Daikin VRV III REMQ72PBYD Dimension Guide

EDUS 391004 - N
AMERICASAMERICAS
Installation

EDUS391004-N
Installation of Outdoor Units 1
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

Center of Gravity EDUS391004-N
2Installation of Outdoor Units
1. Center of Gravity
1.1 460V
REMQ72PBYD
REMQ96PBYD / REMQ120PBYD
4D058650B
4D058651B

EDUS391004-N Center of Gravity
Installation of Outdoor Units 3
RXYQ72PBYD
RXYQ96PBYD / RXYQ120PBYD
4D070791
4D070790

Center of Gravity EDUS391004-N
4Installation of Outdoor Units
REYQ72PBYD / REYQ96PBYD / REYQ120PBYD
4D058652B

EDUS391004-N Center of Gravity
Installation of Outdoor Units 5
1.2 208/230V
REMQ72PBTJ
REMQ96PBTJ / REMQ120PBTJ
4D060193C
4D060194C

Center of Gravity EDUS391004-N
6Installation of Outdoor Units
RXYQ72PBTJ
RXYQ96PBTJ / RXYQ120PBTJ
4D070509
4D070510

EDUS391004-N Center of Gravity
Installation of Outdoor Units 7
RXYQ144PBTJ / REYQ144PBTJ
REYQ72PBTJ / REYQ96PBTJ / REYQ120PBTJ
4D060196A
4D060195B

Foundation Drawing EDUS391004-N
8Installation of Outdoor Units
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
3D058655B

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 9
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.
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.
Typeof
fitting
Sample systems
Line branch fitting
(Pipes containing REFNET joints only)
Header branch fitting
(Piping consists of REFNET
headers only)
Mixed branch fittings
(Piping including both headers
and joints)

REFNET Pipe System EDUS391004-N
10 Installation of Outdoor Units
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.
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.
Typeof
fitting
Sample systems
Distribution by REFNET jointsDistribution by REFNET header
Combination of REFNET joints
and headers

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 11
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
3.2.2 Heat Recovery Series
Suction, Discharge Gas piping, liquid piping must be insulated.
Example of thermal insulation work.
Insulation of both liquid and gas pipe
3 piping section (between outdoor unit and Branch Selector
unit)
2 piping section (between Branch Selector unit and indoor
unit)

REFNET Pipe System EDUS391004-N
12 Installation of Outdoor Units
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

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 13
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.

REFNET Pipe System EDUS391004-N
14 Installation of Outdoor Units
4. REFNET Pipe System
4.1 REFNET Joint (Branch Kit)
RXYQ72~360PBYD (460V)
RXYQ72~360PBTJ (208/230V)
KHRP26A22T
KHRP26A33T
KHRP26M72TU
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
17/8 3/4 7/8
3-15/16 3-15/16
14-3/16
Liquid Side
Gas Side
Insulation Insulation
D3K04887A

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 15
KHRP26M73TU
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

REFNET Pipe System EDUS391004-N
16 Installation of Outdoor Units
REYQ72~336PBYD (460V)
REYQ72~336PBTJ (208/230V)
KHRP25A22T
KHRP25A33T
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

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 17
KHRP25M72TU
KHRP25M73TU
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. φ1I. 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

REFNET Pipe System EDUS391004-N
18 Installation of Outdoor Units
4.2 REFNET Header (Branch Kit)
RXYQ72~360PBYD (460V)
RXYQ72~360PBTJ (208/230V)
KHRP26M22H
KHRP26M33H
KHRP26M72H
D3K03629C
(unit: in)
Gas Side Liquid Side
Insulation
I. D. φ3/4
I. D. φ5/8
3-5/32
Insulation
3 - I. D. φ1/2
I. D. φ7/8
O. D. φ3/4
I. D. φ1/2
O. D. φ1/2
I. D. φ5/8
I. D. φ5 / 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. φ3/8
2-3/8
3 - I. D. φ1/4
I. D. φ1/4
I. D. φ3/8
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. φ1/4
I. D. φ3/8
× 2
× 2
D3K03630C
Gas Side Liquid Side
Insulation Insulation
I. D. φ3/4
I. D. φ5/8
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. φ1/2
I. D. φ1/2
O. D. φ1/2
I. D. φ5/8
I. D. φ5/8
I. D. φ1
O. D. φ7/8
I. D. φ5/8
I. D. φ3/4
I. D. φ7/8
5 - I. D. φ1/2
3-3/16
4-3/4
3-5/32
6 - I. D. φ3/8
6 - I. D. φ1/4 2 - I. D. φ1/4
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. φ1/2
I. D. φ3/8
5 × 2-3/8 = 11-13/16
O. D. φ1/4
I. D. φ3/8
× 2
× 2
D3K03631C
Gas Side Liquid Side
Insulation
Insulation
I. D. φ1-1/8
I. D. φ1
I. D. φ1-1/4
3 - I. D. φ3/4
3 - I. D. φ5/8
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. φ1/2
O. D. φ1/2
I. D. φ5/8
3-5/32
3 - I. D. φ1/2
2 - I. D. φ1/2 6 - I. D. φ3/8
6 - I. D. φ1/4 2 - I. D. φ1/4
2-3/8
3-21/32
I. D. φ3/4 O. D. φ1/4
I. D. φ5/8
O. D. φ5/8 I. D. φ3/8
1-9/16
3-5/32
I. D. φ1/2
3-9/32
5-1/2
4-27/32
6-13/16
3 - I. D. φ5/8
5 × 2-3/8 = 11-13/16
14-3/16 2-3/8
25-31/32
3-1/32
× 2 × 2

EDUS391004-N REFNET Pipe System
Installation of Outdoor Units 19
KHRP26M73HU
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