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Daikin RXS25C2VMB [157/246] Indoor unit
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Indoor Unit SiENBE04-401A
148 Removal Procedure
1. Indoor Unit
1.1 Removal of Air Filter
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1. External features
If ON/OFF button is kept
pushing for 5 seconds, a
forced cooling operation will
be carried out for approx. 15
minutes.
2. Removing air filters
1
Pull protrusions on left
and right sides of panel
with fingers and open
front grille all the way.
2
Lift center section of air
filter and disengage
hooks.
Remove air filter by
pulling forward.
Left and right filters are
interchangeable.
To re-install, insert air filter
along the guide.
ON/OFF button
Operation
lamp (Green)
Intelligent Eye
Receiver
Home leave
lamp (Red)
Timer lamp
(Yellow)
Содержание
- Inverter pair 1
- Manual 1
- Service 1
- Sienbe04 401a 1
- Wall mounted type c series d series 1
- C series 2
- D series 2
- Inverter pair 2
- Inverter pair c series d series 2
- Control specification 8 3
- Function of main structural parts 6 3
- Introduction v 3
- List of functions 3
- Main functions 4 3
- Part 1 list of functions 3
- Part 2 specifications 1 3
- Part 3 printed circuit board connector wiring diagram 7 3
- Part 4 function and control 3 3
- Printed circuit board connector wiring diagram 8 3
- Specifications 2 3
- Caution for diagnosis 04 2 problem symptoms and measures 05 3 service check function 06 4 troubleshooting 09 4
- Check 38 4
- Part 5 system configuration 3 4
- Part 6 service diagnosis 03 4
- System configuration 4 2 instruction 5 4
- Drawings flow charts v 5
- Index i 5
- Indoor unit 48 5
- Others 18 5
- Outdoor unit rk x h c ark x h c r y n c 90 5
- Outdoor unit rk x s c ark x s c 70 5
- Part 7 removal procedure 47 5
- Part 8 others 17 5
- Part 9 appendix 21 5
- Piping diagrams 22 5
- Wiring diagrams 27 5
- Caution in repair 6
- Introduction 6
- Safety cautions 6
- Warning 6
- 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
- Warning 9
- List of functions 10
- Part 1 list of functions 10
- High grade models 11
- List of functions 11
- List of functions sienbe04 401a 11
- Note holding functions no functions 11
- List of functions 3 12
- Note holding functions no functions 12
- Sienbe04 401a list of functions 12
- List of functions 13
- List of functions sienbe04 401a 13
- Note holding functions no functions 13
- List of functions 5 14
- Note holding functions no functions 14
- Sienbe04 401a list of functions 14
- Standard grade models 14
- List of functions 15
- List of functions sienbe04 401a 15
- Note holding functions no functions 15
- List of functions 7 16
- Note holding functions no functions 16
- Sienbe04 401a list of functions 16
- List of functions 17
- List of functions sienbe04 401a 17
- Note holding functions no functions 17
- List of functions 9 18
- Non lnverter models 18
- Note holding functions no functions 18
- Sienbe04 401a list of functions 18
- Part 2 specifications 20
- Specifications 2 20
- Cooling only 21
- High grade models 21
- Specifications 21
- Specifications sienbe04 401a 21
- Hz 230v 22
- Sienbe04 401a specifications 22
- Specifications 13 22
- Hz 230v 23
- Specifications 23
- Specifications sienbe04 401a 23
- Hz 230v 24
- Sienbe04 401a specifications 24
- Specifications 15 24
- Standard grade models 24
- Hz 230v 25
- Specifications 25
- Specifications sienbe04 401a 25
- Hz 230v 26
- Sienbe04 401a specifications 26
- Specifications 17 26
- Hz 230v 27
- Specifications 27
- Specifications sienbe04 401a 27
- Hz 230v 28
- Non lnverter models 28
- Sienbe04 401a specifications 28
- Specifications 19 28
- Heat pump 29
- High grade models 29
- Specifications 29
- Specifications sienbe04 401a 29
- Hz 230v 30
- Sienbe04 401a specifications 30
- Specifications 21 30
- Hz 230v 31
- Specifications 31
- Specifications sienbe04 401a 31
- Hz 230v 32
- Sienbe04 401a specifications 32
- Specifications 23 32
- Hz 230v 33
- Specifications 33
- Specifications sienbe04 401a 33
- Hz 230v 34
- Sienbe04 401a specifications 34
- Specifications 25 34
- Hz 230v 35
- Specifications 35
- Specifications sienbe04 401a 35
- Standard grade models 35
- Hz 230v 36
- Sienbe04 401a specifications 36
- Specifications 27 36
- Hz 230v 37
- Specifications 37
- Specifications sienbe04 401a 37
- Hz 230v 38
- Sienbe04 401a specifications 38
- Specifications 29 38
- Hz 230v 39
- Specifications 39
- Specifications sienbe04 401a 39
- Hz 230v 40
- Sienbe04 401a specifications 40
- Specifications 31 40
- Hz 230v 41
- Specifications 41
- Specifications sienbe04 401a 41
- Hz 230v 42
- Sienbe04 401a specifications 42
- Specifications 33 42
- Hz 230v 43
- Non lnverter models 43
- Specifications 43
- Specifications sienbe04 401a 43
- Hz 230v 44
- Sienbe04 401a specifications 44
- Specifications 35 44
- Part 3 printed circuit board connector wiring diagram 46
- Printed circuit board connector wiring diagram 8 46
- Connectors 47
- Indoor unit 47
- Printed circuit board connector wiring diagram 47
- Pcb 1 control pcb pcb 2 signal receiver pcb 48
- Pcb 3 intelligent eye sensor pcb inverter models only 48
- Pcb detail 48
- Printed circuit board connector wiring diagram 39 48
- Sienbe04 401a printed circuit board connector wiring diagram 48
- Connectors 49
- Outdoor unit rk x s c ark x s c 49
- Pcb 1 control pcb outdoor unit 50
- Pcb 2 filter pcb 50
- Pcb detail 50
- Printed circuit board connector wiring diagram 41 50
- Sienbe04 401a printed circuit board connector wiring diagram 50
- Connectors 51
- Outdoor unit rk x h c ark x h c r y n c 51
- Pcb detail 51
- Control specification 8 52
- Function of main structural parts 6 52
- Main functions 4 52
- Part 4 function and control 52
- Additional control parameters 53
- Drawing of inverter 53
- Frequency principle 53
- Inverter principle 53
- Main control parameters 53
- Main functions 53
- Note see the list of functions for the functions applicable to different models 53
- The compressor is frequency controlled during normal operation the target frequency is set by the following 2 parameters coming from the operating indoor unit the load condition of the operating indoor unit the difference between the room temperature and the set temperature 53
- The following drawing shows a schematic view of the inverter principle 53
- The target frequency is adapted by additional parameters in the following cases frequency restrictions initial settings forced cooling operation 53
- 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 53
- Forced cooling operation 54
- Frequency limits 54
- Inverter features 54
- Auto swing 55
- Power airflow dual flaps 55
- Power airflow dual flaps wide angle louvers and auto swing 55
- Wide angle louvers 55
- 35kw class 500 860 rpm during powerful operation 850 910 rpm 56
- Automatic air flow control for cooling 56
- Automatic air flow control for heating 56
- Control mode 56
- Fan speed control for indoor units 56
- For more information about hall ic refer to trouble shooting for fan motor on page 113 56
- Function and control 47 56
- Ll cooling thermostat off sl silent l ml m mh h hh powerful 56
- Note 1 during powerful operation fan operate h tap 50 90 rpm 2 fan stops during defrost operation 56
- Phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 56
- Phase steps 56
- Sienbe04 401a main functions 56
- Step cooling heating dry mode lll heating thermostat off 56
- 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 56
- The following drawing explains the principle for fan speed control for heating 56
- The following drawing explains the principle of fan speed control for cooling 56
- Within this range the airflow rate is automatically controlled when the fan setting button is set to automatic 56
- In case of inverter units 57
- Programme dry function 57
- Programme dry function removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and air flow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode 57
- The microcomputer automatically sets the temperature and fan settings the difference between the room temperature at startup and the temperature set by the microcomputer is divided into two zones then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level 57
- Automatic operation 58
- Detailed explanation of the function 58
- Cooling operation 59
- Function and control 59
- Heating operation 59
- Main functions sienbe04 401a 59
- Night set mode 59
- The night set circuit 59
- The night set circuit continues heating or cooling the room at the set temperature for the first one hour then automatically raises the temperature setting slightly in the case of cooling or lowers it slightly in the case of heating for economical operations this prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity 59
- When the off timer is set the night set circuit automatically activates the night set circuit maintains the airflow setting made by users 59
- Detection method by intelligent eye 60
- Function and control 51 60
- Intelligent eye 60
- Processing 60
- Sienbe04 401a main functions 60
- The motions for example in cooling 60
- This is the function that detects existence of humans in the room by a human motion sensor intelligent eye and reduces the capacity when there is no human in the room in order to save electricity 60
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output a microcomputer 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 60
- When a microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature sifted 2 c from the set temperature cool 2 c higher dry 1 c higher auto according to the operation mode at that time h 1 in case of fan mode the fan speed reduces by 50 rpm 60
- Others 61
- Detail of the control 62
- Home leave operation 62
- Others 62
- Outline 62
- Details of the control 63
- Ex powerful operation in cooling mode 63
- In order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency 63
- Inverter powerful operation 63
- Outline 63
- When powerful button is pushed in each operation mode the fan speed setting temperature will be converted to the following states in a period of twenty minutes 63
- Air purifying filter with photocatalytic deodorizing function 64
- Auto restart function 64
- Hot start function 64
- Mold proof air filter 64
- On off button on indoor unit 64
- Other functions 64
- Self diagnosis digital display 64
- Signal receiving sign 64
- A outdoor heat exchanger thermistor dcb 65
- B discharge pipe thermistor dot 65
- C indoor heat exchanger thermistor dcn 65
- Function of main structural parts 65
- Function of thermistor 65
- Heat pump model 65
- A outdoor heat exchanger thermistor dcb 66
- B discharge pipe thermistor dot 66
- C indoor heat exchanger thermistor dcn 66
- Cooling only model 66
- Control specification 67
- Detail 67
- For cooling only model there are following models stop and cooling including drying 67
- For heat pump model there are following modes stop cooling includes drying heating include defrosting 67
- Mode hierarchy 67
- Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation 67
- Outline 67
- There are two modes the mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service 67
- Detail 68
- Frequency control 68
- Outline 68
- Controls at mode changing start up 70
- Detail 70
- Four way valve operation compensation 70
- Four way valve switching 70
- Outline 70
- Outline of heating operation 70
- Preheating operation 70
- 3 minutes standby 71
- Compressor protection function 71
- Detail 71
- Discharge pipe control 71
- Divide the zone 71
- Management within the zones 71
- Outline 71
- Prohibit to turn on the compressor for 3 minutes after turning it off except when defrosting only for heat pump model 71
- The discharge pipe temperature is used as the compressor s internal temperature if the discharge pipe temperature rises above a certain level the operating frequency upper limit is set to keep this temperature from going up further 71
- When turning the compressor from off to on the upper limit of frequency must be set as follows the function must not be used when defrosting only for heat pump model 71
- Detail 72
- Freeze up protection control 72
- Input current control 72
- Outline 72
- Detail 73
- Fan control 73
- Heating peak cut control 73
- Liquid compression protection function 2 73
- Outline 73
- A rk x h r y n models 74
- A rk x s models 74
- Conditions for starting defrost the starting conditions must be made with the outdoor air temperature and heat exchanger temperature under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or ending the defrosting conditions for canceling defrost the judgment must be made with heat exchanger temperature 4 c 22 c 74
- Defrost control 74
- Detail 74
- Function and control 65 74
- Heat pump only defrosting is carried out by the cooling cycle reverse cycle the defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing 74
- Outline 74
- Sienbe04 401a control specification 74
- Control specification sienbe04 401a 75
- Detail 75
- Electronic expansion valve control 75
- Function and control 75
- Outline 75
- The following items are included in the electronic expansion valve control electronic expansion valve is fully closed 1 electronic expansion valve is fully closed when turning on the power 2 pressure equalizing control open control 1 electronic expansion valve control when starting operation 2 control when frequency changed 3 control for defrosting only for heat pump model 4 control when a discharge pipe temperature is abnormally high 5 control when the discharge pipe thermistor is disconnected feedback control 1 discharge pipe temperature control 75
- The followings are the examples of control which function in each mode by the electronic expansion valve control 75
- Detail 76
- Disconnection of the discharge pipe thermistor 76
- Fully closing with power on 76
- High temperature of the discharge pipe 76
- Opening limit 76
- Outline 76
- Pressure equalization control 76
- Starting operation control 76
- Control when frequency is changed 77
- Target discharge pipe temperature control 77
- Detail 78
- Detection of overload and over current 78
- Insufficient gas control 78
- Malfunctions 78
- Outline 78
- Sensor malfunction detection 78
- Additional function 79
- Compressor operating frequency is increased to p1 max max hz of operating room and outdoor unit airflow rate is increased 79
- Detail 79
- Forced cooling 79
- Forced operating mode includes only forced cooling 79
- Forced operation mode 79
- I judgment by power consumption when an output frequency is exceeds 55 hz and the input current is less than specified value the adjustment is made for insufficient gas ii judgment by discharge pipe temperature when discharge pipe temperature is 20 c higher than target value and the electronic expansion value opening is 450 pulses max the adjustment is made for insufficient gas iii judgment by the difference of temperature when the difference of the temperature is smaller than it is regarded as insufficient gas 79
- Outline 79
- Power supply voltage is detected each time equipment operation starts 79
- Powerful operation mode 79
- Voltage detection function 79
- Detail 80
- Facility setting jumper cooling at low outdoor temperature 80
- Outline 80
- Part 5 system configuration 82
- System configuration 4 2 instruction 5 82
- System configuration 83
- Caution 84
- Instruction 84
- Safety precautions 84
- Warning 84
- Consider nuisance to your neighbours from noises 85
- Electrical work 85
- Installation site 85
- System relocation 85
- Names of parts 86
- On off 86
- Outdoor unit 87
- Arc433a1 a2 88
- Remote control 88
- Preparation before operation 89
- Attention 90
- Receiver 90
- To fix the remote control holder on the wall 90
- To operate the remote control 90
- On off 91
- To set the clock 91
- Turn the breaker on 91
- Auto dry cool heat fan operation 92
- To change the temperature setting 92
- To start operation 92
- To stop operation 92
- To change the air flow rate setting 93
- Adjusting the air flow direction 94
- To adjust the horizontal blades flaps 94
- Notes on flaps and louvres angles 95
- To adjust the vertical blades louvres 95
- Powerful operation 96
- To cancel powerful operation 96
- To start powerful operation 96
- Outdoor unit silent operation 97
- To cancel outdoor unit silent operation 97
- To start outdoor unit silent operation 97
- Before using home leave operation 98
- Home leav 98
- Home leave operation 98
- Operation 98
- Sienbe04 401a instruction 98
- System configuration 89 98
- To cancel home leave operation 98
- To start home leave operation 98
- Useful in these cases 99
- What s the home leave operation 99
- Intelligent eye operation 100
- Press sensor button 100
- Press sensor button again 100
- To cancel the intelligent eye operation 100
- To start intelligent eye operation 100
- Caution 101
- Intelligent eye is useful for energy saving 101
- Notes on intelligent eye 101
- To adjust the angle of the intelligent eye sensor 101
- Operation 102
- Timer operation 102
- To cancel the off timer operation 102
- To use off timer operation 102
- Attention 103
- On off 103
- To cancel the on timer operation 103
- To combine on timer and off timer 103
- To use on timer operation 103
- Before cleaning be sure to stop the operation and turn the breaker off 104
- Care and cleaning 104
- Caution 104
- Front grille 104
- Indoor unit outdoor unit and remote control 104
- Air filter 105
- Air purifying filter with photocatalytic deodorizing function gray 105
- Filters 105
- Maintenance 1 remove dust with a vacuum cleaner and wash lightly with water 2 if it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent 3 do not remove filter from frame when washing with water 4 after washing shake off remaining water and dry in the shade 5 since the material is made out of paper do not wring out the filter when removing water from it replacement 1 remove the tabs on the filter frame and replace with a new filter 105
- Before a long idle period 106
- Instruction sienbe04 401a 107
- System configuration 107
- The following cases are not air conditioner troubles but have some reasons you may just continue using it 107
- These cases are not troubles 107
- Troubleshooting 107
- Check again 108
- Please check again before calling a repair person 108
- Sienbe04 401a instruction 108
- System configuration 99 108
- Call the service shop immediately 109
- Disposal requirements 109
- Warning 109
- We recommend periodical maintenance 109
- 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 cancel itself if the button is not pressed for 1 minute 110
- Fault diagnosis by remote control 110
- In the arc433a series the temperature display sections on the main unit indicate corresponding codes 110
- Press the timer cancel button repeatedly until a continuous beep is produced 110
- The code indication changes as shown below and notifies with a long beep 110
- When the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 110
- Caution for diagnosis 04 2 problem symptoms and measures 05 3 service check function 06 4 troubleshooting 09 112
- Check 38 112
- Part 6 service diagnosis 112
- Caution for diagnosis 113
- Indicator lamps 113
- Note rk x s ark x s series 10 c 114
- Problem symptoms and measures 114
- Check method 1 115
- Service check function 115
- Timer cancel button 115
- Check method 2 116
- Displayed only when system down occurs 118
- Error codes and description 118
- Troubleshooting 118
- Indoor unit pcb abnormality 119
- Freeze up protection control or high pressure control 120
- Malfunction decision conditions 120
- Method of malfunction detection 120
- Remote control display 120
- Supposed causes 120
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 121
- Check no refer to p 40 121
- Service diagnosis 121
- Troubleshooting 121
- Troubleshooting sienbe04 401a 121
- Check no 6 refer to p 45 122
- Fan motor ac motor or related abnormality 122
- Malfunction decision conditions 122
- Method of malfunction detection 122
- Operation halt due to short circuit inside the fan motor winding operation halt due to breaking of wire inside the fan motor operation halt due to breaking of the fan motor lead wires operation halt due to faulty capacitor of the fan motor detection error due to faulty indoor unit pcb 122
- Remote control display 122
- Service diagnosis 113 122
- Sienbe04 401a troubleshooting 122
- Supposed causes 122
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 122
- Troubleshooting 122
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 122
- Malfunction decision conditions 123
- Method of malfunction detection 123
- Remote control display 123
- Supposed causes 123
- Thermistor or related abnormality indoor unit 123
- Troubleshooting 123
- Check no 0 refer to p 43 124
- Faulty outdoor unit pcb faulty indoor unit pcb indoor unit outdoor unit signal transmission error due to wiring error indoor unit outdoor unit signal transmission error due to disturbed power supply waveform indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 124
- Malfunction decision conditions 124
- Method of malfunction detection 124
- Remote control display 124
- Service diagnosis 115 124
- Sienbe04 401a troubleshooting 124
- Signal transmission error between indoor and outdoor unit 124
- Supposed causes 124
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 124
- Troubleshooting 124
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 124
- A compressor overload is detected through compressor ol 125
- Check no 1 refer to p 43 125
- Check no refer to p 38 125
- Check no refer to p 39 125
- Check no refer to p 40 125
- If the compressor ol is activated twice the system will be shut down the error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time the operating temperature condition is not specified 125
- Malfunction decision conditions 125
- Method of malfunction detection 125
- Ol activation compressor overload 125
- Refrigerant shortage four way valve malfunctioning outdoor unit pcb defective water mixed in the local piping electronic expansion valve defective stop valve defective 125
- Remote control display 125
- Service diagnosis 125
- Supposed causes 125
- Troubleshooting 125
- Troubleshooting sienbe04 401a 125
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 126
- Compressor lock 126
- Compressor locked compressor harness disconnected 126
- Malfunction decision conditions 126
- Method of malfunction detection 126
- Note if the model doesn t have spm replace the outdoor unit pcb 126
- Remote control display 126
- Service diagnosis 117 126
- Sienbe04 401a troubleshooting 126
- Supposed causes 126
- The system judges the compressor lock and stops due to over current the system judges the compressor lock and cannot operation with position detection within 15 seconds after start up the system will be shut down if the error occurs 16 times clearing condition continuous run for about 10 minutes normal 126
- Troubleshooting 126
- A fan motor or related error is detected by checking the high voltage fan motor rpm being detected by the hall ic 127
- Check no 5 refer to p 44 127
- Dc fan lock 127
- Fan motor breakdown harness or connector disconnected between fan motor and pcb or in poor contact foreign matters stuck in the fan 127
- Malfunction decision conditions 127
- Method of malfunction detection 127
- Remote control display 127
- Service diagnosis 127
- Supposed causes 127
- The fan does not start in 30 seconds even when the fan motor is running the system will be shut down if the error occurs 16 times clearing condition continuous run for about 5 minutes normal 127
- Troubleshooting 127
- Troubleshooting sienbe04 401a 127
- An input over current is detected by checking the input current value with the compressor running 128
- Check no refer to p 41 128
- Heating above 12a 128
- Input over current detection 128
- Malfunction decision conditions 128
- Method of malfunction detection 128
- Note if the model doesn t have spm replace the outdoor unit pcb 128
- Over current due to compressor failure over current due to defective power transistor over current due to defective outdoor unit pcb error detection due to outdoor unit pcb over current due to short circuit 128
- Remote control display 128
- Service diagnosis 119 128
- Sienbe04 401a troubleshooting 128
- Supposed causes 128
- The following current with the compressor running continues for 2 seconds coolin 128
- Troubleshooting 128
- Four way valve abnormality 129
- Malfunction decision conditions 129
- Method of malfunction detection 129
- Remote control display 129
- Supposed causes 129
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 130
- Check no 1 refer to p 43 130
- Check no refer to p 39 130
- Check no refer to p 40 130
- Service diagnosis 121 130
- Sienbe04 401a troubleshooting 130
- Troubleshooting 130
- 1 above 45hz rising above 40hz dropping 110 97 85 2 30 45hz rising 25 40hz dropping 105 92 80 3 below 30hz rising below 25hz dropping 99 86 74 131
- Check no 1 refer to p 43 131
- Check no refer to p 38 131
- Check no refer to p 40 131
- Discharge pipe temperature control 131
- If a stop takes place 4 times successively due to abnormal discharge pipe temperature the system will be shut down if the temperature being detected by the discharge pipe thermistor rises above c the compressor will stop the error is cleared when the temperature has dropped below c 131
- Malfunction decision conditions 131
- Method of malfunction detection 131
- Refrigerant shortage four way valve malfunctioning discharge pipe thermistor defective heat exchanger or outdoor air temperature thermistor defective outdoor unit pcb defective water mixed in the local piping electronic expansion valve defective stop valve defective 131
- Remote control display 131
- Service diagnosis 131
- Stop temperatures a rk x s a rk x h r y n 131
- Supposed causes 131
- The discharge pipe temperature control stop frequency drooping etc is checked with the temperature being detected by the discharge pipe thermistor 131
- The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time 131
- Troubleshooting 131
- Troubleshooting sienbe04 401a 131
- High pressure control in cooling 132
- Malfunction decision conditions 132
- Method of malfunction detection 132
- Remote control display 132
- Supposed causes 132
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 133
- Check no refer to p 38 133
- Check no refer to p 40 133
- Check no refer to p 41 133
- Check no refer to p 42 133
- Service diagnosis 133
- Troubleshooting 133
- Troubleshooting sienbe04 401a 133
- A compressor startup failure is detected by checking the compressor running condition through the position detection circuit 134
- Check no 3 refer to p 44 134
- Compressor relay cable disconnected compressor itself defective outdoor unit pcb defective stop valve closed input voltage out of specification 134
- Malfunction decision conditions 134
- Method of malfunction detection 134
- Position sensor abnormality 134
- Remote control display 134
- Service diagnosis 125 134
- Sienbe04 401a troubleshooting 134
- Supposed causes 134
- The compressor fails to start in about 15 seconds after the compressor run command signal is sent clearing condition continuous run for about 10 minutes normal the system will be shut down if the error occurs 16 times 134
- Troubleshooting 134
- Dc voltage current sensor abnormality 135
- Malfunction decision conditions 135
- Method of malfunction detection 135
- Remote control display 135
- Supposed causes 135
- Troubleshooting 135
- Malfunction decision conditions 136
- Method of malfunction detection 136
- P4 j3 j6 h9 136
- Remote control display 136
- Supposed causes 136
- Thermistor or related abnormality outdoor unit 136
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 137
- Check no refer to p 40 137
- P4 radiation fin thermistor j3 discharge pipe thermistor j6 outdoor heat exchanger thermistor h9 outdoor air temperature thermistor 137
- Service diagnosis 137
- Troubleshooting 137
- Troubleshooting sienbe04 401a 137
- Electrical box temperature rise 138
- Malfunction decision conditions 138
- Method of malfunction detection 138
- Remote control display 138
- Supposed causes 138
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 139
- Check no refer to p 40 139
- Check no refer to p 41 139
- Check no refer to p 42 139
- Service diagnosis 139
- Troubleshooting 139
- Troubleshooting sienbe04 401a 139
- Malfunction decision conditions 140
- Method of malfunction detection 140
- Radiation fin temperature rise 140
- Remote control display 140
- Supposed causes 140
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 141
- Check no refer to p 40 141
- Check no refer to p 41 141
- Check no refer to p 42 141
- Service diagnosis 141
- Troubleshooting 141
- Troubleshooting sienbe04 401a 141
- Malfunction decision conditions 142
- Method of malfunction detection 142
- Output over current detection 142
- Remote control display 142
- Supposed causes 142
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 143
- Check no 3 refer to p 44 143
- Check no refer to p 41 143
- Note if the model doesn t have spm replace the outdoor unit pcb 143
- Service diagnosis 143
- Troubleshooting 143
- Troubleshooting sienbe04 401a 143
- Insufficient gas 144
- Malfunction decision conditions 144
- Method of malfunction detection 144
- Remote control display 144
- Supposed causes 144
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 145
- Check no refer to p 38 145
- Check no refer to p 40 145
- Service diagnosis 145
- Troubleshooting 145
- Troubleshooting sienbe04 401a 145
- An abnormal voltage rise is detected by checking the specified over voltage detection circuit 146
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer the voltage is over 400v the system will be shut down if the error occurs 255 times clearing condition continuous run for about 10 minutes normal 146
- Malfunction decision conditions 146
- Method of malfunction detection 146
- Note if the model doesn t have spm replace the outdoor unit pcb 146
- Over voltage detection 146
- Remote control display 146
- Service diagnosis 137 146
- Sienbe04 401a troubleshooting 146
- Supply voltage not as specified over voltage detection circuit defective pam control part s defective 146
- Supposed causes 146
- Troubleshooting 146
- Check no 147
- Electronic expansion valve check 147
- How to check 147
- Check no 148
- Four way valve performance check 148
- Service diagnosis 139 148
- Sienbe04 401a check 148
- Check no 149
- R25 20k ω b 3950 149
- 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 149
- Thermistor resistance check 149
- Check no 150
- Discharge pressure check 150
- Installation condition check 150
- Service diagnosis 141 150
- Sienbe04 401a check 150
- Ac motor a rk x h r y n models 151
- Check no 151
- Check sienbe04 401a 151
- Dc motor a rk x s models 151
- Outdoor unit fan system check 151
- Service diagnosis 151
- Check no 0 152
- Check no 1 152
- Fig fig 152
- Inverter units refrigerant system check 152
- Measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance check to see if the power supply waveform is a sine wave fig check to see if there is waveform disturbance near the zero cross sections circled in fig 152
- Power supply waveforms check 152
- Service diagnosis 143 152
- Sienbe04 401a check 152
- Check no 3 153
- Check no 5 153
- 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 153
- If the fuse is blown out the outdoor unit fan may also be in trouble check the fan too if the voltage in step 2 is not applied it means the pcb is defective replace the pcb if the pulse in step 4 is not available it means the hall ic is defective replace the dc fan motor if there are both the voltage 2 and the pulse 4 replace the pcb 153
- Make sure the voltage of 270 30v is being applied 1 stop the operation first and then the power off and disconnect the connector s70 2 make sure there is about dc 270 v between pins 4 and 7 3 with the system and the power still off reconnect the connector s70 4 make a turn of the fan motor with a hand and make sure the pulse 0 15 v appears twice at pins 1 and 4 153
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 153
- Power transistor check 153
- Propeller fan motor s70 153
- Turning speed pulse input on the outdoor unit pcb check 153
- Check no 6 154
- Hall ic check 154
- Indoor unit 48 156
- Outdoor unit rk x h c ark x h c r y n c 90 156
- Outdoor unit rk x s c ark x s c 70 156
- Part 7 156
- Part 7 removal procedure 156
- Removal procedure 156
- Indoor unit 157
- Procedure 157
- Removal of air filter 157
- When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel 159
- Procedure 160
- Removal of front grille 160
- Procedure 163
- Removal of horizontal blade and vertical blade 163
- Disconnect connectors s1 and s7 of fan motor 165
- Disconnect one connector s6 of swing motor 165
- Disconnect the connection wires 165
- Indoor unit sienbe04 401a 165
- Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness same as the existing models 165
- Procedure 165
- Removal of electrical box pcb and swing motor 165
- Removal procedure 165
- Remove electrical box 165
- Remove front grill 165
- Remove heat exchanger thermistor 165
- Step procedure points 165
- Warning be sure to wait 10 minutes or more after turning off all power supplies before disassembling work 165
- Remove a screw on the electrical box 166
- Remove a screw on the terminal board the electrical box can be removed instead of disengaging the terminal board 166
- Pull up the electrical box forward to remove a hook is provided on the behind 167
- Disengage the four knobs on the back of the signal receiver pcb 169
- Indoor unit sienbe04 401a 169
- Removal procedure 169
- Signal receiver pcb 169
- Step procedure points 169
- Procedure 171
- Removal of heat exchanger 171
- Install of drain plug 174
- Procedure 174
- Procedure 175
- Removal of fan rotor and fan motor 175
- Remove heat exchanger 175
- To remove right side plate remove three screws 175
- Warning be sure to wait 10 minutes or more after turning off all power supplies before disassembling work 175
- Disengage hook 176
- Loosen the hexagon head set screw on the fan rotor 176
- Remove a screw on the left side plate 177
- Remove the motor and fan rotor 177
- Disengage a hook from the backward 178
- 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 178
- Outdoor unit rk x s c ark x s c 179
- Procedure 179
- Removal of panels and fan motor 179
- Loosen the 2 screws on the rear side 184
- Loosen the 3 screws on the right side 184
- Loosen the screw and lift the connection port to remove 184
- Remove the right side panel 184
- When reassembling make sure to fit the hook 185
- Procedure 186
- Removal of electrical box 186
- Procedure 188
- Removal of reactor and partition plate 188
- Procedure 190
- Removal of sound blanket 190
- Procedure 192
- Removal of four way valve 192
- Procedure 194
- Removal of compressor 194
- Heat up the brazed part of the suction side and disconnect 195
- Lift the compressor up and remove it 195
- Procedure 196
- Removal of pcb 196
- Lift and pull out the pcb 197
- Loosen the 4 screws 197
- Undo the 3 hooks on the upper side 197
- Feature of the pcb s70 fan motor s80 four way valve s90 thermistor outdoor air heat exchanger discharge pipe 198
- Procedure points 198
- Removal procedure 189 198
- Sienbe04 401a outdoor unit rk x s c ark x s c 198
- Outdoor unit rk x h c ark x h c r y n c 199
- Procedure 199
- Removal of external panels 199
- Sectional view at the front 201
- The front panel and the left side panel can be separated when the fixing screw is removed 201
- Procedure 202
- Removal of bell mouth 202
- Procedure 203
- Removal of pcb and electrical box 203
- Disconnect the fan motor connector s70 204
- Disconnect the four way valve connector s80 204
- Disconnect the 2 reactor harnesses 206
- Disconnect the 4 wire harnesses 206
- Control pcb outdoor unit 207
- Remove the 5 screws fixing the pcb 207
- The pcb has 4 hooks 207
- Undo the 4 hooks and the pcb can be disengaged 207
- Release the lead wire of the fan motor from the ditch 208
- Remove the 2 screws fixing the electrical box 208
- Remove the electrical box 208
- Remove the screw of the terminal board cover 208
- Lift and remove the electrical box 209
- Remove the terminal board cover 209
- Procedure 210
- Removal of propeller fan and fan motor 210
- Remove the 2 screws for removing the fan motor 212
- Remove the fan motor 212
- Procedure 213
- Removal of partition plate and reactor 213
- Pull the partition plate upward to remove 214
- When restoring the partition plate fit the hook into the bottom frame 214
- Remove the reactor 215
- The reactor can be released by removing the screw 215
- Procedure 216
- Removal of sound insulation pad 216
- Pull out the bottom sound insulation pad 218
- Procedure 219
- Removal of electronic expansion valve and four way valve 219
- Loosen the screw and remove the four way valve coil 220
- Procedure 223
- Removal of compressor 223
- Others 18 226
- Part 8 others 226
- For cooling only 227
- For heat pump 227
- Others 227
- Test run from the remote control 227
- How to set the different addresses control pcb of the indoor unit 1 remove the front grille 3 screws 2 remove the electrical box 1 screw 3 remove the drip proof plate 4 tabs 4 cut the address jumper ja on the control pcb 228
- Infrared remote control 1 slide the front cover and take it off 2 cut the address jumper j4 228
- Jumper setting 228
- Jumper settings 228
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 228
- When two units are installed in one room 228
- Part 9 appendix 230
- Piping diagrams 22 230
- Wiring diagrams 27 230
- Ftks20 25 35cvmb 9 8 atks20 25 35cvmb 9 ftn20 25 35cvmb9 ftks20 25 35cavmb atks20 25 35davmb 231
- Ftxs20 25 35cvmb 9 8 atxs20 25 35cvmb 9 ftyn20 25 35cvmb9 ftxs20 25 35cavmb atxs20 25 35davmb 231
- Indoor units 231
- Piping diagrams 231
- Appendix 223 232
- Cooling only 232
- Outdoor units 232
- Rks20 25cvmb 9 arks20 25cvmb rks20 25c2vmb 232
- Rks35cvmb 9 arks35cvmb rks35c2vmb 232
- Sienbe04 401a piping diagrams 232
- Appendix 233
- Piping diagrams sienbe04 401a 233
- Rkh20 25cvmb9 arkh20 25cvmb9 rn20 25cvmb9 rkh20 25cavmb arkh20 25cavmb 233
- Rkh35cvmb9 arkh35cvmb9 rn35cvmb9 rkh35cavmb arkh35cavmb 233
- Appendix 225 234
- Heat pump 234
- Rxs20 25cvmb 9 arxs20 25cvmb rxs20 25c2vmb 234
- Rxs35cvmb 9 arxs35cvmb rxs35c2vmb 234
- Sienbe04 401a piping diagrams 234
- Appendix 235
- Piping diagrams sienbe04 401a 235
- Rxh20 25cvmb9 arxh20 25cvmb9 ryn20 25cvmb9 rxh20 25cavmb arxh20 25cavmb 235
- Rxh35cvmb9 arxh35cvmb9 ryn35cvmb9 rxh35cavmb arxh35cavmb 235
- Circuit 236
- Controller 236
- Field wiring 236
- Fu c70 236
- H2p s1w 236
- Indoor 236
- Indoor units 236
- M1f h1p h3p 236
- Note that operation will 236
- On again 236
- Outdoor 236
- Pcb1 pcb2 r1t r2t 236
- Pilot lamp fan motor swing motor printed circuit board thermistor connector operation switch terminal strip 236
- Protective earth 236
- Receiver signal 236
- Restart automatically if 236
- Running capacitor 236
- S1 s32 236
- Terminal for centralized control 236
- The main power supply is turned off and then back 236
- Transmission 236
- Wht red 236
- Wireless remote 236
- Wireless remote controller 236
- Wiring diagrams 236
- X1m s1w 236
- Appendix 237
- Condenser 237
- Field wiring 237
- Fu1 3 5a 237
- Fu3 20a 237
- Indoor 237
- Outdoor 237
- Outdoor discharge 237
- Outdoor units 237
- Refer to the nameplate for the power requirements 237
- Rk x s20 25 35cvmb 9 ark x s20 25 35cvmb rk x s20 25 35c2vmb 237
- Rkh20 25 35cvmb9 arkh20 25 35cvmb9 rn20 25 35cvmb9 rkh20 25 35cavmb arkh20 25 35cavmb 237
- Wiring diagrams sienbe04 401a 237
- Appendix 229 238
- D042575b 238
- Discharge condenser 238
- Fu1 3 5a 238
- Fu3 20a 238
- Indoor 238
- Outdoor 238
- Rxh20 25 35cvmb9 arxh20 25 35cvmb9 ryn20 25 35cvmb9 rxh20 25 35cavmb arxh20 25 35cavmb 238
- Sienbe04 401a wiring diagrams 238
- Numerics 240
- Drawings flow charts 244
- B 8400 oostende belgium 246
- Btw be 0412 120 336 246
- Naamloze vennootschap 246
- Rpr oostende 246
- Siebe04 401a 05 2007 prepared in belgium by lannoo 246
- Www daikin eu 246
- Zandvoordestraat 300 246
- Ésienbe04 401a1ëí 246
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