![Daikin RMXS140E7V3B [332/397] Malfunction of thermistor r4t for outdoor unit heat exchanger](/img/pdf.png)
Daikin RMXS140E7V3B [332/397] Malfunction of thermistor r4t for outdoor unit heat exchanger
![Daikin RMXS140E7V3B [332/397] Malfunction of thermistor r4t for outdoor unit heat exchanger](/views2/1785828/page332/bg14c.png)
SiBE18-621 Troubleshooting for Outdoor Unit
Troubleshooting 321
7.12 Malfunction of Thermistor (R4T) for Outdoor Unit Heat
Exchanger
Remote
Controller
Display
J6
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Malfunction is detected from the temperature detected by the heat exchanger thermistor.
Malfunction
Decision
Conditions
When a short circuit or an open circuit in the heat exchange thermistor is detected.
Supposed
Causes
Defect of thermistor (R4T) for outdoor unit heat exchanger
Defect of outdoor unit PCB (A1P)
Troubleshooting
∗ Refer to thermistor resistance / temperature characteristics table on P355.
(V3074)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Resistance
is normal when
measured after
disconnecting the thermistor
(R7T) from the outdoor
unit PC board.
(3.5kΩ~
360kΩ)
Replace outdoor unit PC board
(A1P).
Connect the thermistor and turn
on again.
NO
NO
Replace the thermistor (R7T).
YES
YES
Connector
is connected to outdoor
unit PC board
(A1P).
Содержание
- E series 1
- Sibe18 621 1
- Heat pump indoor unit 2
- Outdoor unit 2
- Super multi plus e series 2
- Table of contents 2
- Functional parts layout 3 3
- Introduction vii 3
- List of functions 3
- Operation mode 0 2 basic control 1 3
- Part 1 list of functions 3
- Part 2 specifications 3
- Part 3 printed circuit board connector wiring diagram 3 3
- Part 4 refrigerant circuit 9 3
- Part 5 function 9 3
- Printed circuit board connector wiring diagram 4 3
- Refrigerant circuit 0 3
- Refrigerant flow for each operation mode 4 3
- Special control 7 3
- Specifications 0 3
- Bp unit control 0 4
- Field setting for skyair indoor unit 36 4
- Indoor unit ra models 5 4
- Indoor unit skyair models 8 4
- Other control 9 4
- Outdoor unit pcb layout 17 3 field setting 18 4
- Part 6 test operation 11 4
- Protection control 3 4
- Test operation 12 4
- Caution for diagnosis 51 5
- Instruction 51 5
- List of malfunction code 68 4 troubleshooting for ra indoor unit 70 5
- Part 7 system configuration 49 5
- Part 8 troubleshooting 49 5
- Service check function 55 5
- System configuration 50 5
- Test operation and field setting for ra indoor unit 46 5
- Troubleshooting for skyair indoor unit 81 5
- Troubleshooting for bp unit 00 6
- Troubleshooting for outdoor unit 07 6
- Check 52 9 thermistor resistance temperature characteristics 55 10 pressure sensor 57 11 method of replacing the inverter s power transistors modules 58 7
- Drawings flow charts vii 7
- Index i 7
- Part 9 appendix 61 7
- Piping diagrams 62 7
- Wiring diagrams 69 7
- Caution in repair 8
- Introduction 8
- Safety cautions 8
- Warning 8
- Caution 9
- Cautions regarding products after repair 9
- Warning 9
- Caution 10
- Inspection after repair 10
- Warning 10
- Caution 11
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 11
- Using icons 11
- Using icons list 11
- Warning 11
- List of functions 12
- Part 1 list of functions 12
- Holding functions no functions 13
- List of functions 13
- List of functions sibe18 621 13
- Holding functions no functions 14
- List of functions 3 14
- Sibe18 621 list of functions 14
- Holding functions no functions 15
- List of functions 15
- List of functions sibe18 621 15
- Holding functions no functions 16
- List of functions 5 16
- Sibe18 621 list of functions 16
- Holding functions no functions 17
- List of functions 17
- List of functions sibe18 621 17
- Holding functions no functions 18
- List of functions 7 18
- Sibe18 621 list of functions 18
- Part 2 specifications 20
- Specifications 0 20
- Bp unit 21
- Branch piping 21
- Hz 230v 21
- Indoor unit 21
- Main piping 21
- Outdoor unit 21
- Outdoor units 21
- Specifications 21
- Specifications sibe18 621 21
- Bp unit 22
- Hz 230v 22
- Sibe18 621 specifications 22
- Specifications 11 22
- Indoor units 23
- Specifications 23
- Specifications sibe18 621 23
- Wall mounted type 50hz 230v 23
- Hz 230v 24
- Sibe18 621 specifications 24
- Specifications 13 24
- Hz 230v 25
- Specifications 25
- Specifications sibe18 621 25
- Hz 230v 26
- Sibe18 621 specifications 26
- Specifications 15 26
- Duct connected type 27
- Hz 230v 27
- Specifications 27
- Specifications sibe18 621 27
- Hz 230v 28
- Sibe18 621 specifications 28
- Specifications 17 28
- Floor ceiling suspended dual type 29
- Hz 230v 29
- Specifications 29
- Specifications sibe18 621 29
- Floor standing type 30
- Hz 230v 30
- Sibe18 621 specifications 30
- Specifications 19 30
- Ceiling mounted cassette type 50hz 230v 31
- Specifications 31
- Specifications sibe18 621 31
- Ceiling suspended type 50hz 230v 32
- Sibe18 621 specifications 32
- Specifications 21 32
- Part 3 printed circuit board connector wiring diagram 34
- Main pcb a1p 35
- Outdoor unit rmxs 112 140 160 e7v3b 35
- Printed circuit board connector wiring diagram 35
- Pcb detail 36
- Printed circuit board connector wiring diagram and name 25 36
- Sibe18 621 printed circuit board connector wiring diagram 36
- Service pcb a2p 37
- Noise filter pcb a3p 38
- Cool heat selector pcb a4p 39
- Branch provider unit 40
- Wall mounted type 20 25 35 50 class d series 41
- Pcb detail pcb 1 control pcb 20 25 35 class 42
- Printed circuit board connector wiring diagram and name 31 42
- Sibe18 621 printed circuit board connector wiring diagram 42
- Pcb 2 signal receiver pcb pcb 3 display pcb 43
- Pcb 4 intelligent eye sensor pcb 43
- Printed circuit board connector wiring diagram and name 43
- Printed circuit board connector wiring diagram sibe18 621 43
- Wall mounted type 20 25 35 class c series 44
- Wall mounted type 50 60 71 class e b series 46
- Pcb 2 signal receiver pcb pcb 3 buzzer pcb 47
- Pcb 4 display pcb pcb 5 intelligent eye sensor pcb 47
- Pcb detail pcb 1 control pcb indoor unit 47
- Printed circuit board connector wiring diagram and name 47
- Printed circuit board connector wiring diagram sibe18 621 47
- Duct connected type 48
- Pcb detail pcb 2 display pcb 49
- Printed circuit board connector wiring diagram and name 49
- Printed circuit board connector wiring diagram sibe18 621 49
- Floor ceiling suspended dual type 50
- Pcb 3 display pcb 52
- Pcb 4 signal receiver pcb 52
- Printed circuit board connector wiring diagram and name 41 52
- Sibe18 621 printed circuit board connector wiring diagram 52
- Floor standing type 53
- Pcb detail pcb 1 power supply pcb 54
- Ceiling mounted cassette 600 600 type 56
- Ec0608 a 57
- Pcb detail 57
- Printed circuit board connector wiring diagram and name 57
- Printed circuit board connector wiring diagram sibe18 621 57
- Ceiling suspended type 58
- Ec0606 a 59
- Pcb detail 59
- Printed circuit board connector wiring diagram and name 59
- Printed circuit board connector wiring diagram sibe18 621 59
- Functional parts layout 3 60
- Part 4 60
- Part 4 refrigerant circuit 60
- Refrigerant circuit 60
- Refrigerant circuit 0 60
- Refrigerant flow for each operation mode 4 60
- Outdoor units 61
- Refrigerant circuit 61
- Refrigerant circuit sibe18 621 61
- Refrigerant circuit diagram 62
- Bp units 63
- Filter 63
- Ra indoor unit 63
- Refrigerant circuit 63
- Refrigerant circuit sibe18 621 63
- Sa indoor unit 63
- To outdoor unit 63
- Birds eye view 64
- Functional parts layout 64
- Outdoor units 64
- Accumulator 65
- Capillary tube 65
- Capillary tube solenoid valve 65
- Compressor 65
- Cooling operation 65
- Double pipe heat exchanger 65
- Electronic expansion valve 65
- Ev1 480 pls ev3 pi control svp off 65
- Filter 65
- Four way valve 65
- Heat exchanger 65
- High pressure sensor 65
- High pressure switch 65
- Liquid line 65
- Low pressure sensor 65
- Pressure regulating valve 65
- Refrigerant circuit 65
- Refrigerant flow for each operation mode 65
- Refrigerant flow for each operation mode sibe18 621 65
- Service port 65
- Solenoid valve 65
- Stop valve 65
- Stop valve gas line 65
- Compressor 66
- Double pipe heat exchanger 66
- Ev1 pi control ev3 pi control svp off 66
- Heating operation 66
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 66
- High pressure sensor 66
- Refrigerant circuit 55 66
- Sibe18 621 refrigerant flow for each operation mode 66
- Solenoid valve 66
- Compressor 67
- Cooling oil return operation 67
- Double pipe heat exchanger 67
- Ev1 480 pls ev2 full close svp off 67
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 67
- Refrigerant circuit 67
- Refrigerant flow for each operation mode sibe18 621 67
- Accumulator 68
- Capillary tube 68
- Capillary tube solenoid valve 68
- Compressor 68
- Double pipe heat exchanger 68
- Electronic expansion valve 68
- Ev1 480 pls ev2 55 pls svp off 68
- Filter 68
- Four way valve 68
- Heat exchanger 68
- Heating oil return operation defrost operation 68
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 68
- High pressure sensor 68
- High pressure switch 68
- Liquid line 68
- Low pressure sensor 68
- Pressure regulating valve 68
- Refrigerant circuit 57 68
- Service port 68
- Sibe18 621 refrigerant flow for each operation mode 68
- Solenoid valve 68
- Stop valve 68
- Bp unit control 0 70
- Function 70
- Indoor unit ra models 5 70
- Indoor unit skyair models 8 70
- Operation mode 0 2 basic control 1 70
- Other control 9 70
- Part 5 70
- Part 5 function 70
- Protection control 3 70
- Special control 7 70
- Function 71
- Indoor unit stop or thermostat off 71
- Indoor unit thermostat on 71
- Malfunction standby 71
- Note in the event indoor unit stops or the thermostat turns off while in oil return operation or defrosting operation pump down residual operation is performed on completion of the oil return operation or defrosting operation 71
- Operation mode 71
- Operation mode sibe18 621 71
- Pump down residual operation 71
- Basic control 72
- Heating operation is not functional at an outdoor air temperature of 24 cdb or more 72
- Normal operation 72
- Compressor pi control 73
- Heating operation tcs tcs initial value ktc2 ktc2 correction value by d signal in heating 75
- Electronic expansion valve pi control 76
- Main electronic expansion valve ev1 control carries out the electronic expansion valve y1e pi control to maintain the evaporator outlet superheated degree sh at constant during heating operation to make maximum use of the outdoor unit heat exchanger evaporator 76
- Of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger 76
- Subcooling electronic expansion valve ev3 control makes pi control of the electronic expansion valve y3e to keep the superheated degree 76
- The optimum initial value of the evaporator outlet superheated degree is 3 c but varies depending on the discharge pipe superheated degree of inverter compressor 76
- Cooling operation fan control 77
- Fan steps 77
- In cooling operation with low outdoor air temperature this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan furthermore when outdoor temperature 20 c the compressor will run in step 7 or higher when outdoor temperature 18 c it will run in step 5 or higher when outdoor temperature 12 c it will run in step 1 or higher 77
- Special control 78
- Startup control 78
- Startup control in cooling operation 78
- Startup control in heating operation 78
- This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor thus reducing startup loads furthermore the inverter is turned on to charge the capacitor in addition to avoid stresses to the compressor due to oil return or else after the startup the following control is made and the position of the four way valve is also determined to position the four way valve the master and slave units simultaneously start up 78
- Conditions to start the cooling oil returning operation is started referring following conditions 79
- Integrated amount of displaced oil 79
- Oil flown from the compressor to the side of system is collected by oil returning operation in case of that oil in the compressor runs down 79
- Oil return operation 79
- Oil return operation in cooling operation 79
- Timer after the power is turned on integrated operating time is 2 hours and subsequently every 8 hours in addition integrated amount of displaced oil is derived from tc te and the compressor load 79
- Conditions to start the heating oil returning operation is started referring following conditions 80
- From the preparing oil returning operation to the oil returning operation and from the oil returning operation to the operation after oil returning the compressor stops for 2 minute to reduce noise on changing of the four way valve 80
- Integrated amount of displaced oil 80
- Oil return operation in heating operation 80
- Timer after the power is turned on integrated operating time is 2 hours and subsequently every 8 hours in addition integrated amount of displaced oil is derived from tc te and the compressor load 80
- Defrosting operation 81
- From the preparing operation to the defrost operation and from the defrost operation to the operation after defrost the compressor stops for 2 min to reduce noise on changing of the four way valve 81
- Low pressure equivalent saturation temperature te 81
- Outdoor heat exchanger heat transfer co efficiency 81
- Temperature of heat exchange tb 81
- The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating and the heating capacity is recovered conditions to start the defrost operation is started referring following conditions 81
- Timer 2 hours at the minimum in addition outdoor heat exchange co efficiency is derived from tc te and the compressor load 81
- Pump down residual operation 82
- Pump down residual operation in cooling operation 82
- Pump down residual operation in heating operation 82
- Restart is stood by force to prevent frequent power on off and to equalize pressure in the refrigerant system 82
- Restart standby 82
- When activating compressor if the liquid refrigerant remains in the heat exchanger the liquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity therefore the pump down residual operation is performed to collect the refrigerant in the heat exchanger when the compressor is down 82
- Operation of the actuator when the system is down is cleared up 83
- Stopping operation 83
- When system is in stop mode 83
- Function 73 84
- High pressure protection control 84
- In cooling operation 84
- In heating operation 84
- Protection control 84
- Sibe18 621 protection control 84
- This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure 84
- In cooling operation 85
- In heating operation 85
- Low pressure protection control 85
- This low pressure protection control is used to protect compressors against the transient decrease of low pressure 85
- Discharge pipe protection control 86
- Inv compressor 86
- This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature 86
- Fin temp standby 87
- Inv upper limit frequency max hz 87
- Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction or transient inverter overcurrent and fin temperature increase 87
- Inverter fin temperature control 87
- Inverter overcurrent protection control 87
- Inverter protection control 87
- Limited 87
- Not limited 87
- Tfin 75 c 87
- Tfin 75 c continues for 3 min 87
- Tfin 78 c 87
- Tfin 83 c 87
- When occurring 4 times within 60 min the malfunction code l4 is output 87
- Freeze up protection control 88
- Dew condensation prevention control 89
- Demand 1 setting 90
- Demand operation 90
- Heating operation is prohibited above 24 cdb outdoor air temperature 90
- Heating operation prohibition 90
- In order to save the power consumption the capacity of outdoor unit is saved with control forcibly by using demand 1 setting to operate the unit with this mode additional setting of continuous demand setting or external input by external control adaptor is required 90
- Other control 90
- Bp unit command conversion 91
- Bp unit control 91
- D room temperature temperature setting signals from bp units are converted to capacity up down signal 91
- D signals from bp units are used as the capacity up down signal in frequency commands excludes when powerful function is in operation 91
- Processing during powerful operation mode 1 when powerful command is received from indoor units one or more units 2 thermostats are not off in room units from which powerful commands are issued 91
- When the above conditions are met the powerful operation mode is activated and the powerful operation signal is sent to outdoor unit 91
- Bp unit electronic expansion valve control 92
- Electronic expansion valve flow rate restriction 92
- Electronic expansion valve initial opening setting 92
- Control based on ev opening command from outdoor unit 93
- Full closing of electronic expansion valves 93
- Gas pipe lower limit temperature doa 17 however 8ºc or lower doa outdoor air temperature 94
- In order to prevent dew condensation in connection pipe gas pipe lower limit temperature is set as follows 94
- Outline the heat exchanger temperatures and gas pipe temperatures of operating room units are detected by the gas pipe thermistors and the electronic expansion valves flow rates are corrected so as to adjust the difference between heat exchanger temperature and gas pipe temperature of each room unit hereafter referred to as sh close to the target values 94
- Purpose of the function this function ensures appropriate refrigerant distribution when many room units are operating in the cooling mode 94
- Sh control in cooling operation 94
- The gas pipe temperature and indoor heat exchanger temperature are detected at the time of every sampling time of 40 sec for the cooling sh control 94
- When sh is higher than target value opens the valve of that room unit when sh is lower than target value closes the valve of that room unit 94
- When the liquid pipe temperature is lower than the heat exchanger temperature the electronic expansion valve is opened more than normal opening protection function to prevent rotor dew condensation 94
- Heat exchanger isothermal control in heating operation 95
- Sc control in heating operation 95
- Indoor unit ra models 96
- Power airflow dual flaps wide angle louvers and auto swing 96
- 25 35kw class 670 880 rpm during powerful operation 720 930 rpm 50 60 71kw class 750 1000 rpm during powerful operation 1050 rpm 97
- Automatic air flow control for cooling 97
- Automatic air flow control for heating 97
- 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 97
- Fan speed control for indoor units 97
- For more information about hall ic refer to the troubleshooting for fan motor on page 273 97
- Function 97
- Indoor unit ra models sibe18 621 97
- Ll sl silent l ml m mh h hh powerful 97
- Note 1 during powerful operation fan rotates at h tap 50 90 rpm 2 fan stops during defrost operation 97
- Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 97
- Step cooling heating dry mode lll 97
- The following drawing explains the principle for fan speed control for heating 97
- The following drawing explains the principle of fan speed control for cooling 97
- Within this range the airflow rate is automatically controlled when the fan setting button is set to automatic 97
- 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 98
- Programme dry function 98
- 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 98
- Automatic operation 99
- Cooling dry 100
- Function 89 100
- Heating 100
- Sibe18 621 indoor unit ra models 100
- The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 100
- The operation turns on in any zones except a 100
- The system resumes from defrost control in any zones except a 100
- The temperature difference is above the zone c after being in the zone a 100
- The temperature difference is in the zone a 100
- Thermostat control 100
- Thermostat control is based on the difference between the room temperature and the setpoint 100
- Thermostat off condition 100
- Thermostat on condition 100
- Night set mode 101
- Econo mode 102
- A microcomputer in an indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20msec 10 100msec it judges human is in the room as the motion signal is on 103
- Function 103
- In case of fan mode the fan speed reduces by 50 rpm 103
- Indoor unit ra models sibe18 621 103
- Intelligent eye 103
- Processing 1 detection method by intelligent eye 103
- The motions for example in cooling 103
- This is the function that detects existence of humans in the room by a human motion sensor intelligent eye and reduces the capacity when there is no human in the room in order to save electricity 103
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output 103
- When a microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature sifted 2 c from the set temperature cooling 2 c higher dry 1 c higher and auto according to the operation mode at that time 103
- Home leave operation 105
- 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 in case of ftxs20 50d 106
- Ex powerful operation in cooling mode 106
- Inverter powerful operation 106
- 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 106
- Air purifying filter 107
- Hot start function 107
- On off button on indoor unit 107
- Other functions 107
- Photocatalytic deodorizing filter 107
- Signal receiving sign 107
- Titanium apatite photocatalytic air purifying filter 107
- Air purifying filter with photocatalytic deodorizing function 108
- Auto restart function 108
- Mold proof air filter 108
- Self diagnosis digital display 108
- Ffq b fhq b 109
- Function 109
- Function outline 109
- Indoor unit skyair models 109
- Indoor unit skyair models sibe18 621 109
- Electric function parts 110
- Ffq b8v1b 110
- Fhq bvv1b 110
- Function details 111
- According to suction air temp 117
- Auto restart function 117
- Caution when performing maintenance and the power supply is to be shut off be sure to turn the remote controller s on off switch off first 117
- If there is a power cut when the unit is operating it will automatically resume the same operating mode when the power is restored 117
- Operation condition 117
- Program dry operation function 117
- Shutting the power supply switch off while the on off switch is still on is dangerous because the power failure automatic reset function will cause the indoor fan to start turning immediately or the outdoor unit fan to automatically start turning three minutes after the power supply is turned back on 117
- The points of thermostat on or off are determined according to the suction air temperature at the startup of unit operation the set temperature and flow rate are not displayed on remote controller 117
- Thermostat on point 117
- Fan and flap operations 118
- L or ll operation for ffq only l for 4 way outlet and ll for 2 way or 3 way outlet 118
- Mode conflict overview while the indoor unit for another room and the outdoor unit are operating when the indoor unit for the own room is activated the operation mode which can be selected in the own room has some restrictions as mentioned below i in case an priority for operation mode selection is given to the own room by setting the dip switch of outdoor unit the own room can be operated in any mode ii in case an priority for operation mode selection is not given to the own room by setting the dip switch of outdoor unit the unit can be operated as follows 119
- Note during automatic operation at the time of changing operation mode to automatic cooling or automatic heating the unit is operated as the table shown above 119
- Operation of the indoor unit for the own room during non operation fan off louver becomes horizontal position on led on the remote controller blinks indication of under central control on the remote controller displayed 119
- Operational the unit for another room is switched into non operational condition non operational 119
- Field setting for skyair indoor unit 36 122
- Outdoor unit pcb layout 17 3 field setting 18 122
- Part 6 122
- Part 6 test operation 122
- Test operation 122
- Test operation 12 122
- Test operation and field setting for ra indoor unit 46 122
- Check work prior to turn power supply on 123
- Follow the following procedure to conduct the initial test operation after installation 123
- Procedure and outline 123
- Test operation 123
- Turn power on 123
- Address redundancy checking flowchart 124
- Judging and reprogramming in case of redundant bp addresses 124
- Modify the dip switch ds2 settings on the bp unit s pcb in the following way 124
- Reprogramming the pcb addresses of bp unit 124
- Sibe18 621 test operation 124
- Test operation 113 124
- The bp unit of this system is provided with specific addresses in its production stage these addresses are used to conduct various controls if by any chance on 3 out of 260000 units these addresses are redundant the system may get in trouble when replacing the pcb of the bp unit too these addresses may be used repeatedly 124
- Be sure to push and hold the reset button for 5 seconds if not the addition cannot be recognized in this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc status 125
- Ds1 4 factory setting is off the bp unit 1 through 3 show the first through third unit respectively the order of these units is flexible the above table is just for your reference the redundancy of addresses can be avoided when the dip switch settings are individually specified with the dip switch settings reprogrammed power on the outdoor unit and bp unit again check for address redundancy 125
- Example of dip switch ds2 settings on the bp unit s pcb 125
- Note if an error display appears on the indoor unit bp unit or outdoor unit follow its code and description 125
- Tap the reset bs5 button on the outdoor unit pc board operation becomes possible for about 2 minutes if not the unit cannot be run for up to 10 minutes status 125
- The unit cannot be run for up to 12 minutes to automatically set address indoor outdoor address etc status 125
- When the no of indoor unit has been changed or indoor bp or outdoor unit pc board has been changed or the system is transferred 125
- When turning on power first time 125
- When turning on power the second time and subsequent 125
- Check on operation 126
- Check operation 126
- During check operation mount front panel to avoid the misjudging check operation is mandatory for normal unit operation when the check operation is not executed alarm code u3 will be displayed 126
- Malfunction code in case of an alarm code displayed on remote controller 126
- On completion of test operation led on outdoor unit pc board displays the following h3p on normal completion h2p and h3p on abnormal completion check the indoor unit remote controller for abnormal display and correct it 126
- Only for skyair 126
- Press and hold the test operation button bs4 on outdoor unit pc board for 5 seconds 126
- The test operation is started automatically the following judgements are conducted within 15 minutes about 30 minutes at the maximum 2 check for wrong wiring 2 check stop valve for not open the following indications are conducted while in test operation 2 led lamp on outdoor unit pc board h2p blinks test operation 2 remote controller indicates during centralized control on upper right indicates test operation on lower left 126
- Confirmation on normal operation 127
- Caution cover electric parts with an insulating sheet during inspection to prevent electric shock 128
- Outdoor unit pcb 128
- Outdoor unit pcb layout 128
- A4p a2p 129
- Field setting 129
- Field setting from outdoor unit 129
- Setting by dip switches 129
- Caution 130
- Dip switch setting after changing the main pcb a1p to spare parts pcb when you change the main pcb a1p to spare parts pcb please carry out the following setting 130
- Sibe18 621 field setting 130
- Test operation 119 130
- 7 8 7 7 7 7 131
- Factory setting 131
- Field setting sibe18 621 131
- H1p h2p h3p h4p h5p h6p h7p 131
- Led indication 131
- Mode changing procedure 131
- Monitor mode h1p blinks used to check the program made in setting mode 2 131
- Setting by pushbutton switches the following settings are made by pushbutton switches on pcb 131
- Setting mode 1 h1p off initial status when normal also indicates during abnormal 131
- Setting mode 2 h1p on used to modify the operating status and to set program addresses etc usually used in servicing the system 131
- Test operation 131
- There are the following three setting modes 131
- 7 8 7 7 7 7 132
- A setting mode 1 132
- Procedure for changing cool heat selection setting 132
- Sibe18 621 field setting 132
- Test operation 121 132
- This mode is used to set and check the following items 1 set items in order to make cool heat selection in a batch of outdoor unit group change the setting cool heat selection ind used to select cool or heat by individual outdoor unit factory set cool heat selection master used to select cool or heat by outdoor unit group with the master unit cool heat selection slave used to select cool or heat by outdoor unit group with the slave unit 2 check items the following items can be checked 1 current operating conditions normal abnormal in check operation 2 setting conditions of cool heat selection individual batch master batch slave 3 low noise operating conditions in normal operation in low noise operation 4 demand operating conditions in normal operation in demand operation 132
- B setting mode 2 133
- 7 7 7 7 7 136
- 7 7 7 7 8 136
- 7 7 7 7 9 136
- 7 7 7 8 7 136
- 7 7 7 8 8 136
- 7 7 7 9 7 136
- 7 7 8 7 7 136
- 7 7 8 7 8 136
- 7 7 8 8 8 136
- 7 7 9 7 7 136
- 7 8 7 7 7 136
- 7 8 7 8 8 136
- 7 8 8 7 7 136
- 7 8 8 7 8 136
- 7 8 8 8 7 136
- 7 8 8 8 8 136
- 8 7 7 7 7 136
- 8 7 8 7 7 136
- 8 7 8 7 8 136
- 8 7 8 8 7 136
- 8 8 7 7 8 136
- C monitor mode 136
- Defrost select setting short 136
- Emg operation backup operation setting 136
- Setting item 0 display contents of various setting 136
- Sibe18 621 field setting 136
- Tc setting h 136
- Te setting h 136
- Test operation 125 136
- The numbers in the no column represent the number of times to press the set bs2 button 136
- Cool heat mode switching 138
- Detail of setting mode 138
- For the details refer to the installation manual supplied together with the indoor unit 138
- In the case of wired remote controllers 138
- In the case of wireless remote controllers 138
- It does not matter whether or not there is outdoor outdoor unit wiring 138
- Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller 138
- Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller 138
- Set cool heat separately for each outdoor unit system by cool heat switching remote controller 138
- Set cool heat separately for each outdoor unit system by indoor unit remote controller 138
- Set cool heat switching to ind individual for setting mode 1 factory set 138
- Set outdoor unit pc board ds1 1 to in factory set 138
- There are the following 4 cool heat switching modes 138
- It does not matter whether or not there is outdoor outdoor unit wiring 139
- Set cool heat separately for each outdoor unit system by cool heat switching remote controller 139
- Set cool heat switching to ind individual for setting mode 1 factory set 139
- Set outdoor unit pc board ds1 1 to out factory set 139
- Setting of low noise operation and demand operation 140
- Demand mode 1 the compressor operates at approx 60 or less of rating mode 2 the compressor operates at approx 70 or less of rating mode 3 the compressor operates at approx 80 or less of rating 141
- Field setting sibe18 621 141
- Image of operation 141
- Set item condition content 141
- Setting of demand operation by connecting the external contact input to the demand input of the outdoor unit external control adapter optional the power consumption of unit operation can be saved suppressing the compressor operating condition 141
- Test operation 141
- When the normal demand operation is carried out use of the external control adapter for outdoor unit is not required 1 while in setting mode 2 make setting of the set item no 32 setting of constant demand to on 2 while in setting mode 2 select the set item no 30 setting of demand 1 level and then set the setting condition to targeted mode 141
- Refrigerant additional charging operation procedure 144
- Service port 144
- Setting of refrigerant additional charging operation 144
- Sibe18 621 field setting 144
- Test operation 133 144
- Setting of refrigerant recovery mode 145
- Setting of vacuuming mode 145
- Check operation 146
- Check operation function 146
- To prevent any trouble in the period of installation at site the system is provided with a test operation mode enabling check for incorrect wiring stop valve left in closed coming out or misplacing with suction pipe thermistor of discharge pipe thermistor and judgment of piping length refrigerant overcharging and learning for the minimum opening degree of electronic expansion valve 146
- Explanation 147
- Field set is carried out from the remote controller at time of installation or after maintenance inspection repair carry out field set according to the explanation below incorrect settings will cause a malfunction to occur the indoor unit settings are sometimes changed if optional accessories are mounted on the indoor unit refer to the optional accessory manual 147
- Field setting for skyair indoor unit 147
- Field setting 148
- Wired remote controller 148
- Field setting for skyair indoor unit sibe18 621 149
- Initial setting contents 149
- Note if optional accessories are mounted on the indoor unit the indoor unit setting may have to be changed refer to the instruction manual optional hand book for each optional accessory 149
- Procedure 1 when in the normal mode push the button for a minimum of four seconds and the field set mode is entered 2 select the desired mode no with the button 3 push the button and select the first code no 4 push the button and select the second code no 5 push the button and the present settings are set 6 push the button to return to the normal mode 149
- Test operation 149
- Wireless remote controller 149
- Automatic restart after power outage 12 22 5 150
- Caution when auto restart after power failure reset is set be sure to turn off air conditioners then cut off the power supply before conducting maintenance inspection and other work if the power supply is cut off with the power switch left on air conditioners will automatically start operating when the power supply is turned on 150
- Do not set any items other than those listed in the above table 6 functions that indoor units are not equipped with will not be displayed 7 when returning to normal mode 88 may be displayed on the lcd section of the remote controller due to initialization operation 150
- Example to set the filter sign time to filter contamination heavy for all units in a group set mode no to 10 setting switch no to 0 and setting position no to 02 150
- Filter sign indication only for ceiling mounted duct type 10 20 3 3 since drafts may result carefully select the installation location 4 when power returns units resume the settings made before the power failure 150
- Local setting mode number 150
- Note 1 setting is made in all units in a group to set for individual indoor units or to check the setting use the mode nos with 2 in upper digit in parentheses 2 the setting position no is set to 01 at the factory except for the following cases in which 02 is set 150
- Remote control thermostat 10 20 2 150
- Setting of air flow direction adjustment range 13 23 4 150
- Table fhq ffq 150
- Air flow direction setting ffq 151
- Detailed explanation of setting modes 151
- Fan speed off when thermostat is off ffq fhq 151
- Filter sign setting ffq fhq 151
- If switching the filter sign on time set as given in the table below set time 151
- Make the following air flow direction setting according to the respective purpose 151
- Range of air flow direction setting ffq 151
- Set the air flow direction of indoor units as given in the table below set when optional air outlet blocking pad has been installed the second code no is factory set to 01 151
- Setting table 151
- When the cool heat thermostat is off you can stop the indoor unit fan by switching the setting to fan off used as a countermeasure against odor for barber shops and restaurants 151
- After completing setting seal off the opening of the address switch and the main sub switch with the attached sealing pad 152
- By setting to set fan speed you can switch the fan speed to the set fan speed when the heating thermostat is off since there is concern about draft if using fan speed up when thermostat is off you should take the setup location into consideration 152
- Explanation if several wireless remote controller units are used together in the same room including the case where both group control and individual remote controller control are used together be sure to set the addresses for the receiver and wireless remote controller for group control see the attached installation manual for the indoor unit if using together with a wired remote controller you have to change the main sub setting or the receiver 152
- Fan speed changeover when thermostat is off ffq fhq 152
- Receiver setting set the wireless address switch ss2 on the transmitter board according to the table below 152
- Setting table 152
- Ss2 ss1 152
- When using both a wired and a wireless remote controller for 1 indoor unit the wired controller should be set to main therefore set the main sub switch ss1 of the transmitter board to sub 152
- Wireless setting address and main sub setting 152
- Centralized group no setting 155
- Maintenance mode setting 156
- Operation is not reset by malfunction code reset for inspection cannot be reset because the count is updated each time a malfunction occurs 156
- Procedure 1 enter the field set mode continue to push the inspection test operation button for a minimum of 4 seconds 2 enter the maintenance mode after having entered the field set mode continue to push the inspection test operation button for a minimum of 4 seconds 3 select the mode no set the desired mode no with the up down temperature setting button 4 select the unit no select the indoor unit no set with the time mode start stop button 5 carry out the necessary settings for each mode modes 41 44 and 45 see the table below for details 6 enter the setting contents modes 44 and 45 enter by pushing the timer on off button 7 return to the normal operation mode tap the inspection test operation button one time 156
- Test operation and field setting for ra indoor unit 157
- Test operation from the remote controller 157
- Control pcb of the indoor unit 1 remove the electrical box 2 cut the address jumper ja on the control pcb 158
- How to set the different addresses 158
- Jumper setting 158
- Jumper settings 158
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 158
- When two units are installed in one room 158
- Wireless remote controller 1 slide the front cover and take it off 2 cut the address jumper j4 158
- Adjusting the angle of the intelligent eye sensor 159
- Instruction 51 160
- Part 7 system configuration 160
- System configuration 50 160
- Operation instructions 161
- System configuration 161
- Comfort 162
- Instruction 162
- Operating noise 162
- Points the customer should be aware of 162
- Rmxs series 162
- Illustrations are for wall mounted type ftxs20 25 35 50d as representative 163
- Manual contents and reference page 163
- Wall mounted duct floor ceiling floor standing type 163
- Caution 164
- Safety precautions 164
- Warning 164
- Consider nuisance to your neighbours from noises 165
- Electrical work 165
- Installation site 165
- System relocation 165
- Indoor unit 166
- Names of parts 166
- Indoor unit 167
- Outdoor unit 167
- Arc433a50 4 168
- On off 168
- Remote controller 168
- Ftxs 20 25 35 c 169
- Indoor unit 169
- Names of parts 169
- Indoor unit 170
- Outdoor unit 170
- Remote controller 171
- Indoor unit 172
- Main unit control panel 172
- Names of parts 172
- Indoor unit 173
- Outdoor unit 173
- Arc433a21 a22 174
- Remote controller 174
- Indoor unit 175
- Names of parts 175
- Indoor unit 176
- Outdoor unit 176
- Arc433a7 a8 177
- Remote controller 177
- Caution 178
- Flxs 25 35 50 60 b 178
- Indoor unit 178
- Names of parts 178
- Opening the front panel 178
- Indoor unit 179
- Outdoor unit 179
- Arc433a5 a6 180
- On off 180
- Remote controller 180
- Caution 181
- Fvxs 25 35 50 b 181
- Indoor unit 181
- Names of parts 181
- Opening the front panel 181
- Indoor unit 182
- Outdoor unit 182
- Arc433a5 a 183
- On off 183
- Remote controller 183
- Preparation before operation 184
- To set the batteries 184
- Attention 185
- Choose a place from where the sig nals reach the unit 185
- Fix the holder to a wall a pillar or similar location with the screws procured locally 185
- Place the remote controller in the remote controller holder 185
- Preparation before operation 185
- To fix the remote controller holder on the wall 185
- To operate the remote controller 185
- Be careful not to cool heat the room too much keeping the temperature setting at a moderate level helps save energy cover windows with a blind or a curtain blocking sunlight and air from outdoors increases the cooling heating effect clogged air filters cause inefficient operation and waste energy clean them once in about every two weeks 186
- If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 186
- Operation outside this humidity or temperature range may cause a safety device to disable the system 186
- Press clock button 186
- Press timer setting button to set the clock to the present time 186
- The air conditioner always consumes 15 35 watts of electricity even while it is not operating 186
- To set the clock 186
- Turn the breaker on 186
- Use the air conditioner in the following conditions 186
- Auto dry cool heat fan operation 187
- To change the temperature setting 187
- To start operation 187
- To stop operation 187
- Press fan setting button 188
- To change the air flow rate setting 188
- Adjusting the air flow direction 189
- Press swing button 189
- To adjust the horizontal blades flaps 189
- To adjust the vertical blades louvers 189
- When the flaps have reached the desired position press swing button once more 189
- Cool dry the flap will go up heat the flap will go down 190
- Notes on comfort airflow operation 190
- Notes on flaps and louvers angles 190
- Press comfort airflow button 190
- Press comfort airflow button again 190
- To cancel comfort airflow operation 190
- To start comfort airflow operation 190
- Adjusting the air flow direction 191
- Ftxs 20 25 35 c 191
- Press swing button 191
- To adjust the horizontal blades flaps 191
- When the flaps have reached the desired position press swing button once more 191
- Notes on flaps and louvers angles 192
- Sibe18 621 instruction 192
- System configuration 181 192
- To adjust the vertical blades louvers 192
- Adjusting the air flow direction 193
- To adjust the horizontal blade flap 193
- To adjust the vertical blades louvers 193
- Notes on flap angle 194
- Notes on louvers angles 194
- Press either the swing button or the swing button 194
- Press the swing button and the swing button the and display will light up and the flap and louvers will move in turn 194
- To 3 d airflow 194
- To cancel 3 d airflow 194
- Adjusting the air flow direction 195
- Press swing button 195
- To adjust the horizontal blade flap 195
- When the flaps have reached the desired position press swing button once more 195
- Attention 196
- Notes on flap and louvers angles 196
- Sibe18 621 instruction 196
- System configuration 185 196
- To adjust the vertical blades louvers 196
- Adjusting the air flow direction 197
- Notes on flap and louvers angle 197
- To adjust the horizontal blade flap 197
- To adjust the vertical blades louvers 197
- Air flow selection 198
- Caution 198
- When setting the air flow selection switch to 198
- When setting the air outlet selection switch to 198
- Powerful operation 199
- To cancel powerful operation 199
- To start powerful operation 199
- Outdoor unit silent operation 200
- To cancel outdoor unit silent operation 200
- To start outdoor unit silent operation 200
- Econo operation 201
- To cancel econo opera tion 201
- To start econo operation 201
- Before using home leave operation 202
- Home leave operation 202
- To cancel home leave operation 202
- To start home leave operation 202
- Use as a favorite mode 203
- Use as an energy saving mode 203
- Useful in these cases 203
- What s the home leave operation 203
- Intelligent eye operation 204
- Press sensor button 204
- Press sensor button again 204
- To cancel the intelligent eye operation 204
- To start intelligent eye operation 204
- Caution 205
- Intelligent eye is useful for energy saving 205
- Intelligent eye operation 205
- Notes on intelligent eye 205
- Energy saving operatio 206
- Intelligent eye operation 206
- Press sensor button 206
- Press sensor button again 206
- To cancel the intelligent eye operation 206
- To start intelligent eye operation 206
- Caution 207
- Intelligent eye is useful for energy saving 207
- Notes on intelligent eye 207
- To adjust the angle of the intelligent eye sensor 207
- Intelligent eye operation 208
- Press sensor button 208
- Press sensor button again 208
- To cancel the intelligent eye operation 208
- To start intelligent eye operation 208
- Caution 209
- Intelligent eye is useful for energy saving 209
- Notes on intelligent eye 209
- Timer operation 210
- To cancel the off timer operation 210
- To use off timer operation 210
- Attention 211
- Press cancel button 211
- Press on timer button 211
- Press on timer button again 211
- Press timer setting button until the time setting reaches the point you like 211
- Timer operation 211
- To cancel on timer operation 211
- To combine on timer and off timer 211
- To use on timer operation 211
- Night quiet mode available only for cooling operation 212
- Note for multi system 212
- Outdoor unit silent operation 212
- Selecting the operation mode 212
- Sibe18 621 instruction 212
- System configuration 201 212
- Example room a is the priority room in the examples 213
- Operation mode priority 213
- Priority room setting 213
- Priority when powerful operation is used 213
- Priority when using outdoor unit silent operation 213
- The priority room setting requires initial programming during installation please consult your retailer or dealer for assistance 213
- Care and cleaning 214
- Caution 214
- Front panel 214
- Indoor unit outdoor unit and remote controller 214
- Air filter 215
- Filters 215
- Maintenance 215
- Replacement 215
- Titanium apatite photocatalytic air purifying filte 215
- Before a long idle period 216
- Clean the air filters and set them again 216
- Operate the fan only for several hours on a fine day to dry out the inside 216
- Take out batteries from the remote controller 216
- Turn off the breaker for the room air conditioner 216
- Attach the front panel 217
- Before cleaning be sure to stop the operation and turn the breaker off 217
- Care and cleaning 217
- Caution 217
- Clean the front panel 217
- Front panel 217
- Indoor unit outdoor unit and remote controller 217
- Open the front panel 217
- Remove the front panel 217
- Wipe them with dry soft cloth 217
- Air filter 218
- Air purifying filter with photocatalytic deodorizing function gray 218
- Filters 218
- Maintenance 218
- Replacement 218
- After operation stops turn off the breaker for the room air conditioner 219
- Air purifying filter with photocatalytic deodorizing function with frame 1 set 219
- Air purifying filter with photocatalytic deodorizing function without frame 1 set 219
- Before a long idle period 219
- Clean the air filters and set them again 219
- Dispose of old filters as burnable waste 219
- Operate the fan only for several hours on a fine day to dry out the inside 219
- Press mode button and select fan operation 219
- Press on off button and start operation 219
- Take out batteries from the remote controller 219
- Attach the front panel 220
- Before cleaning be sure to stop the operation and turn the breaker off 220
- Care and cleaning 220
- Caution 220
- Clean the front panel 220
- Front panel 220
- Indoor unit outdoor unit and remote controller 220
- Open the front panel 220
- Remove the front panel 220
- Wipe them with dry soft cloth 220
- After washing shake off remaining water and dry in the shade 4 221
- Air filter 221
- Clean or replace each filter 221
- Filters 221
- If it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent 221
- Maintenance 221
- Open the front panel 221
- Pull out the air filters 221
- Remove dust with a vacuum cleaner and wash lightly with water 2 221
- Remove the tabs on the filter frame and replace with a new filter 221
- Replacement 221
- Set the air filter and the titanium apatite photocatalytic air purifying filter as they were and close the front panel 221
- Take off the titanium apatite photocatalytic air purifying filter 221
- Titanium apatite photocatalytic air purifying filter gray 221
- Wash the air filters with water or clean them with vacuum cleaner 221
- After operation stops turn off the breaker for the room air conditioner 222
- Before a long idle period 222
- Clean the air filters and set them again 222
- Operate the fan only for several hours on a fine day to dry out the inside 222
- Take out batteries from the remote controller 222
- When a multi outdoor unit is connected make sure the heating operation is not used at the other room before you use the fan operation 222
- Before cleaning be sure to stop the operation and turn the breaker off 223
- Care and cleaning 223
- Caution 223
- Cleaning the air filter 223
- Fdxs 25 35 c 223
- Only a qualified service person is allowed to perform maintenance 223
- Removing the air filter 223
- Replacing the air filter 223
- After operation stops turn off the breaker for the room air conditioner 224
- Before a long idle period 224
- Caution 224
- Clean the air filters and set them again 224
- Cleaning the drain pan 224
- Operate the fan only for several hours on a fine day to dry out the inside 224
- Take out batteries from the remote controller 224
- Before cleaning be sure to stop the operation and turn the breaker off 225
- Care and cleaning 225
- Caution 225
- Cleaning the air filter 225
- Fdxs 50 60 c fdxs 25 35 e 225
- Only a qualified service person is allowed to perform maintenance 225
- Removing the air filter 225
- Replacing the air filter 225
- Before a long idle period 226
- Caution 226
- Clean the air filters and set them again 226
- Cleaning the drain pan 226
- Operate the fan only for several hours on a fine day to dry out the inside 226
- Take out batteries from the remote controller 226
- Turn off the breaker for the room air conditioner 226
- Before cleaning be sure to stop the operation and turn the breaker off 227
- Care and cleaning 227
- Caution 227
- Clean the front panel 227
- Close the front panel 227
- Front panel 227
- Indoor unit outdoor unit and remote controller 227
- Open the front panel 227
- Wipe them with dry soft cloth 227
- Air filter 228
- Air purifying filter green 228
- Clean or replace each filter 228
- Detach the filter element and attach a new one 228
- Dry the photocatalytic deodorizing filter in the sun 228
- Filters 228
- Insert claws of the filters into slots of the front panel 228
- Maintenance 228
- Open the front panel 2 pull out the air filters 228
- Photocatalytic deodorizing filter gray 228
- Replacement 228
- Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front panel 228
- Take off the air purifying filter photocatalytic deodorizing filter 228
- Wash the air filters with water or clean them with vacuum cleaner 228
- After operation stops turn off the breaker for the room air conditioner 229
- Before a long idle period 229
- Clean the air filters and set them again 229
- Operate the fan only for several hours on a fine day to dry out the inside 229
- Take out batteries from the remote controller 229
- Attach the front panel 230
- Before cleaning be sure to stop the operation and turn the breaker off 230
- Care and cleaning 230
- Caution 230
- Clean the front panel 230
- Front panel 230
- Indoor unit outdoor unit and remote controller 230
- Open the front panel 230
- Remove the front panel 230
- Wipe them with dry soft cloth 230
- Air filter 231
- Air purifying filter green 231
- Clean or replace each filter 231
- Detach the filter element and attach a new one 231
- Dry the photocatalytic deodorizing filter in the sun 231
- Filters 231
- Maintenance 231
- Open the front panel 231
- Photocatalytic deodorizing filter gray 231
- Remove the air filter 231
- Replacement 231
- Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front panel 231
- Take off the air purifying filter photocatalytic deodorizing filter 231
- Wash the air filters with water or clean them with vacuum cleaner 231
- After operation stops turn off the breaker for the room air conditioner 232
- Before a long idle period 232
- Clean the air filters and set them again 232
- Operate the fan only for several hours on a fine day to dry out the inside 232
- Take out batteries from the remote controller 232
- Case explanation 233
- These cases are not troubles 233
- Trouble shooting 233
- Troubleshooting 233
- Case check 234
- Check again 234
- Call the service shop immediately 235
- Disposal requirements 235
- The power cord is abnormally hot or damaged an abnormal sound is heard during operation the safety breaker a fuse or the earth leakage breaker cuts off the operation frequently a switch or a button often fails to work properly there is a burning smell water leaks from the indoor unit 235
- Turn the breaker off and call the service shop 235
- Warning 235
- We recommend periodical maintenance 235
- Fault diagnosis 236
- Sibe18 621 instruction 236
- System configuration 225 236
- The code indication changes as shown below and notifies with a long beep 236
- Instruction sibe18 621 237
- Led on outdoor unit pcb 2mxs 2mks series 237
- Led on outdoor unit pcb 3mxs 3mks 4mxs 4mks series 237
- System configuration 237
- Ceiling mounted cassette type 238
- Indoor unit 239
- Names and functions of parts 239
- Outdoor unit 239
- Precautions for group control system or two remote controller control system 239
- Unit with remote controller 239
- What to do before operation 239
- Safety considerations 240
- Installation site 241
- Operation range 241
- Pay attention to running noises too 241
- Regarding drainage of drain piping 241
- Regarding places for installation 241
- Regarding wiring 241
- Name and function of each switch and display on the remote controller 242
- Operation procedure 242
- Adjustment 243
- Air flow direction adjust 243
- Cooling heating automatic fan and program dry operation 243
- Defrost operation 243
- Explanation of heating operation 243
- Fan speed control 243
- On off 243
- Operation mode selec tor 243
- Press fan speed control button 243
- Press on off button 243
- Press operation mode selector but ton several times and select the opera tion mode of your choice as follows 243
- Press temperature setting button and program the setting temperature 243
- Regarding outside air temperature and heat ing capacity 243
- Temperature setting 243
- Up and down adjustment 243
- Movement of the air flow flap 244
- Optimum operation 244
- Press the air flow direction adjust button to select the air direction as following 244
- Press the programming time button and set the time for stopping or starting the sys tem 244
- Press the timer mode start stop but ton several times and select the mode on the display 244
- Press the timer on off button 244
- Program timer operation 244
- Programming time 244
- Timer mode start stop 244
- Timer on off 244
- How to clean the air filter 245
- Important 245
- Maintenance for service personnel 245
- Only a qualified service person is allowed to perform maintenance 245
- How to clean air outlet and out side panels 246
- How to clean the suction grille 246
- Not malfunction of the air conditioner 246
- Start up after a long stop 246
- What to do when stopping the sys tem for a long period 246
- Trouble shooting 248
- Ceiling suspended type 249
- All wiring must be performed by an authorized electrician 251
- Cooling 251
- D b dry bulb temperature c wb wet bulb temperature c 251
- Do not use the air conditioner in the following places a filled with much mineral oil such as cutting oil b where there is much salt such as a beach area c where sulfured gas exists such as a hot spring resort d where there are considerable voltage fluctua tions such as a factory or plant e vehicles and vessels 251
- Execute complete drain piping for perfect drainage incomplete piping may result in a water leakage the appliance is not intended for use by young children or infirm persons without supervision 251
- F where there is much spray of oil and vapor such as a cookery etc g where there are machines generating electro magnetic waves h filled with acid and or alkaline steam or vapor 251
- Heating 251
- If the temperature or the humidity is beyond the following con ditions safety devices may work and the air conditioner may not operate or sometimes water may drop from the indoor unit 251
- Installation site 251
- Is a snow protection measure taken for details consult your dealer 251
- Is the air conditioner installed at a well venti lated place where there are no obstacles around 251
- Operation range 251
- Regarding places for installation 251
- Regarding wiring 251
- The setting temperature range of the remote con troller is 16 c to 32 c 251
- Young children should be supervised to ensure that they do not play with the appliance 251
- And display on the remote controller 252
- Name and function of each switc 252
- Pay attention to running noises too 252
- Regarding drainage of drain piping 252
- Cooling heating automatic fan and program dry operation 253
- Defrost operation 253
- Explanation of heating operation 253
- On off 253
- Operation mode selec tor 253
- Operation procedure 253
- Press on off button 253
- Press operation mode selector but ton several times and select the opera tion mode of your choice as follows 253
- Regarding outside air temperature and heat ing capacity 253
- A up and down direction 254
- Adjustment press the air flow direction adjust button to select the air direction as follow ing 254
- Air flow direction adjust 254
- B left and right direction 254
- Fan speed control 254
- Movement of the air flow flap 254
- Press fan speed control button 254
- Press temperature setting button and program the setting temperature 254
- Temperature setting 254
- Optimum operation 255
- Press the programming time button and set the time for stopping or starting the sys tem 255
- Press the timer mode start stop button several times and select the mode on the display 255
- Press the timer on off button 255
- Program timer operation 255
- Programming time 255
- Timer mode start stop 255
- Timer on off 255
- How to clean the air filter 256
- Important 256
- Maintenance for service personnel 256
- How to clean air outlet and out side panels 257
- How to clean the suction grille 257
- Not malfunction of the air conditioner 257
- Start up after a long stop 257
- What to do when stopping the sys tem for a long period 257
- Indoor unit no in which a malfunction occurs 259
- Inspection display 259
- Operation lamp 259
- Trouble shooting 259
- Caution for diagnosis 51 260
- List of malfunction code 68 4 troubleshooting for ra indoor unit 70 260
- Part 8 troubleshooting 260
- Service check function 55 260
- Troubleshooting for bp unit 00 260
- Troubleshooting for skyair indoor unit 81 260
- Check 52 9 thermistor resistance temperature characteristics 55 10 pressure sensor 57 11 method of replacing the inverter s power transistors modules 58 261
- Troubleshooting for outdoor unit 07 261
- Caution for diagnosis 262
- Troubleshooting with the operation lamp ra indoor unit 262
- Troubleshooting with the led on the skyair indoor unit 263
- Troubleshooting with the led on the outdoor unit 264
- Caution for diagnosis sibe18 621 265
- Led4 h5p 265
- Leda h1p led1 h2p led2 h3p led3 h4p 265
- Troubleshooting 265
- Troubleshooting with the led on the bp unit 265
- Check method 1 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 266
- In the arc433a series remote controller the temperature display sections on the main unit indicate corresponding codes 266
- 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 266
- Press the timer cancel button repeatedly until a continuous beep is produced 266
- Ra indoor unit wireless remote controller 266
- Service check function 266
- The code indication changes in the sequence shown below and notifies with a long beep 266
- Error code list in relation to ra indoor units 269
- Not used for troubleshooting 269
- Explanation the following modes can be selected by using the inspection test operation button on the remote control 270
- Inspection mode 270
- Local setting mode service mode 270
- Normal mode 270
- Sibe18 621 service check function 270
- Skyair indoor unit inspection test button 270
- Test operation mode 270
- Troubleshooting 259 270
- Skyair indoor unit wired remote controller 271
- Skyair indoor unit wireless remote controller 272
- Blinks 274
- High probability of malfunction 274
- Indoor unit 274
- Low probability of malfunction no possibility of malfunction do not replace 274
- Off no connection with troubleshooting 274
- Possibility of malfunction 274
- Sky air indoor unit error codes and led indication 274
- Symbols 274
- System 274
- Detail description on next page 275
- Malfunction code indication by outdoor unit pcb 275
- Push the mode bs1 button and returns to setting mode 1 275
- Push the return bs3 button and switches to the initial status of monitor mode 275
- Push the return bs3 button once to display first digit of malfunction code 275
- Push the set bs2 button and set the led display to a setting item 275
- Push the set bs2 button once to display malfunction location 275
- Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 275
- Push the set bs2 button once to display second digit of malfunction code 275
- Service check function sibe18 621 275
- To enter the monitor mode push the mode bs1 button when in setting mode 1 275
- Troubleshooting 275
- Sibe18 621 service check function 276
- Troubleshooting 265 276
- Detail description on next page 277
- Push the mode bs1 button and returns to setting mode 1 277
- Push the return bs3 button and switches to the initial status of monitor mode 277
- Push the return bs3 button once to display first digit of malfunction code 277
- Push the set bs2 button and set the led display to a setting item 277
- Push the set bs2 button once to display malfunction location 277
- Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 277
- Push the set bs2 button once to display second digit of malfunction code 277
- Service check function sibe18 621 277
- To enter the monitor mode push the mode bs1 button when in setting mode 1 277
- Troubleshooting 277
- Sibe18 621 service check function 278
- Troubleshooting 267 278
- List of malfunction code 279
- The system operates for malfunction codes indicated in black squares however be sure to check and repair 280
- Indoor unit pcb abnormality 281
- Troubleshooting for ra indoor unit 281
- Freeze up protection control or high pressure control 282
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 283
- Check no 6 refer to p 79 283
- Troubleshooting 283
- Troubleshooting for ra indoor unit sibe18 621 283
- Ac motor wall 20 35 c series duct floor ceiling 284
- Check no 6 refer to p 80 284
- Detection error due to faulty control pcb 284
- Fan motor or related abnormality 284
- Malfunction decision conditions 284
- Method of malfunction detection 284
- Operation halt due to breaking of the fan motor lead wires 284
- Operation halt due to breaking of wire inside the fan motor 284
- Operation halt due to faulty capacitor of the fan motor 284
- Operation halt due to short circuit inside the fan motor winding 284
- Remote controller display 284
- Supposed causes 284
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 284
- Troubleshooting 284
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 284
- Dc motor wall 20 35 d series and 50 71 class floor 285
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 286
- Check no 1 refer to p 78 286
- Check no 2 refer to p 78 286
- Sibe18 621 troubleshooting for ra indoor unit 286
- Troubleshooting 286
- Troubleshooting 275 286
- Thermistor or related abnormality indoor unit 287
- Check no 3 refer to p 78 288
- Detection error by broken relay harness or disconnected connector 288
- Detection error due to defective pcb 2 288
- Foreign substance in blow port 288
- Malfunction decision conditions 288
- Method of malfunction detection 288
- Remote controller display 288
- Shutter drive motor defective 288
- Shutter drive motor shutter limit switch abnormality 288
- Shutter itself deformed warped 288
- Shutter limit switch defective 288
- Shutter s sealing material too thick 288
- Sibe18 621 troubleshooting for ra indoor unit 288
- Supposed causes 288
- 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 288
- Troubleshooting 288
- Troubleshooting 277 288
- When the shutter is open the limit switch is closed 288
- 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 1 289
- Check no 2 1 check connector connection 2 check motor control voltage output pins 2 1 289
- Check no 3 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 289
- Fan motor connector output check 289
- Limit switch continuity check 289
- The shutter can be opened and closed with hand keep the shutter open and closed all the way for each continuity check steps 289
- Troubleshooting 289
- Troubleshooting for ra indoor unit sibe18 621 289
- Check no 6 remove the connectors of the thermistors on the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the graph and the table below 290
- Thermistor resistance check 290
- Hall ic check 291
- Indoor unit pcb abnormality 292
- Troubleshooting for skyair indoor unit 292
- Malfunction of drain water level system float type 293
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 294
- Sibe18 621 troubleshooting for skyair indoor unit 294
- Troubleshooting 294
- Troubleshooting 283 294
- Applicable models fhq bu 295
- Error in drain pipe installation 295
- Faulty float switch 295
- Faulty indoor unit pcb 295
- Malfunction decision conditions 295
- Malfunction of drain system 295
- Method of malfunction detection 295
- Remote controller display 295
- Supposed causes 295
- Troubleshooting 295
- Troubleshooting for skyair indoor unit sibe18 621 295
- Water leakage is detected based on float switch on off operation while the compressor is in non operation 295
- When the float switch changes from on to off while the compressor is in non operation 295
- Indoor unit fan motor lock 296
- Malfunction of indoor unit fan motor 297
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 298
- Check for the fan motor connector 298
- Check no 01 298
- Check no 1 refer to p 98 298
- Connect correctly 298
- Remove the foreign matter 298
- Replace the fan motor 298
- Sibe18 621 troubleshooting for skyair indoor unit 298
- Troubleshooting 298
- Troubleshooting 287 298
- Turn off the power supply 298
- Yes replace the indoor unit pcb 298
- Swing flap motor malfunction lock 299
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 300
- Sibe18 621 troubleshooting for skyair indoor unit 300
- Troubleshooting 300
- Troubleshooting 289 300
- Malfunction of capacity setting 301
- Malfunction of heat exchanger thermistor r2t 302
- Malfunction of heat exchanger thermistor r3t 303
- Malfunction of suction air thermistor 304
- Malfunction of remote controller thermistor 305
- Applicable models ffq b fhq bu 306
- Connection of 2 master remote controllers when using 2 remote controllers 306
- Failure of indoor pcb 306
- Failure of remote controller 306
- Malfunction decision conditions 306
- Method of malfunction detection 306
- Microcomputer checks if transmission between indoor unit and remote controller is normal 306
- Outside cause noise etc 306
- Remote controller display 306
- Sibe18 621 troubleshooting for skyair indoor unit 306
- Supposed causes 306
- Transmission error between indoor unit and remote controller 306
- Troubleshooting 306
- Troubleshooting 295 306
- When transmission is not carried out normally for a certain amount of time 306
- Applicable models ffq b fhq bu 307
- Connection among sub remote controllers 307
- Faulty remote controller pcb 307
- In case of controlling with 2 remote controller check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal 307
- Malfunction decision conditions 307
- Method of malfunction detection 307
- Normal transmission does not continue for specified period 307
- Remote controller display 307
- Supposed causes 307
- Transmission error between main and sub remote controller 307
- Transmission error between main remote controller and sub remote controller 307
- Troubleshooting 307
- Troubleshooting for skyair indoor unit sibe18 621 307
- Applicable models ffq b fhq bu 308
- Faulty remote controller wiring 308
- Incorrect field setting 308
- Indoor outdoor bp transmission line 308
- Malfunction decision conditions 308
- Malfunction of field setting switch 308
- Method of malfunction detection 308
- Remote controller display 308
- Sibe18 621 troubleshooting for skyair indoor unit 308
- Supposed causes 308
- Troubleshooting 308
- Troubleshooting 297 308
- Check no 01 check for fan motor connector power supply line 1 turn the power supply off with the relay connector disconnected measure the resistance between uvw phases of the connector 3 cores at the motor side then make sure that the resistance between each phase is balanced and not short circuited 309
- Troubleshooting 309
- Troubleshooting for skyair indoor unit sibe18 621 309
- Check no 02 check for thermistors 310
- Disconnect the thermistor connector from pcb then measure the resistance by using a tester 310
- Detection by checking continuity and lack of connector 311
- Faulty harness of electronic expansion valve 311
- Incorrect connectors connection of electronic expansion valve 311
- Malfunction decision conditions 311
- Malfunction is determined by no common voltage applied when turning the power supply on 311
- Malfunction of electronic expansion valve 311
- Method of malfunction detection 311
- Remote controller display 311
- Supposed causes 311
- Troubleshooting 311
- Troubleshooting for bp unit 311
- Faulty bp unit pcb 312
- Faulty bp liquid or gas pipe temperature sensor 313
- Faulty bp liquid or gas pipe thermistor 313
- Faulty connectors connection of bp liquid or gas pipe temperature sensor 313
- Malfunction decision conditions 313
- Method of malfunction detection 313
- Remote controller display 313
- Supposed causes 313
- Troubleshooting 313
- When the bp liquid or gas pipe temperature sensor became short circuited or open 313
- Transmission error between indoor unit and bp unit 314
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 315
- Check no 4 refer to p 06 315
- Troubleshooting 315
- Troubleshooting for bp unit sibe18 621 315
- Check no 4 refer to p 06 316
- Distortion of power supply wave 316
- Faulty bp unit pcb 316
- Faulty outdoor unit pcb 316
- Faulty outdoor unit power supply 316
- Incorrect connection of transmission wire 316
- Malfunction decision conditions 316
- Method of malfunction detection 316
- Outdoor unit indication 316
- Sibe18 621 troubleshooting for bp unit 316
- Supposed causes 316
- Transmission error between outdoor unit and bp unit 316
- Transmission error is detected when the outdoor unit could not received the data from bp unit correctly 316
- Troubleshooting 316
- Troubleshooting 305 316
- When the data from bp unit could not be correctly received continuously for 10 minutes 316
- Power supply waveforms check 317
- Faulty outdoor unit pcb 318
- Troubleshooting for outdoor unit 318
- Actuation of high pressure switch 319
- 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge as to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on page 357 2 make a comparison between the high pressure value checked with the service checker and the voltage of the pressure sensor see 1 3 make measurement of voltage of the pressure sensor 320
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 320
- Check no 1 refer to p 52 320
- Sibe18 621 troubleshooting for outdoor unit 320
- Troubleshooting 320
- Troubleshooting 309 320
- Actuation of low pressure sensor 321
- 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge as to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on page 357 2 make a comparison between the low pressure value checked with the service checker and the voltage of the pressure sensor see 1 3 make measurement of voltage of the pressure sensor 322
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 322
- Check no 2 refer to p 53 322
- Sibe18 621 troubleshooting for outdoor unit 322
- Troubleshooting 322
- Troubleshooting 311 322
- Applicable models aii outdoor unit models 323
- Compressor lock 323
- Compressor motor lock 323
- Faulty inverter pcb 323
- High differential pressure 0 mpa or more 323
- Incorrect uvw wiring 323
- Inverter pcb takes the position signal from uvw line connected between the inverter and compressor and the malfunction is detected when any abnormality is observed in the phase current waveform 323
- Malfunction decision conditions 323
- Method of malfunction detection 323
- Remote controller display 323
- Stop valve is left in closed 323
- Supposed causes 323
- This malfunction will be output when the inverter compressor motor does not start up even in forced startup mode 323
- Troubleshooting 323
- Troubleshooting for outdoor unit sibe18 621 323
- Applicable models aii outdoor unit models 324
- Check no 3 refer to p 54 324
- Clearing condition operate for 5 minutes normal 324
- Fan does not run due to foreign matters tangled 324
- Malfunction decision conditions 324
- Malfunction of fan motor 324
- Malfunction of fan motor system is detected according to the fan speed detected by hall ic when the fan motor runs 324
- Malfunction of outdoor unit fan motor 324
- Method of malfunction detection 324
- Remote controller display 324
- Sibe18 621 troubleshooting for outdoor unit 324
- Supposed causes 324
- The harness connector between fan motor and pcb is left in disconnected or faulty connector 324
- Troubleshooting 324
- Troubleshooting 313 324
- When malfunction is generated 4 times the system shuts down 324
- When the fan runs with speed less than a specified one for 6 seconds or more when the fan motor running conditions are met 324
- Malfunction of moving part of electronic expansion valve y1e y3e 325
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 326
- Sibe18 621 troubleshooting for outdoor unit 326
- Troubleshooting 326
- Troubleshooting 315 326
- Abnormal discharge pipe temperature 327
- Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor 327
- Applicable models aii outdoor unit models 327
- Faulty connection of discharge pipe temperature sensor 327
- Faulty discharge pipe temperature sensor 327
- Faulty outdoor unit pcb 327
- Malfunction decision conditions 327
- Method of malfunction detection 327
- Refer to thermistor resistance temperature characteristics table on p355 327
- Remote controller display 327
- Supposed causes 327
- Troubleshooting 327
- Troubleshooting for outdoor unit sibe18 621 327
- When the discharge pipe temperature rises to an abnormally high level when the discharge pipe temperature rises suddenly 327
- Refrigerant overcharged 328
- Applicable models aii outdoor unit models 329
- Defect of outdoor unit pcb a1p 329
- Defect of thermistor r1t for outdoor air 329
- Malfunction decision conditions 329
- Malfunction is detected from the temperature detected by the outdoor air thermistor 329
- Malfunction of thermistor for outdoor air r1t 329
- Method of malfunction detection 329
- Refer to thermistor resistance temperature characteristics table on p355 329
- Remote controller display 329
- Supposed causes 329
- Troubleshooting 329
- Troubleshooting for outdoor unit sibe18 621 329
- When the outside air temperature thermistor has short circuit or open circuit 329
- Applicable models aii outdoor unit models 330
- Defect of outdoor unit pcb a1p 330
- Defect of thermistor r2t for outdoor unit discharge pipe 330
- Malfunction decision conditions 330
- Malfunction is detected from the temperature detected by discharge pipe temperature thermistor 330
- Malfunction of discharge pipe thermistor r2t 330
- Method of malfunction detection 330
- Refer to thermistor resistance temperature characteristics table on p355 330
- Remote controller display 330
- Sibe18 621 troubleshooting for outdoor unit 330
- Supposed causes 330
- Troubleshooting 330
- Troubleshooting 319 330
- When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected 330
- Applicable models aii outdoor unit models 331
- Defect of outdoor unit pcb a1p 331
- Defect of thermistor r3t r5t for outdoor unit suction pipe 331
- Malfunction decision conditions 331
- Malfunction is detected from the temperature detected by the thermistor for suction pipe 1 2 331
- Malfunction of thermistor r3t r5t for suction pipe1 2 331
- Method of malfunction detection 331
- Refer to thermistor resistance temperature characteristics table on p355 331
- Remote controller display 331
- Supposed causes 331
- Troubleshooting 331
- Troubleshooting for outdoor unit sibe18 621 331
- When a short circuit or an open circuit in the thermistor for suction pipe 1 2 are detected 331
- Applicable models aii outdoor unit models 332
- Defect of outdoor unit pcb a1p 332
- Defect of thermistor r4t for outdoor unit heat exchanger 332
- Malfunction decision conditions 332
- Malfunction is detected from the temperature detected by the heat exchanger thermistor 332
- Malfunction of thermistor r4t for outdoor unit heat exchanger 332
- Method of malfunction detection 332
- Refer to thermistor resistance temperature characteristics table on p355 332
- Remote controller display 332
- Sibe18 621 troubleshooting for outdoor unit 332
- Supposed causes 332
- Troubleshooting 332
- Troubleshooting 321 332
- When a short circuit or an open circuit in the heat exchange thermistor is detected 332
- Applicable models aii outdoor unit models 333
- Defect of outdoor unit pcb a1p 333
- Defect of thermistor r7t for outdoor unit liquid pipe 333
- Malfunction decision conditions 333
- Malfunction is detected from the temperature detected by the liquid pipe thermistor 333
- Malfunction of thermistor r7t for outdoor unit liquid pipe 333
- Method of malfunction detection 333
- Refer to thermistor resistance temperature characteristics table on p355 333
- Remote controller display 333
- Supposed causes 333
- Troubleshooting 333
- Troubleshooting for outdoor unit sibe18 621 333
- When a short circuit or an open circuit in the heat exchange thermistor is detected 333
- Applicable models aii outdoor unit models 334
- Faulty outdoor unit pcb 334
- Faulty subcooling heat exchanger gas pipe thermistor r6t 334
- Malfunction decision conditions 334
- Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor 334
- Malfunction of subcooling heat exchanger thermistor r6t 334
- Method of malfunction detection 334
- Refer to thermistor resistance temperature characteristics table on p355 334
- Remote controller display 334
- Sibe18 621 troubleshooting for outdoor unit 334
- Supposed causes 334
- Troubleshooting 334
- Troubleshooting 323 334
- When the subcooling heat exchanger gas pipe thermistor is short circuited or open 334
- 1 voltage measurement point 335
- 2 refer to pressure sensor pressure voltage characteristics table on p357 335
- Applicable models aii outdoor unit models 335
- Connection of low pressure sensor with wrong connection 335
- Defect of high pressure sensor 335
- Defect of outdoor unit pcb 335
- Malfunction decision conditions 335
- Malfunction is detected from the pressure detected by the high pressure sensor 335
- Malfunction of high pressure sensor 335
- Method of malfunction detection 335
- Remote controller display 335
- Supposed causes 335
- Troubleshooting 335
- Troubleshooting for outdoor unit sibe18 621 335
- When the high pressure sensor is short circuit or open circuit 335
- Malfunction of low pressure sensor 336
- Malfunction of pcb 337
- Malfunction of inverter radiating fin temperature rise 338
- Applicable models aii outdoor unit models 339
- Compressor start up malfunction mechanical lock 339
- Defect of compressor coil disconnected defective insulation 339
- Defect of inverter pcb 339
- Higher voltage than actual is displayed when the inverter output voltage is checked by tester 339
- Inverter compressor abnormal 339
- Malfunction decision conditions 339
- Malfunction is detected from current flowing in the power transistor 339
- Method of malfunction detection 339
- Remote controller display 339
- Supposed causes 339
- Troubleshooting 339
- Troubleshooting for outdoor unit sibe18 621 339
- When an excessive current flows in the power transistor instantaneous overcurrent also causes activation 339
- Applicable models aii outdoor unit models 340
- Compressor coil disconnected 340
- Compressor overload 340
- Defect of outdoor unit pcb a1p 340
- Inverter current abnormal 340
- Malfunction decision conditions 340
- Malfunction is detected by current flowing in the power transistor 340
- Method of malfunction detection 340
- Remote controller display 340
- Sibe18 621 troubleshooting for outdoor unit 340
- Supposed causes 340
- Troubleshooting 340
- Troubleshooting 329 340
- When overload in the compressor is detected 340
- Applicable models aii outdoor unit models 341
- Defect of compressor 341
- Defect of outdoor unit pcb a1p 341
- Inverter start up error 341
- Malfunction decision conditions 341
- Malfunction is detected from current flowing in the power transistor 341
- Method of malfunction detection 341
- Pressure differential start 341
- Remote controller display 341
- Supposed causes 341
- Troubleshooting 341
- Troubleshooting for outdoor unit sibe18 621 341
- When overload in the compressor is detected during startup 341
- Malfunction of transmission between inverter and control pcb 342
- High voltage of capacitor in main inverter circuit 343
- Malfunction of inverter radiating fin temperature rise sensor 344
- Faulty combination of inverter and fan driver 345
- Low pressure drop due to refrigerant shortage or electronic expansion valve failure 346
- 1 refer to thermistor resistance temperature characteristics table on p355 2 refer to pressure sensor pressure voltage characteristics table on p357 347
- 2 voltage measurement point 347
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 347
- Troubleshooting 347
- Troubleshooting for outdoor unit sibe18 621 347
- Power supply insufficient or instantaneous failure 348
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 349
- Check no 3 refer to p 54 349
- Troubleshooting 349
- Troubleshooting for outdoor unit sibe18 621 349
- Check operation not executed 350
- Malfunction of transmission between indoor units and outdoor units 351
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 352
- Sibe18 621 troubleshooting for outdoor unit 352
- Troubleshooting 352
- Troubleshooting 341 352
- Applicable models aii indoor unit models 353
- Connection of two main remote controllers when using 2 remote controllers 353
- Defect of indoor unit pcb 353
- Defect of remote controller pcb 353
- In case of controlling with 2 remote controller check the system using microcomputer is signal transmission between indoor unit and remote controller main and sub is normal 353
- Malfunction decision conditions 353
- Malfunction of indoor unit remote controller transmission 353
- Malfunction of transmission between remote controller and indoor unit 353
- Malfunction of transmission caused by noise 353
- Method of malfunction detection 353
- Normal transmission does not continue for specified period 353
- Remote controller display 353
- Supposed causes 353
- Troubleshooting 353
- Troubleshooting for outdoor unit sibe18 621 353
- Applicable models aii indoor unit models 354
- Connection between sub remote controllers 354
- Defect of remote controller pcb 354
- In case of controlling with 2 remote controller check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal 354
- Malfunction decision conditions 354
- Malfunction of transmission between main and sub remote controller 354
- Malfunction of transmission between main and sub remote controllers 354
- Method of malfunction detection 354
- Normal transmission does not continue for specified period 354
- Remote controller display 354
- Sibe18 621 troubleshooting for outdoor unit 354
- Supposed causes 354
- Troubleshooting 354
- Troubleshooting 343 354
- Malfunction of transmission between indoor and outdoor units in the same system 355
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 356
- Sibe18 621 troubleshooting for outdoor unit 356
- Troubleshooting 356
- Troubleshooting 345 356
- Applicable models aii indoor unit models 357
- Defect of outdoor unit pcb a1p 357
- Excess of connected indoor units 357
- Excessive number of indoor units 357
- Malfunction decision conditions 357
- Method of malfunction detection 357
- Mismatching of the refrigerant type of indoor and outdoor unit 357
- Remote controller display 357
- Setting of outdoor pcb was not conducted after replacing to spare parts pcb 357
- Supposed causes 357
- The number of indoor units that can be connected to a single outdoor unit system depends on the type of outdoor unit 357
- Troubleshooting 357
- Troubleshooting for outdoor unit sibe18 621 357
- Address duplication of central remote controller 358
- Malfunction of transmission between central remote controller and indoor unit 359
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 360
- Sibe18 621 troubleshooting for outdoor unit 360
- Troubleshooting 360
- Troubleshooting 349 360
- Applicable models all indoor unit models all outdoor unit models 361
- Defect of indoor unit pc board 361
- Failure to execute check operation 361
- Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units 361
- Malfunction decision conditions 361
- Method of malfunction detection 361
- Note wiring check operation may not be successful if carried out after the outdoor unit has been off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour 361
- On check operation the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature 361
- Remote controller display 361
- Stop valve is left in closed 361
- Supposed causes 361
- System is not set yet 361
- The malfunction is determined as soon as the abnormality aforementioned is detected through checking the system for any erroneous connection of units on the check operation 361
- Troubleshooting 361
- Troubleshooting for outdoor unit sibe18 621 361
- Applicable models all indoor unit models all outdoor unit models 362
- Defect of indoor unit pcb 362
- Defect of outdoor unit pcb a1p 362
- Improper connection of transmission wiring between outdoor unit and outdoor unit outside control adaptor 362
- Malfunction decision conditions 362
- Malfunction of system refrigerant system address undefined 362
- Method of malfunction detection 362
- Remote controller display 362
- Sibe18 621 troubleshooting for outdoor unit 362
- Supposed causes 362
- Troubleshooting 362
- Troubleshooting 351 362
- Check no 1 check for causes of rise in high pressure referring to the fault tree analysis fta shown below probe the faulty points 363
- Check sibe18 621 363
- Troubleshooting 363
- Check no 2 check for causes of drop in low pressure referring to the fault tree analysis fta shown below probe the faulty points 364
- Sibe18 621 check 364
- Troubleshooting 353 364
- Check no 03 check for fan motor connector 1 turn the power supply off 2 with the fan motor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table 365
- Indoor unit for air suction r1t for liquid pipe r2t for gas pipe r3t 366
- Outdoor unit for fin thermistor r1t 366
- Outdoor unit for outdoor air r1t for suction pipe 1 r3t for heat exchanger r4t for suction pipe 2 r5t for subcooling heat exchanger outlet r6t for liquid pipe r7t 366
- Sibe18 621 thermistor resistance temperature characteristics 366
- Thermistor resistance temperature characteristics 366
- Troubleshooting 355 366
- Outdoor unit thermistors for discharge pipe r2t 367
- Thermistor resistance temperature characteristics sibe18 621 367
- Troubleshooting 367
- Pressure sensor 368
- Method of replacing the inverter s power transistors modules 369
- Faulty compressor ground fault ground leakage 370
- Faulty fan motor ground leakage 370
- Power module checking 370
- Sibe18 621 method of replacing the inverter s power transistors modules 370
- The following abnormalities are also doubted besides the pc board abnormality 370
- There needs to be none of each value variation 370
- Troubleshooting 359 370
- When using the digital type of multiple tester make measurement in diode check mode 370
- Part 9 appendix 372
- Piping diagrams 62 372
- Wiring diagrams 69 372
- Appendix 373
- Outdoor units 373
- Piping diagrams 373
- Piping diagrams sibe18 621 373
- Rmxs112 140 160e7v3b 373
- Appendix 363 374
- Bp units 374
- Bpmks967b2b 374
- Bpmks967b3b 374
- D048285a 374
- D048286b 374
- Sibe18 621 piping diagrams 374
- Appendix 375
- Ftxs20 25 35cavmb ftxs50 60ev1b 375
- Ftxs20 25 35d3vmw l ftxs50d2v1w l 375
- Indoor units 375
- Piping diagrams sibe18 621 375
- Wall mounted type 375
- Appendix 365 376
- Duct connected type 376
- Fdxs25 35cavmb fdxs50 60cvmb fdxs25 35eavmb 376
- Ftxs71ev1b ftxs71bavmb 376
- Sibe18 621 piping diagrams 376
- Thermistor on heat exch 376
- Appendix 377
- Floor ceiling suspended dual type 377
- Flxs25 35bavmb flxs50 60bavmb 377
- Piping diagrams sibe18 621 377
- Appendix 367 378
- Floor standing type 378
- Fvxs25 35bavmb 378
- Fvxs50bavmb 378
- Sibe18 621 piping diagrams 378
- Appendix 379
- C1220t 0 379
- Ceiling mounted cassette type 379
- Ceiling suspended type 379
- Ffq25 35 50 60b8v1b 379
- Ffq25 35b8v1b 379
- Ffq50 60b8v1b 379
- Fhq35 50 60bvv1b 379
- Field piping 379
- Indoor unit 379
- Piping diagrams sibe18 621 379
- To outdoor unit 379
- Outdoor units 380
- Rmxs112 140 160e7v3b 380
- Wiring diagrams 380
- Appendix 381
- Bp units 381
- Bpmks967b2b 381
- Bpmks967b3b 381
- D048565b 381
- D048566a 381
- Wiring diagrams sibe18 621 381
- Ftxs20 25 35cavmb 382
- Ftxs20 25 35d3vmw l 382
- Indoor units 382
- Wall mounted type 382
- Appendix 383
- Brn red 383
- Caution 383
- Controller 383
- Fg frame ground 383
- Field wiring 383
- Ftxs50 60 71ev1b ftxs71bavmb 383
- Ftxs50d2v1w l 383
- Fu fuse 383
- H1 h3 harness 383
- H1p h3p pilot lamp 383
- Indoor 383
- M1f fan motor 383
- M1s m2s swing motor pcb1 pcb5 printed circuit board 383
- Note that operation will restart automatically if 383
- On again turned off and then back 383
- Outdoor 383
- Protective earth 383
- R1t r2t thermistor 383
- Receiver 383
- Rectifier 383
- Remote 383
- S1 s38 connector 383
- S1w operation switch 383
- Signal 383
- The main power supply is 383
- Wireless 383
- Wiring diagrams sibe18 621 383
- X1m terminal strip 383
- Appendix 373 384
- D033909e 384
- D045012k 384
- Duct connected type 384
- Fdxs25 35cavmb fdxs50 60cvmb fdxs25 35eavmb 384
- Field wiring 384
- Floor ceiling suspended dual type 384
- Flxs25 35 50 60bavmb 384
- Sibe18 621 wiring diagrams 384
- Transmission 384
- Appendix 385
- Floor standing type 385
- Fvxs25 35 50bavmb 385
- Wiring diagrams sibe18 621 385
- Appendix 375 386
- Ceiling mounted cassette type 386
- Ffq25 35 50 60b8v1b 386
- Sibe18 621 wiring diagrams 386
- Appendix 387
- Ceiling suspended type 387
- Fhq35 50 60bvv1b 387
- Wiring diagrams sibe18 621 387
- Drawings flow charts 394
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