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Daikin FDXS25EAVMB [129/223] Outdoor unit rk x s25 35e2v1b
![Daikin RKS25E2V1B [129/223] Outdoor unit rk x s25 35e2v1b](/views2/1776112/page129/bg81.png)
SiBE07-724_B Outdoor Unit - RK(X)S25/35E2V1B
Removal Procedure 119
1. Outdoor Unit - RK(X)S25/35E2V1B
1.1 Removal of Outer Panels / Fan Motor
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step
Procedure Points
1. Appearance features
Take care not to cut your
finger by the fins of the
outdoor heat exchanger.
2. Remove the panels.
The stop valve cover is
united with the shield plate.
When reassembling, make
sure to fit the 5 hooks.
1
Remove the screw of
the stop valve cover.
Pull down the stop
valve cover and remove
it.
(R11890)
Stop
valve
cover
(R3237)
Hooks
(R12421)
Shield plate
Содержание
- Duct connected type ca series ea series 1
- Inverter pair 1
- Manual 1
- Service 1
- Sibe07 724_b 1
- Inverter pair duct connected type ca series ea series 2
- Table of contents 2
- Function of thermistor 9 3 control specification 0 3
- Functions 3
- Introduction v 3
- Main functions 9 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 9 3
- Part 4 function and control 8 3
- Printed circuit board connector wiring diagram 0 3
- Specifications 3
- Caution for diagnosis 7 4
- Check 07 4
- Outdoor unit rk x s25 35e2v1b 19 4
- Part 5 operation manual 5 4
- Part 6 service diagnosis 6 4
- Part 7 removal procedure 18 4
- Problem symptoms and measures 8 3 service check function 9 4
- System configuration 6 2 operation manual 7 4
- Troubleshooting 2 4
- Application of silicon grease to a power transistor and a diode bridge 06 5
- Outdoor unit rk x s25 35g2v1b 42 5
- Outdoor unit rk x s25 35g2v1b9 68 5
- Part 8 trial operation and field settings 97 5
- Part 9 appendix 07 5
- Piping diagrams 08 5
- Pump down operation 98 2 forced cooling operation mode 99 3 trial operation 01 4 field settings 02 5
- Wiring diagrams 11 5
- Cautions regarding safety of workers 6
- Introduction 6
- Safety cautions 6
- Warning 6
- Caution 7
- Warning 7
- Cautions regarding safety of users 8
- Warning 8
- Caution 9
- Warning 9
- Caution 10
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 10
- Used icons 10
- Functions 11
- Part 1 list of functions 11
- Cooling only 12
- Functions 12
- Functions sibe07 724_b 12
- Holding functions no functions 12
- List of functions 12
- Holding functions no functions 13
- List of functions 3 13
- Sibe07 724_b functions 13
- Functions sibe07 724_b 14
- Holding functions no functions 14
- List of functions 14
- Heat pump 15
- Holding functions no functions 15
- List of functions 5 15
- Sibe07 724_b functions 15
- Functions sibe07 724_b 16
- Holding functions no functions 16
- List of functions 16
- Holding functions no functions 17
- List of functions 7 17
- Sibe07 724_b functions 17
- Part 2 specifications 18
- Specifications 18
- Cooling only 19
- Hz 230 v 19
- Sibe07 724_b specifications 19
- Specifications 19
- Specifications 9 19
- Hz 230 v 20
- Specifications 20
- Specifications sibe07 724_b 20
- Hz 230 v 21
- Sibe07 724_b specifications 21
- Specifications 11 21
- Hz 230 v 22
- Specifications 22
- Specifications sibe07 724_b 22
- Hz 230 v 23
- Sibe07 724_b specifications 23
- Specifications 13 23
- Heat pump 24
- Hz 230 v 24
- Specifications 24
- Specifications sibe07 724_b 24
- Hz 230 v 25
- Sibe07 724_b specifications 25
- Specifications 15 25
- Hz 230 v 26
- Specifications 26
- Specifications sibe07 724_b 26
- Hz 230 v 27
- Sibe07 724_b specifications 27
- Specifications 17 27
- Hz 230 v 28
- Specifications 28
- Specifications sibe07 724_b 28
- Part 3 printed circuit board connector wiring diagram 29
- Printed circuit board connector wiring diagram 0 29
- Indoor unit 30
- Printed circuit board connector wiring diagram 30
- Led1 sw1 31
- Pcb 2 display pcb 31
- Pcb detail pcb 1 control pcb 31
- Printed circuit board connector wiring diagram 21 31
- Sibe07 724_b printed circuit board connector wiring diagram 31
- Outdoor unit 32
- Rk x s25 35e2v1b 32
- Pcb 2 main pcb 33
- Pcb detail pcb 1 filter pcb 33
- Printed circuit board connector wiring diagram 23 33
- Sibe07 724_b printed circuit board connector wiring diagram 33
- Rk x s25 35g2v1b 34
- Pcb 2 main pcb 35
- Pcb detail pcb 1 filter pcb 35
- Printed circuit board connector wiring diagram 25 35
- Sibe07 724_b printed circuit board connector wiring diagram 35
- Rk x s25 35g2v1b9 36
- Pcb 2 main pcb 37
- Pcb 3 forced operation button pcb 37
- Pcb detail pcb 1 filter pcb 37
- Printed circuit board connector wiring diagram 27 37
- Sibe07 724_b printed circuit board connector wiring diagram 37
- Function of thermistor 9 3 control specification 0 38
- Main functions 9 38
- Part 4 function and control 38
- Frequency principle 39
- Main functions 39
- Temperature control 39
- Comfortable air conditioning a fine adjustment is integrated to keep the room temperature constant 40
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 40
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 40
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor temperature is 2 c 40
- For detail 40
- Forced cooling operation refer to forced operation mode on page 40
- Frequency limits the following functions regulate the minimum and maximum frequency 40
- Inverter features the inverter provides the following features 40
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables to reach the set temperature quickly 40
- The regulating capacity can be changed according to the changes in the outdoor temperature and cooling heating load 40
- Fan speed control for indoor units 41
- Detail the microcomputer automatically sets the temperature and airflow rate the difference between the room thermistor temperature at start up and the target temperature 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 42
- Outline program dry operation removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and airflow rate the temperature adjustment and fan adjustment buttons are inoperable in this mode 42
- Program dry operation 42
- Zone a thermostat off 42
- Zone b zone b 42
- Zone c thermostat on 42
- Automatic operation 43
- Cooling dry 44
- Function and control 44
- Heating 44
- Main functions sibe07 724_b 44
- Refer to temperature control on page 29 for detail 44
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 44
- The operation turns on in any zones except a 44
- The system resumes from defrost control in any zones except a 44
- The temperature difference is in the zone a 44
- The temperature difference returns to the zone c after being in the zone a 44
- Thermostat control 44
- Thermostat control is based on the difference between the room thermistor temperature and the target temperature 44
- Thermostat off condition 44
- Thermostat on condition 44
- Cooling 45
- Detail the night set mode continues operation at the target temperature for the first one hour then automatically raises the target temperature slightly in the case of cooling or lowers it slightly in the case of heating this prevents excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions and also conserves electricity 45
- Function and control 35 45
- Heating 45
- Night set mode 45
- Outline when the off timer is set the night set mode is automatically activated the night set mode keeps the airflow rate setting 45
- Sibe07 724_b main functions 45
- Home leave operation 46
- Detail when powerful button is pressed the fan speed and target temperature are converted to the following states for 20 minutes 47
- Ex powerful operation in cooling mode 47
- Inverter powerful operation 47
- Outline 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 47
- Auto restart function 48
- Hot start function 48
- Indoor unit on off button 48
- Other functions 48
- Signal receiving sign 48
- Function of thermistor 49
- Control specification 50
- Control specification sibe07 724_b 50
- Detail for cooling only model there are following modes stop and cooling including drying 50
- For heat pump model there are following modes stop cooling includes drying heating include defrosting 50
- Function and control 50
- Mode hierarchy 50
- Note unless specified otherwise an indoor dry operation command is regarded as cooling operation 50
- Outline there are two modes the one is the normal operation mode and the other is the forced operation mode for installation and providing service 50
- Frequency control 51
- D signal 1 p control the 52
- D signal and is used for frequency command 52
- D signal the difference between the room thermistor temperature and the target temperature is taken as the 52
- D value and the q value of the indoor unit q value indoor unit output determined from indoor unit volume airflow rate and other factors 52
- D value is calculated in each sampling time 15 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 52
- D value is large the frequency is increased 52
- D value is small the frequency is lowered when the 52
- D value when the 52
- Determine lower limit frequency 52
- Determine prohibited frequency 52
- Determine upper limit frequency 52
- For limiting lower limit frequency management is carried out only when the frequency rises 52
- Frequency management when other controls are functioning 52
- I control if the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the 52
- Indoor frequency command 52
- Pi control determine frequency up down by 52
- Th off thermostat off 52
- The maximum value is set as an lower limit frequency among the frequency lower limits of the following functions four way valve operation compensation draft prevention pressure difference upkeep 52
- The minimum value is set as an upper limit frequency among the frequency upper limits of the following functions compressor protection input current discharge pipe temperature heating peak cut freeze up protection defrost 52
- There is a certain prohibited frequency such as a power supply frequency 52
- Upper and lower limit of frequency by pi control the frequency upper and lower limits are set according to the command on indoor unit when the indoor or outdoor unit quiet operation command comes from the indoor unit the upper limit frequency is lowered than the usual setting 52
- When frequency is drooping frequency management is carried out only when the frequency droops 52
- When starting the compressor the frequency is initialized according to the 52
- Controls at mode changing start up 53
- Preheating operation 53
- 3 minute standby 54
- Compressor protection function 54
- Four way valve operation compensation 54
- Four way valve switching 54
- Detail 55
- Discharge pipe temperature control 55
- Outline the discharge pipe temperature is used as the internal temperature of the compressor if the discharge pipe temperature rises above a certain level the upper limit of frequency is set to keep this temperature from going up further 55
- After 2 seconds in this zone the compressor is stopped drooping zone 56
- After this the output frequency is pulled down by 2 hz every second until it reaches the keep zone keep zone 56
- Detail 56
- Frequency control in each zone stop zone 56
- Input current control 56
- Limit of the frequency is canceled 56
- Limitation of current drooping and stop value according to the outdoor temperature 56
- Outline the microcomputer calculates the input current during the compressor is running and sets the frequency upper limit from the input current in case of heat pump model this control which is the upper limit control of the frequency takes priority to the lower limit of control of four way valve operation compensation 56
- The current droops when outdoor temperature becomes higher than a certain level depending on the model 56
- The present maximum frequency goes on reset zone 56
- The upper limit of the compressor frequency is defined as operation frequency 2 hz 56
- Detail 57
- Detail the operating frequency limitation is judged with the indoor heat exchanger temperature 57
- Freeze up protection control 57
- Function and control 47 57
- Heating peak cut control 57
- Keep zone the upper limit of frequency is kept up zone the upper limit of frequency is increased 57
- Outline during cooling operation the signal sent from the indoor unit controls the operating frequency limitation and prevents freezing of the indoor heat exchanger the signal from the indoor unit is divided into zones 57
- Outline during heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure 57
- Reset zone the upper limit of frequency is canceled 57
- Sibe07 724_b control specification 57
- Stop zone when the temperature reaches the stop zone the compressor stops drooping zone the timer starts and the frequency is drooping 57
- Zone control 57
- Liquid compression protection function 58
- Outdoor fan control 58
- Conditions for canceling defrost the judgment is made with outdoor heat exchanger temperature l c 59
- Defrost control 59
- Detail conditions for starting defrost 59
- More than a minutes of accumulated time pass since the start of the operation or ending the previous defrosting 59
- Outline defrosting is carried out by the cooling cycle reverse cycle the defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish 59
- The compressor operates for 6 minutes 59
- The starting conditions is determined with the outdoor temperature and the outdoor heat exchanger temperature 59
- The system is in heating operation 59
- Control specification sibe07 724_b 60
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 60
- Electronic expansion valve control 60
- Function and control 60
- Outline 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 electronic expansion valve control when frequency changed 3 electronic expansion valve control for defrosting 4 electronic expansion valve control when the discharge pipe temperature is abnormally high 5 electronic expansion valve control when the discharge pipe thermistor is disconnected feedback control 1 discharge pipe temperature control 60
- Disconnection of the discharge pipe thermistor 61
- Fully closing with power on 61
- High discharge pipe temperature 61
- Opening limit 61
- Pressure equalization control 61
- Starting operation control 61
- Control when frequency is changed 62
- Target discharge pipe temperature control 62
- Detection of overcurrent and overload 63
- Malfunctions 63
- Refrigerant shortage control 63
- Sensor malfunction detection 63
- Standby electricity saving 64
- Part 5 operation manual 65
- System configuration 6 2 operation manual 7 65
- System configuration 66
- Operation manual 67
- Remote controller 67
- Auto dry cool heat fan operation 68
- To change the temperature setting 68
- To start operation 68
- To stop operation 68
- Dry mode auto or cool or heat or fan mode 69
- Five levels of air flow rate setting from to 69
- Indoor unit quiet operation 69
- Plus are available 69
- Press fan setting button 69
- The computer chip works to rid the room of humidity while maintaining the temperature as much as possible it automatically controls temperature and fan strength so manual adjustment of these functions is unavailable 69
- To change the air flow rate setting 69
- When the air flow is set to the noise from the indoor unit will become quieter use this when making the noise quieter 69
- Powerful operation 70
- To cancel powerful operation 70
- To start powerful operation 70
- Outdoor unit quiet operation 71
- To cancel outdoor unit quiet operation 71
- To start outdoor unit quiet operation 71
- Before using home leave operation 72
- Home leave operation 72
- To cancel home leave operation 72
- To start home leave operation 72
- Use as a favorite mode 73
- Use as an energy saving mode 73
- Useful in these cases 73
- What s the home leave operation 73
- Operation manual 74
- Operation manual sibe07 724_b 74
- Timer operation 74
- To cancel the off timer operation 74
- To use off timer operation 74
- Attention 75
- Press cancel button 75
- Press on timer button 75
- Press on timer button again 75
- Press timer setting button until the time setting reaches the point you like 75
- To cancel on timer operation 75
- To combine on timer and off timer 75
- To use on timer operation 75
- Caution for diagnosis 7 76
- Check 07 76
- Part 6 service diagnosis 76
- Problem symptoms and measures 8 3 service check function 9 76
- Troubleshooting 2 76
- Caution for diagnosis 77
- Troubleshooting with led 77
- Problem symptoms and measures 78
- Arc433 series 79
- Check method 1 1 when the timer cancel button is held down for 5 seconds 79
- Indication appears on the temperature display section 79
- Note 1 a short beep pi and two consecutive beeps pi pi indicate non corresponding codes 2 to return to the normal mode hold the timer cancel button down for 5 seconds when the remote controller is left untouched for 60 seconds it also returns to the normal mode 79
- Press the timer cancel button repeatedly until a long beep sounds 79
- Service check function 79
- The code indication changes in the sequence shown below 79
- Displayed only when system down occurs 82
- Error codes and description 82
- Troubleshooting 82
- Defective indoor unit pcb 83
- Disconnection of connector 83
- Evaluation of zero cross detection of power supply by the indoor unit pcb 83
- Indoor unit pcb abnormality 83
- Malfunction decision conditions 83
- Method of malfunction detection 83
- Note check the following connector 83
- Remote controller display 83
- Supposed causes 83
- There is no zero cross detection in approximately 10 seconds 83
- Troubleshooting 83
- Wrong models interconnected 83
- Freeze up protection control or heating peak cut control 84
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 85
- Caution 85
- Check no 6 refer to p 09 85
- Service diagnosis 75 85
- Sibe07 724_b troubleshooting 85
- Troubleshooting 85
- Breaking of the fan motor lead wires 86
- Breaking of wire inside the fan motor 86
- Check no 6 refer to p 16 86
- Defective capacitor of the fan motor 86
- Defective indoor unit pcb 86
- Fan motor ac motor or related abnormality 86
- Layer short inside the fan motor winding 86
- Malfunction decision conditions 86
- Method of malfunction detection 86
- Remote controller display 86
- Supposed causes 86
- The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed 86
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 86
- Troubleshooting 86
- Thermistor or related abnormality indoor unit 87
- Breaking of the connection wires between the indoor and outdoor units wire no 3 88
- Check no 0 refer to p 11 88
- Defective indoor unit pcb 88
- Defective outdoor unit pcb 88
- Disturbed power supply waveform 88
- Malfunction decision conditions 88
- Method of malfunction detection 88
- Remote controller display 88
- Signal transmission error between indoor unit and outdoor unit 88
- Supposed causes 88
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 88
- The data sent from the outdoor unit cannot be received normally or the content of the data is abnormal 88
- Troubleshooting 88
- Wiring error 88
- Defective indoor unit pcb 89
- Defective outdoor unit pcb 89
- Malfunction decision conditions 89
- Method of malfunction detection 89
- Remote controller display 89
- Supposed causes 89
- The pair type and multi type are interconnected 89
- The supply power is detected for its requirements different from pair type and multi type by the indoor outdoor transmission signal 89
- Troubleshooting 89
- Unspecified voltage between indoor unit and outdoor unit 89
- Wrong indoor unit pcb or outdoor unit pcb mounted 89
- Wrong models interconnected 89
- Wrong wiring of connecting wires 89
- Broken harness between pcbs 90
- Defective outdoor unit pcb 90
- Malfunction decision conditions 90
- Method of malfunction detection 90
- Momentary fall of voltage 90
- Momentary power failure etc 90
- Outdoor unit pcb abnormality 90
- Remote controller display 90
- Supposed causes 90
- The microprocessor program runs out of control 90
- The system checks to see if the zero cross signal comes in properly 90
- The system follows the microprocessor program as specified 90
- The zero cross signal is not detected 90
- Troubleshooting 90
- A compressor overload is detected through compressor ol 91
- Check no 1 refer to p 11 91
- Check no 4 refer to p 07 91
- Check no 5 refer to p 08 91
- Check no 6 refer to p 09 91
- Defective discharge pipe thermistor 91
- Defective electronic expansion valve or coil 91
- Defective four way valve or coil 91
- Defective outdoor unit pcb 91
- Defective stop valve 91
- If the error repeats twice the system is shut down 91
- Malfunction decision conditions 91
- Method of malfunction detection 91
- Ol activation compressor overload 91
- Refrigerant shortage 91
- Remote controller display 91
- Reset condition continuous run for about 60 minutes without any other error 91
- Supposed causes 91
- The operating temperature condition is not specified 91
- Troubleshooting 91
- Water mixed in refrigerant 91
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 92
- Check no 4 refer to p 13 92
- Compressor harness disconnected 92
- Compressor lock 92
- Compressor locked 92
- If the error repeats 16 times the system is shut down 92
- Malfunction decision conditions 92
- Method of malfunction detection 92
- Operation stops due to overcurrent 92
- Remote controller display 92
- Reset condition continuous run for about 11 minutes without any other error 92
- Supposed causes 92
- Troubleshooting 92
- An error is determined with the high voltage fan motor rotation speed detected by the hall ic 93
- Check no 5 refer to p 15 93
- Dc fan lock 93
- Defective fan motor 93
- Defective outdoor unit pcb 93
- Disconnection of the fan motor 93
- Foreign matters stuck in the fan 93
- If the error repeats 16 times the system is shut down 93
- Malfunction decision conditions 93
- Method of malfunction detection 93
- Remote controller display 93
- Reset condition continuous run for about 11 minutes without any other error 93
- Supposed causes 93
- The fan does not start in 15 60 seconds depending on the model even when the fan motor is running 93
- Troubleshooting 93
- An input overcurrent is detected by checking the input current value with the compressor running 94
- Check no 4 refer to p 13 94
- Check no 7 refer to p 10 94
- Check no 8 refer to p 10 94
- Defective compressor 94
- Defective outdoor unit pcb 94
- Defective power module 94
- Input overcurrent detection 94
- Malfunction decision conditions 94
- Method of malfunction detection 94
- Remote controller display 94
- Short circuit 94
- Supposed causes 94
- The following current with the compressor running continues for 2 seconds cooling heating above 9 5 a refer to input current control on page 46 for detail 94
- Troubleshooting 94
- Four way valve abnormality 95
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 96
- Check no 1 refer to p 11 96
- Check no 5 refer to p 08 96
- Check no 6 refer to p 09 96
- Service diagnosis 96
- Troubleshooting 96
- Troubleshooting sibe07 724_b 96
- Discharge pipe temperature control 97
- Check no 4 refer to p 07 98
- Check no 6 refer to p 09 98
- Check no 7 refer to p 10 98
- Check no 8 refer to p 10 98
- Check no 9 refer to p 11 98
- Defective electronic expansion valve or coil 98
- Defective outdoor fan motor 98
- Defective outdoor heat exchanger thermistor 98
- Defective outdoor unit pcb 98
- Defective stop valve 98
- Dirty outdoor heat exchanger 98
- High pressure control in cooling 98
- High pressure control operation halt frequency drop etc is activated in cooling operation if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit 98
- Malfunction decision conditions 98
- Method of malfunction detection 98
- Remote controller display 98
- Supposed causes 98
- The error is cleared when the temperature drops below b c 98
- The installation space is not large enough 98
- The temperature sensed by the outdoor heat exchanger thermistor rises above a c 98
- Troubleshooting 98
- Compressor system sensor abnormality 99
- Position sensor abnormality 100
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 101
- Check no 4 refer to p 13 101
- Check no 9 refer to p 16 101
- Service diagnosis 91 101
- Sibe07 724_b troubleshooting 101
- Troubleshooting 101
- Dc voltage current sensor abnormality 102
- Thermistor or related abnormality outdoor unit 103
- Caution 104
- Check no 6 refer to p 09 104
- Discharge pipe thermistor 104
- For rk x s25 35g2v1b rk x s25 35g2v1b9 models 104
- Note in case of 104
- Outdoor heat exchanger thermistor 104
- Outdoor temperature thermistor 104
- Radiation fin thermistor 104
- Replace the outdoor unit pcb 104
- Service diagnosis 104
- Troubleshooting 104
- Troubleshooting sibe07 724_b 104
- Electrical box temperature rise 105
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 106
- Check no 6 refer to p 09 106
- Check no 7 refer to p 10 106
- Check no 9 refer to p 11 106
- Rk x s25 35e2v1b 80 70 80 106
- Service diagnosis 106
- Troubleshooting rk x s25 35e2v1b models 106
- Troubleshooting sibe07 724_b 106
- C rk x s25 35g2v1b 80 70 80 107
- Caution 107
- Check no 7 refer to p 10 107
- Check no 9 refer to p 11 107
- Rk x s25 35g2v1b9 98 75 83 107
- Service diagnosis 97 107
- Sibe07 724_b troubleshooting 107
- Troubleshooting rk x s25 35g2v1b rk x s25 35g2v1b9 models 107
- Radiation fin temperature rise 108
- C rk x s25 35e2v1b 90 109
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 109
- Check no 6 refer to p 09 109
- Check no 7 refer to p 10 109
- Check no 9 refer to p 11 109
- Note refer to application of silicon grease to a power transistor and a diode bridge on page 206 for detail 109
- Service diagnosis 99 109
- Sibe07 724_b troubleshooting 109
- Troubleshooting rk x s25 35e2v1b models 109
- Caution 110
- Check no 7 refer to p 10 110
- Check no 9 refer to p 11 110
- Note refer to application of silicon grease to a power transistor and a diode bridge on page 206 for detail 110
- Rk x s20 35g2v1b 110
- Rk x s20 35g2v1b9 98 110
- Service diagnosis 110
- Troubleshooting rk x s25 35g2v1b rk x s25 35g2v1b9 models 110
- Troubleshooting sibe07 724_b 110
- Output overcurrent detection 111
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 112
- Caution 112
- Check no 3 refer to p 12 112
- Check no 4 refer to p 13 112
- Check no 7 refer to p 10 112
- Check no 8 refer to p 10 112
- Service diagnosis 112
- Troubleshooting 112
- Troubleshooting sibe07 724_b 112
- Refrigerant shortage 113
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 114
- Caution 114
- Check no 4 refer to p 07 114
- Check no 6 refer to p 09 114
- Service diagnosis 114
- Troubleshooting 114
- Troubleshooting sibe07 724_b 114
- Low voltage detection or over voltage detection 115
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 116
- Service diagnosis 116
- Troubleshooting 116
- Troubleshooting sibe07 724_b 116
- Electronic expansion valve check 117
- How to check 117
- Check no 5 118
- Check sibe07 724_b 118
- Four way valve performance check 118
- Service diagnosis 118
- Check no 6 disconnect the connectors of the thermistors from the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the table and the graph below 119
- For the models in which the thermistor is directly mounted on the pcb disconnect the connector for the pcb and measure 119
- Thermistor resistance check 119
- Check no 7 120
- Check no 8 120
- Check sibe07 724_b 120
- Discharge pressure check 120
- Installation condition check 120
- Service diagnosis 120
- Check no 0 measure the power supply waveform between no 1 and no 2 on the terminal board and check the waveform disturbance 121
- Check no 1 121
- Check no 9 dc motor 121
- Check to see if the power supply waveform is a sine wave fig 121
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 121
- Fig fig 121
- Inverter units refrigerant system check 121
- Outdoor fan system check 121
- Power supply waveforms check 121
- Service diagnosis 111 121
- Sibe07 724_b check 121
- Check no 3 122
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector 122
- Follow the procedure below to measure resistance between the terminals of the db1 and the terminals of the compressor with a multi tester evaluate the measurement results for a judgment 122
- Note check to make sure that the voltage between and of the diode bridge db1 is approx 0 v before checking 122
- Power module check 122
- Inverter checker check 123
- Check no 5 rk x s25 35e2v1b rk x s25 35g2v1b make sure that the voltage of 320 30 v is applied 1 set operation off and power off disconnect the connector s70 2 check that the voltage between the pins 4 7 is 320 vdc 3 check that the control voltage between the pins 3 4 is 15 vdc 4 check that the rotation command voltage between the pins 2 4 is 0 15 vdc 5 keep operation off and power off connect the connector s70 6 check whether 2 pulses 0 15 vdc are output at the pins 1 4 when the fan motor is rotated 1 turn by hand 125
- Defective hall ic 125
- Defective pcb 125
- Replace the outdoor fan motor if ok in both steps 2 and 4 125
- Replace the outdoor unit pcb 125
- Replace the outdoor unit pcb if ng in step 4 125
- Rk x s25 35g2v1b9 1 check that the voltage between the pins 10 11 is 15 vdc 2 check if the hall ic generates the rotation pulse 0 15 vdc 4 times between the pins 10 12 10 13 when the fan motor is manually rotated once 125
- Rotation pulse check on the outdoor unit pcb 125
- Service diagnosis 115 125
- Sibe07 724_b check 125
- When the fuse is melted check the outdoor fan motor for proper function if ng in step 2 125
- Hall ic check 126
- Main circuit short check 126
- Outdoor unit rk x s25 35e2v1b 19 128
- Outdoor unit rk x s25 35g2v1b 42 128
- Outdoor unit rk x s25 35g2v1b9 68 128
- Part 7 removal procedure 128
- Outdoor unit rk x s25 35e2v1b 129
- Removal of outer panels fan motor 129
- Remove the 2 screws and remove the fan motor fixing frame 133
- Remove the 4 screws and remove the fan motor 133
- Lift up the guard net and remove it 134
- Release the outdoor temperature thermistor 134
- Remove the 2 screws on the rear side 134
- Remove the right side panel 134
- Remove the 4 screws on the right side panel 135
- Remove the screw near the stop valves 135
- Lift up the right side panel and remove it 136
- Unfasten the hook on the rear side 136
- When reassembling make sure to fit the hook 136
- Removal of electrical box 137
- Lift and remove the electrical box 140
- Removal of pcb 141
- Removal of reactor partition plate 143
- Removal of sound blanket 145
- Pull the sound blanket bottom out 146
- Pull the sound blanket inner out 146
- Removal of four way valve 147
- Removal of compressor 150
- Outdoor unit rk x s25 35g2v1b 152
- Removal of outer panels fan motor 152
- Remove the 2 screws and lift the top panel 153
- Remove the 4 screws and remove the discharge grille 153
- Remove the drip proof plate 153
- The discharge grille has 4 hooks 153
- Remove the 8 screws of the front panel 154
- The front panel has 4 hooks 154
- Unfasten the hooks pull and remove the front panel 154
- Remove the screw and remove the fan motor fixing frame 157
- When reassembling fit the lower hooks into the bottom frame 157
- Lift up the guard net and remove it 158
- Release the outdoor temperature thermistor 158
- Remove the 2 screws on the rear side 158
- Remove the right side panel 158
- Remove the 4 screws on the right side panel 159
- Remove the screw near the stop valves 159
- Lift up the right side panel and remove it 160
- Unfasten the hook on the rear side 160
- When reassembling make sure to fit the hook 160
- Removal of electrical box 161
- Cut the clamps at 2 locations 163
- Disconnect the connectors for the filter pcb hl3 hn3 163
- Remove the wire harness for standby electricity saving 163
- Lift and remove the electrical box 164
- Removal of thermistors 165
- Feature of the thermistors 166
- Removal of pcb 167
- Lift and pull out the main pcb 168
- Remove the 4 screws 168
- Unfasten the 3 hooks on the upper side 168
- Removal of reactor partition plate 170
- Removal of sound blanket 172
- Removal of four way valve 173
- Removal of compressor 176
- Outdoor unit rk x s25 35g2v1b9 178
- Removal of outer panels fan motor 178
- Remove the 2 screws and lift the top panel 179
- Remove the 4 screws and remove the discharge grille 179
- Remove the drip proof plate 179
- The discharge grille has 4 hooks 179
- Remove the 8 screws of the front panel 180
- The front panel has 4 hooks 180
- Unfasten the hooks pull and remove the front panel 180
- Cut the clamp 182
- Disconnect the connector for the fan motor s70 182
- Release the fan motor lead wire from the hook 182
- Remove the screw and remove the fan motor fixing frame 183
- When reassembling fit the lower hooks into the bottom frame 183
- Remove the 4 screws on the right side panel 185
- Remove the screw near the stop valves 185
- Unfasten the hook on the rear side 185
- When reassembling make sure to fit the hook 185
- Lift up the guard net and remove it 186
- Lift up the right side panel and remove it 186
- When reassembling make sure to fit the hook 186
- Removal of electrical box 187
- Be careful not to lose the clip for the thermistor 189
- Lift and remove the electrical box 189
- Release the discharge pipe thermistor 189
- Removal of pcb 190
- Cut the clamps at the 2 locations 192
- Disconnect the connector for the filter pcb s10 192
- Release the harness 192
- Cut the clamp 195
- Release the harnesses from the hook 195
- Remove the filter pcb 195
- Lift and pull out the filter pcb 196
- Release the harnesses from the hooks 196
- Remove the screw 196
- Unfasten the 2 hooks 196
- Feature of the filter pcb 197
- Refer to page 27 for detail 197
- Removal of reactor partition plate 198
- Removal of sound blanket 200
- Pull the sound blanket bottom out 201
- Pull the sound blanket inner out 201
- Removal of four way valve 202
- Removal of compressor 205
- Application of silicon grease to a power transistor and a diode bridge 06 207
- Part 8 trial operation and field settings 207
- Pump down operation 98 2 forced cooling operation mode 99 3 trial operation 01 4 field settings 02 207
- Pump down operation 208
- Detail 209
- Forced cooling operation mode 209
- Indoor unit 209
- Outdoor unit rk x s25 35e2v1b rk x s25 35g2v1b9 209
- Outline forced operation mode includes only forced cooling 209
- Outdoor unit rk x s25 35g2v1b9 210
- Trial operation 211
- Cut the address setting jumper j4 212
- Cut the address setting jumper ja on the control pcb 212
- Field settings 212
- Indoor unit pcb 212
- When 2 indoor units are installed in 1 room 1 of the 2 pairs of indoor unit and wireless remote controller can be set for different address both the indoor unit pcb and the wireless remote controller need alteration 212
- When 2 units are installed in 1 room 212
- Wireless remote controller 212
- Standby electricity saving 213
- Facility setting jumper cooling at low outdoor temperature 214
- A humidifier might cause dew jumping from the indoor unit outlet vent 4 cutting jumper sets the indoor fan tap to the highest position 215
- For the location of the jumper refer to the following pages indoor unit page 21 outdoor unit page 23 25 27 215
- Jumper settings 215
- Application of silicon grease to a power transistor and a diode bridge 216
- Diode bridge diode bridge rectifier stack etc 216
- Ng foreign object ok evenly applied silicon grease ng not evenly applied 216
- Not applied paper waste 216
- Power transistor trm tpm igbt ipm spm etc 216
- Take out a pcb 216
- Part 9 appendix 217
- Piping diagrams 08 217
- Wiring diagrams 11 217
- Appendix 218
- Fdk x s25 35cavmb fdk x s25 35eavmb 218
- Indoor unit 218
- Piping diagrams 218
- Piping diagrams sibe07 724_b 218
- Appendix 209 219
- Cooling only 219
- Outdoor unit 219
- Rks25 35e2v1b 219
- Rks25 35g2v1b rk x s25 35g2v1b9 219
- Sibe07 724_b piping diagrams 219
- Appendix 220
- Heat pump 220
- Piping diagrams sibe07 724_b 220
- Rxs25 35e2v1b 220
- Rxs25 35g2v1b rxs25 35g2v1b9 220
- D045012l 221
- D046707m 221
- Fdk x s25 35cavmb fdk x s25 35eavmb 221
- Indoor unit 221
- Outdoor unit 221
- Rk x s25 35e2v1b 221
- Wiring diagrams 221
- Appendix 222
- Rk x s25 35g2v1b 222
- Rk x s25 35g2v1b9 222
- Wiring diagrams sibe07 724_b 222
- Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 if the outdoor unit is to be installed close to the sea shore direct exposure to the sea breeze should be avoided if you need to install the outdoor unit close to the sea shore contact your local distributor 223
- Ask a qualified installer or contractor to install this product do not try to install the product yourself improper installation can result in water or refrigerant leakage electrical shock fire or explosion 223
- Cautions on product corrosion 223
- Daikin industries ltd s products are manufactured for export to numerous countries throughout the world daikin industries ltd does not have control over which products are exported to and used in a particular country prior to purchase please therefore confirm with your local authorised importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used this statement does not purport to exclude restrict or modify the application of any local legislation 223
- Http www daikin com global_ac 223
- If you have any enquiries please contact your local importer distributor and or retailer 223
- Read the user s manual carefully before using this product the user s manual provides important safety instructions and warnings be sure to follow these instructions and warnings 223
- Sibe07 724_b printed in japan 01 2011 b ak 223
- Use only those parts and accessories supplied or specified by daikin ask a qualified installer or contractor to install those parts and accessories use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion 223
- Warning 223
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