![Daikin RXYTQ10U7YF [133/152] Maintenance and service](/img/pdf.png)
Daikin RXYTQ10U7YF [133/152] Maintenance and service
![Daikin RXYTQ10U7YF [133/152] Maintenance and service](/views2/1791822/page133/bg85.png)
23 | Maintenance and service
Installer and user reference guide
133
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1A – 2020.10
23.2.2 To recover refrigerant
This should be done with a refrigerant recovery unit. Follow the same procedure as
for vacuuming method.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump down the system, and there
is a leak in the refrigerant circuit:
▪ Do NOT use the unit's automatic pump down function, with which you can collect
all refrigerant from the system into the outdoor unit. Possible consequence: Self-
combustion and explosion of the compressor because of air going into the
operating compressor.
▪ Use a separate recovery system so that the unit's compressor does NOT have to
operate.
NOTICE
Make sure to NOT recover any oil while recovering refrigerant. Example: By using an
oil separator.
Содержание
- Installer and user reference guide 1
- Vrv iv heat pump for high ambient temperatures 1
- About the documentation 6 2
- About the system 22 2
- Before operation 24 2
- Energy saving and optimum operation 31 2
- For the user 17 2
- General safety precautions 8 2
- Installer and user reference guide 2
- Maintenance and service 33 2
- Operation 25 2
- Specific installer safety instructions 14 2
- Table of contents 2
- Troubleshooting 37 2
- User interface 23 2
- User safety instructions 18 2
- About the box 48 3
- About the units and options 52 3
- Disposal 45 3
- For the installer 47 3
- Piping installation 66 3
- Relocation 44 3
- Table of contents 3
- Technical data 46 3
- Unit installation 57 3
- Commissioning 125 4
- Configuration 107 4
- Electrical installation 97 4
- Hand over to the user 130 4
- Maintenance and service 131 4
- Table of contents 4
- Disposal 140 5
- Glossary 150 5
- Table of contents 5
- Technical data 141 5
- Troubleshooting 134 5
- About the documentation 6
- About this document 6
- In this chapter 6
- Meaning of warnings and symbols 6
- About the documentation 7
- For the installer 8
- General 8
- General safety precautions 8
- In this chapter 8
- General safety precautions 9
- Installation site 9
- Refrigerant in case of r410a or r32 9
- Charge the liquid refrigerant as follows 10
- Danger risk of explosion 10
- Ensure pressure resistance and prevent foreign materials from entering into the system 10
- General safety precautions 10
- In case recharge is required see the nameplate of the unit it states the type of 10
- Lengths some systems require additional charging of refrigerant 10
- Notice 10
- Only use tools exclusively for the refrigerant type used in the system this to 10
- Refrigerant and necessary amount 10
- The unit is factory charged with refrigerant and depending on pipe sizes and pipe 10
- Warning 10
- Electrical 11
- General safety precautions 11
- Caution 12
- General safety precautions 12
- Install power cables at least 1 m away from televisions or radios to prevent interference depending on the radio waves a distance of 1 m may not be sufficient 12
- Notice 12
- Warning 12
- General safety precautions 13
- Notice 13
- Warning 13
- Always observe the following safety instructions and regulations 14
- Caution 14
- Danger risk of burning scalding 14
- Danger risk of electrocution 14
- Specific installer safety instructions 14
- Warning 14
- Caution 15
- Specific installer safety instructions 15
- Warning 15
- Caution 16
- Specific installer safety instructions 16
- For the user 17
- General 18
- In this chapter 18
- User safety instructions 18
- Caution do not operate the system when using a room fumigation type insecticide chemicals could collect in the unit and endanger the health of people who are hypersensitive to chemicals 19
- Caution it is unhealthy to expose your body to the air flow for a long time 19
- Caution never touch the internal parts of the controller do not remove the front panel some parts inside are 19
- Dangerous to touch and appliance problems may happen for checking and adjusting the internal parts contact your dealer 19
- Instructions for safe operation 19
- User safety instructions 19
- User safety instructions 20
- User safety instructions 21
- About the system 22
- In this chapter 22
- System layout 22
- User interface 23
- Before operation 24
- About operating the system 25
- In this chapter 25
- Operating the system 25
- Operation 25
- Operation range 25
- About cooling heating fan only and automatic operation 26
- About the heating operation 26
- Operation 26
- To operate the system without cool heat changeover remote control switch 26
- Operation 27
- To operate the system with cool heat changeover remote control switch 27
- About the dry program 28
- Operation 28
- To use the dry program with cool heat changeover remote control switch 28
- To use the dry program without cool heat changeover remote control switch 28
- Using the dry program 28
- About the air flow flap 29
- Adjusting the air flow direction 29
- Operation 29
- About control systems 30
- About setting the master user interface 30
- Operation 30
- Setting the master user interface 30
- To designate the master user interface vrv dx and hydrobox 30
- Available main operation methods 31
- Energy saving and optimum operation 31
- In this chapter 31
- Available comfort settings 32
- Energy saving and optimum operation 32
- In this chapter 33
- Maintenance after a long stop period 33
- Maintenance and service 33
- About the refrigerant 34
- After sales service and warranty 34
- Maintenance and service 34
- Maintenance before a long stop period 34
- Warranty period 34
- Maintenance and service 35
- Recommended maintenance and inspection 35
- Recommended maintenance and inspection cycles 35
- Maintenance and service 36
- Shortened maintenance and replacement cycles 36
- Troubleshooting 37
- Check for open doors or windows close doors and 38
- Check if air inlet or outlet of outdoor or indoor 38
- Check if direct sunlight enters the room use 38
- Check if the air filter is not clogged refer to 38
- Check if the air flow angle is proper 38
- Check if there are too many occupants in the room 38
- Check the fan speed setting on your user 38
- Check the temperature setting 38
- Curtains or blinds 38
- During cooling operation check if the heat source of the room is excessive 38
- Error codes overview 38
- For your reference a list with malfunction codes is provided you can depending on the level of the malfunction code reset the code by pushing the on off button if not ask your installer for advice 38
- If after checking all above items it is impossible to fix the problem yourself contact your installer and state the symptoms the complete model name of the unit with manufacturing number if possible and the installation date possibly listed on the warranty card 38
- In case a malfunction code appears on the indoor unit user interface display contact your installer and inform the malfunction code the unit type and serial number you can find this information on the nameplate of the unit 38
- In this chapter 38
- Interface 38
- Maintenance in the indoor unit manual 38
- Malfunction measure 38
- The system operates but cooling or heating is insufficient 38
- Troubleshooting 38
- Unit is not blocked by obstacles remove any obstacles and make sure the air can flow freely 38
- Windows to prevent wind from coming in 38
- Troubleshooting 39
- Troubleshooting 40
- Symptom cool heat cannot be changed over 41
- Symptom fan operation is possible but cooling and heating do not work 41
- Symptom the fan direction does not correspond to the setting 41
- Symptom the fan speed does not correspond to the setting 41
- Symptom the system does not operate 41
- Symptoms that are not system malfunctions 41
- Troubleshooting 41
- 0 symptom noise of air conditioners indoor unit outdoor unit 42
- 1 symptom noise of air conditioners outdoor unit 42
- Minutes 42
- Symptom noise of air conditioners indoor unit 42
- Symptom the user interface reads u4 or u5 and stops but then restarts after a few 42
- Symptom the user interface reads u4 or u5 and stops but then restarts after a few minutes 42
- Symptom white mist comes out of a unit indoor unit 42
- Symptom white mist comes out of a unit indoor unit outdoor unit 42
- Troubleshooting 42
- 2 symptom dust comes out of the unit 43
- 3 symptom the units can give off odours 43
- 4 symptom the outdoor unit fan does not spin 43
- 5 symptom the display shows 88 43
- 6 symptom the compressor in the outdoor unit does not stop after a short heating 43
- 6 symptom the compressor in the outdoor unit does not stop after a short heating operation 43
- 7 symptom the inside of an outdoor unit is warm even when the unit has stopped 43
- 8 symptom hot air can be felt when the indoor unit is stopped 43
- Operation 43
- Troubleshooting 43
- Contact your dealer for removing and reinstalling the total unit moving units requires technical expertise 44
- Relocation 44
- Disposal 45
- Notice 45
- This unit uses hydrofluorocarbon contact your dealer when discarding this unit 45
- In this chapter 46
- Information requirements for eco design 46
- Technical data 46
- For the installer 47
- About loop by daikin 48
- About the box 48
- In this chapter 48
- Overview about the box 48
- A forklift can only be used for transport as long as the unit remains on its pallet 49
- About the box 49
- As shown above 49
- Notice 49
- Remove the 4 bolts fixing the unit to its pallet 49
- Remove the packaging material from the unit 49
- Take care not to damage the unit when removing the shrink foil with a cutter 49
- To unpack the outdoor unit 49
- Warning 49
- About the box 50
- Accessory pipes diameters 50
- Accessory pipes mm hp øa øb 50
- After filling in this table please put it on the switch box cover 50
- Be sure to fill out the blanks which are needed for after sale services 50
- Bottom connection 50
- Calculation of additional refrigerant charging amount 50
- For details concerning piping selection and calculation or how to operate the leak detection function please refer to the installation manual 50
- Front connection 50
- Gas pipe 50
- Liquid pipe 50
- Make sure that all accessories are available in the unit 50
- Only for 14 16 hp 50
- Outdoor unit 50
- Record for settings contents see installation manual 50
- Record of additional refrigerant charge amount and result of leak check operation 50
- Record of indoor unit model and installation site 50
- Request for the indication of installation information 50
- To remove the accessories from the outdoor unit 50
- To remove the transportation stay 50
- About the box 51
- About the units and options 52
- Identification label outdoor unit 52
- In this chapter 52
- Overview about the units and options 52
- About the outdoor unit 53
- About the units and options 53
- System layout 53
- About combining units and options 54
- About the units and options 54
- Combining units and options 54
- Possible combinations of indoor units 54
- Possible combinations of outdoor units 54
- About the units and options 55
- Possible options for the outdoor unit 55
- About the units and options 56
- In this chapter 57
- Installation site requirements of the outdoor unit 57
- Preparing the installation site 57
- Unit installation 57
- Unit installation 58
- Additional installation site requirements of the outdoor unit in cold climates 59
- Unit installation 59
- Securing safety against refrigerant leaks 60
- Unit installation 60
- Unit installation 61
- About opening the units 62
- Opening the unit 62
- To open the outdoor unit 62
- Unit installation 62
- To open the electrical component box of the outdoor unit 63
- Unit installation 63
- Mounting the outdoor unit 64
- To provide the installation structure 64
- Unit installation 64
- Notice 65
- Unit installation 65
- In this chapter 66
- Piping installation 66
- Preparing refrigerant piping 66
- Refrigerant piping requirements 66
- Piping installation 67
- Refrigerant piping insulation 67
- To select the piping size 67
- Piping installation 68
- Piping installation 69
- To select refrigerant branch kits 69
- About the piping length 70
- Piping installation 70
- Actual piping length pipe length between outdoo 71
- And indoor units 71
- Assume equivalent piping length of refnet joint 0 m and refnet header 1 m for 71
- Branch with refnet header 71
- Branch with refnet joint 71
- Branch with refnet joint and refnet header 71
- Calculation purposes of equivalent piping length not for refrigerant charge calculations 71
- Definitions 71
- Equivalent piping lengt 71
- Example 1 71
- Example description 71
- For system only containing vrv dx indoor units 71
- H1 difference in height between outdoor and indoor units 71
- H2 difference in height between indoor and indoor units 71
- H3 difference in height between outdoor and outdoor units 71
- Hp re read the first outdoor branch as seen from the indoor 71
- Pipe length between outdoo 71
- Piping installation 71
- Piping length vrv dx only 71
- Single outdoor 71
- System setup 71
- Term definition 71
- To all indoor units 71
- Total piping length total piping length from the outdoo 71
- Actual piping length 165 m 135 m 72
- Between outdoor and indoor units single installation multi combinations 72
- Branch with refnet header 72
- Branch with refnet joint 72
- Branch with refnet joint and refnet header 72
- Equivalent length 190 m 160 m 72
- Example 1 72
- Example 2 72
- Example 3 72
- Example description 72
- Indoor unit refnet joint refnet header outdoor multi connection piping kit 72
- Maximum allowable length 72
- Multi outdoor 72
- Piping installation 72
- Unit 6 a b h 165 m 72
- Unit 8 a b c d e f g p 135 m 72
- Unit 8 a b c d e f g p 165 m 72
- Unit 8 a i 165 m 72
- Unit 8 a i k 165 m 72
- With standard multi layout 72
- Piping installation 73
- Multiple outdoor units possible layouts 74
- Piping installation 74
- A to indoor unit 75
- B oil collects to the outmost outdoor unit when the system stops not allowed oil remains in piping allowed 75
- B piping between outdoor units 75
- B piping between outdoor units not allowed oil remains in piping allowed 75
- If the piping length between the outdoor units exceeds 2 m create a rise of 75
- If then 75
- Mm or more in the gas line within a length of 2 m from the kit 75
- Piping installation 75
- Stop valve and the piping between outdoor units as shown in the 4 correct possibilities of the figure below 75
- To avoid the risk of oil retention to the outmost outdoor unit always connect the 75
- About connecting the refrigerant piping 76
- Connecting the refrigerant piping 76
- Piping installation 76
- Precautions when connecting the refrigerant piping 76
- Multiple outdoor units knockout holes 77
- Piping installation 77
- To route the refrigerant piping 77
- Connect the stop valves to the field piping using the accessory pipes supplied with the unit 78
- For side connections the knockout hole on the bottom plate should be removed 78
- Information 78
- Notice 78
- Piping installation 78
- The connections to the branch kits are the responsibility of the installer field piping 78
- To connect the refrigerant piping to the outdoor unit 78
- Piping installation 79
- To connect the multi connection piping kit 79
- To connect the refrigerant branching kit 79
- Piping installation 80
- To braze the pipe end 80
- To protect against contamination 80
- 0 using the stop valve and service port 81
- Piping installation 81
- Piping installation 82
- 1 to remove the spun pipes 83
- Piping installation 83
- About checking the refrigerant piping 84
- Checking the refrigerant piping 84
- Cut off the lower part of the gas liquid and equalising stop valve pipes along the black line use an appropriate tool e g a pipe cutter 84
- It is very important that all refrigerant piping work is done before the units outdoor or indoor are powered on when the units are powered on the expansion valves will initialise this means that the valves will close 84
- Notice 84
- Piping installation 84
- Wait until all oil has dripped out before continuing with the connection of the field piping in case the recovery was not complete 84
- Warning 84
- When all gas and oil is recovered from the spun piping disconnect the charge hose and close the service ports 84
- Checking refrigerant piping general guidelines 85
- Piping installation 85
- Checking refrigerant piping setup 86
- Evacuate the system from the liquid and gas piping to 100 kpa 1 07 bar 5 torr absolute for more than 2 hours 86
- Gas line stop valve close 86
- Liquid line stop valve close 86
- Notice 86
- Once reached turn off the vacuum pump and check that the pressure does not rise for at least 1 minute 86
- Piping installation 86
- Should the pressure rise the system may either contain moisture see vacuum drying below or have leaks 86
- The leak test must satisfy the specifications of en378 2 86
- To check for leaks vacuum leak test 86
- To perform a leak test 86
- Valve a open 86
- Valve b open 86
- Valve c open 86
- Valve state of valve 86
- Piping installation 87
- To insulate the refrigerant piping 87
- To perform vacuum drying 87
- Charging refrigerant 88
- Piping installation 88
- Precautions when charging refrigerant 88
- A flow chart is available which gives an overview of the possibilities and actions to be taken see to charge refrigerant flow chart 4 91 89
- About charging refrigerant 89
- Formula 89
- Information 89
- Notice 89
- Once vacuum drying is finished additional refrigerant charging can start 89
- Piping installation 89
- To determine the additional refrigerant amount 89
- To speed up the refrigerant charging process it is in case of larger systems recommended to first pre charge a portion of refrigerant through the liquid line before proceeding with the manual charging this step is included in below procedure see to charge refrigerant 4 92 it can be skipped but charging will take longer then 89
- Piping installation 90
- For more information see to charge refrigerant 4 92 pre charging refrigerant 91
- Piping installation 91
- To charge refrigerant flow chart 91
- Piping installation 92
- To charge refrigerant 92
- A the calculated additional refrigerant amount is reached by above pre charging procedure 93
- After pre charging connect valve a to the refrigerant charge port and charge the remaining additional refrigerant through this port open all outdoor unit stop valves at this point valve a must remain closed 93
- B the total amount of refrigerant could not be charged by pre charging 93
- Charging refrigerant 93
- Close valves c and b and disconnect the manifold connection to the liquid line 93
- Close valves c and b disconnect the manifold connection to the liquid line and perform steps 4 8 93
- Do one of the following 93
- If then 93
- Information 93
- Notice 93
- Piping installation 93
- Piping installation 94
- Step 6 to manually charge refrigerant 94
- Checks after charging refrigerant 95
- Error codes when charging refrigerant 95
- Piping installation 95
- Make sure to open all stop valves after pre charging the refrigerant 96
- Notice 96
- Operating with the stop valves closed will damage the compressor 96
- Piping installation 96
- About connecting the electrical wiring 97
- Electrical installation 97
- In this chapter 97
- Precautions when connecting the electrical wiring 97
- Caution 98
- Electrical installation 98
- Notice 98
- Warning 98
- About the electrical wiring 99
- Diii transmission wiring between communication box and outdoor unit 99
- Electrical installation 99
- Example 99
- Field wiring consists of 99
- Field wiring overview 99
- It is important to keep the power supply and the transmission wiring separated from each other in order to avoid any electrical interference the distance between both wiring should always be at least 25 mm 99
- Notice 99
- Power supply including earth 99
- Rs 485 transmission wiring between communication box and monitoring system 99
- The transmission wiring outside the unit should be wrapped and routed together with the field piping 99
- Electrical installation 100
- Guidelines when knocking out knockout holes 100
- Safety device requirements 100
- Electrical installation 101
- To route and fix the transmission wiring 101
- A knockout hole has to be removed close the hole to avoid small animals or dirt from 102
- A transmission wiring possibility 1 102
- A wiring between the units indoor outdoor f1 f2 left 102
- B internal transmission wiring q1 q2 102
- B transmission wiring possibility 2 102
- C plastic bracket 102
- C tie wrap fix to factory mounted low voltage wiring 102
- D field supplied clamps 102
- D tie wrap 102
- Electrical installation 102
- Entering 102
- Fix to pipe insulation with tie wraps 102
- Fix to the indicated plastic brackets using field supplied clamping material 102
- Electrical installation 103
- In case of multi outdoor unit installation 103
- In case of single outdoor unit installation 103
- Indoor units is connected 103
- Information 103
- M3 a1p 0 0 6 103
- Must be connected to the q1 q2 out multi terminals connecting the wires to the f1 f2 terminals results in system malfunction 103
- Screw size tightening torque n m 103
- Terminals of the pcb in the outdoor unit to which the interconnecting wiring for the indoor units is connected 103
- The base unit is the outdoor unit to which the interconnecting wiring for the 103
- The interconnecting wiring between the outdoor units in the same piping system 103
- The wiring for the other systems must be connected to the f1 f2 out out 103
- The wiring from the indoor units must be connected to the f1 f2 in out terminals on the pcb in the outdoor unit 103
- Tightening torque for the transmission wiring terminal screws 103
- To connect the transmission wiring 103
- After installing the transmission wires inside the unit wrap them along with the on site refrigerant pipes using finishing tape as shown in figure below 104
- Electrical installation 104
- Notice 104
- The power supply wiring can be routed from the front and left side fix it to the lower mounting hole 104
- To finish the transmission wiring 104
- To route and fix the power supply 104
- Caution 105
- Electrical installation 105
- Information 105
- M8 ground 105
- M8 power terminal block 5 7 105
- Notice 105
- Screw size tightening torque n m 105
- The power supply must be clamped to the plastic bracket using field supplied clamp material to prevent external force being applied to the terminal the green and yellow striped wire must be used for earthing only 105
- Tightening torque for the terminal screws 105
- To connect the power supply 105
- Electrical installation 106
- To check the insulation resistance of the compressor 106
- About making field settings 107
- Configuration 107
- In this chapter 107
- Making field settings 107
- Overview configuration 107
- Configuration 108
- Field setting components 108
- To access the field setting components 108
- Configuration 109
- To access mode 1 or 2 109
- Configuration 110
- To use mode 1 110
- Configuration 111
- To use mode 2 111
- Configuration 112
- Mode 1 monitoring settings 112
- Configuration 113
- Configuration 114
- Mode 2 field settings 114
- Configuration 115
- Configuration 116
- Configuration 117
- Configuration 118
- Energy saving and optimum operation 118
- To connect the pc configurator to the outdoor unit 118
- Available main operation methods 119
- Configuration 119
- Available comfort settings 120
- Configuration 120
- Configuration 121
- Configuration 122
- Example automatic mode during cooling 122
- Room temperature evolution 122
- Configuration 123
- Example automatic mode during heating 123
- Room temperature evolution 123
- Configuration 124
- E quick 124
- F powerful 124
- Commissioning 125
- In this chapter 125
- Overview commissioning 125
- Precautions when commissioning 125
- After the installation of the unit first check the items listed below once all checks are fulfilled the unit must be closed power up the unit after it is closed 126
- Caution 126
- Checklist before commissioning 126
- Commissioning 126
- During test operation the outdoor unit and the indoor units will start up make sure that the preparations of all indoor units are finished field piping electrical wiring air purge see installation manual of the indoor units for details 126
- Information 126
- Notice 126
- Abnormalities on indoor units cannot be checked for each unit separately after 127
- About the test run 127
- Check for incorrect wiring communication check with indoor units 127
- Check of the stop valves opening 127
- Commissioning 127
- Information 127
- Judgement of piping length 127
- Notice 127
- The procedure below describes the test operation of the complete system this operation checks and judges following items 127
- The test operation is finished check the indoor units one by one by performing a normal operation using the user interface refer to the indoor unit installation manual for more details concerning the individual test run 127
- Commissioning 128
- To perform a test run 128
- Commissioning 129
- Correcting after abnormal completion of the test run 129
- Operating the unit 129
- Hand over to the user 130
- In this chapter 131
- Maintenance and service 131
- Maintenance safety precautions 131
- To prevent electrical hazards 131
- About service mode operation 132
- Maintenance and service 132
- To use vacuum mode 132
- Danger risk of explosion 133
- Maintenance and service 133
- Notice 133
- This should be done with a refrigerant recovery unit follow the same procedure as for vacuuming method 133
- To recover refrigerant 133
- Error codes overview 134
- In this chapter 134
- Solving problems based on error codes 134
- Troubleshooting 134
- Troubleshooting 135
- Troubleshooting 136
- Troubleshooting 137
- Troubleshooting 138
- Troubleshooting 139
- Disposal 140
- Notice 140
- In this chapter 141
- Service space outdoor unit 141
- Technical data 141
- Technical data 142
- Piping diagram outdoor unit 143
- Piping diagram rxytq10 12 143
- Piping diagram rxytq8 143
- Technical data 143
- Piping diagram rxytq14 16 144
- Technical data 144
- Technical data 145
- Wiring diagram outdoor unit 145
- Technical data 146
- Technical data 147
- Technical data 148
- Technical data 149
- Glossary 150
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