Daikin FXSQ20MVE [215/458] Caution 1 the air conditioner starts operation suddenly after power failure reset or the main power supply turned on again consequently the user might be surprised with question for the reason why 2 in the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates

Содержание

• Basic control 12 2
• Combination of outdoor units 4 model selection 2
• Function general 10 2
• Functional parts layout 7 2
• Introduction vi 2
• Model names of indoor outdoor units 2 external appearance 2
• Part 1 general information 2
• Part 2 specifications 1 2
• Part 3 refrigerant circuit 7 2
• Part 4 function 09 2
• R 410a heat pump 50hz 60hz 2
• Refrigerant circuit 8 2
• Refrigerant flow for each operation mode 2 2
• Specifications 2 2
• Table of contents 2
• Other control 57 3
• Outdoor unit pc board layout 96 3 field setting 97 3
• Outline of control indoor unit 65 3
• Part 5 test operation 79 3
• Part 6 troubleshooting 39 3
• Protection control 52 3
• Special control 43 3
• Symptom based troubleshooting 42 2 troubleshooting by remote controller 45 3
• Test operation 80 3
• Troubleshooting by indication on the remote controller 60 4
• Part 7 appendix 63 5
• Piping diagrams 64 5
• Troubleshooting op central remote controller 45 5
• Troubleshooting op unified on off controller 53 5
• Wiring diagrams for reference 75 5
• Drawings flow charts iii 6
• Example of connection r 410a type 25 7 thermistor resistance temperature characteristics 27 8 pressure sensor 29 9 method of checking the inverter s power transistors and diode modules 30 6
• Index i 6
• List of electrical and functional parts 06 6
• Option list 19 6
• Part 8 precautions for new refrigerant r 410a 33 6
• Piping installation point 23 6
• Precautions for new refrigerant r 410a 34 6
• Caution in repair 7
• Introduction 7
• Safety cautions 7
• Warning 7
• Caution 8
• Cautions regarding products after repair 8
• Warning 8
• Caution 9
• Inspection after repair 9
• Warning 9
• Caution 10
• Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 10
• Using icons 10
• Using icons list 10
• Preface 11
• Part 1 general information 12
• E the unit with anti corrosion treatment 13
• General information 13
• Heat pump rxyq 13
• Heat pump rxyq 5p a 8p a 10p a 12p a 14p a 16p a 18p a 20p a 22p a y1 e yl e tl e 24p a 26p a 28p a 30p a 32p a 34p a 36p a 38p a 40p a 42p a 44p a 46p a 48p a 50p a 52p a 54p a 13
• High cop series energy saving series 13
• Indoor units 13
• Model names of indoor outdoor units 13
• Model names of indoor outdoor units si34 803 13
• Note fxdq has following 2 series as show below fxdq pb nbvet without drain pump fxdq pb nbve with drain pump bev unit is required for each indoor unit ma rohs directive models specifications dimensions and other functions are not changed compared with m type 13
• Outdoor units normal series 13
• Power supply ve 1 phase 220 240v 50hz v1 1 phase 220 240v 50hz y1 3 phase 380 415v 50hz yl 3 phase 380v 60hz tl 3 phase 220v 60hz 13
• Series model name power supply 13
• Y1 e yl e tl e 13
• Ceiling mounted built in type 14
• Ceiling mounted cassette corner type 14
• Ceiling mounted cassette type double flow 14
• Ceiling mounted cassette type round flow 14
• Ceiling mounted duct type 14
• Ceiling mounted duct type middle and high static pressure 14
• Ceiling suspended cassette type connection unit series 14
• Ceiling suspended type 14
• Concealed floor standing type 14
• External appearance 14
• Floor standing type 14
• General information 3 14
• Indoor units 14
• Si34 803 external appearance 14
• Slim ceiling mounted duct type 14
• Wall mounted type 14
• Normal series space saving series 15
• Outdoor units 15
• Rxyq12p a 14p a 16p a 18p a 15
• Rxyq20p a 22p a 24p a 26p a 28p a rxyq30p a 32p a 34p a 36p a 15
• Rxyq38p a 40p a 42p a 44p a 46p a rxyq48p a 50p a 52p a 54p a 15
• Rxyq5p a rxyq8p a 10p a 15
• High cop series energy saving series 16
• Combination of outdoor units 17
• General information 19
• High cop type energy saving type 19
• Model selection 19
• Model selection si34 803 19
• Outdoor units normal type space saving type 19
• Vrv iii heat pump series 19
• Connectable indoor unit 20
• General information 9 20
• Hp 2 hp 2 hp 3 hp 4hp 5hp 8hp 10hp 20
• Indoor unit capacity 20
• New refrigerant model code p20 type p25 type p32 type p40 type p50 type p63 type p80 type p100 type p125 type p200 type p250 type selecting model capacity 2 kw 2 kw 3 kw 4 kw 5 kw 7 kw 9 kw 11 kw 14 kw 22 kw 28 kw equivalent output 0 hp 1hp 20
• Note fxdq has following 2 series as show below fxdq pb nbvet without drain pump fxdq pb nbve with drain pump bev unit is required for each indoor unit 20
• Si34 803 model selection 20
• Use the above tables to determine the capacities of indoor units to be connected make sure the total capacity of indoor units connected to each outdoor unit is within the specified value kw the total capacity of connected indoor units must be within a range of 50 to 130 of the rated capacity of the outdoor unit in some models it is not possible to connect the maximum number of connectable indoor units select models so the total capacity of connected indoor units conforms to the specification 20
• Differences from conventional models 21
• Part 2 specifications 22
• Specifications 2 22
• Outdoor unit s 23
• Specifications 23
• Specifications si34 803 23
• Si34 803 specifications 24
• Specifications 13 24
• Specifications 25
• Specifications si34 803 25
• Si34 803 specifications 26
• Specifications 15 26
• Specifications 27
• Specifications si34 803 27
• Si34 803 specifications 28
• Specifications 17 28
• Specifications 29
• Specifications si34 803 29
• Si34 803 specifications 30
• Specifications 19 30
• Specifications 31
• Specifications si34 803 31
• Si34 803 specifications 32
• Specifications 21 32
• Specifications 33
• Specifications si34 803 33
• Si34 803 specifications 34
• Specifications 23 34
• Specifications 35
• Specifications si34 803 35
• Si34 803 specifications 36
• Specifications 25 36
• Specifications 37
• Specifications si34 803 37
• Si34 803 specifications 38
• Specifications 27 38
• Specifications 39
• Specifications si34 803 39
• Si34 803 specifications 40
• Specifications 29 40
• Specifications 41
• Specifications si34 803 41
• Si34 803 specifications 42
• Specifications 31 42
• Specifications 43
• Specifications si34 803 43
• Cooling capacity 19 cwb 44
• Heating capacity 44
• Si34 803 specifications 44
• Specifications 33 44
• Cooling capacity 19 cwb 45
• Heating capacity 45
• Specifications 45
• Specifications si34 803 45
• Cooling capacity 19 cwb 46
• Heating capacity 46
• Si34 803 specifications 46
• Specifications 35 46
• Cooling capacity 19 cwb 47
• Heating capacity 47
• Specifications 47
• Specifications si34 803 47
• Cooling capacity 19 cwb 48
• Heating capacity 48
• Si34 803 specifications 48
• Specifications 37 48
• Cooling capacity 19 cwb 49
• Heating capacity 49
• Specifications 49
• Specifications si34 803 49
• Cooling capacity 19 cwb 50
• Heating capacity 50
• Si34 803 specifications 50
• Specifications 39 50
• Cooling capacity 19 cwb 51
• Heating capacity 51
• Specifications 51
• Specifications si34 803 51
• Cooling capacity 19 cwb 52
• Heating capacity 52
• Si34 803 specifications 52
• Specifications 41 52
• Cooling capacity 19 cwb 53
• Heating capacity 53
• Specifications 53
• Specifications si34 803 53
• Cooling capacity 19 cwb 54
• Heating capacity 54
• Si34 803 specifications 54
• Specifications 43 54
• Cooling capacity 19 cwb 55
• Heating capacity 55
• Specifications 55
• Specifications si34 803 55
• Cooling capacity 19 cwb 56
• Heating capacity 56
• Si34 803 specifications 56
• Specifications 45 56
• Specifications 57
• Specifications si34 803 57
• Si34 803 specifications 58
• Specifications 47 58
• Specifications 59
• Specifications si34 803 59
• Si34 803 specifications 60
• Specifications 49 60
• Specifications 61
• Specifications si34 803 61
• Si34 803 specifications 62
• Specifications 51 62
• Specifications 63
• Specifications si34 803 63
• Si34 803 specifications 64
• Specifications 53 64
• Ceiling mounted cassette round flow type 65
• Indoor units 65
• Bycp125k w1 bycp125k w1 bycp125k w1 bycp125k w1 66
• Ceiling mounted cassette round flow type 66
• Si34 803 specifications 66
• Specifications 55 66
• Bybc32g w1 bybc32g w1 bybc32g w1 bybc50g w1 67
• Ceiling mounted cassette type double flow 67
• Specifications 67
• Specifications si34 803 67
• Bybc50g w1 bybc63g w1 bybc125g w1 bybc125g w1 68
• Ceiling mounted cassette type double flow 68
• Si34 803 specifications 68
• Specifications 57 68
• Byk45fjw1 byk45fjw1 byk45fjw1 byk71fjw1 69
• Ceiling mounted cassette corner type 69
• Specifications 69
• Specifications si34 803 69
• Si34 803 specifications 70
• Slim ceiling mounted duct type ve with drain pump vet without drain pump 70
• Specifications 59 70
• Slim ceiling mounted duct type ve with drain pump vet without drain pump 71
• Specifications 71
• Specifications si34 803 71
• Bybs32djw1 bybs32djw1 bybs32djw1 72
• Ceiling mounted built in type 72
• Si34 803 specifications 72
• Specifications 61 72
• Bybs45djw1 bybs45djw1 bybs71djw1 73
• Ceiling mounted built in type 73
• Specifications 73
• Specifications si34 803 73
• Bybs125djw1 bybs125djw1 bybs125djw1 74
• Ceiling mounted built in type 74
• Si34 803 specifications 74
• Specifications 63 74
• Ceiling mounted duct type 75
• Specifications 75
• Specifications si34 803 75
• Ceiling mounted duct type 76
• Si34 803 specifications 76
• Specifications 65 76
• Ceiling mounted duct type 77
• Specifications 77
• Specifications si34 803 77
• Ceiling suspended type 78
• Si34 803 specifications 78
• Specifications 67 78
• Specifications 79
• Specifications si34 803 79
• Wall mounted type 79
• Si34 803 specifications 80
• Specifications 69 80
• Wall mounted type 80
• Floor standing type 81
• Specifications 81
• Specifications si34 803 81
• Floor standing type 82
• Si34 803 specifications 82
• Specifications 71 82
• Concealed floor standing type 83
• Specifications 83
• Specifications si34 803 83
• Concealed floor standing type 84
• Si34 803 specifications 84
• Specifications 73 84
• Bev units 85
• Ceiling suspended cassette type 85
• Connection unit 85
• Indoor unit 85
• Liquid pipes 85
• Specifications 85
• Specifications si34 803 85
• Suction gas pipes 85
• Outdoor air processing unit 86
• Si34 803 specifications 86
• Specifications 75 86
• Functional parts layout 7 88
• Part 3 refrigerant circuit 88
• Refrigerant circuit 8 88
• Refrigerant flow for each operation mode 2 88
• Refirgerant circuit 89
• Refrigerant circuit 89
• Refrigerant circuit si34 803 89
• Rxyq5p a 89
• Refirgerant circuit 79 90
• Rxyq5p a 90
• Si34 803 refrigerant circuit 90
• Refirgerant circuit 91
• Refrigerant circuit si34 803 91
• Rxyq8p a 91
• Refirgerant circuit 81 92
• Rxyq8p a 92
• Si34 803 refrigerant circuit 92
• Refirgerant circuit 93
• Refrigerant circuit si34 803 93
• Rxyq10p a 12p a 93
• Refirgerant circuit 83 94
• Rxyq10p a 12p a 94
• Si34 803 refrigerant circuit 94
• Refirgerant circuit 95
• Refrigerant circuit si34 803 95
• Rxyq14p a 16p a 18p a 95
• Refirgerant circuit 85 96
• Rxyq14p a 16p a 18p a 96
• Si34 803 refrigerant circuit 96
• Main control equipment 97
• Outdoor air processing unit fxmq125mfv1 250mfv1 97
• Refrigerant system 97
• Thermistor 97
• Front view 98
• Functional parts layout 98
• Refirgerant circuit 87 98
• Rxyq5p a 98
• Si34 803 functional parts layout 98
• Front view 99
• Functional parts layout si34 803 99
• Refirgerant circuit 99
• Rxyq8p a 99
• Accumulator 100
• Front view 100
• Heat exchanger 100
• Refirgerant circuit 89 100
• Rxyq10p a 100
• Si34 803 functional parts layout 100
• Accumulator 101
• Front view 101
• Functional parts layout si34 803 101
• Heat exchanger 101
• Refirgerant circuit 101
• Rxyq12p a 101
• Accumulator 102
• Front view 102
• Heat exchanger 102
• Refirgerant circuit 91 102
• Rxyq14p a 16p a 18p a 102
• Si34 803 functional parts layout 102
• Refirgerant circuit 103
• Refrigerant flow for each operation mode 103
• Refrigerant flow for each operation mode si34 803 103
• Rxyq5p a cooling operation 103
• Cooling oil return operation 104
• Refirgerant circuit 93 104
• Si34 803 refrigerant flow for each operation mode 104
• Heating oil return defrost operation 105
• Refirgerant circuit 105
• Refrigerant flow for each operation mode si34 803 105
• Heating operation 106
• Refirgerant circuit 95 106
• Si34 803 refrigerant flow for each operation mode 106
• Refirgerant circuit 107
• Refrigerant flow for each operation mode si34 803 107
• Rxyq8p a cooling operation 107
• Cooling oil return operation 108
• Refirgerant circuit 97 108
• Si34 803 refrigerant flow for each operation mode 108
• Heating oil return defrost operation 109
• Refirgerant circuit 109
• Refrigerant flow for each operation mode si34 803 109
• Heating operation 110
• Refirgerant circuit 99 110
• Si34 803 refrigerant flow for each operation mode 110
• Refirgerant circuit 111
• Refrigerant flow for each operation mode si34 803 111
• Rxyq10p a 12p a cooling operation 111
• Cooling oil return operation 112
• Refirgerant circuit 101 112
• Si34 803 refrigerant flow for each operation mode 112
• Heating oil return defrost operation 113
• Refirgerant circuit 113
• Refrigerant flow for each operation mode si34 803 113
• Heating operation 114
• Refirgerant circuit 103 114
• Si34 803 refrigerant flow for each operation mode 114
• Refirgerant circuit 115
• Refrigerant flow for each operation mode si34 803 115
• Rxyq14p a 16p a 18p a cooling operation 115
• Cooling oil return operation 116
• Refirgerant circuit 105 116
• Si34 803 refrigerant flow for each operation mode 116
• Heating oil return defrost operation 117
• Refirgerant circuit 117
• Refrigerant flow for each operation mode si34 803 117
• Heating operation 118
• Refirgerant circuit 107 118
• Si34 803 refrigerant flow for each operation mode 118
• Basic control 12 120
• Function general 10 120
• Other control 57 120
• Outline of control indoor unit 65 120
• Part 4 function 120
• Protection control 52 120
• Special control 43 120
• Function general 121
• Symbol 121
• Function 111 122
• In the event indoor unit stops or the thermostat turns off while in oil return operation or defrosting operation pump down residual operation is performed on completion of the oil return operation or defrosting operation 122
• Malfunction standby retry 122
• Operation mode 122
• Si34 803 function general 122
• 1 pi control evaporator outlet superheated degree sh constant 2 pi control condenser outlet subcooled degree sc constant 1 and 2 refer 6 electronic expansion valve control on page 171 123
• Basic control 123
• List of functions in normal operation 123
• Normal operation 123
• Carries out the compressor capacity pi control to maintain te at constant during cooling operation and tc at constant during heating operation to ensure stable unit performance 124
• Compressor pi control 124
• Cooling operation 124
• Heating operation 124
• Basic control si34 803 125
• Function 125
• Operating priority and rotation of compressors for multi standard connection system 125
• Function 115 126
• In the case of combination of 3 outdoor units the above diagram shows master unit slave unit 1 and slave unit 2 from left to right compressors may operate in any pattern other than those mentioned above according to the operating status 126
• Inv std1 std2 126
• No 1 no 4 no 7 126
• No 2 no 5 no 8 126
• No 3 no 6 no 9 126
• Rxyq46p a 48p a 10hp 1fan 12hp 2fan 126
• Si34 803 basic control 126
• Basic control si34 803 127
• Compressor step control multi outdoor unit connection is available on the standard connection system compressor operations vary with the following steps according to information in 2 compressor pi control furthermore the operating priority of compressors is subject to information in operating priority and rotation of compressors 127
• Function 127
• Hz stand alone installation 127
• Notes 1 inv inverter compressor std1 standard compressor 1 std2 standard compressor 2 2 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 127
• Rxyq10pay1 12pay1 127
• Rxyq14pay1 16pay1 127
• Rxyq18pay1 127
• Rxyq5pay1 127
• Rxyq8pay1 127
• Function 117 128
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 128
• Represents the range in which hz is not stepped up 128
• Rxyq20pay1 8 12hp 128
• Rxyq22pay1 10 12hp 128
• Si34 803 basic control 128
• Two unit multi system 128
• Basic control si34 803 129
• Function 129
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 129
• Represents the range in which hz is not stepped up 129
• Rxyq24pay1 8 16hp 129
• Rxyq26pay1 8 18hp 129
• Function 119 130
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 130
• Represents the range in which hz is not stepped up 130
• Rxyq 32pay1 16 16hp 130
• Rxyq28pay1 30pay1 10 12 18hp 130
• Si34 803 basic control 130
• Basic control si34 803 131
• Function 131
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 131
• Represents the range in which hz is not stepped up 131
• Rxyq 34pay1 16 18hp 131
• Rxyq36pay1 18 18hp 131
• Function 121 132
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 132
• Represents the range in which hz is not stepped up 132
• Rxyq 40pay1 8 16 16hp 132
• Rxyq38pay1 8 12 18hp 132
• Si34 803 basic control 132
• Three unit multi system 132
• Basic control si34 803 133
• Function 133
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 133
• Represents the range in which hz is not stepped up 133
• Rxyq 42pay1 8 16 18hp 133
• Rxyq44pay1 8 18 18hp 133
• Function 123 134
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 134
• Represents the range in which hz is not stepped up 134
• Rxyq46pay1 48pay1 10 12 18 18hp 134
• Rxyq50pay1 52pay1 14 16 18 18hp 134
• Si34 803 basic control 134
• Basic control si34 803 135
• Function 135
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 135
• Rxyq54pay1 18 18 18hp 135
• Function 125 136
• Hz stand alone installation 136
• Notes 1 inv inverter compressor std1 standard compressor 1 std2 standard compressor 2 2 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 136
• Rxyq10 12payl ptl 136
• Rxyq14 16payl ptl 136
• Rxyq18payl ptl 136
• Si34 803 basic control 136
• Basic control si34 803 137
• Function 137
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 137
• Represents the range in which hz is not stepped up rxyq20payl ptl 8 12hp 137
• Rxyq22payl ptl 10 12hp 137
• Two unit multi system 137
• Function 127 138
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 138
• Represents the range in which hz is not stepped up 138
• Rxyq24payl ptl 8 16hp 138
• Rxyq26payl ptl 8 18hp 138
• Si34 803 basic control 138
• Basic control si34 803 139
• Function 139
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 139
• Represents the range in which hz is not stepped up 139
• Rxyq28 30payl ptl 10 12 18hp 139
• Rxyq32payl ptl 16 16hp 139
• Function 129 140
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 140
• Represents the range in which hz is not stepped up 140
• Rxyq34payl ptl 16 18hp 140
• Rxyq36payl ptl 18 18hp 140
• Si34 803 basic control 140
• Basic control si34 803 141
• Function 141
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 141
• Represents the range in which hz is not stepped up 141
• Rxyq38payl ptl 8 12 18hp 141
• Rxyq40payl ptl 8 16 16hp 141
• Function 131 142
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 142
• Represents the range in which hz is not stepped up 142
• Rxyq42payl ptl 8 16 18hp 142
• Rxyq44payl ptl 8 18 18hp 142
• Si34 803 basic control 142
• Basic control si34 803 143
• Function 143
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 143
• Represents the range in which hz is not stepped up 143
• Rxyq46 48payl ptl 10 12 18 18hp 143
• Rxyq50 52payl ptl 14 16 18 18hp 143
• Function 133 144
• Notes 1 inv inverter compressor std standard compressor figures after on represent the number of std compressors in operation 2 master unit and slave unit in this section are the names for control and they will be transferred according to the priority of rotation system 3 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 144
• Rxyq54payl ptl 18 18 18hp 144
• Si34 803 basic control 144
• Hz 60hz high cop type 145
• Carries out the motorized 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 152
• Electronic expansion valve pi control 152
• Figures listed above are all those controlled while in standard mode which vary when the system is set to high static pressure or capacity precedence mode 152
• Main motorized valve ev1 control 152
• Makes pi control of the motorized valve y2e to keep the superheated degree of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger 152
• Step control of outdoor unit fans 152
• Subcooling motorized valve ev2 control 152
• The optimum initial value of the evaporator outlet superheated degree is 5 c but varies depending on the discharge pipe superheated degree of inverter compressor 152
• Used to control the revolutions of outdoor unit fans in the steps listed in table below according to condition changes 152
• Outdoor unit fan control in cooling operation 153
• While in cooling operation if the outdoor temperature is low this mode provides high pressure control using the outdoor unit fan to retain appropriate liquid pressure thus ensuring refrigerant circulation rate to be supplied to indoor units 153
• Special control 154
• Startup control 154
• Startup control in cooling operation 154
• Startup control in heating operation 154
• 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 154
• Large capacity start up control heating 155
• Start up std compressors at intervals of 15 seconds 155
• In order to prevent the compressor from running out of oil the oil return operation is conducted to recover oil flown out from the compressor to the system side 156
• In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the oil return operation non operating unit stops during oil return preparation operation actuators are based on rxyq14 18p a 156
• Oil return operation 156
• Oil return operation in cooling operation 156
• Start conditions referring to the set conditions for the following items start the oil return operation in cooling cumulative oil feed rate timer setting make this setting so as to start the oil return operation when the initial cumulative operating time reaches two hours after power supply is turned on and then every eight hours furthermore the cumulative oil feed rate is computed from tc te and compressor loads 156
• In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the oil return operation non operating unit stops during oil return preparation operation actuators are based on rxyq1 157
• Oil return operation in heating operation 157
• Defrosting operation 158
• In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the defrost operation non operating unit stops during defrost preparation operation actuators are based on rxyq14 18p a 158
• To defrost the outdoor unit heat exchanger while in evaporator the defrost operation is conducted to recover the heating capacity start conditions referring to the set conditions for the following items start the defrosting operation heat transfer coefficient of the outdoor unit heat exchanger heat exchange temperature tb timer set to two hours at minimum furthermore the heat transfer coefficient of the outdoor unit evaporator is computed from tc te and compressor loads 158
• Actuators are based on rxyq14 18p a 159
• If the liquid refrigerant stays in the evaporator at the startup of a compressor this liquid refrigerant enters the compressor thus resulting in diluted oil in the compressor and then degraded lubrication performance consequently in order to recover the refrigerant in the evaporator while the compressor stops the pump down residual operation is conducted 159
• Pump down residual operation 159
• Pump down residual operation in cooling operation 159
• Pump down residual operation in heating operation 159
• Actuators are based on rxyq14 18p a 160
• Crankcase heater control 160
• In order to prevent the refrigerant from melting in the compressor oil in the stopped mode this mode is used to control the crankcase heater 160
• Restart standby 160
• Standby 160
• Used to forcedly stop the compressor for a period of 3 minutes in order to prevent the frequent on off of the compressor and equalize the pressure within the refrigerant system 160
• Actuators are based on rxyq14 18p a 161
• In order to protect compressors if any of the following items has an abnormal value the system will make stop with thermostat off and the malfunction will be determined according to the number of retry times 161
• Stop due to malfunction 161
• Stopping operation 161
• This mode is used to define actuator operations when the system stops 161
• When system is in stop mode normal operation stop 161
• In heating operation the system operates with following mode 162
• Stopping operation of slave units during master unit is in operation with multi outdoor unit system 162
• While the master unit is in operation this mode is used to set the refrigerant flow rate to a required level using a slave unit in the stopped mode in cooling operation same as that of normal operation stop 162
• Function 163
• High pressure protection control 163
• In cooling operation in the case of multi outdoor unit system each outdoor unit performs this control individually in the following sequence 163
• In heating operation in the case of multi outdoor unit system the entire system performs this control in the following sequence 163
• Protection control 163
• Protection control si34 803 163
• 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 163
• Hot gas svp off 164
• Hot gas svp on 164
• In cooling operation in the case of multi outdoor unit system the entire system performs this control in the following sequence 164
• In heating operation in the case of multi outdoor unit system each outdoor unit performs this control individually in the following sequence 164
• Low pressure protection control 164
• Master unit 52 hz off off 164
• This low pressure protection control is used to protect compressors against the transient decrease of low pressure 164
• After 10 min 165
• Applicable std compressor stops 165
• Discharge pipe protection control 165
• Discharge pipe temp 165
• Each compressor performs the discharge pipe temperature protection control individually in the following sequence 165
• Htds value of std compressor discharge pipe temperature tds compensated with outdoor air temperature tp value of compressor port temperature calculated by t 165
• Inv compressor 165
• Protection control not limited 165
• Std compressor 165
• Te and suction superheated degree 165
• This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature 165
• A y1 yl 26 a tl 166
• Fin temp standby 166
• In the case of multi outdoor unit system each inv compressor performs these controls in the following sequence 166
• Inverter current 14 a y1 yl 26 a tl inv upper limit frequency max 166
• 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 166
• Inverter fin temp 81 c continues for 3 min or more 166
• Inverter fin temperature control 166
• Inverter overcurrent protection control 166
• Inverter protection control 166
• Nomal operation 166
• Tfin 81 c inv upper limit rps max 166
• Under fin temperature protection control 166
• When occurring 4 times within 60 min the malfunction code l4 is output 166
• Y1 yl 26 a tl 166
• For transitional rise in discharge pipe temperature have the liquid refrigerant flow into the suction side to reduce the discharge pipe temperature for the compressor protection 167
• Injection control only for rxyq5p a 167
• Std compressor overload protection 167
• This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of std compressor such as locking 167
• After oil return operation after defrosting operation at the beginning of the starting control when any of outdoor unit stops for a period of 20 minutes or more in heating there are outdoor units that stop operation in cooling low pressure of all outdoor units in operation is less than 0 5 mpa in cooling 168
• Details of outdoor unit rotation in the case of multi outdoor unit system each outdoor unit is given an operating priority for the control outdoor unit rotation makes it possible to change the operating priority of outdoor units thus the system becomes free of compressors that stop over an extended period of time at the time of partial loading preventing unbalanced oil level 168
• Example the following diagram shows outdoor unit rotation in combination of 3 outdoor units in heating in cooling 168
• In the case of multi outdoor unit system this outdoor unit rotation is used to prevent the compressor from burning out due to unbalanced oil level between outdoor units 168
• Other control 168
• Outdoor unit rotation 168
• Timing of outdoor unit rotation 168
• Caution in order to disable the compressor operation due to a failure or else be sure to do so in emergency operation mode never attempt to disconnect power supply wires from magnetic contactors or else doing so will operate compressors in combination that disables oil equalization between the compressors thus resulting in malfunctions of other normal compressors 169
• Emergency operation 169
• Restrictions for emergency operation 169
• In the case of 1 outdoor unit system rxyq8p a to 18p a 170
• In the case of multi outdoor unit system rxyq20p a to 54p a 170
• Note in order to forcedly clear the automatic backup operation reset the power supply with the outdoor unit in the stopped state 171
• 777777 173
• 777777 77 173
• 7777777 7777 173
• Demand operation 175
• Heating operation is prohibited above 24 c ambient temperature 175
• Heating operation prohibition 175
• In order to save the power consumption the capacity of outdoor unit is saved with control forcibly by using demand 1 setting or demand 2 setting to operate the unit with this mode additional setting of continuous demand setting or external input by external control adapter is required 175
• Drain pump control 176
• Outline of control indoor unit 176
• Louver control for preventing ceiling dirt 178
• Cooling 179
• Thermostat sensor in remote controller 179
• Heating 180
• Assuming that the suction air temperature at the time of starting the dry operation is tro and the suction air temperature in operation is tr 181
• Function 181
• Furthermore while in dry operation mode fans operate at l flow rate stops for a period of six minutes while the thermostat is off and then return to operation at l flow rate this control is used to prevent a rise in indoor humidity while in thermostat off mode 181
• Outline of control indoor unit si34 803 181
• Thermostat control in dry operation 181
• Thermostat control while in normal operation 181
• Vrv multi systems are set at factory to thermostat control mode using the remote controller while in normal thermostat differential control mode i e factory set mode the thermostat turns off when the system reaches a temperature of 1 c from the set temperature while in cooling operation or of 1 c from that while in heating operation 181
• While in a single remote controller group control the body thermostat is only used fro this control furthermore while in heating operation cassette mounted indoor units conduct the thermostat control by a value compensated by 2 c for the value detected with the body thermostat through field settings the thermostat differential setting can be changed from 1 c to 0 c for details on the changing procedure refer to information on page onward 181
• While in dry operation the thermostat control is conducted according to a suction temperature at the time of starting the dry operation 181
• Defrost ending or oil return ending or thermostat on 182
• Electronic expansion valve control 182
• Fan louver 182
• H l remote controller setting 182
• Hot start control hot start in progress 182
• Hot start control in heating operation only 182
• Hot start ending conditions 182
• Lapse of 3 minutes 182
• Normal control 182
• Po horizontal 182
• Remote controller setting 182
• Freeze prevention 183
• Freeze prevention by off cycle indoor unit 183
• Heater control 183
• 1 l or ll only on fxfq models 184
• 2 the heater control on off is conducted by converting the heater temperature into the condensing pressure equivalent saturated temperature tc according to the temperature detection through the high pressure sensor sinph of the outdoor unit 184
• Fan residual operation while the heater turns off in order to prevent the activation of the thermal protector the fan conducts residual operation for a given period of time after the heater turns off this operation is conducted regardless of with or without heater equipped 184
• List of swing flap operations 184
• Residual operation time 100 seconds on ceiling suspended type or 60 seconds on other types 184
• Swing flaps operate as shown in table below 184
• Control of outdoor air processing unit unique control for outdoor air processing unit 185
• Details 185
• Objective 185
• Outdoor air processing unit 185
• Selection of operation mode by suction air thermostat 185
• To select cooling heating or fan operation mode according to the suction air outdoor air temperature 185
• Discharge air 186
• Discharge air temperature control 186
• Ev ev ev ev ev ev 186
• Is ev possible to close 186
• Is ev possible to open 186
• Refrigerant 186
• Sh t3 t2 186
• Temp setting 186
• Discharge air 187
• Ev ev ev ev ev ev 187
• Is ev possible to close 187
• Is ev possible to open 187
• Refrigerant 187
• Sc tc t2 187
• Temp setting 187
• Yes yes 187
• Details 188
• Low outdoor air temperature protection control 188
• Objective 188
• Outdoor unit pc board layout 96 3 field setting 97 190
• Part 5 test operation 190
• Test operation 80 190
• Installation process 191
• Test operation 191
• Check work prior to turn power supply on 192
• Procedure and outline 192
• Be sure to turn the power on 6 hours before starting operation to protect compressors to power on clankcase heater 193
• Before starting the normal operation after the completion of check operations make sure indoor and outdoor units normally operate 193
• Check for normal operation 193
• Check the led display of the outdoor unit pc board 193
• Check to be sure the transmission is normal the transmission is normal if the leds display conditions as shown in table below 193
• Conduct check operations 193
• Make field settings if needed for the setting procedure refer to information in 3 field setting from outdoor unit on page 214 onward for the outdoor multi system make field settings with the master unit field settings made with the slave unit will be all invalid 193
• Make field settings with outdoor unit pc board 193
• Test operation 193
• Test operation si34 803 193
• The check operations shown below will be automatically initiated check for erroneous wirings check for failure to open stop valves check for excessive refrigerant refilling automatic judgment of piping length 193
• The master unit is the outdoor unit to which the transmission wiring for the indoor units is conncted the other outdoor units are slave units 193
• Turn outdoor unit and indoor unit power on 193
• Turn power on 193
• Air tight test and vacuum drying 194
• Preparations 194
• Additional refrigerant charge and check operation 195
• Air tight test and vacuum drying method 195
• Before working 195
• Note total amount of refrigerant should be 100 kg or less 195
• Note do not open the shutoff valve until 1 check work prior to turn power supply on in page 181 are completed if the shutoff valve is left open without turning on the power it may cause refrigerant to buildup in the compressor leading insulation degradation be sure to use the correct tools the shutoff valve is not a back seat type if forced it to open it might break the valve body when using a service port use the charge hose after tightening the cap make sure no refrigerant gas is leaking 196
• Shutoff valve operation procedure 196
• When operating the shutoff valve follow the procedure instructed below 196
• 3 3 3 3 3 197
• 3 3 4 3 4 197
• 3 4 3 3 3 197
• 4 3 3 3 3 197
• 5 3 5 5 3 197
• How to check how many units are connected 197
• It is possible to find out how many indoor or outdoor unit in the system are turned on by operating the push button on the pc board a1p of outdoor unit in case of multi system master unit follow the procedure below to check how many indoor or outdoor units are turned on 197
• Note press the mode button bs1 if you get confused while operating this returns to setting mode 1 default 197
• Procedure of adding refrigerant charging and check operation 198
• Fig 31 199
• Fig 32 199
• Fig 33 199
• Note the refrigerant will be charged about 22kg in one hour at outdoor temp 30 c db 6kg at 0 c db if you need to speed up in case of multi system connect the refrigerant cylinders to each outdoor unit as shown in the figure 33 199
• Open the valve c see the figure 31 the valve a b and the liquid and gas side shutout valve must be left closed and charge the refrigerant of the additional charging amount from the liquid side shutout valve service port if the additional charging amount was charged fully close the valve c and go to step 5 if the additional charging amount was not charged fully go to step 4 199
• Perform the refrigerant charging operation following refrigerant charging operation procedure as shown in page 189 and charge the remaining refrigerant of the additional charging amount for performing the refrigerant charging operation the push button on the pc board a1p of outdoor unit incase of multi system master unit are use see the figure 32 in addition the refrigerant are charged from the refrigerant charge port via the valve a see the figure 33 for operating the push button and opening and closing the valve follow the work procedure 199
• Test operation 199
• Test operation si34 803 199
• 1 open the liquid and gas side shutoff valves the valve a c must be closed the valve a c means the valves in the figure 33 display of normal system 200
• 2 if necessary set the field setting by using the dip switch on the outdoor unit pc board a1p for how to set see 1 onsite settings with the power off 3 close the el compo box lid and all front panel except on the side of the el compo box 1 and turn the power to the outdoor unit and all connected indoor units 2 after h2p stop blinking about 12 minutes after turning on the power check led displays as shown in the table display of normal system and the system is normal state if h2p is blinking check the malfunction code in the remote controller and correct the malfunction in accordance with remote controller display malfunction code in page 191 1 lead the refrigerant charge hose etc from the pipe intake all front panels must be closed at the procedure 9 2 if you perform the refrigerant charging operation within the refrigerant system that have the power off unit the operation cannot finish properly for confirming the number of the outdoor and indoor units with the power on see how to chec 200
• Refrigerant charging operation procedure 200
• 1 make the onsite setting as needed using the dip switches on the outdoor unit pc board a1p with the power off see 1 onsite settings with the power off 2 close the el compo box lid and all front panels except as the side of the el compo box and turn on the power to the outdoor unit and all connected indoor units be sure to turn the power on at least 6 hours before operation in order to have power running to the crank case heater 3 check the led display on the outdoor unit pc board a1p is as shown in the table below and transmission is normal 201
• 4 make the onsite settings as needed using the push button bs1 bs5 on the outdoor unit pc board a1p with the power on see 1 onsite settings with the power on 5 perform the check operation following the check operation method of the service precautions label on the el compo box lid the system operation for about 40 minutes and automatically stops the check operation if the malfunction code is not displayed in the remote controller after the system stop check operation is completed normal operation will be possible after 5 minutes if the malfunction code is displayed in the remote controller correct the malfunction following remote controller displays malfunction code and perform the check operation again 201
• Check operation procedure 201
• How to distinguish the master unit sub unit 1 and sub unit 2 in the multi system 201
• Note for check operation the following work will be performed check of shutoff valve opening check of miswiring judgment of piping length check of refrigerant overcharge it takes about 40 minutes to complete the check operation 201
• If any malfunction codes other than the above are displayed check the service manual for how to respond 202
• Remote controller displays malfunction code 202
• Onsite settings 203
• Onsite settings with the power off 203
• Onsite settings with the power on 203
• Before test run 204
• Test run 204
• Checks after test run 205
• 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 206
• Caution when the 400 volt power supply is applyed to n phase by mistake replace inverter pc board a2p and control transformer t1r t2r in switch box together 206
• Operation when power is turned on 206
• Tap the reset button on the outdoor unit pc board operation becomes possible for about 2 minutes if you do not push the reset button the unit cannot be run for up to 10 minutes to automatically set master power status 206
• The unit cannot be run for up to 12 minutes to automatically set the master power and address indoor outdoor address etc status 206
• When an indoor unit or outdoor unit has been added or indoor or outdoor unit pc board has been changed 206
• When turning on power first time 206
• When turning on power the second time and subsequent 206
• 1 microcomputer normal monitor this monitor blinks while in normal operation and turns on or off when a malfunction occurs 207
• 2 set mode display led leds display mode according to the setting 207
• 3 mode setting switch used to change mode 207
• 4 local setting switch used to make field settings 207
• Outdoor unit pc board 207
• Outdoor unit pc board layout 207
• Field set mode 208
• Field setting 208
• Field setting from remote controller 208
• First code no 208
• Mode no 208
• Second code no 208
• Unit no 208
• Wireless remote controller indoor unit 209
• Simplified remote controller 210
• Field setting si34 803 211
• Notes 1 settings are made simultaneously for the entire group however if you select the mode no inside parentheses you can also set by each individual unit setting changes however cannot be checked except in the individual mode for those in parentheses 2 the mode numbers inside parentheses cannot be used by wireless remote controllers so they cannot be set individually setting changes also cannot be checked 3 marked are factory set 4 do not make settings other than those described above nothing is displayed for functions the indoor unit is not equipped with 5 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 6 if the setting mode to equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit 7 the fxmq50 63 80 100 125pve cannot be set to 30pa the fxmq40pve cannot be set to 180 or 200pa 211
• Setting contents and code no vrv indoor unit 211
• Test operation 211
• 1 static pressure selection 2 refer to 3 outdoor air processing unit field setting remote controller on p 09 212
• Applicable range of field setting 212
• Si34 803 field setting 212
• Test operation 201 212
• 1 filter sign setting 213
• 2 ultra long life filter sign setting 213
• 3 selection of thermistor 213
• 4 filter cleaning displayed or not displayed 213
• Detailed explanation of setting modes 213
• If switching the filter sign on time set as given in the table below set time 213
• Select the thermistor to control room temperature 213
• Setting table 213
• The factory setting for the second code no is 01 and room temperature is controlled by the indoor unit suction air thermistor and remote controller thermistor when the second code no is set to 02 room temperature is controlled by the suction air thermistor when the second code no is set to 03 room temperature is controlled by the remote controller thermistor 213
• When a ultra long life filter is installed the filter sign timer setting must be changed 213
• Whether or not to display filter cleaning after operation of certain duration can be selected 213
• 5 airflow adjustment auto 214
• 6 optional output switching 214
• 7 external on off input 214
• External static pressure settings make settings in either method a or method b as explained below a use the airflow auto adjustment function to make settings airflow auto adjustment the volume of blow off air is automatically adjusted to the rated quantity b select external static pressure with remote controller check that 01 off is set for the second code no in mode no 21 for airflow adjustment on an indoor unit basis in table 4 the second code no is set to 01 off at factory set change the second code no as shown in table according to the external static pressure of the duct to be connected 214
• Setting table 214
• This input is used for on off operation and protection device input from the outside the input is performed from the t1 t1 terminal of the operation terminal block x1a in the electric component box 214
• Using this setting operation output signal and abnormal output signal can be provided output signal is output between terminals k1 and k2 of customized wiring adapter an optional accessory 214
• 10 setting of operation mode to auto 215
• 11 auto restart after power failure reset 215
• 12 air flow when cooling thermostat is off 215
• 8 thermostat switching 215
• 9 air flow setting when heating thermostat is off 215
• Caution 1 the air conditioner starts operation suddenly after power failure reset or the main power supply turned on again consequently the user might be surprised with question for the reason why 2 in the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates 215
• Differential value during thermostat on off control can be changed for details refer to 6 thermostat control while in normal operation on page 170 215
• For the above reasons when the unit is set enabling to utilize auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation 215
• For the air conditioners with no setting for the function same as factory setting the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off however for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure 215
• The automatic operation mode setting is made by the use of the operation mode selector button 215
• This is used to set air flow to ll air flow when cooling thermostat is off 215
• This setting is used to set air flow when heating thermostat is off when thermostat off air flow volume up mode is used careful consideration is required before deciding installation location during heating operation this setting takes precedence over 7 fan stop when thermostat is off 215
• This setting makes it possible to change differential values for mode selection while in automatic operation mode 215
• 1 mode no setting is done in a batch for the group to make or confirm settings for an individual unit set the internal mode number in parentheses 2 the figure of the ceiling height is for the all round outlet for the settings for four direction part of corner closed off three direction and two direction outlets see the installation manual and technical guide supplied with the separately sold closure material kit 216
• 13 setting of normal air flow 216
• In the case of fxfq100 125 216
• In the case of fxfq100 125 all round outlet 216
• In the case of fxfq25 80 216
• In the case of fxfq25 80 all round outlet 216
• In the case of fxhq 216
• Make the following setting according to the ceiling height the setting position no is set to 01 at the factory in the case of fxaq 216
• Way 3 way 2 way outlets 216
• 14 air flow direction setting 217
• 15 operation of downward flow flap yes no 217
• 16 setting of air flow direction adjustment range 217
• 17 setting of the static pressure selection 217
• In the case of fxdq20 32pb fxdq40 63nb 217
• In the case of fxuq71 125 217
• Make the following air flow direction setting according to the respective purpose 217
• Only the model fxkq has the function when only the front flow is used sets yes no of the swing flap operation of down flow 217
• 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 01 217
• Setting table 217
• Some indoor unit models are not equipped with draft prevention upward function 217
• 18 external static pressure settings for fxmq p model 218
• 19 humidification when heating thermostat is off 218
• 20 setting of direct duct connection 218
• 21 interlocked operation between humidifier and drain pump 218
• Setting to humidification setting turns on the humidifier if suction temperature is 20ºc or above and turns off the humidifier if suction temperature is 18ºc or below when the heating thermostat is off 218
• The second code no is set to 07 an external static pressure of 100 pa at factory set 1 the fxmq50 63 80 100 125pve cannot be set to 30 pa 2 the fxmq40pve cannot be set to 180 or 200 pa 218
• This is used to interlock the humidifier with the drain pump when water is drained out of the unit this setting is unnecessary 218
• This is used when fresh air intake kit equipped with fan is connected the indoor fan carries out residual operation for one minute after the thermostat is stopped for the purpose of preventing dust on the air filter from falling off 218
• 22 individual setting of ventilation 219
• This is set to perform individual operation of heat reclaim ventilation using the remote controller central unit when heat reclaim ventilation is built in switch only when heat reclaim ventilation is built in 219
• Note bold face in indicates the default setting 220
• Outdoor air processing unit field setting remote controller 220
• Centralized control group no setting 221
• Brc7c type brc7e type brc4c type 222
• Caution when turning the power supply on the unit may often not accept any operation while 88 is displaying after all indications were displayed once for about 1 minute on the liquid crystal display this is not an operative fault 222
• Enter the selected group numbers by pushing button 5 push button and return to the normal mode 222
• Group no setting by wireless remote controller for centralized control 1 when in the normal mode push button for 4 seconds or more and operation then enters the field set mode 2 set mode no 00 with button 3 set the group no for each group with button advance backward 222
• Group no setting example 222
• Si34 803 field setting 222
• Test operation 211 222
• Contents of control modes 223
• Setting of operation control mode from remote controller local setting 223
• Do not select timer operation possible by remote controller if not using a remote controller operation by timer is impossible in this case 1 factory setting 224
• How to select operation mode 224
• Whether operation by remote controller will be possible or not for turning on off controlling temperature or setting operation mode is selected and decided by the operation mode given on the right edge of the table below 224
• Field setting from outdoor unit 225
• List of field setting items this following section indicates the list of field setting items for the lists of dip switch contents setting mode 1 and setting mode 2 refer to information in tables shown on the following page onward for setting items of 1 refer to detailed information provided on page 226 onward 225
• For setting items of 1 refer to detailed information provided on page 226 onward 226
• Caution 227
• Dip switch detail 227
• Dip switch setting after changing the main pc board a1p to spare parts pc board after the replacement by the spare pc board be sure to make settings shown below when you change the main pc board a1p to spare parts pc board please carry out the following setting 227
• If the ds1 1 1 4 ds2 2 2 4 setting has not been carried out error code ua are displayed and unit can not be operated 227
• Initial conditions of dip switches 227
• Make the following settings according to models of outdoor units all models are set to off at factory 227
• Refer ds1 1 4 ds2 1 4 setting detail on next page 227
• Setting by dip switches using dip switches on the pc board enables field setting shown below however make no changes of factory settings except for ds1 1 227
• Detail of ds1 1 4 ds2 1 4 setting for overseas general 228
• 7 8 7 7 7 7 230
• A setting mode 1 230
• Procedure for changing cool heat selection setting 230
• Si34 803 field setting 230
• Test operation 219 230
• 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 230
• B setting mode 2 231
• 1 number of connected indoor units used to make setting of the number of indoor units connected to an outdoor unit 2 number of connected bs units used to make setting of the number of bs units connected to an outdoor unit 3 number of outdoor units used to make setting of the number of outdoor units connected to diii net that is one of the communication lines 4 number of bs units used to make setting of the number of bs units connected to diii net that is one of the communication lines 5 number of terminal units used to make setting of the number of indoor units connected to diii net that is one of the communication lines only available for vrv indoor units 235
• 7 7 7 7 7 235
• 7 7 7 7 8 235
• 7 7 7 8 7 235
• 7 7 7 8 8 235
• 7 7 8 7 7 235
• 7 7 8 7 8 235
• 7 7 8 8 7 235
• 7 7 8 8 8 235
• 7 8 7 7 7 235
• 7 8 7 7 8 235
• 7 8 7 8 7 235
• 7 8 7 8 8 235
• 7 8 8 7 7 235
• 7 8 8 7 8 235
• 7 8 8 8 7 235
• 7 8 8 8 8 235
• 8 7 7 7 7 235
• 8 7 8 7 7 235
• 8 7 8 7 8 235
• 8 7 8 8 7 235
• 8 8 7 7 8 235
• C monitor mode 235
• Field setting si34 803 235
• Test operation 235
• The numbers in the no column represent the number of times to press the set bs2 button 235
• 16 128 32 no 2 236
• 4 1 32 8 2 236
• 7 7 7 7 7 236
• 7 7 7 7 8 236
• 7 7 7 7 9 236
• 7 7 7 8 7 236
• 7 7 7 9 7 236
• 7 7 8 7 7 236
• 7 7 9 7 7 236
• 7 8 7 7 7 236
• Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follows 236
• In the address is 010110 binary number which translates to 16 4 2 22 base 10 number in other words the address is 22 236
• No 3 8 2 236
• See the preceding page for a list of data etc for no 0 25 236
• Setting item 0 display contents of number of units for various settings 236
• The no 1 cool heat unified address is expressed as a binary number consisting of the lower 6 digits 0 63 236
• The number of terminal blocks for no 12 and 13 is expressed as an 8 digit binary number which is the combination of four upper and four lower digits for no 12 and 13 respectively 0 128 in the address for no 12 is 0101 the address for no 13 is 0110 and the combination of the two is 01010110 binary number which translates to 64 16 4 2 86 base 10 number in other words the number of terminal block is 86 236
• Cool heat mode switching 237
• For the details refer to the installation manual supplied together with the indoor unit 237
• In the case of wired remote controllers 237
• In the case of wireless remote controllers 237
• 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 set the master unit indoor unit having the right to select the cooling heating operation mode 237
• Set cool heat separately for each outdoor unit system by indoor unit remote controller 237
• There are the following 4 cool heat switching modes set cool heat separately for each outdoor unit system by indoor unit remote controller set cool heat separately for each outdoor unit system by cool heat selector set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller 237
• Set cool heat separately for each outdoor unit system by cool heat selector 238
• Multi outdoor units connection 239
• Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller 239
• Multi outdoor units connection 240
• Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat selector 240
• Supplementation on 241
• Setting of low noise operation 242
• Setting of low noise operation and demand operation 242
• Image of operation in the case of a 243
• Image of operation in the case of a and b 243
• Image of operation in the case of b 243
• A when the demand operation is carried out by external instructions with the use of the external control adapter for outdoor unit 1 while in setting mode 2 set the setting condition for set item no 12 setting of external low noise demand operation to yes 2 if necessary 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 244
• B 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 244
• 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 244
• Setting of demand operation 244
• Field setting si34 803 245
• Image of operation in the case of a 245
• Image of operation in the case of a and b 245
• Image of operation in the case of b 245
• Test operation 245
• Detailed setting procedure of low noise operation and demand control 246
• Setting of refrigerant recovery mode 248
• Check operation detail 249
• Check operation function 249
• Setting of vacuuming mode 249
• Part 6 troubleshooting 250
• Symptom based troubleshooting 42 2 troubleshooting by remote controller 45 250
• Troubleshooting by indication on the remote controller 60 250
• Troubleshooting op central remote controller 45 251
• Troubleshooting op unified on off controller 53 252
• Symptom based troubleshooting 253
• Inspection mode 256
• Local setting mode service mode 256
• Normal mode 256
• Test operation mode 256
• The following modes can be selected by using the inspection test operation button on the remote control 256
• The inspection test button 256
• Troubleshooting by remote controller 256
• Explanation 257
• Self diagnosis by wired remote controller 257
• In the case of brc7c type brc7e type brc4c type 258
• Self diagnosis by wireless remote controller 258
• The lower digit of the code changes as shown below when the up and down buttons are pressed 259
• Operation of the remote controller s inspection test operation button 261
• Troubleshooting 261
• Troubleshooting by remote controller si34 803 261
• How to enter the service mode 262
• Remote controller service mode 262
• Service mode operation method 262
• Remote controller self diagnosis function 264
• The system operates for malfunction codes indicated in black squares however be sure to check and repair 266
• Detail description on next page 267
• Malfunction code indication by outdoor unit pc board 267
• Push the mode bs1 button and returns to setting mode 1 267
• Push the return bs3 button and switches to the initial status of monitor mode 267
• Push the return bs3 button once to display first digit of malfunction code 267
• Push the set bs2 button and set the led display to a setting item 267
• Push the set bs2 button once to display malfunction location 267
• Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 267
• Push the set bs2 button once to display second digit of malfunction code 267
• Refer to p 24 for monitor mode 267
• To enter the monitor mode push the mode bs1 button when in setting mode 1 267
• Troubleshooting 267
• Troubleshooting by remote controller si34 803 267
• Si34 803 troubleshooting by remote controller 268
• Troubleshooting 257 268
• Detail description on next page 269
• Push the mode bs1 button and returns to setting mode 1 269
• Push the return bs3 button and switches to the initial status of monitor mode 269
• Push the return bs3 button once to display first digit of malfunction code 269
• Push the set bs2 button and set the led display to a setting item 269
• Push the set bs2 button once to display malfunction location 269
• Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 269
• Push the set bs2 button once to display second digit of malfunction code 269
• Refer to p 24 for monitor mode 269
• To enter the monitor mode push the mode bs1 button when in setting mode 1 269
• Troubleshooting 269
• Troubleshooting by remote controller si34 803 269
• Si34 803 troubleshooting by remote controller 270
• Troubleshooting 259 270
• Applicable models 271
• Indoor unit error of external protection device 271
• Malfunction decision conditions 271
• Method of malfunction detection 271
• Remote controller display 271
• Supposed causes 271
• Troubleshooting 271
• Troubleshooting by indication on the remote controller 271
• Indoor unit pc board defect 272
• Applicable models 273
• Indoor unit malfunction of drain level control system s1l 273
• Malfunction decision conditions 273
• Method of malfunction detection 273
• Remote controller display 273
• Supposed causes 273
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 274
• Si34 803 troubleshooting by indication on the remote controller 274
• Troubleshooting 274
• Troubleshooting 263 274
• All indoor units except fxmq p 275
• Applicable models 275
• Detection by failure of signal for detecting number of turns to come from the fan motor 275
• Fan motor lock disconnected or faulty wiring between fan motor and pc board 275
• Indoor unit fan motor m1f lock overload 275
• Malfunction decision conditions 275
• Method of malfunction detection 275
• Remote controller display 275
• Supposed causes 275
• Troubleshooting 275
• When number of turns can t be detected even when output voltage to the fan is maximum 275
• Applicable models 276
• Malfunction decision conditions 276
• Method of malfunction detection 276
• Remote controller display 276
• Supposed causes 276
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 277
• Troubleshooting 277
• Troubleshooting by indication on the remote controller si34 803 277
• Si34 803 troubleshooting by indication on the remote controller 278
• Troubleshooting 267 278
• Indoor unit malfunction of swing flap motor m1s 279
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 280
• Si34 803 troubleshooting by indication on the remote controller 280
• Troubleshooting 280
• Troubleshooting 269 280
• Abnormal power supply voltage 281
• Applicable models 281
• Detect malfunction checking the input voltage of fan motor 281
• Fxmq40 125p 281
• Malfunction decision conditions 281
• Method of malfunction detection 281
• Remote controller display 281
• Supposed causes 281
• The possible causes are power supply voltage malfunction connection defect on signal line wiring defect instantaneous blackout others 281
• Troubleshooting 281
• When the input voltage of fan motor is 150v and below or 386v and above 281
• All indoor unit models 282
• Applicable models 282
• Indoor unit malfunction of moving part of electronic expansion valve y1e 282
• Malfunction decision conditions 282
• Malfunction of moving part of electronic expansion valve defect of indoor unit pc board defect of connecting cable 282
• Method of malfunction detection 282
• Remote controller display 282
• Supposed causes 282
• Troubleshooting 282
• Use a microcomputer to check the electronic expansion valve for coil conditions 282
• When the pin input of the electronic expansion valve is not normal while in the initialization of the microcomputer 282
• 1 coil check method for the moving part of the electronic expansion valve disconnect the electronic expansion valve from the pc board and check the continuity between the connector pins 283
• Continuity no continuity 283
• Normal 283
• Applicable models 284
• Fxcq fxfq fxsq fxkq fxmq fxdq fxmq mf fxuq 284
• Humidifier unit optional accessory leaking defect of drain pipe upward slope etc defect of indoor unit pc board 284
• Indoor unit drain level above limit 284
• Malfunction decision conditions 284
• Method of malfunction detection 284
• Remote controller display 284
• Supposed causes 284
• Troubleshooting 284
• Water leakage is detected based on float switch on off operation while the compressor is in non operation 284
• When the float switch changes from on to off while the compressor is in non operation 284
• Indoor unit malfunction of capacity determination device 285
• Indoor unit failure of transmission between indoor unit pc board and fan pc board 286
• 1 pull out and insert the connecter once and check it is absolutely connected 2 method to check transmission part of indoor pc board turn off the power and remove the connecter x70a of indoor pc board a1p short circuit x70a after turning on the power check below numbers under local setting remote control confirmation setting position no at the condition of setting switch no 21 on mode no 41 287
• After confirmation turn off the power take off the short circuit and connect x70a back to original condition 287
• Determination 01 normal other than 01 transmission defect on indoor pc board 287
• Troubleshooting 287
• Troubleshooting by indication on the remote controller si34 803 287
• All indoor unit models 288
• Applicable models 288
• Defect of thermistor r2t for liquid pipe defect of indoor unit pc board 288
• Indoor unit malfunction of thermistor r2t for heat exchanger 288
• Malfunction decision conditions 288
• Malfunction detection is carried out by temperature detected by heat exchanger thermistor 288
• Method of malfunction detection 288
• Refer to thermistor resistance temperature characteristics table on p 27 288
• Remote controller display 288
• Supposed causes 288
• Troubleshooting 288
• When the heat exchanger thermistor becomes disconnected or shorted while the unit is running 288
• All indoor unit models 289
• Applicable models 289
• Defect of indoor unit thermistor r3t for gas pipe defect of indoor unit pc board 289
• Indoor unit malfunction of thermistor r3t for gas pipes 289
• Malfunction decision conditions 289
• Malfunction detection is carried out by temperature detected by gas pipe thermistor 289
• Method of malfunction detection 289
• Refer to thermistor resistance temperature characteristics table on p 27 289
• Remote controller display 289
• Supposed causes 289
• Troubleshooting 289
• When the gas pipe thermistor becomes disconnected or shorted while the unit is running 289
• Applicable models 290
• Conduct open line detection with pc board for fan a2p using indoor pc board a1p 290
• Fxmq40 125p 290
• Indoor unit failure of combination between indoor unit pc board and fan pc board 290
• Malfunction decision conditions 290
• Method of malfunction detection 290
• Remote controller display 290
• Supposed causes 290
• The possible causes are malfunction of pc board for fan a2p connection defect of capacity setting adapter setting mistake on site 290
• Troubleshooting 290
• When the communication data of pc board for fan a2p is determined as incorrect 290
• Aii indoor unit models 291
• Applicable models 291
• Defect of indoor unit thermistor r1t for air inlet defect of indoor unit pc board 291
• Indoor unit malfunction of thermistor r1t for suction air 291
• Malfunction decision conditions 291
• Malfunction detection is carried out by temperature detected by suction air temperature thermistor 291
• Method of malfunction detection 291
• Refer to thermistor resistance temperature characteristics table on p 27 291
• Remote controller display 291
• Supposed causes 291
• Troubleshooting 291
• When the suction air temperature thermistor becomes disconnected or shorted while the unit is running 291
• Applicable models 292
• Even if a malfunction occurs operation still continues malfunction is detected according to the moisture output voltage detected by the moisture sensor 292
• Faulty sensor disconnection 292
• Indoor unit malfunction of humidity sensor system 292
• Malfunction decision conditions 292
• Method of malfunction detection 292
• Remote controller display 292
• Supposed causes 292
• Troubleshooting 292
• When the moisture sensor is disconnected or short circuited 292
• Indoor unit malfunction of thermostat sensor in remote controller 293
• Outdoor unit pc board defect 294
• Applicable models 295
• Malfunction decision conditions 295
• Method of malfunction detection 295
• Outdoor unit actuation of high pressure switch 295
• Remote controller display 295
• Supposed causes 295
• 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge as to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on page 429 2 make a comparison between the high pressure value checked with the service checker and the voltage of the pressure sensor see 1 3 make measurement of voltage of the pressure sensor 296
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 296
• Si34 803 troubleshooting by indication on the remote controller 296
• Troubleshooting 296
• Troubleshooting 285 296
• Outdoor unit actuation of low pressure sensor 297
• 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge as to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on page 429 2 make a comparison between the low pressure value checked with the service checker and the voltage of the pressure sensor see 1 3 make measurement of voltage of the pressure sensor 298
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 298
• Si34 803 troubleshooting by indication on the remote controller 298
• Troubleshooting 298
• Troubleshooting 287 298
• Applicable models 299
• Malfunction decision conditions 299
• Method of malfunction detection 299
• Outdoor unit inverter compressor motor lock 299
• Remote controller display 299
• Supposed causes 299
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 300
• Si34 803 troubleshooting by indication on the remote controller 300
• Troubleshooting 300
• Troubleshooting 289 300
• Applicable models 301
• Closed stop value obstacles at the air outlet improper power voltage faulty magnetic switch faulty compressor faulty current sensor a6p a7p 301
• Detects the overcurrent with current sensor ct 301
• Malfunction decision conditions 301
• Malfunction is decided when the detected current value exceeds the below mentioned value for 2 seconds 400 v class unit 15 a 200 v class unit 28 a 301
• Method of malfunction detection 301
• Note 1 abnormal case the current sensor value is 0 during std compressor operation the current sensor value is more than 15 a during std compressor stop 301
• Outdoor unit std compressor motor overcurrent lock 301
• Remote controller display 301
• Rxyq5p a 54p a 301
• Supposed causes 301
• Troubleshooting 301
• Applicable models 302
• Malfunction decision conditions 302
• Method of malfunction detection 302
• Outdoor unit malfunction of outdoor unit fan motor 302
• Remote controller display 302
• Supposed causes 302
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 303
• Troubleshooting 303
• Troubleshooting by indication on the remote controller si34 803 303
• Note refer to check 1 and 2 on p 59 304
• Si34 803 troubleshooting by indication on the remote controller 304
• Troubleshooting 304
• Troubleshooting 293 304
• Outdoor unit malfunction of moving part of electronic expansion valve y1e y2e 305
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 306
• Si34 803 troubleshooting by indication on the remote controller 306
• Troubleshooting 306
• Troubleshooting 295 306
• Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor 307
• Applicable models 307
• Faulty discharge pipe temperature sensor faulty connection of discharge pipe temperature sensor faulty outdoor unit pc board 307
• Malfunction decision conditions 307
• Method of malfunction detection 307
• Outdoor unit abnormal discharge pipe temperature 307
• Refer to thermistor resistance temperature characteristics table on p 28 307
• Remote controller display 307
• Rxyq5p a 54p a 307
• Supposed causes 307
• Troubleshooting 307
• When the discharge pipe temperature rises to an abnormally high level when the discharge pipe temperature rises suddenly 307
• Applicable models 308
• Excessive charging of refrigerant is detected by using the outside air temperature heat exchanging deicer temperature and liquid pipe temperature during a check run 308
• Malfunction decision conditions 308
• Method of malfunction detection 308
• Outdoor unit refrigerant overcharged 308
• Refer to thermistor resistance temperature characteristics table on p 27 308
• Refrigerant overcharge misalignment of the outside air thermistor misalignment of the heat exchanging deicer thermistor misalignment of the liquid pipe thermistor 308
• Remote controller display 308
• Rxyq5p a 54p a 308
• Supposed causes 308
• Troubleshooting 308
• When the amount of refrigerant which is calculated by using the outside air temperature heat exchanging deicer temperature and liquid pipe temperature during a check run exceeds the standard 308
• 1 disconnect connector x2a and measure the following resistance 309
• Abnormal fan motor signal circuit malfunction broken short or disconnection connector of fan motor connection cable fan inverter pc board malfunction 309
• Applicable models 309
• Detection of abnormal signal from fan motor 309
• In case of detection of abnormal signal at starting fan motor 309
• Malfunction decision conditions 309
• Method of malfunction detection 309
• Outdoor unit abnormal outdoor fan motor signal 309
• Remote controller display 309
• Rxyq5p a 54p a 309
• Supposed causes 309
• Troubleshooting 309
• Applicable models 310
• Defect of thermistor r1t for outdoor air defect of outdoor unit pc board a1p 310
• Malfunction decision conditions 310
• Malfunction is detected from the temperature detected by the outdoor air thermistor 310
• Method of malfunction detection 310
• Outdoor unit malfunction of thermistor r1t for outdoor air 310
• Refer to thermistor resistance temperature characteristics table on p 27 310
• Remote controller display 310
• Rxyq5p a 54p a 310
• Supposed causes 310
• Troubleshooting 310
• When the outside air temperature thermistor has short circuit or open circuit 310
• Applicable models 311
• Faulty current sensor a6p a7p faulty outdoor unit pc board 311
• Malfunction decision conditions 311
• Malfunction is detected according to the current value detected by current sensor 311
• Method of malfunction detection 311
• Outdoor unit current sensor malfunction 311
• Remote controller display 311
• Rxyq5p a 54p a 311
• Supposed causes 311
• Troubleshooting 311
• When the current value detected by current sensor becomes 5a or lower or 40a or more during standard compressor operation 311
• Applicable models 312
• Defect of thermistor r31t r32t or r33t for outdoor unit discharge pipe defect of outdoor unit pc board a1p defect of thermistor connection 312
• Malfunction decision conditions 312
• Malfunction is detected from the temperature detected by discharge pipe temperature thermistor 312
• Method of malfunction detection 312
• Note 5 hp class r3t 8 12 hp class r31t r32t 14 16hp class r31t r32t and r33t 312
• Outdoor unit malfunction of discharge pipe thermistor r3 r31 33t 312
• Refer to thermistor resistance temperature characteristics table on p 28 312
• Remote controller display 312
• Rxyq5p a 54p a 312
• Supposed causes 312
• The alarm indicator is displayed when the fan is being used also 312
• Troubleshooting 312
• When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected 312
• Applicable models 313
• Defect of thermistor r2t r7t for outdoor unit suction pipe defect of outdoor unit pc board a1p defect of thermistor connection 313
• Malfunction decision conditions 313
• Malfunction is detected from the temperature detected by the suction pipe temperature thermistor 313
• Method of malfunction detection 313
• Outdoor unit malfunction of thermistor r2t r7t for suction pipe 313
• Refer to thermistor resistance temperature characteristics table on p 27 313
• Remote controller display 313
• Rxyq5p a 54p a 313
• Supposed causes 313
• Troubleshooting 313
• When a short circuit or an open circuit in the suction pipe temperature thermistor is detected 313
• Applicable models 314
• Defect of thermistor r4t for outdoor unit coil defect of outdoor unit pc board a1p defect of thermistor connection 314
• Malfunction decision conditions 314
• Malfunction is detected from the temperature detected by the heat exchanger thermistor 314
• Method of malfunction detection 314
• Outdoor unit malfunction of thermistor r4t for outdoor unit heat exchanger 314
• Refer to thermistor resistance temperature characteristics table on p 27 314
• Remote controller display 314
• Rxyq5p a 54p a 314
• Supposed causes 314
• Troubleshooting 314
• When a short circuit or an open circuit in the heat exchange thermistor is detected 314
• Applicable models 315
• Faulty liquid pipe thermistor r6t faulty outdoor unit pc board defect of thermistor connection 315
• Malfunction decision conditions 315
• Malfunction is detected according to the temperature detected by liquid pipe thermistor 315
• Method of malfunction detection 315
• Outdoor unit malfunction of liquid pipe thermistor r6t 315
• Refer to thermistor resistance temperature characteristics table on p 27 315
• Remote controller display 315
• Rxyq5p a 54p a 315
• Supposed causes 315
• Troubleshooting 315
• When the liquid pipe thermistor is short circuited or open 315
• Applicable models 316
• Faulty subcooling heat exchanger gas pipe thermistor r5t faulty outdoor unit pc board 316
• Malfunction decision conditions 316
• Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor 316
• Method of malfunction detection 316
• Outdoor unit malfunction of subcooling heat exchanger gas pipe thermistor r5t 316
• Refer to thermistor resistance temperature characteristics table on p 27 316
• Remote controller display 316
• Rxyq5p a 54p a 316
• Supposed causes 316
• Troubleshooting 316
• When the subcooling heat exchanger gas pipe thermistor is short circuited or open 316
• 1 voltage measurement point 317
• 2 refer to pressure sensor pressure voltage characteristics table on p 29 317
• Applicable models 317
• Defect of high pressure sensor system connection of low pressure sensor with wrong connection defect of outdoor unit pc board 317
• Malfunction decision conditions 317
• Malfunction is detected from the pressure detected by the high pressure sensor 317
• Method of malfunction detection 317
• Outdoor unit malfunction of high pressure sensor 317
• Remote controller display 317
• Rxyq5p a 54p a 317
• Supposed causes 317
• Troubleshooting 317
• When the high pressure sensor is short circuit or open circuit 317
• 1 voltage measurement point 318
• 2 refer to pressure sensor pressure voltage characteristics table on p 29 318
• Applicable models 318
• Defect of low pressure sensor system connection of high pressure sensor with wrong connection defect of outdoor unit pc board 318
• Malfunction decision conditions 318
• Malfunction is detected from pressure detected by low pressure sensor 318
• Method of malfunction detection 318
• Outdoor unit malfunction of low pressure sensor 318
• Remote controller display 318
• Rxyq5p a 54p a 318
• Supposed causes 318
• Troubleshooting 318
• When the low pressure sensor is short circuit or open circuit 318
• Actuation of fin thermal actuates above 93 c defect of inverter pc board defect of fin thermistor 319
• Applicable models 319
• Fin temperature is detected by the thermistor of the radiation fin 319
• Malfunction decision conditions 319
• Method of malfunction detection 319
• Outdoor unit malfunction of inverter radiating fin temperature rise 319
• Remote controller display 319
• Rxyq5p a 54p a 319
• Supposed causes 319
• Troubleshooting 319
• When the temperature of the inverter radiation fin increases above 93 c 319
• Inverter pc board for compressor 320
• Refer to thermistor resistance temperature characteristics table on p 27 320
• Applicable models 321
• Compressor inspection 321
• Defect of compressor coil disconnected defective insulation compressor start up malfunction mechanical lock defect of inverter pc board 321
• Malfunction decision conditions 321
• Malfunction is detected from current flowing in the power transistor 321
• Method of malfunction detection 321
• Outdoor unit inverter compressor abnormal 321
• Remote controller display 321
• Rxyq5p a 54p a 321
• Supposed causes 321
• Troubleshooting 321
• When an excessive current flows in the power transistor instantaneous overcurrent also causes activation 321
• Si34 803 troubleshooting by indication on the remote controller 322
• Troubleshooting 322
• Troubleshooting 311 322
• Applicable models 323
• Compressor overload compressor coil disconnected defect of inverter pc board faulty compressor 323
• Malfunction decision conditions 323
• Malfunction is detected by current flowing in the power transistor 323
• Method of malfunction detection 323
• Outdoor unit inverter current abnormal 323
• Output current check 323
• Remote controller display 323
• Rxyq5p a 54p a 323
• Supposed causes 323
• Troubleshooting 323
• When overload in the compressor is detected inverter secondary current 16 a y1 yl and 27 a tl 323
• Si34 803 troubleshooting by indication on the remote controller 324
• Troubleshooting 324
• Troubleshooting 313 324
• Applicable models 325
• Defect of compressor failure to open the stop valve pressure differential start faulty compressor connection defect of inverter pc board 325
• Malfunction decision conditions 325
• Method of malfunction detection 325
• Outdoor unit inverter start up error 325
• Remote controller display 325
• Rxyq5p a 54p a 325
• Supposed causes 325
• This malfunction code will be output if overcurrent occurs at the time of startup 325
• Troubleshooting 325
• When the startup control is failed when an overcurrent is passed to the inverter due to the malfunction of a compressor or electrical system 325
• Si34 803 troubleshooting by indication on the remote controller 326
• Troubleshooting 326
• Troubleshooting 315 326
• Applicable models 327
• Malfunction decision conditions 327
• Method of malfunction detection 327
• Outdoor unit malfunction of transmission between inverter and control pc board 327
• Remote controller display 327
• Supposed causes 327
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 328
• Si34 803 troubleshooting by indication on the remote controller 328
• Troubleshooting 328
• Troubleshooting 317 328
• Troubleshooting 329
• Troubleshooting by indication on the remote controller si34 803 329
• Applicable models 330
• Imbalance in supply voltage is detected in pc board imbalance in the power supply voltage causes increased ripple of voltage of the main circuit capacitor in the inverter consequently the increased ripple is detected 330
• Malfunction decision conditions 330
• Method of malfunction detection 330
• Open phase voltage imbalance between phases defect of main circuit capacitor defect of inverter pc board defect of k2 relay in inverter pc board improper main circuit wiring 330
• Outdoor unit inverter over ripple protection 330
• Remote controller display 330
• Rxyq5p a 54p a 330
• Supposed causes 330
• Troubleshooting 330
• When the resistance value of thermistor becomes a value equivalent to open or short circuited status malfunction is not decided while the unit operation is continued p1 will be displayed by pressing the inspection button when the amplitude of the ripple exceeding a certain value is detected for consecutive 4 minutes 330
• Applicable models 331
• Defect of radiator fin temperature sensor defect of inverter pc board 331
• Malfunction decision conditions 331
• Method of malfunction detection 331
• Outdoor unit malfunction of inverter radiating fin temperature rise sensor 331
• Remote controller display 331
• Resistance of radiation fin thermistor is detected when the compressor is not operating 331
• Rxyq5p a 54p a 331
• Supposed causes 331
• Troubleshooting 331
• When the resistance value of thermistor becomes a value equivalent to open or short circuited status malfunction is not decided while the unit operation is continued p4 will be displayed by pressing the inspection button 331
• Inverter pc board for compressor 332
• Refer to thermistor resistance temperature characteristics table on p 27 332
• Applicable models 333
• Faulty or no field setting after replacing main pc board mismatching of type of pc board 333
• Malfunction decision conditions 333
• Method of malfunction detection 333
• Outdoor unit faulty field setting after replacing main pc board or faulty combination of pc board 333
• Remote controller display 333
• Rxyq5p a 54p a 333
• Supposed causes 333
• The faulty or no field setting after replacing pc board or faulty pc board combination is detected through communications with the inverter 333
• Troubleshooting 333
• Whether or not the field setting or the type of the pc board is correct through the communication date is judged 333
• 1 refer to thermistor resistance temperature characteristics table on p 27 2 refer to pressure sensor pressure voltage characteristics table on p 29 334
• Applicable models 334
• Malfunction decision conditions 334
• Method of malfunction detection 334
• Microcomputer judge and detect if the system is short of refrigerant malfunction is not decided while the unit operation is continued 334
• Out of gas or refrigerant system clogging incorrect piping defect of pressure sensor defect of outdoor unit pc board a1p defect of thermistor r7t or r4t 334
• Outdoor unit low pressure drop due to refrigerant shortage or electronic expansion valve failure 334
• Remote controller display 334
• Rxyq5p a 54p a 334
• Short of gas malfunction is detected by discharge pipe temperature thermistor 334
• Supposed causes 334
• Troubleshooting 334
• Applicable models 335
• Malfunction decision conditions 335
• Method of malfunction detection 335
• Power supply reverse phase power supply open phase defect of outdoor pc board a1p 335
• Remote controller display 335
• Reverse phase open phase 335
• Rxyq5p a 54p a 335
• Supposed causes 335
• The phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged 335
• Troubleshooting 335
• When a significant phase difference is made between phases 335
• Applicable models 336
• Malfunction decision conditions 336
• Method of malfunction detection 336
• Outdoor unit power supply insufficient or instantaneous failure 336
• Remote controller display 336
• Supposed causes 336
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 337
• Troubleshooting 337
• Troubleshooting by indication on the remote controller si34 803 337
• Si34 803 troubleshooting by indication on the remote controller 338
• Troubleshooting 338
• Troubleshooting 327 338
• Applicable models 339
• Check operation is executed or not 339
• Check operation is not executed 339
• Malfunction decision conditions 339
• Malfunction is decided when the unit starts operation without check operation 339
• Method of malfunction detection 339
• Outdoor unit check operation not executed 339
• Remote controller display 339
• Rxyq5p a 54p a 339
• Supposed causes 339
• Troubleshooting 339
• Applicable models 340
• Malfunction decision conditions 340
• Malfunction of transmission between indoor units 340
• Method of malfunction detection 340
• Remote controller display 340
• Supposed causes 340
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 341
• Troubleshooting 341
• Troubleshooting by indication on the remote controller si34 803 341
• All models of indoor units 342
• Applicable models 342
• In case of controlling with 2 remote controller check the system using microcomputer is signal transmission between indoor unit and remote controller main and sub is normal 342
• Indoor unit malfunction of transmission between remote controller and indoor unit 342
• Malfunction decision conditions 342
• Malfunction of indoor unit remote controller transmission connection of two main remote controllers when using 2 remote controllers defect of indoor unit pc board defect of remote controller pc board malfunction of transmission caused by noise 342
• Method of malfunction detection 342
• Normal transmission does not continue for specified period 342
• Remote controller display 342
• Supposed causes 342
• Troubleshooting 342
• Applicable models 343
• Indoor unit malfunction of transmission between outdoor units 343
• Malfunction decision conditions 343
• Method of malfunction detection 343
• Remote controller display 343
• Supposed causes 343
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 344
• Si34 803 troubleshooting by indication on the remote controller 344
• Troubleshooting 344
• Troubleshooting 333 344
• All models of indoor units 345
• Applicable models 345
• In case of controlling with 2 remote controller check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal 345
• Indoor unit malfunction of transmission between main and sub remote controllers 345
• Malfunction decision conditions 345
• Malfunction of transmission between main and sub remote controller connection between sub remote controllers defect of remote controller pc board 345
• Method of malfunction detection 345
• Normal transmission does not continue for specified period 345
• Remote controller display 345
• Supposed causes 345
• Troubleshooting 345
• All models of indoor units 346
• Applicable models 346
• Detect the malfunction signal of any other indoor unit within the system concerned 346
• Indoor unit malfunction of transmission between indoor and outdoor units in the same system 346
• Malfunction decision conditions 346
• Malfunction of transmission within or outside of other system malfunction of electronic expansion valve in indoor unit of other system defect of pc board of indoor unit in other system improper connection of transmission wiring between indoor and outdoor unit 346
• Method of malfunction detection 346
• Remote controller display 346
• Supposed causes 346
• Troubleshooting 346
• When the malfunction decision is made on any other indoor unit within the system concerned 346
• Applicable models 347
• Improper combination of indoor and outdoor units indoor units and remote controller 347
• Malfunction decision conditions 347
• Method of malfunction detection 347
• Remote controller display 347
• Supposed causes 347
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 348
• Si34 803 troubleshooting by indication on the remote controller 348
• The number of indoor units that can be connected to a single outdoor unit system depends on the model of outdoor unit 348
• Troubleshooting 348
• Troubleshooting 337 348
• Address duplication of centralized controller 349
• Applicable models 350
• Malfunction decision conditions 350
• Malfunction of transmission between centralized controller and indoor unit 350
• Method of malfunction detection 350
• Remote controller 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
• Troubleshooting 351
• Troubleshooting by indication on the remote controller si34 803 351
• Si34 803 troubleshooting by indication on the remote controller 352
• Troubleshooting 352
• Troubleshooting 341 352
• All models of indoor units rxyq5p a 54p a 353
• Applicable models 353
• 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 353
• Malfunction decision conditions 353
• Method of malfunction detection 353
• 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 353
• 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 353
• Remote controller display 353
• Supposed causes 353
• System is not set yet 353
• 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 353
• Troubleshooting 353
• Malfunction of system refrigerant system address undefined 354
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 355
• Troubleshooting 355
• Troubleshooting by indication on the remote controller si34 803 355
• Pc board defect 356
• Troubleshooting op central remote controller 356
• Malfunction of transmission between optional controllers for centralized control 357
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 358
• Si34 803 troubleshooting op central remote controller 358
• Troubleshooting 358
• Troubleshooting 347 358
• Improper combination of optional controllers for centralized control 359
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 360
• Si34 803 troubleshooting op central remote controller 360
• Troubleshooting 360
• Troubleshooting 349 360
• Address duplication improper setting 361
• Address duplication of centralized controller 361
• Applicable models 361
• Central remote controller intelligent touch controller schedule timer 361
• Detect the malfunction according to diii net transmission data 361
• Malfunction decision conditions 361
• Method of malfunction detection 361
• Remote controller display 361
• Supposed causes 361
• Troubleshooting 361
• Two or more units of central remote controllers and intelligent touch controllers are connected and all of them are set to master unit central setting or slave unit central setting two units of schedule timers are connected 361
• Combination of intelligent touch controller and central remote controller 362
• Master slave unit setting table 362
• Master unit central connector setting table 362
• Si34 803 troubleshooting op central remote controller 362
• The master unit central setting connector cn1 x1a is mounted at the factory to independently use a single unit of the intelligent touch controller or a single unit of the central remote controller do not dismount the master unit central setting connector i e use the connector with the factory setting unchanged to independently use the schedule timer insert an independent use setting connector no independent use setting connector has been mounted at the factory insert the connector which is attached to the casing of the main unit in the pc board cn1 x1a independent use connector master unit central setting connector to use two or more central equipment in combination make settings according to the table shown below 362
• Troubleshooting 351 362
• Procedures for detecting broken wires in transmission wiring for control 363
• Applicable models 364
• Malfunction decision conditions 364
• Method of malfunction detection 364
• Operation lamp blinks 364
• Remote controller display 364
• Supposed causes 364
• Troubleshooting op unified on off controller 364
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 365
• Troubleshooting 365
• Troubleshooting op unified on off controller si34 803 365
• Applicable models 366
• Display under centralized control blinks repeats single blink 366
• Malfunction decision conditions 366
• Method of malfunction detection 366
• Remote controller display 366
• Supposed causes 366
• Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 367
• Troubleshooting 367
• Troubleshooting op unified on off controller si34 803 367
• Si34 803 troubleshooting op unified on off controller 368
• Troubleshooting 357 368
• Applicable models 369
• Central control address group no is not set for indoor unit improper control range setting switch improper wiring of transmission wiring 369
• Detect the malfunction according to diii net transmission data 369
• Display under centralized control blinks repeats double blink 369
• Malfunction decision conditions 369
• Method of malfunction detection 369
• Remote controller display 369
• Supposed causes 369
• Troubleshooting 369
• Troubleshooting op unified on off controller si34 803 369
• Under centralized control repeats double blink 369
• Unified on off controller 369
• When no central control addresses are set to indoor units when no indoor units are connected within the control range 369
• 1 turn off the power supply 2 measure the resistance between vcc and each phase of u v w and gnd and each phase at the motor side connectors five core wire to check that the values are balanced within the range of 20 while connector or relay connector is disconnected furthermore to use a multiple meter for measurement connect the probe of negative pole to vcc and that of positive pole to gnd 370
• Check no 1 370
• Check no 2 370
• Check on connector of fan motor power supply cable 1 turn off the power supply measure the resistance between phases of u v w at the motor side connectors three core wire to check that the values are balanced and there is no short circuiting while connector or relay connector is disconnected 370
• Si34 803 troubleshooting op unified on off controller 370
• Troubleshooting 359 370
• Check 3 check for causes of rise in high pressure 371
• Referring to the fault tree analysis fta shown below probe the faulty points 371
• Troubleshooting 371
• Troubleshooting op unified on off controller si34 803 371
• Check 4 check for causes of drop in low pressure 372
• Referring to the fault tree analysis fta shown below probe the faulty points 372
• Si34 803 troubleshooting op unified on off controller 372
• Troubleshooting 361 372
• Example of connection r 410a type 25 7 thermistor resistance temperature characteristics 27 8 pressure sensor 29 9 method of checking the inverter s power transistors and diode modules 30 374
• List of electrical and functional parts 06 374
• Option list 19 374
• Part 7 appendix 374
• Piping diagrams 64 374
• Piping installation point 23 374
• Wiring diagrams for reference 75 374
• Outdoor unit 375
• Piping diagrams 375
• Rxyq5pay1 375
• Rxyq5ptl rxyq5payl 376
• Rxyq8pay1 377
• Rxyq8ptl rxyq8payl 378
• Rxyq10pa 12pay1 379
• Rxyq10p 12ptl rxyq10pa 12payl 380
• Rxyq14p 16p 18ptl rxyq14pa 16pa 18pay1 rxyq14pa 16pa 18payl 381
• Electronic expansion valve filter filter 382
• Flare connectio 382
• Flare connection 382
• Fxcq fxfq fxkq fxsq fxmq fxhq fxaq fxlq fxnq 382
• Gas piping connection port 382
• Heat exchanger 382
• Indoor unit 382
• Liquid piping connection port 382
• Φ 15 or less attached piping above φ 19 382
• Electronic expansion valve 383
• Filter filter 383
• Fxmq40p 50p 63p 80p 100p 125pve 383
• Gas side 383
• Indoor heat exchanger 383
• Liquid side 383
• Refrigerant pipe connection port diameters 383
• Fxmq125mf 200mf 250mfv1 384
• Refrigerant pipe connection port diameters 384
• Connection unit 385
• Fxuq bevq 385
• Indoor unit 385
• Appendix 375 386
• Outdoor unit 386
• Rxyq5pay1 rxyq5payl 386
• Si34 803 wiring diagrams for reference 386
• Wiring diagrams for reference 386
• Appendix 387
• D060626b 387
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 387
• Rxyq5ptl 387
• Wiring diagrams for reference si34 803 387
• Appendix 377 388
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 only for rxyq refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 388
• Rxyq8pay1 rxyq8payl 388
• Si34 803 wiring diagrams for reference 388
• Appendix 389
• D060627b 389
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 389
• Rxyq8ptl 389
• Wiring diagrams for reference si34 803 389
• Appendix 379 390
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 only for rxyq refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph s2ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 390
• Rxyq10pay1 rxyq10payl 390
• Si34 803 wiring diagrams for reference 390
• Appendix 391
• D060629b 391
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 391
• Rxyq10ptl 391
• Wiring diagrams for reference si34 803 391
• Appendix 381 392
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph s2ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 392
• Rxyq12pay1 rxyq12payl 392
• Si34 803 wiring diagrams for reference 392
• Appendix 393
• D060630b 393
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 393
• Rxyq12ptl 393
• Wiring diagrams for reference si34 803 393
• Appendix 383 394
• D060911a 394
• Notes 1 this wiring diagram is applied only to the outdoor unit 2 field wiring 3 terminal strip connector terminal protective earth screw 4 when using the optional adaptor refer to the installation manual of the optional adaptor 5 for connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor muli transmission q1 q2 refer to the installation manual 6 how to use bs1 5 and ds1 switch refer to service precaution label on el compo box cover 7 when operating don t shortcircuit the protection device s1ph s3ph 8 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 394
• Rxyq14pa 16pa 18pay1 rxyq14pa 16pa 18payl 394
• Si34 803 wiring diagrams for reference 394
• A2p magnetic relay e3hc v1cp safety devices input k9r 395
• A3p v1r diode bridge a2p k84r 395
• A5p motor compressor power module a2p 395
• Appendix 395
• E1hc 3hc 395
• Electronic expansion valve main 395
• F1u f2u 395
• L1 red l2 wht l3 blu 395
• M1c 3c 395
• Magnetic contactor m1c a2p magnetic contactor m2c m3c magnetic relay k2m k3m magnetic relay y1s magnetic relay y2s magnetic relay y3s magnetic relay e1hc selector switch cool heat s2s pressure switch high k7r 395
• Magnetic relay current limiting 395
• Magnetic relay e2hc current sensor a4p a6p a1p t1a k8r 395
• Motor fan connector m1f m2f x1a 4a bs1 5 395
• Phase reversal detect circuit q1rp c1 x1m terminal strip control a1p 395
• Pilotlamp service monitor green 395
• Printed circuit board inv push button switch mode set return test reset capacitor dip switch crankcase heater fuse 16a dc450v a2p a5p fuse t 3 5a 250v a1p 395
• Printed circuit board main printed circuit board inv printed circuit board abc i p 395
• Ps x1m terminal strip power supply 395
• Resistor current limiting ds1 x1m terminal strip abc i p a3p r1 395
• Resistor current sensor a2p f1u y2e r112 395
• Resistor current sensor a2p y1s solenoid valve hotgas r502 395
• Resistor current sensor a5p 395
• Rxyq14p 16p 18ptl 395
• S1s s1npl k5r 395
• Selector switch fan cool heat 395
• Switching power supply a1p a2p 395
• Thermistor air a1p y2s r1t solenoid valve oil h1p 8p 395
• Thermistor fin a2p y3s r1t solenoid valve 4 way valve thermistor suction r2t noise filter ferrite core z1c 7c hap thermistor m1c 3c discharge z1f 395
• Thermistor heat exc deicer r4t 395
• Thermistor heat exc outlet r5t 395
• Thermistor liq pipe r6t k3r thermistor accumulator r7t pressure sensor high cool heat selector s1nph k4r pressure sensor low 395
• V1r reactor power module a5p l1r 395
• Wiring diagrams for reference si34 803 395
• Appendix 385 396
• Field wiring 396
• Rxyq5pa 8pa 10pa 12pa 14pa 16pa 18pay1 rxyq5pa 8pa 10pa 12pa 14pa 16pa 18payl 396
• Si34 803 wiring diagrams for reference 396
• Appendix 397
• Rxyq5p 8p 10p 12p 14p 16p 18ptl 397
• Wiring diagrams for reference si34 803 397
• Appendix 387 398
• Rxyq20pa 22pa 24pa 26pa 28pa 30pa 32pay1 rxyq20pa 22pa 24pa 26pa 28pa 30pa 32payl 398
• Si34 803 wiring diagrams for reference 398
• Appendix 399
• Rxyq20p 22p 24p 26p 28p 30p 32ptl 399
• Wiring diagrams for reference si34 803 399
• Appendix 389 400
• Rxyq34pa 36pa 38pa 40pa 42pa 44pa 46pa 48pa 50pa 52pa 54pay1 rxyq34pa 36pa 38pa 40pa 42pa 44pa 46pa 48pa 50pa 52pa 54payl 400
• Si34 803 wiring diagrams for reference 400
• Appendix 401
• Rxyq34p 36p 38p 40p 42p 44p 46p 48p 50p 52p 54ptl 401
• Wiring diagrams for reference si34 803 401
• A1p a2p 402
• A4p a3p 402
• Appendix 391 402
• C1 f1u 402
• Capacitor 402
• Connector for optional parts 402
• D059890 402
• Diode bridge 402
• Electronic expansion valve 402
• Ferrite core 402
• Float switch 402
• Fuse f 5a 250v 402
• Fxfq25p 32p 40p 50p 63p 80p 100p 125pve 402
• Indoor unit 402
• Light emitting diode 402
• M1s r1t r2t r3t r4t 402
• Magnetic relay 402
• Noise filter 402
• Notes 1 terminal connector field wiring 2 in case using central remote controller connect it to the unit in accordance with the attached installation manual 3 x24a x33a and x35a are connected when the optional accessories are being used 402
• S1l v1r 402
• Selector switch main sub 402
• Selector switch wireless address set 402
• Service monitor green 402
• Si34 803 wiring diagrams for reference 402
• Terminal strip 402
• Thermistor air 402
• Thermistor coil liquid 402
• Thermistor ptc 402
• When connecting the input wires from outside forced off or on off control operation can be selected by the remote controller see installation manual for more details 5 confirm the method of setting the selector switch ss1 ss2 by installation manual and engineering data etc 6 symbols shows as follows red red blk black wht white ylw yellow grn green org orange brn brown pnk pink gry gray blu blue 402
• Fxcq20m 25m 32m 63mve 403
• Fxcq40m 50m 80m 125mve 404
• Fxkq25ma 32ma 40ma 63mave 405
• Appendix 395 406
• Fxdq20pb 25pb 32pb fxdq40nb 50nb 63nbve with drain pump 406
• Si34 803 wiring diagrams for reference 406
• Appendix 407
• Fxdq20pb 25pb 32pb fxdq40nb 50nb 63nbvet without drain pump 407
• Wiring diagrams for reference si34 803 407
• Appendix 397 408
• D039561b 408
• Fxsq20m 25m 32m 40m 50m 63m 80m 100m 125mve 408
• Hu k1m s1h x3m 408
• Humidistat terminal block e1h wired remote controller thermistor air selector switch main sub adaptor for wiring fuse 5a 250v magnetic relay magnetic relay magnetic relay e1h magnetic relay hu connector for optional parts connector adaptor for wiring connector wiring adaptor for electorical appendices 408
• Indoor unit printed circuit board a1p a2p c1 f1u hap 408
• Kcr kfr khr khur 408
• Kpr m1f m1p q1m 408
• Magnetic relay e1h 408
• Magnetic relay m1f magnetic relay m1p motor indoor fan motor drain pump thermo switch 135 c or 145 c note9 m1f embedded thermistor air thermistor coil float switch transformer 220 240v 22v terminal block power terminal block control electronic expansion valve optional parts electric heater fuse 15a 250v humidifier 408
• Notes 1 terminal block connector terminal 2 field wiring 3 in case using central remote controller connect it to the unit in accordance with the attached instruction manual 4 when connecting the input wires from outside fdrced off or on off control operation can be selected by remote controller in details refer to the installation manual attached the unit 5 in case installing the electric heater execute the additional wiring for heater circuit k1m e1h in this case the main power supply has to be supplied independently 6 in case high or low e s p operation change over the wiring connection from x4a of a2p to x3a or x5a 7 symbols show as follows pnk pink wht white ylw yellow gry gray org orange blu blue blk black red red brn brown grn green 8 use copper conductors only 9 only 80 100 125 type 408
• R1t ss1 408
• S1l t1r x1m x2m y1e 408
• Si34 803 wiring diagrams for reference 408
• Terminal board capacitor m1f fuse 5a 250v 408
• X16a x18a 408
• Appendix 409
• Capacitor 409
• Connector for wiring 409
• Diode bridge 409
• Electronic expansion valve 409
• F3u f2u 409
• Float switch 409
• Fuse t 3 5a 250v 409
• Fuse t 5a 250v 409
• Fuse t 6 a 250v fuse t 6 a 250v 409
• Fxmq40p 50p 63p 80p 100p 125pve 409
• Indoor unit 409
• Kpr k1r l1r m1f m1p 409
• Magnetic relay 409
• Motor drain pump 409
• Motor fan 409
• Noise filter 409
• Noise filter ferrite core 409
• Notes 1 terminal connector field wiring 2 in case using central remote controller connect it to the unit in accordance with the attached installation manual 3 when connecting the input wires from outside forced off or on off control operation can be selected by remote controller in details refer to the installation manual attached the unit 4 colors blk black red red blu blue wht white pnk pink ylw yellow brn brown gry gray grn green org orange 409
• Power module 409
• Printed circuit board 409
• Printed circuit board capacitor 409
• Printed circuit board fan 409
• R1t ss1 409
• R3 r4 connector optional accessory 409
• R3t r4t 409
• Reactor 409
• Selector switch main sub 409
• Switching power supply a1p a2p resistor current limiting current sensing device 409
• Terminal strip control 409
• Terminal strip power supply 409
• Thermistor air 409
• Thermistor discharge air 409
• Thermistor gas 409
• Thermistor liquid 409
• V2r x1m 409
• Wired remote controller 409
• Wiring diagrams for reference si34 803 409
• Fxmq200ma 250mave 410
• Fxhq32ma 63ma 100mave 411
• Appendix 401 412
• Fxaq20ma 25ma 32mave 40ma 50ma 63mave 412
• Si34 803 wiring diagrams for reference 412
• Fxlq20ma 25ma 32ma 40ma 50ma 63mave fxnq20ma 25ma 32ma 40ma 50ma 63mave 413
• Fxuq71ma 100ma 125mav1 414
• Fxmq125mf 200mf 250mfv1 415
• Bevq71ma 100ma 125mave 416
• List of electrical and functional parts 417
• Outdoor unit 417
• Rxyq5pay1 8pay1 417
• Rxyq10pay1 12pay1 418
• Outdoor unit 60hz 420
• Rxyq5 8payl ptl 420
• Rxyq10 12payl ptl 421
• Rxyq14 16 18payl ptl 422
• Appendix 423
• C off 87 c on 423
• Indoor side 423
• Indoor unit 423
• List of electrical and functional parts si34 803 423
• Appendix 413 424
• Only for fxdq20 63n b ve fxdq20 32pbve with drain pump type 424
• Si34 803 list of electrical and functional parts 424
• Appendix 425
• List of electrical and functional parts si34 803 425
• Appendix 415 426
• K ω 25 c 426
• Si34 803 list of electrical and functional parts 426
• St8602a 6 φ 6 426
• St8605 6 φ 8 426
• Μ f 400v 426
• Appendix 427
• List of electrical and functional parts si34 803 427
• Appendix 417 428
• Si34 803 list of electrical and functional parts 428
• Thermal protector 130 c off 83 c on 428
• Appendix 429
• List of electrical and functional parts si34 803 429
• 2 up to 2 adaptors can be fixed for each installation box 3 only one installation box can be installed for each indoor unit 4 up to 2 installation boxes can be installed for each indoor unit 5 installation box no 8 is necessary for second adaptor 6 installation box no 8 is necessary for each adaptor 7 this adaptor is required when connecting with optional controller for centralized control 8 brc2a51 is also available 430
• Fxdq nb fxdq pb 430
• Note 1 installation box no is necessary for each adaptor marked 430
• Operation control system optional accessories 430
• Option list 430
• Option list of controllers 430
• Various pc boards 430
• 1 interface for use in bacne 431
• 1 optional diii board dam411b51 431
• 2 interface for use in lonwork 431
• 2 optional di board dam412b51 431
• 2 software p p d dcs002c51 431
• 2 web dam004a51 431
• 3 eco dam003a51 431
• 3 web dcs004a51 431
• 4 electrical box with earth terminal 4 blocks kjb411a 431
• 4 optional diii ai unit dam101a51 431
• 5 di unit dec101a51 431
• 6 dio unit dec102a51 431
• Appendix 431
• Basic hardware intelligent touch controller dcs601c51 431
• Basic hardware number of units to be connected 431
• Building management system 431
• Communication line 431
• Contact analog signal 431
• Dms502b51 431
• Dms504b51 431
• Hardware diii net plus adaptor dcs601a52 431
• Intelligent manager iii 431
• Is a registered trade mark of echelon corporation 3 installation box for adaptor must be procured on site 431
• Is a registered trademark of american society of heating refrigerating and air conditioning engineers ashrae 2 lonwork 431
• Note 1 bacne 431
• Note 1 installation box for adaptor must be obtained locally 2 for residential use only cannot be used with other centralized control equipment 431
• Option 431
• Option list si34 803 431
• Option software 431
• P p d dam002a51 431
• Parallel interface basic unit dpf201a51 431
• System configuration 431
• Temperature measurement units dpf201a52 431
• Temperature setting units dpf201a53 431
• Unification adaptor for computerized control dcs302a52 431
• Units dam602b51 512 units dam602b51x2 768 units dam602b51x3 1024 units dam602b51x4 2 1 431
• Units dam602b52 431
• Appendix 421 432
• Note order products 432
• Option lists outdoor unit 432
• Rxyq20 36pay1 payl ptl 432
• Rxyq38 54pay1 payl ptl 432
• Rxyq5 18pay1 payl ptl 432
• Si34 803 option list 432
• Appendix 433
• Note order products 433
• Option list si34 803 433
• Rxyq16 18pahy1 pahyl phtl 433
• Rxyq24 30pahy1 pahyl phtl 433
• Rxyq32 50pahy1 pahyl phtl 433
• Appendix 423 434
• In the case of 2m or less 434
• In the case of 2m or more 434
• Piping installation point 434
• Si34 803 piping installation point 434
• Since there is a possibility that oil may be collected on a stop machine side install piping between outdoor units to go to level or go up to an outdoor unit and to make a slope 434
• The projection part between multi connection piping kits 434
• When the piping length between the multi connection kits or between multi connection kit and outdoor unit is 2m or more prepare a vertical projection part 200mm or more as shown below only on the gas pipe line location less than 2m from multi connection kit 434
• The example of a wrong pattern 435
• Appendix 425 436
• Example of connection 436
• Example of connection r 410a type 436
• Example refrigerant branch using refnet header 436
• Example refrigerant branch using refnet joint 436
• Example refrigerant branch using refnet joint and refnet header 436
• Pipe size selection 436
• Refrigerant branch kit selection 436
• Si34 803 example of connection r 410a type 436
• Diameter of above case 437
• How to calculate the additional refrigerant to be charged 437
• Note 1 437
• Note 2 437
• Note 3 437
• Appendix 427 438
• Indoor unit for air suction r1t for liquid pipe r2t for gas pipe r3t 438
• Outdoor unit for fin thermistor r1t 438
• Outdoor unit for outdoor air r1t for coil r2t for suction pipe r4t for receiver gas pipe r5t for receiver outlet liquid pipe r6t 438
• Si34 803 thermistor resistance temperature characteristics 438
• Thermistor resistance temperature characteristics 438
• Appendix 439
• Outdoor unit thermistors for discharge pipe r3t r3 439
• Thermistor resistance temperature characteristics si34 803 439
• Pressure sensor 440
• Method of checking the inverter s power transistors and diode modules 441
• Diode module checking 442
• Power module checking 442
• When using the analog type of multiple tester make measurement in resistance measurement mode in the x1k ω range 442
• When using the digital type of multiple tester make measurement in diode check mode 442
• Part 8 444
• Part 8 precautions for new refrigerant r 410a 444
• Precautions for new refrigerant r 410a 444
• Precautions for new refrigerant r 410a 34 444
• 1 non azeotropic mixture refrigerant mixture of two or more refrigerants having different boiling points 2 quasi azeotropic mixture refrigerant mixture of two or more refrigerants having similar boiling points 3 the design pressure is different at each product please refer to the installation manual for each product reference 1 mpa 10 9716 kgf c 445
• About refrigerant r 410a 445
• Characteristics of new refrigerant r 410a 1 performance almost the same performance as r 22 and r 407c 2 pressure working pressure is approx 1 times more than r 22 and r 407c 3 refrigerant composition few problems in composition control since it is a quasi azeotropic mixture refrigerant 445
• Outline 445
• Precautions for new refrigerant r 410a 445
• Precautions for new refrigerant r 410a 435 446
• Si34 803 precautions for new refrigerant r 410a 446
• Thermodynamic characteristic of r 410a 446
• Refrigerant cylinders 447
• As for the charge mouthpiece and packing 1 2unf20 is necessary for mouthpiece size of charge hose 448
• Copper tube material and thickness 448
• Material 448
• O o o o 1 2h 1 2h 1 2h 1 2h 1 2h 1 2h 1 2h 448
• O o o o o 1 2h 1 2h 1 2h 1 2h 1 2h 1 2h 448
• O soft annealed h hard drawn 448
• Pipe size 448
• R 410a 448
• R 410a is used under higher working pressure compared to previous refrigerants r 22 r 407c furthermore the refrigerating machine oil has been changed from suniso oil to ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems therefore gauge manifolds and charge hoses that are used with a previous refrigerant r 22 r 407c can not be used for products that use new refrigerants be sure to use dedicated tools and devices 448
• Service tools 448
• Thickness t mm 0 0 0 1 1 1 1 1 1 1 1 448
• Tool compatibility 448
• Ve up r 407c 448
• Φ 6 φ 9 φ 12 φ 15 φ 19 φ 22 φ 25 φ 28 φ 31 φ 38 φ 44 448
• Conventional flaring tools can be used when the work process is changed change of work process previously a pipe extension margin of 0 to 0 mm was provided for flaring for r 410a air conditioners perform pipe flaring with a pipe extension margin of 1 to 1 mm for clutch type only conventional tool with pipe extension margin adjustment can be used 449
• Differences 2 change of dimension a 449
• Flaring tool 449
• Specifications 2 dimension a 449
• Unit mm 449
• Can not be used 452
• Drawings flow charts 456
• Ask a qualified installer or contractor to install this product do not try to install the product yourself improper installation can result in water or refrigerant leakage electrical shock fire or explosion 458
• Cautions on product corrosion 458
• Daikin industries ltd s products are manufactured for export to numerous countries throughout the world daikin industries ltd does not have control over which products are exported to and used in a particular country prior to purchase please therefore confirm with your local authorised importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used this statement does not purport to exclude restrict or modify the application of any local legislation 458
• Http www daikin com global_ac 458
• If you have any enquiries please contact your local importer distributor and or retailer 458
• Printed in japan 06 2008 ak si34 803 458
• Read the user s manual carefully before using this product the user s manual provides important safety instructions and warnings be sure to follow these instructions and warnings 458
• Use only those parts and accessories supplied or specified by daikin ask a qualified installer or contractor to install those parts and accessories use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion 458