![Daikin LRYEN10A7Y1 [83/140] Checking the refrigerant piping](/img/pdf.png)
Daikin LRYEN10A7Y1 [83/140] Checking the refrigerant piping
![Daikin LRYEN10A7Y1 [83/140] Checking the refrigerant piping](/views2/1801919/page83/bg53.png)
16 | Piping installation
Installer and user reference guide
83
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08
When brazing Follow the brazing instructions in the dryer manual.
Remove the dryer cap immediately before brazing (to
prevent absorption of moisture).
If dryer paint burnt during brazing, repair it. For repair
paint details, contact the manufacturer.
Flow direction If the dryer specifies a flow direction, install accordingly.
(a)
Follow the instructions in the installation manual of the dryer.
16.3.8 Guidelines to install safety valves
When installing a safety valve, always keep the design pressure of the circuit in
mind. See "7.2Design pressure"[427].
NOTICE
The design pressure of high pressure side of the connected refrigeration parts MUST
be 9MPa (90bar).
NOTICE
If the design pressure of the lower pressure side of refrigeration parts is different
from 90 bar (for example: 60 bar), a safety valve MUST be installed on the field
piping according to this design pressure. It is NOT possible to connect refrigeration
parts with design pressure below 60bar.
NOTICE
The design pressure of the connected air conditioning parts MUST be 12 MPa
(120bar). If this is not the case, please contact your dealer for assistance.
CAUTION
When installing a safety valve, ALWAYS add enough support to the valve. An
activated safety valve is under high pressure. If not installed securely, the safety valve
may cause damage to the piping or the unit.
16.3.9 Guidelines to install blow off piping
The installer has to install the blow off piping.
▪ Place the end of the blow off piping in a horizontal position (for example, to
prevent rain dripping in). Never point the piping end downwards.
▪ Place the end of the blow off pipe on a location where it cannot hurt or harm
people or items.
▪ Calculate the maximum piping length according to standard EN13136.
▪ Thread type must be G1 according to standard ISO228
16.4 Checking the refrigerant piping
Keep the following in mind:
▪ Refrigerant R744 is precharged into the unit.
▪ Always keep both liquid and gas stop valves closed during leak test and vacuum
drying of the field piping.
Содержание
- Co₂ conveni pack outdoor unit 1
- Installer and user reference guide 1
- About the box 38 2
- About the documentation 5 2
- About the system 23 2
- About the units and options 41 2
- Before operation 25 2
- Disposal 36 2
- Energy saving and optimum operation 28 2
- For the installer 37 2
- For the user 17 2
- General safety precautions 6 2
- Installer and user reference guide 2
- Maintenance and service 29 2
- Operation 27 2
- Relocation 35 2
- Specific installer safety instructions 13 2
- Table of contents 2
- Troubleshooting 32 2
- User safety instructions 18 2
- Charging refrigerant 101 3
- Electrical installation 88 3
- Finishing the outdoor unit installation 107 3
- Piping installation 64 3
- Table of contents 3
- Unit installation 50 3
- Commissioning 112 4
- Configuration 108 4
- Disposal 128 4
- Glossary 139 4
- Hand over to the user 120 4
- Maintenance and service 121 4
- Table of contents 4
- Technical data 129 4
- Troubleshooting 123 4
- About the documentation 5
- About this document 5
- About the documentation 6
- General safety precautions 6
- Meaning of warnings and symbols 6
- For the installer 7
- General 7
- General safety precautions 7
- General safety precautions 8
- Installation site 8
- Caution 9
- General safety precautions 9
- Installation space requirements 9
- Notice 9
- Warning 9
- General safety precautions 10
- Refrigerant in case of r744 10
- Caution 11
- Could cause compressor operation failure 11
- Danger risk of electrocution 11
- Do not charge liquid refrigerant directly from a gas line liquid compression 11
- Electrical 11
- Ensure pressure resistance and prevent foreign materials from entering into the system 11
- General safety precautions 11
- Only use tools exclusively for the refrigerant type used in the system this to 11
- Open refrigerant cylinders slowly 11
- Warning 11
- Caution 12
- General safety precautions 12
- Notice 12
- Warning 12
- Always observe the following safety instructions and regulations 13
- Caution 13
- General installation requirements 13
- Installation site see 15 preparing the installation site 4 50 13
- Specific installer safety instructions 13
- Warning 13
- Caution 14
- Information 14
- Notice 14
- Refrigerant piping installation see 16 piping installation 4 64 14
- Specific installer safety instructions 14
- Warning 14
- Electrical installation see 17 electrical installation 4 88 15
- Information 15
- Notice 15
- Specific installer safety instructions 15
- Warning 15
- Information 16
- Specific installer safety instructions 16
- Warning 16
- For the user 17
- General 18
- User safety instructions 18
- Caution do not insert fingers rods or other objects into the air inlet or outlet when the fan is rotating at high speed it will cause injury 19
- Caution if this unit is installed indoors it must always be equipped with an electrically powered safety measure such as a c 19
- Detector 19
- Instructions for safe operation 19
- Refrigerant leak detector field supply in order to be effective the unit must always be electrically powered after installation if for any reason the c 19
- Refrigerant leak detector is powered off always use a portable c 19
- User safety instructions 19
- Warning do not modify disassemble remove reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electric shock or fire contact your dealer 19
- User safety instructions 20
- User safety instructions 21
- User safety instructions 22
- About the system 23
- System layout 23
- About the system 24
- Before operation 25
- Before operation 26
- Dedicated functions exist depending on the type of indoor unit refer to dedicated installation operation manual for more information 26
- Design pressure 27
- Operation 27
- Operation range 27
- Energy saving and optimum operation 28
- Maintenance and service 29
- Maintenance before a long stop period 29
- About the refrigerant 30
- Maintenance after a long stop period 30
- Maintenance and service 30
- Recommended maintenance and inspection 30
- Maintenance and service 31
- Troubleshooting 32
- Troubleshooting 33
- Error codes overview 34
- Troubleshooting 34
- Contact your dealer for removing and reinstalling the total unit moving units requires technical expertise 35
- Relocation 35
- Disposal 36
- Notice 36
- For the installer 37
- About the box 38
- In this chapter 38
- Outdoor unit 38
- Overview about the box 38
- To unpack the outdoor unit 38
- About the box 39
- To handle the outdoor unit 39
- About the box 40
- Also see the label about handling on the unit 40
- Capacity up unit 40
- Forklift 40
- Notice 40
- Outdoor unit 40
- To remove the accessories from the outdoor unit 40
- Use filler cloth on the forklift arms to prevent damage to the unit damage to the painting of the unit decreases the anti corrosion protection 40
- About the units and options 41
- Identification 41
- Identification label outdoor unit 41
- In this chapter 41
- About the outdoor unit 42
- About the units and options 42
- About the units and options 43
- Labels on outdoor unit 43
- Warning 43
- About the units and options 44
- Warning 44
- About the units and options 45
- Caution 45
- Caution when performing other servicing 45
- Caution when servicing the switch box 45
- Caution when servicing the switch box caution when servicing the switch box 45
- Electric shock caution electric shock caution 45
- Electric shock caution warning 45
- Label on capacity up unit 45
- Text on warning label translation 45
- Warning warning 45
- About the units and options 46
- System layout 46
- About the units and options 47
- Combining units and options 47
- Fxsn o 47
- Indoor unit outdoor unit 47
- Information 47
- Lryen10 47
- Possible combinations of indoor units 47
- The following indoor units can be combined with the outdoor unit 47
- About the units and options 48
- Constraints for air conditioning 48
- Indoor unit constraints 48
- Possible options for the outdoor unit 48
- About the units and options 49
- Constraints for refrigeration 49
- In this chapter 50
- Installation site requirements of the outdoor unit 50
- Preparing the installation site 50
- Unit installation 50
- Unit installation 51
- Unit installation 52
- Additional installation site requirements for co₂ refrigerant 53
- Additional installation site requirements of the outdoor unit in cold climates 53
- Unit installation 53
- Unit installation 54
- Unit installation 55
- Unit installation 56
- Unit installation 57
- About opening the units 58
- Opening and closing the unit 58
- To open the outdoor unit 58
- Unit installation 58
- To open the electrical component box of the outdoor unit 59
- Unit installation 59
- Attach the small front plates to the front panels 60
- Electrical component box of the capacity up unit 60
- Notice 60
- Reinstall the front panels 60
- Reinstall the small front plates of each removed front panel 60
- To close the outdoor unit 60
- Unit installation 60
- When closing the outdoor unit cover make sure that the tightening torque does not exceed 4 n m 60
- About mounting the outdoor unit 61
- Mounting the outdoor unit 61
- Precautions when mounting the outdoor unit 61
- To provide the installation structure 61
- Unit installation 61
- Capacity up unit 62
- Or concrete the foundation must be larger than the grey marked area 62
- Outdoor unit 62
- The preferred installation is on a solid longitudinal foundation steel beam frame 62
- Unit installation 62
- To install the outdoor unit on the installation structure 63
- To provide drainage 63
- Unit installation 63
- In this chapter 64
- Piping installation 64
- Preparing refrigerant piping 64
- Refrigerant piping requirements 64
- Piping installation 65
- Refrigerant piping length and height difference 65
- Refrigerant piping material 65
- Piping installation 66
- Determine the proper size using the following tables and reference figure only for indication 67
- If the outdoor unit is installed lower than the indoor unit install the riser piping close to the indoor unit when the compressor of the outdoor unit starts a correct installed riser piping will prevent liquid from flowing back to the outdoor unit 67
- Piping installation 67
- The refrigerant suction piping must always run down 67
- To install riser piping 67
- To select the piping size 67
- Air conditioner ø15 t1 5 k65 ø19 t1 k65 68
- Following chapters 68
- For outdoor unit with capacity up unit see 18 to determine additional 68
- For outdoor unit without capacity up unit 18 to determine additional 68
- In case the required pipe sizes inch sizes are not available it is also allowed to use other diameters mm sizes taken the following into account 68
- Liquid side gas side 68
- Piping installation 68
- Piping size between outdoor unit and first branch 68
- Refrigerant amount 4 104 68
- Refrigerant amount 4 104 but additional refrigerant is not needed because the capacity up unit is already precharged 68
- Refrigeration ø12 t0 5 k65 68
- Select the pipe size nearest to the required size 68
- Supply 68
- System side piping outer diameter size mm 68
- The additional refrigerant calculation has to be adjusted as mentioned in the 68
- Use the suitable adapters for the change over from inch to mm pipes field 68
- When the equivalent pipe length between outdoor unit and the furthest indoor unit is 90 m or more b d the size of the main gas pipe b must be increased size up if the recommended gas pipe size up is not available you must use the standard size which might result in a small capacity decrease 68
- Ø15 t1 5 k65 68
- Piping installation 69
- To select refrigerant branch kits 69
- Piping installation 70
- To select expansion valves for refrigeration 70
- For more information about the card on the unit see card about stop valves and service ports 4 44 71
- Notice 71
- Overview stop valves for maintenance 71
- Overview stop valves for refrigeration and air conditioner 71
- Piping installation 71
- Using stop valves and service ports 71
- Warning 71
- Do not apply excessive force to the stop valve doing so may break the valve 72
- Make sure to keep all stop valves open during operation 72
- Piping installation 72
- Take the following guidelines into account 72
- The figures below show the name of each part required in handling the stop 72
- The gas and liquid stop valves are factory closed 72
- To handle the stop valve 72
- Piping installation 73
- Piping installation 74
- To handle the service port 74
- About connecting the refrigerant piping 75
- Connecting the refrigerant piping 75
- Piping installation 75
- Tightening torques 75
- Piping installation 76
- Precautions when connecting the refrigerant piping 76
- Piping installation 77
- To remove the spun pipes 77
- Any gas or oil remaining inside the stop valve may blow off the spun piping 78
- For the capacity up unit 78
- For the outdoor unit 78
- If the stop valve was initially open a small amount of refrigerant or oil may leak out 78
- Information 78
- Never remove the spun piping by brazing 78
- Piping installation 78
- To connect the refrigerant piping to the outdoor unit 78
- Wait until all oil has dripped out before continuing with the connection of the field piping in case the recovery was not complete 78
- Warning 78
- You can now connect the ingoing and outgoing refrigerant piping 78
- You can route refrigerant piping to the front or side of the unit 78
- After making the knockout holes we recommend you remove the burrs and paint 79
- Avoid damaging the casing 79
- Connect the piping to the outdoor unit 79
- Front connection 79
- If applicable remove the knockout and connect the piping to the capacity up unit 79
- Notice 79
- Piping installation 79
- Precautions when making knockout holes 79
- Protective tape to prevent damage 79
- Remove the knockout and connect the piping to the outdoor unit 79
- Remove the knockout on the bottom plate 79
- Side connection 79
- The edges and areas around the edges using repair paint to prevent rusting 79
- When passing electrical wiring through the knockout holes wrap the wiring with 79
- A b c d e 80
- Always protect the surrounding surfaces e g using insulation foam against heat 80
- Copper brazing filler alloy cup279 cup281 or cup284 din en iso 17672 which does not require flux flux has an extremely harmful influence on refrigerant piping systems e g if a chlorine based flux is used it will cause pipe corrosion or in particular if the flux contains fluorine it will deteriorate the refrigerant oil 80
- Do not use anti oxidants when brazing pipe joints 80
- Do not use flux when brazing copper to copper refrigerant piping use phosphor 80
- General guidelines 80
- If applicable connect the piping to the capacity up unit 80
- Of oxidized film on the inside of the piping this film adversely affects valves and compressors in the refrigerating system and prevents proper operation 80
- Piping installation 80
- Preheating the piping 80
- Residue can clog pipes and break equipment 80
- Set the nitrogen pressure to 20 kpa 0 bar just enough so it can be felt on the 80
- Skin with a pressure reducing valve 80
- To braze the pipe end 80
- When brazing 80
- When brazing blow through with nitrogen to prevent creation of large quantities 80
- Adding brazing material 81
- Always use k65 t joints for refrigerant branching 81
- Caution 81
- Guidelines to connect t joints 81
- Information 81
- K65 t joints are field supplied 81
- Piping installation 81
- Piping joints and fittings shall comply with the requirements of en 14276 2 81
- Guidelines to install a dryer 82
- Piping installation 82
- Checking the refrigerant piping 83
- Guidelines to install blow off piping 83
- Guidelines to install safety valves 83
- Piping installation 83
- About checking the refrigerant piping 84
- Checking refrigerant piping general guidelines 84
- Piping installation 84
- Also see the indoor unit installation manual for more details leak test and vacuum drying should be done before the power supply is set to the unit 85
- Checking refrigerant piping setup 85
- Connect to the gas side c and liquid side d of the circuit you want to test see 16 checking refrigerant piping setup 4 85 85
- Evacuate the system from the liquid and gas piping to 100 kpa 1 07 bar 5 torr absolute for more than 2 hours 85
- If there is a pressure drop locate the leak and repair 85
- Make sure there is no pressure drop for at least 24 hours 85
- Notice 85
- Once reached turn off the vacuum pump and check that the pressure does not rise for at least 1 minute 85
- Piping installation 85
- Pressurize both liquid side and gas side of the air conditioner circuit up to 3 mpa 30 bar from the charge port of the stop valve 85
- Pressurize both liquid side and gas side of the refrigeration circuit up to 3 mpa 30 bar from the charge port of the stop valve 85
- Should the pressure rise the system may either contain moisture see vacuum drying below or have leaks 85
- The connections to the indoor units and all indoor units should also be leak and vacuum tested keep any possible field supplied field piping valves open as well 85
- The leak test must satisfy the specifications of en378 2 85
- To check for leaks vacuum leak test 85
- To perform a leak test 85
- Piping installation 86
- To perform vacuum drying 86
- Insulating the refrigerant piping 87
- Piping installation 87
- About electrical compliance 88
- Electrical installation 88
- In this chapter 88
- Electrical installation 89
- Field wiring overview 89
- Information 89
- After knocking out the holes we recommend removing any burrs and paint the 90
- Edges and areas around the holes using repair paint to prevent rusting 90
- Electrical installation 90
- End of the wire place the round crimp style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool 90
- Guidelines when connecting the electrical wiring 90
- Guidelines when knocking out knockout holes 90
- If stranded conductor wires are used install a round crimp style terminal on the 90
- Keep the following in mind 90
- The wires by wrapping the wiring with protective tape putting the wires through field supplied protective wire conduits at that location or install suitable field supplied wire nipples or rubber bushings into the knockout holes 90
- To punch a knockout hole in a front panel hit on it with a hammer 90
- To punch a knockout hole in the bottom panel drill holes where indicated 90
- Warning 90
- When passing electrical wiring through the knockout holes prevent damage to 90
- Electrical installation 91
- Electrical installation 92
- Specifications of standard wiring components 92
- Connections to the outdoor unit 93
- Electrical installation 93
- Low voltage wiring outdoor unit 93
- Electrical installation 94
- Connections routing fixing 95
- Electrical installation 95
- High voltage wiring outdoor unit 95
- Connections to the capacity up unit 96
- Electrical installation 96
- Connections routing fixing 97
- Details diii transmission wiring 97
- Details remote operation switch 97
- Electrical installation 97
- Low voltage wiring capacity up unit 97
- Notice 97
- See 17 specifications of standard wiring components 4 92 97
- Electrical installation 98
- Connections routing fixing 99
- Details output signals 99
- Electrical installation 99
- High voltage wiring capacity up unit 99
- Notice 99
- Wiring output signals 99
- Electrical installation 100
- About charging refrigerant 101
- About the refrigerant 101
- Charging refrigerant 101
- In this chapter 101
- Charging refrigerant 102
- Cylinder types 102
- Information 102
- Phase diagram of r744 102
- Precautions when charging refrigerant 102
- The following cylinder types are used to charge additional r744 refrigerant 102
- Warning 102
- Caution 103
- Charging refrigerant 103
- Information 103
- Notice 103
- Warning 103
- Charging refrigerant 104
- To determine additional refrigerant amount 104
- Charging refrigerant 105
- Charging refrigerant 106
- To charge refrigerant 106
- Finishing the outdoor unit installation 107
- To check the insulation resistance of the compressor 107
- About making field settings 108
- Configuration 108
- In this chapter 108
- Making field settings 108
- Overview configuration 108
- To access the field setting components 108
- After making the field settings reattach the inspection hole covers and the front plate 109
- Close the cover of the electrical component box before turning on the power 109
- Configuration 109
- Dip switches 109
- Ds1 target evaporating 109
- Factory setting 109
- Field setting components 109
- For low load restrictions see 14 constraints for refrigeration 4 49 109
- Notice 109
- Temperature normal load low loa 109
- Use ds1 to set the target evaporating temperature for the refrigeration side do not change ds2 109
- Configuration 110
- To access mode 1 or 2 110
- Configuration 111
- Information 111
- Switching between modes 111
- Use bs1 to switch between the default situation mode 1 and mode 2 111
- Commissioning 112
- In this chapter 112
- Overview commissioning 112
- Precautions when commissioning 112
- 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 113
- Checklist before commissioning 113
- Commissioning 113
- 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 113
- Notice 113
- About the test run 114
- Commissioning 114
- To perform a test run 7 segment display 114
- Commissioning 115
- Test run checks 115
- Commissioning 116
- Commissioning 117
- Commissioning 118
- Correcting after abnormal completion of the test run 118
- Logbook 118
- Operating the unit 118
- Commissioning 119
- Hand over to the user 120
- In this chapter 121
- Maintenance and service 121
- Maintenance safety precautions 121
- Overview maintenance and service 121
- To prevent electrical hazards 121
- Maintenance and service 122
- To release refrigerant 122
- In this chapter 123
- Overview troubleshooting 123
- Precautions when troubleshooting 123
- Solving problems based on error codes 123
- Troubleshooting 123
- Error codes overview 124
- Troubleshooting 124
- Troubleshooting 125
- Troubleshooting 126
- Troubleshooting 127
- Disposal 128
- Notice 128
- In this chapter 129
- Service space outdoor unit 129
- Technical data 129
- Information 130
- Technical data 130
- Further specifications can be found in the technical engineering data 131
- Information 131
- Technical data 131
- Piping diagram outdoor unit 132
- Technical data 132
- Piping diagram capacity up unit 133
- Technical data 133
- Technical data 134
- Wiring diagram outdoor unit 134
- Technical data 135
- Technical data 136
- Technical data 137
- Technical data 138
- Glossary 139
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