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Troubleshooting

SiBE01-829

Service Diagnosis

4.5

Thermistor or Related Abnormality

4.5.1

Heat Exchanger Thermistor

Remote
Controller
Display

Method of
Malfunction
Detection

The temperatures detected by the indoor and outdoor heat exchanger thermistors are used to
determine thermistor errors.

Malfunction
Decision
Conditions

When the indoor and outdoor heat exchanger thermistor input is 0 V during compressor
operation

∗

Supposed
Causes

Faulty connector connection

Faulty thermistor

Faulty PCB

Troubleshooting

Check No.06

Refer to P.55

Indoor heat exchanger thermistor

Outdoor heat exchanger thermistor

YES

(R8513)

Check No. 06

Check the thermistor resistance
value.

YES

Caution

Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

Correct the connection.

Replace the thermistor.

Replace the indoor unit PCB.

Is it normal?

Check the connector connection.

Содержание FTY25GXV1

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

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

Страница 3: ... 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 24 3 1 Four Way Valve Switching 24 3 2 3 Minute Standby 24 3 3 Compressor Protection Function 24 3 4 Freeze up Protection Control 24 3 5 Heating Peak cut Control 25 3 6 Defrost Control 26 Part 5 Operation Manual 27 1 System Configuration 28 2...

Страница 4: ... 5 3 Outdoor Unit Fan System Check 57 5 4 Hall IC Check 57 Part 7 Removal Procedure 59 1 Indoor Unit 60 1 1 Removal of Air Filter 60 1 2 Removal of Front Panel 62 1 3 Removal of Front Grille 63 1 4 Removal of Horizontal Vertical Blades and Safety Net 65 1 5 Removal of Electrical Box 68 1 6 Removal of PCB Swing Motor 72 1 7 Removal of Heat Exchanger 76 1 8 Removal of Fan Rotor 79 1 9 Exchange of Dr...

Страница 5: ...SiBE01 829 iv Table of Contents Index i Drawings Flow Charts iii ...

Страница 6: ...wer 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 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 is discharged during the repair work ...

Страница 7: ...ctrical 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 wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Be sure to co...

Страница 8: ...heat 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 terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire...

Страница 9: ...event 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 of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the...

Страница 10: ...e 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 Caution Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A cau...

Страница 11: ...Introduction SiBE01 829 x ...

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

Страница 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 Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual INTELLIGENT EYE Hydrophilic Treatment of Outdoor Heat Exchanger Quick Warming Functi...

Страница 14: ...mfort 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 Outdoor Unit Quiet Operation Manual Wiring Error Check INTELLIGENT EYE Anticorrosion Treatment of Outdoor Heat Exchanger Quick Warming Function Hydrophilic Treatment of Outdoor Heat Exchanger Hot Sta...

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

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

Страница 17: ...rizontal 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 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 288 800 204 288 800 204 Packaged Dimensions H W D mm 288 874 360 288 874 360 Weight kg 9 9 Gross Weight kg 13 13...

Страница 18: ... Removable 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 Microcomputer Control Dimensions H W D mm 288 800 204 288 800 204 Packaged Dimensions H W D mm 288 874 360 288 874 360 Weight kg 9 9 Gross Weight kg 13 13 Operation Sound H M L SL dBA 38 32 27 2...

Страница 19: ...Specifications SiBE01 829 8 Specifications ...

Страница 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 ...

Страница 21: ... Note Other designations PCB 1 Control PCB PCB 2 Display PCB 1 CN_FANFB CN_FAN Connector for AC fan motor 2 CN_STP Connector for swing motor horizontal blades 3 CN_DISP Connector for display PCB 4 CN_ODCOIL Connector for outdoor thermistor 5 CN_TBTF Connector for terminal fuse 1 CN_MB Connector for control PCB 1 V1 Varistor 2 FUSE1 Fuse 3 15A 1 S1W ON OFF switch 2 H1P LED for operation green 3 H2P...

Страница 22: ... 829 Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 11 Control PCB Display PCB R8637 V1 FUSE1 CN_TBTF CN_FAN CN_STP CN_FANFB CN_DISP CN_ODCOIL CN_MB H2P H1P S1W ...

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

Страница 24: ...hermostat 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 24 3 1 Four Way Valve Switching 24 3 2 3 Minute Standby 24 3 3 Compressor Protection Function 24 3 4 Freeze up Protection Control 24 3 5 Heating Peak cut Control 25 3 6 Defrost Control 26 ...

Страница 25: ...he 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 room Wide Angle Louvres The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing...

Страница 26: ...ing 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 The fan keeps rotating at the set tap Heating The fan stops when the indoor heat exchanger temperature is below 30 C Airflow Rate Control for Heating The following drawing explains the principle for ...

Страница 27: ... temperature and the setpoint Cooling Thermostat OFF Room temperature setpoint 1 C Thermostat ON Room temperature setpoint 0 5 C Heating Thermostat OFF Room temperature setpoint 3 5 C Thermostat ON Room temperature setpoint 1 C OFF ON Room temperature setpoint R8488 0 5 C 1 C OFF OFF ON ON Room temperature setpoint R8489 3 5 C 1 C ...

Страница 28: ...lus correction value cooling 0 C heating 1 5 C Mode switching point and operation ON OFF point are as follows Cooling Heating Room temperature setpoint 4 C Heating Cooling Room temperature setpoint 3 C Cooling thermostat ON Room temperature setpoint 0 5 C Cooling thermostat OFF Room temperature setpoint 1 C Heating thermostat ON Room temperature setpoint 3 5 C Heating thermostat OFF Room temperatu...

Страница 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 or D as below 1 If room temp set temp 2 C the operation is in Zone A ZONE A 2 If 0 C room temp set temp 1 C then the operation is in Zone B ZONE B 3 If 1 C set temp room temp 2 C then the operation is...

Страница 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 ...

Страница 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 temperature is decreased by 1 C after the first half an hour 2 C after the second half an hour and total of 3 C after the following 1 hour This function will prevent night sweat during summer season This...

Страница 32: ...d 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 C Heating HH tap Set temp 2 C R8643 Target temp Fan Set temp Set temp 2 C POWERFUL ON POWERFUL OFF HH tap Set tap It counts 20 min also in the remote controller Ending condition or in 1 to 4 1 After the lap...

Страница 33: ...eration mode refers to the following table 1 8 4 Air Purifying Filter The Air purifying filter with bacteriostatic virustatic functions can be renewed by washing it with water once every 6 months We recommend replacing it once every 3 years 1 8 5 Air Filter The filter net is treated with mold resisting agent TBZ harmless colorless and odorless Due to this treatment the amount of mold growth is muc...

Страница 34: ...uring 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 operating frequency becomes lower then the operation must be halted 2 The indoor heat exchanger thermistor is used for high pressure control during heating operation Four way valve Compressor R4733 A B ...

Страница 35: ...2 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 180 sec except when defrosting 3 4 Freeze up Protection Control Outline During cooling dry operation freeze up protection control is activated according to the temperature of the indoor heat exchang...

Страница 36: ...l 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 indoor heat exchanger Conditions for ending Temperature of the indoor heat exchanger 50 C only for the first time or Reset manually by pressing ON OFF button for the second time R8497 OFF OFF ON ON 50...

Страница 37: ...rse 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 Heating Defrosting Heating Four way valve Outdoor unit fan Indoor unit fan ON OFF ON OFF ON OFF ON OFF 50sec 60sec 230sec Hot start function 50sec R8498 ...

Страница 38: ...m Configuration 28 2 Instructions 29 2 1 Remote Controller 29 2 2 AUTO DRY COOL HEAT FAN Operation 30 2 3 Adjusting the Airflow Direction 32 2 4 POWERFUL Operation 33 2 5 QUIET Operation 34 2 6 TIMER Operation 35 2 7 PERSONALIZE Operation 36 2 8 SLEEP Operation 37 ...

Страница 39: ...er 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 over...

Страница 40: ... again to stop it 4 TEMPERATURE adjustment buttons 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 operation page 14 8 SWING button Ajusting the airflow direction page 12 9 OFF TIMER button page 15 10 ON TIMER button page 15 11 PERSONALIZED button page 16 ...

Страница 41: ...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 temperature setting 4 Press TEMPERATURE adjustment button If you want to change the temperature unit C F press and simultaneously DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not varia...

Страница 42: ... 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 the room by blowing the hot air in the room outside so if the outside temperature is high the performance of the air conditioner drops Note on DRY operation The computer chip works to rid the room o...

Страница 43: ...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 flaps and louvers angles When SWING button is selected the flaps swinging range depends on the operation mode See the figure ATTENTION Always use a remote controller to adjust the flaps angle If you att...

Страница 44: ...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 with QUIET Operation page 14 Priority is given to the function of whichever button is pressed first POWERFUL Operation can only be set when the unit is running Pressing the operation stop button causes...

Страница 45: ...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 Priority is given to the function of whichever button is pressed first The unit might lose capacity when QUIET operation In DRY mode and FAN mode QUIET operation is not available MODE SLEEP SET CLR ON T...

Страница 46: ...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 Every pressing of the button increased the time setting by 30 minuites Holding down the button changes the setting rapidly is displayed The TIMER lamp lights up To cancel the ON TIMER operation 4 Press O...

Страница 47: ...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 save the setting into the programme To use PERSONALIZE operation 4 Press PERSONALIZED button once to activate the P1 setting and press again to cycle between P1 and P2 Press any key to deactivate the p...

Страница 48: ...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 temperature is decreased by 1 C after the first half an hour 2 C after the second half an hour and total of 3 C after the following 1 hour This function will prevent night sweat during summer season This ...

Страница 49: ...Instructions SiBE01 829 38 Operation Manual ...

Страница 50: ...ontrol High Pressure Control or Indoor Heat Exchanger Thermistor Abnormality 45 4 4 Fan Motor or Related Abnormality AC motor 47 4 5 Thermistor or Related Abnormality 48 4 6 High Pressure Control in Cooling or Outdoor Heat Exchanger Thermistor Abnormality 50 4 7 Hardware Error Tact Switch Pin Short 52 4 8 Insufficient Gas 53 5 Check 55 5 1 Thermistor Resistance Check 55 5 2 Installation Condition ...

Страница 51: ...When 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 outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp ON OFF Operation lamp green R8499 ...

Страница 52: ...lure 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 cooling operation cannot be used when the outdoor air temperature is below 10 C Diagnosis with remote controller indication 43 Equipment operates but does not cool or does not heat Check for wiring and...

Страница 53: ...equence 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 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 13 C7 25 UA 2 U4 14 A3 26 UH 3 L5 15 H8 27 P4 4 E6 16 H9 28 L3 5 H6 17...

Страница 54: ...t 52 Indoor Unit A1 Indoor unit PCB abnormality 44 A5 Freeze up protection control high pressure control or indoor heat exchanger thermistor abnormality 45 A6 Fan motor or related abnormality AC motor 47 C4 Heat exchanger thermistor abnormality 48 C9 Room temperature thermistor abnormality 48 Outdoor Unit F6 High pressure control in cooling or outdoor heat exchanger thermistor abnormality 50 J6 He...

Страница 55: ...res data or settings of air conditioner The condition of EEPROM is used to detect the PCB abnormality Malfunction Decision Conditions When the controller is unable to read data from EEPROM Supposed Causes Faulty indoor unit PCB Troubleshooting Replace the indoor unit PCB Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Страница 56: ...indoor 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 exchanger thermistor is above 68 C Freeze up protection When the indoor unit heat exchanger temperature is below 1 C during cooling operation Indoor Heat Exchanger Thermistor Abnormality When the input vol...

Страница 57: ...fficient 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 Is it very dirty Check the air passage YES NO Correct the connection Is it normal Check the connector connection Check No 06 Indoor unit heat exchanger thermistor check R8503 YES NO Replace the indoo...

Страница 58: ...due to faulty indoor unit PCB Troubleshooting Check No 16 Refer to P 57 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 connect or disconnect connector or parts damage may be occurred Replace the fan motor or control PCB Replace the fan motor Replace control PCB Measure the voltage between the white and black lead wires of t...

Страница 59: ...at exchanger thermistor input is 0 V during compressor operation Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 Refer to P 55 C4 Indoor heat exchanger thermistor J6 Outdoor heat exchanger thermistor YES R8513 NO Check No 06 Check the thermistor resistance value YES NO Caution Be sure to turn off power switch before connect or disconnect connect...

Страница 60: ...emperature thermistor input is more than 5 V or 0 V during compressor operation Reference Room temperature thermistor 30Ω or less or 490kΩ or more Supposed Causes Faulty thermistor Faulty PCB Troubleshooting Check No 06 Refer to P 55 Caution Be sure to turn off power switch before check the resistance value or parts damage may be occurred R8505 Check No 06 Check the thermistor resistance value YES...

Страница 61: ...he 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 the heat exchanger thermistor rises above 68 C Deactivated when the temperature drops below 50 C When the outdoor heat exchanger thermistor input is 5 V or more during compressor operation Supposed Causes The in...

Страница 62: ...pened 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 heat exchanger Change the installation location Check the installation space Check the connector connection Abnormal Normal YES Normal Normal Abnormal NO Abnormal Is it normal Judgment Check No 09 Che...

Страница 63: ...en the plastic casing is not properly installed and pressing the switch or the switch has quality problem Supposed Causes The casing is not installed properly and pressing the switch Faulty switch Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check if the casing is touching the ON OFF swich or not R8641 NO YES Replac...

Страница 64: ... 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 insufficient gas and system down Supposed Causes Refrigerant shortage refrigerant leakage Poor compression performance of compressor Indoor heat exchanger thermistor disconnected Stop valve closed Cooling Heating 25 20...

Страница 65: ...e in position 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 improper contact Correct as required Also replace cracked pipe if any Replace the indoor unit heat exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete Gas short...

Страница 66: ...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 10kΩ B 3450 Temperature C Thermistor kΩ 20 72 7 15 56 6 10 44 5 5 35 2 0 28 0 5 22 5 10 18 2 15 14 8 20 12 1 25 10 0 30 8 3 35 6 9 40 5 8 45 4 9 50 4 1 R4744 R25 10kΩ B 3450 75 50 25 0 15 0 15 30 45 kΩ ...

Страница 67: ...r 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 installation location Change the position of the air discharge grille or the installation location Change the installation location or direction Check the outside air temperature temperature of air taken in...

Страница 68: ...lty 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 Continuity Are the resistance at connector leads 1 red black 2 white black Check the fan capacitor for continuity Does the outdoor fan rotate Does the outdoor unit fan start just after the power is turned on ...

Страница 69: ...Check SiBE01 829 58 Service Diagnosis ...

Страница 70: ...al of Horizontal Vertical Blades and Safety Net 65 1 5 Removal of Electrical Box 68 1 6 Removal of PCB Swing Motor 72 1 7 Removal of Heat Exchanger 76 1 8 Removal of Fan Rotor 79 1 9 Exchange of Drain Hose 82 2 Outdoor Unit 84 2 1 Removal of Panels and Fan Motor 84 2 2 Removal of Solenoid Valve Electrical Box 93 2 3 Removal of Sound Blanket 97 2 4 Removal of Compressor 98 ...

Страница 71: ...p flickers immediately to confirm the signal reception 2 Removing the air filter 1 Put your fingers on the right and left projections of the front panel and open the panel to the position where it will stop 2 Slightly push up the knob at the center of the air filter The air filter is not marked for difference between the right and left sides The air filter can be set easily by inserting it along t...

Страница 72: ...he air filter and unfastening the projections from the air filter frame 3 Remove the air purifying filter from its frame at 5 positions by bending it To prevent the damage do not remove the flame when cleaning the filter The shape of filter varies depending on the model The air purifying filter is not marked for difference between the right and left sides Step Procedure Points R8570 Air filter R86...

Страница 73: ...according to the Removal of Air Filter 2 Slide the right rotary shaft to the left and release it The rotary shaft on the each side can be removed easily by sliding each shaft inwards 3 Slide the left rotary shaft to the right and release it 4 Remove the front panel Caution on Mounting When mounting the front panel fit the right and left rotary shafts one by one into the grooves and fully push them...

Страница 74: ... Panel No field setting switch is inside it You can remove the front grille without detaching the service cover 2 Pull out the service cover diagonally down in the direction of the arrow 2 Removing the front grille 1 Remove the 2 screws in the right and the left which fix the main body with the front grille 2 Undo the 3 hooks on the top of the front grille The front grille has 3 hooks on the cente...

Страница 75: ...ks 4 Pull the upper part of the front grille towards yourself 5 Lift the lower part up and then remove the front grille Caution on Mounting When mounting the front grille make sure that the hooks are fastened as they were Step Procedure Points Left Center Right R8030 R8578 Left Center Front grille Right R8579 ...

Страница 76: ...lade 2 Unfasten the center fixing shaft while bending the horizontal blade slightly Cautions on Mounting The center fixing shaft can be removed easily by bending the blade Cautions on Mounting 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 and left pivots 3 Unfasten the left fixing shaft of the horizontal blade 4 Unfasten t...

Страница 77: ...ing the safety net 1 Unfasten the hooks at the lower part with a flat screwdriver 2 Unfasten the hooks at the upper 2 positions 3 Remove the safety net toward yourself Repeat the same procedure to remove the safety net on the other side Step Procedure Points R8582 R8583 R8584 R8585 ...

Страница 78: ...of blades is not marked for difference between right and left 1 Unfasten the hooks at the upper 2 positions 2 Unfasten the 3 hooks at the shaft mounting part by pressing them with a flat screwdriver 3 Remove the vertical blade toward yourself Repeat the same procedure to remove the vertical blade on the other side Step Procedure Points Hooks R8586 R8587 R8588 R8589 ...

Страница 79: ...ove the front grille according to the Removal of Front Grille 1 The figure shows the connections of wire harnesses 2 Remove the screw of the electric wire retaining plate The thermal fuse is a part of the terminal board 3 Loosen the screws of the terminal board and disconnect the connecting wires 4 Pull out the heat exchanger thermistor Terminal board Electrical box Electric wire retaining plate R...

Страница 80: ... Disconnect the earth wire by removing the screw 2 Disconnect the connector of the fan motor CN_FANFB 3 Disconnect the connector of the swing motor CN_STP 4 Disconnect the connector of the fan motor CN_FAN Step Procedure Points R8594 R8595 CN_FANFB R8596 CN_STP R8597 CN_FAN ...

Страница 81: ...edure 5 Remove the fixing screw of the electrical box 6 Remove the screw of cable fixture for thermistor cable 7 Disconnect the connecting wire for thermistor cable Step Procedure Points R8598 R8599 R8600 Thermistor cable outdoor unit side ...

Страница 82: ...or Unit Removal Procedure 71 8 Pull the electrical box towards yourself 9 When mounting fit the position of the hook and the groove There are a groove and a hook on the rear side Step Procedure Points R8601 R8602 Hook ...

Страница 83: ...edure Points 1 Removing the shelter Preparation Remove the electrical box according to the Removal of Electrical Box 1 To remove the shelter 1 unfasten the hooks at the upper 2 positions of the shelter 2 Unfasten the hook at the lower position and remove the shelter 1 3 Lift the shelter 2 and unfasten the 2 hooks 4 Slide the shelter 2 and remove R8603 Hooks Shelter 1 Hook R8604 R8605 Hooks Shelter...

Страница 84: ...e the electrical box according to the Removal of Electrical Box 1 Lift the lower part of the display PCB to remove 2 Disconnect the connector CN_MB from the display PCB 3 The figure shows the names of the display PCB component parts Step Procedure Points R8606 R8607 ON OFF switch TIMER lamp Signal receiver CN_MB Operation lamp R8608 ...

Страница 85: ...trol PCB unfasten the 2 hooks at the upper part from the rear side 6 Lift up the upper part of the control PCB and remove 7 The figures show the names of the control PCB component parts CN_STP To swing motor CN_DISP To display PCB CN_FANFB CN_FAN To fan motor Step Procedure Points CN_DISP CN_ODCOIL CN_TBTF R8609 R8610 R8611 R8612 CN_FAN CN_STP CN_FANFB CN_ DISP FUSE 1 3 15 A 250 V ...

Страница 86: ...SiBE01 829 Indoor Unit Removal Procedure 75 3 Removing the swing motor 1 Remove the screw of the swing motor 2 Disconnect the connector Step Procedure Points R8613 Swing motor R8614 R8615 ...

Страница 87: ...d and the stop valve being open air may be sucked in to generate an over pressure in refrigeration cycle thus resulting in pipe rupture or accidental injury If the drain hose is embedded in the wall disconnect the drain hose beforehand 1 Remove the screws which fix the heat exchanger to the installation plate 2 Lift the indoor unit by a wooden base 3 Place a plastic bag under the drain pan to prev...

Страница 88: ...hen the pipes are disconnected protect the both openings of pipe side and unit side from entering of moisture 1 Remove the indoor unit from the installation plate 2 Release the hook of the piping fixture on the back of the unit Step Procedure Points R8018 Gas piping Liquid piping R8618 Auxiliary piping Piping fixture R8038 R8039 ...

Страница 89: ...ng the heat exchanger be sure to wear gloves or wrap it with cloth before proceeding to the work You may be injured by the fins 5 Push and undo the heat exchanger fixing hook on the right side and lift up the heat exchanger 6 Pull the heat exchanger to the front side and undo the hooks completely and then lift it Step Procedure Points R8619 R8620 Heat exchanger fixing hook R8043 Heat exchanger ...

Страница 90: ... before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the heat exchanger according to the Removal of Heat Exchanger 1 Loosen the screw of the side panel right 2 Undo the hook of the side panel by a flat driver back 3 Remove the side panel right Bottom frame assembly Right side panel Cross flow fan R8621 R8622 R8623 ...

Страница 91: ...otor and fan motor 1 Remove the screw of the fan motor right 2 Unfasten the hook of the motor fixture to remove 3 Lift up the right side and slide then remove the fan rotor 4 Remove the screw of the fan rotor Step Procedure Points R8624 R8625 R8626 Fan rotor R8627 ...

Страница 92: ...SiBE01 829 Indoor Unit Removal Procedure 81 5 Remove the fan motor 6 Unfasten the hook of the bearing by a flat driver 7 Remove the bearing Step Procedure Points R8628 Fan motor R8629 R8630 ...

Страница 93: ...ng off all power supplies before disassembling work Step Procedure Points 1 Remove the fixing screw on the right side and remove the drain hose To prevent water leakage make sure to mount the fixing screw as it was 2 Remove the drain cap located at the left side Use a 4mm Allen wrench R8631 Drain hose Fixing screw R8632 Drain cap R8633 ...

Страница 94: ...rt the drain hose to the left side and tighten with the heat insulate fixing screw Caution Do not thrust in the drain plug with a sharp pointed tool like a screwdriver The drain plug may be broken resulting in water leakage Step Procedure Points R8634 ...

Страница 95: ... power supplies before disassembling work Step Procedure Points 1 Features Take care not to cut your finger by the fins of the heat exchanger The stop valve cover is united with the shelter When reassembling make sure to fit the 5 hooks 1 Loosen the screw of the stop valve cover Pull down the stop valve cover and remove it DAIKIN INVERTER R8529 Handle R8528 R7188 R7189 ...

Страница 96: ...e 85 2 Remove the panels 1 Loosen the 2 screws right left and lift the top panel 2 Loosen the 4 screws of the discharge grille The discharge grille has 4 hooks Step Procedure Points DAIKIN INVERTER Top panel R8530 DAIKIN INVERTER R8531 R8532 ...

Страница 97: ... 86 Removal Procedure 3 Loosen the 8 screws of the front panel 4 Lift the panel to undo the hooks Pull and remove the front panel The front panel has 4 hooks Step Procedure Points DAIKIN INVERTER R8533 Front panel R8534 Hooks ...

Страница 98: ...nding 1 Unscrew the washer fitted nut M10 of the propeller fan with a spanner 2 Remove the propeller fan Align mark of the propeller fan with D cut section of the motor shaft when reassembling 3 Remove the terminal cover Step Procedure Points R8535 Propeller fan D cut R7197 Terminal cover R8536 ...

Страница 99: ...Outdoor Unit SiBE01 829 88 Removal Procedure 4 Loosen the screw No 5 5 Disconnect the connectors 6 Detach the fan motor lead wire Step Procedure Points R8537 R8538 R8539 ...

Страница 100: ...ing fit the lower hook into the bottom frame 8 Loosen the 2 fixing hooks and release the lead wire 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 Fan motor fixing frame R8565 R7206 R8540 Hook Hook R3249 Lead wire Propeller fan ...

Страница 101: ...Outdoor Unit SiBE01 829 90 Removal Procedure 9 Loosen the 4 screws to remove the fan motor AC fan motor 10 Remove the fan motor Step Procedure Points R8541 Screws R8542 ...

Страница 102: ...iBE01 829 Outdoor Unit Removal Procedure 91 4 Remove the right side panel 1 Loosen the 2 screws on the rear side 2 Loosen the 4 screws on the right side Step Procedure Points R8543 R7210 Right side panel ...

Страница 103: ...SiBE01 829 92 Removal Procedure 3 Loosen the screw and lift the connection port to remove When reassembling make sure to fit the hook 4 Lift up the right side panel to remove Step Procedure Points R8544 R8545 R8546 ...

Страница 104: ...ng Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the top panel Disconnect the connector for fan motor 1 Remove the electrical box 1 Cut the clamp 2 Release the thermistor wire 3 Pull and remove the thermistor R8547 R8548 R8549 ...

Страница 105: ...Outdoor Unit SiBE01 829 94 Removal Procedure 4 Loosen the screw of the solenoid valve 5 Remove the valve 6 Loosen the nut M8 to remove the terminal cover Step Procedure Points R8550 R8551 R8638 R8552 ...

Страница 106: ... Outdoor Unit Removal Procedure 95 7 Disconnect the connector 8 Loosen the two screws 9 Undo the hook and lift the electrical box Step Procedure Points R8553 Purple C Blue R Red S R8554 Electrical box R8555 Hook ...

Страница 107: ...Outdoor Unit SiBE01 829 96 Removal Procedure 10 Remove the electrical box Step Procedure Points R8556 ...

Страница 108: ...r supplies before disassembling work Step Procedure Points Remove the outer panels Remove the electrical box 1 Remove the sound blanket 1 Untie the strings and open the sound blanket 2 Lift and remove the sound blanket body as it is opened Since the piping ports on the sound blanket are torn easily remove the blanket carefully Sound blanket R8557 R8558 ...

Страница 109: ...ire it will cause to arise toxic gas 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 Be careful so as not to burn the heat exchanger fin Warning Since it may happen that refrigeration oil in the compressor will catch fire prepare wet cloth so as to extinguish fire immediately ...

Страница 110: ...tion 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 Note Do not use a metal saw for cutting pipes by all means because the sawdust come into the circuit 4 Heat up the brazed part of the suction side and disconnect 5 Lift the compressor up and remove it Ste...

Страница 111: ...Outdoor Unit SiBE01 829 100 Removal Procedure ...

Страница 112: ...SiBE01 829 Others 101 Part 8 Others 1 Others 102 1 1 Trial Operation and Testing 102 1 2 Pump Down Operation 102 ...

Страница 113: ...er 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 the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again 1 2 Pump Down Operation In order to protect the environment be sure to pu...

Страница 114: ...SiBE01 829 Appendix 103 Part 9 Appendix 1 Piping Diagrams 104 1 1 Indoor Units 104 1 2 Outdoor Units 105 2 Wiring Diagrams 107 2 1 Indoor Units 107 2 2 Outdoor Units 107 ...

Страница 115: ... 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 EXCHANGER REFRIGERANT FLOW 12 7CuT THERMISTOR ON HEAT EXCH FIELD PIPING 12 7CuT 4 8CuT COOLING 7 0CuT 6 4CuT HEATING M 7 0CuT 7 0CuT INDOOR UNIT FIELD PIPING 4D059934 ...

Страница 116: ...MUFFLER 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 COMPRESSOR COOLING PROPELLER FAN 7 9CuT 9 5CuT GAS STOP VALVE MUFFLER 6 4CuT 6 4CuT 12 7CuT MUFFLER STRAINER FIELD PIPING 9 5CuT 7 9CuT 6 4CuT REFRIGERANT FLOW CHECK VALVE HEAT EXCHANGER 4 8CuT 6 4CuT MUF...

Страница 117: ...S 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 PIPING MUFFLER 9 5CuT 6 4CuT 6 4CuT 6 4CuT OUTDOOR UNIT CHECK VALVE 9 5CuT FOUR WAY VALVE ON HEATING 6 4CuT 7 0CuT HEATING 4 8CuT STRAINER COOLING ACCUMULATOR CAPILLARY TUBE 1 MUFFLER WITH FILTER HEAT...

Страница 118: ...SiBE01 829 Wiring Diagrams Appendix 107 2 Wiring Diagrams 2 1 Indoor Units FTYN25GXV1B FTYN35GXV1B FTY25GXV1 FTY35GXV1 2 2 Outdoor Units RYN25GXV1B RYN35GXV1B RY25GXV1 RY35GXV1 ...

Страница 119: ...Wiring Diagrams SiBE01 829 108 Appendix ...

Страница 120: ...e 82 E electrical box 68 93 error codes 00 43 A1 44 A5 45 A6 47 C4 48 C9 49 F6 50 J6 48 U0 53 UA 52 F F6 50 fan motor 80 fan motor or related abnormality 47 fan motor removal of 87 fan rotor 79 fan speed control 15 four way valve switching 24 freeze up protection control 24 45 front grille 63 front panel 62 functions 2 fuse 10 fuse1 10 H H1P 10 H2P 10 Hall IC 15 47 Hall IC check 57 hardware error ...

Страница 121: ...t 66 self diagnosis digital display 22 service check function 42 signal receiving sign 22 sleep operation 20 37 solenoid valve 93 sound blanket 97 specifications 6 swing motor 72 T thermistor function 23 indoor heat exchanger thermistor 23 48 outdoor heat exchanger thermistor 23 48 thermistor or related abnormality 48 heat exchanger thermistor 48 room temperature thermistor 49 thermistor resistanc...

Страница 122: ...ufficient gas 53 O ON OFF button on indoor unit 22 operation lamp 40 outdoor unit fan system check 57 P piping diagrams FTY25GXV1 104 FTY35GXV1 104 FTYN25GXV1B 104 FTYN35GXV1B 104 RY25GXV1 106 RY35GXV1 106 RYN25GXV1B 105 RYN35GXV1B 105 POWERFUL operation 21 programme dry function 18 pump down operation 102 R remote controller 42 S service check function 42 sleep operation 20 T thermistor 23 thermi...

Страница 123: ...SiBE01 829 iv Drawings Flow Charts ...

Страница 124: ...Specifications designs and other content appearing in this brochure are current as of June 2008 but subject to change without notice SiBE 01 829 Printed in Japan 06 2008 B AK ...

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