Daikin FXSQ40P7VEB [88/370] Heating oil return defrost operation at low outdoor air temperature

Содержание

• Function general 2 2
• Functional parts layout 4 2
• Introduction v 2
• Model names of indoor outdoor units 2 external appearance 2
• Model selection 4 features of this model series 2
• Part 1 general information 2
• Part 2 specifications 2
• Part 3 refrigerant circuit 3 2
• Part 4 function 0 2
• R 410a heat pump 50hz 2
• Refrigerant circuit 4 2
• Refrigerant flow for each operation mode 8 2
• Specifications 2
• Standby 5 2
• Stopping operation 4 2
• Table of contents 2
• Normal operation 0 3
• Outdoor unit pcb layout 45 3 field setting 46 3
• Outline of control indoor unit 14 3
• Part 5 test operation 28 3
• Protection control 8 3
• Rotation control 6 3
• Special control 05 3
• Startup control 7 3
• Test operation 29 3
• Check items for service 89 4
• Part 6 service diagnosis 87 4
• Symptom based troubleshooting 91 3 troubleshooting by remote controller 94 4
• Troubleshooting by indication on the remote controller 08 4
• Example of connection r 410a type 57 5
• Option list 54 5
• Part 7 appendix 20 5
• Piping diagrams 21 5
• Wiring diagrams for reference 32 5
• Caution in repair 6
• Introduction 6
• Safety cautions 6
• Warning 6
• Caution 7
• Cautions regarding products after repair 7
• Warning 7
• Caution 8
• Inspection after repair 8
• Warning 8
• Caution 9
• Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 9
• Using icons 9
• Using icons list 9
• Part 1 general information 10
• Bs units 11
• Function unit 11
• General information 2 11
• Heat pump series bsv 4q100p 6q100p v1 11
• Indoor unit 11
• Model names of indoor outdoor units 11
• Note fxdq has following 2 series as show below fxdq pb nbve with drain pump bev unit is required for fxuq only ma rohs directive models specifications dimensions and other functions are not changed compared with m type 11
• Outdoor unit 11
• Series model name power supply 11
• Sibe311209 model names of indoor outdoor units 11
• Type model name power supply 11
• Ve 1 φ 220 240v 50hz v1 1 φ 220 240v 50hz v3 1 φ 230v 50hz y1 3 φ 380 415v 50hz 11
• Vrviii c for cold region btsq 20p y1 11
• Vrviii c for cold region rtsyq 10pa 14pa 16pa 20pa y1 11
• 600 4 way blow ceiling mounted cassette 12
• Bs units 12
• Ceiling mounted corner cassette 12
• Ceiling suspended unit 12
• Concealed ceiling unit 12
• Concealed ceiling unit large 12
• Concealed ceiling unit small 12
• Concealed floor standing unit 12
• External appearance 12
• External appearance sibe311209 12
• Floor standing unit 12
• General information 12
• Indoor units 12
• Outdoor air processing unit 12
• Round flow ceiling mounted cassette 12
• Slim concealed ceiling unit 12
• Wall mounted unit 12
• Way blow ceiling mounted cassette 12
• Way blow ceiling suspended unit connection unit series 12
• 10hp system 14hp system 13
• 16hp system 20hp system 13
• General information 4 13
• Outdoor units and function units 13
• Rtsyq10pay1 13
• Rtsyq14pay1 13
• Rtsyq16pay1 13
• Rtsyq20pay1 13
• Sibe311209 external appearance 13
• Connectable indoor unit 14
• Connectable indoor units number and capacity 14
• General information 14
• Model selection 14
• Model selection sibe311209 14
• Note fxdq has following 2 series as show below fxdq pb nbve with drain pump bev unit is required for fxuq only ma rohs directive models specifications dimensions and other functions are not changed compared with m type 14
• Vrv iii c heat pump series 14
• 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 15
• Indoor unit capacity 15
• The total capacity of connected indoor units must be within a range of 50 to 130 of the rated capacity of the outdoor unit 15
• 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 15
• At low outdoor air temperatures conventional system 16
• Features of this model series 16
• Features of this model series sibe311209 16
• General information 16
• New system 16
• This is a system to conduct efficient heating operation by two stage compression with two compressors connected in series the system is designed to separate gas and liquid with the gas liquid separator incorporated in the function unit to bypass all gas refrigerants that do not contribute to evaporation to the high stage side compressor on the high stage side thus providing increased evaporator efficiency furthermore since the high stage side suction gas temperature falls radiation loss also reduces to provide increased compressor efficiency 16
• This model series feature efficient heating operation conducted by adopting the two stage compression system at low outdoor air temperatures 16
• Part 2 specifications 17
• Specifications 17
• Outdoor units 18
• Specifications 18
• Specifications sibe311209 18
• Sibe311209 specifications 19
• Specifications 10 19
• Specifications 20
• Specifications sibe311209 20
• Sibe311209 specifications 21
• Specifications 12 21
• Indoor units 22
• Round flow ceiling mounted cassette 22
• Specifications 22
• Specifications sibe311209 22
• Round flow ceiling mounted cassette 23
• Sibe311209 specifications 23
• Specifications 14 23
• Round flow ceiling mounted cassette 24
• Specifications 24
• Specifications sibe311209 24
• Sibe311209 specifications 25
• Specifications 16 25
• 600 4 way blow ceiling mounted cassette 26
• Specifications 26
• Specifications sibe311209 26
• Sibe311209 specifications 27
• Specifications 18 27
• Specifications 28
• Specifications sibe311209 28
• Way blow ceiling mounted cassette 28
• Sibe311209 specifications 29
• Specifications 20 29
• Way blow ceiling mounted cassette 29
• Specifications 30
• Specifications sibe311209 30
• Sibe311209 specifications 31
• Specifications 22 31
• Specifications 32
• Specifications sibe311209 32
• Ceiling mounted corner cassette 33
• Sibe311209 specifications 33
• Specifications 24 33
• Specifications 34
• Specifications sibe311209 34
• Sibe311209 specifications 35
• Slim concealed ceiling unit with drain pump 35
• Specifications 26 35
• Slim concealed ceiling unit with drain pump 36
• Specifications 36
• Specifications sibe311209 36
• Sibe311209 specifications 37
• Slim concealed ceiling unit with drain pump 37
• Specifications 28 37
• Specifications 38
• Specifications sibe311209 38
• Concealed ceiling unit small 39
• Sibe311209 specifications 39
• Specifications 30 39
• Specifications 40
• Specifications sibe311209 40
• Concealed ceiling unit 41
• Sibe311209 specifications 41
• Specifications 32 41
• Concealed ceiling unit 42
• Specifications 42
• Specifications sibe311209 42
• Concealed ceiling unit 43
• Sibe311209 specifications 43
• Specifications 34 43
• Concealed ceiling unit 44
• Specifications 44
• Specifications sibe311209 44
• Concealed ceiling unit 45
• Sibe311209 specifications 45
• Specifications 36 45
• Specifications 46
• Specifications sibe311209 46
• Sibe311209 specifications 47
• Specifications 38 47
• Concealed ceiling unit large 48
• Specifications 48
• Specifications sibe311209 48
• Sibe311209 specifications 49
• Specifications 40 49
• Ceiling suspended unit 50
• Specifications 50
• Specifications sibe311209 50
• Sibe311209 specifications 51
• Specifications 42 51
• Specifications 52
• Specifications sibe311209 52
• Wall mounted unit 52
• Sibe311209 specifications 53
• Specifications 44 53
• Wall mounted unit 53
• Floor standing unit 54
• Specifications 54
• Specifications sibe311209 54
• Floor standing unit 55
• Sibe311209 specifications 55
• Specifications 46 55
• Concealed floor standing unit 56
• Specifications 56
• Specifications sibe311209 56
• Concealed floor standing unit 57
• Sibe311209 specifications 57
• Specifications 48 57
• Specifications 58
• Specifications sibe311209 58
• Way blow ceiling suspended unit 58
• Bev units 59
• Sibe311209 specifications 59
• Specifications 50 59
• Way blow ceiling suspended unit 59
• Outdoor air processing unit 60
• Specifications 60
• Specifications sibe311209 60
• Bs units 61
• Sibe311209 specifications 61
• Specifications 52 61
• Functional parts layout 4 62
• Part 3 refrigerant circuit 62
• Refrigerant circuit 4 62
• Refrigerant flow for each operation mode 8 62
• Refrigerant circuit 63
• Refrigerant circuit 54 63
• Rtsq8pay1 63
• Sibe311209 refrigerant circuit 63
• C 3d076297 64
• Refrigerant circuit 64
• Refrigerant circuit sibe311209 64
• Rtsq8pay1 64
• Subcooling heat exchanger 64
• Refrigerant circuit 56 65
• Rtsq10pay1 12pay1 65
• Sibe311209 refrigerant circuit 65
• C 3d076295 for rtsq10pay1 c 3d076298 for rtsq12pay1 66
• Inv std1 66
• Refrigerant circuit 66
• Refrigerant circuit sibe311209 66
• Rtsq10pay1 12pay1 66
• Subcooling heat exchanger 66
• Refrigerant circuit 58 67
• Rtsq14pay1 16pay1 67
• Sibe311209 refrigerant circuit 67
• C 3d076296 68
• Inv std1 std2 68
• Refrigerant circuit 68
• Refrigerant circuit sibe311209 68
• Rtsq14pay1 16pay1 68
• Subcooling heat exchanger 68
• Bs unit functional parts 69
• Bsv4q100pv1 6q100pv1 69
• Indoor side 69
• Outdoor side 69
• Btsq20p 70
• Function unit 70
• Fxcq fxfq fxzq fxkq fxdq fxsq fxmq fxhq fxaq fxlq fxnq 71
• Indoor units 71
• Fxmq125mfv1 250mfv1 72
• Main control equipment 72
• Sh control superheated control of heat exchanger outlet sc control subcooling control of heat exchanger outlet 72
• Thermistor 72
• Front view 73
• Functional parts layout 73
• Refrigerant circuit 64 73
• Rtsq8pay1 73
• Sibe311209 functional parts layout 73
• Front view 74
• Functional parts layout sibe311209 74
• Refrigerant circuit 74
• Rtsq10pay1 12pay1 74
• Front view 75
• Refrigerant circuit 66 75
• Rtsq14pay1 16pay1 75
• Sibe311209 functional parts layout 75
• Btsq20py1 76
• Front view 76
• Functional parts layout sibe311209 76
• Refrigerant circuit 76
• Refrigerant circuit 68 77
• Refrigerant flow for each operation mode 77
• Rtsyq10pa 14pa 16pa cooling operation 77
• Sibe311209 refrigerant flow for each operation mode 77
• 1 normal opening on forced thermostat on 78
• Btsq20p 78
• Cooling oil return operation 78
• For any of rtsq10pa 14pa 16pa 78
• High pressure gas high pressure liquid 78
• Indoor unit 78
• Low pressure liquid gas 78
• Operation switch on cooling operation switch on cooling operation switch off cooling thermostat on thermostat off 78
• Refrigerant circuit 78
• Refrigerant flow for each operation mode sibe311209 78
• The figure above shows the refrigerant flow for rtsq14pa 16pa rtsq10pa has 2 compressors 78
• Btsq20p 79
• For any of rtsq10pa 14pa 16pa 79
• Heating operation normal 79
• High pressure gas high pressure liquid low pressure liquid gas 79
• Indoor unit 79
• Operation switch on heating operation switch on heating operation switch off heating 79
• Refrigerant circuit 70 79
• Sibe311209 refrigerant flow for each operation mode 79
• The figure above shows the refrigerant flow for rtsq14pa 16pa rtsq10pa has 2 compressors 79
• Thermostat on thermostat off 79
• Btsq20p 80
• For any of rtsq10pa 14pa 16pa 80
• Heating operation at low outdoor air temperature 80
• High pressure gas high pressure liquid 80
• Indoor unit 80
• Intermediate pressure gas 80
• Intermediate pressure liquid 80
• Low pressure liquid gas 80
• Operation switch on heating operation switch on heating operation switch off heating 80
• Refrigerant circuit 80
• Refrigerant flow for each operation mode sibe311209 80
• The figure above shows the refrigerant flow for rtsq14pa 16pa rtsq10pa has 2 compressors 80
• Thermostat on thermostat off 80
• 2 oil return defrost ev opening 81
• Btsq20p 81
• For any of rtsq10pa 14pa 16pa 81
• Heating oil return defrost operation normal 81
• High pressure gas high pressure liquid low pressure liquid gas 81
• Indoor unit 81
• Operation switch on heating operation switch on heating operation switch off heating 81
• Refrigerant circuit 72 81
• Sibe311209 refrigerant flow for each operation mode 81
• The figure above shows the refrigerant flow for rtsq14pa 16pa rtsq10pa has 2 compressors 81
• Thermostat on thermostat off 81
• 2 oil return defrost ev opening 82
• Btsq20p 82
• For any of rtsq10pa 14pa 16pa 82
• Heating oil return defrost operation at low outdoor air temperature 82
• High pressure gas high pressure liquid 82
• Indoor unit 82
• Intermediate pressure gas 82
• Intermediate pressure liquid 82
• Low pressure liquid gas 82
• Operation switch on heating operation switch on heating operation switch off heating 82
• Refrigerant circuit 82
• Refrigerant flow for each operation mode sibe311209 82
• The figure above shows the refrigerant flow for rtsq14pa 16pa rtsq10pa has 2 compressors 82
• Thermostat on thermostat off 82
• Btsq20p 83
• High pressure gas high pressure liquid low pressure liquid gas 83
• Indoor unit 83
• Operation switch on cooling operation switch on cooling operation switch off cooling 83
• Refrigerant circuit 74 83
• Rtsq12pa 83
• Rtsq8pa 83
• Rtsyq20pa cooling operation 83
• Sibe311209 refrigerant flow for each operation mode 83
• Thermostat on thermostat off 83
• 1 normal opening on forced thermostat on 84
• Btsq20p 84
• Cooling oil return operation 84
• High pressure gas high pressure liquid low pressure liquid gas 84
• Indoor unit 84
• Operation switch on cooling operation switch on cooling operation switch off cooling 84
• Refrigerant circuit 84
• Refrigerant flow for each operation mode sibe311209 84
• Rtsq12pa 84
• Rtsq8pa 84
• Thermostat on thermostat off 84
• Btsq20p 85
• Heating operation normal 85
• High pressure gas high pressure liquid low pressure liquid gas 85
• Indoor unit 85
• Operation switch on heating operation switch on heating operation switch off heating 85
• Refrigerant circuit 76 85
• Rtsq12pa 85
• Rtsq8pa 85
• Sibe311209 refrigerant flow for each operation mode 85
• Thermostat off 85
• Thermostat on 85
• Btsq20p 86
• Heating operation at low outdoor air temperature 86
• High pressure gas high pressure liquid 86
• Indoor unit 86
• Intermediate pressure gas 86
• Intermediate pressure liquid 86
• Low pressure liquid gas 86
• Operation switch on heating 86
• Operation switch on heating operation switch off heating 86
• Refrigerant circuit 86
• Refrigerant flow for each operation mode sibe311209 86
• Rtsq12pa 86
• Rtsq8pa 86
• Thermostat off 86
• Thermostat on 86
• 2 oil return defrost ev opening 87
• Btsq20p 87
• Heating oil return defrost operation normal 87
• High pressure gas high pressure liquid low pressure liquid gas 87
• Indoor unit 87
• Operation switch on cooling 87
• Operation switch on cooling operation switch off cooling 87
• Refrigerant circuit 78 87
• Rtsq12pa 87
• Rtsq8pa 87
• Sibe311209 refrigerant flow for each operation mode 87
• Thermostat off 87
• Thermostat on 87
• 2 oil return defrost ev opening 88
• Btsq20p 88
• Heating oil return defrost operation at low outdoor air temperature 88
• High pressure gas high pressure liquid 88
• Indoor unit 88
• Intermediate pressure gas intermediate pressure liquid 88
• Low pressure liquid gas 88
• Operation switch on heating operation switch on heating operation switch off heating 88
• Refrigerant circuit 88
• Refrigerant flow for each operation mode sibe311209 88
• Rtsq12pa 88
• Rtsq8pa 88
• Thermostat on thermostat off 88
• Function general 2 89
• Normal operation 0 89
• Outline of control indoor unit 14 89
• Part 4 function 89
• Protection control 8 89
• Rotation control 6 89
• Special control 05 89
• Standby 5 89
• Startup control 7 89
• Stopping operation 4 89
• Function general 91
• Operation modes 91
• Symbol 92
• Both master units and slave units all stop according to the following contents 93
• In order to protect compressors if abnormal conditions occur the system will make stop with thermostat off and the error will be determined according to the number of retry times refer to p 02 203 list of error code in part 6 service diagnosis about the items of error decision 93
• Operation by which this error is determined the system makes a stop and the remote controller displays the relevant error code 93
• Stop due to error 93
• Stopping operation 93
• When system is in stop mode 93
• Crankcase heater control 94
• 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 94
• Restart standby 94
• Standby 94
• This function is used to forcedly turn off the thermostat for a period of 2 minutes after a compressor stops running in order to prevent the frequent on off operations of the compressor and equalize pressure in the refrigerant circuit furthermore the outdoor unit fan continues residual operation for a while to facilitate pressure equalization and prevent the stay of refrigerant in evaporator 94
• Each compressor operates in the following order of priority inv inverter compressor std1 standard compressor 1 std2 standard compressor 2 95
• In order to make operating time equal for each compressor of multi connection outdoor units outdoor units are used in rotation 95
• Operating priority and rotation of compressors 95
• Rotation control 95
• Rotation of outdoor units 95
• Rotation of outdoor units system with two outdoor units 95
• System with one outdoor unit 95
• System with two outdoor units used in 2 patterns of rotation operation as shown in the following 95
• Timing of outdoor rotation in start of startup control 95
• Startup control 96
• Startup control in cooling operation 96
• 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 liquid refrigerant 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 startup 96
• Startup control in heating operation 97
• Startup control of function unit only for heating operation at low outdoor air temperature 98
• 1 refer to 6 electronic expansion valve pi control on p 4 99
• Function unit 99
• Indoor unit 99
• List of functions in normal operation 99
• Normal operation 99
• Outdoor unit 99
• 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 100
• Compressor control 100
• Compressor pi control 100
• Cooling operation 100
• Heating operation 100
• Pc value detected by the high pressure sensor of the function unit mpa pm value detected by the high pressure sensor of the outdoor unit mpa pe value detected by the low pressure sensor of the outdoor unit mpa 100
• Ph high stage side compression ratio pc pm low stage side compression ratio pm pe 100
• Target value of ph phs 0 to 2 100
• This function is used to conduct the same control as that for heating operation aforementioned 100
• This function is used to control the compressor capacity so that the ratio ph of the high stage side compression ratio to the low stage side compression ratio will come to the target value 100
• Compressor operations vary with the following steps according to information in 6 compressor pi control 101
• Compressor step control 101
• Function 92 101
• Rtsyq10pa 101
• Rtsyq14 16pa 101
• Sibe311209 normal operation 101
• Btsq20p 102
• Function 102
• Function unit 102
• Normal operation sibe311209 102
• 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 depending on the operating conditions of compressors the compressors may run in patterns other than those aforementioned 102
• Rtsyq20pa 102
• Electronic expansion valve of function unit 103
• Electronic expansion valve of outdoor unit 103
• Electronic expansion valve pi control 103
• Control for cooling operation at low outdoor air temperature 104
• Figures listed above are all those controlled while in standard mode which vary when the system is set to high static pressure or capacity priority mode 104
• For cooling operation at low outdoor air temperature this function is used to conduct high pressure control on the outdoor unit fan to secure liquid pressure thus providing an adequate circulation airflow rate to the indoor unit 104
• Outdoor unit fan control 104
• Step control of outdoor unit fans 104
• Used to control the revolutions of outdoor unit fans in the steps listed in table below according to condition changes 104
• Control for heating operation at low outdoor air temperature 105
• To conduct optimal heating operation the two operation modes two stage compression and single stage compression are available according to outdoor air temperatures and loads 105
• Discharge of refrigerant when the indoor unit operates at high load the solenoid valve y7s will be energized to discharge refrigerant from the refrigerant regulator 106
• Equalizing pipe 106
• Function 106
• Liquid pipe 106
• Normal operation sibe311209 106
• Pressure regulating valve refrigerant regulator when all solenoid valves y1s y4s and y7s are deenergized a closed circuit will be set up to avoid that relieve pressure raised by the refrigerant regulator to the liquid refrigerant piping side 106
• Recovery of refrigerant when the indoor unit operates at low load the solenoid valves y1s and y4s will be energized to recover excess refrigerant to the refrigerant regulator 106
• Refrigerant flow rate control 106
• Suction gas pipe 106
• High pressure protection control 107
• In cooling operation the following control is performed in each outdoor unit and function unit 107
• Protection control 107
• 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 107
• In heating operation 108
• In cooling operation for systems with multi outdoor units the control shown below is conducted on the whole system 109
• Low pressure protection control 109
• This function is used to conduct low pressure protection control on outdoor units in order to protect compressors from transient drops in low pressure 109
• For systems with multi outdoor units the control shown below is conducted by outdoor unit 110
• In heating operation 110
• Discharge pipe protection control 111
• Inv compressor the following control is performed for each compressor of outdoor and function unit 111
• Std compressor for systems with multi outdoor units the control shown below is conducted by outdoor unit 111
• This discharge pipe protection control is used to protect the compressor internal temperature against an error or transient increase of discharge pipe temperature this control is performed by each compressor 111
• In the case of multi outdoor unit system each inv compressor performs these controls in the following sequence 112
• Inverter current protection control and radiation fin temperature control are performed to prevent tripping due to an error or transient inverter overcurrent and fin radiation temperature increase 112
• Inverter overcurrent protection control 112
• Inverter protection control 112
• Radiation fin temperature control 112
• This control is conducted by each inv compressor 112
• Cooling fan control for radiation fin temperature of function unit 113
• Heater control for function unit switch box 113
• Std compressor overload protection 113
• The heater e2hc places to the function unit switch box to prevent freezing by low outdoor air temperature and it is controlled as follows by the outdoor air temperature 113
• This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of std compressor such as locking 113
• When the radiation fin temperature of function unit rises it is cooled with the fan m1f as follows 113
• 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 114
• Pump down residual operation 114
• Pump down residual operation in cooling operation outdoor unit 114
• Special control 114
• Function unit only applicable to heating operation at low outdoor air temperature 115
• Pump down residual operation in heating operation outdoor unit 115
• 1 in case of multi outdoor unit system master unit it conducts the operation listed in the table above slave units operating units conduct the operation listed in the table above non operating units conduct the operation listed in the table above after the oil returning process non operating units stop while in preparation mode 116
• Cooling oil return operation 116
• Oil return operation 116
• This function is used to recover refrigerant oil that flows out from the compressor to the system side by conducting oil return operation in order to prevent the compressor from running out of refrigerant oil 116
• State of function units is same as cooling operation of 6 function unit p 0 117
• Heating oil return operation 118
• 1 in case of multi outdoor unit system master unit it conducts the operation listed in the table above slave units operating units conduct the operation listed in the table above non operating units conduct the operation listed in the table above after the oil returning process non operating units stop while in preparation mode 119
• Defrost operation 120
• Execute the defrost operation to recover the heating capacity by melting frost attached on the outdoor unit heat exchanger during heating operation 120
• Emergency operation 122
• Function 114 123
• Operation flow chart 123
• Outline of control indoor unit 123
• Sibe311209 outline of control indoor unit 123
• Function 124
• Outline of control indoor unit sibe311209 124
• 1 the simplified remote controller brc2c51 incorporates a remote control thermostat 2 the remote controller setting 10 20 is displayed as 2 01 use for group control however it is automatically changed to not use of remote control thermostat remark for the skyair series factory setting is made to only using suction air thermistor 125
• The thermostat control for vrv multi system is available in the 3 patterns shown below 1 using suction air thermistor body thermostat and remote control thermistor in combination factory setting for vrv multi system the suction air thermistor body thermostat of indoor unit and the thermistor of remote controller brc1c62 are used in combination to control room temperatures for the operating ranges of thermistors refer to information on the following page 2 only using suction air thermistor body thermostat if the remote control thermistor is unable to sample room temperatures it will be needed to make a change to the thermistor selection from remote control thermistor suction air thermistor to suction air thermistor by the use of field setting mode of the remote controller for control without using a remote controller such as group control the system will be changed to control only using the suction air thermistor 3 replacing suction air thermistor with remote sensor if the suction air t 125
• Thermostat control 125
• Thermostat control for vrv multi system 125
• Room temperature thermistor in remote controller 126
• And assuming suction air temperature has changed from 28 c to 18 c d a room temperature thermistor in remote controller is used for temperatures from 28 c to 23 c d b suction air thermistor in indoor unit is used for temperatures from 23 c to 18 c b a 127
• Ex when heating assuming the set temperature in the figure is 24 c or more and the suction air temperature has changed from 18 c to 28 c a d this example also assumes there are several other air conditioners the vrv system is off and that temperature changes even when the room temperature thermistor is off suction air thermistor in indoor unit is used for temperatures from 18 c to 25 c a c room temperature thermistor in remote controller is used for temperatures from 25 c to 28 c c d 127
• Function 118 127
• Heating when heating the hot air rises to the top of the room resulting in the temperature being lower near the floor where the occupants are when controlling by suction air thermistor in indoor unit only the unit may therefore be turned off by the thermostat before the lower part of the room reaches the set temperature the temperature can be controlled so the lower part of the room where the occupants are does not become cold by widening the range in which room temperature thermistor in remote controller can be used so that suction air temperature is higher than the set temperature 127
• Sibe311209 outline of control indoor unit 127
• 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 128
• Function 128
• Furthermore while in dry operation mode fans operate at l flow rate stops for a period of 6 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 temperature while in thermostat off mode 128
• Outline of control indoor unit sibe311209 128
• Thermostat control in dry operation 128
• Thermostat control while in normal operation 128
• 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 setting 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 128
• While in a single remote controller group control the body thermostat is only used for 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 128
• While in dry operation the thermostat control is conducted according to suction air temperature at the time of starting the dry operation 128
• 02 03 04 05 06 07 08 129
• 4 differential value while in auto operation mode 0 c 1 c 2 c 3 c 4 c 5 c 6 c 7 c 129
• Cooling thermostat on cooling thermostat off 129
• Differential value 0 c 129
• Differential value set to 1 c 129
• Differential value set to 2 c 129
• Differential value set to 3 c 129
• Differential value set to 4 c 129
• Differential value set to 5 c 129
• Differential value set to 6 c 129
• Differential value set to 7 c 129
• Ex when automatic cooling temperature is set to 27 c 129
• Factory setting 129
• Function 120 129
• Heating thermostat off heating thermostat on 129
• Mode no first code no contents of setting second code no 129
• Set cooling temperature a c 129
• Set heating temperature a d c d c 129
• Sibe311209 outline of control indoor unit 129
• Thermostat control with operation mode set to auto 129
• When the operation mode is set to auto on the remote controller the system will conduct the temperature control shown below furthermore setting changes of the differential value d c can be made according to information in the field settings with remote controller p 46 and later section 129
• 1 normal operation the objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 2 error residual the remote controller will display 130
• 3 error residual the remote controller will display 130
• And the air conditioner will come to an abnormal stop if the float switch is turned off and not turned on again within 5 minutes while the cooling thermo is off 130
• And the air conditioner will come to an abnormal stop in 5 minutes if the float switch is turned off while the cooling thermo is on 130
• Drain pump control 130
• The drain pump is controlled by the on off buttons 4 button 1 4 given in the figure below 130
• When the float switch is tripped while the cooling thermostat is off 130
• When the float switch is tripped while the cooling thermostat is on 130
• 4 error residual if the float switch is tripped 5 times in succession a drain error is determined to have occurred 131
• And the air conditioner will come to an abnormal stop if the float switch is off for more than 5 minutes in the case of 4 131
• Function 122 131
• Is then displayed as operation continues 5 error residual the remote controller will display 131
• Sibe311209 outline of control indoor unit 131
• When the float switch is tripped and af is displayed on the remote controller 131
• 6 while in operation with thermostat on the drain pump repeats 20 min off and 3 min on operation 7 if the float switch is activated the drain pump will conduct residual operation for a period of 5 minutes 8 if the thermostat turns off the drain pump will conduct residual operation for a period of 20 minutes 132
• 9 if the thermostat turns off the drain pump will conduct residual operation for a period of 20 minutes regardless of its operating status 10 if the float switch is not reset within a period of 5 minutes after it is activated the remote controller will display the error code 132
• And the system will make a stop due to error 132
• Float switch activation 1 etc 132
• Float switch activation 2 etc 132
• Function 132
• If a humidifier is connected and the drain pump humidifier interlock parameter is set to enabled while in filed setting mode the following control will be conducted 132
• Outline of control indoor unit sibe311209 132
• Conditions for starting when airflow direction is two way or three way conditions for starting temperature is 1ºc or less for a total of 15 minutes or 0ºc or less for 1 minute continuously 133
• Freeze up prevention 133
• Freeze up prevention by off cycle indoor unit 133
• Function 124 133
• Sibe311209 outline of control indoor unit 133
• When freeze up prevention is activated the electronic expansion valve is closed the drain pump turns on and the fan tap is fixed to l airflow when the following conditions for stopping are satisfied it returns conditions for starting freeze up prevention temperature is 1 c or less for total of 40 min or temperature is 5 c or less for total of 10 min conditions for stopping freeze up prevention temperature is 7 c or more for 10 min continuously 133
• When the temperature detected by liquid pipe temperature thermistor r2t of the indoor unit heat exchanger drops too low the unit enters freeze up prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below 133
• Heater control optional pcb krp1b is required 134
• 1 l or ll only on fxfq models 135
• List of swing flap operations 135
• Swing flaps operate as shown in table below 135
• Control of electronic expansion valve 136
• Outdoor unit pcb layout 45 3 field setting 46 137
• Part 5 test operation 137
• Test operation 29 137
• Below figure shows the installation process install in the order of the steps shown 138
• Check work prior to turn power supply on 138
• Follow the following procedure to conduct the initial test operation after installation 138
• Installation process 138
• Procedure and outline 138
• Test operation 138
• Refer to p 59 for the calculation of the amount of additionally refrigerant charge 139
• Be sure to turn the power on 6 hours before starting operation to protect compressors to power on crankcase heater 140
• Check the led display of the outdoor unit pcb 140
• Check to be sure the transmission is normal the transmission is normal if the leds display conditions as shown in table below 140
• Make the field settings if needed for the setting procedure refer to information in 3 field setting from outdoor unit on p 62 onward for the outdoor multi system make the field settings with the master unit field settings made with the slave unit will be all invalid 140
• Make the field settings with outdoor unit pcb 140
• Reference 140
• Test operation 140
• Test operation sibe311209 140
• The master unit is the outdoor unit to which the transmission wiring for the indoor units is connected the other outdoor units are slave units 140
• Turn outdoor unit function unit and indoor unit power on 140
• Turn power on 140
• Bs button bs1 bs5 141
• Dip switch ds1 1 1 4 141
• Dip switch ds2 1 2 4 141
• Inside of the switch box 141
• Led lamp h1p h8p 141
• Micro computer normal monitor hap 141
• Sibe311209 test operation 141
• Switch box cover 141
• Test operation 132 141
• Additional refrigerant charge procedure 142
• Additional charging of refrigerant 143
• Connection of devices for refrigerant charge 143
• Automatic refrigerant charging operation 144
• H h k h h h h 144
• K k k k k k k 144
• H l h h h h k 145
• L l h h h k h 145
• L l h h h k k 145
• L l h h k h k 145
• L l l k k k k 145
• H l h h h h k 146
• H l h h h k h 146
• H l h h h k k 146
• L l l h k h k 146
• K l l k k k k 147
• L l l k k k k 147
• K h h k k k h 149
• Procedure for inputting the additional refrigerant charge weight into the pcb 149
• K h h h h h h 150
• K h h h h h k 150
• K h h h h k h 150
• K h h h h k k 150
• K h h h k h h 150
• K h h h k h k 150
• K h h h k k h 150
• K h h h k k k 150
• K h h k h h h 150
• K h h k h h k 150
• K h h k h k h 150
• K h h k h k k 150
• K h h k k h h 150
• K h h k k h k 150
• K h h k k k h 150
• K h h k k k k 150
• K h k h h h h 150
• K h k h h h k 150
• K h k h h k h 150
• K h k h h k k 150
• K h k h k h h 150
• K h k h k h k 150
• Note if you get confused in the middle of the input process press the bs1 mode button to return to setting mode 1 initial state the h1p led is off 150
• Perform a check operation as described in 1 check operation on p 43 150
• Possible led combinations in function of weight of additional refrigerant charge x to input 150
• Resume the input procedure from step 2 onwards 150
• Return to setting mode 1 initial state by pressing the bs1 mode button 150
• Test operation 150
• Test operation sibe311209 150
• Remaining refrigerant charging method 151
• Check operation 152
• K h h h h h l 152
• K h h h h k k 152
• K h h h h l h 152
• Procedure of check operation 152
• After correcting the abnormality press the bs3 return button and reset the error code 153
• Carry out the test operation again and confirm that the abnormality is properly corrected 153
• Confirm the error code on the remote controller 153
• Correcting after abnormal completion of the check operation the test operation is only completed if there is no error code displayed on the remote controller in case of a displayed error code perform the following actions to correct the abnormality 153
• During the test operation it is not possible to stop the unit operation from a remote controller to abort the operation press the bs3 return button the unit will stop after 30 seconds 6 close the front panel in order to let it not be the cause of misjudgement 7 check the test operation results by the led display on the outdoor unit 153
• During the test operation the refrigerant running sound or the magnetic sound of a solenoid valve may become loud and the led display may change but these are not errors 153
• E3 e4 f3 f6 uf 153
• E3 f6 uf 153
• H h k h h h h 153
• H k k h h h h 153
• It may take 10 minutes to bring the state of the refrigerant uniform before the compressor starts 153
• Lc u1 u4 153
• The test operation is automatically carried out in cooling mode the h2p led will light up and the messages test operation and under centralized control will display on the remote controller 153
• When the test operation is fully completed normal operation will be possible after 5 minutes otherwise refer to correcting after abnormal completion of the check operation on p 44 to take actions for correcting the abnormality 153
• After all installation works are completed operate the unit normally and check the following 154
• Check if cold or hot air is coming out from the indoor unit 154
• Check in normal operation 154
• Heating is not possible if the outdoor air temperature is 24 c or higher refer to the operation manual 154
• If a knocking sound is heard in the liquid compression of the compressor stop the unit immediately and then energize the crankcase heater for a sufficient length of time before restarting the operation 154
• Make sure the indoor units and outdoor unit are operating normally 154
• Once stopped the compressor will not restart in about 5 minutes even if the on off button on the remote controller is pressed 154
• Operate each indoor unit separately and make sure the corresponding outdoor unit is also operating properly 154
• Outdoor unit pcb 154
• Outdoor unit pcb layout 154
• Press the fan direction and fan strength buttons on the remote controller to check if they are operating properly 154
• The outdoor unit fan may rotate at low speeds in the low night noise setting or the external low noise level setting is made but this is not an error 154
• When the system operation is stopped by the remote controller the outdoor unit may continue operation for a maximum of 5 minutes 154
• Field setting 155
• Field setting from remote controller 155
• Caution 156
• Wireless remote controller indoor unit 157
• 7 4 5 6 2 8 158
• Simplified remote controller 158
• 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 ventilator fan conducts the fan residual operation by linking to indoor unit 7 the fxmq50 63 80 100 125 140pve cannot be set to 30pa the fxmq20 25 32 40pve cannot be set to 180 or 200pa 159
• Note 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 setting 4 do not make settings other than those described above nothing is displayed for functions the indoor unit is not equipped with 5 159
• Setting contents and code no for indoor units 159
• Sibe311209 field setting 159
• Test operation 150 159
• 1 static pressure selection 160
• Applicable range of field setting 160
• Field setting sibe311209 160
• Test operation 160
• 1 filter sign setting if switching the filter sign on time set as given in the table below set time 161
• 2 ultra long life filter sign setting when a ultra long life filter is installed the filter sign timer setting must be changed 161
• 3 selection of thermistor select the thermistor to control room temperature 161
• 4 filter cleaning displayed or not displayed whether or not to display filter cleaning after operation of certain duration can be selected 161
• 5 airflow adjustment auto 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 setting change the second code no as shown in table according to the external static pressure of the duct to be connected 161
• Detailed explanation of setting modes 161
• Setting table 161
• The factory setting for the second code no is 01 and room temperature is controlled by the indoor unit suction air thermistor and room temperature thermistor in remote controller 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 room temperature thermistor in remote controller 161
• 10 setting of operation mode to auto this setting makes it possible to change differential values for mode selection while in automatic operation mode 162
• 6 optional output switching using this setting operation output signal and abnormal output signal can be provided output signal is output between x1 x2 terminals of adaptor for wiring an optional accessory 162
• 7 external on off input this input is used for on off operation and protection device input from the outside the input is performed from the t1 t2 terminal of the operation terminal block in the el compo box 162
• 8 thermostat switching differential value during thermostat on off control can be changed for details refer to 9 thermostat control on p 16 162
• 9 airflow setting when heating thermostat is off this setting is used to set airflow when heating thermostat is off when thermostat off airflow 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 162
• Setting table 162
• The automatic operation mode setting is made by the use of the operation mode selector button 162
• 11 auto restart after power failure reset 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 same as factory 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 163
• 12 airflow when cooling thermostat is off this is used to set airflow to ll airflow when cooling thermostat is off 163
• 13 setting of normal airflow make the following setting according to the ceiling height the second code no is set to 01 at the factory 163
• 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 163
• 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 163
• In the case of fxaq 163
• In the case of fxfq25 80 all round outlet 163
• In the case of fxhq 163
• 14 airflow direction setting set the airflow direction of indoor units as given in the table below set when sealing material kit of air discharge outlet has been installed the second code no is factory setting to 01 164
• In the case of fxfq100 125 164
• In the case of fxfq100 125 all round outlet 164
• In the case of fxfq25 80 164
• In the case of fxuq71 125 164
• Note 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 4 direction part of corner closed off 3 direction and 2 direction outlets see the installation manual supplied with the separately sold sealing material kit 164
• Setting table 164
• Way 3 way 2 way outlets 164
• 15 operation of downward flow flap yes no 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 165
• 16 setting of airflow direction adjustment range make the following airflow direction setting according to the respective purpose 165
• 17 setting of the static pressure selection 165
• 18 external static pressure settings for fxmq model 165
• In the case of fxdq 165
• Setting table 165
• Some indoor unit models are not equipped with draft prevention upward function 165
• The second code no is set to 07 an external static pressure of 100 pa at factory setting 1 the fxmq50 63 80 100 125 140pve cannot be set to 30 pa 2 the fxmq20 25 32 40pve cannot be set to 180 or 200 pa 165
• 19 humidification when heating thermostat is off setting to humidification setting turns on the humidifier if suction air temperature is 20ºc or above and turns off the humidifier if suction air temperature is 18ºc or below when the heating thermostat is off 166
• 20 setting of direct duct connection this is used when fresh air intake kit equipped with fan is connected the indoor unit fan carries out residual operation for 1 minute after the thermostat is stopped for the purpose of preventing dust on the air filter from falling off 166
• 21 interlocked operation between humidifier and drain pump this is used to interlock the humidifier with the drain pump when water is drained out of the unit this setting is unnecessary 166
• 22 individual setting of ventilation this is set to perform individual operation of heat reclaim ventilator using the remote controller central unit when heat reclaim ventilator is built in switch only when heat reclaim ventilator is built in 166
• Brc1e type in order to conduct the centralized remote control using the central remote controller and the unified on off controller group no settings should be made by group using the operating remote controller make group no settings for centralized remote control using the operating remote controller 167
• Centralized control group no setting 167
• For setting group no of heat reclaim ventilator and wiring adaptor for other air conditioners etc refer to the operation manual attached 167
• For wireless remote controller see the following 167
• Notice enter the group no and installation place of the indoor unit into the attached installation table be sure to keep the installation table with the operation manual for maintenance 167
• Contents of control modes 169
• Setting of operation control mode from remote controller field setting 169
• Centra 170
• Central 170
• 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 170
• How to select operation mode 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 170
• Field setting from outdoor unit 171
• Function setting 171
• 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 p 74 onward 171
• For setting items of 1 refer to detailed information provided on p 83 onward 172
• Service setting 172
• Caution 173
• Dip switch detail 173
• Dip switch setting after changing the main pcb a1p to spare pcb after the replacement by the spare pcb be sure to make settings shown below when you change the main pcb a1p to spare pcb please carry out the following setting 173
• Initial conditions of dip switches 173
• Make the following settings according to models of outdoor units all models are set to off at factory 173
• Refer ds1 1 4 ds2 1 4 setting detail on next page 173
• Setting by dip switches 173
• Using dip switches on the pcb enables field setting shown below however make no changes of factory settings except for ds1 1 173
• Btsq20py1 e set ds2 1 and ds2 3 to on 174
• Detail of ds1 1 4 ds2 1 4 setting for overseas general 174
• Field setting sibe311209 174
• Heat pump 10hp rtsq10pay1 set ds2 1 ds2 2 and ds2 3 to on 174
• Heat pump 12hp rtsq12pay1 set ds2 1 and ds2 4 to on 174
• Heat pump 14hp rtsq14pay1 set ds2 1 ds2 2 and ds2 4 to on 174
• Heat pump 16hp rtsq16pay1 set ds2 1 ds2 3 and ds2 4 to on 174
• Heat pump 8hp rtsq8pay1 set ds2 1 and ds2 3 to on 174
• Test operation 174
• Unit setting method represents the position of switches 174
• Factory setting 175
• H h h h h h h l 175
• H h k h h h h h 175
• H h k h h h h k 175
• Mode changing procedure 1 175
• Mode changing procedure 2 175
• Monitor mode h1p blinks used to check the program made in setting mode 2 175
• Setting by bs button 175
• Setting mode 1 h1p off initial status when normal used to select the cool heat setting also indicates during abnormal low noise control and demand control 175
• Setting mode 2 h1p on used to modify the operating status and to set program addresses etc usually used in servicing the system 175
• The following settings are made by bs button on pcb in case of multi outdoor unit system various items should be set with the master unit setting with the slave unit is disabled the master unit and slave unit can be discriminated with the led display as shown below 175
• There are the following three setting modes 175
• A setting mode 1 176
• Field setting sibe311209 176
• Procedure for changing cool heat selection setting 176
• Test operation 176
• 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 setting 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 176
• B setting mode 2 177
• The numbers in the no column represent the number of times to press the set bs2 button 177
• The numbers in the no column represent the number of times to press the set bs2 button 178
• 1 set cool heat separately for each outdoor unit system by indoor unit remote controller 183
• Cool heat mode switching 183
• For the details refer to the installation manual supplied together with the indoor unit 183
• In the case of wired remote controllers 183
• In the case of wireless remote controllers 183
• It does not matter whether or not there is outdoor outdoor unit wiring 183
• Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller 183
• Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller 183
• Set cool heat separately for each outdoor unit system by indoor unit remote controller 183
• Set cool heat switching to ind individual for setting mode 1 factory setting 183
• Set outdoor unit pcb ds1 1 to in factory setting 183
• Set the master unit indoor unit having the right to select the cooling heating operation mode 183
• There are the following 3 cool heat switching modes 183
• 2 set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller 184
• Ds2 ds1 184
• Field setting sibe311209 184
• H3p h4p 184
• H3p h4p h5p 184
• In setting mode 1 set the outdoor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units 184
• Install the external control adaptor for outdoor unit on either the outdoor outdoor indoor outdoor transmission line 184
• Multi outdoor units connection 184
• Set outdoor unit pcb ds1 1 to in factory setting 184
• Set the outdoor unit external control adaptor ss1 to both factory setting or c h and ss2 to off factory setting 184
• Ss1 cn24 184
• Test operation 184
• To indoor unit 184
• 3 set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat selector 185
• Ds2 ds1 185
• H3p h4p 185
• H3p h4p h5p 185
• In setting mode 1 set the outdoor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units 185
• Install the external control adaptor for outdoor unit on either the outdoor outdoor indoor outdoor transmission line 185
• Mount the cool heat selector to the master outdoor unit for the unified control 185
• Multi outdoor units connection 185
• Set the ds1 1 on the pcb of master outdoor unit to out 185
• Set the outdoor unit external control adaptor ss1 to both factory setting or c h and ss2 to off factory setting 185
• Sibe311209 field setting 185
• Ss1 cn24 185
• Test operation 176 185
• To indoor unit 185
• To indoor unit to indoor unit 185
• Address setting for 186
• Ds2 ds1 186
• Field setting sibe311209 186
• K h h h h h h 186
• K h h h h h k 186
• K h h h h k h 186
• K h h h h k k 186
• K h h h k h h 186
• K h k k k k h 186
• K h k k k k k 186
• Khhhhhh 186
• Khhhhhk 186
• Khhhhkh 186
• Khhhhkk 186
• Set lower 5 digits with binary number no to no 1 186
• Supplementation on 2 and 3 when switching cool heat for each adaptor pcb with the use of more than one adaptor pcb set the address of the external control adaptor for outdoor unit pcb ds1 and ds2 so that it matches the unified cool heat address of outdoor unit main pcb 186
• Test operation 186
• Setting of low noise operation and demand operation 187
• Field setting sibe311209 188
• Image of operation in the case of a 188
• Image of operation in the case of a and b 188
• Image of operation in the case of b 188
• Test operation 188
• 2 setting of demand operation by connecting the external contact input to the demand input of the external control adaptor for outdoor unit optional the power consumption of unit operation can be saved suppressing the compressor operating condition 189
• A when the demand operation is carried out by external contacts with the use of the external control adaptor for outdoor unit 1 connect the external control adaptor for outdoor unit and short circuit terminal block tes1 by the external input if necessary 2 while in setting mode 2 set the setting condition for set item no 12 setting of external low noise demand operation to yes 3 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 189
• B when the normal demand operation is carried out use of the external control adaptor for outdoor unit is not required 1 while in setting mode 2 make setting of the set item no 32 setting of normal demand to demand 1 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 189
• Field setting sibe311209 190
• Image of operation in the case of a 190
• Image of operation in the case of a and b 190
• Image of operation in the case of b 190
• Test operation 190
• 3 detailed setting procedure of low noise operation and demand control 1 setting mode 1 h1p off 191
• During the setting mode 1 is displayed in low noise operation and in demand control are displayed 2 setting mode 2 h1p on 191
• In setting 1 press and hold the bs1 mode for more than 5 seconds setting mode 2 is entered and h1p lights 191
• In setting mode 2 press the bs1 mode one time setting mode 1 is entered and h1p off 191
• Press the bs1 mode one time returns to the setting mode 1 and turns h1p off 191
• Press the bs2 set several times and match the led display with the setting no you want 191
• Press the bs3 return one time and the present setting content is displayed press the bs2 set several times and match the led display with the setting content as shown on next page you want 191
• Press the bs3 return two times returns to 191
• Air tight testing procedure 192
• Setting of refrigerant recovery mode 192
• Setting of vacuuming mode 192
• 1 emergency operation by resetting the remote controller automatic backup operation if a certain outdoor unit circuit causes a failure i e the system stops operation or the indoor unit remote controller displays error the defective outdoor unit or function unit will be prohibited from running for a period of eight hours through the indoor unit remote controller setting for a period of eight hours and emergency operation will be conducted only with an operable outdoor unit emergency operation procedure if the outdoor unit or the function unit stops running due to an error reset the remote controller i e press and hold the on off button of the remote controller for a period of not less than 4 seconds detail 193
• 2 emergency operation by making outdoor unit pcb setting manual backup operation if any of the compressors stops running due to error emergency operation will be conducted only with an operable compressor or outdoor unit by setting the relevant compressor outdoor unit or function unit into operation prohibited according to the outdoor unit pcb setting 193
• Emergency operation 193
• Error codes that enable the emergency operation are as listed above 1 193
• If any of the compressors causes a failure the relevant compressor or the relevant outdoor unit will be prohibited from running and emergency operation will be conducted only with an operable compressor or outdoor unit the emergency operation can be conducted by resetting the remote controller or making outdoor unit pcb setting 193
• Set the setting item no 19 to std compressor 1 2 operation prohibited applicable to 193
• Set the setting item no 38 to master unit operation prohibited applicable to 193
• Set the setting item no 39 to slave unit operation prohibited applicable to 193
• Set the setting item no 42 to inv compressor operation prohibited applicable to 193
• The outdoor unit or the function unit in which error occurs will be prohibited from running and other outdoor units will run 193
• Applied model rtsyq10 16pa 194
• Disabling the inv compressor from operating set no 42 of setting mode 2 to disable inv compressor operation 194
• Disabling the std compressor 1 or std compressor 2 from operating set no 19 of setting mode 2 to disable std compressor 1 or 2 operation 194
• Disabling the std compressor 2 from operating rtsq14 16pa set no 19 of setting mode 2 to disable std compressor 2 operation 194
• Field setting sibe311209 194
• H h kh hh h 194
• K h hh hh h 194
• K h hh hh l 194
• K h hh hlh 194
• K h kh hk k 194
• K k hk hk h 194
• On the models rtsq14pa and 16pa if the inv compressor is set to operation prohibited only one std compressor will operate due to oil equalization on the models rtsq14pa and 16pa the std compressor 1 cannot be set to operation prohibited due to oil equalization 194
• Test operation 194
• Applied model rtsyq10 20pa set the setting item no 42 of setting mode 2 to inv compressor operation prohibited make the following setting with the function unit 195
• Applied model rtsyq20pa make disable operation setting by each outdoor unit make the following setting with the master unit setting with the slave unit will be invalidated discriminate between the master unit and the slave unit according to led displays shown below 195
• H h kh hh h 195
• H hh hh h h 195
• H hk hh h h k 195
• K h hh hh 195
• K h hh hh h 195
• K h hh hh l factory setting 195
• K h hh hlh 195
• K k hh kk h 195
• K k hh kk k 195
• K k hk hk h 195
• Sibe311209 field setting 195
• Systems with multi outdoor units cannot be set to operation prohibited by compressor if systems with multi outdoor units are set to operation prohibited as aforementioned outdoor unit rotation will not be conducted 195
• Test operation 186 195
• To prohibit the operation of master unit set the setting item no 38 of setting mode 2 to master operation prohibited 195
• To prohibit the operation of slave unit set the setting item no 39 of setting mode 2 to slave operation prohibited 195
• Check items for service 89 196
• Part 6 service diagnosis 196
• Symptom based troubleshooting 91 3 troubleshooting by remote controller 94 196
• Troubleshooting by indication on the remote controller 08 196
• Check after taking countermeasures 198
• Check items for service 198
• For troubleshooting 198
• Initial check and service diagnosis 198
• Precautions for access lid for service 198
• Precautions for service 198
• Precautions for service in el compo box 198
• Taking countermeasures 198
• After the completion of service reinstall the junction connectors to the outdoor unit fans 199
• Charge refrigerant in a liquid state 199
• Conduct air tight tests and vacuum drying without fail air tight testing pressure 4 mpa 199
• Discrimination between master unit and slave unit 1 an outdoor unit to which the indoor unit connection wiring is connected is a master unit and other outdoor units are slave unit 2 the outdoor units can be discriminated as shown in the table above according to led displays on the outdoor unit pcb a1p 199
• In order to restart service mode for test operation after interrupting or normal completion of the service mode provide intervals of not less than one minute if the service mode is restarted at no intervals of time any of the error indicating leds on the outdoor unit pcb may turn on in this case press the return bs3 if the led is still kept on reset the power supply 199
• Is displayed on the remote controller to disable normal operation 199
• Make various settings with the el compo box of the master outdoor unit settings with slave unit are invalidated 199
• Precautions for field settings 199
• Precautions for operation in service mode field setting 199
• Precautions for piping work and refrigerant charging 199
• Service diagnosis 190 199
• Sibe311209 check items for service 199
• The error code 199
• This unit uses r 410a refrigerant pay careful attention to the precautions shown below 1 use a charge hose and a gauge manifold dedicated to r 410a to withstand pressure and prevent impurities e g suniso oil from getting mixed in the refrigerant 2 to blaze be sure to blow nitrogen gas through the piping 199
• To connect the connectors refer to information of wiring diagrams on p 32 199
• Symptom based troubleshooting 200
• On power up the message connection under check please wait for a moment will be displayed on the remote controller screen then that message will disappear and the basic screen will be displayed to access a mode from the basic screen refer to the figure below when any of the operation buttons is pressed the backlight will come on and remains lit for about 30 seconds be sure to press a button while the backlight is on this does not apply to the on off button 203
• Service diagnosis 194 203
• Sibe311209 troubleshooting by remote controller 203
• The following modes can be selected by using the inspection test operation button on the remote control 203
• The inspection test button 203
• Troubleshooting by remote controller 203
• 1 checking an error or warning 204
• Explanation the following will be displayed on the screen when an error or a warning occurs during operation check the error code and take the corrective action specified for the particular model 204
• Self diagnosis by wired remote controller 204
• 2 3 4 5 6 7 8 9 a h c j e f 205
• A c e h f j l p u 9 8 7 6 5 4 205
• Self diagnosis by wireless remote controller 205
• Up button down button 205
• For details refer to the table in next page 206
• How to enter the service mode 206
• Operating the check test button on the remote controller will make it possible to obtain service data and change service setting while in service mode 206
• Remote controller service mode 206
• Select the mode no select the desired item from the service menu and then press menu enter button 2 select the item 2 select the desired unit no using the 206
• Service diagnosis 206
• Service mode operation method 206
• Troubleshooting by remote controller sibe311209 206
• Up down buttons the corresponding data will be displayed 206
• 1 f c j 208
• Inspection mode 208
• Operating the inspection test button on the remote controller will make it possible to check the error codes indoor unit model codes and outdoor unit model codes while in inspection mode 208
• Remote controller self diagnosis function 209
• Test run mode 209
• 1 checking an error or warning 210
• 2 taking corrective action 210
• Press the menu enter button to check the error code 210
• Take the corrective action specific to the model 210
• List of error code 211
• The system operates for error codes indicated in black squares however be sure to check and repair 211
• The system operates for error codes indicated in black squares however be sure to check and repair 212
• Detail description on next page 213
• Malfunction code indication by outdoor unit pcb 213
• Press the mode bs1 button and returns to setting mode 1 213
• Press the return bs3 button and switches to the initial status of monitor mode 213
• Press the return bs3 button once to display first digit of error code 213
• Press the set bs2 button and set the led display to a setting item 213
• Press the set bs2 button once to display error location 213
• Press the set bs2 button once to display master or slave 1 or slave 2 and error location 213
• Press the set bs2 button once to display second digit of error code 213
• Refer to p 72 for monitor mode 213
• Service diagnosis 204 213
• Sibe311209 troubleshooting by remote controller 213
• To enter the monitor mode press the mode bs1 button when in setting mode 1 213
• 1 defective system multi system 214
• All systems system 214
• Display 1 of error in detail 214
• Display 2 of error in detail 214
• Individual system 214
• Left hand system slave 1 214
• Master 214
• Service diagnosis 214
• Slave 2 214
• Troubleshooting by remote controller sibe311209 214
• Detail description on next page 215
• Press the mode bs1 button and returns to setting mode 1 215
• Press the return bs3 button and switches to the initial status of monitor mode 215
• Press the return bs3 button once to display first digit of error code 215
• Press the set bs2 button and set the led display to a setting item 215
• Press the set bs2 button once to display error location 215
• Press the set bs2 button once to display master or slave 1 or slave 2 and error location 215
• Press the set bs2 button once to display second digit of error code 215
• Refer to p 72 for monitor mode 215
• Service diagnosis 206 215
• Sibe311209 troubleshooting by remote controller 215
• To enter the monitor mode press the mode bs1 button when in setting mode 1 215
• All systems system 216
• Display 1 of error in detail 216
• Display 2 of error in detail 216
• Individual system 216
• Left hand system slave 1 216
• Master 216
• Multi system 216
• Service diagnosis 216
• Slave 2 216
• Troubleshooting by remote controller sibe311209 216
• Error of external protection device 217
• Troubleshooting by indication on the remote controller 217
• Indoor unit pcb defect 218
• Drain level control system s1l abnormality 219
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 220
• Service diagnosis 220
• Troubleshooting 220
• Troubleshooting by indication on the remote controller sibe311209 220
• Fan motor m1f lock overload 221
• 1 if any junction connector is provided between the connector x20a on the indoor unit pcb and the fan motor also check whether or not the junction connector is properly connected 2 all resistance measuring points and judgement criteria 222
• Are there any foreign matters around the fan 222
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 222
• Properly connect the connector 222
• Remove the foreign matters 222
• Replace the fan motor 222
• Replace the indoor unit pcb 222
• Service diagnosis 222
• Troubleshooting 222
• Troubleshooting by indication on the remote controller sibe311209 222
• Turn off the power supply and then wait for a period of 10 minutes 222
• Indoor unit fan motor abnormality 223
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 225
• Service diagnosis 216 225
• Sibe311209 troubleshooting by indication on the remote controller 225
• Troubleshooting 225
• Service diagnosis 226
• Troubleshooting by indication on the remote controller sibe311209 226
• Swing flap motor m1s abnormality 227
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 228
• Service diagnosis 228
• Troubleshooting 228
• Troubleshooting by indication on the remote controller sibe311209 228
• Electronic expansion valve abnormality dust clogging 229
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 230
• Service diagnosis 230
• Troubleshooting 230
• Troubleshooting by indication on the remote controller sibe311209 230
• Applicable models indoor units except fxfq models 231
• Defective drive of electronic expansion valve 231
• Defective indoor unit pcb 231
• Defective relay cables 231
• Electronic expansion valve coil abnormality 231
• Error decision conditions pin input for electronic expansion valve coil is abnormal when initializing micro computer 231
• Method of error detection check coil condition of electronic expansion valve by using micro computer 231
• Remote controller display 231
• Supposed causes 231
• Troubleshooting 231
• Drain level above limit 232
• Capacity determination device abnormality 233
• Heat exchanger thermistor r2t abnormality 234
• Applicable models all indoor unit models 235
• Defective indoor unit pcb 235
• Defective indoor unit thermistor r3t for gas pipe 235
• Error decision conditions when the gas pipe thermistor becomes disconnected or shorted while the unit is running 235
• Gas pipes thermistor r3t abnormality 235
• Method of error detection error detection is carried out by temperature detected by gas pipe thermistor 235
• Remote controller display 235
• Supposed causes 235
• Troubleshooting 235
• Applicable models all indoor unit models 236
• Defective indoor unit pcb 236
• Defective indoor unit thermistor r1t for suction air 236
• Error decision conditions when the suction air thermistor becomes disconnected or shorted while the unit is running 236
• Method of error detection error detection is carried out by temperature detected by suction air thermistor 236
• Suction air thermistor r1t abnormality 236
• Supposed causes 236
• Troubleshooting 236
• Applicable models fxmq p 237
• Defective indoor unit pcb 237
• Defective indoor unit thermistor r4t for discharge air 237
• Discharge air thermistor r4t abnormality 237
• Error decision conditions when the discharge air thermistor becomes disconnected or shorted while the unit is running 237
• Method of error detection error detection is carried out by temperature detected by discharge air thermistor 237
• Remote controller display 237
• Supposed causes 237
• Troubleshooting 237
• Room temperature thermistor in remote controller abnormality 238
• Pcb defect 239
• High pressure switch abnormality 240
• Refer to p 04 241
• Refer to p 15 241
• Service diagnosis 232 241
• Sibe311209 troubleshooting by indication on the remote controller 241
• Low pressure sensor abnormality 242
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 243
• Refer to p 05 243
• Refer to p 15 243
• Service diagnosis 234 243
• Sibe311209 troubleshooting by indication on the remote controller 243
• Troubleshooting 243
• Inverter compressor motor lock 244
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 245
• Refer to p 07 245
• Service diagnosis 236 245
• Sibe311209 troubleshooting by indication on the remote controller 245
• Troubleshooting 245
• Std compressor motor overcurrent lock 246
• Outdoor unit fan motor abnormality 247
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 248
• Check in the monitor mode 248
• Check the color of relay connectors 248
• Check the connection status of the connectors 248
• Correct the connection of the relay connectors 248
• Cut the power supply off and wait for 10 minutes 248
• Fan motor 1 both power supply wire and signal wire are all white 248
• Fan motor 1 relay connector or x1a x2a of fan inverter pcb 248
• Fan motor 2 both power supply wire and signal wire are red in the pcb side and white in the motor side 248
• Fan motor 2 relay connector or x1a x2a of fan pcb 248
• In the monitor mode of outdoor unit pcb 248
• Insert the connector 248
• Relay connectors have any connection error 248
• Remove the foreign substances 248
• Rtsq14 16pay1 have 2 fans check electric motor electric motor 1 or 2 corresponding to error code 248
• Service diagnosis 248
• Troubleshooting 248
• Troubleshooting by indication on the remote controller sibe311209 248
• Refer to p 19 249
• Service diagnosis 240 249
• Sibe311209 troubleshooting by indication on the remote controller 249
• Troubleshooting 249
• Electronic expansion valve coil y1e y3e abnormality 250
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 251
• Service diagnosis 242 251
• Sibe311209 troubleshooting by indication on the remote controller 251
• Troubleshooting 251
• Discharge pipe temperature abnormality 252
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 253
• Refer to p 06 253
• Refer to p 14 253
• Service diagnosis 244 253
• Sibe311209 troubleshooting by indication on the remote controller 253
• Troubleshooting 253
• Refrigerant overcharged 254
• Abnormal outdoor unit fan motor signal 255
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 256
• Service diagnosis 256
• Troubleshooting 256
• Troubleshooting by indication on the remote controller sibe311209 256
• Outdoor air thermistor r1t abnormality 257
• Applicable models outdoor unit rtsq10 16pay1 258
• Current sensor abnormality 258
• Defective compressor m2c m3c 258
• Defective current sensor a6p a7p 258
• Defective outdoor unit pcb 258
• Error decision conditions when the current value detected by current sensor becomes 5a or lower or 40a or more during std compressor operation 258
• Method of error detection error is detected according to the current value detected by current sensor 258
• Remote controller display 258
• Supposed causes 258
• Troubleshooting 258
• Discharge pipe thermistor r31t r32t r33t abnormality 259
• Heat exchanger gas pipe temperature thermistor r2t 260
• Suction pipe thermistor r8t abnormality 261
• Outdoor unit heat exchanger thermistor r4t 262
• Liquid pipe thermistor 1 r6t or r9t abnormality 263
• Liquid pipe thermistor 2 r7t abnormality 264
• Subcooling heat exchanger gas pipe thermistor r5t abnormality 265
• High pressure sensor abnormality 266
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 267
• Note 1 voltage measurement point 267
• Refer to p 15 267
• Service diagnosis 258 267
• Sibe311209 troubleshooting by indication on the remote controller 267
• Troubleshooting 267
• Applicable models outdoor unit rtsq8 16pay1 268
• Connection of high pressure sensor with wrong connection 268
• Defective connection of low pressure sensor 268
• Defective low pressure sensor system 268
• Defective outdoor unit pcb 268
• Error decision conditions when the low pressure sensor is short circuit or open circuit not less than 1 7mpa or 0 1mpa and below 268
• Low pressure sensor abnormality 268
• Method of error detection error is detected from the pressure detected by the low pressure sensor 268
• Remote controller display 268
• Supposed causes 268
• Troubleshooting 268
• Check 12 269
• Note 1 voltage measurement point 269
• Refer to p 15 269
• Service diagnosis 260 269
• Sibe311209 troubleshooting by indication on the remote controller 269
• Defective inverter pcb 270
• 1 list of inverter pcbs 271
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 271
• Refer to p 07 271
• Service diagnosis 262 271
• Sibe311209 troubleshooting by indication on the remote controller 271
• Troubleshooting 271
• Actuation of radiation fin thermal actuates above 87 c 272
• Applicable models outdoor unit rtsq8 16pay1 function unit btsq20py1 272
• Defective inverter pcb 272
• Defective radiation fin thermistor 272
• Error decision conditions when the temperature of the inverter radiation fin increases 87 c or more 272
• Inverter radiation fin temperature rise error 272
• Method of error detection fin temperature is detected by the thermistor of the radiation fin 272
• Refer to p 14 272
• Remote controller display 272
• Supposed causes 272
• Troubleshooting 272
• Applicable models outdoor unit rtsq8 16pay1 273
• Compressor startup error mechanical lock 273
• Defective compressor coil disconnected defective insulation 273
• Defective inverter pcb 273
• Error decision conditions when an excessive current flows in the power transistor instantaneous overcurrent also causes activation 273
• Method of error detection error is detected from current flowing in the power transistor 273
• Momentary overcurrent of inverter compressor 273
• Refer to p 07 273
• Remote controller display 273
• Supposed causes 273
• Troubleshooting compressor inspection 273
• Overcurrent of inverter compressor 274
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 275
• Refer to p 07 275
• Service diagnosis 266 275
• Sibe311209 troubleshooting by indication on the remote controller 275
• Troubleshooting output current check 275
• Applicable models outdoor unit rtsq8 16pay1 function unit btsq20py1 276
• Defective compressor 276
• Defective inverter pcb 276
• Error decision conditions starting the compressor does not complete 276
• Inverter compressor starting error 276
• Large pressure difference before starting the compressor 276
• Method of error detection detect the error based on the signal waveform of the compressor 276
• Remote controller display 276
• Stop valve is not opened 276
• Supposed causes 276
• Troubleshooting 276
• Wiring connection error to the compressor 276
• Refer to p 07 277
• Service diagnosis 268 277
• Sibe311209 troubleshooting by indication on the remote controller 277
• Troubleshooting 277
• Transmission error between inverter and control pcb 278
• Service diagnosis 270 279
• Sibe311209 troubleshooting by indication on the remote controller 279
• Inverter over ripple protection 280
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 281
• Service diagnosis 272 281
• Sibe311209 troubleshooting by indication on the remote controller 281
• Troubleshooting 281
• Applicable models outdoor unit rtsq8 16pay1 function unit btsq20py1 282
• Defective fan motor 282
• Defective inverter compressor 282
• Defective inverter pcb 282
• Defective inverter radiation fin thermistor 282
• Error decision conditions when the resistance value of thermistor becomes a value equivalent to open or short circuited status error is not decided while the unit operation is continued 282
• Inverter radiation fin temperature rise abnormality 282
• Method of error detection resistance of radiation fin thermistor is detected when the compressor is not operating 282
• Remote controller display 282
• Supposed causes 282
• Troubleshooting 282
• Will be displayed by pressing the inspection button 282
• Field setting abnormality after replacing main pcb or combination of pcb abnormality 283
• 2 list of fan inverter pcbs 284
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 284
• Note 1 list of compressor inverter pcbs 284
• Service diagnosis 284
• Troubleshooting 284
• Troubleshooting by indication on the remote controller sibe311209 284
• Refrigerant shortage alert 285
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 286
• Refer to p 05 286
• Refer to p 06 286
• Refer to p 15 286
• Service diagnosis 286
• Troubleshooting 286
• Troubleshooting by indication on the remote controller sibe311209 286
• Applicable models outdoor unit rtsq8 16pay1 287
• Defective outdoor unit pcb a1p 287
• Error decision conditions when a significant phase difference is made between phases 287
• Method of error detection the phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged 287
• Power supply open phase 287
• Power supply reverse phase 287
• Remote controller display 287
• Reverse phase open phase 287
• Supposed causes 287
• Troubleshooting 287
• Power supply insufficient or instantaneous error 288
• Refer to p 07 289
• Service diagnosis 280 289
• Sibe311209 troubleshooting by indication on the remote controller 289
• Check operation is not executed 290
• Transmission error between indoor units and outdoor units 291
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 292
• Service diagnosis 292
• Troubleshooting 292
• Troubleshooting by indication on the remote controller sibe311209 292
• Applicable models all indoor unit models 293
• Connection of 2 main remote controllers when using 2 remote controllers 293
• Defective indoor unit pcb 293
• Defective remote controller pcb 293
• Error decision conditions normal transmission does not continue for specified period 293
• Error of indoor unit remote controller transmission 293
• Method of error detection micro computer checks transmission between indoor unit and remote controller is normal 293
• Remote controller display 293
• Supposed causes 293
• Transmission error between remote controller and indoor unit 293
• Transmission error caused by noise 293
• Troubleshooting 293
• Transmission error across outdoor units and function units 294
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 295
• Service diagnosis 286 295
• Sibe311209 troubleshooting by indication on the remote controller 295
• Troubleshooting 295
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 296
• Service diagnosis 296
• Troubleshooting 296
• Troubleshooting by indication on the remote controller sibe311209 296
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 297
• Service diagnosis 288 297
• Sibe311209 troubleshooting by indication on the remote controller 297
• Troubleshooting 297
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 298
• Service diagnosis 298
• Troubleshooting 298
• Troubleshooting by indication on the remote controller sibe311209 298
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 299
• Service diagnosis 290 299
• Sibe311209 troubleshooting by indication on the remote controller 299
• Troubleshooting 299
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 300
• Service diagnosis 300
• Troubleshooting 300
• Troubleshooting by indication on the remote controller sibe311209 300
• Applicable models all indoor unit models 301
• Connection between sub remote controllers 301
• Defective remote controller pcb 301
• Error decision conditions normal transmission does not continue for specified period 301
• Method of error detection in case of controlling with 2 remote controller check the system using micro computer if signal transmission between indoor unit and remote controller main and sub is normal 301
• Remote controller display 301
• Supposed causes 301
• Transmission error between main and sub remote controller 301
• Transmission error between main and sub remote controllers 301
• Troubleshooting 301
• Transmission error between indoor units and outdoor units in the same system 302
• Applicable models all indoor unit models outdoor unit rtsq8 16pay1 function unit btsq20py1 303
• Defective outdoor unit pcb a1p 303
• Error decision conditions the error decision is made as soon as either of the abnormalities aforementioned is detected 303
• Excess of connected indoor units 303
• Improper combination of indoor and outdoor units indoor units and remote controller 303
• Method of error detection when the model data is different between the indoor units outdoor units and function units when the number of indoor unit is out of the permissible range 303
• Mismatching of the refrigerant type of indoor and outdoor unit 303
• Remote controller display 303
• Setting of outdoor unit pcb was not conducted after replacing to spare pcb 303
• Supposed causes 303
• Troubleshooting 303
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 304
• Service diagnosis 304
• Troubleshooting 304
• Troubleshooting by indication on the remote controller sibe311209 304
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 305
• Service diagnosis 296 305
• Sibe311209 troubleshooting by indication on the remote controller 305
• Troubleshooting 305
• Centralized address duplication 306
• Transmission error between centralized control equipment and indoor unit 307
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 308
• Service diagnosis 308
• Troubleshooting 308
• Troubleshooting by indication on the remote controller sibe311209 308
• Refer to p 16 309
• Service diagnosis 300 309
• Sibe311209 troubleshooting by indication on the remote controller 309
• Troubleshooting 309
• Applicable models all indoor unit models outdoor unit rtsq8 16pay1 310
• Defective indoor unit pcb 310
• Error decision conditions the error is determined as soon as the abnormality aforementioned is detected through checking the system for any wrong connection of units on the check operation 310
• Failure to execute check operation 310
• Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units 310
• Method of error detection 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 310
• Remote controller display 310
• Stop valve is not opened 310
• Supposed causes 310
• System is not set yet 310
• Troubleshooting 310
• System abnormality refrigerant system address undefined 311
• Caution be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 312
• Service diagnosis 312
• Troubleshooting 312
• Troubleshooting by indication on the remote controller sibe311209 312
• Check 1 313
• Check for causes of rise in high pressure referring to the fault tree analysis fta shown below probe the defective points 313
• Note 1 in cooling it is normal if the outdoor unit electronic expansion valve evm is fully open 2 in heating the indoor unit electronic expansion valve is used for subcooling degree control 313
• Service diagnosis 304 313
• Sibe311209 troubleshooting by indication on the remote controller 313
• Check 2 314
• Check for causes of drop in low pressure referring to the fault tree analysis fta shown below probe the defective points 314
• Note 1 for details of compressor capacity control while in cooling refer to compressor pi control 2 the low pressure protection control includes low pressure protection control and hot gas bypass control 3 in cooling the indoor unit electronic expansion valve is used for superheated degree control 314
• Service diagnosis 314
• Troubleshooting by indication on the remote controller sibe311209 314
• Check 3 315
• Check the factors of overheat operation referring to the fault tree analysis fta shown below probe the defective points 315
• Note 1 refer to low pressure protection control for hot gas bypass control 2 refer to subcooling electronic expansion valve control 3 superheating temperature control in cooling is conducted by indoor unit electronic expansion valve 4 judgement criteria of superheat operation 1 suction gas superheated degree 10 c and over 2 discharge gas superheated degree 45 c and over except immediately after compressor starts up or is running under drooping control use the above values as a guide depending on the other conditions the unit may be normal despite the values within the above range 315
• Service diagnosis 306 315
• Sibe311209 troubleshooting by indication on the remote controller 315
• Check 4 316
• Multiple tester prepare the analog type of multiple tester for the digital type of multiple tester those with diode check function are available for the checking 316
• Pcb and circuit diagram 316
• Point of measurement and judgement criteria 316
• Power transistor check perform the following procedures prior to check 1 power off 2 remove all the wiring connected to the pcb where power transistors are mounted on 316
• Preparation 316
• Service diagnosis 316
• Troubleshooting by indication on the remote controller sibe311209 316
• Turn off the power supply then after a lapse of 10 minutes or more make measurement of resistance 316
• When using the analog type of multiple tester make measurement in resistance measurement mode in the x1k ω range 316
• When using the digital type of multiple tester make measurement in diode check mode 316
• Check 5 317
• Check for causes of wet operation referring to the fault tree analysis fta shown below probe the defective points 317
• Defective control 317
• Defective fan motor 317
• Defective valve body 317
• Defective valve coil 317
• Dirty evaporator 317
• Dirty filter 317
• Frequent on off of compressor 317
• Note 1 superheating temperature control in cooling is conducted by indoor unit electronic expansion valve 2 superheating temperature control in heating is conducted by outdoor unit electronic expansion valve evm 3 guideline of superheated degree to judge as wet operation 1 suction gas superheated degree not more than 3 c 2 discharge gas superheated degree not more than 15 c except immediately after compressor starts up or is running under drooping control use the above values as a guide depending on the other conditions the unit may be normal despite the values within the above range 317
• Obstacles 317
• Overcharge of refrigerant 317
• Refrigerant accumulation 317
• Service diagnosis 308 317
• Sibe311209 troubleshooting by indication on the remote controller 317
• Check 6 318
• Check for overcharge of refrigerant in case of vrv systems the only way to judge as the overcharge of refrigerant is with operating conditions due to the relationship to pressure control and electronic expansion valve control as information for making a judgement refer to the information below 318
• Cooling 318
• Diagnosis of overcharge of refrigerant 1 high pressure rises consequently overload control is conducted to cause insufficient cooling capacity 2 the superheated degree of suction gas lowers or the wet operation is performed consequently the compressor becomes lower in discharge pipe temperature despite of pressure loads 3 the subcooling degree of condensate rises consequently in heating the temperature of discharge air through the subcooling section becomes lower 318
• Frequency 318
• Heating 318
• High pressure 318
• Low pressure 318
• Service diagnosis 318
• Troubleshooting by indication on the remote controller sibe311209 318
• Check 7 319
• Check for shortage of refrigerant in case of vrv systems the only way to judge as the shortage of refrigerant is with operating conditions due to the relationship to pressure control and electronic expansion valve control as information for making a judgement refer to the information below 319
• Cooling 319
• Diagnosis of shortage of refrigerant 1 the superheated degree of suction gas rises consequently the compressor discharge gas temperature becomes higher 2 the superheated degree of suction gas rises consequently the electronic expansion valve turns open 3 low pressure drops to cause the unit not to demonstrate cooling capacity heating capacity 319
• Frequency 319
• Heating 319
• High pressure 319
• Low pressure 319
• Service diagnosis 310 319
• Sibe311209 troubleshooting by indication on the remote controller 319
• Check 9 321
• List of inverter related error codes 321
• Service diagnosis 312 321
• Sibe311209 troubleshooting by indication on the remote controller 321
• Compressor overcurrent electronic thermal 1 322
• Current 322
• Error codes related to compressor current 322
• Heavy current part power transmission etc 322
• Max control 322
• P4 l1 l4 u2 p1 pj e5 l9 322
• Service diagnosis 322
• Troubleshooting by indication on the remote controller sibe311209 322
• Weak current part 322
• Check 11 323
• For accumulator r7t for heat exchanger gas pipe r5t 323
• For discharge air r4t only fxmq p 323
• For liquid pipe r6t 323
• For radiation fin r1t 323
• Indoor unit for suction air r1t for liquid pipe r2t for gas pipe r3t for ptc only fxfq r4t for ntc only fxmq p r5t 323
• Outdoor unit 323
• Outdoor unit for discharge pipe r3t r31t r33t 323
• Outdoor unit for outdoor air r1t for suction pipe r2t for heat exchanger deicer r4t 323
• Service diagnosis 314 323
• Sibe311209 troubleshooting by indication on the remote controller 323
• Thermistor resistance temperature characteristics 323
• Pressure sensor check 12 324
• 1 the intelligent touch controller and the schedule timer are not available for combined use 2 the intelligent touch controller central remote controller and the unified on off controller have been set to provided with the master unit centralized setting connector at the factory the schedule timer has been set to not provided with the master unit centralized setting connector at the factory which is attached to the casing of the master unit 326
• Centralized controller connection pattern setting of master unit centralized setting connector 2 326
• Check 14 326
• Intelligent touch controller 326
• Master unit centralized connector setting table the master unit centralized 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 centralized 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 master unit in the pcb cn1 x1a independent use connector master unit centralized setting connector to use two or more centralized controller in combination make settings according to the table shown below 326
• Pattern 326
• Service diagnosis 326
• Troubleshooting by indication on the remote controller sibe311209 326
• Unit 1 unit 1 provided not provided 1 326
• Unit not provided 326
• Unit provided 326
• Check 15 327
• Master slave unit setting table combination of intelligent touch controller and central remote controller 327
• Service diagnosis 318 327
• Sibe311209 troubleshooting by indication on the remote controller 327
• The patterns marked with have nothing to do with those described in the list of setting of master unit centralized setting connector 327
• 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 5 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 328
• Check 16 328
• Check 17 328
• 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 3 core wire to check that the values are balanced and there is no short circuit while connector or relay connector is disconnected 328
• Service diagnosis 328
• Troubleshooting by indication on the remote controller sibe311209 328
• Example of connection r 410a type 57 329
• Option list 54 329
• Part 7 appendix 329
• Piping diagrams 21 329
• Wiring diagrams for reference 32 329
• Appendix 330
• Outdoor unit 330
• Piping diagrams 330
• Piping diagrams sibe311209 330
• Rtsq8pay1 330
• Appendix 322 331
• D076295 331
• Inv std1 331
• Rtsq10pay1 331
• Sibe311209 piping diagrams 331
• Appendix 332
• D076298 332
• Filter 332
• Piping diagrams sibe311209 332
• Rtsq12pay1 332
• Appendix 324 333
• D076296 333
• Inv std1 std2 333
• Rtsq14pay1 16pay1 333
• Sibe311209 piping diagrams 333
• Appendix 334
• Btsq20py1 334
• Piping diagrams sibe311209 334
• Appendix 326 335
• Fxfq p 335
• Fxzq20m 25m 32m 40m 50m φ 12 φ 6 335
• Indoor unit 335
• Mm model gas liquid 335
• Refrigerant pipe connection port diameters 335
• Sibe311209 piping diagrams 335
• Fxcq fxdq25 25 m fxsq 336
• Refrigerant pipe connection port diameters 336
• Fxkq ma fxhq ma fxlq ma fxnq ma fxmq ma 337
• Fxdq nb pb 338
• Fxmq20p 25p 32p 40p 50p 63p 80p 100p 125p 140pve fxaq15pa 20pa 25pa 32pa 40pa 50pa 63pav1 338
• Refrigerant pipe connection port diameters 338
• Appendix 330 339
• Connection unit 339
• Electronic expansion valve 339
• Filter filter 339
• Fxmq125mf 200mf 250mfv1 339
• Fxmq200mfv1 φ 19 φ 9 fxmq250mfv1 φ 22 φ 9 339
• Fxuq bevq 339
• Gas piping connection port 339
• Indoor unit 339
• Liquid piping connection port 339
• Model gas liquid fxmq125mfv1 φ 15 φ 9 339
• Refrigerant pipe connection port diameters 339
• Sibe311209 piping diagrams 339
• Appendix 340
• Bs unit 340
• Piping diagrams sibe311209 340
• For connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 341
• How to use bs1 5 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 grn green 341
• Outdoor unit 341
• R10 f1u 341
• R6t r5t r4t r31t r7t r2t f400u 341
• Rtsq8pay1 341
• 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 5 341
• To multi unit 341
• To out d unit 341
• Wiring diagrams for reference 341
• X11a x12a 341
• X11a x15a x8a x7a x9a 341
• X1a x10a 341
• X20a z1f 341
• X31a x18a 341
• X32a x21a 341
• X3a x4a 341
• X403a x401a a1p a2p 341
• X4a x5a x8a x3a x7a x16a 341
• X61a k2m 341
• Y4s y1s y3s y2s 341
• Y9s y8s y6s y5s y7s 341
• Z2c k1r 341
• Appendix 342
• D075732b 342
• Rtsq10pay1 12pay1 342
• Wiring diagrams for reference sibe311209 342
• A6p a7p 343
• Appendix 334 343
• D075733b 343
• El compo box 343
• For connection wiring to indoor outdoor transmission f1 f2 outdoor outdoor transmission f1 f2 outdoor multi transmission q1 q2 refer to the installation manual 343
• K3m k2m 343
• L1r blk blk 343
• Layout of m1c m3c m1f m2f 343
• M 3 m 3 ms 3 343
• Ms 3 ms 3 343
• Outer shell 343
• P1 z2c k1r wht z4c 343
• P2 a6p a7p a5p a8p 343
• Q2 f2 q1 f2 f1 f1 343
• R32t r31t 343
• R4t r5t r2t 343
• R6t r7t 343
• R95 red red wht 343
• Rtsq14pay1 16pay1 343
• Sibe311209 wiring diagrams for reference 343
• To in d unit 343
• To multi unit 343
• To out d unit 343
• V1r x6a 343
• Wht red 343
• X11a x12a 343
• X1a x10a 343
• X1a x1a x111a x11a 343
• X2a x2a v2r 343
• X3a x4a x8a x7a x5a x16a 343
• X403a x401a a2p a1p 343
• X41a v1r v1r 343
• X51a x5a x5a 343
• X5a r10 f1u r10 f1u x3a x4a x4a x3a 343
• X7a x15a x8a x9a x11a x12a x13a 343
• Y1s y4s y3s y2s 343
• Y7s y9s y6s y8s y5s 343
• Z1f x20a 343
• 1 x29a 344
• 1 x30a 344
• A1p x1a red 344
• A3p x10a x1a x61a k2m 344
• Appendix 344
• Btsq20py1 344
• D060119a 344
• El compo box 344
• F400u k3r 344
• M1f l1r 344
• Outdoor q1 q2 note 3 344
• P2 r95 k1r x4a 344
• Power supply 3n 380 415v 50hz 344
• Ps x32a 344
• Ps x6a 344
• Terminal of m1c 344
• Wiring diagrams for reference sibe311209 344
• X11a x111a 344
• X1m e2hc 344
• X1m l1 l2 l3 n 344
• X1m to multi unit 344
• Y1s y2s y5s e1hc y3s e2hc y4s 344
• Z1c n 5 344
• Z2c n 3 x28a 344
• 125 class 345
• Appendix 336 345
• Colors red red prp purple org orange 345
• Connector 345
• Connector blk black gry gray grn green 345
• Field wiring 345
• Fxfq20p 25p 32p 40p 50p 63p 80p 100p 125p8veb 345
• In case of using central remote control connect it to the unit in accordance with the attached installation manual 2 x24a x33a x35a en x38a are connected when the optional accessories are being used 3 when connecting the input wires from outside forced of on off control operation can be selected by the remote controller see installation manual for more details 4 confirm the method of setting the selector switch ss1 ss2 by installation manual and engineering data etc 345
• Indoor unit 345
• Sibe311209 wiring diagrams for reference 345
• Terminal 345
• Wht white blu blue 345
• Ylw yellow pnk pink 345
• 25 32 40 50 class 22 28 36 45 56 class 346
• Appendix 346
• Fxzq20m 25m 32m 40m 50m9v1b 346
• In case of using a remote controller connect it to the unit in accordance to the attached installation manual 2 x23a is connected when the wireless remote controller kit is being used 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 to the unit 4 remote controller model varies according to the combination system see technical data and catalogs etc before connection 346
• Terminal 346
• Wiring diagrams for reference sibe311209 346
• 22 28 36 71 class 347
• 25 32 63 class 347
• Appendix 338 347
• Fxcq20m 25m 32m 63m8v3b 347
• Sibe311209 wiring diagrams for reference 347
• 45 56 90 140 class 348
• 50 80 125 class 348
• Appendix 348
• Fxcq40m 50m 80m 125m8v3b 348
• Wiring diagrams for reference sibe311209 348
• Appendix 340 349
• Fxkq25ma 32ma 40ma 63mave 349
• Sibe311209 wiring diagrams for reference 349
• Appendix 350
• Fxdq20pb 25pb 32pb 40nb 50nb 63nbve 350
• Wiring diagrams for reference sibe311209 350
• 25 class 22 28 class 351
• Appendix 342 351
• Fxdq20m 25m9v3b 351
• Sibe311209 wiring diagrams for reference 351
• Appendix 352
• Fxsq20p 25p 32p 40p 50p 63p 80p 100p 125p7veb 352
• Wiring diagrams for reference sibe311209 352
• A1p r1t r2t r3t r4t 353
• Appendix 344 353
• F1u f2u f3u f4u 353
• Fxmq20p 25p 32p 40p 50p 63p 80p 100p 125p 140pve 353
• Indoor unit 353
• R1t ss1 353
• S1l v1r v2r x1m 353
• Sibe311209 wiring diagrams for reference 353
• T t t t 353
• 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 5 for fxmq50 63 80 100 125 140pve n 2 353
• Appendix 354
• Fxmq200ma 250mave 354
• Wiring diagrams for reference sibe311209 354
• Appendix 346 355
• Fxhq32ma 63ma 100mave 355
• Sibe311209 wiring diagrams for reference 355
• Appendix 356
• D076497 356
• Fxaq15pa 20pa 25pa 32pa 40pa 50pa 63pav1 356
• Wiring diagrams for reference sibe311209 356
• Appendix 348 357
• Fxlq20ma 25ma 32ma 40ma 50ma 63mave fxnq20ma 25ma 32ma 40ma 50ma 63mave 357
• Sibe311209 wiring diagrams for reference 357
• Appendix 358
• Control box 358
• D044973a 358
• Fxuq71ma 100ma 125mav1 358
• Grn ylw 358
• Indoor unit 358
• Note 3 bev unit 358
• Power supply 50 220 240v 358
• Receiver display unit 358
• Red wht 358
• Wiring diagrams for reference sibe311209 358
• X2m 1 2 3 358
• Appendix 350 359
• Bevq71ma 100ma 125mave 359
• Sibe311209 wiring diagrams for reference 359
• Appendix 360
• Fxmq125mf 200mf 250mfv1 360
• Wiring diagrams for reference sibe311209 360
• Appendix 352 361
• Bs unit 361
• Bsv4q100pv1 361
• D063928b 361
• Electronic expansion valve main discharge 361
• Electronic expansion valve main suction 361
• Electronic expansion valve sub cool 361
• Electronic expansion valve sub discharge 361
• Electronic expansion valve sub suction 361
• Sibe311209 wiring diagrams for reference 361
• To in d unit 361
• To out d unit 361
• Y1e y5e 361
• Appendix 362
• Bs unit top all other identical places 362
• Bsv6q100pv1 362
• D063929b 362
• El compo box 362
• For using dip switch ds1 2 refer to installation manual or service precaution label on el compo box cover 362
• Notes 1 this wiring diagram applies to the bs unit only 2 terminal strip connector field wiring protective earth 3 when using the cool heat selector optional accessory connect it to terminals a b and c on x2m a1p a4p 4 as for wiring to the x2m x9m control refer to installation manual 5 symbols show as follows blu blue red red 362
• Power supply 220 240v 50hz 362
• Use copper conductors only 7 dip switch ds1 2 initial settings are as follows 362
• Wiring diagrams for reference sibe311209 362
• X1m l n blu 362
• Y1e y5e 362
• Z1c n 2 362
• 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 various pcbs 363
• Appendix 354 363
• Note 1 installation box for adaptor must be procured onsite 363
• Note 1 installation box no is necessary for each adaptor marked 363
• Operation control system optional accessories 363
• Option list 363
• Option list of controllers 363
• Sibe311209 option list 363
• System configuration 363
• Appendix 364
• Building management system 364
• Installation box for adaptor must be procured on site 364
• Is a registered trade mark of echelon corporation 364
• Is a registered trademark of american society of heating refrigerating and air conditioning engineers ashrae 364
• Lonwork 364
• Option list sibe311209 364
• Option lists outdoor unit 365
• Rtsyq10 20pay1 365
• 1 indicate the outdoor unit multi connection piping kit 2 in case of multi outdoor system re read outdoor unit to outdoor unit multi connection piping kit as seen from the indoor unit 366
• Actual and equivalent pipe length 366
• Actual pipe length actual pipe length from first refrigerant branch kit either refnet joint or refnet header to indoor unit 40m note 2 example 8 c d e f g h q 40m example 6 c i 366
• Actual pipe length pipe length between outdoor unit 2 and indoor unit 165m example 8 a b c d e f g h q 165m 366
• Between indoor and indoor unit 366
• Between outdoor and indoor units 366
• Between outdoor unit 2 and indoor unit 366
• Between outdoor unit and function uni 366
• Between outdoor unit and function unit between outdoor unit and outdoor unit multi connection piping kit 366
• Branch with refnet joint branch with refnet joint and header branch with refnet header 366
• Difference in height between indoor units h2 15m 366
• Difference in height between outdoor unit and function unit h4 1m 366
• Difference in height between outdoor unit and indoor unit h1 50m max 40m if the outdoor unit is below 366
• Difference in height between outdoor units h3 5m 366
• Example 6 a b c i 366
• Example 8 a b j 165m equivalent length equivalent pipe length between outdoor unit 2 and indoor unit 190m note 1 assume equivalent pipe length of refnet joint to be 0 m that of refnet header to be 1m that of function unit to be 6m for calculation purposes 366
• Example of connection connection of 8 indoor units 366
• Example of connection r 410a type 366
• M 8 a b j 366
• M example 8 j 366
• Outdoor unit 366
• Outdoor unit function unit 366
• Total piping length from outdoor unit 2 to all indoor unit 500m 366
• Outdoor unit multi connection piping kit and refrigerant branch kit selection 367
• Pipe size selection 367
• 0 8 25 0 2 50 0 59 80 0 22 14 1 14 kg 368
• 2 3 4 5 6 7 8 indoor units 1 8 368
• A b c r j k r s d i round off in units of 0 kg 368
• First refrigerant branch kit 368
• Function uni 368
• Function unit 368
• How to calculate the additional refrigerant to be charged 368
• In case of multi outdoor unit system 368
• In case of single outdoor unit system 368
• Indoor unit 368
• Indoor unit main pipes increase gas and liquid pipe size both 368
• Main pipes increase gas and liquid pipe size both 368
• Outdoor unit 368
• Outdoor unit function unit 368
• Refnet joint a g 368
• Revision history 369
• Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 if the outdoor unit is to be installed close to the sea shore direct exposure to the sea breeze should be avoided if you need to install the outdoor unit close to the sea shore contact your local distributor 370
• 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 370
• Cautions on product corrosion 370
• Daikin products are manufactured for export to numerous countries throughout the world prior to purchase please 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 370
• Http www daikin com global_ac 370
• If you have any enquiries please contact your local importer distributor and or retailer 370
• 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 370
• Sibe311209 09 2012 ak 370
• 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 370
• Warning 370