9-4-2. Example of pipe connection between an outdoor unit and BC controller, and between a BC
controller and indoor unit (R2 system)
HP72 to HP120
Unit 1
Ⓐ
Ⓙ
A
Ⓘ
A
Ⓕ
a
b
a
Ⓝ
Ⓞ
Ⓔ
Ⓓ
HP144 to HP240
Unit 1
Unit 2
Ⓐ
Ⓐ
A1
A2
A2
A1
Ⓗ
Ⓙ
A
Ⓘ
a
Ⓝ
Ⓞ
Ⓓ
*1
j
Ⓑ Ⓒ
l
i
k
Ⓔ
* Contact your dealer for pipe connection examples when connecting CMB-P**-NU-G1, CMB-P**-NU-GA1, CMB-P**-NU-HA1, CMB-P**-NU-GB1, or CMB-P**-NU-HB1.
WT09112X02
Ⓑ
b
Ⓖ
B
B
c
c
Ⓓ
*1
Ⓖ
A
Ⓛ
C
Ⓚ
C
Ⓜ
Ⓑ
C
Ⓕ
b
a
b
Ⓖ
B
B
c
c
Ⓔ
Ⓓ
*1
Ⓓ
d
d
Ⓓ
e
e
Ⓒ
Ⓖ
D D
Ⓖ
D
E
E
E
F
F
F
Ⓒ
f
d
f
d
Ⓓ
Ⓓ
GB-18
Ⓐ
Outdoor unit
Ⓑ
BC controller (Main)
BC controller (Sub)
Ⓒ
Indoor unit (Total capacity of downstream indoor
Ⓓ
units: 06 to 30)
Indoor unit (Total capacity of downstream indoor
Ⓔ
units: 36 to 96)
Ⓕ
Joint Pipe Kit
2-Branch Joint Pipe
Ⓖ
Outdoor unit twinning kit
Ⓗ
Ⓘ
High-pressure pipe (A, A
Ⓙ
Low-pressure pipe (A, A
1
Ⓚ
High-pressure pipe (C, D, E, F, G, H, I)
Low-pressure pipe (C, D, E, F, G, H, I)
Ⓛ
Liquid pipe (C, D, E, F, G, H, I)
Ⓜ
Ⓝ
Liquid pipe (a, b, c, d, e, f, g, h)
Ⓞ
Gas pipe (a, b, c, d, e, f, g, h)
Ⓖ
I
G
G
I
I
G
H
H
H
Ⓒ
g
g
Ⓓ
, A
)
1
2
, A
)
2
Ⓒ
h
h
Ⓓ