LG MULTI V IV PRO ARUV100LLS4 Installation Manual page 31

Series Outdoor Units (2 Units ~ 4 Units)
Y branch method
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
Ⓓ : Downward Indoor Unit
Ⓔ : Connection branch pipe between
Outdoor units: ARCNN31
Ⓕ : Connection branch pipe between
Outdoor units: ARCNN21
Combination of Y branch/header Method
Ⓐ : Outdoor Unit
Ⓑ : 1st branch(Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Connection branch pipe between
Outdoor units : ARCNN41
Ⓕ : Connection branch pipe between
Outdoor units : ARCNN31
Ⓖ : Connection branch pipe between
Outdoor units : ARCNN21
Ⓗ : Header
Ⓘ : Sealing
Header Method
Ⓐ : Outdoor Unit
Ⓑ : Header branch
Ⓒ : Indoor Units
Ⓓ : Sealing
Ⓔ : Connection branch pipe between
Outdoor units : ARCNN41
Ⓕ : Connection branch pipe between
Outdoor units : ARCNN31
Ⓖ : Connection branch pipe between
Outdoor units : ARCNN21
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
Slave3
Slave2
Slave1
Master
h1
G
10 m or
less
Master ≥ Slave1 ≥ Slave 2 ≥ Slave 3
l 40 m (90 m : Conditional application)
h 30 m
Slave3
Slave2
Slave1
Master
h1
Master ≥ Slave1 ≥ Slave2 ≥ Slave3
G G
F F
E E
10 m or
less
l 40 m(90 m : Conditional application)
Slave3
Slave2
Slave1
Master
h1
G G
10 m or
F F
Master ≥ Slave1 ≥ Slave2 ≥ Slave3
less
E E
30 m
31
ODU Capacity
L165 m
ODU Capacity
L 165 m
ODU Capacity
L 165 m
40 m