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Daikin FTK20GV1B Сервис мануал онлайн [11/184] 401936
![Daikin FTK20GV1B Сервис мануал онлайн [11/184] 401936](/views2/1772033/page11/bgb.png)
Содержание
- Inverter pair 1
- Si04 807 1
- Wall mounted type g series 1
- Cooling only indoor units 2
- Heat pump indoor units 2
- Inverter pair g series 2
- Outdoor units 2
- Table of contents 2
- Control specification 2 3
- Function of thermistor 1 3
- Introduction v 3
- List of functions 3
- Main functions 0 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 3 3
- Part 4 function and control 9 3
- Printed circuit board connector wiring diagram 4 3
- Specifications 3
- Caution for diagnosis 2 2 problem symptoms and measures 3 3 service check function 4 4 troubleshooting 7 4
- Check 10 4
- Indoor unit 20 4
- Part 5 operation manual 7 4
- Part 6 service diagnosis 1 4
- Part 7 removal procedure 19 4
- System configuration 8 2 instruction 9 4
- Drawings flow charts v 5
- Index i 5
- Others 58 5
- Outdoor unit 41 5
- Part 8 others 57 5
- Part 9 appendix 61 5
- Piping diagrams 62 5
- Wiring diagrams 65 5
- Cautions regarding safety of workers 6
- Introduction 6
- Safety cautions 6
- Warning 6
- Caution 7
- Warning 7
- Cautions regarding safety of users 8
- Warning 8
- Caution 9
- Warning 9
- Caution 10
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 10
- Used icons 10
- List of functions 12
- Part 1 list of functions 12
- Holding functions no functions 13
- List of functions 13
- List of functions si04 807 13
- Holding functions no functions 14
- List of functions 3 14
- Si04 807 list of functions 14
- Part 2 specifications 16
- Specifications 16
- Cooling only 17
- Hz 230v 17
- Specifications 17
- Specifications si04 807 17
- Hz 230v 18
- Si04 807 specifications 18
- Specifications 7 18
- Heat pump 19
- Hz 230v 19
- Specifications 19
- Specifications si04 807 19
- Hz 230v 20
- Si04 807 specifications 20
- Specifications 9 20
- Hz 230v 21
- Specifications 21
- Specifications si04 807 21
- Hz 230v 22
- Si04 807 specifications 22
- Specifications 11 22
- Part 3 printed circuit board connector wiring diagram 24
- Printed circuit board connector wiring diagram 4 24
- Indoor units 25
- Printed circuit board connector wiring diagram 25
- Pcb 2 display pcb 26
- Pcb detail pcb 1 control pcb 26
- Printed circuit board connector wiring diagram 15 26
- Si04 807 printed circuit board connector wiring diagram 26
- Outdoor units 27
- Pcb 2 main pcb 28
- Pcb detail pcb 1 filter pcb 28
- Printed circuit board connector wiring diagram 17 28
- Si04 807 printed circuit board connector wiring diagram 28
- Control specification 2 30
- Function of thermistor 1 30
- Main functions 0 30
- Part 4 function and control 30
- Additional control parameters 31
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 31
- Forced cooling operation 31
- Frequency principle 31
- Frequency restrictions 31
- Initial settings 31
- 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 31
- 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 31
- Main functions 31
- The difference between the room temperature and the set temperature 31
- The load condition of the operating indoor unit 31
- The target frequency is adapted by additional parameters in the following cases 31
- 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 32
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 32
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor air temperature is 2 c 32
- Forced cooling operation for more information refer to forced operation mode on page 32
- Frequency limits the following table shows the functions that define the minimum and maximum frequency 32
- Inverter features the inverter provides the following features 32
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature 32
- The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load 32
- Airflow direction control 33
- Fan speed control for indoor units 34
- 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 35
- Programme dry function 35
- Programme dry function removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and airflow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode 35
- Zone a thermostat off 35
- Zone b zone b 35
- Zone c thermostat on 35
- Automatic operation 36
- Cooling dry 37
- Function and control 37
- Heating 37
- Main functions si04 807 37
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 37
- The operation turns on in any zones except a 37
- The system resumes from defrost control in any zones except a 37
- The temperature difference is above the zone c after being in the zone a 37
- The temperature difference is in the zone a 37
- Thermostat control 37
- Thermostat control is based on the difference between the room temperature and the setpoint 37
- Thermostat off condition 37
- Thermostat on condition 37
- Night set mode 38
- Econo mode 39
- 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 20 minutes 40
- Ex powerful operation in cooling mode 40
- Inverter powerful operation 40
- 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 40
- Auto restart function 41
- Hot start function 41
- Mold proof air filter prefilter 41
- On off button on indoor unit 41
- Other functions 41
- Self diagnosis digital display 41
- Signal receiving sign 41
- Function of thermistor 42
- Heat pump model 42
- Control specification 43
- Control specification si04 807 43
- Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting 43
- For cooling only model there are following models stop and cooling including drying 43
- Function and control 43
- Mode hierarchy 43
- Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation 43
- 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 43
- Frequency control 44
- D signal 1 p control calculate 45
- D signal and is used for frequency command 45
- D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the 45
- D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 45
- D value is large increase the frequency 45
- D value is small decrease the frequency when the 45
- D value obtaining the fixed 45
- D value of the indoor unit and the q value of the indoor unit q value indoor unit output determined from indoor unit volume airflow rate and other factors 45
- D value when the 45
- Determine lower limit frequency 45
- Determine prohibited frequency 45
- Determine upper limit frequency 45
- For limiting lower limit frequency management is carried out only when the frequency rises 45
- Frequency management when other controls are functioning 45
- I control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the 45
- Indoor frequency command 45
- Pi control determine frequency up down by 45
- Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep 45
- 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 up protection dew prevention fin thermistor temperature 45
- Th off thermostat off 45
- There is a certain prohibited frequency such as a power supply frequency 45
- Upper and lower limit of frequency by pi control the frequency upper and lower limits are set depending on indoor unit when low noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit the upper limit frequency must be lowered than the usual setting 45
- When frequency is drooping frequency management is carried out only when the frequency droops 45
- When starting the compressor or when conditions are varied due to the change of the room the frequency must be initialized according to the 45
- Controls at mode changing start up 46
- Four way valve operation compensation 46
- Four way valve switching 46
- Preheating operation 46
- 3 minute standby 47
- Compressor protection function 47
- Detail divide the zone 47
- Discharge pipe temperature control 47
- Management within the zones 47
- Outline the discharge pipe temperature is used as the compressor s internal temperature if the discharge pipe temperature rises above a certain level the operating frequency upper limit is set to keep this temperature from going up further 47
- Prohibit to turn on the compressor for 3 minutes after turning it off except when defrosting only for heat pump model 47
- When turning the compressor from off to on the upper limit of frequency must be set as follows the function must not be used when defrosting only for heat pump model 47
- After 2 s in this zone the compressor is stopped 48
- After this the output frequency is pulled down by 2hz every second until it reaches the steady zone keep zone 48
- Detail 48
- Frequency control in each zone drooping zone 48
- Input current control 48
- Limit of the frequency is cancelled stop zone 48
- Limitation of current drooping and stop value according to the outdoor air temperature 1 in case the operation mode is cooling 48
- Outline the microcomputer calculates the input current during the compressor is running and set the frequency upper limit from such input current in case of heat pump model this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation 48
- The current droops when outdoor air temperature becomes higher than a certain level model by model 48
- The current droops when outdoor air temperature becomes higher than a certain level model by model 2 in case the operation mode is heating 48
- The maximum limit of the compressor frequency in this control is defined as operation frequency 2hz 48
- The present maximum frequency goes on reset zone 48
- Freeze up protection control 49
- Heating peak cut control 49
- Fan control 50
- Liquid compression protection function 2 50
- Control specification si04 807 51
- Defrost control 51
- 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 28 minutes of accumulated time pass since the start of the operation or ending the defrosting conditions for canceling defrost the judgment must be made with heat exchanger temperature 4 c 22 c 51
- Function and control 51
- 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 51
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 52
- Electronic expansion valve control 52
- Function and control 41 52
- Outline the following items are included in the electronic expansion valve control electronic expansion valve is fully closed 1 electronic expansion valve is fully closed when turning on the power 2 pressure equalizing control open control 1 electronic expansion valve control when starting operation 2 control when frequency changed 3 control for defrosting only for heat pump model 4 control when a discharge pipe temperature is abnormally high 5 control when the discharge pipe thermistor is disconnected feedback control 1 discharge pipe temperature control 52
- Si04 807 control specification 52
- Disconnection of the discharge pipe thermistor 53
- Fully closing with power on 53
- High temperature of the discharge pipe 53
- Opening limit 53
- Pressure equalization control 53
- Starting operation control 53
- Control when frequency is changed 54
- Target discharge pipe temperature control 54
- Detection of overload and over current 55
- Insufficient gas control 55
- Malfunctions 55
- Sensor malfunction detection 55
- Additional function 56
- Compressor operating frequency is increased to pi max max hz of operating room and outdoor unit airflow rate is increased 56
- Detail forced cooling 56
- Detail i judgment by power consumption when an output frequency is exceeds 50 hz and the input current is less than specified value the adjustment is made for insufficient gas 56
- Forced operation mode 56
- Ii judgment by discharge pipe temperature when discharge pipe temperature is certain degree higher than target value and the electronic expansion value opening is 470 pulses max the adjustment is made for insufficient gas 56
- Iii judgment by the difference of temperature when the difference of the temperature is smaller than it is regarded as insufficient gas 56
- Outline forced operating mode includes only forced cooling 56
- Power supply voltage is detected each time equipment operation starts 56
- Powerful operation mode 56
- Voltage detection function 56
- Part 5 operation manual 58
- System configuration 8 2 instruction 9 58
- System configuration 59
- Caution 60
- Instruction 60
- Safety precautions 60
- Warning 60
- Consider nuisance to your neighbours from noises 61
- Electrical work 61
- Installation site 61
- System relocation 61
- Indoor unit 62
- Name of parts 62
- Names of parts 62
- Outdoor unit 63
- Arc433a87 a8 64
- Remote controller 64
- Preparation before operation 65
- To set the batteries 65
- Attention 66
- Choose a place from where the sig nals reach the unit 66
- Fix the holder to a wall a pillar or similar location with the screws procured locally 66
- Place the remote controller in the remote controller holder 66
- Preparation before operation 66
- To fix the remote controller holder on the wall 66
- To operate the remote controller 66
- 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 67
- Cancel 67
- Comfort 67
- Condensation may occur on the indoor unit and drip 67
- If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 67
- Mode fan 67
- Operation outside this humidity or temperature range may cause a safety device to disable the system 67
- Outdoor temperature 10 to 46 c indoor temperature 18 to 32 c indoor humidity 80 max 67
- Outdoor temperature 15 to 20 c indoor temperature 10 to 30 c 67
- Please note 67
- Press clock button 67
- Recommended temperature setting 67
- The air conditioner always consumes 15 35 watts of electricity even while it is not operating 67
- Tips for saving energy 67
- To set the clock 67
- Turn the breaker on 67
- Turning on the breaker opens the flap then closes it again this is a normal procedure 67
- Use the air conditioner in the following conditions 67
- Auto dry cool heat fan operation 68
- To change the temperature setting 68
- To start operation 68
- To stop operation 68
- Press fan setting button 69
- To change the airflow rate setting 69
- Adjusting the airflow direction 70
- To adjust the horizontal blades flaps 70
- To adjust the vertical blades louvers 70
- 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 71
- Notes on comfort airflow operation 71
- Notes on flaps and louvers angles 71
- Press comfort airflow button 71
- Press comfort airflow button again 71
- The flap will go down 71
- To cancel comfort airflow operation 71
- To start comfort airflow operation 71
- Powerful operation 72
- To cancel powerful operation 72
- To start powerful operation 72
- Econo operation 73
- To cancel econo opera tion 73
- To start econo operation 73
- Timer operation 74
- To cancel the off timer operation 74
- To use off timer operation 74
- Attention 75
- Press cancel button 75
- Press on timer button 75
- Press on timer button again 75
- Press timer setting button until the time setting reaches the point you like 75
- To cancel on timer operation 75
- To combine on timer and off timer 75
- To use on timer operation 75
- Care and cleaning 76
- Caution 76
- Front panel 76
- Indoor unit outdoor unit and remote controller 76
- Air filter 77
- Clean or replace each filter 77
- Filters 77
- Open the front panel page 18 77
- Pull out the air filters 77
- Set the air filter and titanium apatite photocatalytic air purifying filter as they were and close the front panel 77
- Take off the titanium apatite photocatalytic air purifying filter 77
- Titanium apatite photocatalytic air purifying filte 77
- Wash the air filters with water or clean them with vacuum cleaner 77
- Before a long idle period 78
- Maintenance 78
- Replacement 78
- Case explanation 79
- These cases are not troubles 79
- This happens when smells of the room furniture or cigarettes are absorbed into the unit and discharged with the airflow if this happens we recommend you to have the indoor unit washed by a technician consult the service shop where you bought the air conditioner 79
- Trouble shooting 79
- Troubleshooting 79
- Case check 80
- Check again 80
- Call the service shop immediately 81
- Disposal requirements 81
- Important information regarding the refrigerant used 81
- 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 81
- Turn the breaker off and call the service shop 81
- Warning 81
- We recommend periodical maintenance 81
- Caution for diagnosis 2 2 problem symptoms and measures 3 3 service check function 4 4 troubleshooting 7 82
- Check 10 82
- Part 6 service diagnosis 82
- Caution for diagnosis 83
- Indicator lamps 83
- Problem symptoms and measures 84
- Arc433a87 a8 85
- Check method 1 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 85
- In the arc433 series remote controller the temperature display sections on the main unit indicate corresponding codes 85
- 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 85
- Press the timer cancel button repeatedly until a continuous beep is produced 85
- Service check function 85
- The code indication changes in the sequence shown below and notifies with a long beep 85
- Displayed only when system down occurs 88
- Error codes and description 88
- Troubleshooting 88
- Indoor unit pcb abnormality 89
- Freeze up protection control or high pressure control 90
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 91
- Caution 91
- Check no 6 refer to p 12 91
- Service diagnosis 91
- Troubleshooting 91
- Troubleshooting si04 807 91
- Fan motor dc motor or related abnormality 92
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 93
- Check no 0 refer to p 12 93
- Check no 8 refer to p 16 93
- Check no 9 refer to p 12 93
- Service diagnosis 93
- Troubleshooting 93
- Troubleshooting si04 807 93
- Thermistor or related abnormality indoor unit 94
- Check no 0 refer to p 14 95
- Faulty outdoor unit pcb faulty indoor unit pcb 95
- Indoor unit outdoor unit signal transmission error due to wiring error due to disturbed power supply waveform due to breaking of wire in the connection wires between the indoor and outdoor units wire no 3 95
- Malfunction decision conditions 95
- Method of malfunction detection 95
- Remote controller display 95
- Short circuit inside the fan motor winding 95
- Signal transmission error between indoor and outdoor unit 95
- Supposed causes 95
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 95
- Troubleshooting 95
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 95
- Unspecified voltage between indoor and outdoor units 96
- Outdoor unit pcb abnormality 97
- A compressor overload is detected through compressor ol 98
- Check no 1 refer to p 15 98
- Check no 4 refer to p 10 98
- Check no 5 refer to p 11 98
- Check no 6 refer to p 12 98
- Electronic expansion valve defective 98
- Four way valve malfunctioning 98
- If the compressor ol is activated twice the system will be shut down 98
- Malfunction decision conditions 98
- Method of malfunction detection 98
- Ol activation compressor overload 98
- Outdoor unit pcb defective 98
- Refrigerant shortage 98
- Remote controller display 98
- Stop valve defective 98
- Supposed causes 98
- 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 98
- The operating temperature condition is not specified 98
- Troubleshooting 98
- Water mixed in the local piping 98
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 99
- Clearing condition continuous run for about 10 minutes normal 99
- Compressor harness disconnected 99
- Compressor lock 99
- Compressor locked 99
- Malfunction decision conditions 99
- Method of malfunction detection 99
- Remote controller display 99
- Supposed causes 99
- The system judges the compressor lock and cannot operation with position detection within 15 seconds after start up 99
- The system judges the compressor lock and stops due to over current 99
- The system will be shut down if the error occurs 16 times 99
- Troubleshooting 99
- Dc fan lock 100
- An input over current is detected by checking the input current value with the compressor running 101
- Check no 7 refer to p 13 101
- Check no 8 refer to p 13 101
- Error detection due to outdoor unit pcb 101
- Heating above 14a 101
- Input over current detection 101
- Malfunction decision conditions 101
- Method of malfunction detection 101
- Over current due to compressor failure 101
- Over current due to defective outdoor unit pcb 101
- Over current due to defective power transistor 101
- Over current due to short circuit 101
- Remote controller display 101
- Supposed causes 101
- The following current with the compressor running continues for 2 seconds coolin 101
- Troubleshooting 101
- Four way valve abnormality 102
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 103
- Check no 1 refer to p 15 103
- Check no 5 refer to p 11 103
- Check no 6 refer to p 12 103
- Service diagnosis 103
- Troubleshooting 103
- Troubleshooting si04 807 103
- Check no 1 refer to p 15 104
- Check no 4 refer to p 10 104
- Check no 6 refer to p 12 104
- Discharge pipe temperature control 104
- Discharge pipe thermistor defective heat exchanger or outdoor air temperature thermistor defective 104
- Electronic expansion valve defective 104
- Four way valve malfunctioning 104
- If a stop takes place 4 times successively due to abnormal discharge pipe temperature the system will be shut down 104
- If the temperature being detected by the discharge pipe thermistor rises above c the compressor will stop the error is cleared when the temperature has dropped below c 104
- Malfunction decision conditions 104
- Method of malfunction detection 104
- Outdoor unit pcb defective 104
- Refrigerant shortage 104
- Remote controller display 104
- Stop temperatures 104
- Stop valve defective 104
- Supposed causes 104
- The discharge pipe temperature control stop frequency drooping etc is checked with the temperature being detected by the discharge pipe thermistor 104
- 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 104
- Troubleshooting 104
- Water mixed in the local piping 104
- High pressure control in cooling 105
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 106
- Caution 106
- Check no 4 refer to p 10 106
- Check no 6 refer to p 12 106
- Check no 7 refer to p 13 106
- Check no 9 refer to p 14 106
- Service diagnosis 95 106
- Si04 807 troubleshooting 106
- Troubleshooting 106
- Compressor system sensor abnormality 107
- A compressor startup failure is detected by checking the compressor running condition through the position detection circuit 108
- Check no 3 refer to p 15 108
- Clearing condition continuous run for about 10 minutes normal 108
- Compressor itself defective 108
- Compressor relay cable disconnected 108
- Input voltage out of specification 108
- Malfunction decision conditions 108
- Method of malfunction detection 108
- Outdoor unit pcb defective 108
- Position sensor abnormality 108
- Remote controller display 108
- Stop valve closed 108
- Supposed causes 108
- The compressor fails to start in about 15 seconds after the compressor run command signal is sent 108
- The system will be shut down if the error occurs 16 times 108
- Troubleshooting 108
- Dc voltage current sensor abnormality 109
- Thermistor or related abnormality outdoor unit 110
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 111
- Check no 6 refer to p 12 111
- Discharge pipe thermistor 111
- Outdoor air temperature thermistor 111
- Outdoor heat exchanger thermistor 111
- Radiation fin thermistor 111
- Service diagnosis 111
- Troubleshooting 111
- Troubleshooting si04 807 111
- Electrical box temperature rise 112
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 113
- Check no 6 refer to p 12 113
- Check no 7 refer to p 13 113
- Check no 9 refer to p 14 113
- Service diagnosis 113
- Troubleshooting 113
- Troubleshooting si04 807 113
- Radiation fin temperature rise 114
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 115
- Check no 6 refer to p 12 115
- Check no 7 refer to p 13 115
- Check no 9 refer to p 14 115
- Note refer to 1 application of silicon grease to a power transistor and a diode bridge on p160 115
- Service diagnosis 115
- Troubleshooting 115
- Troubleshooting si04 807 115
- Output over current detection 116
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 117
- Check no 3 refer to p 15 117
- Check no 7 refer to p 13 117
- Check no 8 refer to p 13 117
- Service diagnosis 117
- Troubleshooting 117
- Troubleshooting si04 807 117
- Insufficient gas 118
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 119
- Check no 4 refer to p 10 119
- Check no 6 refer to p 12 119
- Service diagnosis 119
- Troubleshooting 119
- Troubleshooting si04 807 119
- An abnormal voltage rise is detected by checking the specified over voltage detection circuit 120
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer the voltage is over 400v 120
- Clearing condition continuous run for about 10 minutes normal 120
- Malfunction decision conditions 120
- Method of malfunction detection 120
- Over voltage detection 120
- Over voltage detection circuit defective 120
- Pam control part s defective 120
- Remote controller display 120
- Short circuit inside the fan motor winding 120
- Supply voltage not as specified 120
- Supposed causes 120
- The system will be shut down if the error occurs 255 times 120
- Troubleshooting 120
- Electronic expansion valve check 121
- How to check 121
- Check no 5 122
- Four way valve performance check 122
- Service diagnosis 111 122
- Si04 807 check 122
- 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 123
- Thermistor resistance check 123
- Check no 7 124
- Check no 8 124
- Discharge pressure check 124
- Installation condition check 124
- Service diagnosis 113 124
- Si04 807 check 124
- Check no 0 measure the power supply waveform between pins 1 and 2 on the terminal board and check the waveform disturbance 125
- Check no 9 125
- Check si04 807 125
- Check to see if the power supply waveform is a sine wave fig 125
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 125
- Fig fig 125
- Outdoor unit fan system check with dc motor 125
- Power supply waveforms check 125
- Service diagnosis 125
- Check no 1 126
- Check no 3 126
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector then follow the procedure below to measure resistance between power transistor and and the u v and w terminals of the compressor connector with a multi tester evaluate the measurement results for a pass fail judgment 126
- Inverter units refrigerant system check 126
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 126
- Power transistor check 126
- 1 make sure the control voltage of dc15v is being applied 2 make a turn of the fan motor with hand and make sure the pulse 0 15v appears 4 times at pins 10 and 13 127
- Check no 8 1 check the connector for connection 2 check the motor power voltage is generated between pins 2 and 3 127
- Check si04 807 127
- Indoor pcb output check 127
- Propeller fan motor s70 127
- Service diagnosis 127
- Turning speed pulse input on the outdoor unit pcb check 127
- Between pins 9 and 7 and between 7 and 5 128
- Check no 0 1 check the connector for connection 2 turn the power off 3 check if each resistance at the phases u v and w is between 1 128
- Check no 9 1 check the connector for connection 2 turn the power on and stop the operation 3 check if the rotation pulse is input 4 times when the fan motor is manually rotated once between pins 1 and 3 128
- Fan motor wire short circuit check 128
- Service diagnosis 117 128
- Si04 807 check 128
- Turning speed pulse on the indoor unit pcb check 128
- Indoor unit 20 130
- Outdoor unit 41 130
- Part 7 removal procedure 130
- Indoor unit 131
- Removal of air filter 131
- Removal of front panel 133
- Removal of front grille 134
- Removal of horizontal blades and safety net 136
- Removal of electrical box vertical blade 138
- Removal of pcb swing motor 141
- Disconnect the connector 143
- Remove the screw of the swing motor 143
- Removing the swing motor 143
- Removal of heat exchanger 145
- Removal of fan rotor 148
- Exchange of drain hose 151
- Outdoor unit 152
- Removal of panels 152
- Removal of fan motor propeller fan 154
- Removal of pcb 155
- Removal of sound blanket 162
- Removal of four way valve 164
- Removal of compressor 167
- Others 58 168
- Part 8 others 168
- Others 169
- Test run from the remote controller 169
- Control pcb of the indoor unit 1 remove the front grille 2 screws 2 remove the service cover 1 screw 3 remove the drip proof plate 3 tabs 4 cut the address jumper ja on the control pcb 170
- How to set the different addresses 170
- Jumper setting 170
- Jumper settings 170
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 170
- When two units are installed in one room 170
- Wireless remote controller 1 slide the front cover and take it off 2 cut the address jumper j4 170
- Application of silicon grease to a power transistor and a diode bridge 171
- Not applied paper wastage 171
- Ok evenly applied silicon grease ng not evenly applied ng foreign object 171
- Power transistor trm tpm igbt ipm spm etc 171
- Take out a pcb diode bridge diode bridge rectifier stack etc 171
- Part 9 appendix 172
- Piping diagrams 62 172
- Wiring diagrams 65 172
- Cooling only 173
- Ftk20 25 35gv1b 173
- Ftx20 25 35gv1b atx20 25 35gv1b 173
- Heat pump 173
- Indoor units 173
- Piping diagrams 173
- Appendix 163 174
- Cooling only 174
- Outdoor units 174
- Rk20 25gv1b 174
- Rk35gv1b 174
- Si04 807 piping diagrams 174
- Appendix 175
- Heat pump 175
- Piping diagrams si04 807 175
- Rx20 25gv1b arx20 25gv1b 175
- Rx35gv1b arx35gv1b 175
- Appendix 165 176
- Ftk20 25 35gv1b ftx20 25 35gv1b atx20 25 35gv1b 176
- Indoor units 176
- Outdoor units 176
- Rk20 25 35gv1b rx20 25 35gv1b arx20 25 35gv1b 176
- Si04 807 wiring diagrams 176
- Wiring diagrams 176
- Numerics 178
- Drawings flow charts 182
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