![Daikin RXYMQ48PVJU [237/264] Field wiring](/img/pdf.png)
Daikin RXYMQ48PVJU [237/264] Field wiring
![Daikin RXYMQ48PVJU [237/264] Field wiring](/views2/1717638/page237/bged.png)
Содержание
- Capacity range 2
- Functional parts layout 9 2
- Heat pump 60hz 2
- Introduction v 2
- List of electrical and functional parts 1 2
- Model names of indoor outdoor units 2 external appearance 2
- Operation mode 1 2 basic control 2 2
- Part 1 general information 2
- Part 2 specifications 2
- Part 3 list of electrical and functional parts 0 2
- Part 4 refrigerant circuit 26 2
- Part 5 function 0 2
- R 410a 2
- R 410a heat pump 60hz 2
- Refrigerant circuit 7 2
- Special control 6 2
- Specifications 2
- Other control 6 3
- Outdoor unit pcb layout 8 3 field setting 9 3
- Outline of control indoor unit 6 3
- Part 6 test operation 54 3
- Part 7 troubleshooting 0 3
- Protection control 2 3
- Symptom based troubleshooting 2 2 troubleshooting by remote controller 5 3
- Test operation 5 3
- Troubleshooting by indication on the remote controller 09 3
- Troubleshooting op centralized remote controller 97 4
- Example of connection 39 5 thermistor resistance temperature characteristics 41 6 pressure sensor 43 5
- Option list 36 5
- Part 8 appendix 22 5
- Part 9 precautions for new refrigerant r 410a 44 5
- Piping diagrams 23 5
- Precautions for new refrigerant r 410a 45 5
- Troubleshooting op unified on off controller 04 5
- Wiring diagrams 27 5
- If refrigerant gas leaks during repair or service ventilate the area immediately refrigerant gas may produce toxic gas if it comes into contact with flames refrigerant gas is heavier than air and replaces oxygen in the event of an accident a massive leak could lead to oxygen depletion especially in basements and an asphyxiation hazard could occur leading to serious injury or death 6
- Prior to disconnecting the suction or discharge pipe from the compressor at the welded section pump down the refrigerant gas completely in a well ventilated place first if there is refrigerant gas or oil remaining inside the compressor the refrigerant gas or oil can discharge when the pipe is being disconnected and it may cause an injury wear a safety helmet gloves and a safety belt when working at an elevated height of more than 6 ft 2 m insufficient safety measures may cause a fall resulting in injury 6
- Safety considerations 6
- Safety considerations for repair 6
- Before cleaning the unit stop the operation of the unit by turning the power off or by pulling the power cable plug out from its receptacle otherwise an electrical shock or injury may result 7
- Do not wipe the controller operation panel with benzene thinner chemical dust cloth etc the panel may get discolored or the coating can peel off if it is extremely dirty soak a cloth in a water diluted neutral detergent squeeze it well and wipe the panel clean then wipe it with another dry cloth 7
- Never attempt to modify the equipment doing so can cause electrical shock excessive heat generation or fire 7
- Safety considerations for users 7
- Preface 8
- Capacity range 10
- Model names of indoor outdoor units 2 external appearance 10
- Part 1 general information 10
- Indoor units 11
- Model names of indoor outdoor units 11
- Outdoor units inverter series 11
- Ceiling mounted cassette type multi flow 12
- Ceiling mounted duct type 12
- Ceiling suspended type 12
- Concealed floor standing type 12
- External appearance 12
- Floor standing type 12
- Indoor units 12
- Outdoor units 12
- Rxymq36pvju rxymq48pvju 12
- Slim ceiling mounted duct type 12
- Wall mounted type 12
- Way ceiling mounted cassette unit 2 2 12
- Capacity range 13
- Indoor units 13
- Outdoor units 13
- Part 2 specifications 14
- Specifications 14
- Outdoor units 15
- Specifications 15
- Ceiling mounted cassette type multi flow 16
- Indoor units 16
- Ceiling mounted cassette type multi flow 17
- Specifications 17
- Specifications sius34 907 17
- Sius34 907 specifications 18
- Specifications 9 18
- Way ceiling mounted cassette unit 2 2 18
- Slim ceiling mounted duct type 19
- Specifications 19
- Specifications sius34 907 19
- Sius34 907 specifications 20
- Slim ceiling mounted duct type 20
- Specifications 11 20
- Ceiling mounted duct type 21
- Specifications 21
- Specifications sius34 907 21
- Ceiling mounted duct type 22
- Sius34 907 specifications 22
- Specifications 13 22
- Ceiling mounted duct type 23
- Specifications 23
- Specifications sius34 907 23
- Ceiling suspended type 24
- Sius34 907 specifications 24
- Specifications 15 24
- Specifications 25
- Specifications sius34 907 25
- Wall mounted type 25
- Sius34 907 specifications 26
- Specifications 17 26
- Wall mounted type 26
- Floor standing type 27
- Specifications 27
- Specifications sius34 907 27
- Concealed floor standing type 28
- Sius34 907 specifications 28
- Specifications 19 28
- List of electrical and functional parts 1 29
- Part 3 list of electrical and functional parts 29
- List of electrical and functional parts 30
- Outdoor unit 30
- Indoor unit 31
- List of electrical and functional parts 31
- List of electrical and functional parts sius34 907 31
- List of electrical and functional parts 23 32
- Sius34 907 list of electrical and functional parts 32
- List of electrical and functional parts 33
- List of electrical and functional parts sius34 907 33
- List of electrical and functional parts 25 34
- Sius34 907 list of electrical and functional parts 34
- Functional parts layout 9 35
- Part 4 refrigerant circuit 35
- Refrigerant circuit 7 35
- Refrigerant circuit 36
- Refrigerant circuit 27 36
- Rxymq36 48p 36
- Sius34 907 refrigerant circuit 36
- Functional parts layout 38
- Rxymq36 48p 38
- Operation mode 1 2 basic control 2 39
- Other control 6 39
- Outline of control indoor unit 6 39
- Part 5 function 39
- Protection control 2 39
- Special control 6 39
- Function 31 40
- Indoor unit stop or thermostat off 40
- Indoor unit thermostat on 40
- Malfunction standby 40
- Note in the event indoor unit stops or the thermostat turns off while in oil return operation or defrosting operation pump down residual operation is performed on completion of the oil return operation or defrosting operation 40
- Operation mode 40
- Pump down residual operation 40
- Sius34 907 operation mode 40
- Basic control 41
- Heating operation is not functional at an outdoor air temperature of 75 fdb or more 41
- Normal operation 41
- Compressor pi control 42
- Carries out the electronic expansion valve y1e pi control to maintain the evaporator outlet superheated degree sh at constant during heating operation to make maximum use of the outdoor unit heat exchanger evaporator 43
- Electronic expansion valve pi control 43
- Main electronic expansion valve ev1 control 43
- Makes pi control of the electronic expansion valve y3e to keep the superheated degree 43
- Of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger 43
- Subcooling electronic expansion valve ev3 control 43
- The optimum initial value of the evaporator outlet superheated degree is 37 f but varies depending on the discharge pipe superheated degree of inverter compressor 43
- Cooling operation fan control 44
- Fan steps 44
- 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 the outdoor unit fan when the outdoor temperature 68 f the compressor will run in step 7 or higher when the outdoor temperature 64 f it will run in step 5 or higher when the outdoor temperature 54 f it will run in step 1 or higher 44
- Special control 45
- Startup control 45
- Startup control in cooling operation 45
- Startup control in heating operation 45
- This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor thus reducing startup loads the inverter is turned on to charge the capacitor in addition to avoid stresses to the compressor due to oil return or else after the startup the following control is made and the position of the four way valve is also determined to position the four way valve the master and slave units simultaneously start up 45
- In order to prevent the compressor from running out of oil the oil return operation is conducted to recover oil flown out from the compressor to the system side 46
- Oil return operation 46
- Oil return operation in cooling operation 46
- Start conditions referring to the set conditions for the following items start the oil return operation in cooling cumulative oil feed rate timer setting make this setting to start the oil return operation when the initial cumulative operating time reaches two hours after power supply is turned on and then every eight hours the cumulative oil feed rate is computed from tc te and compressor loads 46
- Conditions to start the heating oil returning operation is started referring following conditions integrated amount of displaced oil timer after the power is turned on integrated operating time is 2 hours and subsequently every 8 hours in addition integrated amount of displaced oil is derived from tc te and the compressor load 47
- From the preparing oil returning operation to the oil returning operation and from the oil returning operation to the operation after oil returning the compressor stops for 1 minute to reduce noise on changing of the four way valve 47
- Oil return operation in heating operation 47
- Defrosting operation 48
- From the preparing operation to the defrost operation and from the defrost operation to the operation after defrost the compressor stops for 1 minute to reduce noise on changing of the four way valve 48
- The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating and the heating capacity is recovered conditions to start the defrost operation is started referring following conditions outdoor heat exchanger heat transfer co efficiency temperature of heat exchange tb timer 2 hours at the minimum in addition outdoor heat exchange co efficiency is derived from tc te and the compressor load 48
- Pump down residual operation 49
- Pump down residual operation in cooling operation 49
- Pump down residual operation in heating operation 49
- When activating compressor if the liquid refrigerant remains in the heatexchanger the liquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity therefore the pump down residual operation is performed to collect the refrigerant in the heatexchanger when the compressor is down 49
- Operation of the actuator when the system is down is cleared up 50
- Restart is stood by force to prevent frequent power on off and to equalize pressure in the refrigerant system 50
- Restart standby 50
- Stopping operation 50
- When system is in stop mode 50
- Function 51
- High pressure protection control 51
- In cooling operation 51
- In heating operation 51
- Protection control 51
- Protection control sius34 907 51
- 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 51
- Function 43 52
- In cooling operation 52
- In heating operation 52
- Low pressure limited 52
- Low pressure protection control 52
- Sius34 907 protection control 52
- This low pressure protection control is used to protect compressors against the transient decrease of low pressure 52
- Discharge pipe protection control 53
- Inv compressor 53
- This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature 53
- Fin temp standby 54
- Inv upper limit frequency max hz 54
- 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 54
- Inverter fin temperature control 54
- Inverter overcurrent protection control 54
- Inverter protection control 54
- Limited 54
- Not limited 54
- Tfin 167 f 54
- Tfin 167 f continues for 3 min 54
- Tfin 172 f 54
- Tfin 181 f 54
- When occurring 4 times within 60 min the malfunction code l4 is output 54
- Demand operation 55
- Drain pump control 55
- Heating operation prohibition 55
- Other control 55
- Outline of control indoor unit 55
- When the float switch is tripped while the cooling thermostat is on 55
- When the float switch is tripped during heating operation 56
- When the float switch is tripped while the cooling thermostat is off 56
- Is displayed on the remote controller 57
- When the float switch is tripped and 57
- Louver control for preventing ceiling dirt 58
- Cooling 59
- Thermostat sensor in remote controller 59
- Heating 60
- Freeze prevention 61
- Freeze prevention by off cycle indoor unit 61
- Swing flaps work as following 62
- View of operations of swing flaps 62
- Outdoor unit pcb layout 8 3 field setting 9 63
- Part 6 test operation 63
- Test operation 5 63
- Check work prior to turn power supply on 64
- Procedure and outline 64
- Test operation 64
- Turn power on 64
- Check for wrong wiring 65
- Check on operation 65
- Check operation 65
- Check stop valve for not open 65
- During check operation mount front panel to avoid the misjudging check operation is mandatory for normal unit operation when the check operation is not executed alarm code u3 will be displayed 65
- Led lamp on outdoor unit pcb h2p flickers test operation 65
- Malfunction code in case of an alarm code displayed on remote controller 65
- On completion of test operation led on outdoor unit pcb displays the following h3p on normal completion h2p and h3p on abnormal completion check the indoor unit remote controller for abnormal display and correct it 65
- Pipe length automatic judgement the following indications are conducted while in test operation 65
- Press and hold the test operation button bs4 on outdoor unit pcb for 5 seconds 65
- Remote controller indicates under centralized control on upper right indicates test operation on lower left 65
- The test operation is started automatically the following judgements are conducted within 15 minutes about 30 minutes at the maximum 65
- Confirmation on normal operation 66
- Operation when power is turned on 66
- When an indoor unit or outdoor unit has been added or indoor or outdoor unit pcb has been changed 66
- When turning on power first time 66
- When turning on power the second time and subsequent 66
- Caution cover electric parts with an insulating sheet during inspection to prevent electric shock 67
- Outdoor unit pcb 67
- Outdoor unit pcb layout 67
- Field setting 68
- Field setting from remote controller 68
- Yes no 69
- Wireless remote controller indoor unit 70
- Simplified remote controller 71
- Factory setting 72
- 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 do not make settings other than those described above nothing is displayed for functions the indoor unit is not equipped with 4 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 5 if the setting mode to equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit 72
- Setting contents and code no vrv indoor unit 72
- Sius34 907 field setting 72
- Test operation 63 72
- 1 static pressure selection 73
- Applicable range of field setting 73
- Field setting sius34 907 73
- Test operation 73
- 1 filter sign setting 74
- 2 ultra long life filter sign setting 74
- 3 selection of thermistor 74
- 4 filter cleaning displayed or not displayed 74
- 5 optional output switching 74
- Detailed explanation of setting modes 74
- If switching the filter sign on time set as given in the table below 74
- Life filter is installed the filter sign timer setting must be changed 74
- Select the thermistor to control room temperature 74
- The factory setting for the second code no is 01 and room temperature is controlled by the indoor unit suction air thermistor and remote controller thermistor when the second code no is set to 02 room temperature is controlled by the suction air thermistor when the second code no is set to 03 room temperature is controlled by the remote controller thermistor 74
- Using this setting operation output signal and abnormal output signal can be provided output signal is output between terminals k1 and k2 of customized wiring adaptor an optional accessory 74
- When a ultra lon 74
- Whether or not to display filter cleaning after operation of certain duration can be selected 74
- 6 external on off input 75
- 7 thermostat switching 75
- 8 airflow setting when heating thermostat is off 75
- 9 setting of operation mode to auto 75
- Differential value during thermostat on off control can be changed 75
- The automatic operation mode setting is made by the use of the operation mode selector button 75
- This input is used for on off operation and protection device input from the outside the input is performed from the t1 t2 terminal of the operation terminal block x1a in the electric component box 75
- This setting is used to set airflow when heating thermostat is off when thermostat off airflow volume up mode is used careful consideration is required before deciding installation location 75
- This setting makes it possible to change differential values for mode selection while in automatic operation mode 75
- 10 auto restart after power failure reset 76
- 11 airflow when cooling thermostat is off 76
- 12 setting of normal airflow 76
- Caution 1 the air conditioner starts operation suddenly after power failure reset or the main power supply turned on again consequently the user might be surprised with question for the reason why 2 in the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates 76
- For the above reasons when the unit is set enabling to utilize auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation 76
- For the air conditioners with no setting for the function same as factory setting the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off however for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure 76
- In the case of fxfq12 30 76
- In the case of fxfq36 76
- 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 76
- This is used to set airflow to ll airflow when cooling thermostat is off 76
- 13 airflow direction setting 77
- 14 setting of airflow direction adjustment range 77
- 15 setting of the static pressure selection for fxdq model 77
- 16 humidification when heating thermostat is off 77
- 17 setting of direct duct connection 77
- 18 interlocked operation between humidifier and drain pump 77
- 19 individual setting of ventilation 77
- Make the following airflow direction setting according to the respective purpose 77
- Set the airflow 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 setting to 01 77
- Setting to humidification setting turns on the humidifier if suction temperature is 68 f or above and turns off the humidifier if suction temperature is 64 f or below when the heating thermostat is off 77
- Some indoor unit models are not equipped with draft prevention upward function 77
- This is set to perform individual operation of heat reclaim ventilation using the remote controller central unit when heat reclaim ventilation is built in switch only when heat reclaim ventilation is built in 77
- This is used to interlock the humidifier with the drain pump when water is drained out of the unit this setting is unnecessary 77
- This is used when fresh air intake kit equipped with fan is connected the indoor fan carries out residual operation for one minute after the thermostat is stopped for the purpose of preventing dust on the air filter from falling off 77
- Brc1e type 78
- Centralized control group no setting 78
- In order to conduct the centralized remote control using the centralized remote controller and the unified on off controller group no settings should be made by group using the operating remote controller make group no settings for centralized remote control using the operating remote controller 78
- Notes for wireless remote controller see the following for setting group no of hrv and wiring adaptor for other air conditioners refer to the instruction manual attached 78
- Notice enter the group no and installation place of the indoor unit into the attached installation table be sure to keep the installation table with the operation manual for maintenance 78
- Brc7c type brc7e type brc4c type 79
- 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 80
- Contents of control modes 80
- Group no setting example 80
- Setting of operation control mode from remote controller local setting 80
- Sius34 907 field setting 80
- Test operation 71 80
- The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller furthermore operations such as remote controller on off can be limited in accordance with the combination conditions refer to information in the next page centralized remote controller is normally available for operations except when centralized monitor is connected 80
- Twenty modes consisting of combinations of the following five operation modes with temperature and operation mode setting by remote controller can be set and displayed by operation modes 0 through 19 on off control impossible by remote controller used when you want to turn on off by centralized remote controller only cannot be turned on off by remote controller off control only possible by remote controller used when you want to turn on by centralized remote controller only and off by remote controller only centralized used when you want to turn on by centralized remote controller only and turn on off freely by remote controller during set time individual used when you want to turn on off by both centralized remote controller and remote controller timer operation possible by remote controller used when you want to turn on off by remote controller during set time and you do not want to start operation by centralized remote controller when time of system start is programmed 80
- 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 81
- How to select operation mode 81
- 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 81
- Field setting from outdoor unit 82
- Setting by dip switches 82
- The following field settings are made by dip switches on pcb 82
- Caution 83
- Dip switch setting after changing the main pcb a1p to spare parts pcb when you change the main pcb a1p to spare parts pcb please carry out the following setting 83
- Field setting sius34 907 83
- Test operation 83
- Factory setting 84
- H h k h h h h 84
- H1p h2p h3p h4p h5p h6p h7p 84
- Led indication 84
- Mode changing procedure 84
- Setting by push button switches the following settings are made by push button switches on pcb 84
- Sius34 907 field setting 84
- Test operation 75 84
- There are the following three setting modes setting mode 1 h1p off initial status when normal also indicates during abnormal setting mode 2 h1p on used to modify the operating status and to set program addresses etc usually used in servicing the system monitor mode h1p blinks used to check the program made in setting mode 2 84
- Using the mode button the modes can be changed as follows 84
- A setting mode 1 85
- Field setting sius34 907 85
- H h k h h h h 85
- Procedure for changing cool heat selection setting 85
- Test operation 85
- This mode is used to set and check the following items 1 set items in order to make cool heat selection in a batch of outdoor unit group change the setting cool heat selection ind used to select cool or heat by individual outdoor unit factory setting cool heat selection master used to select cool or heat by outdoor unit group with the master unit cool heat selection slave used to select cool or heat by outdoor unit group with the slave unit 2 check items the following items can be checked 1 current operating conditions normal abnormal in check operation 2 setting conditions of cool heat selection individual batch master batch slave 3 low noise operating conditions in normal operation in low noise operation 4 demand operating conditions in normal operation in demand operation 85
- B setting mode 2 86
- Bs2 button 86
- The numbers in the no column represent the number of times to press the set 86
- C monitor mode 89
- L h lh llh 90
- L hh h lh l 90
- L hh h llh 90
- Cool heat mode switching 91
- For the details refer to the installation manual supplied together with the indoor unit 91
- In the case of wired remote controllers 91
- In the case of wireless remote controllers 91
- It does not matter whether or not there is outdoor outdoor unit wiring set outdoor unit pcb ds1 1 to in factory setting set cool heat switching to ind individual for setting mode 1 factory setting 91
- Set cool heat separately for each outdoor unit system by indoor unit remote controller 91
- There are the following 4 cool heat switching modes set cool heat separately for each outdoor unit system by indoor unit remote controller set cool heat separately for each outdoor unit system by cool heat 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 91
- Set cool heat separately for each outdoor unit system by cool heat switching remote controller 92
- Setting of low noise operation 93
- Setting of low noise operation and demand operation 93
- Detailed setting procedure of low noise operation and demand control 94
- Setting of demand operation 94
- Setting of refrigerant additional charging operation 96
- Setting of refrigerant recovery mode 97
- Check operation 98
- Check operation function 98
- H h k h h h h 98
- H l h h h h k 98
- H l h h h k h 98
- H l h h h k k 98
- H l h h k h h 98
- H l h h k h k 98
- H l h h k k h 98
- H l h h k k k 98
- H l h k h h k 98
- H l h k h k h 98
- In order to perform vacuuming operation at site fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves 98
- Operating procedure in setting mode 2 with units in stop mode set b refrigerant recovery vacuuming mode to on the respective expansion valve of indoor and outdoor units are fully opened test operation and under centralized control are displayed on the remote controller and the indoor outdoor unit operation is prohibited 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 98
- Setting of vacuuming mode 98
- 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 or discharge pipe thermistor and judgement of piping length refrigerant overcharging and learning for the minimum opening degree of electronic expansion valve 98
- Part 7 troubleshooting 99
- Symptom based troubleshooting 2 2 troubleshooting by remote controller 5 99
- Troubleshooting by indication on the remote controller 09 99
- Troubleshooting op centralized remote controller 97 100
- Troubleshooting op unified on off controller 04 100
- Symptom based troubleshooting 101
- On power up the message checking the connection please stand by is displayed on the remote controller screen then that message is no longer displayed and the basic screen displays to access a mode from the basic screen refer to the figure below when any of the operation buttons is pressed the backlight will come on and remains lit for about 30 seconds be sure to press a button while the backlight is on this does not apply to the on off button 104
- Sius34 907 troubleshooting by remote controller 104
- Troubleshooting 95 104
- Troubleshooting by remote controller 104
- 1 checking a error or warning 105
- Self diagnosis by wired remote controller 105
- The following will be displayed on the screen when a error or a warning occurs during operation check the error code and take the corrective action specified for the particular model 105
- In the case of brc7c type brc7e type brc4c type 106
- Self diagnosis by wireless remote controller 106
- The right side digit of the code changes as shown below when the up and down buttons are pressed 107
- How to enter the maintenance mode 108
- Maintenance mode operation method 108
- Remote controller maintenance mode 108
- 1 checking a error or warning 111
- 2 taking corrective action 111
- Press the menu ok button to check the error code 111
- Remote controller self diagnosis function 111
- Take the corrective action specific to the model 111
- The following will be displayed on the screen when a error or a warning occurs during operation check the error code and take the corrective action specified for the particular model 111
- The system operates for malfunction codes indicated in black squares however be sure to check and repair 113
- Detail description on next page 114
- Malfunction code indication by outdoor unit pcb 114
- Push the mode bs1 button and returns to setting mode 1 114
- Push the return bs3 button and switches to the initial status of monitor mode 114
- Push the return bs3 button once to display first digit of malfunction code 114
- Push the set bs2 button and set the led display to a setting item 114
- Push the set bs2 button once to display malfunction location 114
- Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 114
- Push the set bs2 button once to display second digit of malfunction code 114
- Sius34 907 troubleshooting by remote controller 114
- To enter the monitor mode push the mode bs1 button when in setting mode 1 114
- Troubleshooting 105 114
- Troubleshooting 115
- Troubleshooting by remote controller sius34 907 115
- Detail description on next page 116
- Push the mode bs1 button and returns to setting mode 1 116
- Push the return bs3 button and switches to the initial status of monitor mode 116
- Push the return bs3 button once to display first digit of malfunction code 116
- Push the set bs2 button and set the led display to a setting item 116
- Push the set bs2 button once to display malfunction location 116
- Push the set bs2 button once to display master or slave 1 or slave 2 and malfunction location 116
- Push the set bs2 button once to display second digit of malfunction code 116
- Sius34 907 troubleshooting by remote controller 116
- To enter the monitor mode push the mode bs1 button when in setting mode 1 116
- Troubleshooting 107 116
- Troubleshooting 117
- Troubleshooting by remote controller sius34 907 117
- Applicable models 118
- Error of external protection device 118
- Malfunction decision conditions 118
- Method of malfunction detection 118
- Remote controller display 118
- Supposed causes 118
- Troubleshooting 118
- Troubleshooting by indication on the remote controller 118
- Pcb defect 119
- Applicable models 120
- Malfunction decision conditions 120
- Malfunction of drain level control system s1l 120
- Method of malfunction detection 120
- Remote controller display 120
- Supposed causes 120
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 121
- Check the drain piping for clogging or upward slope etc 121
- Connect either a short circuit connector or float switch and turn on again 121
- Connect the drain pump and turn on again 121
- Defect of indoor unit pcb 121
- Loose connection of connector 121
- Modify the float switch s connection and turn on again 121
- Provide 208 230v power supply 121
- Replace the drain pump or check for dirt etc 121
- Replace the float switch 121
- Replace the indoor unit pcb 121
- Troubleshooting 121
- Troubleshooting by indication on the remote controller sius34 907 121
- Applicable models 122
- Fan motor m1f lock overload 122
- Malfunction decision conditions 122
- Method of malfunction detection 122
- Remote controller display 122
- Supposed causes 122
- 1 if any junction connector is provided between the connector x20a or x4a on the indoor unit pcb and the fan motor also check whether or not the junction connector is properly connected 2 all resistance measuring points and judgement criteria 123
- Properly connect the connector 123
- Remove the foreign matters 123
- Replace the fan motor 123
- Replace the indoor unit pcb 123
- Troubleshooting 123
- Troubleshooting by indication on the remote controller sius34 907 123
- Malfunction of indoor unit fan motor 124
- Applicable models 125
- Malfunction decision conditions 125
- Method of malfunction detection 125
- Remote controller display 125
- Supposed causes 125
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 126
- Connect correctly 126
- Remove the foreign matter 126
- Replace the fan motor 126
- Replace the fan pcb a2p 126
- Sius34 907 troubleshooting by indication on the remote controller 126
- Troubleshooting 126
- Troubleshooting 117 126
- 1 measurement of power wire connector remove the x1a connector from the fan pcb a2p and measure the resistance between the u and v v and w and w and u phases of the motor connector with five conductors and check that each phase is balanced within a permissible dispersion range of 20 2 measurement of signal wire connector remove the x2a connector and measure the resistance between gnd and 127
- Replace the fan motor 127
- Replace the fan pcb a2p 127
- Terminals of the motor connector with five conductors 127
- Troubleshooting 127
- Troubleshooting by indication on the remote controller sius34 907 127
- Malfunction of swing flap motor m1s 128
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 129
- Connect the connector to x9a and turn on again 129
- Provide 208 230v power supply 129
- Replace the indoor unit pcb 129
- Replace the limit switch connecting cable 129
- Replace the power supply connecting cable 129
- Replace the swing motor 129
- Take the cam mechanism apart reassemble and turn on again 129
- Troubleshooting 129
- Troubleshooting by indication on the remote controller sius34 907 129
- Applicable models 130
- Malfunction decision conditions 130
- Malfunction of moving part of electronic expansion valve y1e 130
- Method of malfunction detection 130
- Remote controller display 130
- Replace the connecting cable 130
- Supposed causes 130
- Troubleshooting 130
- 1 coil check method for the moving part of the electronic expansion valve discount the electronic expansion valve from the pcb and check the continuity between the connector pins 131
- Continuity no continuity 131
- Normal 131
- Drain level above limit 132
- Applicable models 133
- Install a capacity setting adaptor 133
- Malfunction decision conditions 133
- Malfunction of capacity determination device 133
- Method of malfunction detection 133
- Remote controller display 133
- Replace the indoor unit pcb 133
- Supposed causes 133
- Troubleshooting 133
- Applicable models 134
- Malfunction decision conditions 134
- Malfunction of thermistor r2t for heat exchanger 134
- Method of malfunction detection 134
- Normal the malfunction is caused by faulty contact 134
- Remote controller display 134
- Replace the indoor unit pcb 134
- Replace the thermistor r2t 134
- Supposed causes 134
- Troubleshooting 134
- Applicable models 135
- Malfunction decision conditions 135
- Malfunction of thermistor r3t for gas pipe 135
- Method of malfunction detection 135
- Normal the malfunction is caused by faulty contact 135
- Remote controller display 135
- Replace the indoor unit pcb 135
- Replace the thermistor r3t 135
- Supposed causes 135
- Troubleshooting 135
- Applicable models 136
- Malfunction decision conditions 136
- Malfunction of thermistor r1t for suction air 136
- Method of malfunction detection 136
- Normal the malfunction is caused by faulty contact 136
- Remote controller display 136
- Replace the indoor unit pcb 136
- Replace the thermistor r1t 136
- Supposed causes 136
- Troubleshooting 136
- Malfunction of thermostat sensor in remote controller 137
- Pcb defect 138
- Actuation of high pressure switch 139
- Applicable models 139
- Malfunction decision conditions 139
- Method of malfunction detection 139
- Remote controller display 139
- Supposed causes 139
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 140
- Rectify defective points if any 140
- Replace the high pressure sensor 140
- Replace the high pressure switch 140
- Replace the main pcb a1p 140
- Sius34 907 troubleshooting by indication on the remote controller 140
- Troubleshooting 140
- Troubleshooting 131 140
- 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge for the pressure sensor voltage measure voltage at the connector and then convert it to pressure according to information on p 43 2 take the measurement of voltage of the pressure sensor 141
- Troubleshooting 141
- Troubleshooting by indication on the remote controller sius34 907 141
- Actuation of low pressure sensor 142
- 1 make a comparison between the voltage of the pressure sensor and that read by the pressure gauge as to the voltage of the pressure sensor take measurement of voltage at the connector and then convert it to pressure according to information on p 43 2 take measurement of voltage of the pressure sensor 143
- Open the stop valve 143
- Replace the low pressure sensor 143
- Replace the main pcb a1p 143
- Troubleshooting 143
- Troubleshooting by indication on the remote controller sius34 907 143
- Applicable models 144
- Inverter compressor motor lock 144
- Malfunction decision conditions 144
- Method of malfunction detection 144
- Remote controller display 144
- Supposed causes 144
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 145
- Check if the wiring has any error in mistake for inverter compressor 145
- Conclude the work there is a possibility of defect of pressure equalizing check the refrigerant circuit 145
- Defect of pressure equalizing check the refrigerant circuit 145
- Ensure correct connection 145
- Local factor open the stop valve 145
- Replace the compressor 145
- Replace the connecting wires and ensure right connection of the connector 145
- Troubleshooting 145
- Troubleshooting by indication on the remote controller sius34 907 145
- 1 pressure difference between high pressure and low pressure before starting 2 the quality of power transistors diode modules can be judged by executing p 13 146
- Check 4 146
- Replace the inverter compressor 146
- Replace the inverter pcb 146
- Sius34 907 troubleshooting by indication on the remote controller 146
- Troubleshooting 137 146
- Applicable models 147
- Malfunction decision conditions 147
- Malfunction of outdoor unit fan motor 147
- Method of malfunction detection 147
- Remote controller display 147
- Supposed causes 147
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 148
- Correct the connection of the relay connectors 148
- Insert the connector 148
- Remove the foreign substances 148
- Sius34 907 troubleshooting by indication on the remote controller 148
- Troubleshooting 148
- Troubleshooting 139 148
- Replace the corresponding fan motor 149
- Replace the pcb a1p 149
- Troubleshooting 149
- Troubleshooting by indication on the remote controller sius34 907 149
- Malfunction of moving part of electronic expansion valve y1e y3e 150
- Ensure correct connection 151
- External factor other than malfunction noise for example 151
- Make measurement of resistance between the connector pins and then make sure the resistance falls in the range of 40 to 50 ω 151
- Replace the connecting cable 151
- Replace the outdoor unit pcb a1p 151
- Troubleshooting 151
- Abnormal discharge pipe temperature r2t 152
- 1 compare the resistance value of discharge pipe thermistor and the value based on the surface thermometer refer to thermistor resistance temperature characteristics table on p 41 153
- Replace the discharge pipe thermistor r2t 153
- Replace the main pcb a1p 153
- Troubleshooting 153
- Troubleshooting by indication on the remote controller sius34 907 153
- Applicable models 154
- Install the thermistor r1t r4t r7t correctly 154
- Malfunction decision conditions 154
- Method of malfunction detection 154
- Rectify the overcharge of refrigerant 154
- Refrigerant overcharged 154
- Remote controller display 154
- Replace the thermistor r1t r4t r7t 154
- Supposed causes 154
- Troubleshooting 154
- Applicable models 155
- Connect the connector and turn on again 155
- Malfunction decision conditions 155
- Malfunction of thermistor r1t for outdoor air 155
- Method of malfunction detection 155
- Remote controller display 155
- Replace the outdoor unit pcb a1p 155
- Replace the thermistor r1t 155
- Supposed causes 155
- Troubleshooting 155
- Applicable models 156
- Connect the connector and turn on again 156
- Malfunction decision conditions 156
- Malfunction of discharge pipe thermistor r2t 156
- Method of malfunction detection 156
- Remote controller display 156
- Replace the outdoor unit pcb a1p 156
- Replace the thermistor r2t 156
- Supposed causes 156
- Troubleshooting 156
- Applicable models 157
- Connect the connector and turn on again 157
- Malfunction decision conditions 157
- Malfunction of thermistor r3t r5t for suction pipe 1 2 157
- Method of malfunction detection 157
- Remote controller display 157
- Replace the outdoor unit pcb a1p 157
- Replace the thermistor r3t or r5t 157
- Supposed causes 157
- Troubleshooting 157
- Applicable models 158
- Connect the connector and turn on again 158
- Malfunction decision conditions 158
- Malfunction of thermistor r4t for outdoor unit heat exchanger 158
- Method of malfunction detection 158
- Remote controller display 158
- Replace the outdoor unit pcb a1p 158
- Replace the thermistor r4t 158
- Supposed causes 158
- Troubleshooting 158
- Applicable models 159
- Connect the connector and operate unit again 159
- Malfunction decision conditions 159
- Malfunction of thermistor r7t for outdoor unit liquid pipe 159
- Method of malfunction detection 159
- Remote controller display 159
- Replace the outdoor unit pcb a1p 159
- Replace the thermistor r7t 159
- Supposed causes 159
- Troubleshooting 159
- Applicable models 160
- Connect the connector and operate unit again 160
- Malfunction decision conditions 160
- Malfunction of subcooling heat exchanger gas pipe thermistor r6t 160
- Method of malfunction detection 160
- Remote controller display 160
- Replace the outdoor unit pcb a1p 160
- Replace the thermistor r6t 160
- Supposed causes 160
- Troubleshooting 160
- Malfunction of high pressure sensor 161
- 1 voltage measurement point 162
- 2 refer to pressure sensor pressure voltage characteristics table on p 43 162
- Replace the high pressure sensor 162
- Replace the main pcb 162
- Sius34 907 troubleshooting by indication on the remote controller 162
- Troubleshooting 162
- Troubleshooting 153 162
- Malfunction of low pressure sensor 163
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 164
- Replace the low pressure sensor 164
- Replace the main pcb 164
- Sius34 907 troubleshooting by indication on the remote controller 164
- Troubleshooting 164
- Troubleshooting 155 164
- 1 voltage measurement point 165
- 2 refer to pressure sensor pressure voltage characteristics table on p 43 165
- Applicable models 166
- Malfunction decision conditions 166
- Malfunction of pcb 166
- Method of malfunction detection 166
- Remote controller display 166
- Supposed causes 166
- Check 4 167
- It is probable that the malfunction results from external causes other than failures e g external noises or thunder 167
- Refer to the information on p 13 167
- Replace the lead wires 167
- Replace the main pcb a1p 167
- Replace the main pcb a1p at the same time 167
- Troubleshooting 167
- Troubleshooting by indication on the remote controller sius34 907 167
- Malfunction of inverter radiation fin temperature rise 168
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 169
- Continue operation it is probable that the radiation fin temperature became high due to some field factors in this connection check the following points stained radiation fin airflow obstructed with dirt or foreign matters damage to fan impellers too high outdoor temperature 169
- Faulty radiation from the power unit blocked air suction port stained radiation fin high outdoor temperature 169
- Replace the main pcb a1p 169
- Replace the thermistor fin th 169
- Troubleshooting 169
- Troubleshooting by indication on the remote controller sius34 907 169
- Main pcb 170
- Refer to thermistor resistance temperature characteristics table on p 41 170
- Inverter compressor abnormal 171
- Check 4 172
- Compressor inspection 172
- Continue operation momentary power failure is possible 172
- Correct the wiring and connection 172
- Open the stop valve 172
- Refer to the information on p 13 172
- Replace the compressor lead wires 172
- Replace the inverter compressor 172
- Replace the main pcb a1p 172
- Troubleshooting 172
- Inverter current abnormal 173
- Check 4 174
- Continue operation 174
- Correct the wiring and connection 174
- Defective pressure equalizing in the refrigerant circuit 174
- Inspection of the compressor 174
- Open the stop valve 174
- Refer to the information on p 13 174
- Replace the compressor lead wires 174
- Replace the inverter compressor 174
- Replace the main pcb a1p 174
- Troubleshooting 174
- Inverter compressor start up error 175
- Cancel the inactive state of refrigerant 176
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 176
- Charge a right amount of refrigerant 176
- Continued to a on the following page 176
- Correct the wiring then supply power to restart 176
- Fix the compressor lead wire 176
- Open the stop valve 176
- Sius34 907 troubleshooting by indication on the remote controller 176
- Troubleshooting 176
- Troubleshooting 167 176
- Cancel the inactive state of refrigerant 177
- Check 4 177
- Recheck the compressor refrigerant circuit 177
- Refer to the information on p 13 177
- Replace the inverter compressor 177
- Replace the main pcb a1p 177
- Troubleshooting 177
- Troubleshooting by indication on the remote controller sius34 907 177
- Applicable models 178
- High voltage of capacitor in main inverter circuit 178
- Malfunction decision conditions 178
- Method of malfunction detection 178
- Remote controller display 178
- Supposed causes 178
- 1 measure voltage at the x1m power supply terminal block 179
- Fix power supply voltage imbalance 179
- Open phase normalize field cause 179
- Part or wiring defect after turning the power supply off check and repair the main circuit wiring or parts 1 loose or disconnected wiring between power supply and inverter 2 loose or disconnected noise filter 179
- Replace the inverter pcb 179
- Troubleshooting 179
- Troubleshooting by indication on the remote controller sius34 907 179
- Applicable models 180
- Malfunction of inverter radiating fin temperature rise sensor 180
- Method of malfunction detection 180
- Remote controller display 180
- Supposed causes 180
- Troubleshooting 180
- Main pcb 181
- Refer to thermistor resistance temperature characteristics table on p 41 181
- Applicable models 182
- Low pressure drop due to refrigerant shortage or electronic expansion valve failure 182
- Malfunction decision conditions 182
- Remote controller display 182
- Supposed causes 182
- 1 check the low pressure value by using pressure gauge in operation 2 compare the actual measurement value by pressure sensor with the value by the pressure gauge to gain actual measurement value by pressure sensor measure the voltage at the connector between 2 3 and then convert the value into pressure referring to p 42 183
- 1 refer to the information on p 11 2 refer to the information on p 16 3 compare the thermistor resistance value with the value on the surface thermometer 183
- Check 2 check 7 183
- Remove the factor of decreasing low pressure by referring to 1 183
- Remove the factor of superheating by referring to 2 183
- Replace the low pressure sensor 183
- Replace the main pcb 183
- Replace the main pcb a1p 183
- Replace the thermistor r4t or r5t 183
- Troubleshooting 183
- Applicable models 184
- Malfunction decision conditions 184
- Method of malfunction detection 184
- Power supply insufficient or instantaneous failure 184
- Remote controller display 184
- Supposed causes 184
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 185
- Onsite causes correct the unbalanced loads to eliminate the unbalanced state unbalanced voltage will cause extremely unbalanced current thus impairing the service life of or resulting in the malfunction of the equipment 185
- Onsite causes make proper wire connections without open phase erroneous connections or erroneous order of phases 185
- Replace the compressor 185
- Replace the fan motor replace the fan driver 185
- Replace the main pcb a1p observe the conditions of the pcb in the case of a serious failure a compressor failure may cause the failure of the pcb even if the pcb is replaced it may cause failure again to avoid that recheck the compressor for ground and for any broken wires note even after the completion of pcb replacement check the compressor 185
- Troubleshooting 185
- Troubleshooting by indication on the remote controller sius34 907 185
- Check operation is not executed 187
- Applicable models 188
- Malfunction decision conditions 188
- Malfunction of transmission between indoor units and outdoor units 188
- Method of malfunction detection 188
- Remote controller display 188
- Supposed causes 188
- Correct the connecting wires 189
- Correct the voltage 200v 189
- Go on to p 82 led lamp display 189
- Press the rewiring button on the main pcb of the master outdoor unit keep pressing for 5 seconds or more operation does not start for a maximum 12 minutes 189
- Press the rewiring button on the main pcb of the outdoor unit keep pressing for 5 seconds or more 189
- Replace the fuse 189
- Replace the indoor unit pcb 189
- Replace the outdoor unit pcb 189
- Troubleshooting 189
- Correct the connecting wires 190
- Fix diii net expander adaptor 190
- Replace the main pcb of outdoor unit 190
- Sius34 907 troubleshooting by indication on the remote controller 190
- Troubleshooting 181 190
- Are normal check the indoor units in the other circuits to diagnose failure according to the corresponding malfunction codes 191
- Continue operation 191
- Make a diagnosis again based on the indication in 2 minutes or more 191
- The indoor units pcb indicating 191
- Troubleshooting 191
- Troubleshooting by indication on the remote controller sius34 907 191
- Applicable models 192
- Malfunction decision conditions 192
- Malfunction of transmission between remote controller and indoor unit 192
- Method of malfunction detection 192
- Remote controller display 192
- Supposed causes 192
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 193
- Normal 193
- Replace the indoor unit pcb 193
- Set one remote controller to sub turn the power supply off once and then back on 193
- There is a possibility of malfunction caused by noise check the surrounding area and turn on again 193
- Troubleshooting 193
- Troubleshooting by indication on the remote controller sius34 907 193
- Malfunction of transmission between main and sub remote controllers 194
- Malfunction of transmission between indoor units and outdoor units in the same system 195
- Applicable models 196
- Improper combination of indoor and outdoor units etc 196
- Malfunction decision conditions 196
- Method of malfunction detection 196
- Remote controller display 196
- Supposed causes 196
- Troubleshooting 196
- Match the refrigerant types of the outdoor unit and the indoor unit 197
- Replace the main pcb of the outdoor unit 197
- The number of indoor units exceeds the standard check the connection to correct 197
- Troubleshooting 197
- Troubleshooting by indication on the remote controller sius34 907 197
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 198
- Check the model of the outdoor unit 198
- Correct the setting to reset the power 198
- Replace it with the correct spare pcb 198
- Replace the main pcb of the outdoor unit 198
- Replace the spare pcb 198
- Sius34 907 troubleshooting by indication on the remote controller 198
- Troubleshooting 189 198
- Address duplication of centralized remote controller 199
- Applicable models 200
- Malfunction decision conditions 200
- Malfunction of transmission between centralized remote controller and indoor unit 200
- Method of malfunction detection 200
- Remote controller display 200
- Supposed causes 200
- Check outdoor units to which the refrigerant system is connected 201
- Check whether or not there are no problems with the transmission wiring length types of cables and wires number of units connected and others if no problems replace the indoor unit pcb 201
- Continued to a on the following page 201
- Make correct setting of the central control group no 201
- Make sure there are no hazardous situations and then turn on the power supply 201
- Reset the power supplies of every centralized remote controller for the intelligent touch controller register the air conditioner again while in diii net test run menu 201
- Troubleshooting 201
- Troubleshooting by indication on the remote controller sius34 907 201
- Centralized remote controller normal 202
- Check 8 202
- Correct the connection of the connector 202
- Correct the wiring 202
- It is supposed that the malfunction results from external factors e g noises from other equipment 202
- Refer to the information on p 17 202
- Replace the centralized remote controller 202
- Sius34 907 troubleshooting by indication on the remote controller 202
- Troubleshooting 193 202
- After fixing incorrect wiring push and hold the reset button on the master outdoor unit pcb for 5 seconds the unit will not run for up to 12 minutes 203
- Applicable models 203
- Malfunction decision conditions 203
- Method of malfunction detection 203
- Open stop valve 203
- Remote controller display 203
- Replace the indoor unit pcb 203
- Supposed causes 203
- System is not set yet 203
- Troubleshooting 203
- Wiring check operation may not have been carried out successfully 203
- Malfunction of system refrigerant system address undefined 204
- After fixing incorrect wiring push and hold the reset button on the outdoor unit pcb for 5 seconds the unit will not run for up to 12 minutes 205
- Normal 205
- Replace the indoor unit pcb 205
- Replace the outdoor unit pcb a1p 205
- Troubleshooting 205
- Troubleshooting by indication on the remote controller sius34 907 205
- Pcb defect 206
- Troubleshooting op centralized remote controller 206
- Malfunction of transmission between optional controllers for centralized control 207
- 1 display screen control using the intelligent touch controller when the screen displays nothing by touching the screen adjust the contrast volume refer to the information on p 17 208
- Check 8 208
- Correct the wiring 208
- Replace the centralized remote controller 208
- Replace the intelligent touch controller 208
- Reset the power supplies of every centralized remote controller 208
- Set the reset switch located inside of equipment ss1 has been set to the normal side 208
- The centralized remote controller malfunctions conduct run stop operations on every centralized remote controller and then replace the centralized remote controller that cannot control the indoor unit 208
- Troubleshooting 208
- Turn on the power supply of the centralized remote controller 208
- Improper combination of optional controllers for centralized control 209
- Troubleshooting 210
- Address duplication improper setting 211
- Centralized remote controller normal 212
- Check 10 212
- Correct the setting of the combination of master and slave units and then reset the power supplies of every centralized remote controller 212
- It is supposed that the malfunction results from external factors e g noises from other equipment 212
- Refer to the information on p 19 212
- Replace the centralized remote controller 212
- Reset the power supplies of every centralized remote controller 212
- Troubleshooting 212
- Applicable models 213
- Malfunction decision conditions 213
- Method of malfunction detection 213
- Operation lamp blinks 213
- Remote controller display 213
- Supposed causes 213
- Troubleshooting op unified on off controller 213
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 214
- Connect the connector correctly 214
- Correct the wiring 214
- Diagnose the cause with the air conditioner s failure diagnosis manual 214
- Replace the centralized controller pcb 214
- Reset power supply for all optional controllers for centralized control simultaneously 214
- Set the group no correctly 214
- Sius34 907 troubleshooting op unified on off controller 214
- Troubleshooting 214
- Troubleshooting 205 214
- Turn the power supply of the indoor unit on 214
- Applicable models 215
- Display under centralized control blinks repeats single blink 215
- Malfunction decision conditions 215
- Method of malfunction detection 215
- Remote controller display 215
- Supposed causes 215
- Caution be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged 216
- Correct the setting of the unified on off controller s switch for setting each address and reset the power supply of the unified on off controller 216
- Correct the wiring 216
- Refer to failure diagnosis for centralized remote controller or schedule timer 216
- Reset power supply simultaneously for all optional controllers for centralized control 216
- Set reset switch to normal 216
- Sius34 907 troubleshooting op unified on off controller 216
- Troubleshooting 216
- Troubleshooting 207 216
- Turn on power supply for all optional controllers for centralized control 216
- Applicable models 218
- Central control address group no is not set for indoor unit improper control range setting switch improper wiring of transmission wiring 218
- Correct the wiring 218
- Detect the malfunction according to diii net transmission data 218
- Display under centralized control blinks repeats double blink 218
- Malfunction decision conditions 218
- Method of malfunction detection 218
- Remote controller display 218
- Replace the unified on off controller 218
- Set by remote controller the central control address for all indoor units connected to the central control line 218
- Set the control range setting switch correctly and simultaneously reset the power supply for all optional controllers for centralized control 218
- Supposed causes 218
- Troubleshooting 218
- Under centralized control repeats double blink 218
- Unified on off controller 218
- When no central control addresses are set to indoor units when no indoor units are connected within the control range 218
- Check 1 219
- Check for causes of rise in high pressure 219
- Referring to the fault tree analysis fta shown below probe the faulty points 219
- Sius34 907 219
- Troubleshooting 219
- Check 2 220
- Check for causes of drop in low pressure 220
- Referring to the fault tree analysis fta shown below probe the faulty points 220
- Sius34 907 220
- Troubleshooting 211 220
- 1 turn the power supply off 2 with the fan motor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table 221
- Check 3 221
- Check for fan motor connector 221
- Check 4 222
- Point of measurement and judgement criteria 222
- Power transistor check 222
- Preparation 222
- Pcb and circuit diagram 223
- Sius34 907 223
- Troubleshooting 223
- U v w n3 223
- 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 224
- 1 turn off the power supply signal wire 2 measure the resistance between vcc and each phase of u v w and gnd and each phase at the motor side connectors five core wire to check that the values are balanced within the range of 20 while connector or relay connector is disconnected furthermore to use a multi meter for measurement connect the probe of negative pole to vcc and that of positive pole to gnd 224
- Check 5 224
- Check 6 224
- Check on connector of fan motor power supply wire 224
- Sius34 907 224
- Troubleshooting 215 224
- Bend collapse 225
- Check 7 225
- Check the factors of overheat operation 225
- Defective control pcb 225
- Defective low pressure sensor 225
- Defective solenoid valve coil defective solenoid valve body 225
- Defective valve body 225
- Defective valve coil 225
- Faulty hot gas bypass control 225
- Faulty of 4 way switch valve operation 225
- Identify the defective points referring to the fault tree analysis fta as follows 225
- Including moisture choke 225
- Refrigerant gas shortage 225
- Sius34 907 225
- Stop valve is closed 225
- Superheat due to shaft damage superheat due to defective compressor 225
- Troubleshooting 225
- Way switch valve is in the middle position leak from hot gas bypass valve 225
- Broken wire check of the connecting wires 226
- Check 8 226
- Procedure for checking outdoor outdoor unit transmission wiring for broken wires on the system shown below turn off the power supply to all equipment short circuit between the outdoor outdoor unit terminal parts f1 and f2 in the outdoor unit a that is farthest from the centralized remote controller and then conduct continuity checks between the transmission wiring terminal blocks f1 and f2 of the centralized remote controller using a multi meter if there is continuity between the said terminal blocks the outdoor outdoor unit transmission wiring has no broken wires in it if there is no continuity the transmission wiring may have broken wires with the outdoor outdoor unit terminal parts of the outdoor unit a short circuited conduct continuity checks between the transmission wiring terminal blocks f1 and f2 of the unified on off controller if there is no continuity as well conduct continuity checks between the outdoor outdoor unit terminal parts of the outdoor unit e between the outdoor o 226
- Sius34 907 226
- Troubleshooting 217 226
- Check 9 227
- Master unit central connector setting table 227
- Check 10 228
- Dcs601c51 228
- Master slave unit setting table 228
- Check 11 229
- Method of replacing the inverter s power transistors modules 229
- Power module checking when using the digital type of multiple tester make measurement in diode check mode 230
- Sius34 907 230
- The following abnormalities are also doubted besides the pcb abnormality h faulty compressor ground fault ground leakage h faulty fan motor ground leakage 230
- There needs to be none of each value variation 230
- Troubleshooting 221 230
- Appendix 231
- Example of connection 39 5 thermistor resistance temperature characteristics 41 6 pressure sensor 43 231
- Option list 36 231
- Part 8 231
- Part 8 appendix 231
- Piping diagrams 23 231
- Wiring diagrams 27 231
- Outdoor unit 232
- Piping diagrams 232
- Rxymq36 48pvju 232
- Fxfq fxhq 233
- Indoor unit 233
- Refrigerant pipe connection port diameters 234
- Fxmq fxlq fxnq 235
- Refrigerant pipe connection port diameters 235
- Heat pump 236
- Outdoor unit 236
- Rxymq36 48pvju 236
- Wiring diagrams 236
- Field wiring 237
- Rxymq36 48pvju 237
- Fxfq12m 18m 24m 30m 36mvju 238
- Indoor unit 238
- Fxzq07m 09m 12m 18mvju 239
- Fxdq07m 09m 12m 18m 24mvju 240
- Fxmq07p 09p 12p 18p 24p 30p 36p 48pvju 241
- Fxhq12m 24m 36mvju 242
- Fxaq07m 09m 12m 18m 24mvju 243
- Fxlq12m 18m 24mvju fxnq12m 18m 24mvju 244
- Building management system 245
- Is a registered trade mark of echelon corporation 245
- Is a registered trademark of american society of heating refrigerating and air conditioning engineers ashrae 245
- Lonwork 245
- Notes 1 installation box no is necessary for each adaptor marked 2 electrical box 5 1 6 1 is required for controller no 5 6 245
- Option list 245
- Option list of controllers 245
- Optional accessories of operation control system 245
- Appendix 237 246
- Option list of outdoor unit 246
- Rxyqm36 48mvju 246
- Sius34 907 option list 246
- Appendix 248
- Branch with refnet header 248
- Branch with refnet joint 248
- Branch with refnet joint and refnet header 248
- Connection of 8 indoor units heat pump system 248
- Example of connection 248
- Sius34 907 248
- Appendix 241 250
- Indoor unit for air suction r1t for liquid pipe r2t for gas pipe r3t 250
- Outdoor unit for fin thermistor r1t 250
- Outdoor unit for outdoor air r1t for suction pipe 1 r3t for heat exchanger r4t for suction pipe 2 r5t for subcooling heat exchanger outlet r6t for liquid pipe r7t 250
- Sius34 907 thermistor resistance temperature characteristics 250
- Thermistor resistance temperature characteristics 250
- Appendix 251
- Outdoor unit thermistors for discharge pipe r2t 251
- Thermistor resistance temperature characteristics sius34 907 251
- Appendix 243 252
- Pressure sensor 252
- Sius34 907 pressure sensor 252
- Part 9 253
- Part 9 precautions for new refrigerant r 410a 253
- Precautions for new refrigerant r 410a 253
- Precautions for new refrigerant r 410a 45 253
- 1 non azeotropic mixture refrigerant mixture of two or more refrigerants having different boiling points 2 quasi azeotropic mixture refrigerant mixture of two or more refrigerants having similar boiling points 3 the design pressure is different at each product please refer to the installation manual for each product reference 1 mpa 10 9716 kgf c 254
- About refrigerant r 410a 254
- Characteristics of new refrigerant r 410a 1 performance almost the same performance as r 22 and r 407c 2 pressure working pressure is approx 1 times more than r 22 and r 407c 3 refrigerant composition few problems in composition control since it is a quasi azeotropic mixture refrigerant 254
- Mpa 145 psi 254
- Outline 254
- Precautions for new refrigerant r 410a 254
- Precautions for new refrigerant r 410a 255
- Precautions for new refrigerant r 410a sius34 907 255
- Thermodynamic characteristic of r 410a 255
- Refrigerant cylinders 256
- As for the charge mouthpiece and packing 1 2unf20 is necessary for mouthpiece size of charge hose 257
- Copper tube material and thickness 257
- O soft annealed h hard drawn 257
- R 410a is used under higher working pressure compared to previous refrigerants r 22 r 407c furthermore the refrigerating machine oil has been changed from suniso oil to ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems therefore gauge manifolds and charge hoses that are used with a previous refrigerant r 22 r 407c can not be used for products that use new refrigerants be sure to use dedicated tools and devices 257
- Service tools 257
- Tool compatibility 257
- 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 2in was provided for flaring for r 410a air conditioners perform pipe flaring with a pipe extension margin of 0 4 to 0 6in for clutch type only conventional tool with pipe extension margin adjustment can be used 258
- Differences change of dimension a 258
- Flaring tool 258
- Specifications dimension a 258
- Unit in 258
- Can not be used 261
- Ask a qualified installer or contractor to install this product do not try to install the product yourself improper installation can result in water or refrigerant leakage electrical shock fire or explosion 264
- Daikin industries ltd s products are manufactured for export to numerous countries throughout the world daikin industries ltd does not have control over which products are exported to and used in a particular country prior to purchase please therefore confirm with your local authorized importer distributor and or retailer whether this product conforms tot he applicable standards and is suitable for use in the region where the product will be used this statement does not purport to exclude restrict or modify the application of any local legislation 264
- Dddddfdf 264
- If you have any inquiries please contact your local importer distributor or retailer 264
- Info daikinac com www daikinac com 264
- Read the user s manual carefully before using this product the user s manual provides important safety instructions and warnings be sure to follow these instructions and warnings 264
- Sius34 907 printed in u s a 2 2011 b ak 264
- Use only those parts and accessories supplied or specified by daikin ask a qualified installer or contractor to install those parts and accessories use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion 264
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