01 829 x...

Page 12: ...SiBE01 829 List of Function 1 Part 1 List of Function 1 Functions 2...

Page 13: ...Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Chec...

Page 14: ...fort Control Auto Fan Speed Night Set Mode Indoor Unit Quiet Operation Worry Free Reliability Durability Auto Restart after Power Failure Night Quiet Mode Automatic Self Diagnosis Digital LED Display...

Page 15: ...Functions SiBE01 829 4 List of Function...

Page 16: ...SiBE01 829 Specifications 5 Part 2 Specifications 1 Specifications 6...

Page 17: ...Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 2 0 2 0 2 0 2 Power Consumption Rated W 37 37 37 38 Power Factor 79 7 79 7 80 4 82 6 Temp...

Page 18: ...vable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 2 0 2 0 2 0 2 Power Consumption W 37 37 37 38 Power Factor 84 1 84 1 84 1 86 4 Temperature Control Microcomputer Control...

Page 19: ...Specifications SiBE01 829 8 Specifications...

Page 20: ...SiBE01 829 Printed Circuit Board Connector Wiring Diagram 9 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 10 1 1 Indoor Unit 10...

Page 21: ...nnector for signal receiver PCB 8 S32 Connector for indoor heat exchanger thermistor 9 S33 Connector for outdoor heat exchanger thermistor 10 H1 Connector for compressor outdoor unit 11 H2 H4 Connecto...

Page 22: ...cuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 11 Control PCB Signal Receiver PCB S4 S5 S27 LED A J30 JC JA S32 R4670 S33 S6 S7 H5 H4 H3 V2 S1 H2 S2 V1 FU1 H1 LED1...

Page 23: ...Printed Circuit Board Connector Wiring Diagram SiBE01 829 12 Printed Circuit Board Connector Wiring Diagram...

Page 24: ...ermostat Control 16 1 4 Automatic Operation 17 1 5 Programme Dry Function 18 1 6 Sleep Operation 20 1 7 POWERFUL Operation 21 1 8 Other Functions 22 2 Function of Thermistor 23 3 Control Specification...

Page 25: ...e flap presses the warm air above the floor to reach the entire room Cooling Mode During cooling mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the ro...

Page 26: ...ng button is set to automatic Note 1 During POWERFUL operation fan operates at 1280 1370rpm 2 Fan stops during defrost operation 3 In time of thermostat OFF the fan rotates at following speed Cooling...

Page 27: ...temperature and the setpoint Cooling Thermostat OFF Room temperature setpoint 1 C Thermostat ON Room temperature setpoint 1 5 C Heating Thermostat OFF Room temperature setpoint 3 5 C Thermostat ON Roo...

Page 28: ...ction value cooling 0 C heating 1 5 C Mode switching point and operation ON OFF point are as follows Cooling Heating Room temperature setpoint 3 5 C Heating Cooling Room temperature setpoint 3 C Cooli...

Page 29: ...2 Mode change from HEAT FAN or AUTO HEAT DRY mode must run under cool mode with AUTO indoor fan for 12 minutes or until room temp set temp 1 C After this the DRY mode may run under either Zone A B C o...

Page 30: ...SiBE01 829 Functions Functions and Control 19 4 If set temp room temp 3 C then the operation is in Zone D ZONE D 30 sec ON OFF ON OFF 12 min Compressor L tap R8494...

Page 31: ...C after the second half an hour and total of 2 C after the following 1 hour This function will prevent excessive cooling during summer season When the unit is operating under heating mode the set temp...

Page 32: ...an speed and the target temperature will be converted to the following states for 20 minutes Ex POWERFUL operation in cooling mode Operation mode Fan speed Target temperature Cooling HH tap Set temp 2...

Page 33: ...ir Purifying Filter This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodorizing Filter in a single highly effective unit The filter traps microscopic particles decomp...

Page 34: ...ring cooling operation B Indoor Heat Exchanger Thermistor 1 The indoor heat exchanger thermistor is used to prevent freezing During the cooling operation if the temperature drops abnormally the operat...

Page 35: ...3 Minute Standby Prohibit to turn ON the compressor for 3 minutes after turning it off except when defrosting 3 3 Compressor Protection Function When the compressor turns ON it keeps running at least...

Page 36: ...high pressure Detail Conditions for starting Temperature of the indoor heat exchanger 68 C While controlling The compressor halts The outdoor fan switches ON OFF according to the temperature of the i...

Page 37: ...se cycle to prevent the outdoor heat exchanger being frosted The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing Detail Time chart Compressor Hea...

Page 38: ...ons 29 2 2 Names of Parts 31 2 3 Preparation Before Operation 34 2 4 AUTO DRY COOL HEAT FAN Operation 37 2 5 Adjusting the Airflow Direction 39 2 6 POWERFUL Operation 40 2 7 QUIET Operation 41 2 8 TIM...

Page 39: ...r 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 inst...

Page 40: ...s 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 electri...

Page 41: ...bris accumulate around the unit Leaves are a hotbed for small animals which can enter the unit Once in the unit such animals can cause malfunc tions smoke or fire when making contact with electrical p...

Page 42: ...SiBE01 829 Instructions Operation Manual 31 2 2 Names of Parts 4 Names of parts Indoor Unit 1 7 2 9 10 8 3 4 5 6 ON OFF 14 12 11 13...

Page 43: ...ch 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 controller is missing 12 Operation lamp green 13 TIMER lamp...

Page 44: ...s It changes the temperature setting 5 POWERFUL button POWERFUL operation page 13 6 MODE selector button To select the type of operation mode COOL DRY FAN HEAT AUTO page 10 7 QUIET button QUIET operat...

Page 45: ...es use batteries of the same type and replace the two old batteries together When the system is not used for a long time take the batteries out The batteries will last for approximately one year If th...

Page 46: ...wall a pillar or similar location with the screws procured locally 2 Place the remote controller in the remote controller holder vertically 3 Remove the remote controller from the remote controller h...

Page 47: ...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 cau...

Page 48: ...the mode setting in sequence COOL DRY FAN HEAT AUTO 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 tempera...

Page 49: ...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 COOL operation This air conditioner cools...

Page 50: ...e corner of a room the direction of the louvers should be facing away from the wall If they face the wall the wall will block off the wind causing the cooling or heating efficiency to drop Notes on fl...

Page 51: ...ERFUL operation is displayed on the LCD To cancel POWERFUL operation 2 Press POWERFUL button again disappears from the LCD NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together w...

Page 52: ...button displayed on the LCD To cancel QUIET operation 2 Press QUIET button again disappears from the LCD NOTE Note on QUIET operation QUIET operation cannot be used together with POWERFUL operation P...

Page 53: ...pears NOTE To use ON TIMER operation Check that the clock is correct If not set the clock to the present time page 9 3 Press ON TIMER SET button until the indicated time reaches the point you like Eve...

Page 54: ...ALIZED button until P1 blinks Press again to cycle between P1 and P2 Choose P1 or P2 2 Set your preferred setting 3 Leave the remote controller for 15 seconds without pressing any button and it will s...

Page 55: ...hour 1 C after the second half an hour and total of 2 C after the following 1 hour This function will prevent excessive cooling during summer season When the unit is operating under heating mode the...

Page 56: ...left rotating shafts of the front panel with the grooves and push them all the way in Gently close the front panel Push both ends and the center on the front panel CAUTION Units Don t touch the metal...

Page 57: ...into slots of the front panel Close the front panel slowly and push the panel at the 3 points 1 on each side and 1 in the middle The air filter and the Air purifying filter with bacteriostatic virusta...

Page 58: ...he breaker for the room air conditioner 3 Clean the air filters and set them again 4 Take out batteries from the remote controller Operation with dirty filters 1 cannot deodorize the air 2 cannot clea...

Page 59: ...ns when the air in the room is cooled into mist by the cold airflow during cooling operation The indoor unit gives out odour This happens when smells of the room furniture or cigarettes are absorbed i...

Page 60: ...windows and doors closed Are the airflow 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...

Page 61: ...emoved from the remote controller and disposed of separately in accordance with relevant local and national legislation In certain operating conditions the inside of the air conditioner may get foul a...

Page 62: ...ntrol High Pressure Control or Indoor Heat Exchanger Thermistor Abnormality 57 4 4 Fan Motor or Related Abnormality AC motor 59 4 5 Thermistor or Related Abnormality 60 4 6 High Pressure Control in Co...

Page 63: ...hen a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions disabling equipment operation 2 When a signal transmission error occurs between the indoor and ou...

Page 64: ...ure of 2 to 10 cycles can stop air conditioner operation Operation lamp OFF Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 24 C or higher and co...

Page 65: ...sequence 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 ON timer or OFF timer cancel but...

Page 66: ...64 Indoor Unit A1 Indoor unit PCB abnormality 56 A5 Freeze up protection control high pressure control or indoor heat exchanger thermistor abnormality 57 A6 Fan motor or related abnormality AC motor...

Page 67: ...ro cross detection in approximately 1 25 continuous seconds Supposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models Connector con...

Page 68: ...ndoor heat exchanger thermistor is used to determine thermistor error Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoor heat exchan...

Page 69: ...ficient air passage Clean the air filter Clean the heat exchanger Check the intake air filter Check the dust accumulation on the indoor unit heat exchanger Is there any short circuit Is it very dirty...

Page 70: ...r due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 69 NO NO NO Check No 16 Check Hall IC NO NO NO YES YES YES YES YES YES R8504 Caution Be sure to turn off power switch before conn...

Page 71: ...r less during compressor operation Reference Indoor and outdoor heat exchanger thermistor 1150k or more Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check N...

Page 72: ...rmistor input is more than 4 96 V or more or 0 04 V or less during compressor operation Reference Room temperature thermistor 30 or less or 490k or more Supposed Causes Faulty thermistor Faulty PCB Tr...

Page 73: ...he limit The temperature detected by the outdoor heat exchanger thermistor is used to determine the abnormal thermistor Malfunction Decision Conditions Activated when the temperature being sensed by t...

Page 74: ...ened R8506 Replace the fan motor Repair the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Correct the connection Change the air outlet grille position Clean the h...

Page 75: ...els interconnected Wrong indoor unit PCB mounted Indoor unit PCB defective Wrong outdoor unit PCB mounted or defective Troubleshooting Caution Be sure to turn off power switch before connect or discon...

Page 76: ...exchanger temperature Malfunction Decision Conditions When the compressor operates for 30 min with the indoor heat exchanger temperature is C and then check for 5 more min before determining insuffic...

Page 77: ...tion Open the stop valve Repair the pipe flare or replace the square union Check the power transistor harness for looseness Correct it as required Also replace cracked pipe if any Check the pipes for...

Page 78: ...the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below R25 C 10k B 3450 Temperature C Thermistor k 20 72 7...

Page 79: ...winds blowing in the opposite direction Does the discharged air from other outdoor unit cause an increase of the suction air temperature Change the position of the air discharge grille or the install...

Page 80: ...ty PCB Replace the PCB Failure of 2 faulty Hall IC Replace the fan motor Both 1 and 2 result Replace the PCB Check the fan motor lead wire connector for secure connection Abnormal YES NO YES Continuit...

Page 81: ...Check SiBE01 829 70 Service Diagnosis...

Page 82: ...arts Box PCB Swing Motor 80 1 5 Removal of Heat Exchanger 86 1 6 Install of Drain Plug 89 1 7 Removal of Fan Rotor Fan Motor 90 2 Outdoor Unit 94 2 1 Removal of Panels 94 2 2 Removal of Bellmouth and...

Page 83: ...SiBE01 829 Others 105 Part 8 Others 1 Others 106 1 1 Trial Operation and Testing 106 1 2 Pump Down Operation 106 1 3 Jumper Settings 107...

Page 84: ...r in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off...

Page 85: ...tallic cover to remove it 4 claws on the electrical parts box Cut the jumper JA on PCB Wireless remote controller Cut the jumper J4 1 3 2 Jumper Setting R4758 Address J4 CUT EXIST 1 2 Metallic cover P...

Page 86: ...Others SiBE01 829 108 Others...

Page 87: ...SiBE01 829 Appendix 109 Part 9 Appendix 1 Piping Diagrams 110 1 1 Indoor Units 110 1 2 Outdoor Units 111 2 Wiring Diagrams 113 2 1 Indoor Units 113 2 2 Outdoor Units 113...

Page 88: ...5CuT FIELD PIPING COOLING 7 0CuT 6 4CuT HEATING 7 0CuT INDOOR UNIT 9 5CuT THERMISTOR ON HEAT EXCH REFRIGERANT FLOW CROSS FLOW FAN 7 0CuT FIELD PIPING 4D059933 CROSS FLOW FAN FAN MOTOR 7 0CuT HEAT EXCH...

Page 89: ...UFFLER WITH FILTER ACCUMULATOR LIQUID STOP VALVE 6 4CuT 9 5CuT 6 4CuT FOUR WAY VALVE ON HEATING CAPILLARY TUBE 2 6 4CuT 7 0CuT 3D060002 OUTDOOR UNIT 6 4CuT HEATING CAPILLARY TUBE 2 4 8CuT 9 5CuT COMPR...

Page 90: ...STOP VALVE FIELD PIPING ACCUMULATOR FOUR WAY VALVE ON HEATING LIQUID STOP VALVE 6 4CuT HEATING 6 4CuT M 9 5CuT 3D060140 GAS STOP VALVE 12 7CuT COMPRESSOR 7 9CuT 9 5CuT CAPILLARY TUBE 2 9 5CuT FIELD P...

Page 91: ...SiBE01 829 Wiring Diagrams Appendix 113 2 Wiring Diagrams 2 1 Indoor Units FTYN25GXV1B FTYN35GXV1B FTY25GXV1 FTY35GXV1 2 2 Outdoor Units RYN25GXV1B RYN35GXV1B RY25GXV1 RY35GXV1...

Page 92: ...Wiring Diagrams SiBE01 829 114 Appendix...

Page 93: ...ol 31 diagnosis mode 61 drain hose 92 95 drain plug 95 E electrical device mounting plate 103 electrical parts box 86 error codes 00 63 A1 64 A5 65 A6 67 C4 68 C9 68 F6 69 J6 71 F F6 69 fan motor 86 9...

Page 94: ...86 S2 16 S26 16 S27 16 S32 16 S33 16 S4 16 S5 16 S6 16 86 S7 16 86 safety precautions 35 self diagnosis digital display 27 service check function 60 service cover 81 shelter 89 103 signal receiver 78...

Page 95: ...3B 116 FTN25DV3B 116 FTN35DAV3B 116 FTN35DV3B 116 FTYN25DAV3B 116 FTYN25DV3B 116 FTYN35DAV3B 116 FTYN35DV3B 116 RN25DAV3B 117 RN25DV3B 117 RN35DAV3B 117 RN35DV3B 117 RYN25DAV3B 117 RYN25DV3B 117 RYN35...

Page 96: ...SiBE01 829 iv Drawings Flow Charts...

Page 97: ...Specifications designs and other content appearing in this brochure are current as of May 2008 but subject to change without notice SiBE 01 829 Printed in Japan 05 2008 B AK...

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