![Daikin FTXS25K3V1B [118/131] Trial operation](/img/pdf.png)
Daikin FTXS25K3V1B [118/131] Trial operation
![Daikin FTXS25K3V1B [118/131] Trial operation](/views2/1251457/page118/bg76.png)
Trial Operation SiBE041134EB
108 Trial Operation and Field Settings
3. Trial Operation
Outline Carry out the trial operation in accordance with the operation manual to ensure that all functions
and parts, such as flap movement, are working properly.
Trial operation should be carried out in either cooling or heating operation.
Detail 1. Measure the power supply voltage and make sure that it falls within the specified range.
2. In cooling operation, select the lowest programmable temperature (18°C); in heating
operation, select the highest programmable temperature (30°C).
Trial operation may be disabled in either operation mode depending on the room
temperature.
After trial operation is complete, set the temperature to a normal level (26°C ~ 28°C in
cooling, 20°C ~ 24°C in heating operation).
For protection, the system does not start for 3 minutes after it is turned off.
ARC466 Series
(1) Press the On/Off button to turn on the system.
(2) Press the center of the Temp button and the Mode button at the same time.
(3) Select
T
(trial operation) with the Temp
or Temp
button.
(4) Press the Mode button to start the trial operation.
(5) Press the Mode button and select operation mode.
(6) Trial operation terminates in about 30 minutes and switches into normal mode. To quit trial
operation, press the On/Off button.
(R19935)
(2) (4) (5)
(1) (6)
(2) (3)
(3)
Содержание
- Inverter pair 1
- Manual 1
- Service 1
- Sibe041134eb 1
- Wall mounted type ftxs atxs k series 1
- Heat pump 2
- Indoor unit 2
- Inverter pair wall mounted type ftxs atxs k series 2
- Outdoor unit 2
- Functions 3
- Icons used ix 3
- Indoor unit 2 2 outdoor unit 4 3
- Main functions 8 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 1 3
- Part 4 functions and control 7 3
- Safety cautions v 3
- Specifications 3
- Table of contents 3
- Thermistor functions 6 3 control specification 7 3
- Check 4 4
- General problem symptoms and check items 5 2 troubleshooting with led 6 4
- Part 5 remote controller 1 4
- Part 6 service diagnosis 4 4
- Remote controller 2 4
- Service diagnosis 7 4 troubleshooting 0 4
- Part 7 trial operation and field settings 05 5
- Part 8 appendix 13 5
- Piping diagrams 14 5
- Pump down operation 06 2 forced cooling operation 07 3 trial operation 08 4 field settings 09 5
- Silicone grease on power transistor diode bridge 12 5
- Wiring diagrams 16 5
- Be sure to read the following safety cautions before conducting repair work after the repair work is complete be sure to conduct a test operation to ensure that the equipment operates normally and explain the cautions for operating the product to the customer 6
- Caution items the caution items are classified into warning and caution the warning items are especially important since death or serious injury can result if they are not followed closely the caution items can also lead to serious accidents under some conditions if they are not followed therefore be sure to observe all the safety caution items described below 6
- Pictograms this symbol indicates an item for which caution must be exercised the pictogram shows the item to which attention must be paid this symbol indicates a prohibited action the prohibited item or action is shown in the illustration or near the symbol this symbol indicates an action that must be taken or an instruction the instruction is shown in the illustration or near the symbol 6
- Safety cautions 6
- Warning 6
- Warnings and cautions regarding safety of workers 6
- Caution 7
- Warning 7
- Caution 8
- Warning 8
- Warnings and cautions regarding safety of users 8
- Caution 9
- Warning 9
- Caution 10
- Icons used 10
- The following icons are used to attract the attention of the reader to specific information 10
- Functions 11
- Part 1 list of functions 11
- Available not available 12
- Functions 12
- Functions sibe041134eb 12
- List of functions 12
- Available not available 13
- List of functions 3 13
- Sibe041134eb functions 13
- Available not available 14
- Functions sibe041134eb 14
- List of functions 14
- Part 2 specifications 15
- Specifications 15
- Hz 220 230 240 v 16
- Specifications 16
- Specifications sibe041134eb 16
- Hz 220 230 240 v 17
- Sibe041134eb specifications 17
- Specifications 7 17
- Hz 220 230 240 v 18
- Specifications 18
- Specifications sibe041134eb 18
- Hz 220 230 240 v 19
- Sibe041134eb specifications 19
- Specifications 9 19
- Hz 220 230 240 v 20
- Specifications 20
- Specifications sibe041134eb 20
- Indoor unit 2 2 outdoor unit 4 21
- Part 3 printed circuit board connector wiring diagram 21
- Indoor unit 22
- Outdoor unit 24
- Rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 24
- Rxs20 25l3v1b arxs25l3v1b 26
- Main functions 8 27
- Part 4 functions and control 27
- Thermistor functions 6 3 control specification 7 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
- Compressor protection function refer to page 41 29
- Defrost control refer to page 46 29
- Discharge pipe temperature control refer to page 42 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 107 for details 29
- Four way valve operation compensation refer to page 41 high 29
- Freeze up protection control refer to page 44 29
- Frequency functions low 29
- Frequency limits the following functions regulate the minimum and maximum frequency 29
- Functions and control 19 29
- Heating peak cut control refer to page 44 29
- Input current control refer to page 43 29
- Inverter features the inverter provides the following features 29
- Quick heating and quick cooling the rotation speed of the compressor is increased when starting the heating or cooling this enables to reach the set temperature quickly 29
- Sibe041134eb main functions 29
- The following drawing shows a schematic view of the inverter principle 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
- 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 32
- 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 32
- Program dry operation 32
- Thermostat turns on also when the room temperature is in the zone b for 10 minutes 32
- Automatic operation 33
- Cooling dry 34
- Detail thermostat off condition 34
- Functions and control 34
- Heating 34
- Main functions sibe041134eb 34
- Outline thermostat control is based on the difference between the room thermistor temperature and the target temperature 34
- Refer to temperature control on page 18 for details 34
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 34
- The operation turns on in any zones except a 34
- The system resumes from defrost control in any zones except a 34
- The temperature difference is in the zone a 34
- The temperature difference returns to the zone c after being in the zone a 34
- Thermostat control 34
- Thermostat on conditions 34
- Econo operation 35
- Night set mode 35
- Detail 1 intelligent eye detection method 36
- Functions and control 36
- In fan operation the fan speed is reduced by 60 rpm 36
- Intelligent eye operation 36
- Main functions sibe041134eb 36
- Motions in cooling 36
- Note for dry operation the temperature cannot be set with a remote controller but the target temperature is shifted internally 36
- Outline this function detects the presence of humans in the room with a motion sensor intelligent eye and reduces the capacity when there is nobody in the room in order to save electricity 36
- The microcomputer in the indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in 1 second in total it judges humans are in the room as the motion signal is on 36
- The sensor detects human motion by receiving infrared rays and displays the pulse wave output 36
- The sensor may detect human motion with up to 20 msec latency 36
- When the microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit at a temperature shifted from the target temperature cooling dry 1 2 c higher heating 2 c lower automatic according to the operation mode at that time 36
- 80 rpm 37
- Detail when the powerful button is pressed the fan speed and target temperature are converted to the following states for 20 minutes 37
- Ex powerful operation in cooling 37
- Inverter powerful operation 37
- Note powerful operation cannot be used together with outdoor unit quiet operation 37
- Outline in order to exploit the cooling and heating capacity to full extent the air conditioner can be operated by increasing the indoor fan rotating speed and the compressor frequency 37
- Clock setting 38
- Detail 39
- Functions and control 29 39
- 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 39
- Setting example of the weekly timer 39
- Sibe041134eb main functions 39
- Weekly timer operation 39
- And reservation number 40
- Press to select the desired day of the week 40
- Press to select the desired mode 40
- Setting mode 40
- To use weekly timer operation 40
- Press to complete the setting 41
- Press to select the desired temperature 41
- Press to select the desired time 41
- Copied 42
- Copy mode 42
- Press to complete the setting 42
- Press to confirm the day of the week to be 42
- Press to select the destination day of the 42
- Caution 43
- Confirming a reservation 43
- Press to exit confirming mode 43
- Press to select the day of the week and the reservation number to be confirmed 43
- Press w 43
- Press while is displayed on the lcd 43
- To deactivate weekly timer operation 43
- Deleted 44
- Hold for about 5 seconds 44
- Hold for about 5 seconds while in normal display 44
- Press and select blank 44
- Press to select the day of the week and the 44
- Press to select the day of the week to be 44
- Reservation number to be deleted 44
- To delete reservations 44
- Auto restart function 45
- Hot start function 45
- Indoor unit on off button 45
- Other functions 45
- Signal receiving sign 45
- Thermistor functions 46
- Control specification 47
- Detail 47
- Functions and control 37 47
- Mode hierarchy 47
- Note unless specified otherwise a dry operation command is regarded as cooling operation 47
- Outline the air conditioner control has normal operation mode forced operation mode and power transistor test mode for installation and servicing 47
- Sibe041134eb control specification 47
- Frequency control 48
- D signal indoor frequency command the difference between the room thermistor temperature and the target temperature is taken as the d value and is used for d signal of frequency command 49
- For controlling lower limit frequency control is carried out only when the frequency rises 49
- Frequency control when other controls are functioning 49
- 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 49
- Initial frequency when starting the compressor the frequency is initialized according to the d value of the indoor unit 49
- Off thermostat off 49
- Pi control 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 49
- 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 49
- When frequency is dropping frequency control is carried out only when the frequency drops 49
- Controls at mode changing start up 50
- Four way valve switching 50
- Preheating control 50
- 3 minute standby 51
- Compressor protection function 51
- Detail starting conditions 1 when the compressor starts and the four way valve switches from off to on 2 when the four way valve switches from on to off during operation 3 when the compressor starts after resetting 4 when the compressor starts after the fault of four way valve switching the lower limit of frequency keeps a hz for b seconds with any conditions 1 through 4 above 51
- Four way valve operation compensation 51
- Outline at the beginning of operation as the four way valve is switched the pressure difference to activate the four way valve is acquired when the output frequency is higher than a certain fixed frequency for a certain fixed time 51
- Turning on the compressor is prohibited for 3 minutes after turning it off the function is not activated when defrosting 51
- When turning the compressor from off to on the upper limit of frequency is set as follows the function is not activated when defrosting 51
- Detail 52
- Discharge pipe temperature control 52
- 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 52
- Input current control 53
- During cooling operation the signal sent from the indoor unit determines the frequency upper limit and prevents freezing of the indoor heat exchanger the signal from the indoor unit is divided into zones the operating frequency limitation is judged with the indoor heat exchanger temperature 54
- During heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure the operating frequency limitation is judged with the indoor heat exchanger temperature 54
- Freeze up protection control 54
- Heating peak cut control 54
- Liquid compression protection function 55
- Outdoor fan control 55
- Conditions for canceling defrost the judgment is made with the outdoor heat exchanger temperature b c 56
- Defrost control 56
- Detail conditions for starting defrost 56
- More than a minutes of accumulated time have passed since the start of the operation or ending the previous defrosting 56
- 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 defrosting 56
- The compressor operates for 6 minutes 56
- The starting conditions are determined with the outdoor temperature and the outdoor heat exchanger temperature 56
- The system is in heating operation 56
- Available not available 57
- Detail the followings are the examples of electronic expansion valve control which function in each operation mode 57
- Electronic expansion valve control 57
- Functions and control 47 57
- 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 electronic expansion valve control when the frequency changes 3 electronic expansion valve control for defrosting 4 electronic expansion valve control when the discharge pipe temperature is abnormally high 5 electronic expansion valve control when the discharge pipe thermistor is disconnected feedback control target discharge pipe temperature control 57
- Sibe041134eb control specification 57
- Control when the frequency changes 58
- Fully closing with power on 58
- High discharge pipe temperature control 58
- Opening limit control 58
- Pressure equalizing control 58
- Starting operation control 58
- Discharge pipe thermistor disconnection control 59
- Target discharge pipe temperature control 59
- Detection of overcurrent and overload 60
- Malfunctions 60
- Refrigerant shortage detection 60
- Sensor malfunction detection 60
- Part 5 remote controller 61
- Remote controller 2 61
- Button 62
- Display lcd 62
- Fan setting button 62
- Inverter powerful operation p 7 62
- Note refer to the operation manual of applicable model for details you can download operation manuals from daikin business portal daikin business portal product information operation installation manual url https global1d daikin com business_portal login 62
- On off button 62
- Powerfu 62
- Reference refer to the following pages for details 62
- Remote controller 62
- Remote controller sibe041134eb 62
- Signal transmitter 62
- Temperature adjustment button 62
- Button 63
- Comfor 63
- Mode button 63
- Off timer button 63
- On timer button 63
- Quiet button 63
- Select button 63
- Sensor button 63
- Timer cancel button 63
- Check 4 64
- General problem symptoms and check items 5 2 troubleshooting with led 6 64
- Part 6 service diagnosis 64
- Service diagnosis 7 4 troubleshooting 0 64
- General problem symptoms and check items 65
- Indoor unit 66
- Outdoor unit 66
- Troubleshooting with led 66
- Is displayed on the temperature display screen 67
- Method 1 1 when the timer cancel button is held down for 5 seconds 67
- 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 method 2 refer to page 58 67
- Press the timer cancel button repeatedly until a long beep sounds 67
- Service diagnosis 67
- The code indication changes in the sequence shown below 67
- Displayed only when system down occurs 70
- Error codes and description 70
- Troubleshooting 70
- Defective indoor unit pcb 71
- Disconnection of connector 71
- Error code 71
- Error decision conditions the system cannot set the internal settings 71
- Indoor unit pcb abnormality 71
- Method of error detection the system checks if the circuit works properly within the microcomputer of the indoor unit 71
- Note check the following connector 71
- Reduction of power supply voltage 71
- Supposed causes 71
- Troubleshooting 71
- Wrong models interconnected 71
- Check no 1 refer to p 4 72
- Clogged air filter of the indoor unit 72
- Defective indoor heat exchanger thermistor 72
- Defective indoor unit pcb 72
- Dust accumulation on the indoor heat exchanger 72
- Error code 72
- Error decision conditions 72
- 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 72
- Freeze up protection control during cooling operation the indoor heat exchanger temperature is below 0 c 72
- Freeze up protection control heating peak cut control 72
- Heating peak cut control during heating operation the indoor heat exchanger temperature is above 65 c 72
- 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 72
- Method of error detection 72
- Short circuited air 72
- Supposed causes 72
- Troubleshooting 72
- Fan motor dc motor or related abnormality 73
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 74
- Caution 74
- Check no 3 refer to p 5 74
- Service diagnosis 74
- Troubleshooting 74
- Troubleshooting sibe041134eb 74
- Thermistor or related abnormality indoor unit 75
- Refrigerant shortage 76
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 77
- Caution 77
- Check no 1 refer to p 4 77
- Check no 2 refer to p 6 77
- Service diagnosis 67 77
- Sibe041134eb troubleshooting 77
- Troubleshooting 77
- Low voltage detection or over voltage detection 78
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 79
- Service diagnosis 69 79
- Sibe041134eb troubleshooting 79
- Troubleshooting 79
- Signal transmission error between indoor unit and outdoor unit 80
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 81
- Caution 81
- Check no 1 refer to p 6 81
- Service diagnosis 71 81
- Sibe041134eb troubleshooting 81
- Troubleshooting 81
- Defective indoor unit pcb 82
- Defective outdoor unit pcb 82
- Error code 82
- Error decision conditions the pair type and multi type are interconnected 82
- Method of error detection the supply power is detected for its requirements pair type is different from multi type by the indoor outdoor transmission signal 82
- Supposed causes 82
- Troubleshooting 82
- Unspecified voltage between indoor unit and outdoor unit 82
- Wrong indoor unit pcb or outdoor unit pcb mounted 82
- Wrong models interconnected 82
- Wrong wiring of connecting wires 82
- Broken harness between pcbs 83
- Defective outdoor unit pcb 83
- Error code 83
- Error decision conditions 83
- Method of error detection 83
- Momentary drop of voltage 83
- Momentary power failure 83
- Outdoor unit pcb abnormality 83
- Supposed causes 83
- The microprocessor program runs out of control 83
- The system checks if the microprocessor is working in order 83
- The system checks if the zero cross signal comes in properly 83
- The zero cross signal is not detected 83
- Troubleshooting rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 83
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 84
- Caution 84
- Service diagnosis 84
- Troubleshooting rxs20 25l3v1b arxs25l3v1b 84
- Troubleshooting sibe041134eb 84
- Ol activation compressor overload 85
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 86
- Caution 86
- Check no 1 refer to p 4 86
- Check no 2 refer to p 6 86
- Check no 3 refer to p 7 86
- Check no 4 refer to p 7 86
- Note ol q1l activating temperature 120 c ol q1l recovery temperature 95 c 86
- Service diagnosis 86
- Troubleshooting 86
- Troubleshooting sibe041134eb 86
- Check no 2 refer to p 6 87
- Check no 5 refer to p 8 87
- Closed stop valve 87
- Compressor lock 87
- Compressor locked 87
- Disconnection of compressor harness 87
- Error code 87
- Error decision conditions 87
- If the error repeats the system is shut down 87
- Method of error detection a compressor lock is detected by checking the compressor running condition through the position detection circuit 87
- Operation stops due to overcurrent 87
- Reset condition continuous run for about 11 minutes without any other error 87
- Supposed causes 87
- Troubleshooting 87
- Check no 6 refer to p 00 88
- Dc fan lock 88
- Defective fan motor 88
- Defective outdoor unit pcb 88
- Disconnection of the fan motor 88
- Error code 88
- Error decision conditions 88
- Foreign matter stuck in the fan 88
- If the error repeats the system is shut down 88
- Method of error detection an error is determined with the high voltage fan motor rotation speed detected by the hall ic 88
- Reset condition continuous run for about 11 minutes without any other error 88
- Supposed causes 88
- The fan does not start in 15 60 seconds depending on the model even when the fan motor is running 88
- Troubleshooting 88
- Check no 5 refer to p 8 89
- Check no 7 refer to p 01 89
- Check no 8 refer to p 01 89
- Defective compressor 89
- Defective outdoor unit pcb 89
- Defective power module 89
- Error code 89
- Error decision conditions the current exceeds about 9 5 a for 2 seconds with the compressor running the upper limit of the current decreases when the outdoor temperature exceeds a certain level 89
- Input overcurrent detection 89
- Method of error detection an input overcurrent is detected by checking the input current value with the compressor running 89
- Outdoor temperature is out of operation range 89
- Short circuit 89
- Supposed causes 89
- Troubleshooting 89
- Four way valve abnormality 90
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 91
- Check no 1 refer to p 4 91
- Check no 3 refer to p 7 91
- Check no 4 refer to p 7 91
- Service diagnosis 81 91
- Sibe041134eb troubleshooting 91
- Troubleshooting 91
- Check no 1 refer to p 4 92
- Check no 2 refer to p 6 92
- Check no 4 refer to p 7 92
- Defective discharge pipe thermistor defective outdoor heat exchanger thermistor or outdoor temperature thermistor 92
- Defective electronic expansion valve or coil 92
- Defective four way valve 92
- Defective outdoor unit pcb 92
- Defective stop valve 92
- Discharge pipe temperature control 92
- Error code 92
- Error decision conditions 92
- If the error repeats the system is shut down 92
- If the temperature detected by the discharge pipe thermistor rises above a c the compressor stops 92
- Method of error detection an error is determined with the temperature detected by the discharge pipe thermistor 92
- Refrigerant shortage 92
- Reset condition continuous run for about 60 minutes without any other error 92
- Supposed causes 92
- The error is cleared when the discharge pipe temperature has dropped below b c 92
- Troubleshooting 92
- Water mixed in refrigerant 92
- Check no 1 refer to p 4 93
- Check no 2 refer to p 6 93
- Check no 7 refer to p 01 93
- Check no 8 refer to p 01 93
- Check no 9 refer to p 02 93
- Defective electronic expansion valve or coil 93
- Defective outdoor fan motor 93
- Defective outdoor heat exchanger thermistor 93
- Defective outdoor unit pcb 93
- Defective stop valve 93
- Dirty outdoor heat exchanger 93
- Error code 93
- Error decision conditions 93
- High pressure control in cooling 93
- 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 93
- Supposed causes 93
- The error is cleared when the temperature drops below about 50 c 93
- The installation space is not large enough 93
- The temperature sensed by the outdoor heat exchanger thermistor rises above about 65 c 93
- Troubleshooting 93
- Broken or disconnected harness 94
- Compressor system sensor abnormality 94
- Defective outdoor unit pcb 94
- Error code 94
- Error decision conditions 94
- Method of error detection the system checks the dc current before the compressor starts 94
- Supposed causes 94
- The dc voltage before compressor start up is below 50 v 94
- The voltage converted from the dc current before compressor start up is out of the range 0 4 v 94
- Troubleshooting 94
- Position sensor abnormality 95
- Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 96
- Check no 0 refer to p 02 96
- Check no 5 refer to p 8 96
- Check no 8 refer to p 01 96
- Service diagnosis 96
- Troubleshooting 96
- Troubleshooting sibe041134eb 96
- Dc voltage current sensor abnormality 97
- Thermistor or related abnormality outdoor unit 98
- Caution 99
- Check no 1 refer to p 4 99
- Discharge pipe thermistor 99
- Outdoor heat exchanger thermistor 99
- Outdoor temperature thermistor 99
- Service diagnosis 89 99
- Sibe041134eb troubleshooting 99
- Troubleshooting in case of 99
- Check no 7 refer to p 01 100
- Check no 9 refer to p 02 100
- Defective outdoor fan motor 100
- Defective outdoor unit pcb 100
- Defective radiation fin thermistor 100
- Disconnection of connector 100
- Electrical box temperature rise 100
- Error code 100
- Error decision conditions 100
- Method of error detection an electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off 100
- Short circuit 100
- Supposed causes 100
- The error is cleared when the radiation fin temperature drops below b c 100
- 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 100
- Troubleshooting 100
- With the compressor off the radiation fin temperature is above a c 100
- Check no 7 refer to p 01 101
- Check no 9 refer to p 02 101
- Defective outdoor fan motor 101
- Defective outdoor unit pcb 101
- Defective radiation fin thermistor 101
- Disconnection of connector 101
- Error code 101
- Error decision conditions 101
- If the error repeats the system is shut down 101
- If the radiation fin temperature with the compressor on is above a c 101
- Method of error detection a radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on 101
- Note refer to silicone grease on power transistor diode bridge on page 112 for details 101
- Radiation fin temperature rise 101
- Reset condition continuous run for about 60 minutes without any other error 101
- Short circuit 101
- Silicone grease is not applied properly on the radiation fin after replacing the outdoor unit pcb 101
- Supposed causes 101
- The error is cleared when the radiation fin temperature drops below b c 101
- Troubleshooting 101
- Output overcurrent detection 102
- Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 103
- Caution 103
- Check no 2 refer to p 03 103
- Check no 5 refer to p 8 103
- Check no 7 refer to p 01 103
- Check no 8 refer to p 01 103
- Service diagnosis 93 103
- Sibe041134eb troubleshooting 103
- Troubleshooting 103
- Check no 1 disconnect the connectors of the thermistors from the pcb and measure the resistance of each thermistor using a multimeter 104
- Thermistor resistance check 104
- When the connector of indoor heat exchanger thermistor is soldered on a pcb remove the thermistor and measure the resistance 104
- When the room temperature thermistor is soldered on a pcb remove the pcb from the control pcb to measure the resistance 104
- Between the pins 12 9 and between 9 6 105
- Check no 3 105
- Fan motor wire breakdown short circuit check 1 check the connector for connection 2 turn the power off 3 check if each resistance at the phases u v and v w is 90 105
- Indoor fan motor connector output check 105
- Motor control voltage check 1 check the connector for connection 2 check the motor control voltage is generated between the pins 2 3 105
- Rotation pulse check 1 check the connector for connection 2 turn the power on and stop the operation 3 check if the hall ic generates the rotation pulse 4 times when the fan motor is manually rotated once between the pins 1 3 105
- Electronic expansion valve check 106
- Power supply waveforms check 106
- Check no 3 107
- Check no 4 107
- Four way valve performance check 107
- Inverter unit refrigerant system check 107
- Service diagnosis 97 107
- Sibe041134eb check 107
- Inverter analyzer check 108
- Check no 6 1 check that the control 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 110
- Check sibe041134eb 110
- Rotation pulse check on the outdoor unit pcb 110
- Service diagnosis 110
- Check no 7 111
- Check no 8 111
- Discharge pressure check 111
- Installation condition check 111
- Service diagnosis 101 111
- Sibe041134eb check 111
- Main circuit short check 112
- Outdoor fan system check 112
- Check no 2 check to make sure that the voltage between and of the power module is about 0 v before checking 113
- Disconnect the compressor harness connector from the outdoor unit pcb to disengage the connector press the protrusion on the connector 113
- Follow the procedure below to measure resistance between the terminals of the power module and the terminals of the compressor with a multimeter evaluate the measurement results referring to the following table 113
- Power module check 113
- Rxs20 25l3v1b arxs25l3v1b 113
- Check sibe041134eb 114
- Rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 114
- Rxs20 25l3v1b arxs25l3v1b 114
- Service diagnosis 114
- Part 7 trial operation and field settings 115
- Pump down operation 06 2 forced cooling operation 07 3 trial operation 08 4 field settings 09 115
- Silicone grease on power transistor diode bridge 12 115
- Pump down operation 116
- Caution when pressing the button do not touch the terminal board it has a high voltage and may cause electric shock 117
- Forced cooling operation 117
- Indoor unit 117
- Outdoor unit rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 117
- Trial operation 118
- Field settings 119
- Model type setting 119
- When 2 units are installed in 1 room 119
- Facility setting cooling at low outdoor temperature 120
- Standby electricity saving 120
- 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 121
- For the location of the jumper refer to page 121
- For the location of the jumper refer to page 12 121
- Indoor unit 121
- Jumper settings 121
- Outdoor unit 121
- Silicone grease on power transistor diode bridge 122
- Part 8 appendix 123
- Piping diagrams 14 123
- Wiring diagrams 16 123
- Appendix 124
- Ftxs20 25k2v1b atxs25k2v1b 124
- Ftxs20 25k3v1b atxs25k3v1b 124
- Indoor unit 124
- Piping diagrams 124
- Piping diagrams sibe041134eb 124
- Appendix 115 125
- Outdoor unit 125
- Rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 125
- Rxs20 25l3v1b arxs25l3v1b 125
- Sibe041134eb piping diagrams 125
- Appendix 126
- Ftxs20 25k2v1b atxs25k2v1b 126
- Indoor unit 126
- Note pcb1 control pcb pcb2 display pcb pcb3 intelligent eye sensor pcb refer to part 3 for printed circuit board connector wiring diagram 126
- Wiring diagrams 126
- Wiring diagrams sibe041134eb 126
- Appendix 117 127
- D093446a 127
- Ftxs20 25k3v1b atxs25k3v1b 127
- Note pcb1 control pcb pcb2 display pcb pcb3 intelligent eye sensor pcb refer to part 3 for printed circuit board connector wiring diagram 127
- Sibe041134eb wiring diagrams 127
- Appendix 128
- D065704h 128
- Note pcb1 filter pcb pcb2 main pcb pcb3 forced operation button pcb refer to part 3 for printed circuit board connector wiring diagram 128
- Outdoor unit 128
- Rxs20 25k2v1b rxs20 25k3v1b rxs20 25l2v1b arxs25l2v1b 128
- Wiring diagrams sibe041134eb 128
- Appendix 119 129
- Note pcb1 main pcb refer to part 3 for printed circuit board connector wiring diagram 129
- Rxs20 25l3v1b arxs25l3v1b 129
- Sibe041134eb wiring diagrams 129
- Revision history 130
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