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Daikin FDKS25CVMB [179/230] How to check
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Check SiBE12-519
170 Service Diagnosis
5. Check
5.1 How to Check
5.1.1 Fan Motor Connector Output Check
Check No.01 1. Check connector connection.
2. Check motor power supply voltage output (pins 4-7).
3. Check motor control voltage (pins 4-3).
4. Check rotation command voltage output (pins 4-2).
5. Check rotation pulse input (pins 4-1).
7
6
5
4
3
2
1
Motor power supply voltage
Unused
Unused
P.0V (reference potential)
Motor control voltage (15 VDC)
Rotation command voltage (1~ 6 VDC)
Rotation pulse input
S1
(R3199)
Содержание
- Applied models 1
- D series 1
- Inverter multi for 2 rooms 1
- Sibe 12 519 1
- Cooling only outdoor unit indoor unit 2
- Heat pump outdoor unit indoor unit 2
- Inverter multi for 2 rooms d series 2
- Control specification 3 3
- Cooling only 3
- Cooling only 2 heat pump 3
- Function of main structural parts 9 3
- Heat pump 4 3
- Introduction v 3
- Main functions 4 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 1 3
- Part 4 function and control 3 3
- Printed circuit board connector wiring diagram 2 3
- Caution for diagnosis 28 2 problem symptoms and measures 30 3 service check function 31 4 troubleshooting 34 4
- Part 5 system configuration 9 4
- Part 6 service diagnosis 27 4
- System configuration 0 2 instruction 1 4
- Check 70 5
- Drawings flow charts v 5
- Index i 5
- Others 04 5
- Outdoor unit 80 5
- Part 7 removal procedure 79 5
- Part 8 others 03 5
- Part 9 appendix 07 5
- Piping diagrams 08 5
- Wiring diagrams 11 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
- Cooling only 2 heat pump 10
- Part 1 list of functions 10
- Cooling only 11
- Cooling only sibe12 519 11
- Holding functions no functions 11
- List of functions 11
- Holding functions no functions 12
- List of functions 3 12
- Sibe12 519 cooling only 12
- Heat pump 13
- Heat pump sibe12 519 13
- Holding functions no functions 13
- List of functions 13
- Holding functions no functions 14
- List of functions 5 14
- Sibe12 519 heat pump 14
- Cooling only 16
- Heat pump 4 16
- Part 2 specifications 16
- Cooling only 17
- Cooling only sibe12 519 17
- Indoor units 17
- Specifications 17
- Wall mounted type 50hz 230v 17
- Hz 230v 18
- Sibe12 519 cooling only 18
- Specifications 9 18
- Cooling only sibe12 519 19
- Duct connected type 50hz 230v 19
- Hz 230v 19
- Specifications 19
- Floor ceiling suspended dual type 50hz 230v 20
- Sibe12 519 cooling only 20
- Specifications 11 20
- Cooling only sibe12 519 21
- Hz 230v 21
- Outdoor units 21
- Specifications 21
- Combination capacity 22
- Cooling 230v 22
- Sibe12 519 cooling only 22
- Specifications 13 22
- Wall mounted type c series 22
- Wall mounted type d series 22
- Heat pump 23
- Heat pump sibe12 519 23
- Indoor units 23
- Specifications 23
- Wall mounted type 50hz 230v 23
- Hz 230v 24
- Sibe12 519 heat pump 24
- Specifications 15 24
- Duct connected type 50hz 230v 25
- Heat pump sibe12 519 25
- Hz 230v 25
- Specifications 25
- Floor ceiling suspended dual type 50hz 230v 26
- Sibe12 519 heat pump 26
- Specifications 17 26
- Heat pump sibe12 519 27
- Hz 230v 27
- Outdoor units 27
- Silent mode 27
- Sound pressure 27
- Specifications 27
- Combination capacity 28
- Heating 230v 28
- Sibe12 519 heat pump 28
- Specifications 19 28
- Wall mounted type c series cooling 230v 28
- Wall mounted type d series cooling 230v 28
- Part 3 printed circuit board connector wiring diagram 30
- Printed circuit board connector wiring diagram 2 30
- Ftk x s20 35d 31
- Printed circuit board connector wiring diagram 31
- Wall mounted type 31
- Pcb 2 signal receiver pcb pcb 3 display pcb 32
- Pcb 4 intelligent eye sensor pcb 32
- Pcb detail pcb 1 control pcb 32
- Printed circuit board connector wiring diagram 23 32
- Sibe12 519 printed circuit board connector wiring diagram 32
- Ftk x s20 35c 33
- Printed circuit board connector wiring diagram 25 34
- Sibe12 519 printed circuit board connector wiring diagram 34
- Pcb detail 35
- Duct connected type 36
- Pcb detail pcb 2 display pcb 37
- Floor ceiling suspended dual type 38
- Outdoor unit 40
- Pcb detail pcb 2 control pcb 41
- Control specification 3 42
- Function of main structural parts 9 42
- Main functions 4 42
- Part 4 function and control 42
- Additional control parameters 43
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 43
- Forced cooling operation 43
- Frequency principle 43
- Frequency restrictions 43
- Initial settings 43
- 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 43
- 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 43
- Main functions 43
- Note see the list of functions for the functions applicable to different models 43
- The difference between the room temperature and the set temperature 43
- The load condition of the operating indoor unit 43
- The target frequency is adapted by additional parameters in the following cases 43
- 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 44
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 44
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor air temperature is 2 c 44
- Forced cooling operation for more information refer to forced operation mode on page 44
- Frequency limits the following table shows the functions that define the minimum and maximum frequency 44
- Inverter features the inverter provides the following features 44
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature 44
- The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load 44
- Power airflow dual flaps wide angle louvers and auto swing 45
- 25 35kw class 670 880 rpm during powerful operation 720 930 rpm 46
- Automatic air flow control for cooling 46
- Automatic air flow control for heating 46
- 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 46
- Fan speed control for indoor units 46
- For more information about hall ic refer to the troubleshooting for fan motor on page 138 46
- Function and control 37 46
- Ll sl silent l ml m mh h hh powerful 46
- Note 1 during powerful operation fan rotates at h tap 50 90 rpm 2 fan stops during defrost operation 46
- Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 46
- Sibe12 519 main functions 46
- Step cooling heating dry mode lll 46
- The following drawing explains the principle for fan speed control for heating 46
- The following drawing explains the principle of fan speed control for cooling 46
- Within this range the airflow rate is automatically controlled when the fan setting button is set to automatic 46
- 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 47
- Programme dry function 47
- 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 47
- Automatic operation 48
- Cooling dry 49
- Function and control 49
- Heating 49
- Main functions sibe12 519 49
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 49
- The operation turns on in any zones except a 49
- The system resumes from defrost control in any zones except a 49
- The temperature difference is above the zone c after being in the zone a 49
- The temperature difference is in the zone a 49
- Thermostat control 49
- Thermostat control is based on the difference between the room temperature and the setpoint 49
- Thermostat off condition 49
- Thermostat on condition 49
- Night set mode 50
- Econo mode 51
- 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 52
- Function and control 43 52
- In case of fan mode the fan speed reduces by 50 rpm 52
- Intelligent eye 52
- Processing 1 detection method by intelligent eye 52
- Sibe12 519 main functions 52
- The motions for example in cooling 52
- 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 52
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output 52
- 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 52
- Home leave operation 54
- 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 in case of ftk x s20 35d 55
- Ex powerful operation in cooling mode 55
- Inverter powerful operation 55
- 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 55
- Air purifying filter 56
- Hot start function 56
- On off button on indoor unit 56
- Other functions 56
- Photocatalytic deodorizing filter 56
- Signal receiving sign 56
- Titanium apatite photocatalytic air purifying filter 56
- Air purifying filter with photocatalytic deodorizing function 57
- Auto restart function 57
- Mold proof air filter 57
- Self diagnosis digital display 57
- Cooling only model 58
- Function and control 49 58
- Function of main structural parts 58
- Heat pump model 58
- Main structural parts 58
- Sibe12 519 function of main structural parts 58
- Function of thermistor 59
- Heat pump model 59
- Cooling only model 61
- Control specification 62
- Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting 62
- For cooling only model there are following models stop and cooling including drying 62
- For the rooms set with different mode select stand by mode operation lamp flashes 62
- Mode hierarchy 62
- Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation determine operating mode judge the operating mode command set by each room in accordance with the instructing procedure and determine the operating mode of the system the following procedure will be taken as the modes conflict with each other 62
- 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 62
- The system will follow the mode determined first first push first set 62
- Frequency control 63
- Command frequency will be determined in the following order of priority 1 limiting frequency by drooping function 64
- D signal 1 p control calculate a total of the 64
- D signal and is used for frequency command 64
- D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the 64
- D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 64
- D value is large increase the frequency 64
- D value is small lower the frequency when the 64
- D value obtaining the fixed 64
- D value of each room and a total value of q 64
- D value when the 64
- Determine lower limit frequency 64
- Determine prohibited frequency 64
- Determine upper limit frequency 64
- For cooling only model 1 determine command frequency 64
- I control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the 64
- Indoor frequency command 64
- Input current discharge pipes freeze prevention dew prevention fin thermistor temperature 1 indoor frequency command 64
- Pi control determine frequency up down by 64
- Q of the operating room the room in which the thermostat is set to on q value indoor unit output determined from indoor unit volume air flow rate and other factors 64
- Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep 64
- Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions compressor protection input current discharge pipes freeze prevention dew prevention fin thermistor temperature 64
- Th off thermostat off indoor unit capacity s value the capacity of the indoor unit is a s value and is used for frequency command 64
- There is a certain prohibited frequency such as a power supply frequency 64
- When starting the compressor or when conditions are varied due to the change of the operating room the frequency must be initialized according to the total of a maximum 64
- 3 minutes stand by 66
- Compressor protection function 66
- Controls at mode changing start up 66
- Four way valve operation compensation 66
- Four way valve switching 66
- Preheating operation 66
- Discharge pipe control 67
- Input current control 67
- Freeze up protection control 68
- Heating peak cut control 68
- Fan control 69
- Liquid compression protection function 2 69
- Defrost control 70
- 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 30 minutes of accumulated fine 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 12 c 70
- Function and control 61 70
- 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 70
- Sibe12 519 control specification 70
- Electronic expansion valve control 71
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 72
- Function and control 63 72
- Sibe12 519 control specification 72
- Disconnection of the discharge pipe thermistor 73
- Fully closing with power on 73
- Gas pipe isothermal control during cooling 73
- Opening limit 73
- Pressure equalization control 73
- Sc control 73
- Starting operation changing operating room control 73
- Control when frequency is changed 74
- High temperature of the discharge pipe 74
- Oil recovery function 74
- Target discharge pipe temperature control 74
- Detection of overload and over current 75
- Insufficient gas control 75
- Malfunctions 75
- Sensor malfunction detection 75
- Detail forced cooling 76
- During cooling if the heat exchanger temperature in the operation stopped room becomes below the specified temperature for the specified time open the electronic expansion valve in the operation stopped room as specified and carry out the fully closed operation after this if freezing abnormality occurs more than specified time the system shall be down as the system abnormality 76
- Forced operation mode 76
- Outline forced operating mode includes only forced cooling 76
- Preventing indoor freezing 76
- Additional function 77
- Maximum power input limitation setting 77
- Powerful operation mode 77
- Voltage detection function 77
- Part 5 system configuration 78
- System configuration 0 2 instruction 1 78
- System configuration 79
- Illustrations are for wall mounted type ftxs20 25 35c as representative 80
- Instruction 80
- Manual contents and reference page 80
- Caution 81
- Safety precautions 81
- Warning 81
- A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbour 82
- Consider nuisance to your neighbours from noises 82
- Electrical work 82
- For installation choose a place as described below 82
- Installation site 82
- System relocation 82
- Indoor unit 83
- Names of parts 83
- Indoor unit 84
- Outdoor unit 84
- Arc433a50 4 85
- On off 85
- Remote controller 85
- Indoor unit 86
- Names of parts 86
- On off 86
- Indoor unit 87
- Outdoor unit 87
- Arc433a1 a2 88
- Remote controller 88
- Indoor unit 89
- Names of parts 89
- Indoor unit 90
- Outdoor unit 90
- Arc433a7 a8 91
- Remote controller 91
- Caution 92
- Indoor unit 92
- Names of parts 92
- Opening the front grille 92
- Indoor unit 93
- Outdoor unit 93
- Arc433a5 a6 94
- Remote controller 94
- Preparation before operation 95
- To set the batteries 95
- Attention 96
- Choose a place from where the sig nals reach the unit 96
- Fix the holder to a wall a pillar etc with the screws supplied with the holder 96
- Place the remote controller in the remote controller holder 96
- Preparation before operation 96
- To fix the remote controller holder on the wall 96
- To operate the remote controller 96
- 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 97
- If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 97
- Instruction sibe12 519 97
- Operation outside this humidity or temperature range may cause a safety device to disable the system 97
- Please note 97
- Press clock button 97
- Sensor 97
- Silent 97
- System configuration 97
- The air conditioner always consumes 15 35 watts of electricity even while it is not operating 97
- Tips for saving energy 97
- To set the clock 97
- Turn the breaker on 97
- Use the air conditioner in the following conditions 97
- Auto dry cool heat fan operation 98
- To change the temperature setting 98
- To start operation 98
- To stop operation 98
- Press fan setting button 99
- To change the air flow direction 99
- To change the air flow rate setting 99
- Adjusting the air flow direction 100
- Press swing button 100
- To adjust the horizontal blades flaps 100
- To adjust the vertical blades louvers 100
- When the flaps have reached the desired position press swing button once more 100
- Always use a remote controller to adjust the flaps angle if you attempt to move it forcibly with hand when it is swinging the mechanism may be broken 101
- Cool dry the flap will go up heat the flap will go down 101
- In dry mode or cool mode 101
- In fan mode 101
- In heat mode 101
- Notes on comfort airflow operation 101
- Notes on flaps and louvers angles 101
- Press comfort airflow button 101
- Press comfort airflow button again 101
- To cancel comfort airflow operation 101
- To start comfort airflow operation 101
- Adjusting the air flow direction 102
- Press swing button 102
- To adjust the horizontal blades flaps 102
- When the flaps have reached the desired position press swing button once more 102
- Attention 103
- Notes on flaps and louvres angles 103
- Swing button 103
- To adjust the vertical blades louvres 103
- Adjusting the air flow direction 104
- Press swing button 104
- To adjust the horizontal blade flap 104
- When the flaps have reached the desired position press swing button once more 104
- Attention 105
- Notes on flap and louvres angles 105
- To adjust the vertical blades louvres 105
- Powerful operation 106
- To cancel powerful operation 106
- To start powerful operation 106
- Outdoor unit silent operation 107
- To cancel outdoor unit silent operation 107
- To start outdoor unit silent operation 107
- Econo operation 108
- To cancel econo opera tion 108
- To start econo operation 108
- Before using home leave operation 109
- Home leave operation 109
- To cancel home leave operation 109
- To set the temperature and air flow rate for home leave operation 109
- To start home leave operation 109
- When using home leave operation for the first time please set the temperature and air flow rate for home leave operation 109
- Use as a favorite mode 110
- Use as an energy saving mode 110
- Useful in these cases 110
- What s the home leave operation 110
- Intelligent eye operation 111
- Press sensor button 111
- Press sensor button again 111
- To cancel the intelligent eye operation 111
- To start intelligent eye operation 111
- Caution 112
- Intelligent eye is useful for energy saving 112
- Intelligent eye operation 112
- Notes on intelligent eye 112
- Intelligent eye operation 113
- Caution 114
- Intelligent eye is useful for energy saving 114
- Notes on intelligent eye 114
- To adjust the angle of the intelligent eye sensor 114
- Timer operation 115
- To cancel the off timer operation 115
- To use off timer opera tion 115
- Attention 116
- Press cancel button 116
- Press on timer button 116
- Press on timer button again 116
- Press timer setting button until the time setting reaches the point you like 116
- To cancel on timer operation 116
- To combine on timer and off timer 116
- To use on timer operation 116
- Night quiet mode available only for cooling operation 117
- Note for multi system 117
- Outdoor unit silent operation 117
- Selecting the operation mode 117
- Maximum power input limitation 118
- Operation mode priority 118
- Priority room setting 118
- Priority when powerful operation is used 118
- Priority when using outdoor unit silent operation 118
- Care and cleaning 119
- Caution 119
- Front panel 119
- Indoor unit outdoor unit and remote controller 119
- Air filter 120
- Filters 120
- Maintenance 120
- Replacement 120
- Titanium apatite photocatalytic air purifying filte 120
- Before a long idle period 121
- Clean the air filters and set them again 121
- Operate the fan only for several hours on a fine day to dry out the inside 121
- Take out batteries from the remote controller 121
- Turn off the breaker for the room air conditioner 121
- Attach the front grille 122
- Before cleaning be sure to stop the operation and turn the breaker off 122
- Care and cleaning 122
- Caution 122
- Clean the front grille 122
- Front grille 122
- Indoor unit outdoor unit and remote controller 122
- Open the front grille 122
- Remove the front grille 122
- Wipe them with dry soft cloth 122
- Air filter 123
- Air purifying filter with photocatalytic deodorizing function gray 123
- Filters 123
- Maintenance 123
- Replacement 123
- After operation stops turn off the breaker for the room air conditioner 124
- Air purifying filter with photocatalytic deodorizing function with frame 1 set 124
- Air purifying filter with photocatalytic deodorizing function without frame 1 set 124
- Before a long idle period 124
- Clean the air filters and set them again 124
- Dispose of old filters as burnable waste 124
- Operate the fan only for several hours on a fine day to dry out the inside 124
- Press mode button and select fan operation 124
- Press on off button and start operation 124
- Take out batteries from the remote controller 124
- Before cleaning be sure to stop the operation and turn the breaker off 125
- Care and cleaning 125
- Caution 125
- Cleaning the air filter 125
- Fdk x s25 35c 125
- Only a qualified service person is allowed to perform maintenance 125
- Removing the air filter 125
- Replacing the air filter 125
- Before a long idle period 126
- Caution 126
- Clean the air filters and set them again 126
- Cleaning the drain pan 126
- Operate the fan only for several hours on a fine day to dry out the inside 126
- Take out batteries from the remote controller 126
- Turn off the breaker for the room air conditioner 126
- Before cleaning be sure to stop the operation and turn the breaker off 127
- Care and cleaning 127
- Caution 127
- Clean the front grille 127
- Close the front grille 127
- Front grille 127
- Indoor unit outdoor unit and remote controller 127
- Open the front grille 127
- Wipe them with dry soft cloth 127
- Air filter 128
- Air purifying filter green 128
- Clean or replace each filter 128
- Detach the filter element and attach a new one 128
- Dry the photocatalytic deodorizing filter in the sun 128
- Filters 128
- Maintenance 128
- Open the front grille 2 pull out the air filters 128
- Photocatalytic deodorizing filter gray 128
- Replace approximately once every 3 months 128
- Replacement 128
- See below 128
- Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front grille 128
- Take off the air purifying filter photocatalytic deodorizing filter 128
- Wash the air filters with water or clean them with vacuum cleaner 128
- 1 the paper material is torn or broken during cleaning 129
- Air purifying filter with frame 129
- Air purifying filter without frame 129
- Before a long idle period 129
- Clean the air filters and set them again 129
- Dispose of old air filters as non burnable waste and 129
- Filters as burnable waste 129
- Operate the fan only for several hours on a fine day to dry out the inside 129
- Photocatalytic deodorizing filter with frame 129
- Photocatalytic deodorizing filter without frame 129
- Press mode button and select fan operation 129
- Press on off button and start operation 129
- Take out batteries from the remote controller 129
- Turn off the breaker for the room air conditioner 129
- When a multi outdoor unit is connected make sure the heating operation is not used at the other room before you use the fan operation 129
- Case explanation 130
- These cases are not troubles 130
- Trouble shooting 130
- Troubleshooting 130
- Case check 131
- Check again 131
- Call the service shop immediately 132
- Disposal requirements 132
- The power cord is abnormally hot or damaged an abnormal sound is heard during operation the safety breaker a fuse or the earth leakage breaker cuts off the operation frequently a switch or a button often fails to work properly there is a burning smell water leaks from the indoor unit 132
- Turn the breaker off and call the service shop 132
- Warning 132
- We recommend periodical maintenance 132
- Fault diagnosis 133
- Fault diagnosis by remote controller 133
- Indication flashes on the temperature display section 133
- Press the timer cancel button repeatedly until a continuous beep is produced 133
- When the timer cancel button is held down for 5 seconds 133
- Sibe12 519 instruction 134
- System configuration 125 134
- Caution for diagnosis 28 2 problem symptoms and measures 30 3 service check function 31 4 troubleshooting 34 136
- Check 70 136
- Part 6 service diagnosis 136
- Caution for diagnosis 137
- Problem symptoms and measures 139
- Check method 1 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 140
- In the arc433a series remote controller the temperature display sections on the main unit indicate corresponding codes 140
- 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 140
- Press the timer cancel button repeatedly until a continuous beep is produced 140
- Service check function 140
- The code indication changes in the sequence shown below and notifies with a long beep 140
- Displayed only when system down occurs 143
- Error codes and description 143
- Troubleshooting 143
- Indoor unit pcb abnormality 144
- Freeze up protection control or high pressure control 145
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 146
- Check no 6 refer to p 73 146
- Service diagnosis 137 146
- Sibe12 519 troubleshooting 146
- Troubleshooting 146
- Ac motor 147
- Check no 6 refer to p 78 147
- Detection error due to faulty control pcb 147
- Fan motor or related abnormality 147
- Malfunction decision conditions 147
- Method of malfunction detection 147
- Operation halt due to breaking of the fan motor lead wires 147
- Operation halt due to breaking of wire inside the fan motor 147
- Operation halt due to faulty capacitor of the fan motor 147
- Operation halt due to short circuit inside the fan motor winding 147
- Remote controller display 147
- Supposed causes 147
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 147
- Troubleshooting 147
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 147
- Dc motor 148
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 149
- Check no 1 refer to p 70 149
- Service diagnosis 149
- Troubleshooting 149
- Troubleshooting sibe12 519 149
- Thermistor or related abnormality indoor unit 150
- Freeze up protection control 151
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 152
- Check no 4 refer to p 71 152
- Check no 6 refer to p 73 152
- Service diagnosis 143 152
- Sibe12 519 troubleshooting 152
- Troubleshooting 152
- A compressor overload is detected through compressor ol 153
- Check no 1 refer to p 76 153
- Check no 4 refer to p 71 153
- Check no 5 refer to p 72 153
- Check no 6 refer to p 73 153
- Electronic expansion valve defective 153
- Four way valve malfunctioning 153
- If the compressor ol is activated twice the system will be shut down 153
- Malfunction decision conditions 153
- Method of malfunction detection 153
- Ol activation compressor overload 153
- Outdoor unit pcb defective 153
- Refrigerant shortage 153
- Remote controller display 153
- Service diagnosis 153
- Stop valve defective 153
- Supposed causes 153
- 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 153
- The operating temperature condition is not specified 153
- Troubleshooting 153
- Troubleshooting sibe12 519 153
- Water mixed in the local piping 153
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 154
- Clearing condition continuous run for about 5 minutes normal 154
- Compressor lock 154
- Compressor locked 154
- Malfunction decision conditions 154
- Method of malfunction detection 154
- Note if the model doesn t have spm replace the outdoor unit pcb 154
- Remote controller display 154
- Service diagnosis 145 154
- Sibe12 519 troubleshooting 154
- Supposed causes 154
- The position detection circuit detects a compressor frequency of below 5 hz for several tens of seconds 154
- The system will be shut down if the error occurs 16 times 154
- Troubleshooting 154
- Dc fan lock 155
- Input over current detection 156
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 157
- Check no 4 refer to p 77 157
- Check no 7 refer to p 74 157
- Check no 8 refer to p 75 157
- Note if the model doesn t have spm replace the outdoor unit pcb 157
- Service diagnosis 157
- Troubleshooting 157
- Troubleshooting sibe12 519 157
- Four way valve abnormality 158
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 159
- Check no 1 refer to p 76 159
- Check no 5 refer to p 72 159
- Check no 6 refer to p 73 159
- Service diagnosis 159
- Troubleshooting 159
- Troubleshooting sibe12 519 159
- Discharge pipe temperature control 160
- High pressure control in cooling 161
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 162
- Check no 4 refer to p 71 162
- Check no 6 refer to p 73 162
- Check no 7 refer to p 74 162
- Check no 9 refer to p 75 162
- Service diagnosis 153 162
- Sibe12 519 troubleshooting 162
- Troubleshooting 162
- A compressor startup failure is detected by checking the compressor running condition through the position detection circuit 163
- Check no 3 refer to p 77 163
- Clearing condition continuous run for about 5 minutes normal 163
- Compressor itself defective 163
- Compressor relay cable disconnected 163
- Input voltage out of specification 163
- Malfunction decision conditions 163
- Method of malfunction detection 163
- Outdoor unit pcb defective 163
- Position sensor abnormality 163
- Remote controller display 163
- Service diagnosis 163
- Stop valve closed 163
- Supposed causes 163
- The compressor is not running in about 15 seconds after the compressor run command signal is sent 163
- The system will be shut down if the error occurs 8 times 163
- Troubleshooting 163
- Troubleshooting sibe12 519 163
- Ct or related abnormality 164
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 165
- Check no 2 refer to p 76 165
- Note if the model doesn t have spm replace the outdoor unit pcb 165
- Service diagnosis 165
- Troubleshooting 165
- Troubleshooting sibe12 519 165
- P4 j3 j6 j8 j9 h9 166
- Thermistor or related abnormality outdoor unit 166
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 167
- Check no 6 refer to p 73 167
- Discharge pipe thermistor 167
- Gas pipe thermistor 167
- Liquid pipe thermistor 167
- Outdoor temperature thermistor 167
- Outdoor unit heat exchanger thermistor 167
- Radiation fin thermistor 167
- Service diagnosis 167
- Troubleshooting 167
- Troubleshooting sibe12 519 167
- Electrical box temperature rise 168
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 169
- Check no 6 refer to p 73 169
- Check no 7 refer to p 74 169
- Check no 9 refer to p 75 169
- Service diagnosis 169
- Troubleshooting 169
- Troubleshooting sibe12 519 169
- Radiation fin temperature rise 170
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 171
- Check no 6 refer to p 73 171
- Check no 7 refer to p 74 171
- Check no 9 refer to p 75 171
- Service diagnosis 171
- Troubleshooting 171
- Troubleshooting sibe12 519 171
- Output over current detection 172
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 173
- Check no 3 refer to p 77 173
- Check no 7 refer to p 74 173
- Check no 8 refer to p 75 173
- Note if the model doesn t have spm replace the outdoor unit pcb 173
- Service diagnosis 173
- Troubleshooting 173
- Troubleshooting sibe12 519 173
- Insufficient gas 174
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 175
- Check no 4 refer to p 71 175
- Check no 6 refer to p 73 175
- Service diagnosis 175
- Troubleshooting 175
- Troubleshooting sibe12 519 175
- An abnormal voltage rise is detected by checking the detection circuit or dc voltage detection circuit 176
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer or more than 430 v occurred the voltage detected by the dc voltage detection circuit 176
- Clearing condition continuous run for about 60 minutes normal 176
- Malfunction decision conditions 176
- Method of malfunction detection 176
- Note if the model doesn t have spm replace the outdoor unit pcb 176
- Over voltage detection 176
- Over voltage detector or dc voltage detection circuit defective 176
- Pam control part s defective 176
- Remote controller display 176
- Service diagnosis 167 176
- Sibe12 519 troubleshooting 176
- Supply voltage not as specified 176
- Supposed causes 176
- The system will be shut down if the error occurs 4 times 176
- Troubleshooting 176
- A wrong connection is detected by checking the combination of indoor and outdoor units on the microcomputer 177
- Anti icing function in other rooms unspecified voltage between indoor and outdoor units 177
- Malfunction decision conditions 177
- Method of malfunction detection 177
- Operation halt due to the anti icing function in other rooms 177
- Operation halt due to unspecified voltage between indoor and outdoor units 177
- Pcb wrongly connected 177
- Remote controller display 177
- Service diagnosis 177
- Supposed causes 177
- Troubleshooting 177
- Troubleshooting sibe12 519 177
- Wrong connections at the indoor unit 177
- Faulty indoor unit pcb 178
- Faulty outdoor unit pcb 178
- Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units the transmission wire 178
- Indoor unit outdoor unit signal transmission error due to wiring error 178
- Malfunction decision conditions 178
- Method of malfunction detection 178
- Outdoor unit pcb abnormality or signal transmission circuit abnormality 178
- Remote controller display 178
- Service diagnosis 169 178
- Sibe12 519 troubleshooting 178
- Supposed causes 178
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 178
- Troubleshooting 178
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal if the indoor unit cannot communicate with the outdoor unit for 15 seconds the system will be shut down 178
- Check no 1 1 check connector connection 2 check motor power supply voltage output pins 4 7 3 check motor control voltage pins 4 3 4 check rotation command voltage output pins 4 2 5 check rotation pulse input pins 4 1 179
- Fan motor connector output check 179
- How to check 179
- Check no 4 conduct the followings to check the electronic expansion valve ev 1 check to see if the ev connector is correctly inserted in the pcb compare the ev unit and the connector number 2 turn the power off and back on again and check to see if all the evs generate latching sound 3 if any of the evs does not generate latching noise in the above step 2 disconnect that connector and check the continuity using a tester check the continuity between pins 1 3 and 6 and between pins 2 4 and 5 if there is no conductivity between the pins the ev coil is faulty 4 if no ev generates latching sound in the above step 2 the outdoor unit pcb is faulty 5 if the continuity is confirmed in the above step 3 mount a good coil which generated latching sound in the ev unit that did not generate latching sound and check to see if that ev generates latching sound 180
- Electronic expansion valve check 180
- If latching sound is generated the outdoor unit pcb is faulty 180
- If latching sound is not generated the ev unit is faulty 180
- Note please note that the latching sound varies depending on the valve type 180
- Check no 5 181
- Check sibe12 519 181
- Four way valve performance check 181
- Service diagnosis 181
- Check no 6 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 182
- Thermistor resistance check 182
- Check no 7 183
- Check sibe12 519 183
- Installation condition check 183
- Service diagnosis 183
- Check no 8 184
- Check no 9 184
- Discharge pressure check 184
- Outdoor unit fan system check with dc motor 184
- Service diagnosis 175 184
- Sibe12 519 check 184
- Capacitor voltage check 185
- Check no 1 185
- Check no 2 before this checking be sure to check the main circuit for short circuit 185
- Check sibe12 519 185
- Checking the capacitor voltage 185
- Inverter units refrigerant system check 185
- Service diagnosis 185
- With the circuit breaker still on measure the voltage according to the drawing be careful never to touch any live parts 185
- Check no 3 186
- Check no 4 186
- Check the continuity with the tester reverse the pins and make sure there is continuity 186
- Checking the main circuit electrolytic capacitor 186
- Checking the power transistor 186
- For the uvw make measurements at the faston terminal on the pcb or the relay connector 186
- If unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 v using the tester 186
- If unavoidably necessary to touch a live part make sure there is no dc voltage using the tester 186
- Main circuit electrolytic capacitor check 186
- Never touch any live parts for at least 10 minutes after turning off the circuit breaker 186
- Power transistor check 186
- Hall ic check 187
- Turning speed pulse input on the outdoor unit pcb check 187
- Outdoor unit 80 188
- Part 7 removal procedure 188
- Outdoor unit 189
- Removal of the panels fan motor 189
- Pull the fan motor lead wire away 192
- Release the four claws and remove the electrical box cover 192
- Unscrew the washer fitted nut m10 of the propeller fan with a spanner 192
- Removal of the pcb 194
- Removal of the electrical box 199
- Lift the electrical box up 201
- Release the wire clamp from the back side of the electrical box 201
- Remove the electrical box 201
- Removal of the sound blanket 202
- Remove the sound blanket bottom 204
- Remove the sound blanket side inner a 204
- Remove the sound blanket side inner b 204
- Removal of the thermistor 205
- Removal of the four way valve 206
- Removal of the electronic expansion valve 208
- Removal of the compressor 209
- Others 04 212
- Part 8 others 212
- Others 213
- Test run from the remote controller 213
- Control pcb of the indoor unit 1 remove the electrical box 2 cut the address jumper ja on the control pcb 214
- How to set the different addresses 214
- Jumper setting 214
- Jumper settings 214
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 214
- When two units are installed in one room 214
- Wireless remote controller 1 slide the front cover and take it off 2 cut the address jumper j4 214
- Adjusting the angle of the intelligent eye sensor 215
- Part 9 appendix 216
- Piping diagrams 08 216
- Wiring diagrams 11 216
- Cross flow fan 217
- D033698d 217
- D049319 217
- Fan motor 217
- Field piping 6 4cut 217
- Field piping 9 5cut 217
- Ftks20cvmb 9 ftks25cvmb 9 8 ftks35cvmb 9 8 217
- Ftks20d 2 vmw l 9 ftks25d 2 vmw l 9 ftks35d 2 vmw l 9 ftxs20d 2 vmw l 9 ftxs25d 2 vmw l 9 ftxs35d 2 vmw l 9 217
- Ftxs20cvmb 9 ftxs25cvmb 9 8 ftxs35cvmb 9 8 217
- Heat exchanger 217
- Indoor unit 217
- Indoor units 217
- Piping diagrams 217
- Refrigerant flow cooling heating 217
- Thermistor on heat exch 217
- Wall mounted type 217
- Appendix 209 218
- Duct connected type 218
- Fdk x s25cvmb fdk x s35cvmb 218
- Flks25bvmb flks35bvmb flxs25bvmb flxs35bvmb 218
- Floor ceiling suspended dual type 218
- Sibe12 519 piping diagrams 218
- Accumulator 219
- Appendix 219
- Branch pipe 219
- Cooling 219
- Cut 9 cut 9 cut branch pipe 219
- D039394b 219
- Distributor 219
- Fan motor 219
- Field piping gas 219
- Field piping liquid 219
- Heating 219
- Mks40dvmb 219
- Muffler 219
- Mxs40dvmb 219
- Outdoor unit 219
- Outdoor units 219
- Piping diagrams sibe12 519 219
- Propeller fan 219
- Refrigerant flow 219
- Room a 6 cut 219
- Room a 9 cut 219
- Room b 6 cut 219
- Room b 9 cut 219
- Circuit 220
- Eye sensor intelligent 220
- Field wiring 220
- Fu c70 220
- H1p h3p 220
- H2p s1w 220
- Indoor 220
- Indoor units 220
- M1f m1s 220
- Note that operation will 220
- On again 220
- Outdoor 220
- Pcb1 pcb3 r1t r2t 220
- Pilot lamp fan motor swing motor printed circuit board thermistor connector operation switch terminal strip 220
- Protective earth 220
- Receiver signal 220
- Restart automatically if 220
- Running capacitor 220
- S1 s36 220
- S36 s35 220
- Terminal for centralized control 220
- The main power supply is turned off and then back 220
- Wall mounted type 220
- Wht red 220
- Wiring diagrams 220
- Duct connected type 221
- Fdk x s25cvmb fdk x s35cvmb 221
- Flk x s25bvmb flk x s35bvmb 221
- Floor ceiling suspended dual type 221
- Appendix 213 222
- Mks40dvmb 222
- Mxs40dvmb 222
- Outdoor units 222
- Pcb1 pcb2 222
- Sibe12 519 wiring diagrams 222
- Numerics 224
- Drawings flow charts 228
- Cautions on product corrosion 230
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