2
1. Confirming the Package Contents
The following items are included with the Twinning Kit (CMY-R100NCBK, CMY-R200NCBK, CMY-R300NCBK). 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.
Twinning a
Insulation cover
Twinning kit
Pipe b (Before the twinning)
Pipe c (After the twinning)
L-shape pipe d (After the twinning)
(1) Twinning pipes
Model
Section
Twinning a
Pipe b (Before the
twinning)
Pipe c (After the
twinning)
L-shape Pipe d
(After the twinning) Insulation cover Installation Manual
CMY-R100NCBK
High-pressure
15.88 [5/8] × 15.88 [5/8] × 19.05 [3/4]
-
-
-
Small
1 (This booklet)
Low-pressure
25.4 [1] × 25.4 [1] × 28.58 [1-1/8]
OD28.58 [1-1/8]-
ID28.58 [1-1/8]
OD25.4 [1]-
ID22.2 [7/8]
OD25.4 [1]-
ID22.2 [7/8]
Large
CMY-R200NCBK
High-pressure
19.05 [3/4] × 19.05 [3/4] × 22.2 [7/8]
-
-
-
Small
Low-pressure
25.4 [1] × 25.4 [1] × 28.58 [1-1/8]
OD28.58 [1-1/8]-
ID28.58 [1-1/8]
OD25.4 [1]-
ID22.2 [7/8]
OD25.4 [1]-
ID22.2 [7/8]
Large
CMY-R300NCBK
High-pressure
19.05 [3/4] × 19.05 [3/4] × 28.58 [1-1/8]
-
-
-
Small
Low-pressure
28.58 [1-1/8] × 28.58 [1-1/8]
× 31.75 [1-1/4]
OD31.75 [1-1/4]-
ID34.93 [1-3/8]
OD28.58 [1-1/8]-
ID28.58 [1-1/8]
OD28.58 [1-1/8]-
ID28.58 [1-1/8]
Large
(2) Accessory piping parts
Model
Section
Supplied pipe
CMY-R100NCBK
High-pressure
OD19.05 [3/4]-ID22.2 [7/8]
-
Low-pressure
OD22.2 [7/8]-ID19.05 [3/4] (2)
-
CMY-R200NCBK
High-pressure
-
-
Low-pressure
OD22.2 [7/8]-ID28.58 [1-1/8] (2)
OD28.58 [1-1/8]-ID34.93 [1-3/8]
CMY-R300NCBK
High-pressure
OD19.05 [3/4]-ID22.2 [7/8] (2)
-
Low-pressure
OD34.93 [1-3/8]-ID41.28 [1-5/8]
-
(3) 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
Select the correct size pipe referring to the Installation
manual of the unit model in use or the Databook.
3
If the pipe was cut with a pipe cutter, remove
the burrs and eliminate foreign materials before
connecting.
PURY-HP144 to HP240, (E)P192 to (E)P240
Set model
PURY-HP144
PURY-HP/(E)P192
PURY-(E)P216
PURY-HP/(E)P240
Set Unit
Unit 1
PURY-HP72
PURY-HP/(E)P96
PURY-(E)P120
PURY-HP/(E)P120
Unit 2
PURY-HP72
PURY-HP/(E)P96
PURY-(E)P96
PURY-HP/(E)P120
Twinning type
CMY-R100NCBK
CMY-R200NCBK
Twinning pipe - BC Controller
High-pressure
a
ø22.2 [7/8]
ø22.2 [7/8]*
Twinning pipe - BC Controller
Low-pressure
b
ø28.58 [1-1/8]
ø34.93 [1-3/8]
* When the high pressure piping length is 65 m (213 ft) or less, use ø22.2 (ø7/8) pipe.
When the high pressure piping length exceeds 65 m (213 ft), use ø22.2 (ø7/8) pipe until 65 m (213 ft), use ø28.58 (ø1-1/8) pipe for the part that exceeds 65 m (213 ft).
Twinning kit
Pipe b (Before the twinning)
Insulation cover
L-shape pipe d (After the twinning)
Twinning a
Pipe c (After the twinning)
Outdoor unit 2
Outdoor unit 1
To BC controller (Low pressure pipe)
To BC controller (High pressure pipe)
See reverse.
