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Daikin FVXG25K2V1B [12/147] Holding functions no functions
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Functions SiBE061121_A
2 List of Functions
1. Functions
Category Functions
FVXG25/35K2V1B
RXG25/35K2V1B
FVXG50K2V1B
RXG50K2V1B
Category Functions
FVXG25/35K2V1B
RXG25/35K2V1B
FVXG50K2V1B
RXG50K2V1B
Basic
Function
Inverter (with inverter power control)
zz
Health &
Clean
Air-purifying filter — —
Operation limit for cooling (°CDB)
10
~ 46
10
~ 46
Photocatalytic deodorizing filter — —
Operation limit for heating (°CWB)
–15
~ 18
–15
~ 18
Air-purifying filter with photocatalytic
deodorizing function
——
PAM control
zz
Titanium apatite photocatalytic
air-purifying filter
zz
Standby electricity saving
z
—
Compressor Oval scroll compressor — — Air filter (prefilter)
zz
Swing compressor
zz
Wipe-clean flat panel — —
Rotary compressor — — Washable grille — —
Reluctance DC motor
zz MOLD PROOF operation — —
Comfortable
Airflow
Power-airflow flap — — Good-sleep cooling operation — —
Power-airflow dual flaps — — Timer WEEKLY TIMER operation
zz
Wide-angle louvers zz 24-hour ON/OFF TIMER zz
Vertical auto-swing (up and down)
zz
NIGHT SET mode
zz
Horizontal auto-swing (right and left) — — Worry Free
“Reliability &
Durability”
Auto-restart (after power failure) zz
3-D airflow — — Self-diagnosis (digital, LED) display zz
Comfort
Control
Auto fan speed
zz
Wiring error check function — —
Indoor unit quiet operation
zz
Anti-corrosion treatment of outdoor
heat exchanger
zz
NIGHT QUIET mode (automatic) — —
OUTDOOR UNIT QUIET operation
(manual)
zz
Flexibility
Multi-split / split type compatible indoor
unit
zz
INTELLIGENT EYE operation — — H/P, C/O compatible indoor unit — —
Quick warming function (preheating
operation)
zz Flexible power supply correspondence — —
Hot-start function
zz Chargeless 10 m 10 m
Automatic defrosting
zz
Either side drain (right or left) — —
Operation Automatic operation
zz
Power selection — —
RADIANT operation
zzRemote
Control
5-room centralized controller (option) zz
Program dry operation zz
Remote control adaptor (normal open
pulse contact) (option)
zz
Fan only zz
Lifestyle
Convenience
New POWERFUL operation
(non-inverter)
——
Remote control adaptor (normal open
contact) (option)
zz
Inverter POWERFUL operation zz
DIII-NET compatible (adaptor) (option) zz
Priority-room setting — —
COOL / HEAT mode lock — — Remote
Controller
Wireless
zz
HOME LEAVE operation — — Wired (option) zz
ECONO operation zz
Indoor unit [ON/OFF] button
zz
Signal receiving sign zz
R/C with back light zz
Temperature display — —
Note:
z
: Holding Functions
— : No Functions
Содержание
- Floor standing type k series 1
- Inverter pair 1
- Manual 1
- Service 1
- Sibe061121_a 1
- Heat pump 2
- Indoor unit 2
- Inverter pair floor standing type k series 2
- Outdoor unit 2
- Function of thermistor 9 3 control specification 0 3
- Functions 3
- Indoor unit 0 2 outdoor unit 2 3
- Introduction v 3
- Main functions 8 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 7 3
- Specifications 3
- Table of contents 3
- Check 06 4
- Fvxg25 35 50k2v1b 4 4
- Part 5 remote controller 3 4
- Part 6 service diagnosis 6 4
- Problem symptoms and measures 9 3 service check function 0 4 troubleshooting 3 4
- Troubleshooting with led 8 4
- Part 7 trial operation and field settings 18 5
- Part 8 appendix 28 5
- Piping diagrams 29 5
- Pump down operation 19 2 forced cooling operation 20 3 trial operation 22 4 field settings 23 5
- Removal procedure booklet no 35 5
- Silicon grease on power transistor diode bridge 27 5
- Wiring diagrams 32 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
- Functions 11
- Part 1 list of functions 11
- Functions 12
- Functions sibe061121_a 12
- Holding functions no functions 12
- List of functions 12
- Holding functions no functions 13
- List of functions 3 13
- Sibe061121_a functions 13
- Part 2 specifications 14
- Specifications 14
- Hz 220 230 240 v 15
- Sibe061121_a specifications 15
- Specifications 15
- Specifications 5 15
- Hz 220 230 240 v 16
- Specifications 16
- Specifications sibe061121_a 16
- Hz 220 230 240 v 17
- Sibe061121_a specifications 17
- Specifications 7 17
- Hz 220 230 240 v 18
- Specifications 18
- Specifications sibe061121_a 18
- Indoor unit 0 2 outdoor unit 2 19
- Part 3 printed circuit board connector wiring diagram 19
- Indoor unit 20
- 25 35 class 22
- Outdoor unit 22
- Rxg50k2v1b 24
- Rxg50k3v1b 25
- Function of thermistor 9 3 control specification 0 27
- Main functions 8 27
- Part 4 function and control 27
- Frequency principle 28
- Main functions 28
- Temperature control 28
- Comfortable air conditioning a fine adjustment is integrated to keep the room temperature constant 29
- Drawing of inverter the following drawing shows a schematic view of the inverter principle 29
- Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 29
- Even during extreme cold weather high capacity is achieved it is maintained even when the outdoor temperature is 2 c 29
- Forced cooling operation refer to page 120 for detail 29
- Frequency limits the following functions regulate the minimum and maximum frequency 29
- Inverter features the inverter provides the following features 29
- Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables to reach the set temperature quickly 29
- The regulating capacity can be changed according to the changes in the outdoor temperature and cooling heating load 29
- Airflow direction control 30
- Fan speed control for indoor unit 31
- Indoor electronic expansion valve motor operated valve control 32
- Radiant operation 32
- Indoor unit fan control 33
- Radiant operation and optional function 33
- Some optional function cannot be used with radiant 1 or radiant 2 at the same time 33
- The movement of the indoor unit fan is different whether in radiant 1 or radiant 2 33
- Detail the microcomputer automatically sets the temperature and airflow rate the difference between the room thermistor temperature at start up and the target temperature is divided into two zones then the unit operates in an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level 34
- Outline program dry operation removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and airflow rate the temperature adjustment and fan setting buttons are inoperable 34
- Program dry operation 34
- Y 0 ºc 34
- Zone a thermostat off 34
- Zone b zone b 34
- Zone c thermostat on 34
- Automatic operation 35
- Detail thermostat off condition 36
- Function and control 36
- Main functions sibe061121_a 36
- Outline thermostat control is based on the difference between the room thermistor temperature and the target temperature 36
- Refer to temperature control on page 18 for detail 36
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating radiant 10 seconds 36
- The operation turns on in any zones except a 36
- The system resumes from defrost control in any zones except a 36
- The temperature difference is in the zone a 36
- The temperature difference returns to the zone c after being in the zone a 36
- Thermostat control 36
- Thermostat on condition 36
- Detail the night set mode continues operation at the target temperature for the first one hour then automatically raises the target temperature slightly in the case of cooling or lowers it slightly in the case of heating this prevents excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions and also conserves electricity 37
- Function and control 27 37
- Night set mode 37
- Outline when the off timer is set the night set mode is automatically activated the night set mode keeps the airflow rate setting 37
- Sibe061121_a main functions 37
- Econo operation 38
- 50 rpm 39
- Detail when the powerful button is pressed the fan speed and target temperature are converted to the following states for 20 minutes 39
- Ex powerful operation in cooling 39
- Inverter powerful operation 39
- Note powerful operation is only available in radiant 1 radiant operation with heating it is not available in radiant 2 radiant operation only 39
- 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 39
- Clock setting 40
- Detail 41
- Function and control 31 41
- Outline up to 4 timer settings can be saved for each day of the week up to 28 settings in total the 3 items on off temperature and time can be set 41
- Sibe061121_a main functions 41
- Using in these cases of weekly timer 41
- Weekly timer operation 41
- Press to select the desired day of the week and reservation number 42
- Press to select the desired mode 42
- To use weekly timer operation 42
- Press to complete the setting 43
- Press to select the desired temperature 43
- Press to select the desired time 43
- C 27 c 44
- Copy copy 44
- Press to complete the setting 44
- Press to confirm the day of the week to be copied 44
- Press to select the destination day of the week 44
- Caution 45
- Press to exit confirming mode 45
- Press to select the day of the week and the reservation number to be confirmed 45
- Press while is displayed on the lcd 45
- Be deleted 46
- Hold for 5 seconds 46
- Hold for 5 seconds while normal display 46
- Press and select blank 46
- Press to select the day of the week and the reservation number to be deleted 46
- Press to select the day of the week to 46
- To delete reservations 46
- Auto restart function 47
- Hot start function 47
- Indoor unit on off button 47
- Other functions 47
- Signal receiving sign 47
- Titanium apatite photocatalytic air purifying filter 47
- Brightness setting of the indoor unit display 48
- Each time you press the brightness button on the remote controller the brightness of the indoor unit display changes to high low or off refer to the operation manual for details 48
- Function and control 48
- Main functions sibe061121_a 48
- Function of thermistor 49
- Control specification 50
- Control specification sibe061121_a 50
- Detail 50
- Function and control 50
- Mode hierarchy 50
- Note unless specified otherwise a dry operation command is regarded as cooling operation and a radiant operation command is regarded as heating operation 50
- Outline air conditioner control has normal operation mode forced operation mode and power transistor test mode for installation and servicing 50
- Frequency control 51
- For limiting lower limit frequency management is carried out only when the frequency rises 52
- Frequency management when other controls are functioning 52
- I control if the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the d value when the d value is low the frequency is lowered when the d value is high the frequency is increased 52
- Indoor frequency command d signal the difference between the room thermistor temperature and the target temperature is taken as the d signal and is used for frequency command 52
- Pi control determine frequency up down by d signal 1 p control the d value is calculated in each sampling time 15 20 seconds and the frequency is adjusted according to its difference from the frequency previously calculated 52
- Th off thermostat off 52
- Upper and lower limit of frequency by pi control the frequency upper and lower limits are set according to the command of the indoor unit when the indoor or outdoor unit quiet operation command comes from the indoor unit the upper limit frequency is lower than the usual setting 52
- When frequency is dropping frequency management is carried out only when the frequency drops 52
- When starting the compressor the frequency is initialized according to the d value and the q value of the indoor unit q value indoor unit output determined from indoor unit volume airflow rate and other factors 52
- Controls at mode changing start up 53
- Four way valve operation compensation 53
- Four way valve switching 53
- Preheating control 53
- 3 minute standby 54
- Compressor protection function 54
- Detail 54
- Discharge pipe temperature control 54
- Outline the discharge pipe temperature is used as the internal temperature of the compressor if the discharge pipe temperature rises above a certain level the upper limit of frequency is set to keep the discharge pipe temperature from rising further 54
- Turning on the compressor is prohibited for 3 minutes after turning it off except when defrosting 54
- When turning the compressor from off to on the upper limit of frequency is set as follows the function is not activated when defrosting 54
- After 2 seconds in this zone the compressor is stopped dropping zone 55
- After this the output frequency is lowered by 2 hz every second until it reaches the keep zone keep zone 55
- Detail 55
- Frequency control in each zone stop zone 55
- Input current control 55
- Limit of the frequency is canceled 55
- Limitation of current dropping and stop value according to the outdoor temperature 55
- Outline the microcomputer calculates the input current while the compressor is running and sets the frequency upper limit from the input current in case of heat pump models this control which is the upper limit control of the frequency takes priority over the lower limit of control of four way valve operation compensation 55
- The current drops when outdoor temperature becomes higher than a certain level depending on the model 55
- The present maximum frequency goes on reset zone 55
- The upper limit of the compressor frequency is defined as operation frequency 2 hz 55
- Detail 56
- Detail the operating frequency limitation is judged with the indoor heat exchanger temperature 56
- Freeze up protection control 56
- Heating peak cut control 56
- Outline during cooling operation the signal sent from the indoor unit controls the operating frequency limitation and prevents freezing of the indoor heat exchanger the signal from the indoor unit is divided into zones 56
- Outline during heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure 56
- Liquid compression protection function 57
- Outdoor fan control 57
- Conditions for canceling defrost the judgment is made with the outdoor heat exchanger temperature b c 58
- Defrost control 58
- Detail conditions for starting defrost 58
- More than a minutes of accumulated time pass after the start of the operation or ending the previous defrosting 58
- Outline defrosting is carried out by the cooling cycle reverse cycle the defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish 58
- The compressor operates for 6 minutes 58
- The starting conditions are determined with the outdoor temperature and the outdoor heat exchanger temperature 58
- The system is in heating operation 58
- Detail the followings are the examples of outdoor electronic expansion valve control which function in each operation mode 59
- Function and control 49 59
- H holding functions no functions 59
- Outdoor electronic expansion valve control 59
- Outline the following items are included in the outdoor electronic expansion valve control outdoor electronic expansion valve is fully closed 1 outdoor electronic expansion valve is fully closed when turning on the power 2 pressure equalizing control open control 1 outdoor electronic expansion valve control when starting operation 2 outdoor electronic expansion valve control when the frequency changes 3 outdoor electronic expansion valve control for defrosting 4 outdoor electronic expansion valve control when the discharge pipe temperature is abnormally high 5 outdoor electronic expansion valve control when the discharge pipe thermistor is disconnected feedback control target discharge pipe temperature control 59
- Sibe061121_a control specification 59
- Control when the frequency changes 60
- Fully closing with power on 60
- High discharge pipe temperature 60
- Opening limit control 60
- Pressure equalizing control 60
- Starting operation control 60
- Control for disconnection of the discharge pipe thermistor 61
- Target discharge pipe temperature control 61
- Detection of overcurrent and overload 62
- Malfunctions 62
- Refrigerant shortage control 62
- Sensor malfunction detection 62
- Fvxg25 35 50k2v1b 4 63
- Part 5 remote controller 63
- 1 radiant operation p 2 64
- Button 64
- Display lcd 64
- Fan setting button 64
- Fvxg25 35 50k2v1b 64
- Fvxg25 35 50k2v1b sibe061121_a 64
- Heat pump model arc466a2 64
- Note refer to the operation manual of applicable model for detail you can download operation manual from distributor s page distributor s page product information operation installation manual url http global daikin com daikin global distributors_admin user_mng login php 64
- On off button 64
- Radian 64
- Reference refer to the following pages for detail 64
- Remote controller 64
- Signal transmitter 64
- Temperature adjustment buttons 64
- Button 65
- Lamp brightness setting butto 65
- Mode button 65
- Note refer to the operation manual of applicable model for detail you can download operation manual from distributor s page distributor s page product information operation installation manual url http global daikin com daikin global distributors_admin user_mng login php 65
- Off timer button 65
- On timer button 65
- Open the front cover 65
- Powerfu 65
- Quiet button 65
- Reference refer to the following pages for detail 65
- Select button 65
- Timer cancel button 65
- Check 06 66
- Part 6 service diagnosis 66
- Problem symptoms and measures 9 3 service check function 0 4 troubleshooting 3 66
- Troubleshooting with led 8 66
- Indoor unit 68
- Outdoor unit 68
- Troubleshooting with led 68
- Problem symptoms and measures 69
- Check method 1 1 when the timer cancel button is held down for 5 seconds 70
- Is displayed on the temperature display screen 70
- Note 1 a short beep or two consecutive beeps indicate non corresponding codes 2 to return to the normal mode hold the timer cancel button down for 5 seconds when the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 not all the error codes are displayed when you cannot find the error code try the check method 2 refer to page 61 70
- Press the timer cancel button repeatedly until a long beep sounds 70
- Service check function 70
- The code indication changes in the sequence shown below 70
- Displayed only when system down occurs 73
- Error codes and description 73
- Troubleshooting 73
- Defective indoor unit pcb 74
- Disconnection of connector 74
- Error code 74
- Error decision conditions the system cannot set the internal settings 74
- Indoor unit pcb abnormality 74
- Method of error detection the system checks if the circuit works properly within the microcomputer of the indoor unit 74
- Note check the following connector 74
- Reduction of power supply voltage 74
- Supposed causes 74
- Troubleshooting 74
- Wrong models interconnected 74
- Check no 1 refer to p 06 75
- Clogged air filter of the indoor unit 75
- Defective indoor heat exchanger thermistor 75
- Defective indoor unit pcb 75
- Dust accumulation on the indoor heat exchanger 75
- Error code 75
- Error decision conditions 75
- Freeze up protection control during cooling operation the freeze up protection control operation halt is activated according to the temperature detected by the indoor heat exchanger thermistor 75
- Freeze up protection control during cooling operation the indoor heat exchanger temperature is below 0 c 75
- Freeze up protection control or heating peak cut control 75
- Heating peak cut control during heating operation the indoor heat exchanger temperature is above 65 c 75
- Heating peak cut control during heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc 75
- Method of error detection 75
- Short circuited air 75
- Supposed causes 75
- Troubleshooting 75
- Fan motor dc motor or related abnormality 76
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 77
- Caution 77
- Check no 2 refer to p 07 77
- Service diagnosis 67 77
- Sibe061121_a troubleshooting 77
- Troubleshooting 77
- Radiant panel temperature rise indoor electronic expansion valve motor operated valve abnormality freeze up protection control 78
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 79
- Caution 79
- Check no 1 refer to p 06 79
- Check no 2 refer to p 08 79
- Service diagnosis 69 79
- Sibe061121_a troubleshooting 79
- Troubleshooting 79
- Thermistor or related abnormality indoor unit 80
- Refrigerant shortage 81
- Closed stop valve 82
- Defective outdoor electronic expansion valve 82
- Disconnection of the discharge pipe thermistor indoor or outdoor heat exchanger thermistor room or outdoor temperature thermistor 82
- If the error repeats the system is shut down 82
- Poor compression performance of compressor 82
- Refrigerant shortage detection iii 25 35 class only when the difference of the temperature is smaller than k c it is regarded as refrigerant shortage 82
- Refrigerant shortage refrigerant leakage 82
- Reset condition continuous run for about 60 minutes without any other error 82
- Supposed causes 82
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 83
- Caution 83
- Check no 1 refer to p 06 83
- Check no 2 refer to p 08 83
- Service diagnosis 73 83
- Sibe061121_a troubleshooting 83
- Troubleshooting 83
- Low voltage detection or over voltage detection 84
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 85
- Service diagnosis 75 85
- Sibe061121_a troubleshooting 85
- Troubleshooting 85
- Signal transmission error between indoor unit and outdoor unit 86
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 87
- Caution 87
- Check no 1 refer to p 07 87
- Service diagnosis 77 87
- Sibe061121_a troubleshooting 87
- Troubleshooting 87
- Signal transmission error on outdoor unit pcb rxg50k2v1b only 88
- Defective indoor unit pcb 89
- Defective outdoor unit pcb 89
- Error code 89
- Error decision conditions the pair type and multi type are interconnected 89
- Method of error detection the supply power is detected for its requirements different from pair type and multi type by the indoor outdoor transmission signal 89
- Supposed causes 89
- Troubleshooting 89
- Unspecified voltage between indoor unit and outdoor unit 89
- Wrong indoor unit pcb or outdoor unit pcb mounted 89
- Wrong models interconnected 89
- Wrong wiring of connecting wires 89
- Broken harness between pcbs 90
- Defective outdoor unit pcb 90
- Error code 90
- Error decision conditions 90
- Method of error detection 90
- Momentary fall of voltage 90
- Momentary power failure 90
- Outdoor unit pcb abnormality 90
- Supposed causes 90
- The microprocessor program runs out of control 90
- The system checks if the microprocessor is working in order 90
- The system checks if the zero cross signal comes in properly 90
- The zero cross signal is not detected 90
- Troubleshooting 25 35 class rxg50k3v1b 90
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 91
- Service diagnosis 81 91
- Sibe061121_a troubleshooting 91
- Troubleshooting rxg50k2v1b 91
- Ol activation compressor overload 92
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 93
- Caution 93
- Check no 1 refer to p 06 93
- Check no 2 refer to p 08 93
- Check no 3 refer to p 09 93
- Check no 4 refer to p 09 93
- Note ol q1l activating temperature 120 c ol q1l recovery temperature 95 c 93
- Service diagnosis 83 93
- Sibe061121_a troubleshooting 93
- Troubleshooting 93
- A compressor lock is detected by the current waveform generated when applying high frequency voltage to the motor 94
- Check no 5 refer to p 10 94
- Compressor harness disconnected 94
- Compressor lock 94
- Compressor locked 94
- Error code 94
- Error decision conditions 25 35 class 94
- If the error repeats the system is shut down 94
- Method of error detection a compressor lock is detected by checking the compressor running condition through the position detection circuit 94
- Operation stops due to overcurrent 94
- Reset condition continuous run for about 11 minutes without any other error 94
- Reset condition continuous run for about 5 minutes without any other error 94
- Supposed causes 94
- Troubleshooting 94
- Check no 6 refer to p 12 95
- Dc fan lock 95
- Defective fan motor 95
- Defective outdoor unit pcb 95
- Disconnection of the fan motor 95
- Error code 95
- Error decision conditions 95
- Foreign matter stuck in the fan 95
- If the error repeats the system is shut down 95
- Method of error detection an error is determined with the high voltage fan motor rotation speed detected by the hall ic 95
- Reset condition continuous run for about 11 minutes 25 35 class or 5 minutes 50 class without any other error 95
- Supposed causes 95
- The fan does not start in about 15 30 seconds even when the fan motor is running 95
- Troubleshooting 95
- Check no 5 refer to p 10 96
- Check no 7 refer to p 13 96
- Check no 8 refer to p 13 96
- Defective compressor 96
- Defective outdoor unit pcb 96
- Defective power module 96
- Error code 96
- Error decision conditions the current exceeds about 9 5 20 a depending on the model for 2 seconds with the compressor running the upper limit of the current decreases when the outdoor temperature exceeds a certain level 96
- Input overcurrent detection 96
- Method of error detection an input overcurrent is detected by checking the input current value with the compressor running 96
- Outdoor temperature is out of operation range 96
- Short circuit 96
- Supposed causes 96
- Troubleshooting 96
- Four way valve abnormality 97
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 98
- Check no 1 refer to p 06 98
- Check no 3 refer to p 09 98
- Check no 4 refer to p 09 98
- Service diagnosis 98
- Troubleshooting 98
- Troubleshooting sibe061121_a 98
- Check no 1 refer to p 06 99
- Check no 2 refer to p 08 99
- Check no 4 refer to p 09 99
- Defective discharge pipe thermistor defective outdoor heat exchanger thermistor or outdoor temperature thermistor 99
- Defective four way valve 99
- Defective outdoor electronic expansion valve or coil 99
- Defective outdoor unit pcb 99
- Defective stop valve 99
- Discharge pipe temperature control 99
- Error code 99
- Error decision conditions 99
- If the error repeats the system is shut down 99
- If the temperature detected by the discharge pipe thermistor rises above a c the compressor stops 99
- Method of error detection an error is determined with the temperature detected by the discharge pipe thermistor 99
- Refrigerant shortage 99
- Reset condition continuous run for about 60 minutes without any other error 99
- Supposed causes 99
- The error is cleared when the discharge pipe temperature has dropped below b c 99
- Troubleshooting 99
- Water mixed in refrigerant 99
- Check no 1 refer to p 06 100
- Check no 2 refer to p 08 100
- Check no 7 refer to p 13 100
- Check no 8 refer to p 13 100
- Check no 9 refer to p 14 100
- Defective outdoor electronic expansion valve or coil 100
- Defective outdoor fan motor 100
- Defective outdoor heat exchanger thermistor 100
- Defective outdoor unit pcb 100
- Defective stop valve 100
- Dirty outdoor heat exchanger 100
- Error code 100
- Error decision conditions 100
- High pressure control in cooling 100
- Method of error detection high pressure control operation halt frequency drop etc is activated in cooling operation if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit 100
- Supposed causes 100
- The error is cleared when the temperature drops below about 50 c 100
- The installation space is not large enough 100
- The temperature sensed by the outdoor heat exchanger thermistor rises above about 60 65 c depending on the model 100
- Troubleshooting 100
- 35 class rxg50k3v1b 101
- Broken or disconnected harness 101
- Compressor system sensor abnormality 101
- Defective outdoor unit pcb 101
- Error code 101
- Error decision conditions 101
- Method of error detection the system checks the dc current before the compressor starts 101
- Supposed causes 101
- The dc current before compressor start up is out of the range 0 4 v sensor output converted to voltage value 101
- The dc voltage before compressor start up is below 50 v 101
- Troubleshooting 101
- Defective compressor 102
- Defective outdoor unit pcb 102
- Disconnection of compressor harness 102
- Disconnection of reactor 102
- Error code 102
- Error decision conditions 102
- Method of error detection 102
- Rxg50k2v1b 102
- Supposed causes 102
- The compressor current does not run when the compressor starts 102
- The power supply voltage and the dc voltage is obviously low or high 102
- The system checks the compressor current right after the compressor starts 102
- The system checks the power supply voltage and the dc voltage before the compressor starts 102
- Troubleshooting 102
- Position sensor abnormality 103
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 104
- Check no 0 refer to p 14 104
- Check no 5 refer to p 10 104
- Check no 8 refer to p 13 104
- Service diagnosis 104
- Troubleshooting 25 35 class rxg50k3v1b 104
- Troubleshooting sibe061121_a 104
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 105
- Check no 5 refer to p 10 105
- Check no 8 refer to p 13 105
- Service diagnosis 95 105
- Sibe061121_a troubleshooting 105
- Troubleshooting rxg50k2v1b 105
- Dc voltage current sensor abnormality 25 35 class only 106
- Ct or related abnormality rxg50k2v1b only 107
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 108
- Caution 108
- Check no 1 refer to p 15 108
- Check no 5 refer to p 10 108
- Service diagnosis 108
- Troubleshooting 108
- Troubleshooting sibe061121_a 108
- Thermistor or related abnormality outdoor unit 109
- Caution 110
- Check no 1 refer to p 06 110
- Discharge pipe thermistor 110
- Outdoor heat exchanger thermistor 110
- Outdoor temperature thermistor 110
- Service diagnosis 110
- Troubleshooting in case of 110
- Troubleshooting sibe061121_a 110
- Check no 7 refer to p 13 111
- Check no 9 refer to p 14 111
- Defective outdoor fan motor 111
- Defective outdoor unit pcb 111
- Defective radiation fin thermistor 111
- Disconnection of connector 111
- Electrical box temperature rise 111
- Error code 111
- Error decision conditions 111
- Method of error detection an electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off 111
- Short circuit 111
- Supposed causes 111
- The error is cleared when the radiation fin temperature drops below b c 111
- To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above c c and stops when it drops below b c 111
- Troubleshooting 111
- With the compressor off the radiation fin temperature is above a c 111
- Radiation fin temperature rise 112
- 35 class 98 rxg50k2v1b 105 113
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 113
- Caution 113
- Check no 7 refer to p 13 113
- Check no 9 refer to p 14 113
- Note refer to silicon grease on power transistor diode bridge on page 127 for detail 113
- Rxg50k3v1b 85 113
- Service diagnosis 103 113
- Sibe061121_a troubleshooting 113
- Troubleshooting 113
- Output overcurrent detection 114
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 115
- Caution 115
- Check no 2 refer to p 16 115
- Check no 5 refer to p 10 115
- Check no 7 refer to p 13 115
- Check no 8 refer to p 13 115
- Service diagnosis 105 115
- Sibe061121_a troubleshooting 115
- Troubleshooting 115
- Check no 1 disconnect the connectors of the thermistors from the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the table and the graph below 116
- Thermistor resistance check 116
- Check no 1 measure the power supply waveform between no 1 and no 2 on the terminal board and check the waveform disturbance 117
- Check no 2 1 check the connection of connector 2 check the motor power supply voltage output pins 4 7 3 check the motor control voltage pins 4 3 4 check the rotation command voltage pins 4 2 5 check the rotation pulse pins 4 1 117
- Check to see if the power supply waveform is a sine wave fig 117
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 117
- Fan motor connector output check 117
- Fig fig 117
- Power supply waveforms check 117
- Service diagnosis 107 117
- Sibe061121_a check 117
- Electronic expansion valve check 118
- Check no 3 119
- Check no 4 119
- Four way valve performance check 119
- Inverter units refrigerant system check 119
- Service diagnosis 109 119
- Sibe061121_a check 119
- Inverter analyzer check 120
- Check no 6 25 35 class 1 check that the voltage between the pins 10 11 is 15 vdc 2 check if the hall ic generates the rotation pulse 0 15 vdc 4 times between the pins 10 12 10 13 when the fan motor is manually rotated once 122
- Check sibe061121_a 122
- Class make sure that the voltage of 320 30 v is applied 1 set operation off and power off disconnect the connector s70 2 check that the voltage between the pins 4 7 is 320 vdc 3 check that the control voltage between the pins 3 4 is 15 vdc 4 check that the rotation command voltage between the pins 2 4 is 0 15 vdc 5 keep operation off and power off connect the connector s70 6 check whether 2 pulses 0 15 vdc are output at the pins 1 4 when the fan motor is rotated 1 turn by hand 122
- Rotation pulse check on the outdoor unit pcb 122
- Service diagnosis 122
- When the fuse is melted check the outdoor fan motor for proper function if ng in step 2 defective pcb replace the outdoor unit pcb if ng in step 4 defective hall ic replace the outdoor fan motor if ok in both steps 2 and 4 replace the outdoor unit pcb 122
- Check no 7 123
- Check no 8 123
- Discharge pressure check 123
- Installation condition check 123
- Service diagnosis 113 123
- Sibe061121_a check 123
- Main circuit short check 124
- Outdoor fan system check 124
- Capacitor voltage check 125
- 35 class 126
- Check no 2 126
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector 126
- Follow the procedure below to measure resistance between the terminals of the power module and the terminals of the compressor with a multi tester evaluate the measurement results referring to the following table 126
- Note check to make sure that the voltage between and of the power module is approx 0 v before checking 126
- Power module check 126
- Rxg50k2v1b 127
- Rxg50k3v1b 127
- Part 7 trial operation and field settings 128
- Pump down operation 19 2 forced cooling operation 20 3 trial operation 22 4 field settings 23 128
- Silicon grease on power transistor diode bridge 27 128
- Pump down operation 129
- Forced cooling operation 130
- Indoor unit 130
- Outdoor unit 25 35 class 130
- Caution when pressing the switch do not touch the terminal board it has a high voltage and may cause electric shock 131
- Forced cooling operation on off switch 131
- Forced cooling operation on off switch sw1 131
- Outdoor unit rxg50k2v1b 131
- Outdoor unit rxg50k3v1b 131
- R14963 131
- R18725 131
- Screwdriver 131
- Sibe061121_a forced cooling operation 131
- Trial operation and field settings 121 131
- 2 4 5 1 6 132
- Trial operation 132
- Field settings 133
- When 2 units are installed in 1 room 133
- Standby electricity saving 134
- Facility setting jumper cooling at low outdoor temperature 135
- Caution replace the pcb if you accidentally cut a wrong jumper jumpers are necessary for electronic circuit improper operation may occur if you cut any of them 136
- For the location of the jumper and the switch refer to page 1 136
- For the location of the jumper refer to page 10 136
- Indoor unit 136
- Jumper and switch settings 136
- Outdoor unit 136
- Silicon grease on power transistor diode bridge 137
- Part 8 appendix 138
- Piping diagrams 29 138
- Removal procedure booklet no 35 138
- Wiring diagrams 32 138
- Fvxg25 35k2v1b fvxg50k2v1b 139
- Indoor unit 139
- Piping diagrams 139
- Appendix 140
- Outdoor unit 140
- Piping diagrams sibe061121_a 140
- Rxg25 35k2v1b rxg25 35k3v1b 140
- Rxg50k2v1b 140
- Appendix 131 141
- Rxg50k3v1b 141
- Sibe061121_a piping diagrams 141
- Appendix 142
- Fvxg25 35 50k2v1b 142
- Indoor unit 142
- Wiring diagrams 142
- Wiring diagrams sibe061121_a 142
- Appendix 133 143
- Outdoor unit 143
- Rxg25 35k2v1b rxg25 35k3v1b 143
- Rxg50k2v1b 143
- Sibe061121_a wiring diagrams 143
- Appendix 144
- D079016 144
- Field wiring 144
- Indoor 144
- Outdoor 144
- Rxg50k3v1b 144
- Wiring diagrams sibe061121_a 144
- Refer to the following booklets for removal procedure 145
- Removal procedure booklet no 145
- Revision history 146
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