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Daikin FTXD50JV1B [48/164] Wet operation protection i securing of differential pressure and blown air temperature
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General Functions SiBE04-101
40 Main Function
1.19 Wet Operation Protection I (Securing of Differential Pressure and Blown Air
Temperature)
Outline To secure the reliability of the compressor (for dryness of suction refrigerant and differential pressure)
which is the primary purpose of the compressor, the lower limit of the output frequency is limited to two
stages under the condition of outside air temperature. This time, in addition to this purpose, this function is
adopted also for prevention of cold draught by securing the blown air temperature at the time of heating
operation by low-temperature out side air.
Processing 1. at the first step
During operation of compressors.
Outdoor temperature ≤ DOA1CG
If and are under the simultaneous condition with AND, the lower limit of frequency in this function
is set at FCG7.
Compressors stop.
Outdoor temperature ≥ DOA2CG
If and are under the simultaneous condition with OR, the lower limit of frequency at the first step
control is cancelled.
2. at the second step
During operation of compressors
Outdoor temperature ≤ DOA3CG
If and are under the simultaneous condition with AND, the lower limit of frequency in this function
is set at FCG8.
Compressors stop.
Outdoor temperature ≥ DOA4CG
If and are under the coordinate condition with OR, the lower limit of frequency at the second step
control is cancelled.
3. 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.
4. Actual constant
∗ DOA : Outdoor air temperature
CGC : Compressor guard for cooling
CGW : Compressor guard for heating
FCG : Frequency guard for compressor protection
(In cooling)
50 Class
60 Class
71 Class
(In heating)
50 Class
60 Class
71 Class
DOA1CGC 18˚C 18˚C 18˚C DOA1CGW 0˚C 0˚C 0˚C
DOA2CGC 19˚C 19˚C 19˚C DOA2CGW 2˚C 2˚C 2˚C
DOA3CGC 0˚C 0˚C 0˚C DOA3CGW -4˚C -4˚C -4˚C
DOA4CGC 1˚C 1˚C 1˚C DOA4CGW -2˚C -2˚C -2˚C
FCG7C 58 Hz 48 Hz 36 Hz FCG7W 42 Hz 36 Hz 32 Hz
FCG8C 62 Hz 52 Hz 38 Hz FCG7W 52 Hz 42 Hz 36 Hz
FCG8
The lower
frequency limit.
Cancelled FCG7 FCG7Cancelled
DOA3CG
DOA4CG
DOA1CG
DOA2CG
Outdoor temperature
(R1044)
SiBE04-101.book Page 40 Monday, October 15, 2001 3:08 PM
Содержание
- Inverter pair ftxd j flx j rxd j series 1
- Functions 2
- General functions 8 2
- Introduction v 2
- Part 1 list of function 2
- Part 2 specifications 2
- Part 3 printed circuit board connector wiring diagram 2
- Part 4 main function 7 2
- Printed circuit board connector wiring diagram and name 2
- Specifications 2
- Caution for diagnosis 2 3
- Checks 19 3
- Instruction 6 3
- Part 5 system configuration 5 3
- Part 6 service diagnosis 1 3
- Problem symptoms and measures 4 3 service check function 5 3
- Troubleshooting 7 3
- Drawings flow charts iii 4
- For rxd50 60 71j 30 4
- Index i 4
- Part 7 removal procedure 29 4
- Part 8 appendix 47 4
- Piping diagrams 48 4
- Wiring diagrams 50 4
- Introduction 5
- Safety cautions 5
- Warning 5
- Caution 6
- Cautions regarding products after repair 6
- Introduction sibe04 101 6
- Warning 6
- Caution 7
- Inspection after repair 7
- Sibe04 101 introduction 7
- Warning 7
- Caution 8
- Introduction sibe04 101 8
- Using icons 8
- Using icons list 8
- Functions 9
- List of functions 2 9
- Part 1 list of function 9
- Functions 10
- Functions sibe04 101 10
- List of function 10
- List of functions 10
- Part 2 specifications 11
- Specifications 11
- Specifications 12
- Specifications sibe04 101 12
- Wall mounted type 12
- Sibe04 101 book page 5 monday october 15 2001 3 08 pm 13
- Sibe04 101 specifications 13
- Specifications 5 13
- V 50hz 13
- Floor ceiling suspended dual type 14
- Specifications 14
- Specifications sibe04 101 14
- V 50hz 14
- Part 3 printed circuit board connector wiring diagram 15
- Printed circuit board connector wiring diagram and name 15
- Name of connectors for indoor unit 16
- Printed circuit board connector wiring diagram 16
- Printed circuit board connector wiring diagram and name 16
- Printed circuit board connector wiring diagram and name sibe04 101 16
- Control pcb detail pcb 1 17
- Ftxd50 60 71j series 17
- Match the numbers printed at the backside of the wireless remote controller and allocate them to each indoor unit 17
- Pcb is common for both wall mounted type and floor ceiling suspended dual type except for the connectors which are different in their mating plug 17
- Printed circuit board connector wiring diagram 9 17
- Sibe04 101 printed circuit board connector wiring diagram and name 17
- Control pcb pcb 1 19
- Flx50 60j series 19
- Power supply pcb pcb 2 19
- Display pcb detail pcb 3 20
- Signal receiver pcb detail pcb 4 20
- Name of connectors for outdoor unit 21
- Printed circuit board connector wiring diagram 13 21
- Sibe04 101 printed circuit board connector wiring diagram and name 21
- Control pcb 22
- Rxd50 60 71j series 22
- Filter pcb 23
- General functions 8 25
- Part 4 main function 25
- Frequency control 26
- Functions of thermistors 26
- General functions 26
- General functions sibe04 101 26
- Location of the thermistors 26
- Main function 26
- Main function 19 27
- Operating modes 27
- Overview 27
- Refer to pre heat operation on page 30 27
- Sibe04 101 general functions 27
- The following table shows the different control modes of the split inverter room air conditioners 27
- There are two operating modes normal operating mode forced operating mode 27
- Additional control parameters 28
- Drawing of inverter 28
- Frequency principle 28
- General functions sibe04 101 28
- Inverter principle 28
- Main control parameters 28
- Main function 28
- The compressor is frequency controlled during normal operation the target frequency is set by the following 2 parameters coming from the operating indoor unit the load condition of the operating indoor unit the difference between the room temperature and the set temperature 28
- The following drawing shows a schematic view of the inverter principle 28
- The target frequency is adapted by additional parameters in the following cases frequency restrictions initial settings forced cooling heating operation 28
- 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 28
- Conditions 29
- Defrost control 29
- Defrost control is set by the following conditions during heating more than 35 minutes after the compressor has started up when condition 1 or 2 in the table below are applicable 29
- Main function 21 29
- Principle 29
- Sibe04 101 general functions 29
- Start conditions 29
- The following table shows the different conditions on which defrost control is based 29
- When frost deposit on the outdoor heat exchanger has increased in heating operation change the operation from heating cycle to cooling cycle for defrosting 29
- Compressor operation frequency 30
- Defrost control is ended by the conditions as follows when the maximum time elapses 30
- Evpulse 30
- General functions sibe04 101 30
- Main function 30
- Stop conditions 30
- Time chart 30
- Way valve cool 30
- A way to enter the test operation mode by a remote controller 1 set on the desirous mode and push on off button operation on 2 press the center of the temperature setting button and the mode button at the same time then a left figure of the liquid crystal temperature s display number starts to blink 3 moreover push mode button twice if the liquid crystal display becomes the test operation mode will startup under the mode displayed in a liquid crystal 31
- Forced operation mode 31
- J type 31
- Main function 23 31
- Operation by the operation buttons provided at the unit or the remote controller 31
- Operation by the switch on the pcb of the outdoor unit 31
- Sibe04 101 general functions 31
- Flap control 32
- Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room this function is effective for starting the air conditioner 33
- Although the liquid crystal display of the five step directions of the air flow is common for the modes of cooling dry heating as illustrated above in fact the range of the swing angle is slightly different in every operation mode the position a user set will be selected among the five positions calculated through the preliminary and evenly divided into four partitions which were taken from the upper and lower flap angle s range limits of each mode when auto swing is chosen the flap swings in the swing range which meets the operation mode selected 33
- Details of the action 33
- Fan mode is available for the models of cooling only 33
- It can be commanded for j type by means of a user setting to select either any one desired position among the five step directions of air flow adjusted on a remote controller or auto swing 33
- Main function 25 33
- Outline of 3 d airflow 33
- Sibe04 101 general functions 33
- When the horizontal swing and vertical swing are both set to auto mode in j type the airflow become 3 d airflow and the horizontal swing and vertical swing motions are alternated the order of swing motion is such that it turns counterclockwise starting from the right upper point as viewed to the front side of the indoor unit 33
- Details of the action 34
- Floor ceiling suspended dual type 34
- General functions sibe04 101 34
- Main function 34
- Swing angle range 34
- Automatic air flow control for cooling 35
- Automatic air flow control for heating 35
- Control mode 35
- Fan speed control for indoor units 35
- Flx 50class 400 980 1060 rpm 60class 400 1060 1140 rpm 35
- For powerful operation 35
- Hh powerful 35
- Lll heating thermostat off ftxd 50class 750 1000 1080 rpm 60class 750 1040 1120 rpm 71class 750 1040 1120 rpm 35
- Main function 27 35
- Note fan stops during defrost operation 35
- Note when there is no operation and the night set mode turns on the step is low refer to night set mode on page 31 35
- Phase control and fan speed control contains 8 steps lll ll l ml m mh h and hh 35
- Phase steps 35
- Refer to automatic airflow control on page 27 35
- Sibe04 101 general functions 35
- Step cooling heating dry mode 35
- The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature 35
- The following drawing explains the principle for fan speed control for heating 35
- The following drawing explains the principle of fan speed control for cooling 35
- Within this range the airflow is automatically controlled when the airflow adjusting button is set to automatic 35
- Cooling operation the fan tap is set as follows 36
- Dc motor is adopted for the outdoor fan the rotating speed is controlled depending on the condition in outdoor unit silent operation the rotating speed is changed further 36
- Details of the action 36
- Fan speed control for outdoor units 36
- General functions sibe04 101 36
- Heating operation 36
- Main function 36
- Outline 36
- Details of the action 37
- Main function 29 37
- Outdoor unit silent operation 37
- Outline 37
- Sibe04 101 general functions 37
- 1 decision of the dry setting temperature when entering the following dry mode stop an operation will start with dry mode except dry changing to dry mode thermostat on off point is decided in accordance with the following conditions 38
- 4 c the compressor is warmed up by passing a single phase u v phase current through the compressor motor to speed up the start the power consumption is 50 60w 38
- C room temp 24 c room temp at the entering room temp 1 c at the entering 38
- C room temp room temp at the entering room temp 2 c at the entering 38
- Dry mode 38
- During defrosting or when the thermostat is on in heating mode if the indoor heat exchanger temperature is 29 c restrict the fan rotating speed to l tap and under to prevent the cold draft 38
- Frequency command the frequency command is decided based on a room temperature zone the room temperature zone is decided as follows 38
- General functions 38
- General functions sibe04 101 38
- Hot start function 38
- Main function 38
- Pre heat operation 38
- Room temp 18 c 18 c 17 c 38
- Room temp condition at entering dry set temp thermostat on thermostat off temp 38
- The dry mode removes humidity while maintaining the room temperature the temperature and fan cannot be regulated during dry mode 38
- When the equipment has stopped and 38
- Main function 31 39
- Night set mode 39
- One hour after the off timer is set the outdoor unit sets the upper limit of the operation frequency at the value close to the rated frequency to reduce the outdoor operating noise 39
- Required fan speed fan speed changes the rotation speed every time when a thermostat switches over on and off when the thermostat becomes off fan continues to operate maximum 10 minutes with low speed so as to prevent dew condensation on the inside of the indoor unit and then stops 39
- Sibe04 101 general functions 39
- The frequency command for every zone is stated below please note that an operation will not carry out in the commanded frequency sometimes in case a protection control like a freeze protection etc will be actuated 39
- The night set mode is automatically activated when the off timer is set the set temperature changes as time goes by the operation frequency is decreased and the operating noise is diminished during sleep 39
- Details of the control 40
- Ex powerful operation in cooling mode 40
- General functions sibe04 101 40
- 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 40
- Inverter powerful operation 40
- Main function 40
- Outline 40
- When the powerful operation switch is pressed in each operation mode the fan rotating speed and set temperature become as follows for 20 min 40
- Details of the control 41
- Home leave operation 41
- Main function 33 41
- Others 41
- Outline 41
- Sibe04 101 general functions 41
- Automatic operation 42
- Details of the function 42
- General functions sibe04 101 42
- Main function 42
- Outline 42
- With compressor capacity supplied with no compressor capacity supplied 42
- Details of the control 43
- Input current control 43
- Main function 35 43
- Outline 43
- Sibe04 101 general functions 43
- Details of the control 44
- Freeze up prevention function in cooling 44
- General functions sibe04 101 44
- Main function 44
- Outline 44
- Details of the control 45
- Main function 37 45
- Outline 45
- Peak cut control function 45
- Sibe04 101 general functions 45
- 4 way valve function compensation 46
- Details of the control 46
- General functions sibe04 101 46
- Main function 46
- Outline 46
- An refrigeration oil level descent and progression of the dilution which will arise at operation of the compressors will be avoided by controlling the upper limit of frequency at the edge of compressor s changeover from off to on as follows 47
- Compressor protection function 47
- Fcg frequency guard for compressor protection tcg timer guard for compressor protection 47
- Frequency control set the upper limit of the operation frequency by the controls as follows in starting of compressor start the timer tcg1 and set the upper limit of output frequency at tcg2 for the time of tcg1 when the time of tcg1 expires start tcg2 timer and set the upper limit of output frequency at tcg2 for the time of tcg2 when the time of tcg2 expires start tcg3 timer and set the upper limit of output frequency at tcg3 for the time of tcg3 when the time of tcg3 expires reset the limit of frequency 47
- Main function 39 47
- Others when the compressor operation is stopped at the time of starting this function reset the timer which is counting and reset the limit of frequency these controls are not necessary during defrost control 47
- Outline 47
- Processing 47
- Sibe04 101 general functions 47
- General functions sibe04 101 48
- Main function 48
- Outline 48
- Processing 48
- Wet operation protection i securing of differential pressure and blown air temperature 48
- Main function 41 49
- Outline 49
- Processing 49
- Sibe04 101 general functions 49
- Wet operation protection ii protection from differential pressure 49
- Dew prevention function 50
- General functions sibe04 101 50
- Main function 50
- Outline 50
- Processing 50
- Details of the control 51
- Main function 43 51
- Outline 51
- Setting for long piping 51
- Setting of constants 51
- Sibe04 101 general functions 51
- General functions sibe04 101 52
- Main function 52
- On site setting jumper wire 52
- Outline 52
- Instruction 6 53
- Part 5 system configuration 53
- Caution 54
- Ftxd50 60 71j 54
- Instruction 54
- Safety precautions 54
- Warning 54
- Caution 55
- Installation 55
- Warning 55
- Note for multi system 56
- Caution 57
- How to open the front grille see page 9 57
- Indoor unit 57
- Names of parts 57
- Opening the front grille 57
- Cancel cancel 58
- Clock button 58
- Display 58
- Fan setting button 58
- Home leave button 58
- Instruction sibe04 101 58
- Mode selector button 58
- Names of parts 58
- Off timer button 58
- On off 58
- On off button 58
- On timer button 58
- Outdoor unit silent button 58
- Powerful button 58
- Remote controller 58
- Swing buttons 58
- Swing swing 58
- System configuration 58
- Temperature time adjustment buttons 58
- Timer cancel button 58
- Transmitter 58
- Names of parts 59
- Outdoor unit 59
- Attention 60
- Preparation before operation 60
- Remote controller 60
- Indoor unit 61
- Preparation before operation 61
- Auto dry cool heat operation 62
- Iiiii to change the air flow direction 62
- Iiiii to stop 62
- Adjusting the air flow direction 63
- Adjusting the horizontal blade flap 63
- Adjusting the vertical blade louvre 63
- Attention 63
- D air flow 63
- Iiiii to cancel 3 d air flow 63
- How to use outdoor unit silent operation 64
- Iiiii to cancel powerful operation 64
- Iiiii to cancel the outdoor unit silent operation 64
- Iiiii to use the outdoor unit silent operation 64
- Notes on powerful operation 64
- Outdoor unit silent operation 64
- Powerful operation 64
- Home leave operation 65
- How to use home leave operation 65
- Iiiii how to set the temperature and air flow rate 65
- Iiiii to cancel the home leave operation 65
- Iiiii to use the home leave operation 65
- Home leave operation 66
- Iiiii useful at times like these 66
- Attention 67
- Off timer operation 67
- On timer operation 67
- Timer operation 67
- Care and cleaning 68
- Caution 68
- Cleaning the air filters 68
- Before a long idle period 69
- Care and cleaning 69
- Caution 69
- Cleaning the front grille 69
- Explanation 70
- G gg gg these cases are no troubles the following cases are not air conditioner troubles but have some reasons you may just continue 70
- Troubleshooting 70
- Using it 70
- G gg gg check again please check again before calling a repair person 71
- Troubleshooting 71
- Troubleshooting 72
- Caution 73
- Flx50 60j 73
- Indoor unit 73
- Names of parts 73
- Opening the front grille 73
- Cancel 74
- Homeleave 74
- Instruction sibe04 101 74
- Names of parts 74
- On off 74
- Remote controller 74
- System configuration 74
- Names of parts 75
- Outdoor unit 75
- Attention 76
- Preparation before operation 76
- Remote controller 76
- Indoor unit 77
- Preparation before operation 77
- Auto dry cool heat operation 78
- Auto or heat or cool mode 78
- Iiiii to change the air flow direction 78
- Iiiii to stop 78
- Instruction sibe04 101 78
- System configuration 78
- Adjusting the air flow direction 79
- Adjusting the horizontal blade flap 79
- Adjusting the vertical blade louvre 79
- Attention 79
- Notes on flap angles 79
- How to use outdoor unit silent operation 80
- Iiiii to cancel powerful operation 80
- Iiiii to cancel the outdoor unit silent operation 80
- Iiiii to use the outdoor unit silent operation 80
- Notes on powerful operation 80
- Outdoor unit silent operation 80
- Powerful operation 80
- Home leave operation 81
- How to use home leave operation 81
- Iiiii how to set the temperature and air flow rate 81
- Iiiii to cancel the home leave operation 81
- Iiiii to use the home leave operation 81
- Home leave operation 82
- N useful at times like these 82
- Attention 83
- Off timer operation 83
- On timer operation 83
- Timer operation 83
- Care and cleaning 84
- Caution 84
- Cleaning the air filters 84
- Before a long idle period 85
- Care and cleaning 85
- Explanation 86
- G gg gg these cases are no troubles the following cases are not air conditioner troubles but have some reasons you may just continue using it 86
- Troubleshooting 86
- G gg gg check again please check again before calling a repair person 87
- Troubleshooting 87
- Troubleshooting 88
- Caution for diagnosis 2 89
- Checks 19 89
- Part 6 service diagnosis 89
- Problem symptoms and measures 4 3 service check function 5 89
- Troubleshooting 7 89
- Caution for diagnosis 90
- Troubleshooting with the operation lamp 90
- Service diagnosis 83 91
- Sibe04 101 caution for diagnosis 91
- Troubleshooting with the led indication 91
- Problem symptoms and measures 92
- Problem symptoms and measures sibe04 101 92
- Service diagnosis 92
- Arc417 series 93
- In the arc417a 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 93
- 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 93
- Press the timer cancel button repeatedly until a continuous beep is produced the code indication changes in the sequence shown below and notifies with along beep 93
- Service check function 93
- Service diagnosis 85 93
- Sibe04 101 service check function 93
- Arc423 series 94
- In the arc423a series the temperature display sections on the main unit indicate corresponding codes 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 94
- 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 94
- Press the timer cancel button repeatedly until a continuous beep is produced the code indication changes in the sequence shown below and notifies with along beep 94
- Service check function sibe04 101 94
- Service diagnosis 94
- Indoor units 95
- Not used for troubleshooting varies depending on the cases 95
- Service diagnosis 87 95
- Sibe04 101 troubleshooting 95
- Troubleshooting 95
- Outdoor units 96
- Faulty pcb 97
- Check no refer to p 19 98
- High pressure control during heating operations the temperature detected by the indoor heat exchanger thermistor is above 67 c freeze up protection when the indoor unit heat exchanger temperature is below 0 c during cooling operation 98
- High pressure control during heating operations the temperature detected by the indoor heat exchanger thermistor is used for the high pressure control operation stop the freeze protection control operation halt is activated during cooling operation according to the temperature detected by the indoor unit heat exchanger thermistor 98
- Indoor unit led display 98
- Malfunction decision conditions 98
- Method of malfunction detection 98
- Operation halt due to clogged air filter of the indoor unit operation halt due to dust accumulation on the indoor unit heat exchanger operation halt due to short circuit detection error due to faulty indoor unit heat exchanger thermistor detection error due to faulty indoor unit pcb 98
- Operation shutdown due to high pressure control or freeze up protection thermistor activation 98
- Remote controller display 98
- Service diagnosis 98
- Supposed causes 98
- Troubleshooting 98
- Troubleshooting sibe04 101 98
- Operation halt due to fan motor dc motor or related abnormality wall mounted type 99
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 100
- Check no 5 rerer to p 27 100
- Check no 7 rerer to p 27 100
- Service diagnosis 100
- Troubleshooting 100
- Troubleshooting sibe04 101 100
- Indoor unit led display 101
- Malfunction decision conditions 101
- Method of malfunction detection 101
- Operation halt due to fan motor ac motor or related abnormality floor ceiling suspended dual type 101
- Operation halt due to short circuit inside the fan motor winding operation halt due to breaking of wire inside the fan motor operation halt due to breaking of the fan motor lead wires operation halt due to faulty capacitor of the fan motor detection error due to faulty indoor unit pcb 2 101
- Remote controller display 101
- Service diagnosis 93 101
- Sibe04 101 troubleshooting 101
- Supposed causes 101
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 101
- Troubleshooting 101
- When the detected rotation speed is less than 50 of the h tap under maximum fan motor rotation demand 101
- C4 c9 ca 102
- Indoor unit led display 102
- Malfunction decision conditions 102
- Method of malfunction detection 102
- Operation halt due to detection of thermistor or related abnormality 102
- Remote controller display 102
- Service diagnosis 102
- Supposed causes 102
- Troubleshooting 102
- Troubleshooting sibe04 101 102
- Faulty indoor unit pcb 103
- Indoor unit led display 103
- Malfunction decision conditions 103
- Method of malfunction detection 103
- Microcomputer program is in abnormal condition due to an external factor noise momentary voltage drop momentary power failure etc faulty indoor unit pcb 103
- Remote controller display 103
- Service diagnosis 95 103
- Sibe04 101 troubleshooting 103
- Supposed causes 103
- The proper program operation of the microcomputer is checked by the program 103
- Troubleshooting 103
- When the microcomputer program does not function properly 103
- Faulty indoor unit pcb 104
- Display disabled by fault power supply faulty signal transmitting receiving circuit in indoor printed circuit boards 1 and 2 microcomputer program is in abnormal condition due to an external factor noise momentary voltage drop momentary power failure etc faulty indoor unit pcbs 1 and 2 105
- Indoor unit led display 105
- Malfunction decision conditions 105
- Method of malfunction detection 105
- Power supply abnormalities or faulty indoor pcb 105
- Remote controller display 105
- Service diagnosis 97 105
- Sibe04 101 troubleshooting 105
- Supposed causes 105
- The proper program operation of the microcomputer is checked by the program 2 in indoor outdoor signal communications the indoor unit determines whether the outdoor unit receives signals properly by detecting signals transmitted by the outdoor unit to the indoor unit 105
- Troubleshooting 105
- When the microcomputer program does not function properly 2 when the indoor unit determines that the indoor unit does not properly receive signals transmitted by the outdoor unit in indoor outdoor signal communications 105
- Check no 2 refer to p 21 106
- Faulty outdoor unit pcb faulty indoor unit pcb indoor unit outdoor unit signal transmission error due to wiring error indoor unit outdoor unit signal transmission error due to disturbed power supply waveform indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 106
- Indoor unit led display 106
- Malfunction decision conditions 106
- Method of malfunction detection 106
- Remote controller display 106
- Service diagnosis 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
- Troubleshooting sibe04 101 106
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 106
- Connection of improper models installation of wrong pcb faulty pcb 107
- Faulty indoor outdoor power supply specification 107
- Indoor unit led display 107
- Malfunction decision conditions 107
- Method of malfunction detection 107
- Remote controller display 107
- Service diagnosis 99 107
- Sibe04 101 troubleshooting 107
- Supposed causes 107
- The indoor outdoor unit data communication signal is used to detect different power specifications connection of indoor power receiving unit and outdoor power receiving unit 107
- Troubleshooting 107
- When the indoor power receiving unit is connected to the outdoor power receiving unit 107
- Malfunction decision conditions 108
- Method of malfunction detection 108
- Operation halt due to high pressure control for cooling operation 108
- Outdoor unit led display 108
- Remote controller display 108
- Service diagnosis 108
- Supposed causes 108
- Troubleshooting 108
- Troubleshooting sibe04 101 108
- Malfunction decision conditions 109
- Method of malfunction detection 109
- Operation halt due to discharge pipe temperature control 109
- Outdoor unit led display 109
- Remote controller display 109
- Service diagnosis 101 109
- Sibe04 101 troubleshooting 109
- Supposed causes 109
- Troubleshooting 109
- Interrupt due to ol action or thermal fuse blow out 110
- Malfunction decision conditions 110
- Method of malfunction detection 110
- Outdoor unit led display 110
- Remote controller display 110
- Service diagnosis 110
- Supposed causes 110
- Troubleshooting sibe04 101 110
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 111
- Check no 5 refer to p 23 111
- Service diagnosis 103 111
- Sibe04 101 troubleshooting 111
- Troubleshooting 111
- Compressor seizing 112
- Malfunction decision conditions 112
- Method of malfunction detection 112
- Outdoor unit led display 112
- Remote controller display 112
- Service diagnosis 112
- Supposed causes 112
- Troubleshooting 112
- Troubleshooting sibe04 101 112
- Dc fan seizing 113
- Malfunction decision conditions 113
- Method of malfunction detection 113
- Outdoor unit led display 113
- Remote controller display 113
- Service diagnosis 105 113
- Sibe04 101 troubleshooting 113
- Supposed causes 113
- Troubleshooting 113
- Malfunction decision conditions 114
- Method of malfunction detection 114
- Operation halt due to detection of input over current 114
- Outdoor unit led display 114
- Remote controller display 114
- Service diagnosis 114
- Supposed causes 114
- Troubleshooting sibe04 101 114
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 115
- Check no 3 refer to p 21 115
- Check no 4 refer to p 22 115
- Check no 9 refer to p 25 115
- Check no refer to p 20 115
- Internal wiring errors can cause an input over current if the equipment stops due to an input over current after the wires are disconnected and connected again for parts replacement etc check for wiring errors 115
- Service diagnosis 107 115
- Sibe04 101 troubleshooting 115
- Troubleshooting 115
- Malfunction decision conditions 116
- Method of malfunction detection 116
- Operation halt due to position detection sensor 116
- Outdoor unit led display 116
- Remote controller display 116
- Service diagnosis 116
- Supposed causes 116
- Troubleshooting 116
- Troubleshooting sibe04 101 116
- Malfunction decision conditions 117
- Method of malfunction detection 117
- Operation halt due to detection of ct error 117
- Outdoor unit led display 117
- Remote controller display 117
- Service diagnosis 109 117
- Sibe04 101 troubleshooting 117
- Supposed causes 117
- Troubleshooting 117
- Malfunction decision conditions 118
- Method of malfunction detection 118
- Outdoor unit led display 118
- Output overcurrent 118
- Remote controller display 118
- Service diagnosis 118
- Supposed causes 118
- Troubleshooting sibe04 101 118
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 119
- Check no 3 refer to p 21 119
- Check no 4 refer to p 22 119
- Check no 9 refer to p 25 119
- Check no refer to p 20 119
- Erroneous internal wiring can result in output overcurrent in some cases if system stops due to output overcurrent after parts replacement that requires disconnection of wires check wiring carefully 119
- Service diagnosis 111 119
- Sibe04 101 troubleshooting 119
- Troubleshooting 119
- J3 j6 h9 120
- Malfunction decision conditions 120
- Method of malfunction detection 120
- Operation halt due to thermistor error or disconnection detection 120
- Outdoor unit led display 120
- Remote controller display 120
- Service diagnosis 120
- Supposed causes 120
- Troubleshooting 120
- Troubleshooting sibe04 101 120
- Malfunction decision conditions 121
- Method of malfunction detection 121
- Operation halt due to detection of insufficient gas 121
- Outdoor unit led display 121
- Remote controller display 121
- Service diagnosis 113 121
- Sibe04 101 troubleshooting 121
- Supposed causes 121
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 122
- Check no 0 refer to p 25 122
- Check no refer to p 19 122
- Service diagnosis 122
- Troubleshooting 122
- Troubleshooting sibe04 101 122
- Detection of low voltage lvp 123
- Malfunction decision conditions 123
- Method of malfunction detection 123
- Outdoor unit led display 123
- Remote controller display 123
- Service diagnosis 115 123
- Sibe04 101 troubleshooting 123
- Supposed causes 123
- Troubleshooting 123
- Faulty outdoor unit pcb 124
- Malfunction decision conditions 124
- Method of malfunction detection 124
- Outdoor unit led display 124
- Remote controller display 124
- Service diagnosis 124
- Supposed causes 124
- Troubleshooting 124
- Troubleshooting sibe04 101 124
- Faulty outdoor unit pcb and transmitting receiving circuit 125
- Malfunction decision conditions 125
- Method of malfunction detection 125
- Outdoor unit led display 125
- Remote controller display 125
- Service diagnosis 117 125
- Sibe04 101 troubleshooting 125
- Supposed causes 125
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 126
- Check no 2 refer to p 21 126
- Service diagnosis 126
- Troubleshooting 126
- Troubleshooting sibe04 101 126
- Check no 127
- Checks 127
- How to check 127
- Service diagnosis 119 127
- Sibe04 101 checks 127
- Thermistor resistance check 127
- Check no 128
- Checks sibe04 101 128
- Installation condition check 128
- Outdoor fan system check 2 128
- Service diagnosis 128
- Check no 2 129
- Check no 3 129
- Output current measurement 129
- Output voltage measurement 129
- Power supply waveforms check 129
- Power transistor output check 129
- Service diagnosis 121 129
- Sibe04 101 checks 129
- Before measuring operate the unit for several minutes then shut down the operation by force using the circuit breaker 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 130
- Capacitor voltage check 130
- Check no 4 130
- Checks sibe04 101 130
- Disconnect the compressor harness connector from the outdoor unit pcb 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 130
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 130
- Note the charge section is applied with high voltage therefore exercise caution during measurement to prevent electric shock 130
- Power transistor check 130
- Power transistor check capacitor voltage check 130
- Service diagnosis 130
- Check no 5 131
- Refrigerant system check 131
- Service diagnosis 123 131
- Sibe04 101 checks 131
- Since capacitor and are connected to power transistor and capacitor voltage can be measured at the power transistor and terminals on this p c board powertransistor is terminal dc 1 or dc 2 and powertransistor is terminal dc 1 or dc 2 131
- 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 131
- Brown blue yellow purple 132
- Check no 6 132
- Check no 7 132
- Checks sibe04 101 132
- Fan motor connector output check 132
- Rectifier check 132
- Service diagnosis 132
- Check no 0 133
- Check no 9 133
- 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 conductivity using a tester check the conductivity 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 133
- Discharge pressure check 133
- Electronic expansion valve check 133
- If no ev generates latching sound in the above step 2 the outdoor unit pcb is faulty 5 if the conductivity is confirmed in the above step 2 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 if latching sound is generated the outdoor unit pcb is faulty if latching sound is not generated the ev unit is faulty 133
- Note please note that the latching sound varies depending on the valve type 133
- Service diagnosis 125 133
- Sibe04 101 checks 133
- Check no 7 134
- Check no 8 134
- Checks sibe04 101 134
- Fan motor position signal check 134
- Outdoor unit pcb rotation pulse input check 134
- Service diagnosis 134
- Check no 5 135
- Check no 7 135
- Check the connector s connection 2 check the output of the motor power supply voltage pins 4 7 3 check the output of the motor s control voltage pins 3 4 4 check the output of the rotation command voltage pins 2 4 135
- Check the connector s connection 2 set the power supply to on and off 3 check if the pulse inputs are conducted four times or not when rotating the fan motor one cycle by hand pins 1 4 135
- Indoor unit pcb 1 output check 135
- Indoor unit pcb 1 rotation pulse input check 135
- Service diagnosis 127 135
- Sibe04 101 book page 127 monday october 15 2001 3 08 pm 135
- Sibe04 101 checks 135
- For rxd50 60 71j 30 137
- Part 7 removal procedure 137
- For rxd50 60 71j 138
- For rxd50 60 71j sibe04 101 138
- Procedure 138
- Removal of outer panels and fan motor 138
- Removal procedure 138
- Removal procedure 131 139
- Sibe04 101 for rxd50 60 71j 139
- For rxd50 60 71j sibe04 101 140
- Removal procedure 140
- Removal procedure 133 141
- Remove the four screws from the fan motor 141
- Remove the washer fitted nut m6 from the propeller fan 141
- Sibe04 101 for rxd50 60 71j 141
- Removal of electrical box 142
- Removal procedure 135 143
- Sibe04 101 for rxd50 60 71j 143
- Disconnect the outdoor air thermistor 144
- For rxd50 60 71j sibe04 101 144
- Removal procedure 144
- Remove the screw from the earth terminal 144
- Remove the two screws from the electrical box 144
- Detach the right side panel by lifting it up 145
- Removal procedure 137 145
- Remove the three screws from the right side panel 145
- Sibe04 101 for rxd50 60 71j 145
- For rxd50 60 71j sibe04 101 146
- Removal procedure 146
- For rxd50 60 71j sibe04 101 148
- Procedure 148
- Removal of partition board and reactor 148
- Removal procedure 148
- For rxd50 60 71j sibe04 101 150
- Procedure 150
- Removal of sound insulation for compressor 150
- Removal procedure 150
- Procedure 151
- Removal of 4 way valve 151
- Removal procedure 143 151
- Sibe04 101 for rxd50 60 71j 151
- For rxd50 60 71j sibe04 101 152
- Procedure 152
- Removal of motorized valve 152
- Removal procedure 152
- Procedure 153
- Removal of compressor 153
- Removal procedure 145 153
- Sibe04 101 for rxd50 60 71j 153
- For rxd50 60 71j sibe04 101 154
- Removal procedure 154
- Part 8 appendix 155
- Piping diagrams 48 155
- Wiring diagrams 50 155
- Appendix 156
- Flx50jv1b flx60jv1b 156
- Ftxd50jv1b ftxd60jv1b ftxd71jv1b 156
- Indoor unit 156
- Indoor units 156
- Piping diagrams 156
- Piping diagrams sibe04 101 156
- Appendix 149 157
- Outdoor units 157
- Rxd50jv1b 157
- Rxd60jv1b rxd71jv1b 157
- Sibe04 101 piping diagrams 157
- Appendix 158
- Flx50jv1b flx60jv1b 158
- Ftxd50jv1b ftxd60jv1b ftxd71jv1b 158
- Indoor units 158
- Wiring diagrams 158
- Wiring diagrams sibe04 101 158
- Appendix 151 159
- Outdoor units 159
- Rxd50jv1b rxd60jv1b rxd71jv1b 159
- Sibe04 101 book page 151 monday october 15 2001 3 08 pm 159
- Sibe04 101 wiring diagrams 159
- Numerics 161
- Symbols 161
- Drawings flow charts 163
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