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Daikin RXYQ16M7W1B [222/344] L8 outdoor unit inverter current abnormal
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SiE39-404 Troubleshooting by Indication on the Remote Controller
Troubleshooting 211
2.34 “L8” Outdoor Unit: Inverter Current Abnormal
Remote
Controller
Display
L8
Applicable
Models
RXYQ5~48M
Method of
Malfunction
Detection
Malfunction is detected by current flowing in the power transistor.
Malfunction
Decision
Conditions
When overload in the compressor is detected.
Supposed
Causes
Compressor overload
Compressor coil disconnected
Defect of inverter PC board
Troubleshooting Output current check
(V2813)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Caution
Inverter
output
voltage check
Inverter output voltage
is not balanced.
(Normal if within ±10V)
Must be measured
when frequency
isstable.
Compressor overload
Inspection of the compressor and
refrigerant system is required.
Compressor inspection
Inspect according to the diagnosis
procedure for odd noises, vibration
and operating status
of the
compressor.
Replace the inverter PC board.
Reset and restart.
The secondary
current of the inverter is
higher than 15A
for each phase.
Replace the compressor.
Compressor
inspection The
compressor's coil is
disconnected.
Disconnect the the connection
between the compressor and
inverter. Make the power
transistor check mode setting
ON by service mode.
After turning
on again, "L8" blinks
a
gain.
NO
NO
NO
NO
YES
YES
YES
YES
Содержание
- Manual 1
- Service 1
- Basic control 6 2
- Combination of outdoor units 4 model selection 2
- Function general 4 2
- Functional parts layout 7 2
- Introduction vi 2
- Model names of indoor outdoor units 2 external appearance 2
- Part 1 general information 2
- Part 2 specifications 2
- Part 3 refrigerant circuit 9 2
- Part 4 function 3 2
- R410a heat pump 50hz 2
- Refrigerant circuit 0 2
- Refrigerant flow for each operation mode 0 2
- Specifications 0 2
- Other control 9 3
- Outdoor unit pc board layout 18 3 field setting 19 3
- Outline of control indoor unit 03 3
- Part 5 test operation 13 3
- Part 6 troubleshooting 57 3
- Protection control 4 3
- Special control 5 3
- Test operation 14 3
- Troubleshooting by indication on the remote controller 73 3
- Troubleshooting by remote controller 60 3
- List of electrical and functional parts 93 5
- Part 7 replacement procedure for inv compressor 5
- Part 8 appendix 59 5
- Piping diagrams 60 5
- Replacement procedure for inv compressor vrv ii rxyq5m 48m 58 5
- Troubleshooting op central remote controller 36 5
- Troubleshooting op schedule timer 42 5
- Troubleshooting op unified on off controller 49 5
- Vrv ii rxyq5m to 48m 57 5
- Wiring diagrams for reference 69 5
- Drawings flow charts v 6
- Index i 6
- Option list 01 6
- Part 9 precautions for new refrigerant r410 17 6
- Piping installation point 04 6
- Precautions for new refrigerant r410 18 6
- Selection of pipe size joints and header 06 6
- Thermistor resistance temperature characteristics 11 8 pressure sensor 13 9 method of replacing the inverter s power transistors and diode modules 14 6
- Caution in repair 7
- Introduction 7
- Safety cautions 7
- Warning 7
- Caution 8
- Cautions regarding products after repair 8
- Warning 8
- Caution 9
- Inspection after repair 9
- Warning 9
- Caution 10
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 10
- Using icons 10
- Using icons list 10
- Preface 11
- Part 1 general information 12
- General information 13
- Indoor units 13
- Indoor units connection unit series 13
- Model names of indoor outdoor units 13
- Model names of indoor outdoor units sie39 404 13
- Note bev unit is required for each indoor unit 13
- Outdoor units 13
- Ceiling mounted built in type 14
- Ceiling mounted cassette corner type 14
- Ceiling mounted cassette type double flow 14
- Ceiling mounted cassette type multi flow 14
- Ceiling mounted duct type 14
- Ceiling suspended type 14
- Concealed floor standing type 14
- External appearance 14
- Floor standing type 14
- Floor standing type connection unit series 14
- General information 3 14
- Indoor units 14
- New ceiling suspended cassette type 14
- Outdoor air processing unit 14
- Sie39 404 external appearance 14
- Slim ceiling mounted duct type 14
- Wall mounted type 14
- Wall mounted type connection unit series 14
- External appearance sie39 404 15
- General information 15
- Outdoor units 15
- Rxyq12m 14m 16m 15
- Rxyq18m 20m rxyq22m 24m 26m 15
- Rxyq28m 30m 32m rxyq34m 36m 15
- Rxyq38m 40m 42m rxyq44m 46m 48m 15
- Rxyq5m rxyq8m 10m 15
- Combination of outdoor units 16
- Connectable indoor units number and capacity 17
- General information 17
- Model selection 17
- Model selection sie39 404 17
- Vrv ii heat pump series 17
- Connectable indoor unit 18
- Connectable indoor unit connection unit series 18
- Equivalent output 0 hp 1hp 18
- General information 7 18
- Hp 2 hp 2 hp 3 hp 4hp 5hp 8hp 10hp 18
- Indoor unit capacity 18
- New refrigerant model code p20 type p25 type p32 type p40 type p50 type p63 type p80 type p100 type p125 type p200 type p250 type selecting model capacity 2 kw 2 kw 3 kw 4 kw 5 kw 7 kw 9 kw 11 kw 14 kw 22 kw 28 kw 18
- Note bev unit is required for each indoor unit 18
- Sie39 404 model selection 18
- Use the above tables to determine the capacities of indoor units to be connected make sure the total capacity of indoor units connected to each outdoor unit is within the specified value kw the total capacity of connected indoor units must be within a range of 50 to 130 of the rated capacity of the outdoor unit in some models it is not possible to connect the maximum number of connectable indoor units select models so the total capacity of connected indoor units conforms to the specification 18
- Part 2 specifications 20
- Specifications 0 20
- Outdoor units 21
- Specifications 21
- Specifications sie39 404 21
- Sie39 404 specifications 22
- Specifications 11 22
- Specifications 23
- Specifications sie39 404 23
- Sie39 404 specifications 24
- Specifications 13 24
- Specifications 25
- Specifications sie39 404 25
- Sie39 404 specifications 26
- Specifications 15 26
- Specifications 27
- Specifications sie39 404 27
- Sie39 404 specifications 28
- Specifications 17 28
- Specifications 29
- Specifications sie39 404 29
- Sie39 404 specifications 30
- Specifications 19 30
- Specifications 31
- Specifications sie39 404 31
- Ceiling mounted cassette type double flow 32
- Indoor units 32
- Sie39 404 specifications 32
- Specifications 21 32
- Bybc50g w1 bybc63g w1 bybc125g w1 bybc125g w1 33
- Ceiling mounted cassette type double flow 33
- Specifications 33
- Specifications sie39 404 33
- Byfq60bw1 byfq60bw1 byfq60bw1 34
- Ceiling mounted cassette type multi flow 600 600 34
- Sie39 404 specifications 34
- Specifications 23 34
- Byfq60bw1 byfq60bw1 35
- Ceiling mounted cassette type multi flow 600 600 35
- Specifications 35
- Specifications sie39 404 35
- Bycp125d w1 bycp125d w1 bycp125d w1 bycp125d w1 36
- Ceiling mounted cassette type multi flow 36
- Sie39 404 specifications 36
- Specifications 25 36
- Bycp125d w1 bycp125d w1 bycp125d w1 bycp125d w1 37
- Ceiling mounted cassette type multi flow 37
- Specifications 37
- Specifications sie39 404 37
- Byk45fjw1 byk45fjw1 byk45fjw1 byk71fjw1 38
- Ceiling mounted cassette corner type 38
- Sie39 404 specifications 38
- Specifications 27 38
- Slim ceiling mounted duct type 39
- Specifications 39
- Specifications sie39 404 39
- Sie39 404 specifications 40
- Slim ceiling mounted duct type 40
- Specifications 29 40
- Bybs32djw1 bybs32djw1 bybs32djw1 41
- Ceiling mounted built in type 41
- Specifications 41
- Specifications sie39 404 41
- Bybs45djw1 bybs45djw1 bybs71djw1 42
- Ceiling mounted built in type 42
- Sie39 404 specifications 42
- Specifications 31 42
- Bybs125djw1 bybs125djw1 bybs125djw1 43
- Ceiling mounted built in type 43
- Specifications 43
- Specifications sie39 404 43
- Ceiling mounted duct type 44
- Sie39 404 specifications 44
- Specifications 33 44
- Ceiling mounted duct type 45
- Specifications 45
- Specifications sie39 404 45
- Ceiling suspended type 46
- Sie39 404 specifications 46
- Specifications 35 46
- Specifications 47
- Specifications sie39 404 47
- Wall mounted type 47
- Sie39 404 specifications 48
- Specifications 37 48
- Wall mounted type 48
- Floor standing type 49
- Specifications 49
- Specifications sie39 404 49
- Floor standing type 50
- Sie39 404 specifications 50
- Specifications 39 50
- Concealed floor standing type 51
- Specifications 51
- Specifications sie39 404 51
- Concealed floor standing type 52
- Sie39 404 specifications 52
- Specifications 41 52
- Bev units 53
- Ceiling suspended cassette type 53
- Connection unit 53
- Indoor unit 53
- Liquid pipes 53
- Specifications 53
- Specifications sie39 404 53
- Suction gas pipes 53
- Sie39 404 specifications 54
- Specifications 43 54
- Wall mounted type 54
- Bev units 55
- Liquid pipes 55
- Specifications 55
- Specifications sie39 404 55
- Suction gas pipes 55
- Wall mounted type 55
- Floor standing type 56
- Sie39 404 specifications 56
- Specifications 45 56
- Floor standing type 57
- Specifications 57
- Specifications sie39 404 57
- Outdoor air processing unit 58
- Sie39 404 specifications 58
- Specifications 47 58
- Functional parts layout 7 60
- Part 3 refrigerant circuit 60
- Refrigerant circuit 0 60
- Refrigerant flow for each operation mode 0 60
- Note please refer the refrigerant circuit for products before december 2003 to service manual si39 302 61
- Products after january 2004 61
- Refrigerant circuit 61
- Rxyq5m 61
- Refirgerant circuit 51 62
- Rxyq5m 62
- Sie39 404 refrigerant circuit 62
- Note please refer the refrigerant circuit for products before december 2003 to service manual si39 302 63
- Products after january 2004 63
- Refirgerant circuit 63
- Refrigerant circuit sie39 404 63
- Rxyq8 10 12m 63
- Refirgerant circuit 53 64
- Rxyq8 10 12m 64
- Sie39 404 refrigerant circuit 64
- Note please refer the refrigerant circuit for products before december 2003 to service manual si39 302 65
- Products after january 2004 65
- Refirgerant circuit 65
- Refrigerant circuit sie39 404 65
- Rxyq14 16m 65
- Refirgerant circuit 55 66
- Rxyq14 16m 66
- Sie39 404 refrigerant circuit 66
- C a pill a ry t ub e 67
- Check v a lve 67
- Di s tri bu tor 67
- Electronic exp a n s ion v a lve 67
- Filter 67
- G as pipe connection port 67
- He a t exch a nger 67
- Li qu id pipe connection port 67
- Main control equipment 67
- Outdoor air processing unit fxmq125 250mfv1 67
- Refrigerant system 67
- S olenoid v a lve 67
- Thermistor 67
- Front view 68
- Functional parts layout 68
- Refirgerant circuit 57 68
- Rxyq5m 68
- Sie39 404 functional parts layout 68
- Front view 69
- Functional parts layout sie39 404 69
- Refirgerant circuit 69
- Rxyq8 10 12m 69
- Front view 70
- Refirgerant circuit 59 70
- Rxyq14 16m 70
- Sie39 404 functional parts layout 70
- Refirgerant circuit 71
- Refrigerant flow for each operation mode 71
- Refrigerant flow for each operation mode sie39 404 71
- Rxyq5m cooling operation 71
- Cooling oil return operation 72
- Refirgerant circuit 61 72
- Sie39 404 refrigerant flow for each operation mode 72
- Heating oil return defrost operation 73
- Refirgerant circuit 73
- Refrigerant flow for each operation mode sie39 404 73
- Heating operation 74
- Refirgerant circuit 63 74
- Sie39 404 refrigerant flow for each operation mode 74
- Refirgerant circuit 75
- Refrigerant flow for each operation mode sie39 404 75
- Rxyq8 10 12m cooling operation 75
- Cooling oil return 76
- Refirgerant circuit 65 76
- Sie39 404 refrigerant flow for each operation mode 76
- Heating oil return defrost 77
- Refirgerant circuit 77
- Refrigerant flow for each operation mode sie39 404 77
- Heating operation 78
- Refirgerant circuit 67 78
- Sie39 404 refrigerant flow for each operation mode 78
- Refirgerant circuit 79
- Refrigerant flow for each operation mode sie39 404 79
- Rxyq14 16m cooling operation 79
- Cooling oil return operation 80
- Refirgerant circuit 69 80
- Sie39 404 refrigerant flow for each operation mode 80
- Heating oil return defrost operation 81
- Refirgerant circuit 81
- Refrigerant flow for each operation mode sie39 404 81
- Heating operation 82
- Refirgerant circuit 71 82
- Sie39 404 refrigerant flow for each operation mode 82
- Basic control 6 84
- Function general 4 84
- Other control 9 84
- Outline of control indoor unit 03 84
- Part 4 function 84
- Protection control 4 84
- Special control 5 84
- Function general 85
- Symbol 85
- Operation mode 86
- Basic control 87
- H heating operation is not functional at an outdoor air temperature of 24 c or more 87
- Normal operation 87
- 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 88
- Compressor pi control 88
- Cooling operation 88
- Heating operation 88
- Basic control sie39 404 89
- Compressor operating priority 89
- Function 89
- In the case of combination of 3 outdoor units the above diagram shows master unit slave unit 1 and slave unit 2 from left to right compressors may operate in any pattern other than those mentioned above according to the operating status 89
- Available only on 50hz 90
- Compressors are operated in the order of descending priorities compressors may operate in a pattern other than those listed in above tables subject to the operating conditions 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 90
- Function 79 90
- Rxyq14 16m 90
- Rxyq18 20 22m 90
- Rxyq24 26 28m 90
- Rxyq5m 90
- Rxyq8 10 12m 90
- Sie39 404 basic control 90
- Basic control sie39 404 91
- Compressors are operated in the order of descending priorities compressors may operate in a pattern other than those listed in above tables subject to the operating conditions 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 91
- Function 91
- Rxyq30 32m 91
- Rxyq34 36 38m 91
- Compressors are operated in the order of descending priorities compressors may operate in a pattern other than those listed in above tables subject to on the operating conditions master unit slave unit 1 and slave unit 2 in this section are the names for control and they will be transferred according to the priority of rotation system 92
- Function 81 92
- Rxyq40 42 44m 92
- Sie39 404 basic control 92
- Basic control sie39 404 93
- Compressors are operated in the order of descending priorities compressors may operate in a pattern other than those listed in above tables subject to on the operating conditions master unit slave unit 1 and slave unit 2 in this section are the names for control and they will be transferred according to the priority of rotation system 93
- Function 93
- Only for 50hz 93
- Rxyq46 48m 93
- Carries out the motorized valve y1e pi control to maintain the evaporator outlet superheated degree sh at constant during heating operation to make maximum use of the outdoor unit heat exchanger evaporator 94
- Electronic expansion valve pi control 94
- Main motorized valve ev1 control 94
- Makes pi control of the motorized valve y2e to keep the superheated degree of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger 94
- Subcooling motorized valve ev2 control 94
- The optimum initial value of the evaporator outlet superheated degree is 5 c but varies depending on the discharge pipe superheated degree of inverter compressor 94
- Basic control sie39 404 95
- Cooling operation fan control 95
- Fan steps 95
- Function 95
- In cooling operation with low outdoor air temperature this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan 95
- Pc 1 mpa 95
- Pc 2 mpa 95
- Pc hp pressure sensor detection value 95
- Step8 1 95
- Step8 2 95
- In the case of multi outdoor unit system both master and slave units perform the operations listed in the table above actuators are based on rxyq16m 96
- Special control 96
- Startup control 96
- Startup control in cooling operation 96
- Startup control in heating operation 96
- In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the oil return operation non operating unit stops during oil return preparation operation actuators are based on rxyq16m 97
- Oil return operation 97
- Oil return operation in cooling operation 97
- Hours however 2 hours after turning power on first time 98
- In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the oil return operation non operating unit stops during oil return preparation operation actuators are based on rxyq16m 98
- Oil return operation in heating operation 98
- Defrost operation is started when the outdoor heat exchanger temperature becomes lower than deicer temperature defrost operation is conducted once in max 2 hours 99
- Defrosting operation 99
- In the case of multi outdoor unit system master unit performs the operations listed in the table above slave units operating units perform the operations listed in the table above non operating units perform the operations listed in the table above from the defrost operation non operating unit stops during defrost preparation operation actuators are based on rxyq16m 99
- Actuators are based on rxyq16m 100
- Pump down residual operation 100
- Pump down residual operation in cooling operation 100
- Pump down residual operation in heating operation 100
- Actuators are based on rxyq16m 101
- Restart standby 101
- Actuators are based on rxyq16m 102
- Stopping operation 102
- When system is in stop mode 102
- In cooling operation the system operates in mode a or mode b listed in the table below 103
- In heating operation the system operates in mode a or mode b listed in the table below 103
- Mode a oper a ting u nit collect s refriger a nt 103
- Mode a or b oper a tion 103
- Mode b s topping u nit s tor a ge refriger a nt 103
- Stopping operation of slave units during master unit is in operation with multi outdoor unit system 103
- The changeover operation for mode a and b is performed for the reason that the required refrigerant amount varies depending on the indoor unit operation capacity 103
- Pressure equalization prior to startup 104
- Function 105
- High pressure protection control 105
- In cooling operation h in the case of multi outdoor unit system each outdoor unit performs this control individually in the following sequence 105
- In heating operation h in the case of multi outdoor unit system the entire system performs this control in the following sequence 105
- Protection control 105
- Protection control sie39 404 105
- 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 105
- In cooling operation h in the case of multi outdoor unit system the entire system performs this control in the following sequence 106
- In heating operation h in the case of multi outdoor unit system each outdoor unit performs this control individually in the following sequence 106
- Low pressure protection control 106
- This low pressure protection control is used to protect compressors against the transient decrease of low pressure 106
- Di s ch a rge pipe temp protection control not limited applic ab le s td compre ss or s top s 107
- Discharge pipe protection control 107
- H each compressor performs the discharge pipe temperature protection control individually in the following sequence 107
- Inv compressor 107
- Std compressor 107
- This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature 107
- Fin temp s t a nd b y 108
- H in the case of multi outdoor unit system each inv compressor performs these controls in the following sequence 108
- Inv u pper limit fre qu ency 1 s tep 1 min u p from c u rrent compre ss or fre qu ency interv a l 108
- Inverter c u rrent 8 1 c contin u e s for 3 min or more 108
- Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction or transient inverter overcurrent and fin temperature increase 108
- Inverter fin temperature control 108
- Inverter overcurrent protection control 108
- Inverter protection control 108
- Not limited 108
- Tfin 8 1 c inv u pper limit fre qu ency 210 hz 108
- Under fin temper a t u re protection control 108
- When occ u rring 3 time s within 60 min the m a lf u nction code l4 i s o u tp u t 108
- Std compressor overload protection 109
- This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of std compressor such as locking 109
- After oil return operation after defrosting operation at the beginning of the starting control 110
- Details of outdoor unit rotation in the case of multi outdoor unit system each outdoor unit is given an operating priority for the control outdoor unit rotation makes it possible to change the operating priority of outdoor units thus the system becomes free of compressors that stop over an extended period of time at the time of partial loading preventing unbalanced oil level 110
- Example the following diagram shows outdoor unit rotation in combination of 3 outdoor units 110
- In the case of multi outdoor unit system this outdoor unit rotation is used to prevent the compressor from burning out due to unbalanced oil level between outdoor units 110
- Master unit slave unit 1 and slave unit 2 in this section are the names for installation they are determined in installation work and not changed thereafter these names are different from master unit and slave unit for control the outdoor unit connected the control wires f1 and f2 for the indoor unit should be designated as master unit consequently the led display on the main pcb for master unit slave unit 1 and slave unit 2 do not change refer to the page 90 110
- Other control 110
- Outdoor unit rotation 110
- Timing of outdoor unit rotation 110
- 7777797 7777777 77 7777777 111
- 7777799 7777777 77 7777777 111
- Emergency operation 111
- In the case of 1 outdoor unit system rxyq8 to 16m 111
- Restrictions for emergency operation 111
- 7777797 7777777 77 7777777 112
- In the case of multi outdoor unit system rxyq18 to 48m 112
- 7777779 7777797 7777777 77 7777777 113
- Demand operation 113
- Heating operation prohibition 113
- Note reset the power supply during the outdoor unit is stopping to cancel the automatic backup operation forcibly 113
- 1 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 114
- Drain pump control 114
- Outline of control indoor unit 114
- The drain pump is controlled by the on off buttons 4 button 1 4 given in the figure below 114
- When the float switch is tripped during cooling off by thermostat 114
- When the float switch is tripped while the cooling thermostat is on 114
- During heating operation if the float switch is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 115
- Flo a t s witch 115
- Function 115
- H u midifier 115
- Min 5 min 115
- Note if the float switch is tripped five times in succession a drain malfunction is determined to have occurred af is then displayed as operation continues 115
- Off dr a in p u mp 115
- Outline of control indoor unit sie39 404 115
- Re s et 115
- Remote control a 3 fl as hing m a lf u nction s top 115
- Thermo s t a t r u nning 115
- When the float switch is tripped and af is displayed on the remote controller 115
- When the float switch is tripped during heating operation 115
- Function 105 116
- Louver control for preventing ceiling dirt 116
- P 3 p4 116
- P1 p2 p 3 p4 116
- P4 p 3 116
- P4 p4 p 3 p2 p1 p0 116
- P4 p4 p2 p1 p0 116
- Sie39 404 outline of control indoor unit 116
- We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled this feature is available on double flow multi flow and corner types 116
- And assuming suction temperature has changed from 30 c to 18 c f a body thermostat sensor is used for temperatures from 30 c to 25 c f d remote controller thermostat sensor is used for temperatures from 25 c to 21 c d b body thermostat sensor is used for temperatures from 21 c to 18 c b a 117
- Cooling 117
- Ex when cooling assuming the preset temperature in the figure above is 24 c and the suction temperature has changed from 18 c to 30 c a f this example also assumes there are several other air conditioners the vrv system is off and that temperature changes even when the thermostat sensor is off body thermostat sensor is used for temperatures from 18 c to 23 c a c remote controller thermostat sensor is used for temperatures from 23 c to 27 c c e body thermostat sensor is used for temperatures from 27 c to 30 c e f 117
- Function 117
- If there is a significant difference in the preset temperature and the suction temperature fine adjustment control is carried out using a body thermostat sensor or using the sensor in the remote controller near the position of the user when the suction temperature is near the preset temperature 117
- Outline of control indoor unit sie39 404 117
- Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit this is however limited to when the field setting for the thermostat sensor in remote controller is set to use 117
- Thermostat sensor in remote controller 117
- And assuming suction temperature has changed from 28 c to 18 c d a remote controller thermostat sensor is used for temperatures from 28 c to 23 c d b body thermostat sensor is used for temperatures from 23 c to 18 c b a 118
- Ex when heating assuming the preset temperature in the figure above is 24 c and the suction 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 thermostat sensor is off body thermostat sensor is used for temperatures from 18 c to 25 c a c remote controller thermostat sensor is used for temperatures from 25 c to 28 c c d 118
- Function 107 118
- Heating 118
- Sie39 404 outline of control indoor unit 118
- 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 body thermostat sensor only the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature the temperature can be controlled so the lower part of the room where the occupants are doesn t become cold by widening the range in which thermostat sensor in remote controller can be used so that suction temperature is higher than the preset temperature 118
- Conditions for starting freeze 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 prevention temperature is 7 c or more for 10 min continuously 119
- Ex case where temperature is 5 c or less for total of 10 min 119
- Freeze prevention 119
- Freeze prevention by off cycle indoor unit 119
- Function 119
- Outline of control indoor unit sie39 404 119
- When the temperature detected by liquid pipe temperature thermistor r2t of the indoor unit heat exchanger drops too low the unit enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below 119
- Control of outdoor air processing unit unique control for outdoor air processing unit 120
- Details 120
- Objective 120
- Outdoor air processing unit 120
- Selection of operation mode by suction air thermostat 120
- To select cooling heating or fan operation mode according to the suction air outdoor air temperature 120
- Di s ch a rge a ir 121
- Discharge air temperature control 121
- Ev ev ev ev ev ev 121
- I s ev po ss i b le to clo s e 121
- I s ev po ss i b le to open 121
- Refriger a nt 121
- S h t 3 t2 121
- Temp s etting 121
- Di s ch a rge a ir 122
- Ev ev ev ev ev ev 122
- I s ev po ss i b le to clo s e 122
- I s ev po ss i b le to open 122
- Refriger a nt 122
- S c tc t2 122
- T2 t1 t4 122
- T4 t s 122
- Temp s etting 122
- Ye s ye s 122
- Details 123
- Low outdoor air temperature protection control 123
- Objective 123
- Outdoor unit pc board layout 18 3 field setting 19 124
- Part 5 test operation 124
- Test operation 14 124
- Check work prior to turn power supply on 125
- Procedure and outline 125
- Test operation 125
- Turn power on 125
- 7777777 7777 7 126
- 9 7777777 7 126
- Check operation 126
- Confirmation on normal operation 127
- Be sure to push and hold the reset button for 5 seconds if not the addition cannot be recognized in this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc status 128
- Caution when the 400 volt power s upply i s applyed to n pha s e by mi s take replace inverter p c b a2p and control tran s former t1r t2r in s witch box to g ether 128
- Operation when power is turned on 128
- Tap the reset button on the outdoor unit pc board operation becomes possible for about 2 minutes if you do not push the reset button the unit cannot be run for up to 10 minutes to automatically set master power status 128
- The unit cannot be run for up to 12 minutes to automatically set the master power and address indoor outdoor address etc status 128
- When an indoor unit or outdoor unit has been added or indoor or outdoor unit pc board has been changed 128
- When turning on power first time 128
- When turning on power the second time and subsequent 128
- Outdoor unit pc board layout 129
- Field setting 130
- Field setting from remote controller 130
- Wireless remote controller indoor unit 131
- Simplified remote controller 132
- Field setting sie39 404 133
- Notes 1 settings are made simultaneously for the entire group however if you select the mode no inside parentheses you can also set by each individual unit setting changes however cannot be checked except in the individual mode for those in parentheses 2 the mode numbers inside parentheses cannot be used by wireless remote controllers so they cannot be set individually setting changes also cannot be checked 3 marked are factory set 4 do not make settings other than those described above nothing is displayed for functions the indoor unit is not equipped with 5 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 6 if the setting mode to equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit 133
- Setting contents and code no vrv indoor unit 133
- Test operation 133
- 1 static pressure selection 134
- Applicable range of field setting 134
- Sie39 404 field setting 134
- Test operation 123 134
- Auto restart after power failure reset 135
- 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 135
- Detailed explanation of setting modes 135
- Fan speed changeover when thermostat is off 135
- Filter sign setting 135
- 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 135
- Ultra long life filter sign setting 135
- Air flow adjustment ceiling height 136
- Air flow direction setting 136
- In the case of fxfq100 125 136
- In the case of fxfq25 80 136
- In the case of fxuq71 125m 136
- Make the following setting according to the ceiling height the setting position no is set to 01 at the factory in the case of fxaq fxhq 136
- 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 136
- Set the air flow direction of indoor units as given in the table below set when optional air outlet blocking pad has been installed the second code no is factory set to 01 136
- Setting of air flow direction adjustment 136
- Setting table 136
- Air flow rate switching at discharge grille for field air flow rate switching 137
- Make the following air flow direction setting according to the respective purpose 137
- Setting of air flow direction adjustment range 137
- Setting of the static pressure selection for fxdq model 137
- Setting table 137
- When the optional parts high performance filter etc is installed sets to change fan speed for securing air flow rate follow the instruction manual for the optional parts to enter the setting numbers 137
- Note bold face in indicates the default setting 138
- Outdoor air processing unit field setting remote controller 138
- Brc1a type 139
- Centralized control group no setting 139
- Brc7c type 140
- Caution when turning the power supply on the unit may often not accept any operation while 88 is displaying after all indications were displayed once for about 1 minute on the liquid crystal display this is not an operative fault 140
- Enter the selected group numbers by pushing button 5 push button and return to the normal mode brc7c type 140
- Group no setting by wireless remote controller for centralized control 1 when in the normal mode push button for 4 seconds or more and operation then enters the field set mode 2 set mode no 00 with button 3 set the group no for each group with button advance backward 140
- Group no setting example 140
- Sie39 404 field setting 140
- Test operation 129 140
- Contents of control modes 141
- Setting of operation control mode from remote controller local setting 141
- 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 142
- How to select operation mode 142
- 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 142
- Field setting from outdoor unit 143
- Detail of ds1 4 ds2 1 4 setting 144
- On off 144
- 7 7 7 7 7 7 7 145
- 7 7 7 7 7 7 9 145
- 7 8 7 7 7 7 8 145
- Factory setting 145
- Field setting sie39 404 145
- H1p h2p h3p h4p h5p h6p h7p h8p 145
- Master unit 145
- Mode changing procedure 145
- Setting by pushbutton switches the following settings are made by pushbutton switches on pc board 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 indication as shown below 145
- Slave unit 1 145
- Slave unit 2 145
- Test operation 145
- There are the following three setting modes 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 setting mode 2 h1p on used to modify the operating status and to set program addresses etc usually used in servicing the system monitor mode h1p blinks used to check the program made in setting mode 2 mode changing procedure 145
- U s ing the mode bu tton the mode s c a n b e ch a nged as follow s 145
- 7 7 7 8 7 7 146
- 7 7 8 7 7 7 146
- 7 8 7 7 7 7 146
- 7 8 7 7 7 8 146
- 7 8 7 7 8 7 146
- 8 8 7 7 7 7 146
- 9 8 7 7 7 7 146
- A s ettin g mode 1 146
- Display during demand operation 146
- Display during low noise operation 146
- Display for malfunction preparing test run 146
- Setting no 1 5 6 are the present status display only 146
- Additional refrigerant charge operation setting carries out additional refrigerant charge operation 147
- Airnet address set address for airnet 147
- B s ettin g mode 2 147
- Capacity precedence setting if the capacity control is required the low noise control is automatically released by this setting during carrying out low noise operation and nighttime low noise operation 147
- Cool heat unified address sets address for cool heat unified operation 147
- Defrost changeover setting changes the temperature condition for defrost and sets to quick defrost or slow defrost 147
- Demand setting 1 changes target value of power consumption when demand control 1 is input 147
- Emergency operation std compressor operation prohibited 147
- Emg emergency operation 1 147
- External low noise setting demand setting reception of external low noise or demand signal 147
- Field setting sie39 404 147
- High static pressure setting make this setting in the case of operating in high static pressure mode with diffuser duct mounted 147
- Indoor unit forced fan h allows forced operation of indoor unit fan while unit is stopped h tap 147
- Indoor unit forced operation allows forced operation of indoor unit 147
- Low noise demand address address for low noise demand operation 147
- Low noise setting sets low noise level when the low noise signal is input from outside 147
- Night time low noise control ending setting sets ending time of nighttime low noise operation nighttime low noise setting is also required 147
- Night time low noise control starting setting sets starting time of nighttime low noise operation nighttime low noise setting is also required 147
- Night time low noise setting 147
- No setting item description 147
- Normal demand setting 147
- Normally enables demand control 1 without external input effective to prevent a problem that circuit breaker of small capacity is shut down due to large load 147
- Operates by standard compressor only when inverter compressor malfunctions temporary operation until the compressor is replaced since the comfortability is extremely deteriorated immediately replace the compressor this setting is not applicable to rxyq5m 147
- Power transistor check mode check after disconnection of compressor wires 147
- Refrigerant collection mode setting sets to refrigerant collection mode 147
- Sequential operation setting sets sequential operation 147
- Sets automatic nighttime low noise operation in a simple way the operating time is based on starting set and ending set 147
- Te setting target evaporation temperature for cooling 9 tc setting target condensation temperature for heating 147
- Test operation 147
- Used for trouble diagnosis of dc compressor since the waveform of inverter is output without wiring to the compressor it is convenient to probe whether the trouble comes from the compressor or pc board 147
- Used to operate system only with inverter compressor when std compressor malfunctions this is a temporary operation extremely impairing comfortable environment therefore prompt replacement of the compressor is required this operation however is not set with rxyq5m 147
- 7 7 7 7 7 151
- 7 7 7 7 8 151
- 7 7 7 7 9 151
- 7 7 7 8 7 151
- 7 7 7 8 8 151
- 7 7 7 9 7 151
- 7 7 8 7 7 151
- 7 7 8 7 8 151
- 7 7 8 8 7 151
- 7 7 8 8 8 151
- 7 7 9 7 7 151
- 7 8 7 7 7 151
- 7 8 7 7 8 151
- 7 8 7 8 7 151
- 7 8 7 8 8 151
- 7 8 8 7 7 151
- 7 8 8 7 8 151
- 7 8 8 8 7 151
- 7 8 8 8 8 151
- 8 7 7 7 7 151
- 8 7 8 7 7 151
- 8 7 8 7 8 151
- 8 7 8 8 7 151
- 9 7 7 7 7 151
- C monitor mode 151
- Defrost select setting short 151
- Emg operation backup operation setting on 151
- Field setting sie39 404 151
- Medium 151
- Number of units for sequential start 1 unit 151
- Setting item 0 display contents of number of units for sequential start and others 151
- Tc setting h 151
- Te setting h 151
- Test operation 151
- Cool heat mode switching 153
- Field setting sie39 404 153
- It does not matter whether or not there is outdoor outdoor unit wiring set outdoor unit pc board ds1 1 to indoor factory set set cool heat switching to individual for setting mode 1 factory set 153
- Set cool heat separately for each outdoor system by indoor unit remote controller 153
- Test operation 153
- There are the following 5 cool heat switching modes set cool heat separately for each outdoor unit system by indoor unit remote controller set cool heat separately for each outdoor unit system by cool heat switching remote controller set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller 153
- C h s elect 154
- It does not matter whether or not there is outdoor outdoor unit wiring set outdoor unit pc board ds1 1 to outdoor factory set set cool heat switching to individual for setting mode 1 factory set 154
- Mode c h s elect 154
- Set cool heat separately for each outdoor unit system by cool heat switching remote controller 154
- Sie39 404 field setting 154
- Test operation 143 154
- Install the outdoor unit external control adapter on either the outdoor outdoor indoor outdoor or transmission line set outdoor unit pc board ds1 1 to indoor factory set 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 set the outdoor unit external control adapter ss1 to unified factory set or cool and ss2 to no factory set 155
- Multi outdoor units connection 155
- Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller 155
- To indoor u nit 155
- To indoor u nit to indoor u nit 155
- Add and change the following items to h install cool heat switching remote controller on the group master outdoor unit h set ss1 on the group master outdoor unit pc board 156
- Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller 156
- Sie39 404 field setting 156
- Supplementation on and 156
- Test operation 145 156
- When switching cool heat for each adapter pc board with the use of more than one adapter pc board set the address of the adapter pc board ds1 and ds2 so that it matches the unified cool heat address of outdoor unit pc board 156
- Address setting for 157
- Set lower 5 digits with binary number no to no 1 157
- Setting of low noise operation 158
- Setting of low noise operation and demand operation 158
- Field setting sie39 404 159
- Image of operation in the case of a 159
- Image of operation in the case of a b 159
- Image of operation in the case of b 159
- Test operation 159
- Setting of demand operation 160
- Field setting sie39 404 161
- Image of operation in the case of a 161
- Image of operation in the case of a and b 161
- Image of operation in the case of b 161
- Test operation 161
- Detailed setting procedure of low noise operation and demand control 162
- Additional refri g erant char g e total flow 164
- Additional refrigerant charge total flow 164
- Setting of refrigerant additional charging operation 164
- Sie39 404 field setting 164
- Test operation 153 164
- When additional refrigerant is not charged all with outdoor unit in stop mode operate the outdoor unit and charge the liquid refrigerant from the service port of liquid stop value the additional charging operation is activated by pushbutton switch on the outdoor unit pc board 164
- Setting of refrigerant recovery mode 165
- Check operation 166
- Check operation function 166
- In order to perform vacuuming operation at site fully open the expansion valves of indoor and outdoor units to turn on some solenoid valves 166
- Note be sure to disconnect the compressor wiring when conducting the check operation mentioned above when the output voltage is approx 50 v 10 hz and the voltage balance between phases u v v w w u is within 5 the inverter pcb is normal 166
- Operating procedure with setting mode 2 while the unit stops set b refrigerant recovery vacuuming mode to on the expansion valves of indoor and outdoor units fully open and some of solenoid valves open h2p blinks to indicate the test operation and the remote controller displays test operation and in centralized control thus prohibiting operation after setting do not cancel setting mode 2 until completion of vacuuming operation use the vacuum pump to perform vacuuming operation press mode button bs1 once and reset setting mode 2 166
- Power transistor check operation 166
- Setting of vacuuming mode 166
- To prevent any trouble in the period of installation at site the system is provided with a test operation mode enabling check for incorrect wiring stop valve left in closed coming out or misplacing with suction pipe thermistor of discharge pipe thermistor and judgment of piping length refrigerant overcharging and learning for the minimum opening degree of motorized valve 166
- When the inverter system malfunctions malfunction of inverter inv compressor to locate where the malfunction occurs switching to the power transistor check mode of inverter in the service mode setting enables not to judge the position detection signal malfunction but to output waveform only during inverter operation the waveform can be checked by disconnecting the wiring of compressor 166
- Part 6 troubleshooting 168
- Troubleshooting by indication on the remote controller 73 168
- Troubleshooting by remote controller 60 168
- Troubleshooting op central remote controller 36 169
- Troubleshooting op schedule timer 42 169
- Troubleshooting op unified on off controller 49 169
- The following modes can be selected by using the inspection test operation button on the remote control 171
- The inspection test button 171
- Troubleshooting 171
- Troubleshooting by remote controller 171
- Troubleshooting by remote controller sie39 404 171
- Explanation 172
- If operation stops due to malfunction the remote controller s operation led blinks and malfunction code is displayed even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered the malfunction code enables you to tell what kind of malfunction caused operation to stop see page 168 for malfunction code and malfunction contents 172
- Self diagnosis by wired remote controller 172
- Sie39 404 troubleshooting by remote controller 172
- Troubleshooting 161 172
- Advance button backward button 173
- In the case of brc7c type 173
- Self diagnosis by wireless remote controller 173
- Advance button backward button 174
- The lower digit of the code changes as shown below when the up and down buttons are pressed 174
- Troubleshooting 175
- Troubleshooting by remote controller sie39 404 175
- Operation of the remote controller s inspection test operation button 176
- Sie39 404 troubleshooting by remote controller 176
- Troubleshooting 165 176
- How to enter the service mode 177
- Remote controller service mode 177
- Select the mode no set the desired mode no with the button for wireless remote controller mode 43 only can be set 2 select the unit no for group control only select the indoor unit no to be set with the time mode for wireless remote controller button 3 make the settings required for each mode modes 41 44 45 in case of mode 44 45 push button to be able to change setting before setting work lcd code blinks for details refer to the table in next page 4 define the setting contents modes 44 45 define by pushing the timer button after defining lcd code changes blinking to on 5 return to the normal operation mode push the button one time 177
- Service mode operation method 177
- Troubleshooting 177
- Troubleshooting by remote controller sie39 404 177
- Remote controller self diagnosis function 179
- The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out if a malfunction occurs during operation the operation lamp malfunction code and display of malfunctioning unit no let you know the contents and location of the malfunction when there is a stop due to malfunction the contents of the malfunction given below can be diagnosed by a combination of operation lamp inspection display of the liquid crystal display and display of malfunction code it also lets you know the unit no during group control 179
- Troubleshooting 179
- Troubleshooting by remote controller sie39 404 179
- The system operates for malfunction codes indicated in black squares however be sure to check and repair 181
- Det a il de s cription on next p a ge 182
- Malfunction code indication by outdoor unit pcb 182
- Monitor mode 182
- P us h the mode bu tton b s 1 a nd ret u rn s to s etting mode 1 182
- P us h the return bu tton b s3 a nd s witche s to the initi a l s t a t us of monitor mode 182
- P us h the return bu tton b s3 once to di s pl a y fir s t digit of m a lf u nction code 182
- P us h the s et bu tton b s 2 a nd s et the led di s pl a y to a s etting item 182
- P us h the s et bu tton b s 2 once to di s pl a y m as ter or s l a ve1 or s l a ve2 a nd m a lf u nction loc a tion 182
- P us h the s et bu tton b s 2 once to di s pl a y s econd digit of m a lf u nction code 182
- Refer p 24 for monitor mode 182
- Sie39 404 troubleshooting by remote controller 182
- To enter the monitor mode p us h the mode bu tton b s 1 when in s etting mode 1 182
- Troubleshooting 171 182
- A0 indoor unit error of external protection device 184
- Actuation of external protection device improper field set defect of indoor unit pc board 184
- All indoor unit models 184
- Applicable models 184
- Malfunction decision conditions 184
- Method of malfunction detection 184
- Remote controller display 184
- Supposed causes 184
- Troubleshooting 184
- Troubleshooting by indication on the remote controller 184
- A1 indoor unit pc board defect 185
- All indoor unit models 185
- Applicable models 185
- Check data from e²prom 185
- Defect of indoor unit pc board 185
- Malfunction decision conditions 185
- Method of malfunction detection 185
- Remote controller display 185
- Supposed causes 185
- Troubleshooting 185
- Troubleshooting by indication on the remote controller sie39 404 185
- When data could not be correctly received from the e²prom e²prom type of nonvolatile memory maintains memory contents even when the power supply is turned off 185
- A3 indoor unit malfunction of drain level control system s1l 186
- Applicable models 186
- Malfunction decision conditions 186
- Method of malfunction detection 186
- Remote controller display 186
- Supposed causes 186
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 187
- Troubleshooting 187
- Troubleshooting by indication on the remote controller sie39 404 187
- A6 indoor unit fan motor m1f lock overload 188
- All indoor units 188
- Applicable models 188
- Detection by failure of signal for detecting number of turns to come from the fan motor 188
- Fan motor lock disconnected or faulty wiring between fan motor and pc board 188
- Malfunction decision conditions 188
- Method of malfunction detection 188
- Remote controller display 188
- Sie39 404 troubleshooting by indication on the remote controller 188
- Supposed causes 188
- Troubleshooting 188
- Troubleshooting 177 188
- When number of turns can t be detected even when output voltage to the fan is maximum 188
- A7 indoor unit malfunction of swing flap motor ma 189
- Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 190
- Sie39 404 troubleshooting by indication on the remote controller 190
- Troubleshooting 190
- Troubleshooting 179 190
- A9 indoor unit malfunction of moving part of electronic expansion valve 20e 191
- All indoor unit models 191
- Applicable models 191
- Detection by failure of signal for detecting number of turns to come from the fan motor 191
- Malfunction decision conditions 191
- Malfunction of moving part of electronic expansion valve defect of indoor unit pc board defect of connecting cable 191
- Method of malfunction detection 191
- Remote controller display 191
- Supposed causes 191
- Troubleshooting 191
- Troubleshooting by indication on the remote controller sie39 404 191
- When number of turns can t be detected even when output voltage to the fan is maximum 191
- 1 coil check method for the moving part of the electronic expansion valve discount the electronic expansion valve from the pc board and check the continuity between the connector pins 192
- Continuity no continuity 192
- Normal 192
- Af indoor unit drain level above limit 193
- Applicable models 193
- Fxcq fxfq fxzq fxsq fxkq fxmq fxdq fxmq mf fxuq 193
- Humidifier unit optional accessory leaking defect of drain pipe upward slope etc defect of indoor unit pc board 193
- Malfunction decision conditions 193
- Method of malfunction detection 193
- Remote controller display 193
- Supposed causes 193
- Troubleshooting 193
- Troubleshooting by indication on the remote controller sie39 404 193
- Water leakage is detected based on float switch on off operation while the compressor is in non operation 193
- When the float switch changes from on to off while the compressor is in non operation 193
- Aj indoor unit malfunction of capacity determination device 194
- All indoor unit models 194
- Applicable models 194
- Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the ic memory on the indoor unit pc board and whether the value is normal or abnormal is determined 194
- Malfunction decision conditions 194
- Method of malfunction detection 194
- Operation and 1 when the capacity code is not contained in the pc board s memory and the capacity setting adaptor is not connected 2 when a capacity that doesn t exist for that unit is set 194
- Remote controller display 194
- Sie39 404 troubleshooting by indication on the remote controller 194
- Supposed causes 194
- Troubleshooting 194
- Troubleshooting 183 194
- You have forgotten to install the capacity setting adaptor defect of indoor unit pc board 194
- 2 refer to thermistor resistance temperature characteristics table on p311 195
- All indoor unit models 195
- Applicable models 195
- C4 indoor unit malfunction of thermistor r2t for heat exchanger 195
- Defect of thermistor r2t for liquid pipe defect of indoor unit pc board 195
- Malfunction decision conditions 195
- Malfunction detection is carried out by temperature detected by heat exchanger thermistor 195
- Method of malfunction detection 195
- Remote controller display 195
- Supposed causes 195
- Troubleshooting 195
- Troubleshooting by indication on the remote controller sie39 404 195
- When the heat exchanger thermistor becomes disconnected or shorted while the unit is running 195
- 2 refer to thermistor resistance temperature characteristics table on p311 196
- All indoor unit models 196
- Applicable models 196
- C5 indoor unit malfunction of thermistor r3t for gas pipes 196
- Defect of indoor unit thermistor r3t for gas pipe defect of indoor unit pc board 196
- Malfunction decision conditions 196
- Malfunction detection is carried out by temperature detected by gas pipe thermistor 196
- Method of malfunction detection 196
- Remote controller display 196
- Sie39 404 troubleshooting by indication on the remote controller 196
- Supposed causes 196
- Troubleshooting 196
- Troubleshooting 185 196
- When the gas pipe thermistor becomes disconnected or shorted while the unit is running 196
- 2 refer to thermistor resistance temperature characteristics table on p311 197
- Aii indoor unit models 197
- Applicable models 197
- C9 indoor unit malfunction of thermistor r1t for suction air 197
- Defect of indoor unit thermistor r1t for air inlet defect of indoor unit pc board 197
- Malfunction decision conditions 197
- Malfunction detection is carried out by temperature detected by suction air temperature thermistor 197
- Method of malfunction detection 197
- Remote controller display 197
- Supposed causes 197
- Troubleshooting 197
- Troubleshooting by indication on the remote controller sie39 404 197
- When the suction air temperature thermistor becomes disconnected or shorted while the unit is running 197
- 2 refer to thermistor resistance temperature characteristics table on p311 198
- Aii indoor unit models 198
- Applicable models 198
- Cj indoor unit malfunction of thermostat sensor in remote controller 198
- Defect of remote controller thermistor defect of remote controller pc board 198
- Malfunction decision conditions 198
- Malfunction detection is carried out by temperature detected by remote controller air temperature thermistor note1 198
- Method of malfunction detection 198
- Note in case of remote controller thermistor malfunction unit is still operable by suction air thermistor on indoor unit 198
- Remote controller display 198
- Sie39 404 troubleshooting by indication on the remote controller 198
- Supposed causes 198
- Troubleshooting 198
- Troubleshooting 187 198
- When the remote controller air temperature thermistor becomes disconnected or shorted while the unit is running 198
- Applicable models 199
- Check data from e²prom 199
- Defect of outdoor unit pc board a1p 199
- E1 outdoor unit pc board defect 199
- Malfunction decision conditions 199
- Method of malfunction detection 199
- Remote controller display 199
- Rxyq5 48m 199
- Supposed causes 199
- Troubleshooting 199
- Troubleshooting by indication on the remote controller sie39 404 199
- When data could not be correctly received from the e²prom e²prom type of nonvolatile memory maintains memory contents even when the power supply is turned off 199
- Abnormality is detected when the contact of the high pressure protection switch opens 200
- Actuation of outdoor unit high pressure switch defect of high pressure switch defect of outdoor unit pc board instantaneous power failure faulty high pressure sensor 200
- Applicable models 200
- E3 outdoor unit actuation of high pressure switch 200
- Error is generated when the hps activation count reaches the number specific to the operation mode 200
- H 1 actuation of high pressure switch hps the outdoor unit pc board s connector is disconnected is the outdoor unit heat exchanger dirty defect of outdoor fan is the refrigerant over charged faulty high pressure sensor 200
- Malfunction decision conditions 200
- Method of malfunction detection 200
- Remote controller display 200
- Rxyq5 48m 200
- Sie39 404 troubleshooting by indication on the remote controller 200
- Supposed causes 200
- Troubleshooting 200
- Troubleshooting 189 200
- 1 voltage measurement point 201
- 2 refer to pressure sensor pressure voltage characteristics table on p313 201
- Abnormal drop of low pressure lower than 0 7mpa defect of low pressure sensor defect of outdoor unit pc board stop valve is not opened 201
- Applicable models 201
- E4 outdoor unit actuation of low pressure sensor 201
- Error is generated when the low pressure is dropped under specific pressure 201
- Malfunction decision conditions 201
- Method of malfunction detection 201
- Remote controller display 201
- Rxyq5 48m 201
- Supposed causes 201
- Troubleshooting 201
- Troubleshooting by indication on the remote controller sie39 404 201
- Applicable models 202
- Compressor lock high differential pressure 0 mpa or more incorrect uvwn wiring faulty inverter pc board stop valve is left in closed 202
- E5 compressor motor lock 202
- Inverter pc board takes the position signal from uvwn line connected between the inverter and compressor and detects the position signal pattern 202
- Malfunction decision conditions 202
- Method of malfunction detection 202
- Remote controller display 202
- Rxyq5 48m 202
- Sie39 404 troubleshooting by indication on the remote controller 202
- Supposed causes 202
- The position signal with 3 times cycle as imposed frequency is detected when compressor motor operates normally but 2 times cycle when compressor motor locks when the position signal in 2 times cycle is detected 202
- Troubleshooting 202
- Troubleshooting 191 202
- Applicable models 203
- Closed stop value obstacles at the discharge port improper power voltage faulty magnetic switch faulty compressor 203
- Detects the overcurrent with current sensor ct 203
- E6 compressor motor overcurrent lock 203
- Malfunction decision conditions 203
- Malfunction is decided when the detected current value exceeds the below mentioned value for 2 seconds 400 v unit 15 a 203
- Method of malfunction detection 203
- Outdoor unit 203
- Remote controller display 203
- Supposed causes 203
- Troubleshooting 203
- Troubleshooting by indication on the remote controller sie39 404 203
- Applicable models 204
- E7 malfunction of outdoor unit fan motor 204
- Malfunction decision conditions 204
- Malfunction of fan motor system is detected according to the fan speed detected by hall ic when the fan motor runs 204
- Malfunction of fan motor the harness connector between fan motor and pc board is left in disconnected or faulty connector fan does not run due to foreign matters tangled clearing condition operate for 5 minutes normal 204
- Method of malfunction detection 204
- Remote controller display 204
- Rxyq5 48m 204
- Sie39 404 troubleshooting by indication on the remote controller 204
- Supposed causes 204
- Troubleshooting 204
- Troubleshooting 193 204
- When the fan runs with speed less than a specified one for 15 seconds or more when the fan motor running conditions are met when connector detecting fan speed is disconnected when malfunction is generated 4 times the system shuts down 204
- Note refer check 8 9 and 12 to p 5 205
- Troubleshooting 205
- Troubleshooting by indication on the remote controller sie39 404 205
- Applicable models 206
- Check disconnection of connector check continuity of expansion valve coil 206
- Defect of moving part of electronic expansion valve defect of outdoor unit pc board a1p defect of connecting cable 206
- E9 outdoor unit malfunction of moving part of electronic expansion valve y1e y2e 206
- Error is generated under no common power supply when the power is on 206
- Malfunction decision conditions 206
- Method of malfunction detection 206
- Remote controller display 206
- Rxyq5 48m 206
- Sie39 404 troubleshooting by indication on the remote controller 206
- Supposed causes 206
- Troubleshooting 206
- Troubleshooting 195 206
- 1 coil check method for the moving part of the electronic expansion valve disconnect the electronic expansion valve from the pc board and check the continuity between the connector pins 207
- Continuity approx 300 ω continuity approx 150 ω no continuity 207
- Normal 207
- 2 refer to thermistor resistance temperature characteristics table on p311 208
- Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor 208
- Applicable models 208
- F3 outdoor unit abnormal discharge pipe temperature 208
- Faulty discharge pipe temperature sensor faulty connection of discharge pipe temperature sensor faulty outdoor unit pcb 208
- Malfunction decision conditions 208
- Method of malfunction detection 208
- Remote controller display 208
- Rxyq5 48m 208
- Sie39 404 troubleshooting by indication on the remote controller 208
- Supposed causes 208
- Troubleshooting 208
- Troubleshooting 197 208
- When the discharge pipe temperature rises to an abnormally high level when the discharge pipe temperature rises suddenly 208
- Applicable models 209
- F6 refrigerant overcharged 209
- Malfunction decision conditions 209
- Method of malfunction detection 209
- Refrigerant overcharge disconnection of the receiver gas pipe thermistor 209
- Refrigerant overcharge is detected from the receiver gas pipe temperature during test operation 209
- Remote controller display 209
- Rxyq5 48m 209
- Supposed causes 209
- Troubleshooting 209
- Troubleshooting by indication on the remote controller sie39 404 209
- When the receiver gas pipe temperature is lower than evaporating temperature during test operation 209
- Abnormal fan motor signal circuit malfunction broken short or disconnection connector of fan motor connection cable fan inverter pc board malfunction 210
- Applicable models 210
- Detection of abnormal signal from fan motor 210
- H 1 disconnect connector x2a and measure the following resistance 210
- H7 abnormal outdoor fan motor signal 210
- In case of detection of abnormal signal at starting fan motor 210
- Malfunction decision conditions 210
- Method of malfunction detection 210
- Remote controller display 210
- Rxyq5 48m 210
- Sie39 404 troubleshooting by indication on the remote controller 210
- Supposed causes 210
- Troubleshooting 210
- Troubleshooting 199 210
- 2 refer to thermistor resistance temperature characteristics table on p311 211
- Applicable models 211
- Defect of thermistor r1t for outdoor air defect of outdoor unit pc board a1p 211
- H9 outdoor unit malfunction of thermistor for outdoor air r1t 211
- Malfunction decision conditions 211
- Method of malfunction detection 211
- Remote controller display 211
- Rxyq5 48m 211
- Supposed causes 211
- The abnormal detection is based on current detected by current sensor 211
- The alarm indicator is displayed when the fan only is being used also 211
- Troubleshooting 211
- Troubleshooting by indication on the remote controller sie39 404 211
- When the outside air temperature sensor has short circuit or open circuit 211
- Applicable models 212
- Faulty current sensor faulty outdoor unit pc board 212
- J2 current sensor malfunction 212
- Malfunction decision conditions 212
- Malfunction is detected according to the current value detected by current sensor 212
- Method of malfunction detection 212
- Remote controller display 212
- Rxyq5 48m 212
- Sie39 404 troubleshooting by indication on the remote controller 212
- Supposed causes 212
- Troubleshooting 212
- Troubleshooting 201 212
- When the current value detected by current sensor becomes 5a or lower or 40a or more during standard compressor operation 212
- Applicable models 213
- Defect of thermistor r31t r32t or r33t for outdoor unit discharge pipe defect of outdoor unit pc board a1p 213
- J3 outdoor unit malfunction of discharge pipe thermistor r3 r31 33t 213
- Malfunction decision conditions 213
- Malfunction is detected from the temperature detected by discharge pipe temperature thermistor 213
- Method of malfunction detection 213
- Note 5 hp class r3t 8 12 hp class r31t r32t 14 16hp class r31t r32t and r33t 213
- Remote controller display 213
- Rxyq5 48m 213
- Supposed causes 213
- The alarm indicator is displayed when the fan is being used also 213
- Troubleshooting 213
- Troubleshooting by indication on the remote controller sie39 404 213
- When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected 213
- 2 refer to thermistor resistance temperature characteristics table on p311 214
- Applicable models 214
- Defect of thermistor r2t for outdoor unit suction pipe defect of outdoor unit pc board a1p 214
- J5 outdoor unit malfunction of thermistor r2t for suction pipe 214
- Malfunction decision conditions 214
- Malfunction is detected from the temperature detected by the suction pipe temperature thermistor 214
- Method of malfunction detection 214
- Remote controller display 214
- Rxyq5 48m 214
- Sie39 404 troubleshooting by indication on the remote controller 214
- Supposed causes 214
- Troubleshooting 214
- Troubleshooting 203 214
- When a short circuit or an open circuit in the suction pipe temperature thermistor is detected 214
- 2 refer to thermistor resistance temperature characteristics table on p311 215
- Applicable models 215
- Defect of thermistor r4t for outdoor unit coil defect of outdoor unit pc board a1p 215
- J6 outdoor unit malfunction of thermistor r4t for outdoor unit heat exchanger 215
- Malfunction decision conditions 215
- Malfunction is detected from the temperature detected by the heat exchanger thermistor 215
- Method of malfunction detection 215
- Remote controller display 215
- Rxyq5 48m 215
- Supposed causes 215
- Troubleshooting 215
- Troubleshooting by indication on the remote controller sie39 404 215
- When a short circuit or an open circuit in the heat exchange thermistor is detected 215
- 2 refer to thermistor resistance temperature characteristics table on p311 216
- Applicable models 216
- Faulty oil equalizing pipe thermistor r7t faulty outdoor unit pc board 216
- J8 malfunction of oil equalizing pipe thermistor r7t 216
- Malfunction decision conditions 216
- Malfunction is detected according to the temperature detected by oil equalizing pipe thermistor 216
- Method of malfunction detection 216
- Remote controller display 216
- Rxyq5 48m 216
- Sie39 404 troubleshooting by indication on the remote controller 216
- Supposed causes 216
- Troubleshooting 216
- Troubleshooting 205 216
- When the oil equalizing pipe thermistor is short circuited or open 216
- 2 refer to thermistor resistance temperature characteristics table on p311 217
- Applicable models 217
- Faulty receiver gas pipe thermistor r5t faulty outdoor unit pc board 217
- J9 malfunction of receiver gas pipe thermistor r5t 217
- Malfunction decision conditions 217
- Malfunction is detected according to the temperature detected by receiver gas pipe thermistor 217
- Method of malfunction detection 217
- Remote controller display 217
- Rxyq5 48m 217
- Supposed causes 217
- Troubleshooting 217
- Troubleshooting by indication on the remote controller sie39 404 217
- When the receiver gas pipe thermistor is short circuited or open 217
- 1 voltage measurement point 218
- 2 refer to pressure sensor pressure voltage characteristics table on p313 218
- Applicable models 218
- Defect of high pressure sensor system connection of low pressure sensor with wrong connection defect of outdoor unit pc board 218
- Ja outdoor unit malfunction of discharge pipe pressure sensor 218
- Malfunction decision conditions 218
- Malfunction is detected from the pressure detected by the high pressure sensor 218
- Method of malfunction detection 218
- Remote controller display 218
- Rxyq5 48m 218
- Sie39 404 troubleshooting by indication on the remote controller 218
- Supposed causes 218
- Troubleshooting 218
- Troubleshooting 207 218
- When the discharge pipe pressure sensor is short circuit or open circuit 218
- 1 voltage measurement point 219
- 2 refer to pressure sensor pressure voltage characteristics table on p313 219
- Applicable models 219
- Defect of low pressure sensor system connection of high pressure sensor with wrong connection defect of outdoor unit pc board 219
- Jc outdoor unit malfunction of suction pipe pressure sensor 219
- Malfunction decision conditions 219
- Malfunction is detected from pressure detected by low pressure sensor 219
- Method of malfunction detection 219
- Remote controller display 219
- Rxyq5 48m 219
- Supposed causes 219
- Troubleshooting 219
- Troubleshooting by indication on the remote controller sie39 404 219
- When the suction pipe pressure sensor is short circuit or open circuit 219
- 2 refer to thermistor resistance temperature characteristics table on p311 220
- Actuation of fin thermal actuates above 89 c defect of inverter pc board defect of fin thermistor 220
- Applicable models 220
- Fin temperature is detected by the thermistor of the radiation fin 220
- L4 outdoor unit malfunction of inverter radiating fin temperature rise 220
- Malfunction decision conditions 220
- Method of malfunction detection 220
- Remote controller display 220
- Rxyq5 48m 220
- Sie39 404 troubleshooting by indication on the remote controller 220
- Supposed causes 220
- Troubleshooting 220
- Troubleshooting 209 220
- When the temperature of the inverter radiation fin increases above 89 c 220
- Applicable models 221
- Compressor inspection 221
- Defect of compressor coil disconnected defective insulation compressor start up malfunction mechanical lock defect of inverter pc board 221
- Higher voltage than actual is displayed when the inverter output voltage is checked by tester 221
- L5 outdoor unit inverter compressor abnormal 221
- Malfunction decision conditions 221
- Malfunction is detected from current flowing in the power transistor 221
- Method of malfunction detection 221
- Remote controller display 221
- Rxyq5 48m 221
- Supposed causes 221
- Troubleshooting 221
- Troubleshooting by indication on the remote controller sie39 404 221
- When an excessive current flows in the power transistor instantaneous overcurrent also causes activation 221
- Applicable models 222
- Compressor overload compressor coil disconnected defect of inverter pc board 222
- L8 outdoor unit inverter current abnormal 222
- Malfunction decision conditions 222
- Malfunction is detected by current flowing in the power transistor 222
- Method of malfunction detection 222
- Output current check 222
- Remote controller display 222
- Rxyq5 48m 222
- Sie39 404 troubleshooting by indication on the remote controller 222
- Supposed causes 222
- Troubleshooting 222
- Troubleshooting 211 222
- When overload in the compressor is detected 222
- Applicable models 223
- Defect of compressor pressure differential start defect of inverter pc board 223
- L9 outdoor unit inverter start up error 223
- Malfunction decision conditions 223
- Malfunction is detected from current flowing in the power transistor 223
- Method of malfunction detection 223
- Remote controller display 223
- Rxyq5 48m 223
- Supposed causes 223
- Troubleshooting 223
- Troubleshooting by indication on the remote controller sie39 404 223
- When overload in the compressor is detected during startup 223
- Applicable models 224
- Lc outdoor unit malfunction of transmission between inverter and control pc board 224
- Malfunction decision conditions 224
- Method of malfunction detection 224
- Remote controller display 224
- Supposed causes 224
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 225
- Caution 225
- Troubleshooting 225
- Troubleshooting by indication on the remote controller sie39 404 225
- Applicable models 226
- Imbalance in supply voltage is detected in pc board 226
- Malfunction decision conditions 226
- Method of malfunction detection 226
- Open phase voltage imbalance between phases defect of main circuit capacitor defect of inverter pc board defect of k1m improper main circuit wiring 226
- P1 outdoor unit inverter over ripple protection 226
- Remote controller display 226
- Rxyq5 48m 226
- Sie39 404 troubleshooting by indication on the remote controller 226
- Supposed causes 226
- Troubleshooting 226
- Troubleshooting 215 226
- When the resistance value of thermistor becomes a value equivalent to open or short circuited status malfunction is not decided while the unit operation is continued p1 will be displayed by pressing the inspection button 226
- 2 refer to thermistor resistance temperature characteristics table on p311 227
- Applicable models 227
- Defect of radiator fin temperature sensor defect of inverter pc board 227
- Malfunction decision conditions 227
- Method of malfunction detection 227
- P4 outdoor unit malfunction of inverter radiating fin temperature rise sensor 227
- Remote controller display 227
- Resistance of radiation fin thermistor is detected when the compressor is not operating 227
- Rxyq5 48m 227
- Supposed causes 227
- Troubleshooting 227
- Troubleshooting by indication on the remote controller sie39 404 227
- When the resistance value of thermistor becomes a value equivalent to open or short circuited status malfunction is not decided while the unit operation is continued p4 will be displayed by pressing the inspection button 227
- 1 refer to thermistor resistance temperature characteristics table on p311 2 refer to pressure sensor pressure voltage characteristics table on p313 228
- Applicable models 228
- Malfunction decision conditions 228
- Method of malfunction detection 228
- Microcomputer judge and detect if the system is short of refrigerant h malfunction is not decided while the unit operation is continued 228
- Out of gas or refrigerant system clogging incorrect piping defect of pressure sensor defect of outdoor unit pc board a1p defect of thermistor r2t or r4t 228
- Remote controller display 228
- Rxyq5 48m 228
- Short of gas malfunction is detected by discharge pipe temperature thermistor 228
- Sie39 404 troubleshooting by indication on the remote controller 228
- Supposed causes 228
- Troubleshooting 228
- Troubleshooting 217 228
- Uo low pressure drop due to refrigerant shortage or electronic expansion valve failure 228
- Applicable models 229
- Detection is based on the voltage in main circuit capacitor for inverter and supply voltage the phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged 229
- H 3 phase outdoor unit only 229
- Malfunction decision conditions 229
- Method of malfunction detection 229
- Power supply reverse phase power supply open phase defect of outdoor pc board a1p 229
- Remote controller display 229
- Supposed causes 229
- Troubleshooting 229
- Troubleshooting by indication on the remote controller sie39 404 229
- U1 reverse phase open phase 229
- Applicable models 230
- Malfunction decision conditions 230
- Method of malfunction detection 230
- Remote controller display 230
- Supposed causes 230
- U2 power supply insufficient or instantaneous failure 230
- Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 231
- Troubleshooting 231
- Troubleshooting by indication on the remote controller sie39 404 231
- Applicable models 232
- Check operation is executed or not 232
- Check operation is not executed 232
- Malfunction decision conditions 232
- Malfunction is decided when the unit starts operation without check operation 232
- Method of malfunction detection 232
- Remote controller display 232
- Rxyq5 48m 232
- Sie39 404 troubleshooting by indication on the remote controller 232
- Supposed causes 232
- Troubleshooting 232
- Troubleshooting 221 232
- U3 check operation not executed 232
- Applicable models 233
- Malfunction decision conditions 233
- Method of malfunction detection 233
- Remote controller display 233
- Supposed causes 233
- U4 malfunction of transmission between indoor units 233
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 234
- Sie39 404 troubleshooting by indication on the remote controller 234
- Troubleshooting 234
- Troubleshooting 223 234
- All models of indoor units 235
- Applicable models 235
- In case of controlling with 2 remote controller check the system using microcomputer is signal transmission between indoor unit and remote controller main and sub is normal 235
- Malfunction decision conditions 235
- Malfunction of indoor unit remote controller transmission connection of two main remote controllers when using 2 remote controllers defect of indoor unit pc board defect of remote controller pc board malfunction of transmission caused by noise 235
- Method of malfunction detection 235
- Normal transmission does not continue for specified period 235
- Remote controller display 235
- Supposed causes 235
- Troubleshooting 235
- Troubleshooting by indication on the remote controller sie39 404 235
- U5 malfunction of transmission between remote controller and indoor unit 235
- Applicable models 236
- Malfunction decision conditions 236
- Method of malfunction detection 236
- Remote controller display 236
- Supposed causes 236
- U7 malfunction of transmission between outdoor units 236
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 237
- Troubleshooting 237
- Troubleshooting by indication on the remote controller sie39 404 237
- All models of indoor units 238
- Applicable models 238
- In case of controlling with 2 remote controller check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal 238
- Malfunction decision conditions 238
- Malfunction of transmission between main and sub remote controller connection between sub remote controllers defect of remote controller pc board 238
- Method of malfunction detection 238
- Normal transmission does not continue for specified period 238
- Remote controller display 238
- Sie39 404 troubleshooting by indication on the remote controller 238
- Supposed causes 238
- Troubleshooting 238
- Troubleshooting 227 238
- U8 malfunction of transmission between master and slave remote controllers 238
- U9 malfunction of transmission between indoor and outdoor units in the same system 239
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 240
- Caution 240
- Sie39 404 troubleshooting by indication on the remote controller 240
- Troubleshooting 240
- Troubleshooting 229 240
- All models of indoor unit rxyq5 48m 241
- Applicable models 241
- Excess of connected indoor units defect of outdoor unit pc board a1p mismatching of the refrigerant type of indoor and outdoor unit setting of outdoor p c board was not conducted after replacing to spare parts p c board 241
- Malfunction decision conditions 241
- Method of malfunction detection 241
- Remote controller display 241
- Supposed causes 241
- The number of indoor units that can be connected to a single outdoor unit system depends on the type of outdoor unit 241
- Troubleshooting 241
- Troubleshooting by indication on the remote controller sie39 404 241
- Ua excessive number of indoor units 241
- Address duplication of centralized remote controller defect of indoor unit pc board 242
- All models of indoor unit centralized controller 242
- Applicable models 242
- Malfunction decision conditions 242
- Method of malfunction detection 242
- Remote controller display 242
- Sie39 404 troubleshooting by indication on the remote controller 242
- Supposed causes 242
- Troubleshooting 242
- Troubleshooting 231 242
- Uc address duplication of central remote controller 242
- Applicable models 243
- Malfunction decision conditions 243
- Method of malfunction detection 243
- Remote controller display 243
- Supposed causes 243
- Ue malfunction of transmission between central remote controller and indoor unit 243
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 244
- Sie39 404 troubleshooting by indication on the remote controller 244
- Troubleshooting 244
- Troubleshooting 233 244
- All models of indoor units rxyq5 48m 245
- Applicable models 245
- Improper connection of transmission wiring between outdoor unit and outdoor unit outside control adaptor failure to execute wiring check operation defect of indoor unit pc board 245
- Malfunction decision conditions 245
- Method of malfunction detection 245
- Note test operation may not be successful if carried out after the outdoor unit has been off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour 245
- Remote controller display 245
- Supposed causes 245
- Troubleshooting 245
- Troubleshooting by indication on the remote controller sie39 404 245
- Uf refrigerant system not set incompatible wiring piping 245
- All models of indoor units rxyq5 48m 246
- Applicable models 246
- Improper connection of transmission wiring between outdoor unit and outdoor unit outside control adaptor defect of indoor unit pc board defect of outdoor unit pc board a1p 246
- Malfunction decision conditions 246
- Method of malfunction detection 246
- Remote controller display 246
- Sie39 404 troubleshooting by indication on the remote controller 246
- Supposed causes 246
- Troubleshooting 246
- Troubleshooting 235 246
- Uh malfunction of system refrigerant system address undefined 246
- All models of indoor units rxyq5 48m 247
- Applicable models 247
- Malfunction decision conditions 247
- Malfunction of transmission between optional controllers for centralized control and indoor unit connector for setting master controller is disconnected failure of pc board for central remote controller defect of indoor unit pc board 247
- Method of malfunction detection 247
- Microcomputer checks if transmission between indoor unit and central remote controller is normal 247
- Remote controller display 247
- Supposed causes 247
- Troubleshooting 247
- Troubleshooting op central remote controller 247
- Ue malfunction of transmission between central remote controller and indoor unit 247
- When transmission is not carried out normally for a certain amount of time 247
- M1 pc board defect 248
- Applicable models 249
- Centralized remote controller 249
- M8 malfunction of transmission between optional controllers for centralized control 249
- Malfunction decision conditions 249
- Malfunction of transmission between optional controllers for centralized control defect of pc board of optional controllers for centralized control 249
- Method of malfunction detection 249
- Remote controller display 249
- Supposed causes 249
- Troubleshooting 249
- Troubleshooting op central remote controller sie39 404 249
- Ma improper combination of optional controllers for centralized control 250
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 251
- Caution 251
- Troubleshooting 251
- Troubleshooting op central remote controller sie39 404 251
- Address duplication of centralized remote controller 252
- Applicable models 252
- Central remote controller 252
- Malfunction decision conditions 252
- Mc address duplication improper setting 252
- Method of malfunction detection 252
- Remote controller display 252
- Sie39 404 troubleshooting op central remote controller 252
- Supposed causes 252
- Troubleshooting 252
- Troubleshooting 241 252
- Troubleshooting op schedule timer 253
- Ue malfunction of transmission between central remote controller and indoor unit 253
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 254
- Caution 254
- Sie39 404 troubleshooting op schedule timer 254
- Troubleshooting 254
- Troubleshooting 243 254
- Applicable models 255
- Defect of schedule timer pc board 255
- M1 pc board defect 255
- Malfunction decision conditions 255
- Method of malfunction detection 255
- Remote controller display 255
- Schedule timer 255
- Supposed causes 255
- Troubleshooting 255
- Troubleshooting op schedule timer sie39 404 255
- All models of indoor units schedule timer 256
- Applicable models 256
- M8 malfunction of transmission between optional controllers for centralized control 256
- Malfunction decision conditions 256
- Malfunction of transmission between optional controllers for centralized control defect of pc board of optional controllers for centralized control 256
- Method of malfunction detection 256
- Remote controller display 256
- Sie39 404 troubleshooting op schedule timer 256
- Supposed causes 256
- Troubleshooting 256
- Troubleshooting 245 256
- Ma improper combination of optional controllers for centralized control 257
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 258
- Sie39 404 troubleshooting op schedule timer 258
- Troubleshooting 258
- Troubleshooting 247 258
- Address duplication of optional controller for centralized control 259
- All models of indoor units schedule timer 259
- Applicable models 259
- Malfunction decision conditions 259
- Mc address duplication improper setting 259
- Method of malfunction detection 259
- Remote controller display 259
- Supposed causes 259
- Troubleshooting 259
- Troubleshooting op schedule timer sie39 404 259
- Operation lamp blinks 260
- Troubleshooting op unified on off controller 260
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred caution 261
- Troubleshooting 261
- Troubleshooting op unified on off controller sie39 404 261
- Display under host computer integrate control blinks repeats single blink 262
- Be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred 263
- Caution 263
- Troubleshooting 263
- Troubleshooting op unified on off controller sie39 404 263
- Sie39 404 troubleshooting op unified on off controller 264
- Troubleshooting 253 264
- Applicable models 265
- Central control address group no is not set for indoor unit improper address setting improper wiring of transmission wiring 265
- Display under host computer integrate control blinks repeats double blink 265
- Malfunction decision conditions 265
- Method of malfunction detection 265
- Remote controller display 265
- Supposed causes 265
- Troubleshooting 265
- Troubleshooting op unified on off controller sie39 404 265
- Under host computer integrated control repeats double blink 265
- Unified on off controller 265
- 1 turn off the power supply 2 measure the resistance between vcc and each phase of u v w and gnd and each phase at the motor side connectors five core wire to check that the values are balanced within the range of 20 while connector or relay connector is disconnected 266
- Check no 8 266
- Check no 9 266
- Check on connector of fan motor power supply cable 1 turn off the power supply measure the resistance between phases of u v w at the motor side connectors three core wire to check that the values are balanced and there is no short circuiting while connector or relay connector is disconnected 266
- Sie39 404 troubleshooting op unified on off controller 266
- Troubleshooting 255 266
- Check no 12 267
- Check on pulse input of position signal of fan inverter pcb 1 disconnect the connector x2a while power supply off and operation off 2 is the voltage between pins no 4 and 5 on x2a approx 15 v after power supply is turned on 3 connect the connector x2a while power supply off and operation off 4 check below conditions when the fan motor is rotated one turn manually under the condition of operation off after power supply is turned on are the pulse approx 0 v and 5 v generated 4 times between no 1 and 5 on x2a are the pulse approx 0 v and 5 v generated 4 times between no 2 and 5 on x2a are the pulse approx 0 v and 5 v generated 4 times between no 3 and 5 on x2a 267
- The condition 2 dose not appear faulty pcb replacing the pcb the conditions 4 do not appear faulty hall ic replacing fan motor of outdoor unit 267
- Troubleshooting 267
- Troubleshooting op unified on off controller sie39 404 267
- 1 collect the refrigerant by using refrigerant recovery unit since the setting on outdoor unit pcb is required for refrigerant recovery refer to the warning plate precautions in service work attached on the switch box cover 2 remove the sound insulator mat covering the faulty compressor and disconnect the power cable from terminal board of the compressor 3 disconnect the brazing sections of suction pipe and discharge pipe by using brazing torch after the refrigerant has been collected completely 4 pinch the oil pressure equalizing pipe of the faulty compressor at the lower part of the brazed joint as shown in figure 1 and cut it between the pinched section and brazed joint in order to prevent residual oil from discharging 5 remove three bolts at cushion rubber section to take out the faulty compressor outside the unit 6 check that no oil remains in the oil pressure equalizing pipe as shown in figure 2 then remove the cut pipe from the brazed joint with brazing torch 7 install the new c 269
- Replacement procedure 269
- Replacement procedure for inv compressor vrv ii rxyq5m 48m 269
- Replacement procedure for inv compressor vrv ii rxyq5m 48m sie39 404 269
- Replacement procedure for inv compressor vrv ii rxyq5m to 48m 269
- List of electrical and functional parts 93 270
- Option list 01 270
- Part 8 appendix 270
- Piping diagrams 60 270
- Piping installation point 04 270
- Selection of pipe size joints and header 06 270
- Thermistor resistance temperature characteristics 11 8 pressure sensor 13 9 method of replacing the inverter s power transistors and diode modules 14 270
- Wiring diagrams for reference 69 270
- Outdoor unit 271
- Piping diagrams 271
- Rxyq5my1b 271
- Appendix 261 272
- Rxyq8my1b rxyq10my1b rxyq12my1b 272
- Sie39 404 piping diagrams 272
- Rxyq14my1b rxyq16my1b 273
- Indoor unit 274
- Appendix 275
- Mm model gas liquid fxdq20n 25n 32n 40n 50nve φ 12 φ 6 fxdq63nve φ 15 φ 9 275
- Piping diagrams sie39 404 275
- Refrigerant pipe connection port diameters 275
- Appendix 265 276
- Fxmq125 200 250mfv1 276
- Mm model gas liquid fxmq125mfv1 φ 15 φ 9 fxmq200mfv1 φ 19 φ 9 fxmq250mfv1 φ 22 φ 9 276
- Refrigerant pipe connection port diameters 276
- Sie39 404 piping diagrams 276
- Appendix 269 280
- Outdoor unit 280
- Rxyq5my1b 280
- Sie39 404 wiring diagrams for reference 280
- Wiring diagrams for reference 280
- Appendix 281
- D44772 281
- Rxyq8my1b rxyq10my1b rxyq12my1b 281
- Wiring diagrams for reference sie39 404 281
- Appendix 271 282
- D04477 3 282
- Rxyq14my1b rxyq16my1b 282
- Sie39 404 wiring diagrams for reference 282
- Appendix 283
- Field wiring 283
- Rxyq5 16my1b 283
- Wiring diagrams for reference sie39 404 283
- Appendix 273 284
- D040747b 284
- Rxyq18 20 22 24 26 28 30 32my1b 284
- Sie39 404 wiring diagrams for reference 284
- Appendix 285
- D04074 8 b 285
- Rxyq34 36 38 40 42 44 46 48my1b 285
- Wiring diagrams for reference sie39 404 285
- Appendix 275 286
- Fxcq20m 25m 32m 63mve 286
- Indoor unit 286
- Note s 286
- Sie39 404 wiring diagrams for reference 286
- Termin a l b lock connector termin a l 2 field wiring 3 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s tr u ction m a n ua l 4 x2 3 a i s connected when the infr a red remote control kit i s b eing us ed 5 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 6 s ym b ol s s how s as follow s pnk pink wht white ylw yellow org or a nge blu b l u e blk b l a ck red red brn b rown grn green 286
- 240v 50hz 287
- Appendix 287
- D0 3 9557a 287
- Electric p a rt s b ox 287
- Fxcq40m 50m 80m 125mve 287
- Infr a red remote control option a l a cce ss ory 287
- Note 4 287
- Note 4 receiver di s pl a y u nit infr a red remote control 287
- Note 5 inp u t from o u t s ide note 3 tr a n s mi ss ion wiring centr a l remote control 287
- Note s 287
- Power su pply 287
- Termin a l b lock connector termin a l 2 field wiring 3 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s tr u ction m a n ua l 4 x2 3 a i s connected when the infr a red remote control kit i s b eing us ed 5 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 6 s ym b ol s s how s as follow s pnk pink wht white ylw yellow org or a nge blu b l u e blk b l a ck red red brn b rown grn green 7 u s e copper cond u ctor s only 287
- V 60hz 287
- Wiring diagrams for reference sie39 404 287
- 240v 50hz 288
- Appendix 277 288
- Connector 288
- Field wiring field wiring 2 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s t a ll a tion m a n ua l 3 x2 3 a i s connected when the infr a red remote control kit i s b eing us ed 4 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 5 remote control model v a rie s a ccording to de com b in a tion s y s tem confirm engineering m a teri a l s a nd c a t a log s etc b efore connecting 6 s ym b ol s s how s as follow s red red blk b l a ck wht white ylw yellow pnk pink org or a nge grn green blu b l u e 288
- Fxzq20m 25m 32m 40m 50mve 288
- Inp u t from o u t s ide note 4 288
- Note 3 288
- Note s 1 termin a l 288
- Power su pply 288
- Receiver di s pl a y u nit 288
- Sie39 404 wiring diagrams for reference 288
- Tr a n s mi ss ion wiring centr a l remote control note 2 288
- V 60hz note 3 288
- Wired remote control 288
- 240v 50hz 289
- Appendix 289
- Fxfq25m 32m 40m 50m 63m 80m 100m 125mve 289
- Inp u t from o u t s ide note 4 289
- Note 3 289
- Note s 1 termin a l b lock connector field wiring 2 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s t a ll a tion m a n ua l 3 x24a i s connected when the infr a red remote control kit i s b eing us ed 4 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 289
- Power su pply 289
- Receiver di s pl a y u nit infr a red remote control 289
- Remote control model v a rie s a ccording to de com b in a tion s y s tem confirm engineering m a teri a l s a nd c a t a log s etc b efore connecting 6 confirm the method of s etting the s elector s witch ss 1 ss 2 of wired remote control a nd infr a red remote control b y in s t a ll a tion m a n ua l a nd engineering d a t a etc 7 s ym b ol s s how s as follow s red red blk b l a ck wht white ylw yellow grn green org or a nge brn b rown pnk pink gry gr a y blu b l u e 289
- S witch b ox indoor u nit 289
- Tr a n s mi ss ion wiring centr a l remote control note 2 289
- V 60hz 289
- Wired remote control 289
- Wiring diagrams for reference sie39 404 289
- 240v 50hz 290
- Appendix 279 290
- Electric p a rt s b ox 290
- Fxkq25m 32m 40m 63mve 290
- Note 2 tr a n s mi ss ion wiring centr a l remote control 290
- Note 4 inp u t from o u t s ide 290
- Note 5 290
- Note s 290
- Power su pply 290
- Sie39 404 wiring diagrams for reference 290
- Termin a l b lock connector termin a l 2 field wiring 3 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s t a ll a tion m a n ua l 4 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 5 in c as e high e s p oper a tion ch a nge over the wiring connection from x2a to x 3 a 6 s ym b ol s s how s as follow s pnk pink wht white ylw yellow org or a nge blu b l u e blk b l a ck red red brn b rown gry gr a y 7 u s e copper cond u ctor s only 290
- V 60hz 290
- Wired remote control option a l a cce ss ory 290
- Appendix 291
- Fxdq20n 25n 32n 40n 50n 63nve 291
- Wiring diagrams for reference sie39 404 291
- Appendix 281 292
- Fxsq20m 25m 32m 40m 50m 63m 80m 100m 125mve 292
- Sie39 404 wiring diagrams for reference 292
- Appendix 293
- Fxmq40m 50m 63m 80m 100m 125mve 293
- Wiring diagrams for reference sie39 404 293
- Appendix 283 294
- Fxmq200m 250mve 294
- Sie39 404 wiring diagrams for reference 294
- Appendix 295
- Fxhq32m 63m 100mve 295
- Note s 1 termin a l b lock connector s hort circ u it connector 2 field wiring 3 in c as e us ing centr a l remote control connect it to the u nit in a ccord a nce with the a tt a ched in s tr u ction m a n ua l 4 x2 3 a i s connected when the infr a red remote control kit i s b eing us ed 5 when connecting the inp u t wire s from o u t s ide forced off or on off control oper a tion c a n b e s elected b y remote control in det a il s refer to the in s t a ll a tion m a n ua l a tt a ched the u nit 6 in c as e in s t a lling the dr a in p u mp remove the s hort circ u it connector of x 8 a a nd exec u te the a ddition a l wiring for flo a t s witch a nd dr a in p u mp 7 s ym b ol s s how s as follow s pnk pink wht white ylw yellow org or a nge blu b l u e blk b l a ck red red 8 u s e copper cond u ctor s only 295
- Wiring diagrams for reference sie39 404 295
- Appendix 285 296
- Fxaq20m 25m 32mve 40m 50m 63mve 296
- Sie39 404 wiring diagrams for reference 296
- Appendix 297
- Fxlq20m 25m 32m 40m 50m 63mve fxnq20m 25m 32m 40m 50m 63mve 297
- Wiring diagrams for reference sie39 404 297
- Appendix 287 298
- Fxuq71m 100m 125mv1 298
- Sie39 404 wiring diagrams for reference 298
- Appendix 299
- Fxaq20mh 25mh 32mh 40mh 50mhv1 299
- Wiring diagrams for reference sie39 404 299
- Appendix 289 300
- Fxlq20mh 25mh 32mh 40mh 50mhv1 300
- Sie39 404 wiring diagrams for reference 300
- Appendix 301
- Fxmq125mf 200mf 250mfv1 301
- Wiring diagrams for reference sie39 404 301
- Appendix 291 302
- Bevq50mve 302
- Sie39 404 wiring diagrams for reference 302
- Appendix 303
- Bevq71m 100m 125mve 303
- Wiring diagrams for reference sie39 404 303
- List of electrical and functional parts 304
- Outdoor unit 304
- Rxyq5 16my1b 304
- Valve in are for rxyq5my1b 304
- Appendix 295 306
- C off 87 c on 306
- Indoor side 306
- Indoor unit 306
- Sie39 404 list of electrical and functional parts 306
- Appendix 307
- List of electrical and functional parts sie39 404 307
- Appendix 297 308
- Sie39 404 list of electrical and functional parts 308
- Appendix 309
- K ω 25 c 309
- List of electrical and functional parts sie39 404 309
- St8602a 6 φ 6 309
- St8605 6 φ 8 309
- Μ f 400v 309
- Appendix 299 310
- Sie39 404 list of electrical and functional parts 310
- Appendix 311
- List of electrical and functional parts sie39 404 311
- Thermal protector 130 c off 83 c on 311
- 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 312
- Fxlq m h 312
- Note 1 installation box no is necessary for each adaptor marked 312
- Note 2 3 krp4a93 312
- Note 4 6 krp1b101 312
- Operation control system optional accessories 312
- Option list 312
- Option list of controllers 312
- Various pc boards 312
- Adaptor must be procured on site 313
- Appendix 313
- Building management system 313
- Is a registered trade mark of echelon corporation 313
- Is a registered trademark of american society of heating refrigerating and air conditioning engineers ashrae 313
- Note installation box for 313
- Option list sie39 404 313
- System configuration 313
- Appendix 303 314
- Option lists outdoor unit 314
- Rxyq18 32my1b 314
- Rxyq34 48my1b 314
- Rxyq5 16my1b 314
- Sie39 404 option list 314
- Piping installation point 315
- Good good 316
- The example of a wrong pattern 316
- Between outdoor unit and uppermost stream refnet joint 317
- For refnet joints other than the first branch select the proper ones based on the total capacity index of the indoor units installed after the first branch using the following table 317
- How to select pipe size 317
- How to select the refnet joint 317
- How to select the refnet joint select the refnet joint from the following table when using refnet joints at the first branch counted from the outdoor unit side ex refnet joint a 317
- Piping material select the piping material to be used from the next table according to piping size 317
- Rxyq5my1b rxyq8my1b rxyq10my1b rxyq12my1b rxyq14my1b rxyq16my1b 317
- Selection of pipe size joints and header 317
- The table shows the requirements of japanese high pressure gas control low the thickness and material shall be selected in accordance with local code as of jan 003 317
- Wall thickness of refrigerant pipe 317
- How to select the refnet header 318
- Pipe size for direct connection to indoor unit must be the same as the connection size of indoor unit 318
- Piping between the refnet joints 318
- Piping between the refnet joints and indoor unit 318
- Select the proper pipe size using the following table based on the total capacity index of indoor units connected downstream connection piping size should not exceed the refrigerant piping size selected by the model with combination units 318
- When connecting the indoor unit larger than 250 or more use with khrp26m33t m72t to upper stream side do not connect downstream side select the proper refnet header using the following table based on the total capacity index of indoor units installed after the header 318
- For refnet joints other than the first branch select the proper ones based on the total capacity index of the indoor units installed after the first branch using the following table 319
- How to select pipe size 319
- How to select the refnet joint 319
- How to select the refnet joint select the refnet joint from the following table when using refnet joints at the first branch counted from the outdoor unit side 319
- Main piping between multi connection piping kit and refnet joint select the proper ones based on the following table 319
- Piping material select the piping material to be used from the next table according to piping size 319
- Rxyq18my1b rxyq20my1b rxyq22my1b rxyq24my1b rxyq26my1b rxyq28my1b rxyq30my1b rxyq32my1b rxyq34my1b rxyq36my1b rxyq38my1b rxyq40my1b rxyq42my1b rxyq44my1b rxyq46my1b rxyq48my1b 319
- How to select the refnet header 320
- Piping between the multi connection piping kit 320
- Piping between the refnet joints 320
- Select the proper pipe size using the following table based on the total capacity index of indoor units connected downstream connection piping size should be larger than main piping size connection piping size should not exceed the refrigerant piping size selected by the model with combination units 320
- Select the proper pipe size using the following table based on the total capacity index of outdoor units connected upper stream 320
- Select the proper refnet header using the following table based on the total capacity index of indoor units installed after the header 320
- The table shows the requirements of japanese high pressure gas control low the thickness and material shall be selected in accordance with local code as of jan 003 320
- Wall thickness of refrigerant pipe 320
- When using refnet joints at the first branch counted from the outdoor unit side use khrp26m73h for larger than rxyq24my1b 320
- Outdoor unit multi connection piping kit 321
- Pipe size for direct connection to indoor unit must be the same as the connection size of indoor unit 321
- Pipe size for direct connection to outdoor unit must be the same as the connection size of outdoor unit 321
- Piping between outdoor unit and multi connection piping kit 321
- Piping between refnet joint and indoor unit 321
- Select the piping kit according to the no of outdoor units 321
- Appendix 311 322
- Indoor unit for air suction r1t for liquid pipe r2t for gas pipe r3t 322
- Outdoor unit for outdoor air r1t for coil r2t for suction pipe r4t for receiver gas pipe r5t 322
- Sie39 404 thermistor resistance temperature characteristics 322
- Thermistor resistance temperature characteristics 322
- Appendix 323
- Outdoor unit thermistors for discharge pipe r3t 323
- Thermistor resistance temperature characteristics sie39 404 323
- Pressure sensor 324
- Decision according to continuity check by analog tester before checking disconnect the electric wiring connected to the power transistor and diode module 325
- Electronic circ u it 325
- Inverter p c bo a rd 325
- Inverter pc b o a rd aip 325
- Method of replacing the inverter s power transistors and diode modules 325
- Appendix 315 326
- Decision if other than given above the diode module is defective and must be replaced 326
- Decision if other than given above the power unit is defective and must be replaced 326
- Diode module 326
- Note if using a digital tester and continuity may be reversed 326
- Power transistor igbt on inverter pc board 326
- Sie39 404 method of replacing the inverter s power transistors and diode modules 326
- Part 9 328
- Precautions for new refrigerant r410 328
- Precautions for new refrigerant r410 18 328
- About refrigerant r410a 329
- Characteristics of new refrigerant r410a 1 performance almost the same performance as r22 and r407c 2 pressure working pressure is approx 1 times more than r22 and r407c 3 refrigerant composition few problems in composition control since it is a quasi azeotropic mixture refrigerant 329
- H 1 non azeotropic mixture refrigerant mixture of two or more refrigerants having different boiling points h 2 quasi azeotropic mixture refrigerant mixture of two or more refrigerants having similar boiling points h 3 the design pressure is different at each product please refer to the installation manual for each product reference 1 mpa 10 9716 kgf c 329
- Outline 329
- Precautions for new refrigerant r410 329
- Precautions for new refrigerant r410 319 330
- Sie39 404 precautions for new refrigerant r410 330
- Thermodynamic characteristic of r410a 330
- 2 handing of vessels since r410a is high pressure gas it is contained in high pressure vessels although those vessels are durable and strong careless handling can cause damage that can lead to unexpected accidents do not drop vessels let them fall apply impact or roll them on the ground 331
- 3 storage although r410a is not flammable it must be stored in a well ventilated cool and dark place in the same way as any other high pressure gases it should also be noted that high pressure vessels are equipped with safety devices that releases gas when the ambient temperature reaches more than a certain level fusible plug melts and when the pressure exceeds a certain level spring type safety valve operates 331
- Cylinder specifications 2 the cylinder is painted refrigerant color pink 2 the cylinder valve is equipped with a siphon tube 331
- Handling of cylinders 1 laws and regulations r410a is liquefied gas and the high pressure gas safety law must be observed in handling them before using refer to the high pressure gas safety law the law stipulates standards and regulations that must be followed to prevent accidents with high pressure gases be sure to follow the regulations 331
- Precautions for new refrigerant r410 331
- Precautions for new refrigerant r410 sie39 404 331
- Refrigerant cylinders 331
- As for the charge mouthpiece and packing 1 2unf20 is necessary for mouthpiece size of charge hose 332
- Copper tube material and thickness 332
- O soft annealed h hard drawn 332
- R410a is used under higher working pressure compared to previous refrigerants r22 r407c furthermore the refrigerating machine oil has been changed from suniso oil to ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems therefore gauge manifolds and charge hoses that are used with a previous refrigerant r22 r407c can not be used for products that use new refrigerants be sure to use dedicated tools and devices 332
- Service tools 332
- Tool compatibility 332
- Conventional flaring tools can be used when the work process is changed change of work process previously a pipe extension margin of 0 to 0 mm was provided for flaring for r410a air conditioners perform pipe flaring with a pipe extension margin of 1 to 1 mm for clutch type only conventional tool with pipe extension margin adjustment can be used 333
- Differences 2 change of dimension a 333
- Flaring tool 333
- Specifications 2 dimension a 333
- Unit mm 333
- C a n not b e us ed 336
- Drawings flow charts 342
- B 8400 ostend belgium 344
- Sie39 404 01 2005 prepared in belgium by lannoo 344
- Www daikineurope com 344
- Zandvoordestraat 300 344
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