DAIKIN R-410A OPERATION MANUAL
EDUS 391004 - N
Installation
AMERICASAMERICAS
EDUS391004-N
Installation of
Outdoor Units
1. Center of Gravity .........................................................................................2
1.1 460V ............................................................................................................. 2
1.2 208/230V ...................................................................................................... 5
2. Foundation Drawing ....................................................................................8
3. REFNET Pipe System.................................................................................9
3.1 Layout Example............................................................................................ 9
3.2 Field Refrigerant Piping.............................................................................. 11
3.3 REFNET Joints and Headers ..................................................................... 12
4. REFNET Pipe System...............................................................................14
4.1 REFNET Joint (Branch Kit) ........................................................................ 14
4.2 REFNET Header (Branch Kit) .................................................................... 18
4.3 Outdoor Unit Multi Connection Piping Kit ................................................... 22
5. Installation .................................................................................................43
5.1 RXYQ72~360PBYD (Heat Pump, 460V)
RXYQ72~360PBTJ (Heat Pump, 208/230V).............................................. 43
5.2 REYQ72~120PBYD (Heat Recovery, 460V)
REYQ72~144PBTJ (Heat Recovery, 208/230V)........................................ 67
5.3 REYQ144~336PBYD (Heat Recovery, 460V)
REYQ168~336PBTJ (Heat Recovery, 208/230V)...................................... 89
6. Field Setting ............................................................................................112
6.1 460V ......................................................................................................... 112
6.2 208/230V .................................................................................................. 120
Installation of Outdoor Units 1
Center of Gravity EDUS391004-N
4D058650B
4D058651B
1. Center of Gravity
1.1 460V
REMQ72PBYD
REMQ96PBYD / REMQ120PBYD
2 Installation of Outdoor Units
EDUS391004-N Center of Gravity
4D070791
4D070790
RXYQ72PBYD
RXYQ96PBYD / RXYQ120PBYD
Installation of Outdoor Units 3
Center of Gravity EDUS391004-N
4D058652B
REYQ72PBYD / REYQ96PBYD / REYQ120PBYD
4 Installation of Outdoor Units
EDUS391004-N Center of Gravity
4D060193C
4D060194C
1.2 208/230V
REMQ72PBTJ
REMQ96PBTJ / REMQ120PBTJ
Installation of Outdoor Units 5
Center of Gravity EDUS391004-N
4D070509
4D070510
RXYQ72PBTJ
RXYQ96PBTJ / RXYQ120PBTJ
6 Installation of Outdoor Units
EDUS391004-N Center of Gravity
4D060196A
4D060195B
RXYQ144PBTJ / REYQ144PBTJ
REYQ72PBTJ / REYQ96PBTJ / REYQ120PBTJ
Installation of Outdoor Units 7
Foundation Drawing EDUS391004-N
3D058655B
2. Foundation Drawing
460V
RXYQ72PBYD / RXYQ96PBYD / RXYQ120PBYD
REYQ72PBYD / REYQ96PBYD / REYQ120PBYD
REMQ72PBYD / REMQ96PBYD / REMQ120PBYD
208/230V
RXYQ72PBTJ / RXYQ96PBTJ / RXYQ120PBTJ / RXYQ144PBTJ
REYQ72PBTJ / REYQ96PBTJ / REYQ120PBTJ / REYQ144PBTJ
REMQ72PBTJ / REMQ96PBTJ / REMQ120PBTJ
8 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
3. REFNET Pipe System
3.1 Layout Example
3.1.1 Heat Pump System
Use of the particular branch fitting appropriate to each individual unit type not only permits the pipes to be laid
with ease but also increases the reliability of the system as a whole.
Type of
fitting
Line branch fitting
(Pipes containing REFNET joints only)
Sample systems
headers only)
Header branch fitting
(Piping consists of REFNET
and joints)
Mixed branch fittings
(Piping including both headers
Units can be added by connecting them directly to the REFNET header or REFNET joint. Further branches cannot be
included in the system below the REFNET header branch.
NOTES:
1. When the capacity ratio of the indoor system to the outdoor unit is more than 100% and when all the indoor units are in operation at
the same time, the rated capacity of each unit will be somewhat reduced.
2. Special purpose REFNET pipe components must be used for all the pipe work. For further details concerning choosing components,
see VRVIII REFNET and Piping Selection Rules.
3. The Daikin REFNET kits are supplied with insulation intended to fit over the main body of the REFNET joint after installation of the
REFNET kit is complete.
4. IMPORTANT: In applications where the REFNET kits are installed in an environment requiring fire-rated materials to be used, it is
necessary for the installer to obtain from a third party supplier and to utilize, for insulation, fire-rated materials that meet all
applicable building codes and other requirements. The factory-provided insulation that is supplied with the REFNET kit should be
discarded in a manner meeting all applicatble laws.
Installation of Outdoor Units 9
REFNET Pipe System EDUS391004-N
3.1.2 Heat Recovery System
Use of the particular branch fitting appropriate to each individual unit type not only permits the pipes to be laid
with ease but also increases the reliability of the system as a whole.
Type of
fitting
Distribution by REFNET jointsDistribution by REFNET header
Sample systems
and headers
Combination of REFNET joints
Units can be added by connecting them directly to the REFNET header or REFNET joint. Further branches cannot be
included in the system below the REFNET header branch.
NOTES:
1. When the capacity ratio of the indoor system to the outdoor unit is more than 100% and when all the indoor units are in operation at
the same time, the rated capacity of each unit will be somewhat reduced.
2. Special purpose REFNET pipe components must be used for all the pipe work. For further details concerning choosing components,
see VRVIII REFNET and Piping Selection Rules.
3. The Daikin REFNET kits are supplied with insulation intended to fit over the main body of the REFNET joint after installation of the
REFNET kit is complete.
4. IMPORTANT: In applications where the REFNET kits are installed in an environment requiring fire-rated materials to be used, it is
necessary for the installer to obtain from a third party supplier and to utilize, for insulation, fire-rated materials that meet all
applicable building codes and other requirements. The factory-provided insulation that is supplied with the REFNET kit should be
discarded in a manner meeting all applicatble laws.
10 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
3.2 Field Refrigerant Piping
3.2.1 Heat Pump Series
1. The following materials should be used for all refrigerant piping.
Materials: Deoxidized phosphorous seamless copper pipe or equivalent
2. The tips for insulation
Both Gas, Liquid piping must be insulated.
Materials: Glass fiber or heat resistant polyethylene foam.
Thickness: 1/2 inch or more
Insulation of both liquid and gas pipe
3.2.2 Heat Recovery Series
Suction, Discharge Gas piping, liquid piping must be insulated.
Example of thermal insulation work.
3 piping section (between outdoor unit and Branch Selector
unit)
2 piping section (between Branch Selector unit and indoor
unit)
Installation of Outdoor Units 11
REFNET Pipe System EDUS391004-N
3.3 REFNET Joints and Headers
3.3.1 REFNET Joints
For gas and liquid branch pipes
Make sure that all branch pipes are fitted such that they branch either horizontally or vertically.
When the size of the selected field piping is different from that of branch pipe then the connecting section should be
cut with a pipe cutter as shown in the figure below.
When you are cutting an inlet or outlet pipe with a pipe cutter make sure that you make the cut in the center of the
connection area.
Branch pipes must be insulated in accordance with the handbook which comes with each kit.
3.3.2 REFNET Header
12 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes
available for connection then cap pipes should be fitted to the surplus branches.
When the size of the selected field piping is different from that of branch pipe then the connecting section should be
cut with a pipe cutter as shown in the figure below.
When field piping is connected to the B section of the inlet/outlet pipe on the outdoor unit side of the liquid pipe
header.
Cut the B section with a pipe cutter as shown below and connect it to the A section.
Connect the flared section of the field pipe to the B section.
Fit the branch pipe so that the branch lies in a horizontal plane.
The branch pipe must be insulated in accordance with the instruction manual which comes with each kit.
1.Use the insulator included in the kit to insulate the header.
2. Joints between insulators included in the kit and those already applied to the field piping should be sealed with the tape which is also
included in each kit.
3. Any cap pipes should also be insulated using the insulator provided with each kit and then taped as described above.
Installation of Outdoor Units 13
REFNET Pipe System EDUS391004-N
Gas Side
1/2
5/8
3/4
5/8
5/8
1/2
3/8
3/8
3/8
9-13/16
11-7/16
(1-9/16)
1/4
1/4
3-5/32
1/2
3-5/32
(1-21/32)
Insulation
Insulation
Liquid Side
D3K03622D
13-5/16
7/8
3/4
5/8 3/4
3-15/16
3-5/32
14-31/32
(unit: in)
Gas Side
Insulation
Insulation
Liquid Side
D3K03623B
7/8
3/4
3/4
5/8
1/2
3/8
3/8
3/8
10-1/4
11-13/16
3-5/32
1/4
(1-9/16)
1/4
5/8
3-5/32
1/2
(1-1/2)
12-11/16
1
7/8
3/4
7/8
3-15/16
3-15/16
14-3/16
Liquid Side
Gas Side
Insulation
Insulation
D3K04887A
4. REFNET Pipe System
4.1 REFNET Joint (Branch Kit)
RXYQ72~360PBYD (460V)
RXYQ72~360PBTJ (208/230V)
KHRP26A22T
KHRP26A33T
KHRP26M72TU
14 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
LIQUID SIDE JOINT
GAS SIDE JOINT
I. D. 1/2
24-3/4
I. D. 3/4
O. D. 1-3/8
THERMAL INSULATION
3-9/16
I. D. 1/2
I. D. 1/4
THERMAL INSULATION
I. D. 7/8
O. D. 5/8
I. D. 3/4
1-15/16
(1-1/2)
14-1/8
3-1/8
12-6/8
I. D. 3/8
I. D. 1-1/8
20-3/4 (3-15/16)
4-3/4
I. D. 5/8
4-3/4
O. D. 7/8
I. D. 1-1/8
I. D. 1-3/8
I. D. 5/8
O. D. 1/2
I. D. 1-3/8
I. D. 7/8
O. D. 3/8
I. D. 5/8
3-15/16
O. D. 7/8
2-3/8
O. D. 5/8
3-1/8
I. D. 1/2
3-1/8
D3K05572A
KHRP26M73TU
Installation of Outdoor Units 15
REFNET Pipe System EDUS391004-N
D3K03626B
(unit: in)
Suction gas side
Discharge gas side
Liquid side
Insulation
Insulation
Insulation
1/2
1/2
5/8
3/4
13-5/16
14-31/32
1-21/32
1-9/16
1-9/16
1/2
5/8
5/8
5/8
3/4
3-5/32
1/2
3-5/32
3-5/32
3-5/32
3/8
1/2
2-3/8
5/8
5/8
3/8
3/8
3/8
3/8
1/4
1/4
3/8
11-13/16
13-3/8
1/2
1/2
11-7/16
9-13/16
D3K03627B
3/4
Suction gas side
Discharge gas side
Liquid side
Insulation
Insulation
Insulation
1
3-15/16
12-11/16
14-3/16
14-7/16
10-1/4
11-13/14
16-1/16
1-21/32
1-9/16
7/8
7/8
5/8
5/8
5/8
3/4
3/4
1/2
1-1/2
3/4
7/8
5/8
5/8
3-15/16
1/2
1/2
1/2
3/8
3/8
1/4
1/4
3/8
3/4
3/8
3-5/32
3-5/32
3-5/32
REYQ72~336PBYD (460V)
REYQ72~336PBTJ (208/230V)
KHRP25A22T
KHRP25A33T
16 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
D3K04888B
Liquid sideDischarge gas side
Insulation
Insulation
Insulation
Suction gas side
17-5/8
13-3/8 (4-1/4)
I. D. φ1-1/4
I. D. φ1-1/8
I. D. φ1
I. D. φ1
I. D. φ1/2
3-1/8
I. D. φ5/8
I. D. φ3/4
O. D. φ1
I. D. φ1-1/8
O. D. φ1
3-15/16
O. D. φ3/4
I. D. φ7/8
3-15/16
3-15/16 7-3/8
I. D. φ7/8
O. D. φ1
I. D. φ5/8
I. D. φ7/8
I. D. φ3/4
I. D. φ3/4
I. D. φ5/8
12-11/16
14-3/16
I. D. φ5/8
I. D. φ1/2
3-1/8
(1-1/2)
O. D. φ5/8
I. D. φ1/2
3-1/8
I. D. φ3/8
O. D. φ1/2
2-3/8
I. D. φ3/4
O. D. φ5/8
3-1/8
13-1/16
11-7/16 (1-5/8)
I. D. φ1/2
I. D. φ5/8
I. D. φ3/8
I. D. φ1/2
I. D. φ1/4
I. D. φ3/8
I. D. φ1/2
3-1/8
O. D. φ1/2
I. D. φ5/8
3-1/8
DISCHARGE GAS SIDE JOINT
LIQUID SIDE JOINT
SUCTION GAS SIDE JOINT
21-3/8
O. D. 5/8
3-15/16
O. D. 3/8
I. D. 1/2
19-1/4
3-1/83-15/16
O. D. 7/8
I. D. 3/8
I. D. 7/8
I. D. 1-3/8
I. D. 3/4
(3-15/16)
3-9/16
O. D. 5/8
I. D. 5/8
I. D. 3/4
I. D. 1-1/8
24-3/4
THERMAL INSULATION
I. D. 1-1/8
I. D. 1-1/8
O. D. 1
2-3/8
4-3/4
I. D. 1/2
I. D. 3/4
I. D. 3/4
I. D. 7/8
2-3/8
20-3/4
(2-3/16)
3-1/8
12-6/8
14-1/8
(1-1/2)
O. D. 1/2
I. D. 5/8
I. D. 3/8
I. D. 1-3/8
O. D. 1/2
I. D. 1/2
I. D. 1-1/8
I. D. 1
I. D. 1/2
I. D. 1/4
I. D. 3/4
THERMAL INSULATION
1-15/16
I. D. 5/8
5-1/8
O. D. 7/8
O. D. 3/4
3-9/16
THERMAL INSULATION
O. D. 1-3/8
4-3/4
I. D. 5/8
3-1/8
D3K05573A
KHRP25M72TU
KHRP25M73TU
Installation of Outdoor Units 17
REFNET Pipe System EDUS391004-N
D3K03629C
(unit: in)
Gas Side
Liquid Side
Insulation
I. D. φ 3/4
I. D. φ 5/8
3-5/32
Insulation
3 - I. D. φ 1/2
I. D. φ 7/8
O. D. φ 3/4
I. D. φ 1/2
O. D. φ 1/2
I. D. φ 5/8
I. D. φ 5 / 8
5-29/32
14-31/32
3-15/16
2-3/8
3-5/32
4-23/32
2 × 2-3/8 = 4-23/32
I. D. φ 3/8
2-3/8
3 - I. D. φ 1/4
I. D. φ 1/4
I. D. φ 3/8
3-21/32
2 × 2-3/8 = 4-23/32
16-5/32
2-3/85-1/8
3-1/32
1-9/16
O. D. φ 1/4
I. D. φ 3/8
× 2
× 2
D3K03630C
Gas Side
Liquid Side
Insulation
Insulation
I. D. φ 3/4
I. D. φ 5/8
6-23/32
5-23/32
4-23/32 4-23/32
2 × 2-3/8 = 4-23/32
4-23 /3210-7/16
8-1/16
3-15/16
24-7/32
2 - I. D. φ 1/2
I. D. φ 1/2
O. D. φ 1/2
I. D. φ 5/8
I. D. φ 5/8
I. D. φ 1
O. D. φ 7/8
I. D. φ 5/8
I. D. φ 3/4
I. D.
φ
7/8
5 - I. D. φ 1/2
3-3/16
4-3/4
3-5/32
6 - I. D. φ 3/8
6 - I. D. φ 1/4
2 - I. D. φ 1/4
2-3/8
3-21/32
5-29/32
20-3/32 2-3/8
1-9/16
3-1/32
26-3/8
I. D. φ 1/2
I. D. φ 3/8
5 × 2-3/8 = 11-13/16
O. D. φ 1/4
I. D. φ 3/8
× 2
× 2
D3K03631C
Gas Side Liquid Side
Insulation
Insulation
I. D. φ 1-1/8
I. D. φ 1
I. D. φ 1-1/4
3 - I. D. φ 3/4
3 - I. D. φ 5/8
7-9/32
10-7/16
29-23/32
2 × 6-5/16 = 12-19/32
2 × 6-5/16 = 12-19/32 2-3/8 2-3/8
3 - I. D. φ 1/2
O. D. φ 1/2
I. D. φ 5/8
3-5/32
3 - I. D. φ 1/2
2 - I. D. φ 1/2
6 - I. D. φ 3/8
6 - I. D. φ 1/4
2 - I. D. φ 1/4
2-3/8
3-21/32
I. D. φ 3/4
O. D. φ 1/4
I. D. φ 5/8
O. D. φ 5/8
I. D. φ 3/8
1-9/16
3-5/32
I. D. φ 1/2
3-9/32
5-1/2
4-27/32
6-13/16
3 - I. D. φ 5/8
5 × 2-3/8 = 11-13/16
14-3/16 2-3/8
25-31/32
3-1/32
× 2
× 2
4.2 REFNET Header (Branch Kit)
RXYQ72~360PBYD (460V)
RXYQ72~360PBTJ (208/230V)
KHRP26M22H
KHRP26M33H
KHRP26M72H
18 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
D3K05574
I. D. 1-3/8
6-1/2 5×3-1/8=15-3/4
Thermal Insulation
Thermal Insulation
30-1/2
I. D. 3/4
I. D. 5/8
3-1/8 3-1/8
3-11/16
5-5/16
I. D. 5/8
7-1/16
I. D. 3/4
I. D. 5/8
I. D. 7/8
O. D. 3/4
O. D. 3/8
I. D. 1/4
1-15/16
O. D. 5/8
I. D. 1/2
3-1/8
× 6
× 6
7×2-3/8=16-1/2
27-15/16
32-3/8
8 - I. D. 3/8
3-15/16
Gas Side Header Liquid Side Header
KHRP26M73HU
Installation of Outdoor Units 19
REFNET Pipe System EDUS391004-N
D3K03633D
I. D. φ 3/4
I. D. φ 5/8
6-23/32
5-23/32
10-7/16
4-23 /32
4-23/32
24-7/32
4-23/32
8-1/16
2 × 2-3/8 = 4-23/32
I. D. φ 1/2
I. D. φ 5/8
I. D. φ 3 /4
I. D. φ 5/8
I. D.
φ
7 /8
2 - I. D. φ 1/2
5 - I. D. φ 1/2
O. D. φ 1/2
I. D. φ 5/8
3-5/32
3-3/16
4-3/4
I. D. φ 5/8
I. D. φ 5/8
I. D. φ 1/2
I. D. φ 3/8
O. D. φ 5/8
3-5/32
I. D. φ 3/4
I. D. φ 3/8
I. D. φ 1/2
6 - I. D. φ 3/8
3-3/16
4-3/4
6-23/32
I. D. φ 3/8
I. D. φ 3/4
I. D. φ 3/8
7-3/32
25-19/32
I. D. φ 1/2
I. D. φ 1/2
7 × 2-3/8 = 16-17/32
6 - I. D. φ 1/4
5-29/32
2 - I. D. φ 1/4
20-3/32 2-3/8
2-3/8
3-21/32
1-9/16
3-1/32
26-3/8
O. D. φ 1/4
I. D. φ 3/8
5 × 2-3/8 = 11-13/16
× 5
× 2
3-17/32
O. D. φ 3/8
I. D. φ 1/2
× 3
(unit:in)
Suction gas side
HP/LP gas side
Insulation
Insulation
Insulation
Liquid side
D3K03634D
I. D. φ 1-1/4
7-9/32
10-7/16
29-23/32
I. D.
φ
1-1/8
I. D.
φ
1
2 × 6-5/16 = 12-19/32
2 × 6-5/16 = 12-19/32
2-3/8 2-3/8
3 - I. D. φ 1/2
3 - I. D. φ 1/2
3 - I. D. φ 5/8
3 - I. D. φ 3/4
2 - I. D. φ 1/2
O. D. φ 1/2
I. D. φ 5/8
3-5/32
3-9/32
4-27/32
6-13/16
I. D. φ 1/2
8-19/32
27-3/32
I. D. φ 3/8
I. D. φ 3/8
I. D. φ 3/8
5-1/2
25-31/32
2-3/8
3-1/32
14-3/16
O. D. φ 3/8
I. D. φ 5/8
I. D.
φ
1/2
O. D. φ 5/8
3-17/32
3-5/32
I. D. φ 1/2
I. D. φ 3/4
3-7/32
4-27/32
6-13/16
I. D. φ 5/8
I. D. φ 3/4
I. D. φ 7/8
I. D. φ 1
7 × 2-3/8 = 16-17/32
I. D. φ 1/2
5 × 2-3/8 = 11-13/16
6 - I. D. φ 3/8
6 - I. D. φ 1/4
2 - I. D. φ 1/4
O. D. φ 1/4
2-3/8
3-21/32
1-9/16
I. D. φ 3/8
3 - I. D. φ 5/8
× 2
× 2
× 3
× 2
3-5/32
I. D. φ 3/4
O. D. φ 5/8
3-5/32
I. D. φ 5/8
O. D. φ 1/2
Suction gas side
HP/LP gas side
Insulation
Insulation
Insulation
Liquid side
REYQ72~336PBYD (460V)
REYQ72~336PBTJ (208/230V)
KHRP25M33H
KHRP25M72H
20 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
SUCTION GAS SIDE HEADER
DISCHARGE GAS SIDE HEADER
× 6
× 6
× 6
× 6
LIQUID SIDE HEADER
O. D. 3/4
7 × 2-3/8 = 16-1/2
8-9/16
I. D. 5/8
O. D. 5/8
I. D. 5/8
30-15/16
6-1/2
3
I. D. 1/4
30-1/2
3-1/4
I. D. 1/2
27-15/16
15-3/4
1-15/16
I. D. 1-1/4
3-1/8
I. D. 1-3/8
8-I. D. 3/8
7-1/16
I. D. 3/4
5 × 3-1/8 = 15-3/4
I. D. 5/8
2-3/8
5-5/16
THERMAL INSULATION
O. D. 3/8
4-13/16
I. D. 1/2
I. D. 1-1/8
I. D. 7/8
I. D. 1/2
THERMAL INSULATION
O. D. 5/8
THERMAL INSULATION
I. D. 3/4
2-3/8
2-3/8
O. D. 1/2
3-15/16
3-1/8
I. D. 3/4
3-1/8
3-11/16
I. D. 1
I. D. 3/8
2-3/8
3-1/8
I. D. 5/8
D3K05575
KHRP25M73HU
Installation of Outdoor Units 21
REFNET Pipe System EDUS391004-N
to Outdoor Unit A
GAS-SIDE JOINT + GAS-SIDE REDUCER (1)
1-3/8
1/16
5-1/16
Gas-Side Reducer
I. D. φ 3/4
I. D. φ 7/8
I. D. φ 1
I. D. φ 1-1/8
3/8
24-7/16
Local Brazing
1-9/16
24-15/16
30˚
1-15/16
Caution Label
30˚
1-15/16
1-9/16
7-7/8
2-5/8
Gas-Side Joint
9-1/16
3-1/16
23-1/16
1-3/8
9-7/16
6-1/2
3
6-7/16
11-3/4
27-15/16
4-7/16
to Outdoor
Unit B
I. D. φ 3/4
I. D. φ 7/8
I. D. φ 1-1/8
I. D. φ 1
INSULATION MATERIAL
FOR GAS-SIDE JOINT
I. D. φ 1-1/8
I. D. φ 1-1/4
to Indoor
Unit
4-3/16
4-3/4
GAS-SIDE REDUCER (2) (φ 1-1/4)
I. D. φ 1-1/2
to Indoor Unit
Outdoor Unit A
Gas-Side Joint
Layout Drawing (Upper-Side)
Outdoor Unit B
Elbow
(Field Supplied Parts)
ARROW VIEW A
Ground
ARROW VIEW B
Ground
×
View 2 ×
Caution Label
B
HORIZON
Caution Label
View 1
A
±15˚
or Less
View 3
Straight Length
19-11/16in or more
(Length 4-3/4in or More)
Local Piping
GAS-SIDE JOINT : 1
LIQUID-SIDE JOINT : 1
GAS-SIDE REDUCER (1) : 1
GAS-SIDE REDUCER (2) : 1
GAS-SIDE REDUCER (3) : 1
GAS-SIDE REDUCER (7) : 1
GAS-SIDE REDUCER (9) : 1
LIQUID-SIDE REDUCER (1) : 1
LIQUID-SIDE REDUCER (3) : 1
LIQUID-SIDE REDUCER (5) : 1
INSULATION MATERIAL FOR GAS-SIDE JOINT : 1
INSULATION MATERIAL FOR LIQUID-SIDE JOINT : 1
INSULATION MATERIAL FOR GAS-SIDE PIPE : 1
INSULATION MATERIAL FOR LIQUID-SIDE PIPE : 1
INSTALLATION MANUAL
GAS-SIDE REDUCER (3) (φ 1)
I. D. φ 1-1/8
I. D. φ 1
I. D. φ 7/8
I. D. φ 3/4
NOTE)
1. "- - - -" in the figure show field supply piping.
2. About size of connection pipe refer the "engineering data of VRV III".
3. In case of install this kit observe follow conditions.
· Do not tilt the joint more than ±15˚.
Install the joint horizontally so that the caution label attached to joint
comes to the top.
· Do not install the joint vertically why it may cause the malfunction of
outdoor unit.
· Make sure the piping up to the joint is straight for more than 19-11/16in.
Do not bend the field piping within this range. If a straight field piping
more than 4-3/4in is connected, more than 19-11/16in of straight section
can be ensured.
Accessory
3D060136
5/8
Local Brazing
4-7/16
LIQUID-SIDE JOINT + LIQUID-SIDE REDUCER (1)
10
11-3/16
Liquid-Side
Joint
12-7/16
8-13/16
11-5/8
Caution
Label
3-1/4
Liquid-Side
Reducer (1)
4-3/4
INSULATION MATERIAL
FOR LIQUID-SIDE JOINT
9/16
to Outdoor
Unit A
to Outdoor
Unit B
to Indoor Unit
I. D. φ 3/8
I. D. φ 3/8
I. D. φ 1/2
I. D. φ 7/8
I. D. φ 3/4
I. D. φ 5/8
I. D. φ 1/2
to Indoor Unit
Liquid-Side Joint
Layout Drawing (Upper-Side)
A
HORIZON
Caution Label
View 1
±15˚
or Less
ARROW VIEW A
Ground
View 2 ×
Caution Label
B
ARROW VIEW B
Ground
×
Straight Length
19-11/16in or more
View 3
(Length 4-3/4in or More)
Local Piping
NOTE) 1. "- - - -" in the figure show field supply piping.
2. About size of connection pipe refer the "engineering data of VRV III".
3. In case of install this kit observe follow conditions.
· Do not tilt the joint more than ±15˚.
Install the joint horizontally so that the caution label attached to joint comes to the top.
· Do not install the joint vertically why it may cause the malfunction of outdoor unit.
· Make sure the piping up to the joint is straight for more than 19-11/16in. Do not bend
the field piping within this range.
If a straight field piping more than 4-3/4in is connected, more than 19-11/16in of
straight section can be ensured.
GAS-SIDE JOINT : 1
LIQUID-SIDE JOINT : 1
GAS-SIDE REDUCER (1) : 1
GAS-SIDE REDUCER (2) : 1
GAS-SIDE REDUCER (3) : 1
GAS-SIDE REDUCER (7) : 1
GAS-SIDE REDUCER (9) : 1
LIQUID-SIDE REDUCER (1) : 1
LIQUID-SIDE REDUCER (3) : 1
LIQUID-SIDE REDUCER (5) : 1
INSULATION MATERIAL FOR GAS-SIDE JOINT : 1
INSULATION MATERIAL FOR LIQUID-SIDE JOINT : 1
INSULATION MATERIAL FOR GAS-SIDE PIPE : 1
INSULATION MATERIAL FOR LIQUID-SIDE PIPE : 1
INSTALLATION MANUAL
Accessory
Outdoor Unit BOutdoor Unit A
3D060135
4.3 Outdoor Unit Multi Connection Piping Kit
RXYQ144~240PBYD (460V)
RXYQ168~240PBTJ (208/230V)
BHFP22P100U
22 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 23
1P218719
REFNET Pipe System EDUS391004-N
24 Installation of Outdoor Units
1P218720
EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 25
1P218720
REFNET Pipe System EDUS391004-N
3D071077
3D071076
RXYQ264~360PBYD (460V)
RXYQ264~360PBTJ (208/230V)
BHFP22P151U
26 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
1P280278A
Installation of Outdoor Units 27
REFNET Pipe System EDUS391004-N
1P280278A
28 Installation of Outdoor Units
EDUS391004-N REFNET Pipe System
1P280279
Installation of Outdoor Units 29
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