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Daikin LRYEN10A7Y1 [18/44] Piping installation
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13 Piping installation
Installation and operation manual
18
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
Piping type Outer
diameter
(Ø)
Temper
grade
Thickness
(t)
(a)
Liquid piping 15.9mm
(5/8")
R300
(drawn)
≥1.05mm
t
Ø
Gas piping 19.1mm
(3/4")
R300
(drawn)
≥1.30mm
(a)
Depending on the applicable legislation and the maximum
working pressure of the unit (see "PS High" on the unit name
plate), larger piping thickness might be required.
13.1.3 Refrigerant piping length and height
difference
Requirements and limits
The piping lengths and height differences must comply with the
following requirements. For an example, see "13.1.4 To select the
piping size"[418].
Requirement Limit
LRYEN10* LRYEN10* +
LRNUN5*
Maximum total piping length
Examples:
▪ A+B+C+D+(E or F)
(a)
≤Limit
▪ a+c+d+(e or f)
(a)
≤Limit
▪ A2+B2+(C2 or D2)
(a)
≤Limit
▪ a2+b2+(c2 or d2)
(a)
≤Limit
Refrigeration side: 130m
Air conditioning side: 130m
Piping length between
LRYEN10* and LRNUN5*
Not specified, but piping must be
horizontal
Maximum actual piping length
▪ Example refrigeration side:
▪ C+D+(E or F)
(a)
▪ c+d+(e or f)
(a)
▪ c+g
▪ j
▪ Example air conditioner side:
▪ B2+(C2 or D2)
(a)
▪ b2+(c2 or d2)
(a)
Refrigeration side: 50m
Air conditioning side: 30m
Maximum
height
difference
between
outdoor unit
and indoor
unit
Outdoor higher
than indoor
Example: H2,
H4≤Limit
35m
"To install an oil trap"[418]
Outdoor unit
lower than
indoor unit
Example: H2,
H4≤Limit
10m
"To install riser piping"[418]
Maximum height difference
between blower coil and
showcase
▪ Example: H3≤Limit
5m
Requirement Limit
LRYEN10* LRYEN10* +
LRNUN5*
Maximum height difference
between air conditioners
▪ Example: H1≤Limit
0.5m
(a)
Whichever is longer
To install an oil trap
If the outdoor unit is installed higher than the indoor unit, install an oil
trap in the gas piping every 5meter. Oil traps will make the oil return
more easily.
a
c
b
a Showcase
b Height difference=5m
c Trap
The refrigerant suction piping must always run down:
a
b
a
b
a Outdoor unit or indoor unit
b Flow direction in refrigerant suction piping
To install riser piping
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.
a
b
a Outdoor unit
b Indoor unit
c Riser piping up to indoor unit.
13.1.4 To select the piping size
Determine the proper size using the following tables and reference
figure (only for indication).
Содержание
- Co ₂ conveni pack outdoor unit and capacity up unit 1
- Installation and operation manual 1
- Lryen10a7y1 lrnun5a7y1 1
- B1 b2 b3 2
- C1 c2 c3 2
- Installation and operation manual 2
- About the box 10 3
- About the documentation 3
- About the documentation 3 3
- About the system 8 3
- About the units and options 11 3
- About this document 3
- Authorised installers end users 3
- Charging refrigerant 31 3
- Commissioning 34 3
- Configuration 33 3
- Disposal 10 3
- Electrical installation 25 3
- For the installer 10 3
- For the user 5 3
- Maintenance and service 9 3
- Operation 8 3
- Piping installation 17 3
- Relocation 10 3
- Specific installer safety instructions 4 3
- Table of contents 3
- Target audience 3
- Technical data 40 3
- Troubleshooting 37 3
- Troubleshooting 9 3
- Unit installation 13 3
- User safety instructions 5 3
- Specific installer safety instructions 4
- For the user 5
- User safety instructions 5
- General 6
- Instructions for safe operation 6
- About the system 8
- Design pressure 8
- Do not use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired 8
- If the refrigerant leaks in high concentrations in the room it may have negative effects on its occupants such as asphyxiation and carbon dioxide poisoning ventilate the room and contact the dealer where you purchased the unit 8
- Inside the unit is odourless non flammable and normally does not leak 8
- Leaving the unit running under such circumstances may cause breakage electric shock or fire contact your dealer 8
- Operation 8
- Operation range 8
- Stop operation and shut off the power if anything unusual occurs burning smells etc 8
- System layout 8
- The r744 refrigerant c 8
- Warning 8
- About the refrigerant 9
- Maintenance and service 9
- Recommended maintenance and inspection 9
- Troubleshooting 9
- About the box 10
- Disposal 10
- Error codes overview 10
- For the installer 10
- Outdoor unit 10
- Relocation 10
- To handle the outdoor unit 10
- To unpack the outdoor unit 10
- About the outdoor unit 11
- About the units and options 11
- To remove the accessories from the outdoor unit 11
- About the units and options 12
- Labels on outdoor unit 12
- System layout 12
- Warning 12
- Additional installation site requirements for co ₂ refrigerant 13
- Additional installation site requirements for co₂ refrigerant 13
- Additional installation site requirements of the outdoor unit in cold climates 13
- Indoor unit constraints 13
- Installation site requirements of the outdoor unit 13
- Preparing the installation site 13
- Unit installation 13
- Appropriate measures 14
- Opening and closing the unit 14
- To determine the minimum number of appropriate measures 14
- To open the outdoor unit 14
- Unit installation 14
- To close the outdoor unit 15
- To open the electrical component box of the outdoor unit 15
- Unit installation 15
- Mounting the outdoor unit 16
- To provide the installation structure 16
- Unit installation 16
- Piping installation 17
- Preparing refrigerant piping 17
- Refrigerant piping material 17
- Refrigerant piping requirements 17
- To install the outdoor unit 17
- To provide drainage 17
- Piping installation 18
- Refrigerant piping length and height difference 18
- To select the piping size 18
- Piping installation 19
- Piping size between branching areas or between first and second branch 19
- Piping size between outdoor unit and first branch 19
- Piping size from branch to indoor unit 19
- Piping installation 20
- Stop valve size 20
- To close the stop valve 20
- To handle the stop valve 20
- To open the stop valve 20
- To select expansion valves for refrigeration 20
- To select refrigerant branch kits 20
- Using stop valves and service ports 20
- Piping installation 21
- Tightening torques 21
- To close the service port 21
- To handle the service port 21
- To open the service port 21
- Connecting the refrigerant piping 22
- Piping installation 22
- To connect the refrigerant piping to the outdoor unit 22
- To remove the spun pipes 22
- Guidelines to connect t joints 23
- Guidelines to install a dryer 23
- Guidelines to install safety valves 23
- Piping installation 23
- Checking refrigerant piping setup 24
- Checking the refrigerant piping 24
- Insulating the refrigerant piping 24
- Piping installation 24
- To perform a leak test 24
- To perform vacuum drying 24
- About electrical compliance 25
- Electrical installation 25
- Electrical installation 26
- Field wiring overview 26
- Electrical installation 27
- Guidelines when connecting the electrical wiring 27
- Guidelines when knocking out knockout holes 27
- Specifications of standard wiring components 27
- Connections to the outdoor unit 28
- Electrical installation 28
- Low voltage wiring outdoor unit 28
- Connections to the capacity up unit 29
- Electrical installation 29
- High voltage wiring outdoor unit 29
- Electrical installation 30
- High voltage wiring capacity up unit 30
- Low voltage wiring capacity up unit 30
- Charging refrigerant 31
- Precautions when charging refrigerant 31
- Charging refrigerant 32
- To charge refrigerant 32
- To determine additional refrigerant amount 32
- About making field settings 33
- Configuration 33
- Field setting components 33
- Making field settings 33
- To access mode 1 or 2 33
- To access the field setting components 33
- Bs1 5 s 34
- Checklist before commissioning 34
- Commissioning 34
- Precautions when commissioning 34
- About the test run 35
- Commissioning 35
- Test run checks 35
- To perform a test run 7 segment display 35
- Bs1 bs2 bs3 36
- Commissioning 36
- Correcting after abnormal completion of the test run 36
- Logbook 36
- Error codes overview 37
- Solving problems based on error codes 37
- Troubleshooting 37
- Troubleshooting 38
- Troubleshooting 39
- A subset of the latest technical data is available on the regional daikin website publicly accessible the full set of latest technical data is available on the daikin business portal authentication required 40
- Piping diagram outdoor unit 40
- Technical data 40
- Piping diagram capacity up unit 41
- Technical data 41
- Technical data 42
- Wiring diagram outdoor unit 42
- Technical data 43
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