![Daikin FTK25BVMB [141/201] When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel](/img/pdf.png)
Daikin FTK25BVMB [141/201] When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel
![Daikin ATK25BVMB [141/201] When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel](/views2/1780807/page141/bg8d.png)
Indoor Unit SiBE04-302
132 Removal Procedure
3
When restoring the air
filter, make sure that
the projection parts on
the panel are in the
guide groove, and then
shut the panel.
Step Procedure Points
Содержание
- Inverter pair wall mounted type b series 1
- Manual 1
- Service 1
- Sibe04 302 1
- Cooling only 2
- Heat pump 2
- Indoor unit 2
- Inverter pair inverter pair inverter pair inverter pair wall mounted type wall mounted type wall mounted type wall mounted type b series b series b series b series 2
- Outdoor unit 2
- Table of contents 2
- Control specification 5 3
- Function of main structural parts 2 3
- Functions 3
- Introduction v 3
- Main functions 0 3
- Part 1 list of function 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 3 3
- Part 4 function and control 9 3
- Printed circuit board connector wiring diagram 4 3
- Specifications 0 3
- Caution for diagnosis 8 2 problem symptoms and measures 9 3 service check function 0 4 troubleshooting 1 4
- Check 20 4
- Indoor unit 30 4
- Part 5 system configuration 9 4
- Part 6 service diagnosis 7 4
- Part 7 removal procedure 29 4
- System configuration 0 2 instruction in case of ftk x s 25 35 bvmb 1 4
- Drawings flow charts v 5
- Index i 5
- Others 76 5
- Outdoor unit 52 5
- Part 8 others 75 5
- Part 9 appendix 79 5
- Piping diagrams 80 5
- Wiring diagrams 83 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
- Part 1 list of function 10
- Cooling only 11
- Functions 11
- Functions sibe04 302 11
- List of function 11
- List of function 3 12
- Sibe04 302 functions 12
- Functions sibe04 302 13
- Holding functions no functions 13
- List of function 13
- Heat pump 14
- List of function 5 14
- Sibe04 302 functions 14
- Functions sibe04 302 15
- List of function 15
- Holding functions no functions 16
- List of function 7 16
- Sibe04 302 functions 16
- Part 2 specifications 18
- Cooling only 19
- Specifications 19
- Specifications sibe04 302 19
- V 50hz 19
- Sibe04 302 specifications 20
- Specifications 11 20
- V 50hz 20
- Specifications 21
- Specifications sibe04 302 21
- V 50hz 21
- Sibe04 302 specifications 22
- Specifications 13 22
- V 50hz 22
- Specifications 23
- Specifications sibe04 302 23
- V 50hz 23
- Sibe04 302 specifications 24
- Specifications 15 24
- V 50hz 24
- Heat pump 25
- Specifications 25
- Specifications sibe04 302 25
- V 50hz 25
- Sibe04 302 specifications 26
- Specifications 17 26
- V 50hz 26
- Specifications 27
- Specifications sibe04 302 27
- V 50hz 27
- Sibe04 302 specifications 28
- Specifications 19 28
- V 50hz 28
- Specifications 29
- Specifications sibe04 302 29
- V 50hz 29
- Sibe04 302 specifications 30
- Specifications 21 30
- V 50hz 30
- Part 3 printed circuit board connector wiring diagram 32
- Indoor unit 33
- Printed circuit board connector wiring diagram 33
- Outline of pcb 34
- Printed circuit board connector wiring diagram 25 34
- Sibe04 302 printed circuit board connector wiring diagram 34
- Detail of pcb 35
- Printed circuit board connector wiring diagram 35
- Printed circuit board connector wiring diagram sibe04 302 35
- Outdoor unit 36
- Detail of pcb 1 37
- Detail of pcb 2 37
- Control specification 5 38
- Function of main structural parts 2 38
- Main functions 0 38
- Part 4 function and control 38
- Part 4 part 4 part 4 part 4 function and control function and control function and control function and control 38
- Additional control parameters 39
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 39
- Forced cooling operation 39
- Frequency principle 39
- Frequency restrictions 39
- Initial settings 39
- 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 39
- 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 39
- Main functions 39
- Note see the list of functions for the functions applicable to different models 39
- The difference between the room temperature and the set temperature 39
- The load condition of the operating indoor unit 39
- The target frequency is adapted by additional parameters in the following cases 39
- 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 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 air temperature is 2 c 40
- Forced cooling operation for more information refer to forced operation mode on page 40
- Frequency limits the following table shows the functions that define 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 a quick set temperature 40
- The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load 40
- Power airflow dual flaps wide angle louvers and auto swing 41
- 35kw class 500 860 rpm during powerful operation 850 910 rpm 42
- Automatic air flow control for cooling 42
- Automatic air flow control for heating 42
- 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 42
- Fan speed control for indoor units 42
- For more information about hall ic refer to trouble shooting for fan motor on page 95 42
- Function and control 33 42
- H hh powerful 42
- Ll cooling thermostat off sl silent 42
- Note 1 during powerful operation fan operate h tap 50 90 rpm 2 fan stops during defrost operation 42
- Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 42
- Sibe04 302 main functions 42
- Step cooling heating dry mode lll heating thermostat off 42
- The following drawing explains the principle for fan speed control for heating 42
- The following drawing explains the principle of fan speed control for cooling 42
- Within this range the airflow rate is automatically controlled when the airflow adjusting button is set to automatic 42
- In case of inverter units 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 43
- Programme dry function 43
- 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 43
- Automatic operation 44
- Night set mode 45
- 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 46
- Function and control 37 46
- In case of fan mode the fan speed reduces by 50 rpm 46
- Intelligent eye 46
- Processing 1 detection method by intelligent eye 46
- Sibe04 302 main functions 46
- The motions for example in cooling 46
- 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 46
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output 46
- 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 cooling 2 c higher dry 1 c higher and auto according to the operation mode at that time 46
- Home leave operation 48
- Details of the control 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 49
- Ex powerful operation in cooling mode 49
- Inverter powerful operation 49
- 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 49
- Tpf 20min 49
- Air purifying filter 50
- Auto restart function 50
- Hot start function 50
- Mold proof air filter 50
- On off button on indoor unit 50
- Other functions 50
- Photocatalytic deodorizing filter 50
- Self diagnosis digital display 50
- Signal receiving sign 50
- Cooling only model 51
- Function and control 51
- Function of main structural parts 51
- Function of main structural parts sibe04 302 51
- Heat pump model 51
- Main structural parts 51
- Function of thermistor 52
- Heat pump model 52
- Cooling only model 53
- Control specification 54
- Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting 54
- For cooling only model there are following models stop and cooling including drying 54
- Function and control 45 54
- Mode hierarchy 54
- Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation 54
- Outline there are two modes the mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service 54
- Sibe04 302 control specification 54
- Frequency control 55
- D signal 1 p control calculate 56
- D signal and is used for frequency command 56
- D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the 56
- D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 i control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the 56
- D value is large increase the frequency 3 limit of frequency variation width when the difference between input current and input current drooping value is less than 1 a the frequency increase width must be limited 4 frequency management when other controls are functioning 56
- D value is small lower the frequency when the 56
- D value obtaining the fixed 56
- D value of the indoor unit and the q value of the indoor unit q value indoor unit output determined from indoor unit volume air flow rate and other factors 56
- D value when the 56
- Determine lower limit frequency 56
- For limiting lower limit frequency management is carried out only when the frequency rises 5 upper and lower limit of frequency by pi control the frequency upper and lower limits are set depending on indoor unit when low noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit the upper limit frequency must be lowered than the usual setting 56
- Frequency initial setting 56
- Indoor frequency command 56
- Outline when starting the compressor or when conditions are varied due to the change of the room the frequency must be initialized according to the 56
- Pi control determine frequency up down by 56
- Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep 4 determine prohibited frequency 56
- Th off thermostat off 56
- There is a certain prohibited frequency such as a power supply frequency 56
- When frequency is drooping frequency management is carried out only when the frequency droops 56
- 3 minutes stand by 57
- Compressor protection function 57
- Controls at mode changing start up 57
- Four way valve operation compensation 57
- Four way valve switching 57
- Preheating operation 57
- Discharge pipe control 58
- Input current control 58
- Freeze up protection control 59
- Heating peak cut control 59
- Fan control 60
- Moisture protection function 1 securing of differential pressure and blown air temperature 60
- Actual constant 61
- Common setting for 25 35 class 61
- Detail 61
- Doa outdoor air temperature cgc compressor guard for cooling cgw compressor guard for heating fcg frequency guard for compressor protection 61
- Moisture protection function 2 61
- Operation stop depending on the outdoor air temperature compressor operation turns off under the conditions that the system is in cooling operation and outdoor air temperature is below 10 c ftk x s atk x s series 0 c others 61
- Outline in order to obtain the dependability of the compressor the compressor must be stopped according to the conditions of the temperature of the outdoor air and outdoor heat exchanger 61
- The set of a constant doa1cg doa2cg doa3cg fcg7 and fcg8 have constants for cooling heating separately and these constants are distinguished with a suffix c w 61
- Defrost control 62
- Detail 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 62
- Function and control 53 62
- Outline 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 62
- Sibe04 302 control specification 62
- Control specification sibe04 302 63
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 63
- Electronic expansion valve control 63
- Function and control 63
- 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 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 63
- Disconnection of the discharge pipe thermistor 64
- Fully closing with power on 64
- High temperature of the discharge pipe 64
- Opening limit 64
- Pressure equalization control 64
- Starting operation control 64
- Control when frequency is changed 65
- Target discharge pipe temperature control 65
- Detection of over load and over current 66
- Insufficient gas control 66
- Malfunctions 66
- Sensor malfunction detection 66
- Additional function 67
- Compressor operating frequency is increased to p1 max max hz of operating room and outdoor unit airflow rate is increased 67
- Detail forced cooling 67
- Forced operation mode 67
- Outline forced operating mode includes only forced cooling 67
- Power supply voltage is detected each time equipment operation starts 67
- Powerful operation mode 67
- Voltage detection function 67
- Part 5 system configuration 68
- System configuration 0 2 instruction in case of ftk x s 25 35 bvmb 1 68
- System configuration 69
- Caution 70
- Instruction in case of ftk x s 25 35 bvmb 70
- Safety precautions 70
- Warning 70
- A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbour 71
- A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration 71
- Consider nuisance to your neighbours from noises 71
- Electrical work 71
- For power supply be sure to use a separate power circuit dedicated to the air conditioner 71
- I for installation choose a place as described below 71
- Installation site 71
- Places where snow may block the outdoor unit 71
- Places where sulfide gas occurs such as hot springs 71
- Places with an oily ambient or where steam or soot occurs 71
- Relocating the air conditioner requires specialized knowledge and skills please consult the dealer if reloca tion is necessary for moving or remodeling 71
- Salty environment such as coastal areas 71
- System relocation 71
- I indoor unit 72
- Names of parts 72
- On off 72
- I outdoor unit 73
- Iiii outdoor unit 73
- Indoor unit 73
- Arc433a1 a2 74
- I remote controller 74
- I to set the batteries 75
- Preparation before operation 75
- Attention 76
- Choose a place from where the sig nals reach the unit 76
- Fix the holder to a wall a pillar etc with the screws supplied with the holder 76
- I to fix the remote controller holder on the wall 76
- I to operate the remote controller 76
- Place the remote controller in the remote controller holder 76
- Preparation before operation 76
- Be careful not to cool heat the room too much keeping the temperature setting at a moderate level helps save energy cover windows with a blind or a curtain blocking sunlight and air from outdoors increases the cooling heating effect clogged air filters cause inefficient operation and waste energy clean them once in about every two weeks 77
- I to set the clock 77
- I turn the breaker on 77
- If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 77
- Instruction in case of ftk x s 25 35 bvmb sibe04 302 77
- Operation outside this humidity or temperature range may cause a safety device to disable the system 77
- Press clock button 77
- Press timer setting button to set the clock to the present time 77
- Sensor 77
- Silent 77
- System configuration 77
- The air conditioner always consumes 15 35 watts of electricity even while it is not operating 77
- Use the air conditioner in the following conditions 77
- Auto dry cool heat fan operation 78
- I to change the temperature setting 78
- I to start operation 78
- I to stop operation 78
- I to change the air flow direction 79
- I to change the air flow rate setting 79
- Press fan setting button 79
- Adjusting the air flow direction 80
- I to adjust the horizontal blades flaps 80
- I to adjust the vertical blades louvers 81
- Notes on flaps and louvers angles 81
- I to cancel powerful operation 82
- I to start powerful operation 82
- Powerful operation 82
- I to cancel outdoor unit silent operation 83
- I to start outdoor unit silent operation 83
- Outdoor unit silent operation 83
- Before using home leave operation 84
- Home leave operation 84
- I to cancel home leave operation 84
- I to start home leave operation 84
- To set the temperature and air flow rate for home leave operation 84
- I useful in these cases 85
- I what s the home leave operation 85
- Use as a favorite mode 85
- Use as an energy saving mode 85
- Intelligent eye operation 86
- Caution 87
- I to adjust the angle of the intelligent eye sensor 87
- Intelligent eye is useful for energy saving 87
- Notes on intelligent eye 87
- I to cancel the off timer operation 88
- I to use off timer opera tion 88
- Timer operation 88
- Attention 89
- I to cancel on timer operation 89
- I to combine on timer and off timer 89
- I to use on timer operation 89
- Press cancel button 89
- Press on timer button 89
- Press on timer button again 89
- Press timer setting button until the time setting reaches the point you like 89
- Care and cleaning 90
- Caution 90
- I front grille 90
- I indoor unit outdoor unit and remote controller 90
- Clean or replace each filter 91
- Detach the filter element and attach a new one 91
- Dry the photocatalytic deodorizing filter in the sun 91
- Filters 91
- I air filter 91
- I air purifying filter green 91
- I photocatalytic deodorizing filter gray 91
- Maintenance 91
- Open the front grille page 24 91
- Pull out the air filters 91
- Replace approximately once every 3 months 91
- Replacement 91
- See below 91
- Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front grille 91
- Take off the air purifying filter photocatalytic deodorizing filter 91
- Wash the air filters with water or clean them with vacuum cleaner 91
- Air purifying filter without frame 92
- Clean the air filters and set them again 92
- Dispose of old air filters as non burnable waste and 92
- Filters as burnable waste 92
- I before a long idle period 92
- Operate the fan only for several hours on a fine day to dry out the inside 92
- Photocatalytic deodorizing filter and air purifying filter with frame 92
- Photocatalytic deodorizing filter without frame 92
- Press mode button and select fan operation 92
- Press on off button and start operation 92
- Take out batteries from the remote controller 92
- The paper material is torn or broken during cleaning 92
- Turn off the breaker for the room air conditioner 92
- Case explanation 93
- These cases are not troubles 93
- Trouble shooting 93
- Case check 94
- Check again 94
- Call the service shop immediately 95
- Disposal requirements 95
- I the power cord is abnormally hot or damaged i an abnormal sound is heard during operation i the safety breaker a fuse or the earth leakage breaker cuts off the operation frequently i a switch or a button often fails to work properly i there is a burning smell i water leaks from the indoor unit 95
- Turn the breaker off and call the service shop 95
- Warning 95
- We recommend periodical maintenance 95
- Caution for diagnosis 8 2 problem symptoms and measures 9 3 service check function 0 4 troubleshooting 1 96
- Check 20 96
- Part 6 part 6 part 6 part 6 service diagnosis service diagnosis service diagnosis service diagnosis 96
- Part 6 service diagnosis 96
- Caution for diagnosis 97
- Indicator lamps 97
- Note ftk x s atk x s series 10 c 98
- Problem symptoms and measures 98
- Arc433a1 a2 99
- In the arc433a 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 99
- 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 99
- Press the timer cancel button repeatedly until a continuous beep is produced 99
- Service check function 99
- The code indication changes in the sequence shown below and notifies with a long beep 99
- Displayed only when system down occurs 100
- Error codes and description 100
- Troubleshooting 100
- Indoor unit pcb abnormality 101
- Freeze up protection control or high pressure control 102
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 103
- Check no refer to p 22 103
- Note if the outdoor air temperature is below 10 c in the cooling mode the system may get interrupted with error a5 displayed the system will be reset itself but this stop will be put in the error history memory 103
- Service diagnosis 103
- Troubleshooting 103
- Troubleshooting sibe04 302 103
- Check no 6 refer to p 27 104
- Detection error due to faulty indoor unit pcb 104
- Fan motor ac motor or related abnormality 104
- Malfunction decision conditions 104
- Method of malfunction detection 104
- Operation halt due to breaking of the fan motor lead wires 104
- Operation halt due to breaking of wire inside the fan motor 104
- Operation halt due to faulty capacitor of the fan motor 104
- Operation halt due to short circuit inside the fan motor winding 104
- Remote controller display 104
- Service diagnosis 95 104
- Sibe04 302 troubleshooting 104
- Supposed causes 104
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 104
- Troubleshooting 104
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 104
- Thermistor or related abnormality indoor unit 105
- Check no 0 refer to p 25 106
- Faulty indoor unit pcb 106
- Faulty outdoor unit pcb 106
- Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 106
- Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform 106
- Indoor unit outdoor unit signal transmission error due to wiring error 106
- Malfunction decision conditions 106
- Method of malfunction detection 106
- Remote controller display 106
- Service diagnosis 97 106
- Sibe04 302 troubleshooting 106
- Signal transmission error between indoor and outdoor units 106
- Supposed causes 106
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 106
- Troubleshooting 106
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 106
- A compressor overload is detected through compressor ol 107
- Check no 1 refer to p 25 107
- Check no refer to p 20 107
- Check no refer to p 21 107
- Check no refer to p 22 107
- Electronic expansion valve defective 107
- Four way valve malfunctioning 107
- If the compressor ol is activated twice the system will be shut down 107
- Malfunction decision conditions 107
- Method of malfunction detection 107
- Ol activation compressor overload 107
- Outdoor unit pcb defective 107
- Refrigerant shortage 107
- Remote controller display 107
- Service diagnosis 107
- Stop valve defective 107
- Supposed causes 107
- 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 107
- The operating temperature condition is not specified 107
- Troubleshooting 107
- Troubleshooting sibe04 302 107
- Water mixed in the local piping 107
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 108
- Clearing condition continuous run for about 5 minutes normal 108
- Compressor lock 108
- Compressor locked 108
- Malfunction decision conditions 108
- Method of malfunction detection 108
- Note if the model doesn t have spm replace the outdoor unit pcb 108
- Remote controller display 108
- Service diagnosis 99 108
- Sibe04 302 troubleshooting 108
- Supposed causes 108
- The system judges the compressor lock and cannot operation with position detection within 15 seconds after start up 108
- The system judges the compressor lock and stops due to over current 108
- The system will be shut down if the error occurs 16 times 108
- Troubleshooting 108
- An input over current is detected by checking the input current value being detected by ct with the compressor running 109
- Check no refer to p 23 109
- Check no refer to p 24 109
- Error detection due to outdoor unit pcb 109
- Input over current detection 109
- Malfunction decision conditions 109
- Method of malfunction detection 109
- Note if the model doesn t have spm replace the outdoor unit pcb 109
- Over current due to compressor failure 109
- Over current due to defective outdoor unit pcb 109
- Over current due to defective power transistor 109
- Over current due to short circuit 109
- Remote controller display 109
- Service diagnosis 109
- Supposed causes 109
- The following ct input with the compressor running continues for 2 seconds cooling above 11a heating above 13a 109
- Troubleshooting 109
- Troubleshooting sibe04 302 109
- Four way valve abnormality 110
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 111
- Check no 1 refer to p 25 111
- Check no refer to p 21 111
- Check no refer to p 22 111
- Service diagnosis 111
- Troubleshooting 111
- Troubleshooting sibe04 302 111
- Discharge pipe temperature control 112
- Check no 3 refer to p 26 113
- Clearing condition continuous run for about 5 minutes normal 113
- Compressor itself defective 113
- Compressor relay cable disconnected 113
- Ftk x s atk x s series only a compressor startup failure is detected by checking the compressor running condition through the position detection circuit 113
- Input voltage out of specification 113
- Malfunction decision conditions 113
- Method of malfunction detection 113
- Outdoor unit pcb defective 113
- Position sensor abnormality 113
- Remote controller display 113
- Service diagnosis 113
- Stop valve closed 113
- Supposed causes compressor relay cable disconnected 113
- The compressor fails to start in about 15 seconds after the compressor run command signal is sent 113
- The system will be shut down if the error occurs 16 times 113
- Troubleshooting 113
- Troubleshooting sibe04 302 113
- Ct or related abnormality 114
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 115
- Check no 2 refer to p 26 115
- Note if the model doesn t have spm replace the outdoor unit pcb 115
- Service diagnosis 115
- Troubleshooting 115
- Troubleshooting sibe04 302 115
- P4 j3 j6 h9 116
- Thermistor or related abnormality outdoor unit 116
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 117
- Check no refer to p 22 117
- P4 radiation fin thermistor j3 discharge pipe temperature thermistor j6 outdoor unit heat exchanger temperature thermistor h9 outdoor air temperature thermistor 117
- Service diagnosis 117
- Troubleshooting 117
- Troubleshooting sibe04 302 117
- Electrical box temperature rise 118
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 119
- Check no refer to p 22 119
- Check no refer to p 23 119
- Check no refer to p 24 119
- Service diagnosis 119
- Troubleshooting 119
- Troubleshooting sibe04 302 119
- Radiation fin temperature rise 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 22 121
- Check no refer to p 23 121
- Check no refer to p 24 121
- Service diagnosis 121
- Troubleshooting 121
- Troubleshooting sibe04 302 121
- Output over current detection 122
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 123
- Check no 3 refer to p 26 123
- Check no refer to p 23 123
- Check no refer to p 24 123
- Note if the model doesn t have spm replace the outdoor unit pcb 123
- Service diagnosis 123
- Troubleshooting 123
- Troubleshooting sibe04 302 123
- Insufficient gas 124
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 125
- Check no refer to p 20 125
- Check no refer to p 22 125
- Service diagnosis 125
- Troubleshooting 125
- Troubleshooting sibe04 302 125
- An abnormal voltage rise is detected by checking the specified over voltage detection circuit 126
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer the voltage is over 400v 126
- Clearing condition continuous run for about 60 minutes normal 126
- Malfunction decision conditions 126
- Method of malfunction detection 126
- Note if the model doesn t have spm replace the outdoor unit pcb 126
- Over voltage detection 126
- Over voltage detection circuit defective 126
- Pam control part s defective 126
- Remote controller display 126
- Service diagnosis 117 126
- Sibe04 302 troubleshooting 126
- Supply voltage not as specified 126
- Supposed causes 126
- The system will be shut down if the error occurs 5 times 126
- Troubleshooting 126
- High pressure control in cooling 127
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 128
- Check no refer to p 20 128
- Check no refer to p 22 128
- Check no refer to p 23 128
- Check no refer to p 24 128
- Service diagnosis 119 128
- Sibe04 302 troubleshooting 128
- Troubleshooting 128
- Electronic expansion valve check 129
- How to check 129
- Check no 130
- Four way valve performance check 130
- Service diagnosis 121 130
- Sibe04 302 check 130
- 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 131
- Thermistor resistance check 131
- Check no 132
- Installation condition check 132
- Service diagnosis 123 132
- Sibe04 302 check 132
- Check no 133
- Check sibe04 302 133
- Discharge pressure check 133
- Outdoor unit fan system check with ac motor 133
- Service diagnosis 133
- Check no 0 measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance 134
- Check no 1 134
- Check to see if the power supply waveform is a sine wave fig 134
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 134
- Fig fig 134
- Inverter units refrigerant system check 134
- Power supply waveforms check 134
- Service diagnosis 125 134
- Sibe04 302 check 134
- Before measuring operate the unit for several minutes then shut down the operation by force using the circuit breaker 135
- Capacitor voltage check 135
- Check no 3 135
- 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 135
- 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 135
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 135
- Note the charge section is applied with high voltage therefore exercise caution during measurement to prevent electric shock 135
- Power transistor check 135
- Since capacitor and are connected to power transistor and capacitor voltage can be measured at the power transistor and terminals 135
- Take measurements at the power transistor and terminals in the same way as described in section 1 set the multi tester to dc and voltage range before measurement 135
- Hall ic check 136
- Indoor unit 30 138
- Outdoor unit 52 138
- Part 7 part 7 part 7 part 7 removal procedure removal procedure removal procedure removal procedure 138
- Part 7 removal procedure 138
- Indoor unit 139
- Removal of air filter 139
- When restoring the air filter make sure that the projection parts on the panel are in the guide groove and then shut the panel 141
- Removal of front grille 142
- The front grille can be removed in a manner to pull out the upper part forward and lift up the lower part 144
- When restoring the grille make sure whether each hook is set as it was 144
- Removal of horizontal blade and vertical blade 145
- Removal of switch box pc board and swing motor 147
- Remove a screw on the switch box 148
- Remove a screw on the terminal strip 148
- The switch box can be removed instead of disengaging the terminal strip 148
- A hook is provided on the behind 149
- Pull up the switch box forward to remove 149
- Disengage the four knobs on the back of the display pcb 151
- Display pcb 151
- Removal of heat exchanger 153
- Install of drain plug 156
- Procedure warning be sure to wait 10 minutes or more after turning off all power supplies before disassembling work 157
- Removal of fan rotor and fan motor 157
- Remove heat exchanger 157
- To remove right side panel remove three screws 157
- Disengage hook 158
- Loosen the hexagon head set screw on the fan rotor 158
- Remove a screw on the left side panel 159
- Remove the motor and fan rotor 159
- Disengage a hook from the backward 160
- 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 160
- Outdoor unit 161
- Removal of external casing 161
- Sectional view at the front 163
- The front plate and the left side plate can be removed when the one fixed screw is removed 163
- Removal of bell mouth and left side plate 164
- Removal of pcb and electrical box 165
- Disconnect the two connectors of the reactor 166
- Disconnect the wire harness 166
- Remove the four screws fixing the pcb 166
- Disconnect the three wires from the pcb 167
- The pcb has eight hooks 167
- Undo the eight hooks and the pcb can be disengaged 167
- Remove the electrical box 168
- Remove the two screws fixing the electrical box 168
- The pcb can completely be released 168
- Lift and remove the electrical box 169
- Remove the molded interconnect device mid 169
- Remove the one screw fixing the mid 169
- Slide the mid upward and release 170
- Removal of propeller fan and fan motor 171
- Remove the fan motor 172
- Removal of compressor noise absorption pad 173
- Procedure warning be sure to turn off all power supplies at least 10 min before disassembling work 175
- Pull the partition plate upward to remove 175
- Removal of partition plate and reactor 175
- Remove the two screws fixing the partition plate 175
- Slide the reactor assembly this side and release 177
- Removal of four way valve and motor valve 178
- Removal of compressor 181
- Remove the four way valve and the motor valve also so as not to be burnt out 182
- Remove the nut by an open end wrench 182
- The mounting nut for the compressor is only one piece 182
- Explanation 76 1 jumper settings 77 184
- Others 76 184
- Part 8 others 184
- Explanation 185
- Others 185
- Test run from the remote controller 185
- Cut the jumper j4 186
- Cut the jumper ja on pcb 186
- How to set the different addresses 186
- Jumper setting 186
- Jumper settings 186
- Pcb in the indoor unit 186
- Remove the front panel 186
- Remove the sensor parts cover 2 screws then remove the electric parts box 1 screw 186
- Slide the metallic cover to remove it 4 claws on the electric parts box 186
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 186
- When two units are installed in one room 186
- Wireless remote controller 186
- Adjusting the angle of the intelligent eye sensor 187
- Part 9 appendix 188
- Ftks25 35bvmb atks25 35bvmb ftk25 35bvmb atk25 35bvmb fts20 25 35bvmb ftxs25 35bvmb atxs25 35bvmb ftx25 35bvmb atx25 35bvmb ftys20 25 35bvmb 189
- Indoor units 189
- Piping diagrams 189
- Appendix 181 190
- Outdoor units 190
- Rk25bvmb ark25bvmb rs20 25bvmb 190
- Rks25 35bvmb arks25 35bvmb rk35bvmb ark35bvmb rs35bvmb 190
- Sibe04 302 piping diagrams 190
- Appendix 191
- Piping diagrams sibe04 302 191
- Rx25bvmb arx25bvmb rys20 25bvmb 191
- Rxs25 35bvmb arxs25 35bvmb rx35bvmb arx35bvmb rys35bvbm 191
- Caution 192
- Ftks25 35bvmb atks25 35bvmb ftk25 35bvmb atk25 35bvmb ftxs25 35bvmb atxs25 35bvmb ftx25 35bvmb atx25 35bvmb 192
- Fts20 25 35bvmb ftys20 25 35bvmb 192
- Indoor units 192
- Wiring diagrams 192
- Appendix 193
- Outdoor units 193
- Rk25 35bvmb ark25 35bvmb rs20 25 35bvmb 193
- Rks25 35bvmb arks25 35bvmb 193
- Wiring diagrams sibe04 302 193
- Appendix 185 194
- Fu2 20a 194
- Indoor 194
- Outdoor 194
- Rx25 35bvmb arx25 35bvmb ry20 25 35bvmb 194
- Rxs25 35bvmb arxs25 35bvmb 194
- Sibe04 302 wiring diagrams 194
- Ylw ylw 194
- Index index index index 196
- Numerics 196
- Drawings flow charts 200
- Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 200
- For further improvement specifications or designs are subject to change without prior notice 201
- Printed in japan 06 2003 ak cos 201
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