Daikin FTKS50D2V1L [262/359] Troubleshooting

Содержание

• Sibe12 728 p.1
• E series p.1
• Cooling only indoor unit p.2
• Outdoor unit p.2
• Heat pump indoor unit p.2
• Table of contents p.2
• Super multi nx e series p.2
• Specifications 4 p.3
• Part 4 function and control 9 p.3
• Part 3 printed circuit board connector wiring diagram 7 p.3
• Part 2 specifications 3 p.3
• Part 1 list of functions p.3
• Main functions 0 p.3
• List of functions p.3
• Introduction v p.3
• Function of main structural parts 7 p.3
• Control specification 2 p.3
• Printed circuit board connector wiring diagram 8 p.3
• Troubleshooting 32 p.4
• System configuration 02 p.4
• Problem symptoms and measures 26 3 service check function 27 p.4
• Part 6 service diagnosis 23 p.4
• Part 5 operation manual 01 p.4
• Instruction 03 p.4
• Code indication on the remote controller 31 p.4
• Caution for diagnosis 24 p.4
• Part 7 removal procedure 83 p.5
• Outdoor unit 84 p.5
• Others 22 p.5
• Index i p.5
• Drawings flow charts v p.5
• Check 73 p.5
• Wiring diagrams 35 p.5
• Piping diagrams 28 p.5
• Part 9 appendix 27 p.5
• Part 8 others 21 p.5
• Warning p.6
• Safety cautions p.6
• Introduction p.6
• Cautions regarding safety of workers p.6
• Warning p.7
• Caution p.7
• Warning p.8
• Cautions regarding safety of users p.8
• Warning p.9
• Caution p.9
• Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below p.10
• Caution p.10
• Used icons p.10
• Part 1 list of functions p.12
• List of functions p.12
• List of functions sibe12 728 p.13
• List of functions p.13
• Holding functions no functions p.13
• Cooling only models p.13
• Sibe12 728 list of functions p.14
• List of functions 3 p.14
• Holding functions no functions p.14
• List of functions sibe12 728 p.15
• List of functions p.15
• Holding functions no functions p.15
• Sibe12 728 list of functions p.16
• List of functions 5 p.16
• Holding functions no functions p.16
• List of functions sibe12 728 p.17
• List of functions p.17
• Holding functions no functions p.17
• Sibe12 728 list of functions p.18
• List of functions 7 p.18
• Holding functions no functions p.18
• Heat pump models p.18
• List of functions sibe12 728 p.19
• List of functions p.19
• Holding functions no functions p.19
• Sibe12 728 list of functions p.20
• List of functions 9 p.20
• Holding functions no functions p.20
• List of functions sibe12 728 p.21
• List of functions p.21
• Holding functions no functions p.22
• Sibe12 728 list of functions p.22
• List of functions 11 p.22
• List of functions sibe12 728 p.23
• List of functions p.23
• Holding functions no functions p.23
• Specifications 4 p.24
• Part 2 specifications p.24
• Wall mounted type 50hz 230v p.25
• Specifications sibe12 728 p.25
• Specifications p.25
• Indoor units cooling only p.25
• Specifications 15 p.26
• Sibe12 728 specifications p.26
• Hz 230v p.26
• Specifications p.27
• Hz 230v p.27
• Specifications sibe12 728 p.27
• Specifications 17 p.28
• Sibe12 728 specifications p.28
• Hz 230v p.28
• Specifications sibe12 728 p.29
• Specifications p.29
• Duct connected type 50hz 230v p.29
• Specifications 19 p.30
• Sibe12 728 specifications p.30
• Hz 230v p.30
• Specifications sibe12 728 p.31
• Specifications p.31
• Floor ceiling suspended dual type 50hz 230v p.31
• Specifications 21 p.32
• Sibe12 728 specifications p.32
• Floor standing type 50hz 230v p.32
• Specifications sibe12 728 p.33
• Specifications p.33
• Ceiling suspended type 50hz 230v p.33
• Specifications 23 p.34
• Sibe12 728 specifications p.34
• Outdoor units cooling only p.34
• Hz 230v p.34
• Wall mounted type p.35
• Specifications sibe12 728 p.35
• Specifications p.35
• Indoor units heat pump p.35
• Hz 230v p.35
• Specifications 25 p.36
• Sibe12 728 specifications p.36
• Hz 230v p.36
• Hz 230v p.37
• Specifications sibe12 728 p.37
• Specifications p.37
• Specifications 27 p.38
• Sibe12 728 specifications p.38
• Hz 230v p.38
• Specifications sibe12 728 p.39
• Specifications p.39
• Hz 230v p.39
• Specifications 29 p.40
• Sibe12 728 specifications p.40
• Hz 230v p.40
• Specifications sibe12 728 p.41
• Specifications p.41
• Duct connected type 50hz 230v p.41
• Sibe12 728 specifications p.42
• Hz 230v p.42
• Specifications 31 p.42
• Specifications sibe12 728 p.43
• Specifications p.43
• Floor ceiling suspended dual type 50hz 230v p.43
• Specifications 33 p.44
• Sibe12 728 specifications p.44
• Floor standing type 50hz 230v p.44
• Specifications sibe12 728 p.45
• Specifications p.45
• Ceiling suspended type 50hz 230v p.45
• Specifications 35 p.46
• Sibe12 728 specifications p.46
• Outdoor units heat pump p.46
• Hz 230v p.46
• Printed circuit board connector wiring diagram 8 p.48
• Part 3 printed circuit board connector wiring diagram p.48
• Wall mounted type p.49
• Printed circuit board connector wiring diagram p.49
• Ftk x s20 50d p.49
• Sibe12 728 printed circuit board connector wiring diagram p.50
• Printed circuit board connector wiring diagram 39 p.50
• Pcb detail pcb 1 control pcb p.50
• Pcb 4 intelligent eye sensor pcb p.50
• Pcb 2 signal receiver pcb pcb 3 display pcb p.50
• Ftk x s20 35c p.51
• Sibe12 728 printed circuit board connector wiring diagram p.52
• Printed circuit board connector wiring diagram 41 p.52
• Printed circuit board connector wiring diagram sibe12 728 p.53
• Printed circuit board connector wiring diagram p.53
• Pcb detail pcb 1 control pcb pcb 2 signal receiver pcb p.53
• Pcb 3 intelligent eye sensor pcb p.53
• Ftk x s50 71f p.54
• Printed circuit board connector wiring diagram sibe12 728 p.55
• Printed circuit board connector wiring diagram p.55
• Pcb detail pcb 1 control pcb indoor unit p.55
• Pcb 4 display pcb pcb 5 intelligent eye sensor pcb p.55
• Pcb 2 signal receiver pcb pcb 3 buzzer pcb p.55
• Ftxg25 35e ctxg50e p.56
• Printed circuit board connector wiring diagram sibe12 728 p.57
• Printed circuit board connector wiring diagram p.57
• Pcb detail pcb 1 control pcb indoor unit p.57
• Pcb 3 intelligent eye sensor pcb p.57
• Pcb 2 signal receiver pcb p.57
• Duct connected type p.58
• Pcb detail pcb 2 display pcb p.59
• Floor ceiling suspended dual type p.60
• Pcb 4 signal receiver pcb p.62
• Pcb 3 display pcb p.62
• Sibe12 728 printed circuit board connector wiring diagram p.62
• Printed circuit board connector wiring diagram 51 p.62
• Floor standing type p.63
• Sibe12 728 printed circuit board connector wiring diagram p.64
• Printed circuit board connector wiring diagram 53 p.64
• Pcb detail pcb 1 sensor pcb p.64
• Pcb 3 service pcb pcb 3 display pcb p.64
• Pcb 2 control pcb p.64
• Ceiling suspended type p.65
• Sibe12 728 printed circuit board connector wiring diagram p.66
• Printed circuit board connector wiring diagram 55 p.66
• Pcb detail p.66
• Ec0606 a p.66
• Outdoor units p.67
• Pcb detail pcb 1 main pcb p.68
• Pcb 2 service monitor pcb 5 room model p.68
• Sibe12 728 printed circuit board connector wiring diagram p.68
• Printed circuit board connector wiring diagram 57 p.68
• Part 4 function and control p.70
• Main functions 0 p.70
• Function of main structural parts 7 p.70
• Control specification 2 p.70
• Note see the list of functions for the functions applicable to different models p.71
• Main functions p.71
• Main control parameters the compressor is frequency controlled during normal operation the target frequency is set by the following 2 parameters coming from the operating indoor unit p.71
• Inverter principle to regulate the capacity a frequency control is needed the inverter makes it possible to vary the rotation speed of the compressor the following table explains the conversion principle p.71
• Initial settings p.71
• Frequency restrictions p.71
• Frequency principle p.71
• Forced cooling heating operation p.71
• Drawing of inverter the following drawing shows a schematic view of the inverter principle p.71
• Additional control parameters p.71
• The target frequency is adapted by additional parameters in the following cases p.71
• The load condition of the operating indoor unit p.71
• The difference between the room temperature and the set temperature p.71
• The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load p.72
• Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature p.72
• Inverter features the inverter provides the following features p.72
• Frequency limits the following table shows the functions that define the minimum and maximum frequency p.72
• Forced cooling heating operation for more information refer to forced operation mode on page 95 p.72
• Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor air temperature is 2 c p.72
• Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power p.72
• Comfortable air conditioning a detailed adjustment is integrated to ensure a fixed room temperature it is possible to air condition with a small room temperature variation p.72
• Power airflow dual flaps wide angle louvers and auto swing p.73
• The latest command has the priority between powerful and comfort airflow p.74
• The airflow rate is controlled automatically within the following steps cooling l tap mh tap same as automatic heating ml tap m tap p.74
• Ftk x s20 50d the vertical swing flap is controlled not to blow the air directly on the person in the room p.74
• Control flow p.75
• Timing chart p.75
• Operation starting control p.75
• Main functions sibe12 728 p.75
• Function and control p.75
• Ftxg25 35e ctxg50e the system carries out the following control at the beginning to conduct every functional parts properly 1 opening the front panel fully 2 output of the p.75
• D signal after the front panel starts moving 3 opening the flap fully after the front panel opens fully 4 making the fan rotate when the flap passes over the fan banned area p.75
• Within this range the airflow rate is automatically controlled when the fan setting button is set to automatic p.76
• The following drawing explains the principle of fan speed control for cooling p.76
• Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh in automatic operation the step sl is not available p.76
• On heating mode the indoor fan speed will be regulated according to the indoor heat exchanger temperature and the difference between the room temperature and the required set point p.76
• Note 1 fan stops during defrost operation 2 in time of thermostat off the fan rotates at the following speed cooling the fan keeps rotating at the set tap heating the fan stops p.76
• For more information about hall ic refer to the troubleshooting for fan motor on page 237 p.76
• Fan speed control for indoor units p.76
• 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 p.76
• Automatic air flow control for heating p.76
• Automatic air flow control for cooling p.76
• Zone c thermostat on p.77
• Zone b zone b p.77
• Zone a thermostat off p.77
• 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 p.77
• Programme dry function p.77
• 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 p.77
• Automatic operation p.78
• The operation turns on in any zones except a p.79
• The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds p.79
• Main functions sibe12 728 p.79
• Heating p.79
• Function and control p.79
• Floor standing type p.79
• Floor ceiling suspended type p.79
• Duct connected type p.79
• Wall mounted type p.79
• Cooling dry p.79
• Thermostat on condition p.79
• Thermostat off condition p.79
• Thermostat control is based on the difference between the room temperature and the setpoint p.79
• Thermostat control p.79
• The temperature difference is in the zone a p.79
• The temperature difference is above the zone c after being in the zone a p.79
• The system resumes from defrost control in any zones except a p.79
• Night set mode p.80
• Econo mode p.81
• Sibe12 728 main functions p.82
• Processing 1 detection method by intelligent eye p.82
• Intelligent eye wall mounted type only p.82
• In case of fan mode the fan speed reduces by 50 rpm p.82
• Function and control 71 p.82
• 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 p.82
• 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 shifted 2 c from the set temperature cooling 2 c higher dry 1 c higher and auto according to the operation mode at that time p.82
• This sensor detects human motion by receiving infrared rays and displays the pulse wave output p.82
• 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 p.82
• The motions for example in cooling p.82
• Home leave operation p.84
• Refer to fan speed control on page 65 for detail p.85
• 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 p.85
• Inverter powerful operation p.85
• In case of ftk x s20 50d p.85
• Ex powerful operation in cooling mode p.85
• Details of the control when powerful button is pushed in each operation mode the fan speed setting temperature will be converted to the following states in a period of 20 minutes p.85
• Note when the on off button is pressed for 10 sec or more the operation will be stopped see page 95 for the detail of forced operation mode p.86
• Hot start function p.86
• Heat pump only in order to prevent the cold air blast that normally comes when heating is started the temperature of the heat exchanger of the indoor unit is detected and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room the cold air blast is also prevented using a similar control when the defrosting operation is started or when the thermostat gets turned on p.86
• Forced operation mode will be set by pressing the on off button for between 5 to 9 sec while the unit is not operating p.86
• An on off button is provided on the front panel of the unit use this button when the remote controller is missing or if its battery has run out every press of the button switches from on to off or from off to on in case of ftk x s20 50d p.86
• When the indoor unit receives a signal from the remote controller the unit emits a signal receiving sound p.86
• This button is useful when the remote controller is missing p.86
• The operation mode refers to the following table p.86
• Signal receiving sign p.86
• Push this button once to start operation push once again to stop it p.86
• Other functions p.86
• On off button on indoor unit p.86
• Weekly timer operation p.87
• Titanium apatite photocatalytic air purifying filter p.87
• Self diagnosis digital display p.87
• Photocatalytic deodorizing filter p.87
• Mold proof air filter prefilter p.87
• Auto restart function p.87
• Air purifying filter with photocatalytic deodorizing function p.87
• Air purifying filter p.87
• Cooling only model p.88
• Sibe12 728 function of main structural parts p.88
• Note expansion valve in case of 4 port model eva d 5 port model eva e p.88
• Main structural parts p.88
• Heat pump model p.88
• Function of main structural parts p.88
• Function and control 77 p.88
• Heat pump model p.89
• Function of thermistor p.89
• Cooling only model p.91
• Mode hierarchy p.93
• Function and control p.93
• For cooling only model there are following models stop and cooling including drying p.93
• Determine operating mode judge the operating mode command set by each room in accordance with the instructing procedure and determine the operating mode of the system the following procedure will be taken as the modes conflict with each other 1 the system will follow the mode determined first first push first set 2 for the rooms set with different mode select stand by mode operation lamp flashes p.93
• Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting p.93
• Control specification sibe12 728 p.93
• Control specification p.93
• Outline there are two modes the mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service p.93
• Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation in case an indoor fan operation command is made the operation mode of an outdoor unit is stop mode a forced fan command to the indoor unit from the outdoor unit must be made during forced operation p.93
• Frequency control p.94
• For limiting lower limit frequency management is carried out only when the frequency rises 5 upper and lower limit of frequency by pi control the frequency upper and lower limits are set depending on the total of s values of a room when low noise commands come from the indoor unit more than one room or when outdoor unit low noise or quiet commands come from all the rooms the upper limit frequency must be lowered than the usual setting p.95
• Determine upper limit frequency p.95
• Determine prohibited frequency p.95
• Determine lower limit frequency p.95
• D value when the p.95
• D value of each room and a total value of q p.95
• D value obtaining the fixed p.95
• When starting the compressor or when conditions are varied due to the change of the operating room the frequency must be initialized according to the total of a maximum p.95
• D value is small lower the frequency when the p.95
• When each frequency is drooping frequency management is carried out only when the frequency droops p.95
• D value is large increase the frequency 3 limit of frequency variation width when the difference between input current and input current drooping value is less than 1 a the frequency increase width must be limited 4 frequency management when other controls are functioning p.95
• There is a certain prohibited frequency such as a power supply frequency p.95
• D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 i control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the p.95
• D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the p.95
• Th off thermostat off indoor unit capacity s value the capacity of the indoor unit is a s value and is used for frequency command p.95
• D signal and is used for frequency command p.95
• Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions compressor protection input current discharge pipes freeze up protection dew prevention fin thermistor temperature p.95
• D signal 1 p control calculate a total of the p.95
• Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep p.95
• Q of the operating room the room in which the thermostat is set to on q value indoor unit output determined from indoor unit volume air flow rate and other factors p.95
• Pi control determine frequency up down by p.95
• Indoor frequency command p.95
• Preheating operation p.96
• Four way valve switching p.96
• Four way valve operation compensation p.96
• Controls at mode changing start up p.96
• Compressor protection function p.96
• 3 minute stand by p.96
• Discharge pipe temperature control p.97
• Input current control p.97
• Heating peak cut control p.98
• Freeze up protection control p.98
• Liquid compression protection function 2 p.99
• Fan control p.99
• Defrost control p.100
• Electronic expansion valve control p.101
• Sibe12 728 control specification p.102
• Function and control 91 p.102
• Detail the followings are the examples of control which function in each mode by the electronic expansion valve control p.102
• Starting operation control changing operation room p.103
• Sc control p.103
• Pressure equalization control p.103
• Opening limit p.103
• Gas pipe isothermal control during cooling p.103
• Fully closing with power on p.103
• Target discharge pipe temperature control p.104
• Oil recovery function p.104
• High temperature of the discharge pipe p.104
• Disconnection of the discharge pipe thermistor p.104
• Control when frequency is changed p.104
• Sensor malfunction detection p.105
• Malfunctions p.105
• Insufficient gas control p.105
• Detection of overload and over current p.105
• Preventing indoor freezing p.106
• Outline forced operating mode includes functions such as forced cooling forced heating incorrect wiring incorrect piping check operating mode must be selected by operating the forced operation switch p.106
• Ii judgment by discharge pipe temperature when discharge pipe temperature is c higher than target value and the electronic expansion value opening is 450 pulses max the adjustment is made for insufficient gas p.106
• Forced operation mode p.106
• During cooling if the heat exchanger temperature in the operation stopped room becomes below the specified temperature for the specified time open the electronic expansion valve in the operation stopped room as specified and carry out the fully closed operation after this if freezing abnormality occurs more than specified time the system shall be down as the system abnormality p.106
• Detail i judgment by power consumption when an output frequency is exceeds 40 hz and the input current is less than specified value the adjustment is made for insufficient gas p.106
• Detail forced cooling forced heating only for heat pump model p.106
• Wiring error check p.107
• Those data can be checked by looking at the service monitor led indicators when the wiring error checking is over during forced operation at the stop of the system the led indicators stop flashing when the forced operation is over led1 room a wiring led2 room b wiring 1st flashing led port a piping 2nd flashing led port b piping the first stay on led means the room that is connected with port a the next stay on led means the one connected with port b p.108
• The above means that port a is connected with port b and port b with room a or self corrected this way p.108
• Sibe12 728 control specification p.108
• Function and control 97 p.108
• Example let s suppose the led indicators are flashing as follows p.108
• Checking the current setting data on the microcomputer memory p.108
• Voltage detection function p.109
• Priority room setting p.109
• Powerful operation mode p.109
• Connection pipe condensation preventing function p.109
• Additional function p.109
• Outline when installing in hotels you can make econo mode ineffective on the outdoor unit p.110
• Operation the econo mode can be switched over between effective and ineffective by pressing the forced operation switch sw1 and wiring error check switch sw3 at the same time and holding them for 5 seconds while the compressor is stopped the leds are lit in turn for 15 seconds to show the econo mode status the factory setting is effective p.110
• Econo mode proof setting p.110
• Cooling heating mode lock p.110
• The following specifications apply to the connector housing and pins jst products housing vhr 5n pin svh 21t 1 1 note that forced operation is also possible in cool heat mode p.110
• System configuration 02 p.112
• Part 5 operation manual p.112
• Instruction 03 p.112
• System configuration p.113
• Operation instructions p.113
• Manual contents and reference page p.114
• Instruction p.114
• Illustrations are for wall mounted type ftk x s50 60 71f as representative p.114
• Ftk x s ftxg ctxg fdk x s flk x s series p.114
• Warning p.115
• Safety precautions p.115
• Caution p.115
• Installation site p.116
• Electrical work p.116
• Consider nuisance to your neighbours from noises p.116
• System relocation p.116
• Names of parts p.117
• Indoor unit p.117
• Outdoor unit p.118
• Indoor unit p.118
• Remote controller p.119
• On off p.119
• Arc433b50 b4 p.119
• Names of parts p.120
• Indoor unit p.120
• Ftk x s 20 25 35 c p.120
• Outdoor unit p.121
• Indoor unit p.121
• Remote controller p.122
• Names of parts p.123
• Indoor unit p.123
• Outdoor unit p.124
• Indoor unit p.124
• 60 class 71 class p.124
• Remote controller p.125
• Arc433b70 7 p.125
• Names of parts p.126
• Indoor unit p.126
• Outdoor unit p.127
• Indoor unit p.127
• Remote controller p.128
• Names of parts p.129
• Indoor unit p.129
• Outdoor unit p.130
• Indoor unit p.130
• Remote controller p.131
• Arc433b69 b76 p.131
• Opening the front panel p.132
• Names of parts p.132
• Indoor unit p.132
• Flk x s 25 35 50 60 b p.132
• Caution p.132
• Outdoor unit p.133
• Indoor unit p.133
• Remote controller p.134
• On off p.134
• Arc433b67 b68 p.134
• To set the batteries p.135
• Preparation before operation p.135
• Preparation before operation p.136
• Place the remote controller in the remote controller holder p.136
• Choose a place from where the signals reach the unit p.136
• Attention p.136
• To operate the remote controller p.136
• To fix the remote controller holder on the wall p.136
• Use the air conditioner in the following conditions p.137
• Turn the breaker on p.137
• To set the clock p.137
• Tips for saving energy p.137
• The air conditioner always consumes 15 35 watts of electricity even while it is not operating p.137
• Press clock button p.137
• Please note p.137
• Operation outside this humidity or temperature range may cause a safety device to disable the system p.137
• If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off p.137
• Cover windows with a blind or a curtain blocking sunlight and air from outdoors increases the cooling heating effect p.137
• Clogged air filters cause inefficient operation and waste energy clean them once in about every two weeks p.137
• Be careful not to cool heat the room too much keeping the temperature setting at a moderate level helps save energy p.137
• To change the temperature setting p.138
• Auto dry cool heat fan operation p.138
• To stop operation p.138
• To start operation p.138
• To change the air flow rate setting p.139
• Press fan setting button p.139
• To adjust the vertical blades louvers p.140
• To adjust the horizontal blades flaps p.140
• Adjusting the air flow direction p.140
• Press comfort airflow button again p.141
• Press comfort airflow button p.141
• Notes on flaps and louvers angles p.141
• Notes on comfort airflow operation p.141
• In heat mode p.141
• In fan mode p.141
• In dry mode or cool mode p.141
• Cool dry the flap will go up heat the flap will go down p.141
• Always use a remote controller to adjust the flaps angle if you attempt to move it forcibly with hand when it is swinging the mechanism may be broken p.141
• To start comfort airflow operation p.141
• To cancel comfort airflow operation p.141
• When the flaps have reached the desired position press swing button once more p.142
• To adjust the horizontal blades flaps p.142
• Press swing button p.142
• Adjusting the air flow direction p.142
• To adjust the vertical blades louvers p.143
• Operation manual p.143
• Notes on flaps and louvers angles p.143
• Instruction sibe12 728 p.143
• To adjust the vertical blades louvers p.144
• To adjust the horizontal blade flap p.144
• Adjusting the air flow direction p.144
• Press either the swing button or the swing button p.145
• Notes on louvers angles p.145
• Notes on flap angle p.145
• To cancel 3 d airflow p.145
• To 3 d airflow p.145
• Press the swing button and the swing button the and display will light up and the flap and louvers will move in turn p.145
• To cancel 3 d airflow p.146
• To adjust the vertical blades louvers p.146
• To adjust the horizontal blade flap p.146
• To 3 d airflow p.146
• Adjusting the air flow direction p.146
• To start comfort airflow operation p.147
• To cancel comfort airflow operation p.147
• Press comfort airflow button again p.147
• Press comfort airflow button p.147
• Cool dry the flap will go up heat the flap will go down p.147
• To adjust the horizontal blade flap p.148
• Press swing button p.148
• Adjusting the air flow direction p.148
• When the flaps have reached the desired position press swing button once more p.148
• To adjust the vertical blades louvers p.149
• Operation manual p.149
• Notes on flap and louvers angles p.149
• Instruction sibe12 728 p.149
• Attention p.149
• To start powerful operation p.150
• To cancel powerful operation p.150
• Powerful operation p.150
• To start outdoor unit quiet operation p.151
• To cancel outdoor unit quiet operation p.151
• Outdoor unit quiet operation p.151
• To start econo operation p.152
• To cancel econo opera tion p.152
• Econo operation p.152
• Before using home leave operation p.153
• To start home leave operation p.153
• To cancel home leave operation p.153
• Home leave operation p.153
• What s the home leave operation p.154
• Useful in these cases p.154
• Use as an energy saving mode p.154
• Use as a favorite mode p.154
• To start intelligent eye operation p.155
• To cancel the intelligent eye operation p.155
• Intelligent eye operation p.155
• Notes on intelligent eye p.156
• Intelligent eye operation p.156
• Intelligent eye is useful for energy saving p.156
• Caution p.156
• Press sensor button p.157
• Intelligent eye operation p.157
• To start intelligent eye operation p.157
• To cancel the intelligent eye operation p.157
• Press sensor button again p.157
• To adjust the angle of the intelligent eye sensor p.158
• Notes on intelligent eye p.158
• Intelligent eye is useful for energy saving p.158
• Caution p.158
• To start intelligent eye operation p.159
• To cancel the intelligent eye operation p.159
• Press sensor button again p.159
• Press sensor button p.159
• Intelligent eye operation p.159
• Notes on intelligent eye p.160
• Intelligent eye is useful for energy saving p.160
• Caution p.160
• Intelligent eye operation p.161
• To start intelligent eye operation p.161
• To cancel the intelligent eye operation p.161
• Press sensor button again p.161
• Press sensor button p.161
• Notes on intelligent eye p.162
• Intelligent eye is useful for energy saving p.162
• Caution p.162
• To use off timer operation p.163
• To cancel the off timer operation p.163
• Timer operation p.163
• To cancel on timer operation p.164
• Press timer setting button until the time setting reaches the point you like p.164
• Press on timer button again p.164
• Press on timer button p.164
• Press cancel button p.164
• Attention p.164
• To use on timer operation p.164
• To combine on timer and off timer p.164
• What is a multi system p.165
• Selecting the operation mode p.165
• See priority room setting on the next page p.165
• Outdoor unit quiet operation p.165
• Operation manual p.165
• Note for multi system p.165
• Night quiet mode available only for cooling operation p.165
• Instruction sibe12 728 p.165
• Caution p.165
• Priority when using outdoor unit quiet operation p.166
• Priority when powerful operation is used p.166
• Priority room setting p.166
• Operation mode priority p.166
• Note for multi system p.166
• Indoor unit outdoor unit and remote controller p.167
• Front panel p.167
• Caution p.167
• Care and cleaning p.167
• Titanium apatite photocatalytic air purifying filte p.168
• Replacement p.168
• Maintenance p.168
• Filters p.168
• Air filter p.168
• Take out batteries from the remote controller p.169
• Operate the fan only for several hours on a fine day to dry out the inside p.169
• Clean the air filters and set them again p.169
• Before a long idle period p.169
• After operation stops turn off the breaker for the room air conditioner p.169
• Caution p.170
• Care and cleaning p.170
• Indoor unit outdoor unit and remote controller p.170
• Front panel p.170
• Replacement p.171
• Maintenance p.171
• Filters p.171
• Air purifying filter with photocatalytic deodorizing function gray p.171
• Air filter p.171
• Press on off button and start operation p.172
• Press mode button and select fan operation p.172
• Operate the fan only for several hours on a fine day to dry out the inside p.172
• Dispose of old filters as burnable waste p.172
• Clean the air filters and set them again p.172
• Before a long idle period p.172
• Air purifying filter with photocatalytic deodorizing function without frame 1 set p.172
• Air purifying filter with photocatalytic deodorizing function with frame 1 set p.172
• After operation stops turn off the breaker for the room air conditioner p.172
• Take out batteries from the remote controller p.172
• Wipe them with dry soft cloth p.173
• Remove the front panel p.173
• Open the front panel p.173
• Indoor unit outdoor unit and remote controller p.173
• Front panel p.173
• Clean the front panel p.173
• Caution p.173
• Care and cleaning p.173
• Before cleaning be sure to stop the operation and turn the breaker off p.173
• Attach the front panel p.173
• If it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent p.174
• Filters p.174
• Clean or replace each filter p.174
• Air filter p.174
• After washing shake off remaining water and dry in the shade 4 p.174
• Wash the air filters with water or clean them with vacuum cleaner p.174
• Titanium apatite photocatalytic air purifying filter p.174
• Take off the titanium apatite photocatalytic air purifying filter p.174
• Set the air filter and the titanium apatite photocatalytic air purifying filter as they were and close the front panel p.174
• Replacement p.174
• Remove the tabs on the filter frame and replace with a new filter p.174
• Remove dust with a vacuum cleaner and wash lightly with water 2 p.174
• Pull out the air filters p.174
• Open the front panel p.174
• Maintenance p.174
• Press mode button and select fan operation p.175
• Operate the fan only for several hours on a fine day to dry out the inside p.175
• Dispose of old filters as non flammable waste p.175
• Clean the air filters and set them again p.175
• Before a long idle period p.175
• After operation stops turn off the breaker for the room air conditioner p.175
• 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 p.175
• To order titanium apatite photocatalytic air purifying filter contact to the service shop there you bought the air conditioner p.175
• Titanium apatite photocatalytic air purifying filter without frame 1 set p.175
• Take out batteries from the remote controller p.175
• Press on off button and start operation p.175
• Indoor unit outdoor unit and remote controller p.176
• Front panel p.176
• Caution p.176
• Care and cleaning p.176
• Titanium apatite photocatalytic air purifying filte p.177
• Replacement p.177
• Maintenance p.177
• Filters p.177
• Air filter p.177
• Before a long idle period p.178
• After operation stops turn off the breaker for the room air conditioner p.178
• 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 p.178
• Take out batteries from the remote controller p.178
• Operate the fan only for several hours on a fine day to dry out the inside p.178
• Clean the air filters and set them again p.178
• Replacing the air filter p.179
• Removing the air filter p.179
• Only a qualified service person is allowed to perform maintenance p.179
• Fdk x s 25 35 c p.179
• Cleaning the air filter p.179
• Caution p.179
• Care and cleaning p.179
• Before cleaning be sure to stop the operation and turn the breaker off p.179
• Clean the air filters and set them again p.180
• Caution p.180
• Before a long idle period p.180
• After operation stops turn off the breaker for the room air conditioner p.180
• Take out batteries from the remote controller p.180
• Operate the fan only for several hours on a fine day to dry out the inside p.180
• Cleaning the drain pan p.180
• Replacing the air filter p.181
• Removing the air filter p.181
• Only a qualified service person is allowed to perform maintenance p.181
• Fdk x s 50 60 c fdk x s 25 35 e p.181
• Cleaning the air filter p.181
• Caution p.181
• Care and cleaning p.181
• Before cleaning be sure to stop the operation and turn the breaker off p.181
• Operate the fan only for several hours on a fine day to dry out the inside p.182
• Cleaning the drain pan p.182
• Clean the air filters and set them again p.182
• Caution p.182
• Before a long idle period p.182
• Turn off the breaker for the room air conditioner p.182
• Take out batteries from the remote controller p.182
• Wipe them with dry soft cloth p.183
• Open the front panel p.183
• Indoor unit outdoor unit and remote controller p.183
• Front panel p.183
• Close the front panel p.183
• Clean the front panel p.183
• Caution p.183
• Care and cleaning p.183
• Before cleaning be sure to stop the operation and turn the breaker off p.183
• Dry the photocatalytic deodorizing filter in the sun p.184
• Detach the filter element and attach a new one p.184
• Clean or replace each filter p.184
• Air purifying filter green p.184
• Air filter p.184
• Wash the air filters with water or clean them with vacuum cleaner p.184
• Take off the air purifying filter photocatalytic deodorizing filter p.184
• Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front panel p.184
• Replacement p.184
• Photocatalytic deodorizing filter gray p.184
• Open the front panel 2 pull out the air filters p.184
• Maintenance p.184
• Insert claws of the filters into slots of the front panel p.184
• Filters p.184
• Take out batteries from the remote controller p.185
• Operate the fan only for several hours on a fine day to dry out the inside p.185
• Clean the air filters and set them again p.185
• Before a long idle period p.185
• After operation stops turn off the breaker for the room air conditioner p.185
• These cases are not troubles p.186
• Case explanation p.186
• Troubleshooting p.186
• Trouble shooting p.186
• Check again p.187
• Case check p.187
• Are operation modes all the same for indoor units connected to outdoor units in the multi system if not set all indoor units to the same operation mode and confirm that the lamps flash moreover when the operation mode is in auto set all indoor unit operation modes to cool or heat for a moment and check again that the lamps are normal if the lamps stop flashing after the above steps there is no malfunction p.187
• We recommend periodical maintenance p.188
• Warning p.188
• Turn the breaker off and call the service shop p.188
• 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 p.188
• Disposal requirements p.188
• Call the service shop immediately p.188
• The code indication changes as shown below and notifies with a long beep p.189
• Operation manual p.189
• Instruction sibe12 728 p.189
• Fault diagnosis p.189
• Caution p.190
• Warning p.190
• Safety precautions p.190
• Fvxs series p.190
• System relocation p.191
• Installation site p.191
• Electrical work p.191
• Consider nuisance to your neighbours from noises p.191
• Opening the front panel p.192
• Names of parts p.192
• Indoor unit p.192
• Caution p.192
• Outdoor unit p.193
• Indoor unit p.193
• 35 class 50 class p.193
• 8 11 14 p.194
• 10 12 13 15 18 20 p.194
• Remote controller p.194
• To set the batteries p.195
• To operate the remote controller p.195
• To fix the remote controller holder on the wall p.195
• Preparation before operation p.195
• Attention p.195
• To set the clock p.196
• Preparation before operation p.196
• Turning on the breaker closes the flap this is a normal procedure p.197
• Turn the breaker on p.197
• Tips for saving energy p.197
• Please note p.197
• To stop operation p.198
• To start operation p.198
• To change the temperature setting p.198
• Auto dry cool heat fan operation p.198
• To change the air flow rate setting p.199
• Press fan setting button p.199
• To adjust the vertical blades louvers p.200
• To adjust the horizontal blade flap p.200
• Notes on flap and louvers angle p.200
• Adjusting the air flow direction p.200
• When setting the air outlet selection switch to p.201
• When setting the air flow selection switch to p.201
• Caution p.201
• Air flow selection p.201
• To start powerful operation p.202
• To cancel powerful operation p.202
• Powerful operation p.202
• To start outdoor unit quiet operation p.203
• To cancel outdoor unit quiet operation p.203
• Outdoor unit quiet operation p.203
• To start econo operation p.204
• To cancel econo operation p.204
• Econo operation p.204
• To use off timer operation p.205
• To cancel the off timer operation p.205
• Timer operation p.205
• To use on timer operation p.206
• To combine on timer and off timer p.206
• To cancel on timer operation p.206
• Timer operation p.206
• Attention p.206
• Weekly timer operation p.207
• To use weekly timer operation p.207
• Press select button to select the desired temperature p.208
• Press next button p.208
• Press button to complete the setting p.208
• Weekly timer operation p.208
• To cancel weekly timer operation p.209
• Press weekly button to deactivate the weekly operation p.209
• Weekly timer operation p.210
• Select the day of the week to be canceled with the select button p.210
• Press select button to select the day of the week and the reservation number to be confirmed p.210
• Press button p.210
• Hold the weekly button for 5 seconds p.210
• Confirming a reservation p.210
• Canceling individual reservations p.210
• Canceling all reservations p.210
• Setting weekly timer using copy mode p.211
• Press copy button p.211
• Press button 2 p.211
• Press button p.211
• Night quiet mode available only for cooling operation p.212
• Selecting the operation mode p.212
• Outdoor unit quiet operation p.212
• Note for multi system p.212
• Priority when using outdoor unit quiet operation p.213
• Priority when powerful operation is used p.213
• Priority room setting p.213
• Operation mode priority p.213
• Indoor unit outdoor unit and remote controller p.214
• Front panel p.214
• Caution p.214
• Care and cleaning p.214
• Titanium apatite photocatalytic air purifying filter p.215
• Replacement p.215
• Maintenance p.215
• Filters p.215
• Air filter p.215
• Take out batteries from the remote controller p.216
• Operate the fan only for several hours on a fine day to dry out the inside p.216
• Clean the air filters and set them again p.216
• Before a long idle period p.216
• After operation stops turn off the breaker for the room air conditioner p.216
• Troubleshooting p.217
• Trouble shooting p.217
• These cases are not troubles p.217
• Case explanation p.217
• Check again p.218
• Case check p.218
• Are operation modes all the same for indoor units connected to outdoor units in the multi system if not set all indoor units to the same operation mode and confirm that the lamps flash moreover when the operation mode is in auto set all indoor unit operation modes to cool or heat for a moment and check again that the lamps are normal if the lamps stop flashing after the above steps there is no malfunction page 24 p.218
• Turn the breaker off and call the service shop p.219
• 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 p.219
• Disposal requirements p.219
• Call the service shop immediately p.219
• We recommend periodical maintenance p.219
• Warning p.219
• When the timer cancel button is held down for 5 seconds a indication flashes on the temperature display section p.220
• To cancel the code display hold the timer cancel button down for 5 seconds the code display also cancel itself if the button is not pressed for 1 minute p.220
• Press the timer cancel button repeatedly until a continuous beep is produced the code indication changes as shown below and notifies with a long beep p.220
• In the arc452a series the temperature display sections on the main unit indicate corresponding codes p.220
• Fault diagnosis by remote controller p.220
• Fault diagnosis p.220
• A short beep and two consecutive beeps indicate non corresponding codes p.220
• Fhq series p.221
• What to do before operation p.222
• Safety considerations p.222
• Precautions for group control system or two remote controller control system p.222
• Names and functions of parts p.222
• Cooling p.224
• All wiring must be performed by an authorized electrician p.224
• Young children should be supervised to ensure that they do not play with the appliance p.224
• The setting temperature range of the remote con troller is 16 c to 32 c p.224
• Regarding wiring p.224
• Regarding places for installation p.224
• Operation range p.224
• Is the air conditioner installed at a well venti lated place where there are no obstacles around p.224
• Is a snow protection measure taken for details consult your dealer p.224
• Installation site p.224
• 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 p.224
• Heating p.224
• 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 p.224
• 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 p.224
• 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 p.224
• D b dry bulb temperature c wb wet bulb temperature c p.224
• Name and function of each switc p.225
• And display on the remote controller p.225
• Regarding drainage of drain piping p.225
• Pay attention to running noises too p.225
• Regarding outside air temperature and heat ing capacity p.226
• Press operation mode selector but ton several times and select the opera tion mode of your choice as follows p.226
• Press on off button p.226
• Operation procedure p.226
• Operation mode selec tor p.226
• On off p.226
• Explanation of heating operation p.226
• Defrost operation p.226
• Cooling heating automatic fan and program dry operation p.226
• Fan speed control p.227
• B left and right direction p.227
• Air flow direction adjust p.227
• Adjustment press the air flow direction adjust button to select the air direction as follow ing p.227
• A up and down direction p.227
• Temperature setting p.227
• Press temperature setting button and program the setting temperature p.227
• Press fan speed control button p.227
• Movement of the air flow flap p.227
• Timer on off p.228
• Timer mode start stop p.228
• Programming time p.228
• Program timer operation p.228
• Press the timer on off button p.228
• Press the timer mode start stop button several times and select the mode on the display p.228
• Press the programming time button and set the time for stopping or starting the sys tem p.228
• Optimum operation p.228
• Maintenance for service personnel p.229
• Important p.229
• How to clean the air filter p.229
• How to clean air outlet and out side panels p.230
• What to do when stopping the sys tem for a long period p.230
• Start up after a long stop p.230
• Not malfunction of the air conditioner p.230
• How to clean the suction grille p.230
• Trouble shooting p.232
• Operation lamp p.232
• Inspection display p.232
• Indoor unit no in which a malfunction occurs p.232
• Troubleshooting 32 p.234
• Problem symptoms and measures 26 3 service check function 27 p.234
• Part 6 service diagnosis p.234
• Code indication on the remote controller 31 p.234
• Check 73 p.234
• Caution for diagnosis 24 p.234
• Troubleshooting with operation lamp p.235
• Caution for diagnosis p.235
• Problem symptoms and measures p.237
• The temperature display sections on the main unit indicate corresponding codes p.238
• The code indication changes in the sequence shown below and notifies with a long beep p.238
• Service check function p.238
• Press the timer cancel button repeatedly until a continuous beep is produced p.238
• 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 p.238
• Check method 1 p.238
• Arc433 series 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section p.238
• Timer cancel button p.239
• The code indication changes in the sequence shown below and notifies with a long beep p.239
• Press the timer cancel button repeatedly until a continuous beep is produced p.239
• 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 p.239
• Arc452a series 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section p.239
• Check method 2 p.240
• Error codes and description of fault p.242
• Code indication on the remote controller p.242
• Varies depending on the cases p.243
• Troubleshooting p.243
• Not used for troubleshooting p.243
• Indoor units p.243
• Outdoor units p.244
• Indoor unit pcb abnormality p.245
• Freeze up protection control or high pressure control p.246
• Troubleshooting sibe12 728 p.247
• Troubleshooting p.247
• Service diagnosis p.247
• Note if the outside temperature is below 10 c in the cooling mode the system may get interrupted with error p.247
• Displayed the system will be reset itself but this stop will be put in the error history memory p.247
• Check no 6 refer to p 76 p.247
• Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.247
• Check no 6 refer to p 82 p.248
• Ac motor p.248
• When the detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed p.248
• Troubleshooting p.248
• The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation p.248
• Supposed causes p.248
• Remote controller display p.248
• Operation halt due to short circuit inside the fan motor winding p.248
• Operation halt due to faulty capacitor of the fan motor p.248
• Operation halt due to breaking of wire inside the fan motor p.248
• Operation halt due to breaking of the fan motor lead wires p.248
• Method of malfunction detection p.248
• Malfunction decision conditions p.248
• Fan motor or related abnormality p.248
• Detection error due to faulty control pcb p.248
• Dc motor p.249
• Caution p.250
• Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.250
• Troubleshooting p.250
• Sibe12 728 troubleshooting p.250
• Service diagnosis 239 p.250
• Check no 2 refer to p 73 p.250
• Check no 1 refer to p 73 p.250
• Thermistor or related abnormality indoor unit p.251
• The system will be shut down when the error occurs twice p.252
• Supposed causes p.252
• Remote controller display p.252
• Method of malfunction detection p.252
• Malfunction or deterioration of the front panel mechanism p.252
• Malfunction of the reduction motor p.252
• Malfunction of the limit switch p.252
• Malfunction decision conditions p.252
• Front panel open close fault p.252
• 1 pull the plug out or turn the breaker off 2 remove the decorative plate 3 remove the slot in panel 4 put the plug in or turn the breaker on wait until the initialization finishes 5 operate the unit by the indoor unit on off switch p.252
• Troubleshooting p.252
• When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal p.253
• Troubleshooting p.253
• The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal p.253
• Supposed causes p.253
• Signal transmission error between indoor and outdoor unit p.253
• Short circuit inside the fan motor winding p.253
• Remote controller display p.253
• Method of malfunction detection p.253
• Malfunction decision conditions p.253
• Indoor unit outdoor unit signal transmission error due to wiring error due to disturbed power supply waveform due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 p.253
• Faulty outdoor unit pcb faulty indoor unit pcb p.253
• Check no 0 refer to p 79 p.253
• Unspecified voltage between indoor and outdoor units p.254
• Freeze up protection control p.255
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.256
• Troubleshooting p.256
• Sibe12 728 troubleshooting p.256
• Service diagnosis 245 p.256
• Check no 6 refer to p 76 p.256
• Check no 4 refer to p 74 p.256
• Outdoor unit pcb abnormality p.257
• Method of malfunction detection p.258
• Malfunction decision conditions p.258
• If the compressor ol is activated twice the system will be shut down p.258
• Four way valve malfunctioning p.258
• Electronic expansion valve defective p.258
• Check no 6 refer to p 76 p.258
• Water mixed in the local piping p.258
• Troubleshooting p.258
• Check no 5 refer to p 75 p.258
• The operating temperature condition is not specified p.258
• Check no 4 refer to p 74 p.258
• The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time p.258
• Check no 1 refer to p 79 p.258
• Supposed causes p.258
• A compressor overload is detected through compressor ol p.258
• Stop valve defective p.258
• Remote controller display p.258
• Refrigerant shortage p.258
• Outdoor unit pcb defective p.258
• Outdoor unit led display a p.258
• Ol activation compressor overload p.258
• Judging from current waveform generated when high frequency voltage is applied to the compressor p.259
• Compressor locked p.259
• Compressor lock p.259
• Clearing condition continuous run for about 5 minutes normal p.259
• A compressor lock is detected by checking the compressor running condition through the position detection circuit p.259
• Troubleshooting p.259
• The system will be shut down if the error occurs 16 times p.259
• Supposed causes p.259
• Remote controller display p.259
• Outdoor unit led display a p.259
• Method of malfunction detection p.259
• Malfunction decision conditions p.259
• Dc fan lock p.260
• Input over current detection p.261
• Sibe12 728 troubleshooting p.262
• Service diagnosis 251 p.262
• Check no 8 refer to p 78 p.262
• Check no 7 refer to p 77 p.262
• Check no 4 refer to p 81 p.262
• Caution p.262
• Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.262
• Troubleshooting p.262
• Discharge pipe temperature control p.263
• High pressure control in cooling p.264
• Troubleshooting sibe12 728 p.265
• Troubleshooting p.265
• Service diagnosis p.265
• Check no 9 refer to p 78 p.265
• Check no 7 refer to p 77 p.265
• Check no 6 refer to p 76 p.265
• Check no 4 refer to p 74 p.265
• Caution p.265
• Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.265
• Compressor sensor system abnormality p.266
• Troubleshooting p.267
• Service diagnosis p.267
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.267
• Troubleshooting sibe12 728 p.267
• The compressor fails to start in about 15 seconds after the compressor run command signal is sent p.268
• Supposed causes p.268
• Stop valve closed p.268
• Remote controller display p.268
• Position sensor abnormality p.268
• Outdoor unit pcb defective p.268
• Outdoor unit led display a p.268
• Method of malfunction detection p.268
• Malfunction decision conditions p.268
• Input voltage out of specification p.268
• Compressor relay cable disconnected p.268
• Compressor itself defective p.268
• Clearing condition continuous run for about 5 minutes normal p.268
• Check no 3 refer to p 80 p.268
• Troubleshooting p.268
• A compressor startup failure is detected by checking the compressor running condition through the position detection circuit p.268
• The system will be shut down if the error occurs 8 times p.268
• Ct or related abnormality p.269
• Troubleshooting p.270
• Sibe12 728 troubleshooting p.270
• Service diagnosis 259 p.270
• Check no 2 refer to p 80 p.270
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.270
• Thermistor or related abnormality outdoor unit p.271
• Outdoor unit heat exchanger thermistor p.272
• Outdoor temperature thermistor p.272
• Liquid pipe thermistor p.272
• Gas pipe thermistor p.272
• Discharge pipe thermistor p.272
• Check no 6 refer to p 76 p.272
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.272
• Troubleshooting p.272
• Sibe12 728 troubleshooting p.272
• Service diagnosis 261 p.272
• Radiation fin thermistor p.272
• Electrical box temperature rise p.273
• Troubleshooting p.274
• Sibe12 728 troubleshooting p.274
• Service diagnosis 263 p.274
• Check no 9 refer to p 78 p.274
• Check no 7 refer to p 77 p.274
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.274
• Radiation fin temperature rise p.275
• Note refer to 1 application of silicon grease to a power transistor and a diode bridge on p 325 p.276
• Check no 9 refer to p 78 p.276
• Check no 7 refer to p 77 p.276
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.276
• Troubleshooting p.276
• Sibe12 728 troubleshooting p.276
• Service diagnosis 265 p.276
• Output over current detection p.277
• Troubleshooting p.278
• Sibe12 728 troubleshooting p.278
• Service diagnosis 267 p.278
• Check no 8 refer to p 78 p.278
• Check no 7 refer to p 77 p.278
• Check no 3 refer to p 80 p.278
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.278
• Insufficient gas p.279
• Service diagnosis 269 p.280
• Check no 6 refer to p 76 p.280
• Check no 4 refer to p 74 p.280
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred p.280
• Troubleshooting p.280
• Sibe12 728 troubleshooting p.280
• The system will be shut down if the error occurs 16 times p.281
• Supposed causes p.281
• Supply voltage not as specified p.281
• Short circuit inside the fan motor winding p.281
• Remote controller display p.281
• Pam control part s defective p.281
• Over voltage detector or dc voltage detection circuit defective p.281
• Outdoor unit led display a p.281
• Method of malfunction detection p.281
• Malfunction decision conditions p.281
• Low voltage detection or over voltage detection p.281
• Clearing condition continuous run for about 60 minutes normal p.281
• An over voltage signal is fed from the over voltage detection circuit to the microcomputer or the voltage being detected by the dc voltage detection circuit is judged to be below 150 v for 0 second p.281
• An abnormal voltage rise or drop is detected by checking the detection circuit or dc voltage detection circuit p.281
• Troubleshooting p.281
• Signal transmission error on outdoor unit pcb p.282
• Anti icing function in other rooms unspecified voltage between indoor and outdoor units p.283
• The shutter can be opened and closed with hand keep the shutter open and closed all the way for each continuity check steps p.284
• Limit switch continuity check p.284
• How to check p.284
• Fan motor connector output check p.284
• 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 p.284
• Check no 2 1 check connector connection 2 check motor control voltage output pins 2 1 p.284
• 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 p.284
• Note please note that the latching sound varies depending on the valve type p.285
• If latching sound is not generated the ev unit is faulty p.285
• If latching sound is generated the outdoor unit pcb is faulty p.285
• Electronic expansion valve check p.285
• Check no 4 conduct the followings to check the electronic expansion valve ev 1 check to see if the ev connector is correctly inserted in the pcb compare the ev unit and the connector number 2 turn the power off and back on again and check to see if all the evs generate latching sound 3 if any of the evs does not generate latching noise in the above step 2 disconnect that connector and check the conductivity using a tester check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 if there is no conductivity between the pins the ev coil is faulty 4 if no ev generates latching sound in the above step 2 the outdoor unit pcb is faulty 5 if the conductivity is confirmed in the above step 2 mount a good coil which generated latching sound in the ev unit that did not generate latching sound and check to see if that ev generates latching sound p.285
• Check no 5 p.286
• Sibe12 728 check p.286
• Service diagnosis 275 p.286
• Four way valve performance check p.286
• Thermistor resistance check p.287
• 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 p.287
• Sibe12 728 check p.288
• Service diagnosis 277 p.288
• Installation condition check p.288
• Check no 7 p.288
• Service diagnosis p.289
• Outdoor unit fan system check with dc motor p.289
• Discharge pressure check p.289
• Check sibe12 728 p.289
• Check no 9 p.289
• Check no 8 p.289
• Check no 0 measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance p.290
• Sibe12 728 check p.290
• Service diagnosis 279 p.290
• Power supply waveforms check p.290
• Inverter units refrigerant system check p.290
• Fig fig p.290
• Check to see if there is waveform disturbance near the zero cross sections circled in fig p.290
• Check to see if the power supply waveform is a sine wave fig p.290
• Check no 1 p.290
• Never touch any live parts for at least 10 minutes after turning off the circuit breaker p.291
• If unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 v using the tester p.291
• For the uvw make measurements at the faston terminal on the board or the relay connector p.291
• Checking the power transistor p.291
• Checking the capacitor voltage p.291
• Check no 3 p.291
• Check no 2 before this checking be sure to check the main circuit for short circuit p.291
• Capacitor voltage check p.291
• With the circuit breaker still on measure the voltage according to the drawing of the model in question be careful never to touch any live parts p.291
• Power transistor check p.291
• Turning speed pulse input on the outdoor unit pcb check p.292
• Main circuit electrolytic capacitor check p.292
• Hall ic check p.293
• Part 7 removal procedure p.294
• Outdoor unit 84 p.294
• Removal of outer panels p.295
• Outdoor unit p.295
• Removing the right side panel p.297
• Remove the 5 screws p.297
• Remove the 2 screws on the front and 1 screw on the right side panel p.297
• Lift the top panel and remove it p.297
• Slide the panel downward to undo 2 hooks on the back side p.298
• Remove the right side panel p.299
• Remove the 2 screws p.299
• Removing the front panel 2 p.299
• Slide the panel downward to undo the hook p.300
• Remove the front panel 2 p.300
• Remove the propeller fan fixing nut fan fixing nut m8 p.302
• Remove the discharge grille p.302
• Next slide the grille downward to undo the 2 hooks at the top p.302
• Remove the screw at bottom of the left side p.303
• Remove the screw at bottom left of the front p.303
• Remove the 2 fixing screws on the partition plate p.303
• The front panel 1 is provided with a hook on its front lift the front panel off position to remove it p.304
• Remove the screw at bottom of the back side p.304
• The back is a little complicated in shape be sure to detach carefully p.305
• Removing the rear panel p.305
• Remove the front panel 1 p.305
• Remove the fixing screw on the partition plate p.305
• Remove the 5 screws p.306
• Slide the panel leftward to undo the hook and remove the partition plate p.306
• Remove the wire fixing plate upper p.307
• Remove the wire fixing plate lower p.307
• Remove the 3 screws p.307
• Undo the holder of the thermistor p.308
• The holder is secured in the clearances of the heat exchanger fins p.308
• Remove the 3 fixing screws on the partition plate p.308
• Remove the fixing screw from the shut off valve mounting plate p.309
• Remove the fixing screw from the bottom frame p.309
• Lift the panel upward to undo the 2 hooks and remove it p.309
• Remove the rear panel p.310
• Removal of the electrical box p.311
• Lift up the electrical box to remove it p.316
• Removal of pcb p.317
• Removal of fan motor p.321
• Removal of coils thermistors p.322
• Pull out the thermistors p.323
• Slightly open the sound blanket p.325
• Remove the spring from the heat exchanger thermistor p.325
• Remove the sound blanket top upper p.325
• Be careful no to lose the spring p.325
• Remove the four way valve coil p.327
• Removal of sound blanket p.328
• Remove the sound blanket outer sleeve p.330
• U red v yellow w blue p.331
• Remove the terminal cover p.331
• Remove the ol p.331
• Remove the 3 screws p.331
• Removal of compressor p.331
• Pull out the 3 leads using long nose pliers p.331
• Procedure warning be sure to wait 10 minutes or more after turning off all power supplies before disassembling work p.331
• Others 22 p.332
• Part 8 others p.332
• Test run from the remote controller p.333
• Others p.333
• Wireless remote controller 1 slide the front cover and take it off 2 cut the address jumper j4 p.334
• When two units are installed in one room p.334
• When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses p.334
• Jumper settings p.334
• Jumper setting p.334
• How to set the different addresses p.334
• Control pcb of the indoor unit 1 remove the electrical box 2 cut the address jumper ja on the control pcb p.334
• Adjusting the angle of the intelligent eye sensor p.335
• Take out a pcb diode bridge diode bridge rectifier stack etc p.336
• Power transistor trm tpm igbt ipm spm etc p.336
• Ok evenly applied silicon grease ng not evenly applied ng foreign object p.336
• Not applied paper wastage p.336
• Application of silicon grease to a power transistor and a diode bridge p.336
• Wiring diagrams 35 p.338
• Piping diagrams 28 p.338
• Part 9 appendix p.338
• Wall mounted type p.339
• Piping diagrams p.339
• Indoor units p.339
• Sibe12 728 piping diagrams p.340
• Ftks71fv1b ftxg25ev1bw s ftxg35ev1bw s p.340
• Ctxg50ev1bw s ftxs20d3vmw l ftxs25d3vmw l ftxs35d3vmw l p.340
• Appendix 329 p.340
• Piping diagrams sibe12 728 p.341
• Ftxs50fv1b ftxs60fv1b ftxs71fv1b p.341
• Ftxs50d2v1w l ftxs20cavmb ftxs25cavmb ftxs35cavmb p.341
• Appendix p.341
• Duct connected type p.342
• Appendix 331 p.342
• Thermistor on heat exch p.342
• Sibe12 728 piping diagrams p.342
• Heat exchanger p.342
• Floor ceiling suspended dual type p.342
• Flks25bavmb flks35bavmb flks50bavmb flks60bavmb p.342
• Fdks25cavmb fdks35cavmb fdks50cvmb fdks60cvmb fdks25eavmb fdks35eavmb fdxs25cavmb fdxs35cavmb fdxs50cvmb fdxs60cvmb fdxs25eavmb fdxs35eavmb p.342
• Piping diagrams sibe12 728 p.343
• Fvxs25fv1b fvxs35fv1b fvxs50fv1b p.343
• Flxs25bavmb flxs35bavmb flxs50bavmb flxs60bavmb p.343
• Floor standing type p.343
• Appendix p.343
• Field piping p.344
• Fhq35 50 60bvv1b p.344
• Ceiling suspended type p.344
• C1220t 0 p.344
• Appendix 333 p.344
• To outdoor unit p.344
• Sibe12 728 piping diagrams p.344
• Indoor unit p.344
• Piping diagrams sibe12 728 p.345
• Outdoor units p.345
• Mxs90e7v3b p.345
• Mks90e7v3b p.345
• Heat pump p.345
• Cooling only p.345
• Appendix p.345
• Wiring diagrams p.346
• Wall mounted type p.346
• Indoor units p.346
• Ftks50d2v1w l ftxs50d2v1w l p.346
• Ftks20d3vmw l ftks25d3vmw l ftks35d3vmw l ftxs20d3vmw l ftxs25d3vmw l ftxs35d3vmw l p.346
• Appendix p.347
• Wiring diagrams sibe12 728 p.347
• Ftks50fv1b ftks60fv1b ftks71fv1b ftxs50fv1b ftxs60fv1b ftxs71fv1b p.347
• Ftks20cavmb ftks25cavmb ftks35cavmb ftxs20cavmb ftxs25cavmb ftxs35cavmb p.347
• Caution p.347
• Sibe12 728 wiring diagrams p.348
• Ftxg25ev1bw s ftxg35ev1bw s ctxg50ev1bw s p.348
• Fdks25cavmb fdks35cavmb fdks50cvmb fdks60cvmb fdks25eavmb fdks35eavmb fdxs25cavmb fdxs35cavmb fdxs50cvmb fdxs60cvmb fdxs25eavmb fdxs35eavmb p.348
• Duct connected type p.348
• Appendix 337 p.348
• Fvxs25fv1b fvxs35fv1b fvxs50fv1b p.349
• Floor standing type p.349
• Floor ceiling suspended dual type p.349
• Flks25bavmb flks35bavmb flks50bavmb flks60bavmb flxs25bavmb flxs35bavmb flxs50bavmb flxs60bavmb p.349
• D055953 p.349
• D033909e p.349
• Appendix p.349
• Wiring diagrams sibe12 728 p.349
• Terminal p.350
• Sibe12 728 wiring diagrams p.350
• Note 4 x24a p.350
• In case using central remote controller connect it to the unit in accordance with the attached installation manual 4 x24a is connected when the wireless remote controller kit is being used 5 remote controller model varies according to the combination system confirm engineering materials and catalogs etc before connecting 6 in case installing the drain pump m1p remove the jumper connector of x15a and execute the additional wiring for float switch and drain pump 7 symbols show as follows red red blk black wht white ylw yellow prp purple gry gray blu blue p.350
• H2p h3p p.350
• Field wiring p.350
• Fhq35 50 60bvv1b p.350
• D037842d p.350
• Connector p.350
• Ceiling suspended type p.350
• Appendix 339 p.350
• Mks90e7v3b p.351
• Heat pump p.351
• Cooling only p.351
• Appendix p.351
• Wiring diagrams sibe12 728 p.351
• Outdoor units p.351
• Mxs90e7v3b p.351
• Numerics p.352
• Drawings flow charts p.356