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Daikin VAM150GJVE [54/112] Data transmission error lcd remote controller
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Si71-502 Troubleshooting
Troubleshooting 45
1.10 Data Transmission Error (LCD Remote Controller)
Remote Controller
LCD Display
Error Code
U5
Inspection Blinking Unit No. OFF
LED Indication Remote Controller
5
Main Unit
5
Error Detection
Method
Microcomputer checks if data is transmitted properly between main unit and remote controller.
Error Generating
Conditions
When data transmission is not performed correctly for a certain time period.
Possible Causes
Erroneous connection
Faulty remote controller setting
Faulty remote controller
Troubleshooting
Is
master-slave
selection switch
properly set?
YES
YES
Correct wiring.
Replace remote controller.
Set one master-slave selection
switch to Master, and set the
other to Slave. Then turn off
power, and restart operation.
Replace either master or slave
remote controller.
Is
remote
controller
other than
dedicated LCD
remote controller
connected to
remote
controller
cable?
NO
(HF009)
NO
Is
master-slave
remote control
used?
NO
YES
Содержание
- Heat reclaim ventilation 1
- Si71 502 1
- Heat reclaim ventilation 2
- Heat reclaim ventilation heat reclaim ventilation heat reclaim ventilation heat reclaim ventilation 2
- Circuit operations 2 3
- Control functions 2 3
- General constructions 3
- Introduction v 3
- Maintenance 6 3
- Operation 0 3
- Part 1 general constructions 3
- Part 2 product specification 3
- Part 3 operation 3
- Part 4 maintenance 5 3
- Part 5 control functions 1 3
- Part 6 circuit operations 1 3
- Part 7 troubleshooting 5 3
- Product specification 3
- Table of contents 3
- Troubleshooting 6 3
- After sales service 3 4
- Maintenance for a qualified service person only 5 4
- Operation procedure 8 4
- Part 8 supplementary explanation 5 4
- Part 9 operation manual 5 4
- Safety cautions 8 2 what to do before operation 1 4
- Supplementary explanation 6 4
- Troubleshooting 0 4
- Introduction 6
- Safety cautions 6
- Cautions in operation and maintenance 7
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 9
- Introduction si71 502 9
- Using icons 9
- Using icons list 9
- Part 1 general constructions 10
- Explanation 11
- General constructions 11
- General constructions si71 502 11
- Vam150gjve vam250gjve vam350gjve vam500gjve vam650gjve vam800gjve vam1000gjve 11
- General constructions 3 12
- Si71 502 general constructions 12
- Vam1500gjve vam2000gjve 12
- Part 2 product specification 14
- 50 60hz 15
- Product specification 15
- Product specification si71 502 15
- Specification 15
- Test conditions are as follows 15
- 50 60hz 16
- Product specification 7 16
- Si71 502 product specification 16
- Test conditions are as follows 16
- 50 60hz 17
- Product specification 17
- Product specification si71 502 17
- Test conditions are as follows 17
- Operation 0 18
- Part 3 operation 18
- Part 3 part 3 part 3 part 3 operation operation operation operation 18
- Explanation for systems 19
- Operation 19
- Operation for each system 19
- Operation si71 502 19
- This product is operated differently depending on the system configuration for the operation of the remote controller for indoor unit and centralized controller refer to the instruction manual provided with each unit 19
- Operation hrv units with the remote control exclusively for air conditioning operation brc301b61 20
- Operating the hrv unit using the remote controller of the vrv system air conditioner 22
- After selecting the zone where the only the hrv unit operation is desired press the operation mode selector and select ventilation the hrv unit can then be operated independently from the air conditioner 23
- Each time you press the operation selection button the operation mode display will change as shown in the figure below 23
- Example 1 in case of the remote controller brc1c61 and as equivalent display changes as below 23
- Independent operation of the hrv unit using the centralized controller dcs302c a 61 23
- Note current ventilation mode can be visible and selected on the remote controller 23
- Operating the hrv unit using the remote controller of the vrv system air conditioner 23
- Operation 23
- Operation si71 502 23
- The hrv unit cannot be operated independently when the air conditioner is connected to the hrv unit via a duct when using the hrv unit set the air conditioner to fan mode on weak fan strength 23
- When the filter indication appears on the display clean the filter of the hrv unit refer to the section 3 23
- Part 4 maintenance 24
- Maintenance 25
- Maintenance for the air filter 25
- Maintenance for the heat exchange element 28
- Part 5 control functions 30
- Control functions 31
- Control functions si71 502 31
- List of control functions 31
- Note note 1 requires optional humidifier and optional printed circuit board krp50 2 wiring adapter for remote contact 31
- Control functions 23 32
- Controls ventilation fan motors supply and exhaust air fans and damper motor 1 normal operation operation chart 32
- Direct duct connection with air conditioner operation chart 32
- Explanation of individual functions 32
- Note direct duct connection setting can be made in vrv system or using field setting mode of hrv lcd remote controller 32
- Si71 502 control functions 32
- Ventilation operation control 32
- Control functions 33
- Control functions si71 502 33
- Note operation standby indication is displayed only on lcd remote controller of heat reclaim ventilation unit 33
- Pre cool pre heat 33
- Pre cool pre heat operations require the following conditions 1 system pre heat operation is possible only in air conditioner linked system 1 group 2 group link check the system first 2 heat reclaim ventilation setting set pre heat on off to on pre cool pre heat on off setting can be made in air conditioner or using field setting mode of lcd remote controller of heat reclaim ventilation unit pre cool time can be set between 30 and 60 min and pre heat time can be set between 30 and 150 min 3 others a heat reclaim ventilation unit must be in non operating condition for two consecutive hours or more prior to pre cool pre heat operation b temperature control mode of the air conditioner must be set to cool heat or dry 33
- Air conditioner link operation 34
- Allows independent operation of heat reclaim ventilation unit from vrv system remote controller during interim periods not possible when direct duct connection is used 34
- Allows simultaneous on off from remote controller for air conditioner 34
- Cold area mode 34
- Control functions 25 34
- Link system enables simultaneous on off operation of heat reclaim ventilation unit and air conditioner vrv system skyair 1 1 group link control 34
- Note cold area mode can set using remote controller for air conditioner or field setting mode of lcd remoter controller of heat reclaim ventilation unit protection control operation control in cold climates to operate the unit at low outdoor temperatures control the air supply fans and the exhaust fans as shown below for equipment protection 34
- Operation chart in heating operation only 34
- Si71 502 control functions 34
- Stops or lowers ventilation airflow during defrosting operation and compressor non operating condition when equipment in heating mode thus reducing heating load and cold air draft 34
- Allows independent operation of heat reclaim ventilation unit from vrv system remote controller during interim periods direct duct connection is not allowed in this system 35
- Control functions 35
- Control functions si71 502 35
- Field setting service mode 35
- Field setting used for initial setting of heat reclaim ventilation unit 2 service mode used for confirmation of unit nos in the group and reallocation of unit nos 35
- Heat reclaim ventilation unit can be operated when one or more air conditioners are operating 35
- Link control of 2 or more groups zone link 35
- List of field setting and service mode list of settings 35
- Note with super wiring units of different outdoor systems can be linked in operation 35
- Control functions 27 36
- Si71 502 control functions 36
- External damper operation field supply 37
- Control functions 29 38
- Layout of switches on printed circuit board 38
- Printed circuit board 38
- Si71 502 control functions 38
- Control functions 39
- Control functions si71 502 39
- Function of main connection terminal 39
- Part 6 circuit operations 40
- Circuit configuration 41
- Circuit operations 41
- Circuit operations si71 502 41
- Circuit functions 42
- Circuit operations 33 42
- Si71 502 circuit operations 42
- Part 7 part 7 part 7 part 7 troubleshooting troubleshooting troubleshooting troubleshooting 44
- Part 7 troubleshooting 44
- Troubleshooting 6 44
- Error code indication 45
- In case of the malfunction with the shaded error code the unit still operates however be sure to have it inspected and repaired and as soon as possible 45
- List of malfunction codes displayed by lcd remote controller 45
- Main unit pcb 45
- Troubleshooting 45
- Troubleshooting si71 502 45
- When an abnormality is generated take necessary measures by referring to displayed error code after the cause of abnormality is removed operate equipment and check proper functioning 45
- Overall alarm 46
- Overall malfunction 47
- Indoor air thermistor error 48
- Broken wire 49
- Error code 49
- Error detection method temperature detected by outside air temperature sensor is used to detect errors 49
- Error generating conditions when value detected by outside air temperature sensor is 40ºc or below open circuit or 70ºc or higher short circuit 49
- Faulty contact in connector 49
- Faulty control pcb 49
- Faulty sensor 49
- If measured value deviates significantly from above values thermistor is faulty 49
- Inspection off unit no blinking 49
- Led indication remote controller 49
- Main unit 49
- Note note 1 refer to the thermistor temperature resistance conversion table when measuring resistance 49
- Outdoor air thermistor error 49
- Possible causes 49
- Remote controller lcd display 49
- Thermistor temperature resistance conversion table 49
- Troubleshooting 49
- Troubleshooting si71 502 49
- Use tester to check resistance 49
- Damper system error alarm 50
- Damper system error alarm 51
- Dedicated lcd remote controller 52
- Dedicated remote controller 52
- Error detection method when 52
- Error generating conditions 52
- Main unit pcb 52
- Possible causes master slave setting of remote controller remote controller pcb assembly error main unit pcb assembly error 52
- Remains on remote controller display 52
- Si71 502 troubleshooting 52
- Troubleshooting 52
- Troubleshooting 43 52
- Data transmission error between lcd remote controller and main unit 53
- Data transmission error lcd remote controller 54
- Erroneous connection 54
- Error code 54
- Error detection method microcomputer checks if data is transmitted properly between main unit and remote controller 54
- Error generating conditions when data transmission is not performed correctly for a certain time period 54
- Faulty remote controller 54
- Faulty remote controller setting 54
- Inspection blinking unit no off 54
- Led indication remote controller 54
- Main unit 54
- Possible causes 54
- Remote controller lcd display 54
- Si71 502 troubleshooting 54
- Troubleshooting 54
- Troubleshooting 45 54
- Data transmission error between lcd master remote controller and slave remote controller 55
- Error code 55
- Error detection method microcomputer checks if data is transmitted properly between master slave remote controller 55
- Error generating conditions when data transmission is not performed correctly for a certain time period 55
- Faulty remote controller 55
- Faulty remote controller setting 55
- Inspection blinking unit no off 55
- Led indication remote controller 55
- Main unit 55
- Possible causes 55
- Remote controller lcd display 55
- Troubleshooting 55
- Troubleshooting si71 502 55
- Field setting error 56
- Overlapping central control address 57
- Check microcomputer operation monitor 58
- Error detection method 58
- Error generating conditions when main unit pcb assembly does not operate when communication circuit errors 58
- Main unit pcb 58
- Main unit pcb assembly 58
- Possible causes fuse excess current power transformer noise main unit pcb 58
- Si71 502 troubleshooting 58
- Troubleshooting 58
- Troubleshooting 49 58
- Check 1 2 3 refer to page 51 59
- Dedicated lcd remote controller 59
- Error detection method check to see if remote controller displays indication 59
- Error generating conditions 59
- Possible causes 59
- Troubleshooting 59
- Troubleshooting si71 502 59
- When no indication is displayed on remote controller 59
- Check 1 dedicated lcd remote controller option 60
- Check 2 dedicated lcd remote controller option 60
- Check 3 dedicated lcd remote controller option 60
- How to check 60
- Lcd remote controller 60
- Main unit pcb 60
- Remote controller for heat reclaim ventilation 60
- Si71 502 troubleshooting 60
- Troubleshooting 51 60
- Broken wire 61
- Error detection method 61
- Error generating conditions 61
- Faulty contact in connector 61
- Faulty control pcb 61
- Faulty thermistor 61
- If measured value deviates significantly from above values thermistor is faulty use tester to check resistance 61
- Note refer to the thermistor temperature resistance conversion table when measuring resistance 61
- Possible causes 61
- Remove thermistor and check resistance with tester 61
- Thermistor 61
- Thermistor temperature resistance conversion table 61
- Troubleshooting 61
- Troubleshooting si71 502 61
- Error detection method check resistance and voltage with tester and insulation resistance with megger 62
- Error generating conditions 62
- Insulation resistance between primary side and secondary side of transformer 100 m ω or higher 62
- Insulation resistance between primary side of transformer and case 100 m ω or higher 62
- Insulation resistance between secondary side of transformer and case 100 m ω or higher 62
- Possible causes 62
- Power transformer 62
- Resistance of primary side of transformer approx 140 ω 62
- Resistance of secondary side of transformer approx 1 ω 62
- Si71 502 troubleshooting 62
- Troubleshooting 62
- Troubleshooting 53 62
- Voltage at secondary side of transformer when rated voltage is applied to primary side approx 26 vac 62
- Check resistance and voltage damper motor 63
- Damper motor 63
- Error detection method check damper motor and limit switch when damper motor does not operate 63
- Error generating conditions 63
- Possible causes 63
- Troubleshooting 63
- Troubleshooting si71 502 63
- Part 8 supplementary explanation 64
- Field setting 65
- Field setting service mode operation 65
- Supplementary explanation 65
- Centralized control group no setting mode no 00 setting of individual no mode no 30 66
- Si71 502 supplementary explanation 66
- Supplementary explanation 57 66
- Service mode operation 67
- Supplementary explanation 67
- Supplementary explanation si71 502 67
- Turn on the forced fan mode no 3 67
- Si71 502 supplementary explanation 68
- Supplementary explanation 59 68
- Unit no reallocation mode no 5 68
- Field setting 69
- List of field setting mode nos 69
- Supplementary explanation 69
- Supplementary explanation si71 502 69
- The following shows the procedure for field setting using remote controller of new heat reclaim ventilation unit 69
- Lcd and operation panel reference information 70
- Inspection indication flashes 71
- Inspection inspection operation is shown below 71
- Supplementary explanation 71
- Supplementary explanation si71 502 71
- Ventilation volume fresh up 71
- Ventilation volume fresh up setting changes as follows 71
- Field setting 72
- Part 9 operation manual 74
- Operation manual 75
- Total heat exchanger hrv heat reclaim ventilation 75
- Safety cautions 77
- Models vam150gjve vam250gjve vam350gjve vam500gjve vam650gjve vam800gjve vam1000gjve 80
- Names of parts 80
- What to do before operation 80
- Models vam1500gjve vam2000gjve 81
- Remote controller and changeover switch name and function of each switch and display 82
- Explanation for systems 85
- For non independent systems starting stopping operation and timer operation may not be possible use the air conditioner remote control or the centralized controller in such cases press the on off button operation lamp lights up and the system will start operation press ventilation mode button if you wish to change the mode the display rotates through the following selections every time the button is pressed 87
- Independent combined operation 87
- Operation manual 87
- Operation procedure 87
- Operation procedure si71 502 87
- Low high 88
- Each time you press the operation selection button the operation mode display will change as shown in the figure below 89
- Example 1 in case of the remote controller brc1c61 and as equivalent display changes as below 89
- Note current ventilation mode can be visible and selected on the remote controller 89
- Operation manual 89
- Operation procedure si71 502 89
- The hrv unit cannot be operated independently when the air conditioner is connected to the hrv unit via a duct when using the hrv unit set the air conditioner to fan mode on weak fan strength 89
- Example 2 in case of the remote controller brc1a61 62 display changes as below 90
- Note current ventilation mode doesn t be displayed when the display shows time to clean air filter ask a qualified service person to clean the filters refer to the chapter maintenance 90
- Operation manual 81 90
- Si71 502 operation procedure 90
- Programming start and stop of the system with timer 91
- Nighttime free cooling operation 93
- Off off off 93
- Off on on on 93
- Operating state temperature c 93
- Time following morning 22 00 24 00 93
- How to clean the air filter 94
- Maintenance for a qualified service person only 94
- Optimum operation 96
- How to clean the heat exchange element 97
- Inspection of the fan moter 98
- If one of the following malfunctions occurs take the measures shown below and contact your daikin dealer 99
- The following situations are not malfunctions 99
- Troubleshooting 99
- If the display inspection unit no and the operation lamp flash and the malfunction code appears 100
- If the system does not properly operate except for the above mentioned case and none of the above mentioned malfunctions is evident investigate the system according to the following procedures 100
- In case of the malfunction with the code in white letters on the black background in the unit still operates however be sure to have it inspected and repaired and as soon as possible if other than the above error codes are displayed there is a possibility that the problem in question has occurred with a combined air conditioner or outdoor unit see the operation manuals included with the air conditioners or outdoor units for details 100
- List of malfunction codes of remote controller of the hrv system 100
- Measure notify and inform the model name and what the malfunction code indicates to your daikin dealer there are other malfunctions measure stop the unit 100
- Operation manual 91 100
- Si71 502 troubleshooting 100
- The unit does not operate at all check if there is a power failure after power has been restored start operation again check if the fuse has blown or breaker has worked change the fuse or set the breaker 2 amount of discharged air is small and the discharging sound is high check if the air filter and heat exchange element are clogged clean tha air filter and heat exchange element 3 amount of discharged air is large and so is the sound check if the air filter and heat exchange element are not installed install the air filter and heat exchange element 100
- If the system does not properly operate except for the above mentioned case and none of the above mentioned malfunctions is evident contact your dealer and request for investigation the system according to the following procedures by a qualified service person 101
- The following malfunctions must be cheched by a qualified service person 101
- After sales service 102
- Part 10 appendix 104
- Appendix 105
- Wiring diagram 105
- Index index index index 108
- Drawings flow charts 110
- Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 110
- Heat reclaim ventilation 112
- Si71 502 112
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