Refrigerant Piping System; Refrigerant Pipe Connection - LG multi v Installation Manual

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
34

Refrigerant piping system

Refrigerant Pipe Connection

3 Outdoor Units
Example : 12 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Connection branch pipe between Outdoor units : ARCNB31
Ⓕ : Connection branch pipe between Outdoor units : ARCNB21
Ⓖ : Header
Ⓗ : HR Unit
2
H
3
h
■ Case 1 ("a")
: Maximum height is 15m(49ft) if you install with Y branch.
■ Case 2 ("b")
: Maximum height is 5m(16ft) in serial connection of HR units.
Slave 2
A3
Slave 1
A2 Master
A1
F3
F2
F1
E
E2
E1
1
D
a
D
b
C1
H1
c
D
"a"
d
C2
D
4
e
6
D
5
ODU Capacity
Master ≥ Slave1 ≥ Slave 2
A
B1
B
B2
C3
H3
g
i
D 7
H2
f
8 D
9
D
"b"
H4
k
j
G
sealing
x
l m n
D
D 10 11 D 12 D
*