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1. Confirming the Package Contents
The following items are included with the Twinning Kit (CMY-R100XLCBK). 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 field-supplied pipes do not fit the parts in the kit, use the accessory piping parts listed below.
(1) Package contents
1 Low-pressure
2 High-pressure
Model
twinning kit
twinning pipe
CMY-R100XLCBK
1
1
0 OD31.75 [1-1/4]
a OD22.2 [7/8]
Model
-ID28.58 [1-1/8]
-ID19.05 [3/4]
CMY-R100XLCBK
1
1
(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
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 field-supplied pipes 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.)
Package unit name
Outdoor unit 1
Component unit name
Outdoor unit 2
Outdoor Twinning Kit
High-pressure
BC controller ~ Twinning pipe
Low-pressure
A0
B0
C0
P216
P120
P96
P240
P120
P120
PURY-**
CMY-R100XLCBK
P264
P144
P120
P288
P144
P144
5 Elbow pipe
3 Fixing screw
4 Cable tie
ø28.58 [1-1/8]
1
2
1
b OD19.05 [3/4]
c OD22.2 [7/8]
d OD28.58 [1-1/8]
-ID22.2 [7/8]
-ID28.58 [1-1/8]
-ID22.2 [7/8]
3
1
1
A0
B0
C0
D0
Twinning pipe ~ Outdoor unit
A
E0
B
F0
(Unit: mm [in])
D0
E0
F0
(*)
ø28.58
[1-1/8]
ø28.58
[1-1/8]
ø34.93
(*)
PURY-**
[1-3/8]
2
7 High-pressure
8 High-pressure
6 Elbow pipe
pipe (for routing
pipe (for routing
ø31.75 [1-1/4]
through the bottom)
through the front)
1
1
f Installation
e OD31.75 [1-1/4]
g Insulation cover
Manual
-ID34.93 [1-3/8]
(this booklet)
1
1
Outdoor unit 1
Outdoor unit 2
Twinning kit
(Low pressure)
F
D
C
E
High-pressure
Unit model
C or D
A1
A2
B1
B2
C1
C2
(Unit: mm [in])
A1
B1
C1
A2
B2
C2
A3
B3
C3
P96
P120
P144
(*)
ø19.05
ø19.05
ø22.2
[3/4]
[3/4]
[7/8]
(*)
ø22.2
ø28.58
ø28.58
[7/8]
[1-1/8]
[1-1/8]
9 Pipe cover
1
1
1
A
To BC controller
Twinning pipe (High pressure)
B
To BC controller
Low-pressure
E or F
A3
B3
C3
See reverse.
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