Daikin FTXD50JV1B [142/164] Removal of electrical box

For RXD50·60·71J SiBE04-101

134 Removal Procedure

1.2 Removal of Electrical Box

Procedure Warning Be sure to turn off all power supplies before disassembling work.

Step Procedure Points

Disconnect the

compressor leads.

Disconnect the motorized

valve leads.

SiBE04-101.book Page 134 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

Daikin FTXD50JV1B [142/164] Removal of electrical box

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