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Daikin RK25JVE9 Сервис мануал онлайн [145/162] 602447
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Содержание
- Inverter pair ftk x j rk x j series 1
- Manual 1
- Service 1
- Si04 115 1
- Cooling only 2
- Heat pump 2
- Indoor unit 2
- Inverter pair inverter pair inverter pair inverter pair ftk x j rk x j series ftk x j rk x j series ftk x j rk x j series ftk x j rk x j series 2
- Outdoor unit 2
- Table of contents 2
- Caution for diagnosis 2 3
- Functions 3
- General functionality 8 3
- Instruction 2 3
- Introduction v 3
- Inverter pair ftk x j rk x j series i 3
- Part 1 list of function 3
- Part 2 specification 3
- Part 3 printed circuit board connector wiring diagram 1 3
- Part 4 main function 7 3
- Part 5 system configuration 1 3
- Part 6 service diagnosis 1 3
- Printed circuit board connector wiring diagram and name 2 3
- Specifications 3
- Check 5 4
- Code indication on the remote controller 5 4
- For ftk25j ftk35j ftx25j ftx35j 4 4
- For rk25j rk35j rx25j rx35j 16 4
- Others 38 4
- Part 7 removal procedure 3 4
- Part 8 others 37 4
- Problem symptoms and measures 3 3 service check function 4 4
- Trouble shooting 6 4
- Drawings flow charts iii 5
- Index i 5
- Part 9 appendix 41 5
- Piping diagram 42 5
- Wiring diagram 45 5
- Caution in repair 6
- Introduction 6
- Safety cautions 6
- Warning 6
- Caution 7
- Cautions regarding products after repair 7
- Warning 7
- Caution 8
- Inspection after repair 8
- Warning 8
- Caution 9
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 9
- Using icons 9
- Using icons list 9
- Functions 10
- Indoor unit and outdoor unit 10
- Part 1 list of function 10
- Functions 11
- Functions si04 115 11
- Holding functions 11
- Indoor unit and outdoor unit 11
- List of function 11
- No functions 11
- Part 2 specification 12
- 230 240v 50hz 220 230v 60hz 13
- Cooling only 13
- Specification 13
- Specifications 13
- Specifications si04 115 13
- 230 240v 50hz 14
- Si04 115 specifications 14
- Specification 5 14
- Specification 15
- Specifications si04 115 15
- V 60hz 15
- Si04 115 specifications 16
- Specification 7 16
- V 50hz 16
- 230 240v 50hz 220 230v 60hz 17
- Heat pump 17
- Specification 17
- Specifications si04 115 17
- Si04 115 specifications 18
- Specification 9 18
- V 60hz 18
- Specification 19
- Specifications si04 115 19
- V 50hz 19
- Part 3 printed circuit board connector wiring diagram 20
- Ftk25 35j series ftx25 35j series 21
- Printed circuit board connector wiring diagram and name 21
- Control pcb 1 22
- Printed circuit board connector wiring diagram 13 22
- Si04 115 printed circuit board connector wiring diagram and name 22
- P c b 1 control p c b detail 23
- Rk25 35j series rx25 35j series 24
- P c b detail 25
- Part 4 main function 26
- Part 4 part 4 part 4 part 4 main function main function main function main function 26
- Available functions and no available functions 27
- Frequency control the following table shows the thermistors that control the frequency 27
- Functions of thermistors 27
- General functionality 27
- Location of thermistors the thermistors on the drawing below are used to control the system this control secures a proper cooling and prevents problems of the unit 27
- Frequency controlled functions the following table shows the different functions which are controlled by decreasing or increasing the frequency 28
- Main function 19 28
- Si04 115 general functionality 28
- Forced operating mode 29
- Modes there are two operating modes 29
- Normal operating mode 29
- Note the outdoor unit retains the operating mode when the thermostat is switched off 29
- Operating modes 29
- Overview the following table shows the different control modes of the split inverter room air conditioners 29
- Refer to pre heat operation on page 28 29
- Additional control parameters 30
- Drawing of inverter 30
- Forced cooling heating operation 30
- Frequency limits 30
- Frequency principle 30
- Initial settings 30
- Inverter principle to regulate the capacity a frequency control is needed the inverter makes it possible to vary the rotation speed of the compressor the following table explains the conversion principle 30
- Main control parameters the compressor is frequency controlled during normal operation the target frequency is set by the following 2 parameters coming from the operating indoor unit 30
- The difference between the room temperature and the set temperature 30
- The following drawing shows a schematic view of the inverter principle 30
- The load condition of the operating indoor unit 30
- The target frequency is adapted by additional parameters in the following cases 30
- Comfortable air conditioning a detailed adjustment is integrated to ensure a fixed room temperature it is possible to air condition with a small room temperature variation 31
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 31
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outside temperature is 0 c 31
- Forced cooling heating operation for more information refer to forced mode on page 24 31
- Frequency limits the following table shows the functions that define the minimum and maximum frequency 31
- Inverter features the inverter provides the following features 31
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature 31
- The regulating capacity can be changed according to the changes in the outside temperature and cooling heating load 31
- C if 3 c 32
- Conditions the following table shows the different conditions on which defrost control is based 32
- Defrost control 32
- During heating 32
- More than 6 minutes after the compressor has started up 32
- Principle defrost control is carried out by reversing the cycle from heating to cooling 32
- Start conditions defrost control is set by the following conditions 32
- Stop conditions defrost control is reset by the following conditions 32
- When condition 1 or 2 in the table below are applicable 32
- A way to enter the test operation mode by a remote controller 1 set on the desirous mode and push on off button operation on 2 two buttons center of temperature set buttons and mode button should be pushed simultaneously then a left figure of the liquid crystal temperature s display number starts to blink 3 moreover push mode button twice if the liquid crystal display becomes the test operation mode will startup under the mode displayed in a liquid crystal 33
- Forced mode 33
- Forced operation mode 33
- Although the liquid crystal display of the five step directions of the air flow is common for the modes of cooling dry heating as illustrated above in fact the range of the swing angle is slightly different in every operation mode the position a user set will be selected among the five positions calculated through the preliminary and evenly divided into four partitions which were taken from the upper and lower flap angle s range limits of each mode when auto swing is chosen the flap swings in the swing range which meets the operation mode selected 34
- Fan mode is available for the models of cooling only 34
- Main function 25 34
- Others 34
- Outline of the action it can be commanded for j type by means of a user setting to select either any one desired position among the five step directions of air flow adjusted on a remote controller or auto swing 34
- Si04 115 general functionality 34
- The vertical louver can be adjusted manually the movable range is 60 degrees for left or right and total 120 degrees 34
- Wide angle flaps diffuser louveres and autoswing 34
- Automatic air flow control for cooling 35
- Automatic air flow control for heating 35
- Control mode the airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature this is done through phase control and hall ic control 35
- Fan speed control for indoor units 35
- For more information about hall ic refer to hall ic check a6 on page 68 35
- General functionality si04 115 35
- Hh powerful 35
- Main function 35
- Note 1 during powerful operation fan operate h tap 50 70 rpm 2 fan stops during defrost operation 35
- Note when there is no operation and the night set mode turns on the step is low refer to night set mode on page 29 35
- Phase steps phase control and fan speed control contains 8 steps lll ll l ml m hm h and hh 35
- Refer to automatic airflow rate control on page 26 35
- Step cooling heating dry mode lll heating thermostat off j type 800 980 rpm during powerful operation 1050 rpm ll l 35
- The following drawing explains the principle for fan speed control for heating 35
- The following drawing explains the principle of fan speed control for cooling 35
- Within this range the airflow rate is automatically controlled when the airflow adjusting button is set to automatic 35
- Caution 36
- Control the following drawing explains the fan speed control 36
- D c the outdoor fan stays running at the same speed for e seconds 36
- Fan off delay when the compressor turns off and 36
- Fan speed control for outdoor units 36
- J type operates the outdoor unit fans in the cooling mode even at the condition that a compressor is not operated 36
- 1 decision of the dry setting temperature 37
- 11 c the compressor is warmed up by passing a single phase u v phase current through the compressor motor to speed up the start the power consumption is 30 40w 37
- An operation will start with dry mode except dry 37
- C room temp 24 c room temp at the entering room temp 1 c at the entering room temp 18 c 18 c 17 c 37
- C room temp room temp at the entering room temp 2 c at the entering 37
- C to fan starts to avoid cold draft 37
- Changing to dry mode thermostat on off point is decided in accordance with the following conditions 37
- Dry mode the dry mode removes humidity while maintaining the room temperature the temperature and fan cannot be regulated during dry mode 37
- Frequency command 37
- General functionality si04 115 37
- General functions 37
- Hot start function during defrosting or when the thermostat is on in heating mode the indoor heat exchanger temperature 37
- Main function 37
- Pre heat operation 37
- Room temp cond at entering dry set temp thermostat on thermostat off temp 37
- The frequency command is decided based on a room temperature zone the room temperature zone is decided as follows 37
- When entering the following dry mode stop 37
- When the equipment has stopped and 37
- Fan speed changes the rotation speed every time when a thermostat switches over on and off 38
- Night set mode the night set mode is activated when the off timer is set it restricts the operation frequency to minimize the noise 38
- Required fan speed 38
- The frequency command for every zone is stated below please note that an operation will not carry out in the commanded frequency sometimes in case a protection control like a freeze protection etc will be actuated 38
- When the thermostat becomes off fan continues to operate 10 minutes more with low speed so as to prevent recovery of humidity caused by reevaporation of the drain water and then stops 38
- A micro computer in an indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20msec 10 100msec it judges human is in the room as the motion signal is on 39
- General functionality si04 115 39
- In case of fan mode the fan speed reduces by 50 rpm 39
- Intelligent eye 39
- Main function 39
- Outline the function that detects existence of humans in the air conditioned room and reduces the capacity when no humans are available in the room in order to save electricity by means of a human motion sensor 39
- Processing 1 detection method by human motion sensor 39
- Since the set temperature is shifted by 2 c higher for 40 minutes compressor speed becomes low and can realize energy saving operation but as thermostat is prone to be off by the fact that the set temperature has been shifted the thermostat off action is prohibited in 40 minutes so as to prevent this phenomena after this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the 39
- The motions for example in cooling 39
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output 39
- When a micro computer doesn t have a signal from the sensor in 20 minutes it judges that no body is in the room and turns off the human detection led operating the unit in temperature sifted 2 c from the set temperature cooling 2 c higher dry 1 c higher and auto according to the operation mode at that time 39
- Good sleep cooling control 41
- Automatic operation 42
- Input current control 43
- Compressors stop in the stop area after compressor stops fan keeps operating in 800 rpm ll tap aiming at rising heat exchanger s temperature 44
- Dto freeze protection temperature of heat exchanger 44
- Freeze protection function in cooling 44
- Frequency alteration in the steady area is not conducted 44
- Frequency down is carried out in the step down area approximately every 2 4 hz min 44
- Frequency is increased approximately every 2 hz min in the up area 44
- Outline during cooling dry operation when the heat exchanger s temperature falls down excessively the capacity supply will be reduced frequency step down so as to prevent freeze of the heat exchanger and the creation of dew on a rotor caused by a excessive capacity supply to the indoor unit 44
- Processing 44
- The restriction for frequency is not conducted in the return area by means of freeze protection control 44
- Compressors stop in the stop area 45
- Dp peak cut temperature of heat exchanger 45
- Frequency alteration in the steady area is not conducted 45
- Frequency down is carried out in the step down area approximately every 4 hz 20sec 45
- Frequency is increased approximately every 2 hz min in the up area 45
- J type makes dp1 dp4 increase 2 c in power full heating operation 45
- Outline in a heating operation there will be anxiety that a head pressure excessively increases and exceeds the permissible limit in an over load conditions for avoiding this fact when the head pressure increases frequency step down control is carried out for the protection so that the head pressure will not exceed the permissible limit after detecting the temperature of the indoor unit s heat exchanger saturation temperature equivalent to head pressure 45
- Peak cut control function 45
- Processing 45
- The restriction for frequency is not conducted in the return area by means of peak cut control 45
- Four way valve function compensation 46
- Compressor protection function 47
- Wet operation protection 48
- Dew condensation sweating prevention function 49
- Ftk25 35j ftx25 35j 2 50
- Instruction 2 50
- Part 5 system configuration 50
- Caution 51
- Ftk25 35j ftx25 35j 51
- Instruction 51
- Safety precautions 51
- Warning 51
- Caution 52
- Installation 52
- Warning 52
- Air inlet 53
- Air outlet louvre vertical blades 53
- Air purifying filter front grille 53
- Caution 53
- Flap horizontal blade 53
- Grille tab 53
- Indoor unit 53
- Intelligent eye lamp green operation lamp green 53
- Names of parts 53
- On off button 53
- Receiver explanation 53
- Timer lamp orange 53
- Names of parts 54
- Open the cover 54
- Outdoor unit 54
- Remote controller 54
- Sensor 54
- Attention 55
- Instruction si04 115 55
- Position and correctly 55
- Preparation before operation 55
- Receiver 55
- Remote controller 55
- Remote controller holder set 55
- System configuration 55
- Indoor unit 56
- N setting the air purifying filters 56
- N setting the clock 56
- N turn the breaker on 56
- Preparation before operation 56
- Auto dry cool heat fan operation 57
- Instruction si04 115 57
- On off 57
- System configuration 57
- Then operation lamp goes off 57
- Iiiii to cancel powerful operation 58
- Powerful operation 58
- Adjusting the air flow direction 59
- Adjusting the horizontal blade flap 59
- Adjusting the louvre 59
- Attention 59
- Notes on flap angles 59
- Press while the air conditioner is operating 59
- You can adjust the air flow direction to increase your comfort 59
- Attention 60
- Example 60
- Iiiii to cancel the timer 60
- Off timer operation 60
- On off 60
- On timer operation 60
- Si04 115 instruction 60
- System configuration 51 60
- Then the timer lamp goes off 60
- Then the timer lamp lights up 60
- Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning you can also use off timer and on timer in combination 60
- Timer operation 60
- Good sleep cooling operation g sleep 61
- N to cancel the good sleep cooling operation press 61
- N to change the air flow direction setting 61
- N to change the air flow rate setting 61
- N to change the temperature setting 61
- Notes on good sleep cooling operation 61
- What is 1 f fluctuation 61
- Caution 62
- Energy saving 62
- Intelligent eye 62
- Intelligent eye is useful for 62
- Notes on intelligent eye 62
- Air filter air purifying filter frame 63
- Care and cleaning 63
- Cleaning the air filters 63
- Cleaning the indoor and outdoor units and the remote controller 63
- Hold the recessed parts of the frame and unhook the four claws 63
- Replacing air purifying filters 63
- Care and cleaning 64
- Cleaning the front grille 64
- Explanation 65
- L these cases are not troubles 65
- The following cases are not air conditioner troubles but have some reasons you may just continue using it 65
- Trouble shooting 65
- L check again 66
- Please check again before calling a repair person 66
- Trouble shooting 66
- Trouble shooting 67
- Fault diagnosis by remote controller 68
- G gg gg fault diagnosis 68
- Si04 115 instruction 68
- System configuration 59 68
- Trouble shooting 68
- Caution for diagnosis 2 70
- Check 5 70
- Code indication on the remote controller 5 70
- Part 6 part 6 part 6 part 6 service diagnosis service diagnosis service diagnosis service diagnosis 70
- Part 6 service diagnosis 70
- Problem symptoms and measures 3 3 service check function 4 70
- Trouble shooting 6 70
- Caution for diagnosis 71
- Indicator lamps 71
- On off 71
- Troubleshooting with the operation lamp 71
- Problem symptoms and measures 72
- Arc423 series 73
- In the arc423a series the temperature display sections on the main unit indicate corresponding codes 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 73
- 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 73
- Press the timer cancel button repeatedly until a continuous beep is produced 73
- Service check function 73
- The code indication changes in the sequence shown below and notifies with along beep 73
- Code indication on the remote controller 74
- Error codes and description of fault 74
- A1a1a1a1 75
- Faulty pcb 75
- Trouble shooting 75
- A5 a5 a5 a5 76
- Operation shutdown due to high pressure control or freeze up protection thermistor activation 76
- A6 a6 a6 a6 77
- Check no 6 refer to p 2 77
- Detection error due to faulty indoor unit pcb 1 77
- Indoor unit led display 77
- Malfunction decision conditions 77
- Method of malfunction detection 77
- Operation halt due to breaking of the fan motor lead wires 77
- Operation halt due to breaking of wire inside the fan motor 77
- Operation halt due to fan motor ac motor or related abnormality 77
- Operation halt due to faulty capacitor of the fan motor 77
- Operation halt due to short circuit inside the fan motor winding 77
- Remote controller display 77
- Service diagnosis 77
- Supposed causes 77
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 77
- Trouble shooting si04 115 77
- Troubleshooting 77
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 77
- C4 c4 c4 c4 c9 c9 c9 c9 ca ca ca ca 78
- Operation halt due to detection of thermistor or related abnormality 78
- Faulty indoor unit pcb 79
- Faulty indoor unit pcb 80
- Power supply abnormalities or faulty indoor printed circuit boards 81
- U4 u4 u4 u4 81
- Check no 3 refer to p 1 82
- Faulty indoor unit pcb 82
- Faulty outdoor unit pcb 82
- Indoor unit led display 82
- Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 82
- Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform 82
- Indoor unit outdoor unit signal transmission error due to wiring error 82
- Malfunction decision conditions 82
- Method of malfunction detection 82
- Remote controller display 82
- Service diagnosis 73 82
- Si04 115 trouble shooting 82
- Signal transmission error between indoor and outdoor units 82
- Supposed causes 82
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 82
- Troubleshooting 82
- U4 u4 u4 u4 82
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 82
- Breaking of wire or faulty connection of internal wiring 83
- Check no 1 refer to p 0 83
- Check no refer to p 5 83
- Ct errors are detected using the compressor s operating frequency and the input current detected by the ct 83
- Faulty outdoor pcb 1 83
- Faulty power transistor 83
- H8 h8 h8 h8 83
- Inlet current 0 5 a 83
- Malfunction decision conditions 83
- Method of malfunction detection 83
- Operation halt due to detection of ct error 83
- Outdoor unit led display a 83
- Remote controller display 83
- Supposed causes 83
- The malfunction counter will be reset unless the emergency stop will take place within sixty minutes of the compressor operation time as integrated time after the return from the malfunction including the other emergency stops 83
- Troubleshooting 83
- When a ct error is generated 4 times the system shuts down 83
- When the compressor s operating frequency is more than 62 hz and the ct input is less than 0 v 83
- J3 j3 j3 j3 j6 j6 j6 j6 h9 h9 h9 h9 84
- Operation halt due to thermistor error or disconnection detection 84
- Check no 5 refer to p 1 85
- Check no refer to p 5 85
- Check no refer to p 7 85
- Compressor startup errors are detected using input current detected by ct and compressor s operation frequency 85
- Detection error due to faulty outdoor unit pcb 85
- E6 e6 e6 e6 85
- Malfunction decision conditions 85
- Method of malfunction detection 85
- Operation halt due to compressor startup error 85
- Outdoor unit led display a 85
- Remote controller display 85
- Setting value 145 256 output frequency 6 a 85
- Startup error due to closed stop valve 85
- Startup error due to faulty compressor 85
- Startup error due to faulty outdoor unit pcb 85
- Supposed causes 85
- Troubleshooting 85
- When a compressor startup error is generated 16 times consecutively the system shuts down the 16 time counter resets itself when ol insufficient gas or compressor startup error does not occur within 60 minutes of compressor operation time cumulative time after the error generation 85
- When the inlet current is over the setting value 85
- L5 l5 l5 l5 86
- Output overcurrent 86
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 87
- Check no 2 refer to p 0 87
- Check no refer to p 5 87
- Check no refer to p 7 87
- Check no refer to p 9 87
- Erroneous internal wiring can result in output overcurrent in some cases if system stops due to output overcurrent after parts replacement that requires disconnection of wires check wiring carefully 87
- Service diagnosis 87
- Trouble shooting si04 115 87
- Troubleshooting 87
- Faulty outdoor unit pcb 88
- Check no 3 refer to p 1 89
- Display disabled by faulty power supply 89
- Faulty outdoor unit pcb 89
- Faulty outdoor unit pcb and transmitting receiving circuit 89
- Malfunction decision conditions 89
- Method of malfunction detection 89
- Microcomputer program run away due to an external factor 89
- Momentary power failure etc 89
- Momentary voltage drop 89
- Outdoor unit led display a 89
- Remote controller display 89
- Supposed causes 89
- The proper program operation of the microcomputer is checked by the program 2 signals transmitted from the outdoor unit to the indoor unit are received by the outdoor unit itself in indoor unit outdoor unit signal transmission mode and proper receiving of the signals by the indoor unit is checked 89
- Troubleshooting 89
- When the microcomputer program does not function properly 2 when the signals transmitted from the outdoor unit to the indoor unit are received by the outdoor unit itself in indoor unit outdoor unit signal transmission mode but not properly 3 when the zero cross signal is not detected over 10 seconds 89
- E8 e8 e8 e8 90
- Operation halt due to detection of input over current 90
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 91
- Check no 2 refer to p 0 91
- Check no refer to p 5 91
- Check no refer to p 7 91
- Check no refer to p 9 91
- Internal wiring errors can cause an input over current if the equipment stops due to an input over current after the wires are disconnected and connected again for parts replacement etc check for wiring errors 91
- Service diagnosis 91
- Trouble shooting si04 115 91
- Troubleshooting 91
- Interrupt due to ol action 92
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 93
- Check no 7 refer to p 2 93
- Service diagnosis 93
- Trouble shooting si04 115 93
- Troubleshooting 93
- Before measuring operate the unit for several minutes then shut down the operation by force using the circuit breaker 94
- Capacitor voltage check 94
- Check no 1 power transistor check 94
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector then follow the procedure below to measure resistance between power transistor and and the u v and w terminals of the compressor connector with a multi tester evaluate the measurement results for a pass fail judgment 94
- How to check 94
- If the unit is shut down using the remote controller instead of the circuit breaker the capacitor discharges the electric load thus disallowing accurate measurement 94
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 94
- Note the charge section is applied with high voltage therefore exercise caution during measurement to prevent electric shock 94
- Power transistor check capacitor voltage check 94
- Power transistor output check 96
- Check no remove the connectors of the thermistors on the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the graph and the table below 97
- Thermistor resistance check 97
- Check no 98
- Electric resistance cannot be precisely measured when a wire harness is connected directly to a printed circuit board instead of using a connector when error display reappears replace the pcb 98
- For the models whose thermistor is directly equipped on the printed circuit board 98
- Installation condition check 98
- Remove the signal receiver and the display printed circuit board disconnect the connector too and then measure ohm by an ohmmeter at the both ends 98
- Service diagnosis 89 98
- Si04 115 check 98
- The relation between temperature and resistance is in common with the existing models 98
- Check no 1 99
- Check no 2 99
- Discharge pressure check 99
- Rectifier check 99
- There are several different terminal position patterns therefore be sure to check the terminal marks 99
- Check no 3 measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance 100
- Check no 5 100
- Check to see if the power supply waveform is a sine wave fig 100
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 100
- Fig fig 100
- Inverter units compressor refrigerant system check 100
- Power supply waveforms check 100
- Service diagnosis 91 100
- Si04 115 check 100
- Check no 6 1 check the connector connection 2 with the power on operation off and the connector connected check the following 101
- Check no 7 101
- Check si04 115 101
- Failure of 1 101
- Faulty hall ic 101
- Faulty pcb 101
- Generation of 3 pulses between pins 2 and 3 when the fan motor is operating 101
- Hall ic check 101
- Output voltage of about 5 v between pins 1 and 3 101
- Refrigerant system check 101
- Replace the fan motor both 1 and 2 result 101
- Replace the pcb 101
- Replace the pcb failure of 2 101
- Service diagnosis 101
- For ftk25j ftk35j ftx25j ftx35j 4 102
- For rk25j rk35j rx25j rx35j 16 102
- Part 7 part 7 part 7 part 7 removal procedure removal procedure removal procedure removal procedure 102
- Part 7 removal procedure 102
- For ftk25j ftk35j ftx25j ftx35j 103
- Removal of air filter 103
- When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel 105
- Removal of front grille 106
- The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part 108
- When restoring the grille make sure whether each hook is set as it was 108
- Removal of horizontal blade and vertical blade 109
- Removal of switch box pc board and swing motor 111
- Remove a screw on the switch box 112
- Remove a screw on the terminal strip 112
- The switch box can be removed instead of disengaging the terminal strip 112
- A hook is provided on the behind 113
- Pull up the switch box forward to remove 113
- Disengage the four knobs on the back of the display printed circuit board 115
- Display printed circuit board 115
- Removal of heat exchanger 117
- Install of drain plug 120
- Procedure warning be sure to wait 10 minutes or more after turning off all power supplies before disassembling work 121
- Removal of fan rotor and motor 121
- Remove heat exchanger 121
- To remove right side panel remove three screws 121
- Disengage hook 122
- Loosen the hexagon head set screw on the fan rotor 122
- Remove a screw on the left side panel 123
- Remove the motor and fan rotor 123
- Disengage a hook from the backward 124
- Since the fan bearing is made of rubber push it strongly off from the inside the bearing can be removed just as the left side plate is attached with 124
- For rk25j rk35j rx25j rx35j 125
- Removal of external casing 125
- Sectional view at the front 127
- The front plate and the left side plate can be removed when the one fixed screw is removed 127
- Removal of bell mouth and left side plate 128
- Removal of pc board and switch box 129
- Disconnect the two connectors of the reactor 130
- Disconnect the wire harness 130
- Remove the four screws fixing the printed circuit board 130
- Disconnect the three wires from the printed circuit board 131
- The printed circuit board has eight hooks 131
- Undo the eight hooks and the printed circuit board can be disengaged 131
- Remove the switch box 132
- Remove the two screws fixing the switch box 132
- The printed circuit board can completely be released 132
- Lift and remove the switch box 133
- Remove the molded interconnect device mid 133
- Remove the one screw fixing the mid 133
- Slide the mid upward and release 134
- Removal of propeller fan and fan motor 135
- Remove the fan motor 136
- Removal of compressor noise absorption pad 137
- Disengage the lead wires from the wire clip 139
- Procedure warning be sure to turn off all power supplies at least 10 min before disassembling work 139
- Pull the partition plate upward to remove 139
- Removal of partition plate and reactor 139
- Remove the two screws fixing the partition plate 139
- The reactor can be removed by removing the fixed screw 140
- To remove the reactor 140
- When restoring the partition plate put the hook into the bottom frame 140
- Removal of four way valve 141
- Removal of compressor 143
- Explanation 38 146
- Others 38 146
- Part 8 others 146
- Explanation 147
- Others 147
- Test run from the remote controller for heat pump model only 147
- Centralized control for krc72 7 krp413a1s 148
- Cut the jumper j4 148
- Cut the jumper ja on pcb 148
- Dry keep change over switch all indoor models for cooling only and heat pump model 148
- For an explanation on usage see the option handbook however do the following when using the krp413a1s contact connection centralized control pc board 148
- How to set the different addresses 148
- If the unit was running when a power failure occurred it may not resume operation after recovering from a power failure 148
- Method of operating air conditioners individually when two units are installed in one room for cooling only and heat pump model 148
- Note the power failure recovery function is controlled by the on signal from the centralized control pc board the following may occur if the unit is used without cutting jumper jc 148
- Pcb in the indoor unit 148
- Remove the front panel 148
- Remove the sensor parts cover 2 screws then remove the electric parts box 1 screw 148
- Slide the metallic cover to remove it 4 claws on the electric parts box 148
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 148
- Wireless remote controller 148
- Adjusting the angle of the intelligent eye sensor 149
- Part 9 appendix 150
- Cooling only and heat pump 151
- Indoor unit 151
- Piping diagram 151
- Cooling only 152
- Outdoor unit 152
- Rk25jve9 rk25jvea9 rk25jvet9 rk25jv1nb9 152
- Rk35jve9 rk35jvea9 rk35jvet9 rk35jv1nb9 152
- Appendix 153
- Heat pump 153
- Piping diagram si04 115 153
- Rx25jvea9 rx25jvet9 rx25jv1nb9 153
- Rx35jvea9 rx35jvet9 rx35jv1nb9 153
- Cooling only 154
- Ftk25jve9 ftk25jvea9 ftk25jvet9 ftk25jv1nb9 ftk35jve9 ftk35jvea9 ftk35jvet9 ftk35jv1nb9 154
- Indoor unit 154
- Wiring diagram 154
- Appendix 155
- Ftx25jvea9 ftx25jvet9 ftx25jv1nb9 ftx35jvea9 ftx35jvet9 ftx35jv1nb9 155
- Heat pump 155
- Wiring diagram si04 115 155
- Appendix 147 156
- Cooling only 156
- Outdoor unit 156
- Rk25jv1nb9 rk35jv1nb9 156
- Rk25jve9 rk25jvea9 rk25jvet9 rk35jve9 rk35jvea9 rk35jvet9 156
- Si04 115 wiring diagram 156
- Appendix 157
- Heat pump 157
- Rx25jv1nb9 rx35jv1nb9 157
- Rx25jvea9 rx25jvet9 rx35jvea9 rx35jvet9 157
- Wiring diagram si04 115 157
- Index index index index 158
- Drawings flow charts 160
- Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 160
- For further improvement specifications or designs are subject to change without prior notice 162
- Printed in japan 02 2002 ak 162
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