Daikin CDXS25EAVMT [353/456] Troubleshooting

Содержание

• E series 1
• Manual 1
• Service 1
• Cooling only indoor unit 2
• E series 2
• Outdoor unit 2
• Super multi plus 2
• Super multi plus e series 2
• Heat pump indoor unit 3
• Outdoor unit 3
• Functional parts layout 7 4
• Introduction viii 4
• List of functions 4
• Operation mode 4 2 basic control 5 4
• Part 1 list of functions 4
• Part 2 specifications 7 4
• Part 3 printed circuit board connector wiring diagram 3 4
• Part 4 refrigerant circuit 3 4
• Part 5 function 3 4
• Printed circuit board connector wiring diagram 4 4
• Refrigerant circuit 4 4
• Refrigerant flow for each operation mode 8 4
• Specifications 8 4
• Bp unit control 14 5
• Field setting for skyair indoor unit 70 5
• Indoor unit ra models 19 5
• Indoor unit skyair models 32 5
• Other control 13 5
• Outdoor unit pcb layout 51 3 field setting 52 5
• Part 6 test operation 45 5
• Protection control 07 5
• Special control 01 5
• Test operation 46 5
• Caution for diagnosis 03 6
• Instruction 85 6
• List of malfunction code 20 4 troubleshooting for ra indoor unit 22 6
• Part 7 system configuration 83 6
• Part 8 troubleshooting 01 6
• Service check function 07 6
• System configuration 84 6
• Test operation and field setting for ra indoor unit 80 6
• Troubleshooting for skyair indoor unit 33 6
• Troubleshooting for bp unit 52 7
• Troubleshooting for outdoor unit 59 7
• Check 04 9 thermistor resistance temperature characteristics 07 10 pressure sensor 09 11 method of replacing the inverter s power transistors modules 10 8
• Drawings flow charts vii 8
• Index i 8
• Part 9 appendix 13 8
• Piping diagrams 14 8
• Wiring diagrams 22 8
• Cautions regarding safety of workers 9
• Introduction 9
• Safety cautions 9
• Warning 9
• Caution 10
• Warning 10
• Cautions regarding safety of users 11
• Warning 11
• Caution 12
• Warning 12
• Caution 13
• Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 13
• Used icons 13
• List of functions 14
• Part 1 list of functions 14
• Cooling only 15
• List of functions 15
• List of functions sien18 622 15
• Note holding functions no functions 15
• List of functions 3 16
• Note holding functions no functions 16
• Sien18 622 list of functions 16
• List of functions 17
• List of functions sien18 622 17
• Note holding functions no functions 17
• List of functions 5 18
• Note holding functions no functions 18
• Sien18 622 list of functions 18
• List of functions 19
• List of functions sien18 622 19
• Note holding functions no functions 19
• List of functions 7 20
• Note holding functions no functions 20
• Sien18 622 list of functions 20
• List of functions 21
• List of functions sien18 622 21
• Note holding functions no functions 21
• Heat pump 22
• List of functions 9 22
• Note holding functions no functions 22
• Sien18 622 list of functions 22
• List of functions 23
• List of functions sien18 622 23
• Note holding functions no functions 23
• List of functions 11 24
• Note holding functions no functions 24
• Sien18 622 list of functions 24
• List of functions 25
• List of functions sien18 622 25
• Note holding functions no functions 25
• List of functions 13 26
• Note holding functions no functions 26
• Sien18 622 list of functions 26
• List of functions 27
• List of functions sien18 622 27
• Note holding functions no functions 27
• List of functions 15 28
• Note holding functions no functions 28
• Sien18 622 list of functions 28
• List of functions 29
• List of functions sien18 622 29
• Note holding functions no functions 29
• Part 2 specifications 30
• Specifications 8 30
• Cooling only 31
• Outdoor units 31
• Specifications 31
• Specifications sien18 622 31
• Bp unit 32
• Br a nch piping 32
• Hz 220 230 240v 32
• Indoor unit 32
• M a in piping 32
• O u tdoor unit 32
• Sien18 622 specifications 32
• Specifications 19 32
• Bp units 33
• Hz 220 230 240v 33
• Specifications 33
• Specifications sien18 622 33
• Hz 230v 34
• Sien18 622 specifications 34
• Specifications 21 34
• Hz 220 230 240v 60hz 220 230v 35
• Indoor units 35
• Specifications 35
• Specifications sien18 622 35
• Wall mounted type 35
• Hz 220 230 240v 60hz 220 230v 36
• Sien18 622 specifications 36
• Specifications 23 36
• Hz 220 230 240v 60hz 220 230v 37
• Hz 240v 37
• Specifications 37
• Specifications sien18 622 37
• Hz 230v 38
• Hz 240v 38
• Sien18 622 specifications 38
• Specifications 25 38
• Hz 230v 39
• Specifications 39
• Specifications sien18 622 39
• Duct connected type 40
• Hz 230v 40
• Sien18 622 specifications 40
• Specifications 27 40
• Hz 230v 41
• Specifications 41
• Specifications sien18 622 41
• Hz 230v 42
• Sien18 622 specifications 42
• Specifications 29 42
• Hz 220 230 240v 43
• Specifications 43
• Specifications sien18 622 43
• Ceiling mounted cassette type 44
• Hz 230v 44
• Sien18 622 specifications 44
• Specifications 31 44
• Hz 220 230 240v 45
• Specifications 45
• Specifications sien18 622 45
• Ceiling mounted built in type 46
• Ceiling suspended type 46
• Hz 220 230 240v 46
• Sien18 622 specifications 46
• Specifications 33 46
• Heat pump 47
• Outdoor units 47
• Specifications 47
• Specifications sien18 622 47
• Bp unit 48
• Br a nch piping 48
• Hz 220v 48
• Indoor unit 48
• M a in piping 48
• O u tdoor unit 48
• Sien18 622 specifications 48
• Specifications 35 48
• Bp units 49
• Hz 220 240v 49
• Specifications 49
• Specifications sien18 622 49
• Hz 220 230 240v 60hz 220 230v 50
• Indoor units 50
• Sien18 622 specifications 50
• Specifications 37 50
• Wall mounted ty 50
• Hz 220 230 240v 60hz 220 230v 51
• Specifications 51
• Specifications sien18 622 51
• Hz 230v 52
• Sien18 622 specifications 52
• Specifications 39 52
• Hz 220v 53
• Specifications 53
• Specifications sien18 622 53
• Hz 220v 54
• Sien18 622 specifications 54
• Specifications 41 54
• Duct connected type 55
• Hz 230v 55
• Specifications 55
• Specifications sien18 622 55
• Hz 220 230 240v 56
• Sien18 622 specifications 56
• Specifications 43 56
• Hz 230v 57
• Specifications 57
• Specifications sien18 622 57
• Hz 220v 58
• Sien18 622 specifications 58
• Specifications 45 58
• Hz 220v 59
• Specifications 59
• Specifications sien18 622 59
• Floor standing type 60
• Hz 220 230 240v 60hz 220 230v 60
• Sien18 622 specifications 60
• Specifications 47 60
• Floor ceiling suspended dual type 61
• Hz 230v 61
• Specifications 61
• Specifications sien18 622 61
• Ceiling mounted cassette type 62
• Hz 230v 62
• Sien18 622 specifications 62
• Specifications 49 62
• Hz 220 230v 63
• Specifications 63
• Specifications sien18 622 63
• Ceiling mounted built in type 64
• Hz 220 230 240v 64
• Hz 220v 64
• Sien18 622 specifications 64
• Specifications 51 64
• Ceiling suspended type 65
• Hz 220 230 240v 65
• Specifications 65
• Specifications sien18 622 65
• Part 3 printed circuit board connector wiring diagram 66
• Connectors 67
• Main pcb a1p 67
• Outdoor unit 67
• Printed circuit board connector wiring diagram 67
• Pcb detail 68
• Printed circuit board connector wiring diagram and name 55 68
• Sien18 622 printed circuit board connector wiring diagram 68
• Connectors 69
• Note other designation 1 h1p to h8p service monitor led 2 bs1 to bs5 push button switch mode set return test reset 3 ds1 dip switch 69
• Pcb detail 69
• Printed circuit board connector wiring diagram and name 69
• Printed circuit board connector wiring diagram sien18 622 69
• Service pcb a2p 69
• X205a connector for main pcb a1p 69
• Connectors 70
• Noise filter pcb a3p 70
• Pcb detail 70
• Connectors 71
• Cool heat selector pcb a4p 71
• Pcb detail 71
• Bp unit 72
• Connectors 72
• Pcb detail 72
• Connectors 73
• Wall mounted type 20 25 35 class 73
• Pcb 1 control pcb 74
• Pcb 2 signal receiver pcb pcb 3 display pcb 74
• Pcb 4 intelligent eye sensor pcb 74
• Pcb detail 74
• Printed circuit board connector wiring diagram and name 61 74
• Sien18 622 printed circuit board connector wiring diagram 74
• Connectors 75
• Wall mounted type 50 60 71 class 75
• Pcb 1 control pcb indoor unit 76
• Pcb 2 signal receiver pcb pcb 3 buzzer pcb 76
• Pcb 4 display pcb pcb 5 intelligent eye sensor pcb 76
• Pcb detail 76
• Printed circuit board connector wiring diagram and name 63 76
• Sien18 622 printed circuit board connector wiring diagram 76
• Connectors 77
• Duct connected type 77
• Pcb detail 77
• Pcb 2 display pcb 78
• Pcb detail 78
• Printed circuit board connector wiring diagram and name 65 78
• Sien18 622 printed circuit board connector wiring diagram 78
• Connectors 79
• Floor ceiling suspended dual type 79
• Pcb 1 control pcb 80
• Pcb 2 power supply pcb 80
• Pcb detail 80
• Printed circuit board connector wiring diagram and name 67 80
• Sien18 622 printed circuit board connector wiring diagram 80
• Pcb 3 display pcb 81
• Pcb 4 signal receiver pcb 81
• Printed circuit board connector wiring diagram and name 81
• Printed circuit board connector wiring diagram sien18 622 81
• Connectors 82
• Floor standing type 82
• 25 35 class 83
• Pcb 1 power supply pcb 50 class 83
• Pcb detail 83
• Pcb detail pcb 1 power supply pcb 83
• Pcb 2 control pcb pcb 3 display pcb pcb 4 signal receiver pcb 84
• Pcb detail 84
• Printed circuit board connector wiring diagram and name 71 84
• Sien18 622 printed circuit board connector wiring diagram 84
• Ceiling mounted cassette 600 600 type 85
• Connectors 85
• Ec060 8 a 86
• Pcb 1 control pcb a1p 86
• Pcb detail 86
• Printed circuit board connector wiring diagram and name 73 86
• Sien18 622 printed circuit board connector wiring diagram 86
• Pcb 2 signal receiver pcb a3p 87
• Pcb 3 display pcb a4p 87
• Pcb detail 87
• Printed circuit board connector wiring diagram and name 87
• Printed circuit board connector wiring diagram sien18 622 87
• Ceiling mounted cassette type 950 950 88
• Connectors 88
• Pcb 1 control pcb a1p 89
• Pcb detail 89
• Printed circuit board connector wiring diagram and name 89
• Printed circuit board connector wiring diagram sien18 622 89
• Pcb 2 signal receiver pcb a2p 90
• Pcb 3 display pcb a3p 90
• Pcb detail 90
• Printed circuit board connector wiring diagram and name 77 90
• Sien18 622 printed circuit board connector wiring diagram 90
• Ceiling mounted built in type 91
• Connectors 91
• Control pcb a1p 92
• Pcb detail 92
• Printed circuit board connector wiring diagram and name 79 92
• Sien18 622 printed circuit board connector wiring diagram 92
• Ceiling suspended type 93
• Connectors 93
• Ec0606 a 94
• Pcb 1 control pcb a1p 94
• Pcb detail 94
• Printed circuit board connector wiring diagram and name 81 94
• Sien18 622 printed circuit board connector wiring diagram 94
• Pcb 2 signal receiver pcb a3p 95
• Pcb 3 display pcb a4p 95
• Pcb detail 95
• Printed circuit board connector wiring diagram and name 95
• Printed circuit board connector wiring diagram sien18 622 95
• Part 4 96
• Part 4 refrigerant circuit 96
• Refrigerant circuit 96
• Outdoor units 97
• Refrigerant circuit 97
• Refrigerant circuit sien18 622 97
• Refrigerant circuit 85 98
• Refrigerant circuit diagram 98
• Sien18 622 refrigerant circuit 98
• Bp units 99
• Filter 99
• Ra indoor u nit 99
• Refrigerant circuit 99
• Refrigerant circuit sien18 622 99
• S a indoor u nit 99
• To o u tdoor u nit 99
• Birds eye view 100
• Functional parts layout 100
• Outdoor units 100
• Refrigerant circuit 87 100
• Sien18 622 functional parts layout 100
• Accumulator 101
• Capillary tube 101
• Capillary tube solenoid valve 101
• Compressor 101
• Cooling operation 101
• Double pipe heat exchanger 101
• Electronic expansion valve 101
• Ev1 480 pls ev3 pi control svp off 101
• Filter 101
• Four way valve 101
• Heat exchanger 101
• High pressure sensor 101
• High pressure switch 101
• Liquid line 101
• Low pressure sensor 101
• Pressure regulating valve 101
• Refrigerant circuit 101
• Refrigerant flow for each operation mode 101
• Refrigerant flow for each operation mode sien18 622 101
• Service port 101
• Solenoid valve 101
• Stop valve 101
• Stop valve gas line 101
• Compressor 102
• Double pipe heat exchanger 102
• Ev1 pi control ev3 pi control svp off 102
• Heating operation 102
• High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 102
• High pressure sensor 102
• Refrigerant circuit 89 102
• Sien18 622 refrigerant flow for each operation mode 102
• Solenoid valve 102
• Compressor 103
• Cooling oil return operation 103
• Double pipe heat exchanger 103
• Ev1 480 pls ev2 full close svp off 103
• High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 103
• Refrigerant circuit 103
• Refrigerant flow for each operation mode sien18 622 103
• Accumulator 104
• Capillary tube 104
• Capillary tube solenoid valve 104
• Compressor 104
• Double pipe heat exchanger 104
• Electronic expansion valve 104
• Ev1 480 pls ev2 55 pls svp off 104
• Filter 104
• Four way valve 104
• Heat exchanger 104
• Heating oil return operation defrost operation 104
• High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 104
• High pressure sensor 104
• High pressure switch 104
• Liquid line 104
• Low pressure sensor 104
• Pressure regulating valve 104
• Refrigerant circuit 91 104
• Service port 104
• Sien18 622 refrigerant flow for each operation mode 104
• Solenoid valve 104
• Stop valve 104
• Bp unit control 14 106
• Function 106
• Indoor unit ra models 19 106
• Indoor unit skyair models 32 106
• Operation mode 4 2 basic control 5 106
• Other control 13 106
• Part 5 106
• Part 5 function 106
• Protection control 07 106
• Special control 01 106
• Operation mode 107
• Basic control 108
• H heating operation is not functional at an outdoor air temperature of 24 cdb or more 108
• Normal operation 108
• Compressor pi control 109
• Δ d control 110
• Heating operation tcs tcs initial value ktc2 ktc2 correction value by δ d signal in heating 111
• 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 112
• Electronic expansion valve pi control 112
• Main electronic expansion valve ev1 control 112
• Makes pi control of the electronic expansion valve y3e to keep the superheated degree 112
• Of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger 112
• Subcooling electronic expansion valve ev3 control 112
• 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 112
• Cooling operation fan control 113
• F a n s tep s 113
• 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 113
• Special control 114
• Startup control 114
• Startup control in cooling operation 114
• Startup control in heating operation 114
• 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 114
• Conditions to start the cooling oil returning operation is started referring following conditions integrated amount of displaced oil 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 115
• 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 115
• Oil return operation 115
• Oil return operation in cooling operation 115
• Conditions to start the heating oil returning operation is started referring following conditions integrated amount of displaced oil 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 116
• 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 116
• Oil return operation in heating operation 116
• Defrosting operation 117
• 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 117
• 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 outdoor heat exchanger heat transfer co efficiency temperature of heat exchange tb low pressure equivalent saturation temperature te timer 2 hours at the minimum in addition outdoor heat exchange co efficiency is derived from tc te and the compressor load 117
• Pump down residual operation 118
• Pump down residual operation in cooling operation 118
• Pump down residual operation in heating operation 118
• Restart is stood by force to prevent frequent power on off and to equalize pressure in the refrigerant system 118
• Restart standby 118
• 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 118
• Operation of the actuator when the system is down is cleared up 119
• Stopping operation 119
• When system is in stop mode 119
• Function 107 120
• High pressure protection control 120
• In cooling operation 120
• In heating operation 120
• Protection control 120
• Sien18 622 protection control 120
• 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 120
• Function 121
• In cooling operation 121
• In heating operation 121
• Low pre ssu re limited 121
• Low pressure protection control 121
• Protection control sien18 622 121
• This low pressure protection control is used to protect compressors against the transient decrease of low pressure 121
• Discharge pipe protection control 122
• Inv compressor 122
• This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature 122
• Fin temp s t a nd b y 123
• Inv u pper limit fre qu ency m a x hz 123
• 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 123
• Inverter fin temperature control 123
• Inverter overcurrent protection control 123
• Inverter protection control 123
• Limited 123
• Not limited 123
• Tfin 7 8 c 123
• Tfin 75 c 123
• Tfin 75 c contin u e s for 3 min 123
• Tfin 83 c 123
• When occ u rring 4 time s within 60 min the m a lf u nction code l4 i s o u tp u t 123
• According to the freeze prevention status sent from the bp unit the compressor output frequency is regulated to decrease the compressor capacity in order to prevent the indoor heat exchanger from freezing 124
• Detail 124
• Freeze up protection control 124
• Function 111 124
• Outline 124
• Recovery zone lift the control increase zone 1 step up 60sec keep zone frequency is not controlled decrease zone 1 step down 60sec stop zone thermostat off only the target indoor unit 124
• Sien18 622 protection control 124
• The temperature in above figure depends on models reference value 124
• Zones are produced based on the freeze prevention status signal sent from the bp unit indoor unit and the freeze prevention control prevents freezing of the indoor unit 124
• According to the dew condensation prevention status sent from the bp unit the compressor output frequency is regulated to decrease the compressor capacity in order to prevent the indoor unit from dew condensation 125
• Detail 125
• Dew condensation prevention control 125
• Function 125
• Outline 125
• Protection control sien18 622 125
• Recovery zone lift the control increase zone 1 step up 60sec keep zone frequency is not controlled decrease zone 1 step down 60sec svg open at 52hz 125
• The temperature in above figure depends on models and actual room temperature reference value 125
• Zones are produced based on the dew condensation prevention status signal sent from the bp unit indoor unit and the dew condensation prevention control prevents dew condensation of the indoor unit 125
• Demand 1 setting 126
• Demand operation 126
• Heating operation is prohibited above 24 cdb outdoor air temperature 126
• Heating operation prohibition 126
• 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 adapter is required 126
• Other control 126
• Bp unit command conversion 127
• Bp unit control 127
• 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 127
• When the above conditions are met the powerful operation mode is activated and the powerful operation signal is sent to outdoor unit 127
• Δ d room temperature temperature setting signals from bp units are converted to capacity up down signal 127
• Δ d signals from bp units are used as the capacity up down signal in frequency commands excludes when powerful function is in operation 127
• Bp unit electronic expansion valve control 128
• During cooling operation 128
• During heating operation 128
• Electronic expansion valve flow rate restriction 128
• Electronic expansion valve initial opening setting 128
• Outline 128
• Purpose of the function 128
• Control based on ev opening command from outdoor unit 129
• Details 129
• Full closing of electronic expansion valves 129
• Outline 129
• Purpose of the function 129
• G as pipe lower limit temper a t u re doa 17 however 8 ºc or lower doa o u tdoor a ir temper a t u re 130
• In order to prevent dew condensation in connection pipe gas pipe lower limit temperature is set as follows 130
• Outline 130
• Purpose of the function 130
• Sh control in cooling operation 130
• 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 130
• 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 130
• This function ensures appropriate refrigerant distribution when many room units are operating in the cooling mode 130
• 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 130
• 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 130
• Details 131
• Heat exchanger isothermal control in heating operation 131
• Outline 131
• Purpose of the function 131
• Sc control in heating operation 131
• Auto swing wall mounted type 20 35 class 132
• Comfort airflow mode wall mounted type 20 35 class 132
• D airflow wall mounted type 50 71 class 132
• Indoor unit ra models 132
• Power airflow dual flaps 132
• Power airflow dual flaps wide angle louvers and auto swing 132
• Wide angle louvers 132
• Automatic air flow control for cooling 133
• Automatic air flow control for heating 133
• Control mode 133
• Fan speed control for indoor units 133
• For more information about hall ic refer to the troubleshooting for fan motor on page 325 133
• Ftk x s20 35d ftk x s25 35e fdk x s25 60c cdk x s25 60c cdk x s25 35ea fdks25 35ea fvxs35 50b flxs25 60b step cooling heating cooling heating lll ll sl l ml m mh h hh powerful h 90 h 90 h 50 h 50 133
• Ftk x s50 71f ftk x s50 71b ftxs50 71d 133
• Function 133
• Indoor unit ra models sien18 622 133
• 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 133
• 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 133
• Phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 133
• Phase steps 133
• 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 133
• The following drawing explains the principle of fan speed control for cooling 133
• Within this range the airflow rate is automatically controlled when the fan setting button is set to automatic 133
• In case of inverter units 134
• Programme dry function 134
• 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 134
• 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 134
• Automatic cooling heating function heat pump only when the auto mode is selected with the remote control the microcomputer automatically determines the operation mode from cooling and heating according to the room temperature and setting temperature at the time of the operation startup and automatically operates in that mode the unit automatically switches the operation mode to cooling or heating to maintain the room temperature at the main unit setting temperature 135
• Automatic operation 135
• Detailed explanation of the function 135
• Function 135
• Indoor unit ra models sien18 622 135
• Remote control setting temperature is set as automatic cooling heating setting temperature 18 to 30 c 2 main unit setting temperature equals remote control setting temperature plus correction value correction value cooling 0 deg heating 0 deg 3 operation on off point and mode switching point are as follows 1 heating cooling switching point room temperature main unit setting temperature 2 deg 2 cooling heating switching point room temperature main unit setting temperature 2 deg 3 thermostat on off point is the same as the on off point of cooling or heating operation 4 during initial operation room temperature remote control setting temperature cooling operation room temperature remote control setting temperature heating operation 135
• Cooling dry 136
• Floor standing type floor ceiling suspended type duct connected type 136
• Function 123 136
• Heating 136
• Sien18 622 indoor unit ra models 136
• The monitoring time has passed while the temperature difference is in the zone b cooling dry 10 minutes heating 10 seconds 136
• The operation turns on in any zones except a 136
• The system resumes from defrost control in any zones except a 136
• Thermostat control 136
• Thermostat control is based on the difference between the room temperature and the setpoint 136
• Thermostat off condition the temperature difference is in the zone a 136
• Thermostat on condition the temperature difference is above the zone c after being in the zone a 136
• Wall mounted type 136
• 0 c temper a t u re s hift 0 c temper a t u re s hift 137
• Cooling operation 137
• Function 137
• Heating operation 137
• In case of 20 35 class the temperature rises once 137
• Indoor unit ra models sien18 622 137
• Night set mode 137
• The night set circuit 137
• The night set circuit continues heating or cooling the room at the set temperature for the first one hour then automatically raises the temperature setting slightly in the case of cooling or lowers it slightly in the case of heating for economical operations this prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity 137
• Timer oper a tion 137
• Timer oper a tion night s et circ u it on 1 ho u r l a ter 137
• When the off timer is set the night set circuit automatically activates the night set circuit maintains the airflow setting made by users 137
• Details 138
• Econo mode 138
• Mold proof operation 138
• Outline 138
• Detection method by intelligent eye 139
• Function 139
• Indoor unit ra models sien18 622 139
• Intelligent eye wall mounted type only 139
• Processing 139
• The motions for example in cooling 139
• 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 139
• This sensor detects human motion by receiving infrared rays and displays the pulse wave output 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 139
• 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 h 1 in case of fan mode the fan speed reduces by 50 rpm 139
• Others 140
• Detail of the control 141
• Details of function a mark representing home leave is indicated on the liquid crystal display of the remote control the indoor unit is operated according to the set temperature and air volume for home leave which were pre set in the memory of the remote control the led red of indoor unit representing home leave lights up it goes out when the operation is stopped 141
• End of function the function ends when the home leave button is pressed again during home leave operation or when the powerful operation button is pressed 141
• Function 141
• Home leave operation 141
• In order to respond to the customer s need for immediate heating and cooling of the room after returning home or for house care a measure to switch the temperature and air volume from that for normal time over to outing time by one touch is provided this function responds also to the need for keeping up with weak cooling or heating this time we seek for simplicity of operation by providing the special temperature and air volume control for outing to be set by the exclusive button 141
• Indoor unit ra models sien18 622 141
• Others 141
• Outline 141
• Start of function the function starts when the home leave button is pressed in cooling mode or heating mode including stopping and powerful operation if this button is pressed while the operation is stopped the function becomes effective when the operation is started if this button is pressed in powerful operation the powerful operation is reset and this function becomes effective the home leave button is ineffective in dry mode and fan mode 141
• The set temperature and set air volume are memorized in the remote control when the remote control is reset due to replacement of battery it is necessary to set the temperature and air volume again for home leave 141
• Details of the control 142
• Ex powerful operation in cooling mode 142
• 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 142
• Inverter powerful operation 142
• Outline 142
• Refer to fan speed control on page 120 for detail 142
• 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 20 35 class 142
• An on off button is provided on the front panel of the unit use this button when the remote control 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 20 35 class 143
• Function 143
• 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 143
• Hot start function 143
• In the case of multi system operation there are times when the unit does not activate with this button 143
• Indoor unit ra models sien18 622 143
• Mode temperature setting air flow rate cooling only cool 22 c auto heat pump auto 25 c auto 143
• On off button on indoor unit 143
• Other functions 143
• Push this button once to start operation push once again to stop it this button is useful when the remote control is missing the operation mode refers to the following table 143
• Signal receiving sign 143
• This filter combines the air purifying filter and titanium apatite photocatalytic deodorizing filter in a single highly effective unit the filter traps microscopic particles decompose odours and even deactivates bacteria and viruses it lasts for three years without replacement if washed about once every six months 143
• Titanium apatite photocatalytic air purifying filter 143
• When the indoor unit receives a signal from the remote control the unit emits a signal receiving sound 143
• Air purifying filter 144
• Air purifying filter with photocatalytic deodorizing function 144
• Auto restart function 144
• Mold proof air filter 144
• Photocatalytic deodorizing filter 144
• Self diagnosis digital display 144
• Ffq b fcq b fbq b fhq b 145
• Function 145
• Function outline 145
• Indoor unit skyair models 145
• Indoor unit skyair models sien18 622 145
• Electric function parts 146
• Freeze up protection control 147
• Function 147
• Function details 147
• Indoor unit skyair models sien18 622 147
• The thermostat turns off under the following temperature conditions to prevent freezing of the indoor unit heat exchanger the motorized valve is controlled to maintain the indoor unit heat exchanger temperature te above 0 c the outdoor unit fan speed is reduced to prevent freeze up protection control from activating during cooling operation under low outside air temperature for details see the section on cooling operation under low outside air temperature 147
• Thermostat control 147
• Condensation avoidance control fhq only 148
• Drain pump control 148
• Outdoor unit identification function 148
• 2 operation s when an occurrence of water level abnormality 1 2 a behavior between occurrence and recovery of water level abnormality 149
• Compre ss or 149
• Dr a in p a n 149
• Dr a in p u mp 149
• Error proce ss ing 149
• Intermittent oper a tion 1 5min 5min 149
• Note 1 on the whole of cooling a nd dry oper a tion recovery oper a tion for dr a in w a ter level ab norm a lity doe s not a ctiv a te when the w a ter level c a n b e ret u rned norm a l within a 10 s econd s 149
• Occurrence of drain water level abnormality 149
• Recovery of drain water level abnormality 149
• Remote control 149
• 2 a 2 when a water level abnormality occur s durin g drain pump off 151
• Compre ss or 151
• Dr a in p a n 151
• Dr a in p u mp 151
• Error proce ss ing 151
• Intermittent oper a tion 1 151
• Min 20min b as ic oper a tion 151
• Min 5min 151
• Min 5min intermittent oper a tion 1 151
• Note 2 2 a 2 when a w a ter level ab norm a lity occ u r s d u ring dr a in p u mp off recovery oper a tion for dr a in w a ter level ab norm a lity doe s not a ctiv a te when the w a ter level c a n b e ret u rned norm a l within a 8 0 s econd s 151
• Occurrence of drain water level abnormality 151
• Recovery of drain water level abnormality 151
• Remote controler 151
• The ab norm a lity i s determined when 8 0 s econd s el a p s e from compre ss or s top other th a n ab ove b eh a vior i s sa me as 2 2 a 151
• 1 when the remote control thermostat malfunctions 2 when the one remote control group control is applied excluding simultaneous on off operation 3 when conditions relating set temperature with remote control and suction air temperature are out of the operating zone of remote control thermostat shown in below diagram excluding when automatic operation mode is selected whenever operation is in the automatic mode remote control thermostat can be used 152
• Function 139 152
• Sien18 622 indoor unit skyair models 152
• Using conditions for remote control thermostat 152
• According to suction air temp 153
• Auto restart function 153
• Caution when performing maintenance and the power supply is to be shut off be sure to turn the remote control s on off switch off first 153
• If there is a power cut when the unit is operating it will automatically resume the same operating mode when the power is restored 153
• Operation condition 153
• Program dry operation function 153
• 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 153
• 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 control 153
• Thermostat on point 153
• Fan and flap operations 154
• H 1 l or ll operation for ffq fcq only l for 4 way outlet and ll for 2 way or 3 way outlet 154
• Mode conflict 155
• 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 155
• Operation of the indoor unit for the own room during non operation fan off louver becomes horizontal position on led on the remote control blinks indication of under central control on the remote control displayed 155
• Operational the unit for another room is switched into non operational condition non operational 155
• 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 155
• Non operating room dew prevention fan control 156
• Part 6 158
• Part 6 test operation 158
• Test operation 158
• Check work prior to turn power supply on 159
• Procedure and outline 159
• Test operation 159
• Turn power on 159
• Address redundancy checking flowchart 160
• Judging and reprogramming in case of redundant bp addresses 160
• Modify the dip switch ds2 settings on the bp unit s pcb in the following way 160
• Reprogramming the pcb addresses of bp unit 160
• Sien18 622 test operation 160
• Test operation 147 160
• 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 160
• 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 161
• 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 161
• Example of dip switch ds2 settings on the bp unit s pcb 161
• Note if an error display appears on the indoor unit bp unit or outdoor unit follow its code and description 161
• Tap the reset bs5 button on the outdoor unit pcb operation becomes possible for about 2 minutes if not the unit cannot be run for up to 10 minutes status 161
• The unit cannot be run for up to 12 minutes to automatically set address indoor outdoor address etc status 161
• When the no of indoor unit has been changed or indoor bp or outdoor unit pcb has been changed or the system is transferred 161
• When turning on power first time 161
• When turning on power the second time and subsequent 161
• Check operation 162
• Confirmation on normal operation 163
• Caution cover electric parts with an insulating sheet during inspection to prevent electric shock 164
• Outdoor unit pcb 164
• Outdoor unit pcb layout 164
• Sien18 622 outdoor unit pcb layout 164
• Test operation 151 164
• A4p a2p 165
• Field setting 165
• Field setting from outdoor unit 165
• Setting by dip switches 165
• Caution 166
• 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 166
• Sien18 622 field setting 166
• Test operation 153 166
• 7 8 7 7 7 7 167
• Factory setting 167
• Field setting sien18 622 167
• H1p h2p h3p h4p h5p h6p h7p 167
• Led indication 167
• Mode changing procedure 167
• Setting by pushbutton switches the following settings are made by pushbutton switches on pcb 167
• Test operation 167
• There are the following three setting modes setting mode 1 h1p off initial status when normal also indicates during abnormal setting mode 2 h1p on used to modify the operating status and to set program addresses etc usually used in servicing the system monitor mode h1p blinks used to check the program made in setting mode 2 167
• 7 8 7 7 7 7 168
• A setting mode 1 168
• Procedure for changing cool heat selection setting 168
• Sien18 622 field setting 168
• Test operation 155 168
• 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 168
• Additional refrigerant charge operation setting carries out additional refrigerant charge operation 169
• Airnet address set address for airnet 169
• B s ettin g mode 2 169
• Capacity precedence setting if the capacity control is required the low noise control is automatically released by this setting during carrying out low noise operation and nighttime low noise operation 169
• Cool heat unified address sets address for cool heat unified operation 169
• Defrost changeover setting changes the temperature condition for defrost and sets to quick defrost or slow defrost 169
• Demand setting 1 changes target value of power consumption when demand control 1 is input 169
• External low noise setting demand setting reception of external low noise or demand signal 169
• Field setting sien18 622 169
• Indoor unit forced fan h allows forced operation of indoor unit fan while unit is stopped h tap 169
• Indoor unit forced operation allows forced operation of indoor unit 169
• Low noise demand address address for low noise demand operation 169
• Night time low noise operation end setting sets ending time of nighttime low noise operation night time low noise setting is also required 169
• Night time low noise operation start setting sets starting time of nighttime low noise operation night time low noise setting is also required 169
• Night time low noise setting 169
• No setting item description 169
• Normal demand setting normally enables demand control 1 without external input effective to prevent a problem that circuit breaker of small capacity is shut down due to large load 169
• Power transistor check mode check after disconnection of compressor wires 169
• Refrigerant recovery vacuuming mode setting sets to refrigerant recovery or vacuuming mode 169
• Sets automatic nighttime low noise operation in a simple way the operating time is based on starting set and ending set 169
• Setting of external low noise level sets low noise level when the low noise signal is input from outside 169
• Setting of hot water make this setting to conduct heating operation with hot water heater 169
• Te setting target evaporation temperature for cooling 9 tc setting target condensation temperature for heating 169
• Test operation 169
• Test operation settings used to conduct test operation without making changes to the pcb and replacing the refrigerant after the completion of maintenance 169
• Used for trouble diagnosis of dc compressor since the waveform of inverter is output without wiring to the compressor it is convenient to probe whether the trouble comes from the compressor or pc board 169
• 7 7 7 7 7 172
• 7 7 7 7 8 172
• 7 7 7 7 9 172
• 7 7 7 8 7 172
• 7 7 7 8 8 172
• 7 7 7 9 7 172
• 7 7 8 7 7 172
• 7 7 8 7 8 172
• 7 7 8 8 8 172
• 7 7 9 7 7 172
• 7 8 7 7 7 172
• 7 8 7 8 8 172
• 7 8 8 7 7 172
• 7 8 8 7 8 172
• 7 8 8 8 7 172
• 7 8 8 8 8 172
• 8 7 7 7 7 172
• 8 7 8 7 7 172
• 8 7 8 7 8 172
• 8 7 8 8 7 172
• 8 8 7 7 8 172
• C monitor mode 172
• Defrost select setting short 172
• Emg operation backup operation setting 172
• Setting item 0 display contents of various setting 172
• Sien18 622 field setting 172
• Tc setting h 172
• Te setting h 172
• Test operation 159 172
• The numbers in the no column represent the number of times to press the set bs2 button 172
• Cool heat mode switching 174
• Detail of setting mode 174
• For the details refer to the installation manual supplied together with the indoor unit 174
• In the case of infrared remote controls 174
• In the case of wired remote controls 174
• It does not matter whether or not there is outdoor outdoor unit wiring set outdoor unit pc board ds1 1 to in factory set set cool heat switching to ind individual for setting mode 1 factory set 174
• Set cool heat separately for each outdoor unit system by indoor unit remote control 174
• There are the following 4 cool heat switching modes set cool heat separately for each outdoor unit system by indoor unit remote control set cool heat separately for each outdoor unit system by cool heat switching remote control set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote control set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote control 174
• Field setting sien18 622 175
• It does not matter whether or not there is outdoor outdoor unit wiring set outdoor unit pc board ds1 1 to out factory set set cool heat switching to ind individual for setting mode 1 factory set 175
• Set cool heat separately for each outdoor unit system by cool heat switching remote control 175
• Test operation 175
• By connecting the external contact input to the low noise input of the outdoor unit external control adapter optional you can lower operating noise by 2 3 db 176
• Image of operation 176
• Setting of low noise operation 176
• Setting of low noise operation and demand operation 176
• Sien18 622 field setting 176
• Test operation 163 176
• When the low noise operation is carried out automatically at night the external control adapter for outdoor unit is not required 1 while in setting mode 2 select the setting condition i e mode 1 mode 2 or mode 3 for set item no 22 setting of nighttime low noise level 2 if necessary while in setting mode 2 select the setting condition i e 20 00 22 00 or 24 00 for set item no 26 setting of start time of nighttime low noise operation use the start time as a guide since it is estimated according to outdoor temperatures 3 if necessary while in setting mode 2 select the setting condition i e 06 00 07 00 or 08 00 for set item no 27 setting of end time of nighttime low noise operation use the end time as a guide since it is estimated according to outdoor temperatures 4 if necessary while in setting mode 2 set the setting condition for set item no 29 setting of capacity precedence to on if the condition is set to on when the air conditioning load reaches a high level the system will be put into 176
• 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 177
• Field setting sien18 622 177
• Image of operation 177
• Set item condition content 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 177
• Setting of demand operation 177
• Test operation 177
• 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 177
• Detailed setting procedure of low noise operation and demand control 178
• Refri g erant additional char g in g operation procedure 180
• S ervice port 180
• Setting of refrigerant additional charging operation 180
• Sien18 622 field setting 180
• Test operation 167 180
• Operating procedure 181
• Operation procedure 181
• Setting of refrigerant recovery mode 181
• Setting of vacuuming mode 181
• Check operation 182
• Check operation function 182
• 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 182
• Explanation 183
• Field set is carried out from the remote control 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 183
• Field setting for skyair indoor unit 183
• Field setting 184
• Note field setting must be made from the remote control in accordance with the installation conditions setting can be made by changing the mode number first code no and second code no refer to the following procedures for field setting 184
• Procedure 184
• Wired remote control 184
• Infrared remote control 185
• Initial setting contents 185
• Mode no field s et mode 185
• Procedure 185
• S econd code no fir s t code no 185
• 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 186
• 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 control due to initialization operation 186
• Example 186
• Local setting mode number 186
• 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 setting of air flow direction adjustment range 13 23 4 automatic restart after power outage 12 22 5 remote control thermostat 10 20 2 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 186
• 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 02 186
• Air flow direction setting ffq fcq 187
• Detailed explanation of setting modes 187
• Fan speed off when thermostat is off 187
• Filter sign setting 187
• If switching the filter sign on time set as given in the table below set time 187
• Make the following air flow direction setting according to the respective purpose 187
• Range of air flow direction setting ffq fcq 187
• 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 01 187
• Setting table 187
• 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 187
• After completing setting seal off the opening of the address switch and the main sub switch with the attached sealing pad 188
• 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 188
• Explanation 188
• Fan speed changeover when thermostat is off 188
• If several infrared remote control units are used together in the same room including the case where both group control and individual remote control control are used together be sure to set the addresses for the receiver and infrared remote control for group control see the attached installation manual for the indoor unit if using together with a wired remote control you have to change the main sub setting or the receiver 188
• Receiver setting 188
• Set the wireless address switch ss2 on the transmitter board according to the table below 188
• Setting table 188
• When using both a wired and a infrared remote control 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 188
• Wireless setting address and main sub setting 188
• 1 hold down the button and the button for at least 4 seconds to get the field set mode indicated in the display area in the figure at below 2 press the button and select a multiple setting a b each time the button is pressed the display switches between a and b 3 press the button and button to set the address 189
• Address can be set from 1 to 6 but set it to 1 3 and to same address as the receiver the receiver does not work with address 4 6 4 press the button to enter the setting 5 hold down the button for at least 1 second to quit the field set mode and return to the normal display 189
• Address setting it is factory set to 1 189
• Multiple settings a b 189
• When the indoor is being operating by outside control central remote control etc it sometimes does not respond to on off and temperature setting commands from this remote control check what setting the customer wants and make the multiple setting as shown below 189
• After setting 190
• Precautions set the unit no of the receiver and the infrared remote control to be equal if the settings differ the signal from the remote control cannot be transmitted 190
• Sien18 622 field setting for skyair indoor unit 190
• Stick the unit no label at decoration panel air discharge outlet as well as on the back of the infrared remote control 190
• Test operation 177 190
• Centralized group no setting 191
• Centralized group no setting by remote control 191
• Field setting for skyair indoor unit sien18 622 191
• Group no setting example 191
• If carrying out centralized control with a central remote control and unified on off controller you have to set the group no for each group by remote control to set the group no first turn on the power supply of the central remote control unified on off controller and indoor unit 191
• If the address has to be set individually for each unit for power consumption counting etc set the mode no to 30 191
• If the inspection test button is pushed for 4 seconds or more when in the normal mode operation enters the field set mode 2 using the temperature control buttons set the mode no to 00 3 push the inspection test button to inspect the group no display 4 using the programming time button set the group no for each group group no rises in the order of 1 00 1 01 15 2 00 15 etc the unified on off controller however displays only the range of group numbers selected by the switch for setting each address 5 push the timer on off button and enter the selected group no 6 push the inspection test button and return to the normal mode 191
• Note 1 f1 f2 indicates interface adapter for skyair series 2 if not using remote controls temporarily connect a remote control to set the group no set the group no for centralized control and then disconnect the controller 191
• Test operation 191
• 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 192
• Forced fan on turns the fan on for each unit individually 192
• Individual setting sets fan speed and air flow direction for each unit individually when using group control settings are made using the air flow direction adjust and fan speed adjust buttons 192
• Maintenance mode setting 192
• Malfunction hysteresis you can change the history with the programming time up down button 192
• Mode no function content and operation method example of remote control display 192
• Operation is not reset by malfunction code reset for inspection cannot be reset because the count is updated each time a malfunction occurs 192
• Procedure 192
• Sensor data display select the display sensor with the programming time up down button display sensor 00 remote control sensor 01 suction r1t 02 heat exchange r2t 03 heat exchange r3t 192
• Sien18 622 field setting for skyair indoor unit 192
• Test operation 179 192
• Unit no change changes unit no set the unit no after changing with the programming time up down button 192
• For cooling only 193
• For heat pump 193
• Test operation and field setting for ra indoor unit 193
• Test operation from the remote control 193
• How to set the different addresses control pcb of the indoor unit 1 remove the electrical box 2 cut the address jumper ja on the control pcb 194
• Infrared remote control 1 slide the front cover and take it off 2 cut the address jumper j4 194
• Jumper setting 194
• Jumper settings 194
• When two indoor units are installed in one room the two infrared remote controls can be set for different addresses 194
• When two units are installed in one room 194
• Instruction 85 195
• Part 7 system configuration 195
• Part 7system configuration 195
• System configuration 84 195
• Operation instructions 196
• System configuration 196
• Instruction 197
• Rmxs series 197
• Illustrations are for wall mounted type ftk x s20 25 35d as representative 198
• Illustrations are for wall mounted type ftk x s50 60 71f as representative 198
• Instruction sien18 622 198
• Manual contents and reference page 198
• System configuration 198
• Wall mounted duct floor ceiling floor standing type 198
• Caution 199
• Safety precautions 199
• Warning 199
• Consider nuisance to your neighbours from noises 200
• Electrical work 200
• Installation site 200
• System relocation 200
• Ftk x s 20 25 35 d ftk x s 25 35 e 201
• Indoor unit 201
• Names of parts 201
• Outdoor unit 202
• Arc4 33 a46 a4 203
• Remote control 203
• Ftk x s 50 60 71 f 204
• Indoor unit 204
• 60 cla ss 71 8 0 90 cla ss 205
• Outdoor unit 205
• Arc4 33 a70 a71 206
• Clock button page 232 18 reset button 206
• Display 206
• Home leave button home leave operation page 224 4 powerful button powerful operation page 220 5 temperature adjustment buttons 206
• Mode selector button 206
• On off button 206
• On timer button page 231 14 off timer button page 230 15 timer setting button 206
• Remote control 206
• Sensor button intelligent eye operation page 226 11 swing button page 218 206
• Silent button outdoor unit silent operation page 232 9 fan setting button 206
• Swing button page 219 206
• Timer cancel button 206
• Ftk x s 50 60 71 b ftxs 50 60 71 d 207
• Indoor unit 207
• Main unit control panel 207
• Air inlet 4 front grille 5 grille tab 6 intelligent eye sensor 208
• Air purifying filter with photocatalytic deodorizing function 208
• Display 8 air outlet 9 flap horizontal blade 10 louvers vertical blades 208
• Indoor unit on off switch 208
• Operation lamp green 12 timer lamp yellow 13 home leave lamp red 208
• Outdoor unit 208
• Remote control 209
• Cdk x s 25 35 50 60 c fdk x s 25 35 50 60 c cdxs 25 35 50 60 d cdk x s 25 35 e fdks 25 35 e 210
• Indoor unit 210
• Indoor unit on off switch 211
• Outdoor unit 211
• Remote control 212
• Caution 213
• Fvxs 35 50 b 213
• Indoor unit 213
• Opening the front grille 213
• Air inlet 7 air filter 8 flap horizontal blade 9 operation lamp green 10 timer lamp yellow 11 home leave lamp red 12 indoor unit on off switch 214
• Air outlet 3 display 4 front grille 5 louvers vertical blades 214
• Outdoor unit 214
• Arc4 33 a 215
• Remote control 215
• Caution 216
• Flxs 25 35 50 60 b 216
• Indoor unit 216
• Opening the front grille 216
• Outdoor unit 217
• Arc4 33 a5 218
• Remote control 218
• Preparation before operation 219
• Attention 220
• Reciever 220
• Remote control holder 220
• To fix the remote control holder on the wall 220
• To operate the remote control 220
• To remove p u ll it u pw a rd s 220
• To set the clock 221
• Turn the breaker on 221
• Auto dry cool heat fan operation 222
• To change the temperature setting 222
• To start operation 222
• To stop operation 222
• To change the air flow rate setting 223
• Adjusting the air flow direction 224
• Ftk x s 20 25 35 d ftk x s 25 35 e 224
• To adjust the horizontal blades flaps 224
• Notes on flaps and louvers angles 225
• To adjust the vertical blades louvers 225
• Ftk x s 50 60 71 f b ftxs 50 60 71 d 226
• To adjust the horizontal blade flap 226
• To adjust the vertical blades louvers 226
• Always use a remote control to adjust the flaps angle if you attempt to move it forcibly with hand when it is swinging the mechanism may be broken be careful when adjusting the louvers inside the air outlet fan is rotating at a high speed 227
• Always use a remote control to adjust the louvers angles inside the air outlet a fan is rotating at a high speed 227
• Is selected the flaps swinging range depends on the operation mode see the figure 227
• Notes on flap angle 227
• Notes on louvers angles 227
• To 3 d airflow 227
• To cancel 3 d airflow 227
• Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot air which tends to collect near the ceiling throughout the room preventing areas of cold and hot developing 227
• Fvxs 35 50 b 228
• Notes on flap and louvers angle 228
• On off 228
• To adjust the horizontal blade flap 228
• To adjust the vertical blades louvers 228
• Air flow selection 229
• Caution 229
• Cool mode 229
• Heat mode 229
• Operating mode situation blowing pattern 229
• When setting the air flow selection switch to 229
• When setting the air outlet selection switch to 229
• Flxs 25 35 50 60 b 230
• On off 230
• To adjust the horizontal blade flap 230
• Notes on flap and louvers angle 231
• To adjust the vertical blades louvers 231
• Powerful operation 232
• To cancel powerful operation 232
• To start powerful operation 232
• Outdoor unit silent operation 233
• To cancel outdoor unit silent operation 233
• To start outdoor unit silent operation 233
• Econo operation 234
• To cancel econo operation 234
• To start econo operation 234
• Mold proo 235
• Operation 235
• To cancel mold proof operation 235
• To set mold proof operation 235
• Before using home leave operation 236
• Home leav 236
• Operation 236
• To cancel home leave operation 236
• To start home leave operation 236
• Useful in these cases 237
• What s the home leave operation 237
• Ftk x s 20 25 35 d ftk x s 25 35e 238
• Instruction sien18 622 238
• Intelligent eye operation 238
• Mode fan 238
• System configuration 238
• To cancel the intelligent eye operation 238
• To start intelligent eye operation 238
• Caution 239
• Intelligent eye is useful for energy saving 239
• Notes on intelligent eye 239
• Disappears from the lcd 240
• Ftk x s 50 60 71 f b ftxs 50 60 71 d 240
• Intelligent eye is the infrared sensor which detects the human movement 240
• Is displayed on the lcd 240
• To cancel the intelligent eye operation 240
• To start intelligent eye operation 240
• Caution 241
• Intelligent eye is useful for energy saving 241
• Notes on intelligent eye 241
• Operation 242
• To cancel the off timer operation 242
• To use off timer operation 242
• Attention 243
• To cancel on timer operation 243
• To combine on timer and off timer 243
• To use on timer operation 243
• Cooling heating mode lock available only for heat pump models 244
• Night quiet mode available only for cooling operation 244
• Note for multi system 244
• Outdoor unit silent operation 244
• Selecting the operation mode 244
• Priority room setting 245
• Before cleaning be sure to stop the operation and turn the breaker off 246
• Care and cleaning 246
• Caution 246
• Front panel 246
• Ftk x s 20 25 35 d ftk x s 25 35 e 246
• Indoor unit outdoor unit and remote control 246
• Air filter 247
• Filters 247
• If it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent 3 do not remove filter from frame when washing with water 4 after washing shake off remaining water and dry in the shade 5 since the material is made out of paper do not wring out the filter when removing water from it 247
• Maintenance 247
• Replacement 247
• Titanium apatite photocatalytic air purifying filter 247
• Before a long idle period 248
• Before cleaning be sure to stop the operation and turn the breaker off 249
• Caution 249
• Front panel 249
• Ftk x s 50 60 71 f 249
• Indoor unit outdoor unit and remote control 249
• Air filter 250
• Filters 250
• If it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent 3 after washing shake off remaining water and dry in the shade 4 since the material is made out of paper do not wring out the filter when removing water from it 250
• Maintenance 250
• Replacement 250
• Titanium apatite photocatalytic air purifying filter 250
• Before a long idle period 251
• Before cleaning be sure to stop the operation and turn the breaker off 252
• Caution 252
• Front grille 252
• Ftk x s 50 60 71 b ftxs 50 60 71 d 252
• Indoor unit outdoor unit and remote control 252
• Air filter 253
• Air purifying filter with photocalytic deodorizing function gray 253
• Filters 253
• If it is very dirty soak it for 10 to 15 minutes in water mixed with a neutral cleaning agent 3 after washing shake off remaining water and dry in the shade 4 since the material is made out of paper do not wring out the filter when removing water from it 253
• Maintenance 253
• Replacement 253
• Before a long idle period 254
• Caution 255
• Cdk x s 25 35 50 60 c fdk x s 25 35 c cdxs 25 35 50 60 d 255
• Cleaning the air filter 255
• Only a qualified service person is allowed to perform maintenance before cleaning be sure to stop the operation and turn the breaker off 255
• Rear suction hook the filter behind the flap situated at the top of the unit and push the other side gently over the 3 bends bottom suction hook the filter behind the flap situated at the middle of the unit and push the other side gently over the 3 bends 255
• Rear suction pull the bottom side of the air filter backwards over the 3 bends bottom suction pull the filter over the 3 bends situated at the backside of the unit 255
• Remove dust from the air filter using a vacuum cleaner and gently rinse them in cool water do not use detergent or hot water to avoid filter shrinking or deformation after cleaning dry them in the shade 255
• Removing the air filter 255
• Replacing the air filter 255
• Before a long idle period 256
• Caution 256
• Cleaning the drain pan 256
• Caution 257
• Cdk x s 25 35 e fdks 25 35 e fdk x s 50 60 c 257
• Cleaning the air filter 257
• Only a qualified service person is allowed to perform maintenance before cleaning be sure to stop the operation and turn the breaker off 257
• Rear suction hook the filter behind the flap situated at the top of the unit and push the other side gently over the bends bottom suction hook the filter behind the flap situated at the middle of the unit and push the other side gently over the 3 bends 257
• Rear suction pull the bottom side of the air filter backwards over the bends bottom suction pull the filter over the bends situated at the backside of the unit 257
• Remove dust from the air filter using a vacuum cleaner and gently rinse them in cool water do not use detergent or hot water to avoid filter shrinking or deformation after cleaning dry them in the shade 257
• Removing the air filter 257
• Replacing the air filter 257
• Before a long idle period 258
• Caution 258
• Cleaning the drain pan 258
• Before cleaning ve sure to stop the operation and turn the breaker off 259
• Caution 259
• Front grille 259
• Fvxs 35 50 b 259
• Indoor unit outdoor unit and remote control 259
• Wipe them with dry soft cloth 259
• Air filter 260
• Air purifying filter green 260
• Filters 260
• Photocatalytic deodorizing filter gray maintenance 260
• Replacement 260
• Before a long idle period 261
• Before cleaning be sure to stop the operation and turn the breaker off 262
• Caution 262
• Flxs 25 35 50 60 b 262
• Front grille 262
• Indoor unit outdoor unit and remote control 262
• Air filter 263
• Air purifying filter green 263
• Filters 263
• Photocatalytic deodorizing filter gray maintenance 263
• Replacement 263
• Before a long idle period 264
• Sien18 622 instruction 265
• System configuration 253 265
• The following cases are not air conditioner troubles but have some reasons you may just continue using it 265
• These cases are not troubles 265
• Troubleshooting 265
• Check again 266
• Instruction sien18 622 266
• Please check again before calling a repair person 266
• System configuration 266
• Call the service shop immediately 267
• Warning 267
• We recommend periodical maintenance 267
• Ceiling mounted cassette type 268
• Ffq 25 35 50 60 b 268
• Indoor u nit 269
• Indoor u nit indoor u nit 269
• O u tdoor u nit 269
• Precautions for group control system or two remote control control system 269
• Unit with remote control 269
• What to do before operation 269
• Caution 270
• Safety considerations 270
• Warning 270
• Cooling 271
• Heating 271
• Installation site 271
• Operation range 271
• Pay attention to running noises too 271
• Regarding drainage of drain piping 271
• Regarding places for installation 271
• Regarding wiring 271
• Cooling heating automatic fan and program dry operation 272
• Name and function of each switch and display on the remote control 272
• Operation mode selector 272
• Operation procedure 272
• Air flow direction adjust 273
• Fan speed control 273
• On off 273
• Press air flow direction adjust button to adjust the air flow angle 273
• Press the air flow direction adjust button to select the air direction as following 273
• Temperature setting 273
• Up a nd down a dj us tment 273
• Maintenance for service personnel 274
• Movement of the air flow flap 274
• Optimum operation 274
• Program timer operation 274
• Programming time 274
• Timer mode start stop 274
• Timer on off 274
• How to clean air outlet and outside panels 275
• How to clean the air filter 275
• How to clean the suction grille 275
• And the unit operates in a mode different to what is shown on the remote control display 276
• I the system does not operate 276
• Ii the display shows 276
• Not malfunction of the air conditioner 276
• Start up after a long stop 276
• What to do when stopping the system for a long period 276
• Dust from the units 277
• Iii the fan speed is different from the setting 277
• Iv air blow direction is not as specified 277
• The liquid crystal of the remote control show 277
• The units give off odors 277
• Trouble shooting 277
• V white mist comes out of a unit 277
• Vi noise of air conditioners 277
• Warning 277
• Fcq 35 50 60 71 b 279
• What to do before operation 280
• Caution 281
• Safety considerations 281
• Warning 281
• 5 to 46 db 21 to 3 2 db 14 to 2 3 wb 282
• Cooling 282
• Cooling only type 282
• Heat pump type 282
• Heating 282
• Installation site 282
• Operation 282
• Operation range 282
• Outdoor indoor 282
• Pay attention to running noises too 282
• Regarding drainage of drain piping 282
• Regarding places for installation 282
• Regarding wiring 282
• Temperature c 282
• To 2 8 db 282
• To 3 2 db 14 to 2 3 wb 282
• Cooling heating automatic fan and program dry operation 283
• Name and function of each switch and display on the remote control 283
• Operation mode selector 283
• Operation procedure 283
• Air flow direction adjust 284
• Fan speed control 284
• On off 284
• Press air flow direction adjust button to adjust the air flow angle 284
• Temperature setting 284
• Up a nd down a dj us tment 284
• Movement of the air flow flap 285
• Optimum operation 285
• Press the air flow direction adjust button to select the air direction as following 285
• Program timer operation 285
• Programming time 285
• Timer mode start stop 285
• Timer on off 285
• How to clean the air filter 286
• Maintenance for service personnel 286
• How to clean air outlet and outside panels 287
• How to clean the suction grille 287
• Start up after a long stop 287
• I the system does not operate 288
• Ii white mist comes out of a unit 288
• Iii noise of air conditioners 288
• Iv dust from the units 288
• Not malfunction of the air conditioner 288
• V the units give off odors 288
• Vi the liquid crystal of the remote control shows 88 288
• What to do when stopping the system for a long period 288
• Trouble shooting 289
• Warning 289
• Ceiling mounted built in type 290
• Caution 291
• Safety considerations 291
• Warning 291
• What to do before operation 291
• Caution 292
• Warning 292
• 5 to 46 db 21 to 3 2 db 14 to 2 3 wb 293
• Cooling 293
• Cooling only type 293
• Heat pump type 293
• Heating 293
• Installation site 293
• Operation 293
• Operation range 293
• Outdoor indoor 293
• Pay attention to running noises too 293
• Regarding drainage of drain piping 293
• Regarding places for installation 293
• Regarding wiring 293
• Temperature c 293
• To 2 8 db 293
• To 3 2 db 14 to 2 3 wb 293
• Name and function of each switch and display on the remote control 294
• Operation procedure 294
• U s e thi s bu tton for s etting tempera ture 294
• Adjustment 295
• Cooling heating automatic fan and program dry operation 295
• Fan speed control 295
• On off 295
• Operation mode selector 295
• Program timer operation 295
• Temperature setting 295
• How to clean the air filter 296
• Maintenance for service personnel 296
• Optimum operation 296
• Programming time 296
• Timer mode start stop 296
• Timer on off 296
• How to clean air outlet suction grille and outside panels 297
• I the system does not operate 298
• Ii white mist comes out of a unit 298
• Iii noise of air conditioners 298
• Iv dust from the units 298
• Not malfunction of the air conditioner 298
• V the units give off odors 298
• Vi the liquid crystal of the remote control show 88 298
• What to do when stopping the system for a long period 298
• Trouble shooting 299
• Warning 299
• Ceiling suspended type 300
• Contact your daikin dealer in case of changing the combination or setting of group control and two remote controls control sytem 301
• Group control system 301
• If the unit you purchased is controlled by a infrared remote control also refer to the infrared remote control s operation manual if your installation has a customized control system ask your daikin dealer for the operation that corresponds to your system heat pump type this system provides cooling heating automatic program dry and fan operation modes cooling only type this system provides cooling program dry and fan operation modes 301
• Names and functions of parts 301
• One remote control controls up to 16 indoor units all indoor units are equally set 301
• Precautions for group control system or two remote control control system 301
• Safety considerations 301
• This operation manual is for the following systems with standard control before initiating operation contact your daikin dealer for the operation that corresponds to your system 301
• This system provides two other control systems beside individual control one remote control controls one indoor unit system confirm the following if your unit is of the following control sytem type 301
• Two remote controls control one indoor unit in case of group control sytem one group of indoor units the unit is individually operated 301
• Two remote controls control system 301
• We recommend that you read this instruction manual carefully before use to gain full advantage of the function of the air conditioner and to avoid malfunction due to erroneous handling this air conditioner comes under the term appliances not accessible to the general public 301
• What to do before operation 301
• Caution 302
• Warning 302
• 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 fluctuations such as a factory or plant e vehicles and vessels f where there is much spray of oil and vapor such as a cookery etc g where there are machines generating electromagnetic waves h filled with acid and or alkaline steam or vapor 303
• Cooling 303
• Db dry bulb temperature c wb wet bulb temperature c 303
• Do not connect the grounding conductor to a gas pipe water pipe lightning arrester and the grounding conductor for a telephone imperfect grounding work may result in an electric shock 303
• For details consult your dealer 303
• Heating 303
• If the temperature or the humidity is beyond the following conditions safety devices may work and the air conditioner may not operate or sometimes water may drop from the indoor unit 303
• Incomplete piping may result in a water leakage 303
• Installation site 303
• Operation range 303
• Regarding places for installation 303
• Regarding wiring 303
• The setting temperature range of the remote control is 16 c to 32 c 303
• To do wiring ask your dealer never do it by yourself 303
• Name and function of each switch and display on the remote control 304
• Pay attention to running noises too 304
• Regarding drainage of drain piping 304
• Cooling heating automatic fan and program dry operation 305
• On off 305
• Operation mode selector 305
• Operation procedure 305
• Adjustment 306
• Air flow direction adjust 306
• Fan speed control 306
• Movement of the air flow flap 306
• Press the air flow direction adjust button to select the air direction as following 306
• Temperature setting 306
• Optimum operation 307
• Program timer operation 307
• Programming time 307
• Timer mode start stop 307
• Timer on off 307
• Fi g 2 308
• Fi g 3 308
• Fi g 4 308
• Fi g 5 308
• How to clean the air filter 308
• Maintenance for service personnel 308
• How to clean air outlet and outside panels 309
• How to clean the suction grille 309
• I the system does not operate 309
• Not malfunction of the air conditioner 309
• Start up after a long stop 309
• What to do when stopping the system for a long period 309
• Dust absorbed by the unit blows out 310
• Expansion and contraction of plastic parts caused by temperature change makes this noise 310
• If the inside of an indoor unit is extremely contaminated the temperature distribution inside a room becomes uneven it is necessary to clean the inside of the indoor unit ask your daikin dealer for details on cleaning the unit this operation requires a qualified service person 310
• Ii when 310
• Iii the fan speed is different from the setting 310
• It will quiet down after about a minute 310
• Iv air blow direction is not as specified 310
• Ix the liquid crystal of the remote control show 88 310
• Moisture generated by defrost becomes steam and exists 310
• Normally the operation mode in the room where the unit is first run is given priority but the following situations are exceptions so please keep this in mind a if the operation mode of the first room is fan mode then using heating mode in any room after this will give priority to heating in this situation the air conditioner running in fan mode will go on standby b with the priority room setting active contact your daikin dealer for the operation that corresponds to your system 310
• Refer to air flow direction adjust 310
• The noise is heard when the drain pump is in operation 310
• The unit absorbs the smell of rooms furniture cigarettes etc and then emits them 310
• The unit will go into the above mode if either cooling dry or fan operation moder are set together with heating mode 310
• This is because operating mode is controlled by a micro computer as shown below depending on the operating moder of other connected indoor units when using in a multi system 310
• This is the noise of refrigerant caused by flow stop and flow change 310
• This is the sound of refrigerant gas flowing through both indoor and outdoor units 310
• This shows that the remote control is in normal condition this is continues temporary 310
• Under centralized control is displayed and operation is different from the remote control display 310
• V white mist comes out of a unit 310
• Vi noise of air conditioners 310
• Vii dust from the units 310
• Viii the units give off odors 310
• When the room temperature reaches the set temperature in heating mode the power supply from the outdoor unit stops and the indoor unit goes into whisper mode in a multi system the fan goes back and forth between stop and whisper this is to prevent the cool air from being blown directly onto anyone in the room 310
• Trouble shooting 311
• Warning 311
• Caution for diagnosis 03 313
• List of malfunction code 20 4 troubleshooting for ra indoor unit 22 313
• Part 8 troubleshooting 313
• Part 8troubleshooting 313
• Service check function 07 313
• Troubleshooting for bp unit 52 313
• Troubleshooting for outdoor unit 59 313
• Troubleshooting for skyair indoor unit 33 313
• Check 04 9 thermistor resistance temperature characteristics 07 10 pressure sensor 09 11 method of replacing the inverter s power transistors modules 10 314
• Caution for diagnosis 315
• Location of operation lamp 315
• Troubleshooting with the operation lamp ra indoor unit 315
• Foreword 316
• Troubleshooting with the led on the skyair indoor unit 316
• Troubleshooting with the led on the outdoor unit 317
• Caution for diagnosis sien18 622 318
• Led1 h2p led2 h3p led3 h4p 318
• Led4 h5p 318
• Leda h1p 318
• Troubleshooting 318
• Troubleshooting with the led on the bp unit 318
• Check method 1 319
• In the arc433a series remote control the temperature display sections on the main unit indicate corresponding codes 319
• 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 319
• Press the timer cancel button repeatedly until a continuous beep is produced the code indication changes in the sequence shown below and notifies with a long beep 319
• Ra indoor unit infrared remote control 319
• Service check function 319
• When the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 319
• Check method 2 320
• Error code list in relation to ra indoor units 322
• Not used for troubleshooting 322
• Explanation 323
• In s pection mode 323
• Loc a l s etting mode 323
• Norm a l mode 323
• S ervice mode 323
• Skyair indoor unit inspection test button 323
• Te s t oper a tion mode 323
• The following modes can be selected by using the inspection test operation button on the remote control 323
• Explanation 324
• If operation stops due to malfunction the remote control s operation led blinks and malfunction code is displayed even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered the malfunction code enables you to tell what kind of malfunction caused operation to stop see page 316 for malfunction code and malfunction contents 324
• Service check function sien18 622 324
• Skyair indoor unit wired remote control 324
• Troubleshooting 324
• Procedure 325
• Skyair indoor unit infrared remote control 325
• Service check function sien18 622 326
• Troubleshooting 326
• Blinks 327
• High probability of malfunction possibility of malfunction low probability of malfunction no possibility of malfunction do not replace 327
• Indoor unit 327
• Off no connection with troubleshooting 327
• Sky air indoor unit error codes and led indication 327
• Symbols 327
• System 327
• Detail description on next page 328
• Malfunction code indication by outdoor unit pcb 328
• Push the mode bs1 button and returns to setting mode 1 328
• Push the return bs3 button and switches to the initial status of monitor mode 328
• Push the return bs3 button once to display first digit of malfunction code 328
• Push the set bs2 button and set the led display to a setting item 328
• Push the set bs2 button once to display malfunction location 328
• Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 328
• Push the set bs2 button once to display second digit of malfunction code 328
• Service check function sien18 622 328
• To enter the monitor mode push the mode bs1 button when in setting mode 1 328
• Troubleshooting 328
• Sien18 622 service check function 329
• Troubleshooting 317 329
• Detail description on next page 330
• Push the mode bs1 button and returns to setting mode 1 330
• Push the return bs3 button and switches to the initial status of monitor mode 330
• Push the return bs3 button once to display first digit of malfunction code 330
• Push the set bs2 button and set the led display to a setting item 330
• Push the set bs2 button once to display malfunction location 330
• Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 330
• Push the set bs2 button once to display second digit of malfunction code 330
• Service check function sien18 622 330
• To enter the monitor mode push the mode bs1 button when in setting mode 1 330
• Troubleshooting 330
• Sien18 622 service check function 331
• Troubleshooting 319 331
• List of malfunction code 332
• The system operates for malfunction codes indicated in black squares however be sure to check and repair 333
• Evaluation of zero cross detection of power supply by indoor unit 334
• Faulty indoor unit pcb faulty connector connection 334
• Indoor unit pcb abnormality 334
• Malfunction decision conditions 334
• Method of malfunction detection 334
• Note connector nos vary depending on models control connector 334
• Remote control display 334
• Supposed causes 334
• Troubleshooting 334
• Troubleshooting for ra indoor unit 334
• When there is no zero cross detection in approximately 10 continuous seconds 334
• Freeze up protection control or high pressure control 335
• Malfunction decision conditions 335
• Method of malfunction detection 335
• Remote control display 335
• Supposed causes 335
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 336
• Caution 336
• Check no 6 refer to p 31 336
• Troubleshooting 336
• Troubleshooting for ra indoor unit sien18 622 336
• Ac motor wall 20 35 c series duct floor ceiling 337
• Check no 6 refer to p 32 337
• Fan motor or related abnormality 337
• Malfunction decision conditions 337
• Method of malfunction detection 337
• Operation halt due to short circuit inside the fan motor winding operation halt due to breaking of wire inside the fan motor operation halt due to breaking of the fan motor lead wires operation halt due to faulty capacitor of the fan motor detection error due to faulty control pcb 337
• Remote control display 337
• Supposed causes 337
• The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 337
• Troubleshooting 337
• When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 337
• Dc motor wall 20 35 d series and 50 71 class floor 338
• Malfunction decision conditions 338
• Method of malfunction detection 338
• Remote control display 338
• Supposed causes 338
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 339
• Caution 339
• Check no 1 refer to p 30 339
• Check no 2 refer to p 30 339
• Sien18 622 troubleshooting for ra indoor unit 339
• Troubleshooting 339
• Troubleshooting 327 339
• Malfunction decision conditions 340
• Method of malfunction detection 340
• Remote control display 340
• Supposed causes 340
• Thermistor or related abnormality indoor unit 340
• Troubleshooting 340
• Check no 3 refer to p 30 341
• Malfunction decision conditions 341
• Method of malfunction detection 341
• Remote control display 341
• Shutter drive motor defective shutter limit switch defective shutter itself deformed warped shutter s sealing material too thick detection error by broken relay harness or disconnected connector detection error due to defective pcb 2 foreign substance in blow port 341
• Shutter drive motor shutter limit switch abnormality 341
• Sien18 622 troubleshooting for ra indoor unit 341
• Supposed causes 341
• 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 341
• Troubleshooting 341
• Troubleshooting 329 341
• When the shutter is open the limit switch is closed 341
• Check connector connection 2 check motor control voltage output pins 2 1 342
• 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 1 342
• Check no 1 342
• Check no 2 342
• Check no 3 342
• Fan motor connector output check 342
• Limit switch continuity check 342
• 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 342
• The shutter can be opened and closed with hand keep the shutter open and closed all the way for each continuity check steps 342
• Check no 6 343
• 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 343
• Thermistor resistance check 343
• Check no 6 344
• Hall ic check 344
• Indoor unit pcb abnormality 345
• Troubleshooting for skyair indoor unit 345
• Applicable models 346
• Malfunction decision conditions 346
• Malfunction of drain water level system float type 346
• Method of malfunction detection 346
• Remote control display 346
• Supposed causes 346
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 347
• Sien18 622 troubleshooting for skyair indoor unit 347
• Troubleshooting 347
• Troubleshooting 335 347
• Applicable models 348
• Error in drain pipe installation faulty float switch faulty indoor unit pcb 348
• Malfunction decision conditions 348
• Malfunction of drain system 348
• Method of malfunction detection 348
• Remote control display 348
• Supposed causes 348
• Troubleshooting 348
• Troubleshooting for skyair indoor unit sien18 622 348
• Water leakage is detected based on float switch on off operation while the compressor is in non operation 348
• When the float switch changes from on to off while the compressor is in non operation 348
• Applicable models 349
• Detection by failure of signal for detecting number of turns to come from the fan motor 349
• Failure of indoor unit fan motor broken or disconnected wire failure of contact failure of indoor unit pcb 349
• Indoor unit fan motor lock 349
• Malfunction decision conditions 349
• Method of malfunction detection 349
• Remote control display 349
• Sien18 622 troubleshooting for skyair indoor unit 349
• Supposed causes 349
• Troubleshooting 349
• Troubleshooting 337 349
• When number of turns can t be detected even when output voltage to the fan is maximum 349
• Applicable models 350
• Malfunction decision conditions 350
• Malfunction of indoor unit fan motor 350
• Method of malfunction detection 350
• Remote control display 350
• Supposed causes 350
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 351
• Check no 1 refer to p 50 351
• Sien18 622 troubleshooting for skyair indoor unit 351
• Troubleshooting 351
• Troubleshooting 339 351
• Swing flap motor malfunction lock 352
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 353
• Sien18 622 troubleshooting for skyair indoor unit 353
• Troubleshooting 353
• Troubleshooting 341 353
• Applicable models 354
• Capacity is determined according to resistance of the capacity setting adapter and the memory inside the ic memory on the indoor unit pcb and whether the value is normal or abnormal is determined 354
• Failure of capacity setting adapter connection failure of indoor unit pcb 354
• Ffq fcq fbq fhq 354
• Malfunction decision conditions 354
• Malfunction of capacity setting 354
• Method of malfunction detection 354
• Note capacity is factory set in the data ic on the pcb a capacity setting adapter that matches the capacity of the unit is required in the following case if the indoor pcb installed at the factory is for some reason changed at the installation site the capacity will not be contained in the replacement pcb if you connect a capacity setting adapter to a pcb in which the capacity is memorized the capacity setting for the pcb will become the capacity setting of the adapter priority of capacity setting adapter 354
• Operation and 1 when the capacity code is not contained in the pcb s memory and the capacity setting adapter is not connected 2 when a capacity that doesn t exist for that unit is set 354
• Remote control display 354
• Supposed causes 354
• Troubleshooting 354
• Troubleshooting for skyair indoor unit sien18 622 354
• Applicable models 355
• Check no 2 refer to p 51 355
• Failure of the sensor itself broken or disconnected wire failure of electronic circuitry indoor unit pcb failure of connector contact 355
• Ffq fcq fbq fhq 355
• Malfunction decision conditions 355
• Malfunction detection is carried out by temperature detected by heat exchanger sensor 355
• Malfunction of heat exchanger thermistor r2t 355
• Method of malfunction detection 355
• Remote control display 355
• Sien18 622 troubleshooting for skyair indoor unit 355
• Supposed causes 355
• Troubleshooting 355
• Troubleshooting 343 355
• When the heat exchanger thermistor becomes disconnected or shorted while the unit is running 355
• Applicable models 356
• Check no 2 refer to p 51 356
• Failure of the sensor itself broken or disconnected wire failure of electronic circuitry indoor unit pcb failure of connector contact 356
• Ffq fcq fbq fhq 356
• Malfunction decision conditions 356
• Malfunction detection is carried out by temperature detected by heat exchanger sensor r3t 356
• Malfunction of heat exchanger thermistor r3t 356
• Method of malfunction detection 356
• Remote control display 356
• Supposed causes 356
• Troubleshooting 356
• Troubleshooting for skyair indoor unit sien18 622 356
• When the heat exchanger thermistor becomes disconnected or shorted while the unit is running 356
• Applicable models 357
• Check no 2 refer to p 51 357
• Failure of the sensor itself broken or disconnected wire failure of indoor unit pcb failure of connector contact 357
• Ffq fcq fbq fhq 357
• Malfunction decision conditions 357
• Malfunction detection is carried out by temperature detected by suction air temperature sensor 357
• Malfunction of suction air thermistor 357
• Method of malfunction detection 357
• Remote control display 357
• Sien18 622 troubleshooting for skyair indoor unit 357
• Supposed causes 357
• Troubleshooting 357
• Troubleshooting 345 357
• When the suction air temperature sensor s thermistor becomes disconnected or shorted while the unit is running 357
• Applicable models 358
• Check no 2 refer to p 51 358
• Even if remote control thermistor is faulty system is possible to operate by system thermistor malfunction detection is carried out by temperature detected by remote control thermistor 358
• Failure of sensor itself broken wire 358
• Ffq fcq fbq fhq 358
• Malfunction decision conditions 358
• Malfunction of remote control thermistor 358
• Method of malfunction detection 358
• Remote control display 358
• Supposed causes 358
• Troubleshooting 358
• Troubleshooting for skyair indoor unit sien18 622 358
• When the remote control thermistor becomes disconnected or shorted while the unit is running 358
• Applicable models 359
• Failure of remote control failure of indoor pcb outside cause noise etc connection of 2 master remote controls when using 2 remote controls 359
• Ffq fcq fbq fhq 359
• Malfunction decision conditions 359
• Method of malfunction detection 359
• Microcomputer checks if transmission between indoor unit and remote control is normal 359
• Remote control display 359
• Sien18 622 troubleshooting for skyair indoor unit 359
• Supposed causes 359
• Transmission error between indoor unit and remote control 359
• Troubleshooting 359
• Troubleshooting 347 359
• When transmission is not carried out normally for a certain amount of time 359
• Applicable models 360
• Ffq fcq fbq fhq 360
• In case of controlling with 2 remote control check the system using microcomputer if signal transmission between indoor unit and remote control main and sub is normal 360
• Malfunction decision conditions 360
• Method of malfunction detection 360
• Normal transmission does not continue for specified period 360
• Remote control display 360
• Supposed causes 360
• Transmission error between main and sub remote control 360
• Transmission error between main remote control and sub remote control connection among sub remote controls faulty remote control pcb 360
• Troubleshooting 360
• Troubleshooting for skyair indoor unit sien18 622 360
• Applicable models 361
• Ffq fcq fbq fhq 361
• Incorrect field setting 361
• Indoor outdoor bp transmission line faulty remote control wiring 361
• Malfunction decision conditions 361
• Malfunction of field setting switch 361
• Method of malfunction detection 361
• Remote control display 361
• Sien18 622 troubleshooting for skyair indoor unit 361
• Supposed causes 361
• Troubleshooting 361
• Troubleshooting 349 361
• 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 362
• Check no 01 362
• Troubleshooting 362
• Troubleshooting for skyair indoor unit sien18 622 362
• Check for thermistors 363
• Check no 02 363
• Disconnect the thermistor connector from pcb then measure the resistance by using a tester 363
• Detection by checking continuity and lack of connector 364
• Faulty harness of electronic expansion valve incorrect connectors connection of electronic expansion valve 364
• Malfunction decision conditions 364
• Malfunction is determined by no common voltage applied when turning the power supply on 364
• Malfunction of electronic expansion valve 364
• Method of malfunction detection 364
• Remote control display 364
• Supposed causes 364
• Troubleshooting 364
• Troubleshooting for bp unit 364
• Faulty bp unit pcb 365
• Faulty bp liquid or gas pipe temperature sensor faulty connectors connection of bp liquid or gas pipe temperature sensor 366
• Faulty bp liquid or gas pipe thermistor 366
• Malfunction decision conditions 366
• Method of malfunction detection 366
• Remote control display 366
• Supposed causes 366
• Troubleshooting 366
• When the bp liquid or gas pipe temperature sensor became short circuited or open 366
• Malfunction decision conditions 367
• Method of malfunction detection 367
• Outdoor unit indication 367
• Supposed causes 367
• Transmission error between indoor unit and bp unit 367
• Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 368
• Caution 368
• Check no 4 refer to p 58 368
• Troubleshooting 368
• Troubleshooting for bp unit sien18 622 368
• Check no 4 refer to p 58 369
• Incorrect connection of transmission wire faulty outdoor unit power supply faulty bp unit pcb faulty outdoor unit pcb distortion of power supply wave 369
• Malfunction decision conditions 369
• Method of malfunction detection 369
• Outdoor unit indication 369
• Sien18 622 troubleshooting for bp unit 369
• Supposed causes 369
• Transmission error between outdoor unit and bp unit 369
• Transmission error is detected when the outdoor unit could not received the data from bp unit correctly 369
• Troubleshooting 369
• Troubleshooting 357 369
• When the data from bp unit could not be correctly received continuously for 10 minutes 369
• Check no 4 370
• Power supply waveforms check 370
• Faulty outdoor unit pcb 371
• Troubleshooting for outdoor unit 371
• Actuation of high pressure switch 372
• Applicable models 372
• Malfunction decision conditions 372
• Method of malfunction detection 372
• Remote control display 372
• Supposed causes 372
• Check no 1 refer to p 04 373
• Sien18 622 troubleshooting for outdoor unit 373
• Troubleshooting 373
• Troubleshooting 361 373
• Actuation of low pressure sensor 374
• Check no 2 refer to p 05 375
• Sien18 622 troubleshooting for outdoor unit 375
• Troubleshooting 375
• Troubleshooting 363 375
• Aii outdoor unit models 376
• Applicable models 376
• Compressor lock high differential pressure 0 mpa or more incorrect uvw wiring faulty inverter pcb stop valve is left in closed 376
• Compressor motor lock 376
• 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 376
• Malfunction decision conditions 376
• Method of malfunction detection 376
• Remote control display 376
• Supposed causes 376
• This malfunction will be output when the inverter compressor motor does not start up even in forced startup mode 376
• Troubleshooting 376
• Troubleshooting for outdoor unit sien18 622 376
• Aii outdoor unit models 377
• Applicable models 377
• Check no 3 refer to p 06 377
• Malfunction decision conditions 377
• Malfunction of fan motor system is detected according to the fan speed detected by hall ic when the fan motor runs 377
• Malfunction of fan motor the harness connector between fan motor and pcb is left in disconnected or faulty connector fan does not run due to foreign matters tangled clearing condition operate for 5 minutes normal 377
• Malfunction of outdoor unit fan motor 377
• Method of malfunction detection 377
• Remote control display 377
• Sien18 622 troubleshooting for outdoor unit 377
• Supposed causes 377
• Troubleshooting 377
• Troubleshooting 365 377
• When the fan runs with speed less than a specified one for 6 seconds or more when the fan motor running conditions are met when malfunction is generated 4 times the system shuts down 377
• Malfunction of moving part of electronic expansion valve y1e y3e 378
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 379
• Caution 379
• Sien18 622 troubleshooting for outdoor unit 379
• Troubleshooting 379
• Troubleshooting 367 379
• Abnormal discharge pipe temperature 380
• Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor 380
• Aii outdoor unit models 380
• Applicable models 380
• Faulty discharge pipe temperature sensor faulty connection of discharge pipe temperature sensor faulty outdoor unit pcb 380
• Malfunction decision conditions 380
• Method of malfunction detection 380
• Refer to thermistor resistance temperature characteristics table on p407 380
• Remote control display 380
• Supposed causes 380
• Troubleshooting 380
• Troubleshooting for outdoor unit sien18 622 380
• When the discharge pipe temperature rises to an abnormally high level when the discharge pipe temperature rises suddenly 380
• All outdoor unit models 381
• Applicable models 381
• Excessive charging of refrigerant is detected by using the heat exchanging deicer temperature during a check operation 381
• Malfunction decision conditions 381
• Method of malfunction detection 381
• Refer to thermistor resistance temperature characteristics table on p407 381
• Refrigerant overcharge misalignment of the thermistor for heat exchanger defect of the thermistor for heat exchanger 381
• Refrigerant overcharged 381
• Remote control display 381
• Sien18 622 troubleshooting for outdoor unit 381
• Supposed causes 381
• Troubleshooting 381
• Troubleshooting 369 381
• When the amount of refrigerant which is calculated by using the heat exchanging deicer temperature during a check run exceeds the standard 381
• Aii outdoor unit models 382
• Applicable models 382
• Defect of thermistor r1t for outdoor air defect of outdoor unit pcb a1p 382
• Malfunction decision conditions 382
• Malfunction is detected from the temperature detected by the outdoor air thermistor 382
• Malfunction of thermistor for outdoor air r1t 382
• Method of malfunction detection 382
• Refer to thermistor resistance temperature characteristics table on p407 382
• Remote control display 382
• Supposed causes 382
• Troubleshooting 382
• Troubleshooting for outdoor unit sien18 622 382
• When the outside air temperature thermistor has short circuit or open circuit 382
• Aii outdoor unit models 383
• Applicable models 383
• Defect of thermistor r2t for outdoor unit discharge pipe defect of outdoor unit pcb a1p 383
• Malfunction decision conditions 383
• Malfunction is detected from the temperature detected by discharge pipe temperature thermistor 383
• Malfunction of discharge pipe thermistor r2t 383
• Method of malfunction detection 383
• Refer to thermistor resistance temperature characteristics table on p407 383
• Remote control display 383
• Sien18 622 troubleshooting for outdoor unit 383
• Supposed causes 383
• Troubleshooting 383
• Troubleshooting 371 383
• When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected 383
• Aii outdoor unit models 384
• Applicable models 384
• Defect of thermistor r3t r5t for outdoor unit suction pipe defect of outdoor unit pcb a1p 384
• Malfunction decision conditions 384
• Malfunction is detected from the temperature detected by the thermistor for suction pipe 1 2 384
• Malfunction of thermistor r3t r5t for suction pipe1 2 384
• Method of malfunction detection 384
• Refer to thermistor resistance temperature characteristics table on p407 384
• Remote control display 384
• Supposed causes 384
• Troubleshooting 384
• Troubleshooting for outdoor unit sien18 622 384
• When a short circuit or an open circuit in the thermistor for suction pipe 1 2 are detected 384
• Aii outdoor unit models 385
• Applicable models 385
• Defect of thermistor r4t for outdoor unit heat exchanger defect of outdoor unit pcb a1p 385
• Malfunction decision conditions 385
• Malfunction is detected from the temperature detected by the heat exchanger thermistor 385
• Malfunction of thermistor r4t for outdoor unit heat exchanger 385
• Method of malfunction detection 385
• Refer to thermistor resistance temperature characteristics table on p407 385
• Remote control display 385
• Sien18 622 troubleshooting for outdoor unit 385
• Supposed causes 385
• Troubleshooting 385
• Troubleshooting 373 385
• When a short circuit or an open circuit in the heat exchange thermistor is detected 385
• Aii outdoor unit models 386
• Applicable models 386
• Defect of thermistor r7t for outdoor unit liquid pipe defect of outdoor unit pcb a1p 386
• Malfunction decision conditions 386
• Malfunction is detected from the temperature detected by the liquid pipe thermistor 386
• Malfunction of thermistor r7t for outdoor unit liquid pipe 386
• Method of malfunction detection 386
• Refer to thermistor resistance temperature characteristics table on p407 386
• Remote control display 386
• Supposed causes 386
• Troubleshooting 386
• Troubleshooting for outdoor unit sien18 622 386
• When a short circuit or an open circuit in the heat exchange thermistor is detected 386
• Aii outdoor unit models 387
• Applicable models 387
• Faulty subcooling heat exchanger gas pipe thermistor r6t faulty outdoor unit pcb 387
• Malfunction decision conditions 387
• Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor 387
• Malfunction of subcooling heat exchanger thermistor r6t 387
• Method of malfunction detection 387
• Refer to thermistor resistance temperature characteristics table on p407 387
• Remote control display 387
• Sien18 622 troubleshooting for outdoor unit 387
• Supposed causes 387
• Troubleshooting 387
• Troubleshooting 375 387
• When the subcooling heat exchanger gas pipe thermistor is short circuited or open 387
• 1 voltage measurement point 388
• 2 refer to pressure sensor pressure voltage characteristics table on p409 388
• Aii outdoor unit models 388
• Applicable models 388
• Defect of high pressure sensor connection of low pressure sensor with wrong connection defect of outdoor unit pcb 388
• Malfunction decision conditions 388
• Malfunction is detected from the pressure detected by the high pressure sensor 388
• Malfunction of high pressure sensor 388
• Method of malfunction detection 388
• Remote control display 388
• Supposed causes 388
• Troubleshooting 388
• Troubleshooting for outdoor unit sien18 622 388
• When the high pressure sensor is short circuit or open circuit 388
• 1 voltage measurement point 389
• 2 refer to pressure sensor pressure voltage characteristics table on p409 389
• Aii outdoor unit models 389
• Applicable models 389
• Defect of low pressure sensor connection of high pressure sensor with wrong connection defect of outdoor unit pcb 389
• Malfunction decision conditions 389
• Malfunction is detected from pressure detected by low pressure sensor 389
• Malfunction of low pressure sensor 389
• Method of malfunction detection 389
• Remote control display 389
• Sien18 622 troubleshooting for outdoor unit 389
• Supposed causes 389
• Troubleshooting 389
• Troubleshooting 377 389
• When the low pressure sensor is short circuit or open circuit 389
• Applicable models 390
• Malfunction decision conditions 390
• Malfunction of pcb 390
• Method of malfunction detection 390
• Remote control display 390
• Supposed causes 390
• Troubleshooting 390
• Actuation of fin thermal actuates above 83 c defect of inverter pcb defect of fin thermistor 391
• Aii outdoor unit models 391
• Applicable models 391
• Fin temperature is detected by the thermistor of the radiation fin 391
• Malfunction decision conditions 391
• Malfunction of inverter radiating fin temperature rise 391
• Method of malfunction detection 391
• Remote control display 391
• Sien18 622 troubleshooting for outdoor unit 391
• Supposed causes 391
• Troubleshooting 391
• Troubleshooting 379 391
• When the temperature of the inverter radiation fin increases above 83 c 391
• Aii outdoor unit models 392
• Applicable models 392
• Defect of compressor coil disconnected defective insulation compressor start up malfunction mechanical lock defect of inverter pcb 392
• Higher voltage than actual is displayed when the inverter output voltage is checked by tester 392
• Inverter compressor abnormal 392
• Malfunction decision conditions 392
• Malfunction is detected from current flowing in the power transistor 392
• Method of malfunction detection 392
• Remote control display 392
• Supposed causes 392
• Troubleshooting 392
• Troubleshooting for outdoor unit sien18 622 392
• When an excessive current flows in the power transistor instantaneous overcurrent also causes activation 392
• Aii outdoor unit models 393
• Applicable models 393
• Compressor overload compressor coil disconnected defect of outdoor unit pcb a1p 393
• Inverter current abnormal 393
• Malfunction decision conditions 393
• Malfunction is detected by current flowing in the power transistor 393
• Method of malfunction detection 393
• Remote control display 393
• Sien18 622 troubleshooting for outdoor unit 393
• Supposed causes 393
• Troubleshooting 393
• Troubleshooting 381 393
• When overload in the compressor is detected 393
• Aii outdoor unit models 394
• Applicable models 394
• Defect of compressor pressure differential start defect of outdoor unit pcb a1p 394
• Inverter start up error 394
• Malfunction decision conditions 394
• Malfunction is detected from current flowing in the power transistor 394
• Method of malfunction detection 394
• Remote control display 394
• Supposed causes 394
• Troubleshooting 394
• Troubleshooting for outdoor unit sien18 622 394
• When overload in the compressor is detected during startup 394
• Aii outdoor unit models 395
• Applicable models 395
• Check the communication state between inverter pcb and control pcb by micro computer 395
• Malfunction decision conditions 395
• Malfunction of connection between the inverter microcomputer and outdoor control microcomputer defect of outdoor unit pcb defect of noise filter external factor noise etc 395
• Malfunction of transmission between inverter and control pcb 395
• Method of malfunction detection 395
• Remote control display 395
• Sien18 622 troubleshooting for outdoor unit 395
• Supposed causes 395
• Troubleshooting 395
• Troubleshooting 383 395
• When the correct communication is not conducted in certain period 395
• High voltage of capacitor in main inverter circuit 396
• Aii outdoor unit models 397
• Applicable models 397
• Defect of radiator fin temperature sensor defect of outdoor unit pc board a1p 397
• Malfunction decision conditions 397
• Malfunction of inverter radiating fin temperature rise sensor 397
• Method of malfunction detection 397
• Remote control display 397
• Resistance of radiation fin thermistor is detected when the compressor is not operating 397
• Sien18 622 troubleshooting for outdoor unit 397
• Supposed causes 397
• Troubleshooting 397
• Troubleshooting 385 397
• When the resistance value of thermistor becomes a value equivalent to open or short circuited status h malfunction is not decided while the unit operation is continued p4 will be displayed by pressing the inspection button 397
• Aii outdoor unit models 398
• Applicable models 398
• Check the communication state between inverter pcb and control pcb by micro computer 398
• Faulty combination of inverter and fan driver 398
• Malfunction decision conditions 398
• Method of malfunction detection 398
• Mismatching of inverter pcb faulty field setting 398
• Refer to field setting from outdoor unit on p152 398
• Remote control display 398
• Supposed causes 398
• Troubleshooting 398
• Troubleshooting for outdoor unit sien18 622 398
• When the communication data about inverter pcb type is incorrect 398
• Applicable models 399
• Low pressure drop due to refrigerant shortage or electronic expansion valve failure 399
• Malfunction decision conditions 399
• Method of malfunction detection 399
• Remote control display 399
• Supposed causes 399
• 1 refer to thermistor resistance temperature characteristics table on p407 2 refer to pressure sensor pressure voltage characteristics table on p409 400
• 2 voltage measurement point 400
• Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 400
• Troubleshooting 400
• Troubleshooting for outdoor unit sien18 622 400
• Power supply insufficient or instantaneous failure 401
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 402
• Check no 3 refer to p 06 402
• Troubleshooting 402
• Troubleshooting for outdoor unit sien18 622 402
• Check operation not executed 403
• Applicable models 404
• Malfunction decision conditions 404
• Malfunction of transmission between indoor units and outdoor units 404
• Method of malfunction detection 404
• Remote control display 404
• Supposed causes 404
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 405
• Caution 405
• Sien18 622 troubleshooting for outdoor unit 405
• Troubleshooting 405
• Troubleshooting 393 405
• Aii indoor unit models 406
• Applicable models 406
• In case of controlling with 2 remote control check the system using microcomputer is signal transmission between indoor unit and remote control main and sub is normal 406
• Malfunction decision conditions 406
• Malfunction of indoor unit remote control transmission connection of two main remote controls when using 2 remote controls defect of indoor unit pcb defect of remote control pcb malfunction of transmission caused by noise 406
• Malfunction of transmission between remote control and indoor unit 406
• Method of malfunction detection 406
• Normal transmission does not continue for specified period 406
• Remote control display 406
• Supposed causes 406
• Troubleshooting 406
• Troubleshooting for outdoor unit sien18 622 406
• Aii indoor unit models 407
• Applicable models 407
• In case of controlling with 2 remote control check the system using microcomputer if signal transmission between indoor unit and remote control main and sub is normal 407
• Malfunction decision conditions 407
• Malfunction of transmission between main and sub remote control connection between sub remote controls defect of remote control pcb 407
• Malfunction of transmission between main and sub remote controls 407
• Method of malfunction detection 407
• Normal transmission does not continue for specified period 407
• Remote control display 407
• Sien18 622 troubleshooting for outdoor unit 407
• Supposed causes 407
• Troubleshooting 407
• Troubleshooting 395 407
• Malfunction of transmission between indoor and outdoor units in the same system 408
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 409
• Caution 409
• Sien18 622 troubleshooting for outdoor unit 409
• Troubleshooting 409
• Troubleshooting 397 409
• Aii indoor unit models 410
• Applicable models 410
• Excess of connected indoor units defect of outdoor unit pcb a1p mismatching of the refrigerant type of indoor and outdoor unit setting of outdoor pcb was not conducted after replacing to spare parts pcb 410
• Excessive number of indoor units 410
• Malfunction decision conditions 410
• Method of malfunction detection 410
• Remote control display 410
• Supposed causes 410
• The number of indoor units that can be connected to a single outdoor unit system depends on the type of outdoor unit 410
• Troubleshooting 410
• Troubleshooting for outdoor unit sien18 622 410
• Address duplication of central remote control 411
• Address duplication of centralized remote control defect of indoor unit pcb 411
• Aii indoor unit models 411
• Applicable models 411
• Malfunction decision conditions 411
• Method of malfunction detection 411
• Remote control display 411
• Sien18 622 troubleshooting for outdoor unit 411
• Supposed causes 411
• Troubleshooting 411
• Troubleshooting 399 411
• Applicable models 412
• Malfunction decision conditions 412
• Malfunction of transmission between central remote control and indoor unit 412
• Method of malfunction detection 412
• Remote control display 412
• Supposed causes 412
• Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 413
• Caution 413
• Sien18 622 troubleshooting for outdoor unit 413
• Troubleshooting 413
• Troubleshooting 401 413
• All indoor unit models all outdoor unit models 414
• Applicable models 414
• Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units failure to execute check operation defect of indoor unit pc board stop valve is left in closed 414
• Malfunction decision conditions 414
• Method of malfunction detection 414
• 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 414
• 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 414
• Remote control display 414
• Supposed causes 414
• System is not set yet 414
• 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 414
• Troubleshooting 414
• Troubleshooting for outdoor unit sien18 622 414
• All indoor unit models all outdoor unit models 415
• Applicable models 415
• Improper connection of transmission wiring between outdoor unit and outdoor unit outside control adapter defect of indoor unit pcb defect of outdoor unit pcb a1p 415
• Malfunction decision conditions 415
• Malfunction of system refrigerant system address undefined 415
• Method of malfunction detection 415
• Remote control display 415
• Sien18 622 troubleshooting for outdoor unit 415
• Supposed causes 415
• Troubleshooting 415
• Troubleshooting 403 415
• Check for causes of rise in high pressure referring to the fault tree analysis fta shown below probe the faulty points 416
• Check no 1 416
• Check sien18 622 416
• Troubleshooting 416
• Check for causes of drop in low pressure referring to the fault tree analysis fta shown below probe the faulty points 417
• Check no 2 417
• Sien18 622 check 417
• Troubleshooting 405 417
• 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 418
• Check no 03 418
• Indoor unit for air suction r1t for liquid pipe r2t for gas pipe r3t 419
• Outdoor unit for fin thermistor r1t 419
• 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 419
• Sien18 622 thermistor resistance temperature characteristics 419
• Thermistor resistance temperature characteristics 419
• Troubleshooting 407 419
• Outdoor unit thermistors for discharge pipe r2t 420
• Thermistor resistance temperature characteristics sien18 622 420
• Troubleshooting 420
• Pressure sensor 421
• Method of replacing the inverter s power transistors modules 422
• Faulty compressor ground fault ground leakage 423
• Faulty fan motor ground leakage 423
• Power module checking 423
• Sien18 622 method of replacing the inverter s power transistors modules 423
• The following abnormalities are also doubted besides the pc board abnormality 423
• There needs to be none of each value variation 423
• Troubleshooting 411 423
• When using the digital type of multiple tester make measurement in diode check mode 423
• Part 9 appendix 425
• Piping diagrams 14 425
• Wiring diagrams 22 425
• Appendix 426
• Outdoor units 426
• Piping diagrams 426
• Piping diagrams sien18 622 426
• Rmks112 140 160ev1a rmks112 140 160evm rmxs112 140 160ev1a rmxs112 140 160evlt 426
• Appendix 415 427
• Bp units 427
• Bpmks967a2 bpmks967b2b 427
• Bpmks967a3 bpmks967b3b 427
• D048285a 427
• D048286b 427
• Sien18 622 piping diagrams 427
• Appendix 428
• Ftks20 25 35dvma ftks25 35dvm ftks25 35evma 428
• Ftks50 60fvma ftks50 60bvmb ftks50 60bvma8 ftxs50 60fvma ftxs50 60bvma8 ftxs50 60dvmt 428
• Ftxs20 25 35dvma ftxs25 35evma ftxs20 25 35dvmt 428
• Indoor units 428
• Piping diagrams sien18 622 428
• Wall mounted type 428
• Appendix 417 429
• Duct connected type 429
• Fdks25 35cavmb fdks50 60cvmb fdks25 35eavmb cdk x s25 35 50 60cvma cdk x s25 35eavma fdxs25 35 50 60cvma cdxs25 35 50 60dvmt cdxs25 35eavmt 429
• Ftks71fvma ftks71bvmb ftks71bvma8 ftxs71fvma ftxs71dvmt ftxs71bvma8 429
• Sien18 622 piping diagrams 429
• Appendix 430
• Floor ceiling suspended dual type 430
• Flxs25 35bvma flxs50 60bvma 430
• Piping diagrams sien18 622 430
• Appendix 419 431
• Floor standing type 431
• Fvxs35bvma 431
• Fvxs50bvma 431
• Sien18 622 piping diagrams 431
• Appendix 432
• C1220t 0 432
• Ceiling mounted cassette type 432
• Fcq35 50 60 71bve 432
• Ffq25 35 50 60b8v1b 432
• Ffq25 35b8v1b 432
• Ffq50 60b8v1b 432
• Field piping 432
• Indoor unit 432
• Piping diagrams sien18 622 432
• To outdoor unit 432
• Appendix 421 433
• C1220t 0 433
• Ceiling mounted built in type 433
• Ceiling suspended type 433
• Fbq60 71bv1 fbq60 71bvl 433
• Fhq35 50 60bvv1b 433
• Field piping 433
• Indoor unit 433
• Sien18 622 piping diagrams 433
• To outdoor unit 433
• Outdoor units 434
• Rmks112 140 160ev1a rmks112 140 160evm 434
• Wiring diagrams 434
• Appendix 423 435
• Rmxs112 140 160ev1a rmxs112 140 160evlt 435
• Sien18 622 wiring diagrams 435
• Appendix 436
• Bp units 436
• Bpmks967a2 436
• Bpmks967a3 436
• D048288 436
• D048438 436
• Wiring diagrams sien18 622 436
• Appendix 425 437
• Bpmks967b2b 437
• Bpmks967b3b 437
• D048565b 437
• D048566a 437
• Sien18 622 wiring diagrams 437
• Appendix 438
• Ftks20 25 35dvma ftks25 35dvm ftks25 35evma ftxs20 25 35dvma ftxs25 35evma 438
• Ftxs20 25 35dvmt 438
• Indoor units 438
• Wall mounted type 438
• Wiring diagrams sien18 622 438
• Appendix 427 439
• Ftks50bvmb ftks50bvma8 ftxs50bvma8 ftxs50dvmt 439
• Ftks60bvmb ftks50 60 71fvma ftks60 71bvma8 ftxs50 60 71fvma ftxs60 71bvma8 ftxs60 71dvmt 439
• Sien18 622 wiring diagrams 439
• Appendix 440
• Cdxs25 35 50 60dvmt cdxs25 35eavmt 440
• Duct connected type 440
• Fdks25 35cavmb fdks50 60cvmb fdks25 35eavmb cdks25 35 50 60cvma cdks25 35eavma fdxs25 35 50 60cvma cdxs25 35 50 60cvma cdxs25 35eavma 440
• Wiring diagrams sien18 622 440
• Appendix 429 441
• Floor ceiling suspended dual type 441
• Floor standing type 441
• Flxs25 35 50 60bvma 441
• Fvxs35 50bvma 441
• Sien18 622 wiring diagrams 441
• Appendix 442
• Ceiling mounted cassette type 442
• Ffq25 35 50 60b8v1b 442
• Wiring diagrams sien18 622 442
• Appendix 431 443
• Connector adapter for wiring connector 443
• Connector interface adapter for sky air series 443
• D04 8 79 3 443
• Fcq35 50 60 71bve 443
• H2p h3p 443
• Phase control circuit terminal strip terminal strip signal receiver circuit 443
• Printed circuit board capacitor m1f light emitting diode service monitor green magnetic relay m1p motor indoor fan motor drain pump motor swing flap 443
• Printed circuit board printed circuit board 443
• Push button on off light emitting diode on red light emitting diode timer green light emitting diode filter sign red light emitting diode defrost orange selector switch main sub selector switch wireless address set 443
• Selector switch emergency 443
• Sien18 622 wiring diagrams 443
• Signal transmission circuit 443
• Terminal connector field wiring 2 in case using central remote control connect it to the unit in accordance with the attached installation manual 3 x24a is connected when the infrared remote control kit is being used 4 remote control model varies according to the combination system confirm engineering materials and catalogs etc before connecting 5 ground the shield of the remote control cord to the indoor unit in case of using shield wire 6 symbols show as follows red red blk black wht white ylw yellow prp purple gry gray blu blue 7 confirm the method of setting the selector switch ss1 ss2 by installation manual and engineering data etc 443
• Thermistor air 443
• Thermistor air thermistor liquid thermistor coil float switch 443
• Thermo switch m1f embedded 443
• Appendix 444
• Ceiling mounted built in type 444
• Fbq60 71bv1 fbq60 71bvl 444
• Wiring diagrams sien18 622 444
• Appendix 433 445
• Ceiling suspended type 445
• D0 3 7 8 42d 445
• Fhq35 50 60bvv1b 445
• H2p h3p 445
• In case using central remote control connect it to the unit in accordance with the attached installation manual 4 x24a is connected when the wireless remote control kit is being used 5 remote control 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 445
• Sien18 622 wiring diagrams 445
• Drawings flow charts 453
• B 8400 ostend belgium 456
• Btw be 0412 120 336 456
• Naamloze vennootschap 456
• Rpr oostende 456
• Sien18 622 02 2007 prepared in belgium by lannoo copyright daikin 456
• Www daikin eu 456
• Zandvoordestraat 300 456