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Daikin RS60BVMB [130/170] Removal of the pcb
![Daikin RS60BVMB [130/170] Removal of the pcb](/views2/1780105/page130/bg82.png)
Si06-305 Indoor Unit
Removal Procedure 121
1.4 Removal of the PCB
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work
Step Procedure Points
1
Dismount the fixing
screw to remove PCBs
from the electrical box.
Display PCB
2
Illustration shows the
control PCB (indoor
unit).
Содержание
- Inverter pair floor standing type b series 1
- Manual 1
- Service 1
- Si06 305 1
- Inverter pair inverter pair inverter pair inverter pair floor standing type floor standing type floor standing type floor standing type b series b series b series b series 2
- Control specification 9 3
- Function of main structural parts 6 3
- Functions 3
- Introduction v 3
- Main functions 4 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 3
- Part 4 function and control 3 3
- Printed circuit board connector wiring diagram 3
- Specifications 3
- Table of contents 3
- Caution for diagnosis 0 2 problem symptoms and measures 1 3 service check function 2 4
- Checks 04 4
- Instruction 5 4
- Part 5 system configuration 3 4
- Part 6 service diagnosis 9 4
- System configuration 4 4
- Troubleshooting 3 4
- Drawings flow charts v 5
- Index i 5
- Indoor unit 14 5
- Outdoor unit 27 5
- Part 7 removal procedure 13 5
- Part 8 appendix 49 5
- Piping diagrams 50 5
- Wiring diagrams 53 5
- Caution in repair 6
- Introduction 6
- Safety cautions 6
- Warning 6
- Caution 7
- Cautions regarding products after repair 7
- Warning 7
- Caution 8
- Inspection after repair 8
- Warning 8
- Caution 9
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 9
- Using icons 9
- Using icons list 9
- Warning 9
- Part 1 list of functions 10
- Functions 11
- Part 2 specifications 12
- Cooling only 13
- Specifications 13
- Specifications si06 305 13
- V 50hz 13
- Heat pump 14
- Si06 305 specifications 14
- Specifications 5 14
- V 50hz 14
- Part 3 printed circuit board connector wiring diagram 16
- Fvks 25 35 b fvxs 25 35 b series 17
- Printed circuit board connector wiring diagram 17
- Rks 25 35 bvmb rxs 25 35 bvmb 19
- Detail of pcb 1 20
- Detail of pcb 2 20
- Control specification 9 22
- Function of main structural parts 6 22
- Main functions 4 22
- Part 4 function and control 22
- Part 4 part 4 part 4 part 4 function and control function and control function and control function and control 22
- Additional control parameters 23
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 23
- Forced cooling operation 23
- Frequency principle 23
- Frequency restrictions 23
- Initial settings 23
- 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 23
- 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 23
- Main functions 23
- The difference between the room temperature and the set temperature 23
- The load condition of the operating indoor unit 23
- The target frequency is adapted by additional parameters in the following cases 23
- 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 24
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 24
- Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor air temperature is 0 c 24
- Forced cooling operation for more information refer to forced operation mode on page 24
- Frequency limits the following table shows the functions that define the minimum and maximum frequency 24
- Inverter features the inverter provides the following features 24
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature 24
- The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load 24
- Auto swing the following table explains the auto swing process for heating and cooling 25
- Flap control 25
- Louvres the louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution 25
- Wide angle flap the large flaps send a large volume of air all over the room the flap provides an optimum control in cooling heating and dry mode 25
- Air conditioner automatically decides the appropriate blowing pattern depending on the operating mode situation 26
- Air flow selection 26
- During dry mode so that cold air does not come into direct contact with people air is blown upper air outlet 26
- Regardless of the operating mode or situation air blows from the upper air outlet 26
- Use this switch when you do not want air coming out of the lower air outlet while sleeping etc 26
- When setting the air flow selection switch to 26
- When setting the air outlet selection switch to 26
- Automatic air flow control for cooling 27
- Automatic air flow control for heating 27
- Control mode the airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature this is done through phase control and hall ic control 27
- Fan speed control for indoor units 27
- For more information about hall ic refer to trouble shooting for fan motor on page 77 27
- Function and control 27
- Fvk x s 740 760 rpm during powerful operation 970 rpm 27
- H hh powerful 27
- Ll cooling thermostat off sl silent 27
- Main functions si06 305 27
- Note 1 during powerful operation fan operate h tap 50 90 rpm 2 fan stops during defrost operation 27
- Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 27
- Step cooling heating dry mode lll heating thermostat off 27
- The following drawing explains the principle for fan speed control for heating 27
- The following drawing explains the principle of fan speed control for cooling 27
- Within this range the airflow rate is automatically controlled when the airflow adjusting button is set to automatic 27
- 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 28
- Programme dry function 28
- Programme dry function removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and air flow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode 28
- Automatic operation 29
- Night set mode 30
- Home leave operation 31
- Details of the control when powerful button is pushed in each operation mode the fan speed setting temperature will be converted to the following states in a period of twenty minutes 32
- Ex powerful operation in cooling mode 32
- Inverter powerful operation 32
- 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 32
- Tpf 20min 32
- Air purifying filter 33
- Hot start function 33
- Mold proof air filter 33
- On off button on indoor unit 33
- Other functions 33
- Photocatalytic deodorizing filter 33
- Signal receiving sign 33
- Auto restart function 34
- Self diagnosis digital display 34
- Cooling only model 35
- Function and control 35
- Function of main structural parts 35
- Function of main structural parts si06 305 35
- Heat pump model 35
- Main structural parts 35
- Function of thermistor 36
- Heat pump model 36
- Cooling only model 37
- Control specification 38
- Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting 38
- For cooling only model there are following models stop and cooling including drying 38
- Function and control 29 38
- Mode hierarchy 38
- Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation 38
- 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 38
- Si06 305 control specification 38
- Frequency control 39
- D signal 1 p control calculate 40
- D signal and is used for frequency command 40
- D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the 40
- D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 i control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the 40
- D value is large increase the frequency 3 limit of frequency variation width when the difference between input current and input current drooping value is less than 1 a the frequency increase width must be limited 4 frequency management when other controls are functioning 40
- D value is small lower the frequency when the 40
- D value obtaining the fixed 40
- D value of the indoor unit and the q value of the indoor unit q value indoor unit output determined from indoor unit volume air flow rate and other factors 40
- D value when the 40
- Determine lower limit frequency 40
- For limiting lower limit frequency management is carried out only when the frequency rises 5 upper and lower limit of frequency by pi control the frequency upper and lower limits are set depending on indoor unit when low noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit the upper limit frequency must be lowered than the usual setting 40
- Frequency initial setting 40
- Indoor frequency command 40
- Outline when starting the compressor or when conditions are varied due to the change of the room the frequency must be initialized according to the 40
- Pi control determine frequency up down by 40
- Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep 4 determine prohibited frequency 40
- Th off thermostat off 40
- There is a certain prohibited frequency such as a power supply frequency 40
- When frequency is drooping frequency management is carried out only when the frequency droops 40
- 3 minutes stand by 41
- Compressor protection function 41
- Controls at mode changing start up 41
- Four way valve operation compensation 41
- Four way valve switching 41
- Preheating operation 41
- Discharge pipe control 42
- Input current control 42
- Freeze up protection control 43
- Heating peak cut control 43
- Fan control 44
- Moisture protection function 1 securing of differential pressure and blown air temperature 44
- Actual constant 45
- Common setting for 25 35 class 45
- Detail 45
- Doa outdoor air temperature cgc compressor guard for cooling cgw compressor guard for heating fcg frequency guard for compressor protection 45
- Moisture protection function 2 45
- Operation stop depending on the outdoor air temperature compressor operation turns off under the conditions that the system is in cooling operation and outdoor air temperature is below 10 c 45
- Outline in order to obtain the dependability of the compressor the compressor must be stopped according to the conditions of the temperature of the outdoor air and outdoor heat exchanger 45
- 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 45
- Defrost control 46
- Detail conditions for starting defrost the starting conditions must be made with the outdoor air temperature and heat exchanger temperature under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or ending the defrosting conditions for canceling defrost the judgment must be made with heat exchanger temperature 4 c 22 c 46
- Function and control 37 46
- 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 46
- Si06 305 control specification 46
- Control specification si06 305 47
- Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 47
- Electronic expansion valve control 47
- Function and control 47
- 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 47
- Disconnection of the discharge pipe thermistor 48
- Fully closing with power on 48
- High temperature of the discharge pipe 48
- Opening limit 48
- Pressure equalization control 48
- Starting operation control 48
- Control when frequency is changed 49
- Target discharge pipe temperature control 49
- Detection of over load and over current 50
- Insufficient gas control 50
- Malfunctions 50
- Sensor malfunction detection 50
- Additional function 51
- Compressor operating frequency is increased to p1 max max hz of operating room and outdoor unit airflow rate is increased 51
- Detail forced cooling 51
- Forced operation mode 51
- Outline forced operating mode includes only forced cooling 51
- Power supply voltage is detected each time equipment operation starts 51
- Powerful operation mode 51
- Voltage detection function 51
- Instruction 5 52
- Part 5 part 5 part 5 part 5 system configuration system configuration system configuration system configuration 52
- Part 5 system configuration 52
- System configuration 4 52
- Operation instructions 53
- System configuration 53
- Caution 54
- Instruction 54
- Safety precautions 54
- Warning 54
- Consider nuisance to your neighbours from noises 55
- Electrical work 55
- Installation site 55
- Instruction si06 305 55
- System configuration 55
- System relocation 55
- Caution 56
- I indoor unit 56
- I opening the front grille 56
- Names of parts 56
- I outdoor unit 57
- Iiii outdoor unit 57
- Indoor unit 57
- Arc433a5 a6 58
- I remote controller 58
- I to set the batteries 59
- Preparation before operation 59
- Attention 60
- Choose a place from where the sig nals reach the unit 60
- Fix the holder to a wall a pillar etc with the screws supplied with the holder 60
- I to fix the remote controller holder on the wall 60
- I to operate the remote controller 60
- Place the remote controller in the remote controller holder 60
- Preparation before operation 60
- Careful not to cool heat the room too much keeping the temperature setting at a moderate level helps save energy 61
- Clogged air filters cause inefficient operation and waste energy clean them once in about every two weeks 61
- Cover windows with a blind or a curtain blocking sunlight and air from outdoors increases the cooling heating effect 61
- I to set the clock 61
- I turn the breaker on 61
- If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 61
- Instruction si06 305 61
- Operation outside this humidity or temperature range may cause a safety device to disable the system 61
- Press clock button 61
- Press timer setting button to set the clock to the present time 61
- Silent 61
- System configuration 61
- The air conditioner always consumes 15 35 watts of electricity even while it is not operating 61
- Use the air conditioner in the following conditions 61
- Auto dry cool heat fan operation 62
- I to change the temperature setting 62
- I to start operation 62
- I to stop operation 62
- I to change the air flow direction 63
- I to change the air flow rate setting 63
- Press fan setting button 63
- Adjusting the air flow direction 64
- Attention 64
- I to adjust the horizontal blade flap 64
- I to adjust the vertical blades louvres 64
- Notes on flap and louvers angle 64
- Caution 65
- I air flow selection 65
- When setting the air flow selection switch to 65
- When setting the air outlet selection switch to 65
- I to cancel powerful operation 66
- I to start powerful operation 66
- Powerful operation 66
- Outdoor unit silent operation 67
- Before using home leave operation 68
- Home leave operation 68
- I to cancel home leave operation 68
- I to start home leave operation 68
- To set the temperature and air flow rate for home leave operation 68
- I useful in these cases 69
- I what s the home leave operation 69
- Use as a favorite mode 69
- Use as an energy saving mode 69
- I to cancel the off timer operation 70
- I to use off timer opera tion 70
- Timer operation 70
- Attention 71
- I to cancel on timer operation 71
- I to combine on timer and off timer 71
- I to use on timer operation 71
- Press cancel button 71
- Press on timer button 71
- Press on timer button again 71
- Press timer setting button until the time setting reaches the point you like 71
- Care and cleaning 72
- Caution 72
- I front grille 72
- I indoor unit outdoor unit and remote controller 72
- Filters 73
- I air filter 73
- I air purifying filter green 73
- Maintenance 73
- Photocatalytic deodorizing filter gray 73
- Replacement 73
- Air purifying filter with frame 74
- Air purifying filter without frame 74
- Clean the air filters and set them again 74
- Dispose of old air filters as non burnable waste and 74
- Filters as burnable waste 74
- I before a long idle period 74
- Operate the fan only for several hours on a fine day to dry out the inside 74
- Photocatalytic deodorizing filter with frame 74
- Photocatalytic deodorizing filter without frame 74
- Press mode button and select fan operation 74
- Press on off button and start operation 74
- Take out batteries from the remote controller 74
- The paper material is torn or broken during cleaning 74
- Turn off the breaker for the room air conditioner 74
- Case explanation 75
- These cases are not troubles 75
- Trouble shooting 75
- Case check 76
- Check again 76
- Call the service shop immediately 77
- Disposal requirements 77
- I the power cord is abnormally hot or damaged i an abnormal sound is heard during operation i the safety breaker a fuse or the earth leakage breaker cuts off the operation frequently i a switch or a button often fails to work properly i there is a burning smell i water leaks from the indoor unit 77
- Turn the breaker off and call the service shop 77
- Warning 77
- We recommend periodical maintenance 77
- Caution for diagnosis 0 2 problem symptoms and measures 1 3 service check function 2 78
- Checks 04 78
- Part 6 part 6 part 6 part 6 service diagnosis service diagnosis service diagnosis service diagnosis 78
- Part 6 service diagnosis 78
- Troubleshooting 3 78
- Caution for diagnosis 79
- Problem symptoms and measures 80
- Arc433 series 81
- In the arc433a series the temperature display sections on the main unit indicate corresponding codes 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 81
- 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 81
- Press the timer cancel button repeatedly until a continuous beep is produced 81
- Service check function 81
- The code indication changes in the sequence shown below and notifies with along beep 81
- Displayed only when system down occurs 82
- Error codes and description 82
- Troubleshooting 82
- Indoor unit pcb abnormality 83
- Freeze up protection control or high pressure control 84
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 85
- Check no refer to p 07 85
- Note if the outdoor air temperature is below 10 c in the cooling mode the system may get interrupted with error a5 displayed the system will be reset itself but this stop will be put in the error history memory 85
- Service diagnosis 85
- Troubleshooting 85
- Troubleshooting si06 305 85
- Fan motor dc motor or related abnormality 86
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 87
- Check no 1 refer to p 04 87
- Check no 2 refer to p 04 87
- Service diagnosis 87
- Troubleshooting 87
- Troubleshooting si06 305 87
- Thermistor or related abnormality indoor unit 88
- Check no refer to p 04 89
- Detection error by broken relay harness or disconnected connector 89
- Detection error due to defective pcb 2 89
- Foreign substance in blow port 89
- Malfunction decision conditions 89
- Method of malfunction detection 89
- Remote controller display 89
- Service diagnosis 89
- Shutter drive motor defective 89
- Shutter drive motor shutter limit switch abnormality 89
- Shutter itself deformed warped 89
- Shutter limit switch defective 89
- Shutter s sealing material too thick 89
- Supposed causes 89
- The shutter open close performance is detected by the limit switch attached on its structure in this way the shutter drive motor and the shutter limit switch are checked for failure 89
- Troubleshooting 89
- Troubleshooting si06 305 89
- When the shutter is open the limit switch is closed or vice versa 89
- Signal transmission error between indoor and outdoor units 90
- A compressor overload is detected through compressor ol 91
- Check no 1 refer to p 10 91
- Check no refer to p 05 91
- Check no refer to p 06 91
- Check no refer to p 07 91
- Electronic expansion valve defective 91
- Four way valve malfunctioning 91
- If the compressor ol is activated twice the system will be shut down 91
- Malfunction decision conditions 91
- Method of malfunction detection 91
- Ol activation compressor overload 91
- Outdoor unit pcb defective 91
- Refrigerant shortage 91
- Remote controller display 91
- Service diagnosis 91
- Stop valve defective 91
- Supposed causes 91
- 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 91
- The operating temperature condition is not specified 91
- Troubleshooting 91
- Troubleshooting si06 305 91
- Water mixed in the local piping 91
- A compressor lock is detected by checking the compressor running condition through the position detection circuit 92
- Clearing condition continuous run for about 5 minutes normal 92
- Compressor lock 92
- Compressor locked 92
- Malfunction decision conditions 92
- Method of malfunction detection 92
- Note if the model doesn t have spm replace the outdoor unit pcb 92
- Remote controller display 92
- Service diagnosis 83 92
- Si06 305 troubleshooting 92
- Supposed causes 92
- The system judges the compressor lock and cannot operation with position detection within 15 seconds after start up 92
- The system judges the compressor lock and stops due to over current 92
- The system will be shut down if the error occurs 16 times 92
- Troubleshooting 92
- An input over current is detected by checking the input current value being detected by ct with the compressor running 93
- Check no refer to p 08 93
- Error detection due to outdoor unit pcb 93
- Input over current detection 93
- Malfunction decision conditions 93
- Method of malfunction detection 93
- Note if the model doesn t have spm replace the outdoor unit pcb 93
- Over current due to compressor failure 93
- Over current due to defective outdoor unit pcb 93
- Over current due to defective power transistor 93
- Over current due to short circuit 93
- Remote controller display 93
- Service diagnosis 93
- Supposed causes 93
- The following ct input with the compressor running continues for 2 seconds cooling above 11a heating above 13a 93
- Troubleshooting 93
- Troubleshooting si06 305 93
- Four way valve abnormality 94
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 95
- Check no 1 refer to p 10 95
- Check no refer to p 06 95
- Check no refer to p 07 95
- Service diagnosis 95
- Troubleshooting 95
- Troubleshooting si06 305 95
- Discharge pipe temperature control 96
- A compressor startup failure is detected by checking the compressor running condition through the position detection circuit 97
- Check no 3 refer to p 11 97
- Clearing condition continuous run for about 5 minutes normal 97
- Compressor itself defective 97
- Compressor relay cable disconnected 97
- Input voltage out of specification 97
- Malfunction decision conditions 97
- Method of malfunction detection 97
- Outdoor unit pcb defective 97
- Position sensor abnormality 97
- Remote controller display 97
- Service diagnosis 97
- Stop valve closed 97
- Supposed causes compressor relay cable disconnected 97
- The compressor fails to start in about 15 seconds after the compressor run command signal is sent 97
- The system will be shut down if the error occurs 16 times 97
- Troubleshooting 97
- Troubleshooting si06 305 97
- Ct or related abnormality 98
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 99
- Check no 2 refer to p 11 99
- Note if the model doesn t have spm replace the outdoor unit pcb 99
- Service diagnosis 99
- Troubleshooting 99
- Troubleshooting si06 305 99
- P4 j3 j6 h9 100
- Thermistor or related abnormality outdoor unit 100
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 101
- Check no refer to p 07 101
- P4 radiation fin thermistor j3 discharge pipe temperature thermistor j6 outdoor unit heat exchanger temperature thermistor h9 outdoor air temperature thermistor 101
- Service diagnosis 101
- Troubleshooting 101
- Troubleshooting si06 305 101
- Electrical box temperature rise 102
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 103
- Check no refer to p 07 103
- Check no refer to p 08 103
- Check no refer to p 09 103
- Service diagnosis 103
- Troubleshooting 103
- Troubleshooting si06 305 103
- Radiation fin temperature rise 104
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 105
- Check no refer to p 07 105
- Check no refer to p 08 105
- Check no refer to p 09 105
- Service diagnosis 105
- Troubleshooting 105
- Troubleshooting si06 305 105
- Output over current detection 106
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 107
- Check no 3 refer to p 11 107
- Check no refer to p 08 107
- Note if the model doesn t have spm replace the outdoor unit pcb 107
- Service diagnosis 107
- Troubleshooting 107
- Troubleshooting si06 305 107
- Insufficient gas 108
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 109
- Check no refer to p 05 109
- Check no refer to p 07 109
- Service diagnosis 109
- Troubleshooting 109
- Troubleshooting si06 305 109
- An abnormal voltage rise is detected by checking the specified over voltage detection circuit 110
- An over voltage signal is fed from the over voltage detection circuit to the microcomputer the voltage is over 400v 110
- Clearing condition continuous run for about 60 minutes normal 110
- Malfunction decision conditions 110
- Method of malfunction detection 110
- Note if the model doesn t have spm replace the outdoor unit pcb 110
- Over voltage detection 110
- Over voltage detection circuit defective 110
- Pam control part s defective 110
- Remote controller display 110
- Service diagnosis 101 110
- Si06 305 troubleshooting 110
- Supply voltage not as specified 110
- Supposed causes 110
- The system will be shut down if the error occurs 5 times 110
- Troubleshooting 110
- High pressure control in cooling 111
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 112
- Check no refer to p 05 112
- Check no refer to p 07 112
- Check no refer to p 08 112
- Check no refer to p 09 112
- Service diagnosis 103 112
- Si06 305 troubleshooting 112
- Troubleshooting 112
- Check no 1 1 check connector connection 2 check motor power supply voltage output pins 4 7 and 4 8 3 check motor control voltage pins 4 3 4 check rotation command voltage output pins 4 2 5 check rotation pulse input pins 4 1 113
- Check no 2 1 check connector connection 2 check motor control voltage output pins 2 1 113
- Check no remove the front grille the limit switch is located at the left side of the drain pan assembly check the continuity of the switch connection 113
- Checks 113
- Fan motor connector output check 113
- How to check 113
- Limit switch continuity check 113
- The shutter can be opened and closed with hand keep the shutter open and closed all the way for each continuity check steps 113
- Electronic expansion valve check 114
- Check no 115
- Checks si06 305 115
- Four way valve performance check 115
- Service diagnosis 115
- Check no remove the connectors of the thermistors on the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the graph and the table below 116
- Thermistor resistance check 116
- Check no 117
- Checks si06 305 117
- Discharge pressure check 117
- Installation condition check 117
- Service diagnosis 117
- Check no 118
- Outdoor unit fan system check with ac motor 118
- Service diagnosis 109 118
- Si06 305 checks 118
- Check no 0 measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance 119
- Check no 1 119
- Check to see if the power supply waveform is a sine wave fig 119
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 119
- Checks si06 305 119
- Fig fig 119
- Inverter units refrigerant system check 119
- Power supply waveforms check 119
- Service diagnosis 119
- Before measuring operate the unit for several minutes then shut down the operation by force using the circuit breaker 120
- Capacitor voltage check 120
- Check no 3 120
- 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 120
- 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 120
- Note check to make sure that the voltage between the terminal of power transistor and is approx 0 volt before checking power transistor 120
- Note the charge section is applied with high voltage therefore exercise caution during measurement to prevent electric shock 120
- Power transistor check 120
- Since capacitor and are connected to power transistor and capacitor voltage can be measured at the power transistor and terminals 120
- 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 120
- Hall ic check 121
- Indoor unit 14 122
- Outdoor unit 27 122
- Part 7 part 7 part 7 part 7 removal procedure removal procedure removal procedure removal procedure 122
- Part 7 removal procedure 122
- Indoor unit 123
- Removal of the air filter front panel 123
- Press down the two hooks located at left and right side upper parts of the air filter then bend slightly the air filter to remove it 124
- Unhook the chain 124
- Disengage the three hooks on the bottom of the front panel 125
- Mounting screw m4 16 125
- Remove the four screws to take out the front grille 125
- Removal of the horizontal blade 126
- Removal of the electrical box 127
- Illustration shows parts in the electrical box 129
- Mounting screw m4 16 129
- To remove the electrical box dismount the two fixing screws and pull out the box forward 129
- Removal of the pcb 130
- Removal of the heat exchanger 132
- Removal of the fan rotor fan motor 134
- Outdoor unit 136
- Removal of external casing 136
- Removal of bellmouth and left side plate 138
- Removal of pcb and electrical box 139
- Disconnect the three wires from the pcb 141
- The pcb has eight hooks 141
- Undo the eight hooks and the pcb can be disengaged 141
- Lift and remove the electrical box 143
- Remove the molded interconnect device mid 143
- Remove the one screw fixing the mid 143
- Slide the mid upward and release 144
- Removal of propeller fan and fan motor 145
- Remove the fan motor 146
- Removal of compressor noise absorption pad 147
- Procedure warning be sure to turn off all power supplies at least 10 min before disassembling work 149
- Pull the partition plate upward to remove 149
- Removal of partition plate and reactor 149
- Remove the two screws fixing the partition plate 149
- Slide the reactor assembly this side and release 151
- Removal of four way valve and motor valve 152
- Removal of compressor 155
- Remove the four way valve and the motor valve also so as not to be burnt out 156
- Remove the nut by an open end wrench 156
- The mounting nut for the compressor is only one piece 156
- Part 8 appendix 158
- Fvks25bvmb fvks35bvmb fvxs25bvmb fvxs35bvmb 159
- Indoor units 159
- Piping diagrams 159
- Appendix 151 160
- Outdoor units 160
- Rks25bvmb 160
- Rks35bvmb 160
- Si06 305 piping diagrams 160
- Appendix 161
- Piping diagrams si06 305 161
- Rxs25bvmb 161
- Rxs35bvmb 161
- Appendix 153 162
- Fvks25bvmb fvks35bvmb fvxs25bvmb fvxs35bvmb 162
- Indoor units 162
- Si06 305 wiring diagrams 162
- Wiring diagrams 162
- Appendix 163
- Outdoor units 163
- Rks25bvmb rks35bvmb cooling only 163
- Rxs25bvmb rxs35bvmb heat pump 163
- Wiring diagrams si06 305 163
- Index index index index 164
- Numerics 164
- Drawings flow charts 168
- Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 168
- For further improvement specifications or designs are subject to change without prior notice 170
- Printed in japan 0 6 2003 ak cos 170
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