1. Confirming the Package Contents
The following items are included with the Twinning Kit (CMY-R100VBK, CMY-R200VBK). Verify that all items are present before
starting installation.
❈ Always use the twinning pipes included in the kit when preparing the twinning kit.
If the pipes field-supplied do not fit the parts in the kit, use the accessory piping parts listed below.
(1) Package contents
(2) List of field-supplied parts
· Refrigerant pipes other than the ones provided in the kit
· Heat-resistant insulation material (for field-supplied refrigerant pipes)
· Insulation cover tape
Package unit name
Outdoor Twinning Kit
Component unit name
Outdoor unit 1
Outdoor unit 2
BC controller ~ Twinning pipe
High-pressure
Low-pressure
A
B
A0
B0
C0
D0
E0
F0
PURY-＊＊Y(S)HM
PURY-＊＊Y(S)HMU
PURY-＊＊T(S)HMU
A0
P450
P500
P550
P600
P650
P700
P750
P800
EP400
EP450
EP500
EP550
EP600
P144
P168
P192
P216
P240
P144
P168
P192
P216
P240
B0
P250
P250
P300
P300
P350
P400
P400
P400
EP200
P250
EP300
EP300
EP300
P72
P96
P96
P120
P120
P72
P96
P96
P120
P120
C0
P200
P250
P250
P300
P300
P300
P350
P400
EP200
EP200
EP200
P250
EP300
P72
P72
P96
P96
P120
P72
P72
P96
P96
P120
D0
CMY-R100VBK
CMY-R200VBK
CMY-R100VBK
CMY-R100VBK
CMY-R100VBK
F0
Twinning pipe ~ Outdoor unit
Low-pressure
E or F
A3
B3
C3
D3
E3
PURY-＊＊YHM
PURY-＊＊YHMU
PURY-＊＊THMU
A1
A2
A3
P200
Ø15.88
(
*
)
Ø19.05
(
*
)
EP200
Ø15.88
(
*
)
Ø19.05
(
*
)
P72
Ø15.88
(
*
)
Ø19.05
(
*
)
P72
Ø15.88
(
*
)
Ø19.05
(
*
)
B1
B2
B3
P250
Ø19.05
Ø22.2
EP300
Ø19.05
Ø22.2
P96
Ø19.05
Ø22.2
P96
Ø19.05
Ø22.2
C1
C2
C3
P300
Ø19.05
Ø22.2
(
*
A)
-
-
-
P120
Ø19.05
Ø28.58
P120
Ø19.05
Ø28.58
D1
D2
D3
P350
Ø19.05
Ø28.58
-
-
-
-
-
-
-
-
-
E1
E2
E3
P400
Ø22.2
(
*
)
Ø28.58
-
-
-
-
-
-
-
-
-
-
Unit model
A1
B1
C1
D1
E1
High-pressure
C or D
A2
B2
C2
D2
E2
(
Unit : mm
[
in
] )
(
Unit : mm
[
in
] )
*
A : In case of CMY-R200VBK
Ø34.93
(
*
)
[1-3/8]
E0
Ø22.2
[7/8]
Ø22.2
[7/8]
Ø22.2
[7/8]
Ø22.2
[7/8]
Ø28.58
(
*
)
[1-1/8]
Ø28.58
[1-1/8]
Ø28.58
[1-1/8]
Ø28.58
[1-1/8]
Ø28.58
[1-1/8]
Ø28.58
(
*
)
[1-1/8]
Ø28.58
(
*
)
[1-1/8]
Ø28.58
(
*
)
[1-1/8]
Ø28.58
(
*
)
[1-1/8]
[5/8]
[3/4]
[5/8]
[3/4]
[5/8]
[3/4]
[5/8]
[3/4]
[3/4]
[7/8]
[3/4]
[7/8]
[3/4]
[7/8]
[3/4]
[7/8]
[3/4]
[7/8]
[3/4]
[1-1/8]
[3/4]
[1-1/8]
[3/4]
[1-1/8]
[7/8]
[1-1/8]
2. Selecting the Correct Size Refrigerant Pipes and Using the Twinning Kit
(1) Pipe size
1 Field-supply the pipes to be connected to the kit.
2 Choose the correct size pipe using the table below. Connect the field-
supplied pipe to the twinning kit for the sizes in the table that are marked
with an asterisk (*).
3 If the pipe was cut with a pipe cutter, remove the burrs and eliminate
foreign materials before connecting.
❈
On the low-pressure side, the twinning kit connects to the pipes field-
supplied inside the outdoor unit.
The distributor on the low-pressure side must be placed in the outdoor unit
that has a larger capacity index of the two, regardless of the relative
positions of the outdoor units or their addresses.
If the distributor is placed in the outdoor unit that has a smaller capacity,
refrigerant will not be properly distributed and compressor failure may result.
( If outdoor units that have the same capacity are used in combination, the
distributor can be placed in either outdoor unit.)
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